Top 5 Problems of LCD Display Explained For You

Top-5-problems-of-LCD-display-explained-for-you

Outlines:

1. What Are the five key LCD Display challenges you can face?

2. Obsolescence

2.1 Why does this issue happen?

2.2 What can we do?

3. Delivery

3.1 Why does this issue happen?

3.2 What is the Solution?

4. Quality

4.1 Why does this problem occur?

4.2 What is the solution?

5. Performance

 5.1 What are the performance issues?

5.2 What is the solution?

6. Cost

6.1  What is the cost issue?

6.2 What is the solution?

7. Conclusion 

 

 When you buy an LCD display, you may face the five most common issues, and you would like to contact us for their solution.

1. What Are The Five Key Lcd Display Challenges You Can Face?

There are only five problems with LCDs you can experience with them. Five simple words that can equate to significant LCD display challenges for you. 

  • Obsolescence
  • Delivery
  • Quality
  • Performance
  • Cost

But why would you ever call us? 

Here’s how you can successfully address and resolve the above 5 LCD challenges.

How Will We Help You?

We Simplify the conversation by identifying your exact pain points so we can quickly identify your needs and figure out if we can solve them.

In order of occurrence, these are the only five reasons to contact us:

What-are-the-five-key-LCD-display-challenges-you-can-face?

2. Obsolescence

The most common of the five issues are obsolete displays. The display suppliers have discontinued the display without providing a suitable replacement but our customers are still producing their end product.

Why Does This Issue Happen?

For the occurrence of the above issue there are two reasons which are following:

Two Reasons:

1) The overall volumes for this part reached a low threshold, and the supplier does not want to support it.

2) The components within the LCD have gone obsolete or over-dated.

What Can We Do?

Because we create custom displays, we have the ability to be able to produce un-obsolete displays.

1) If volumes are too low to support a custom display, we would recommend changing the end product to accommodate an available standard display. 

2) Solving an obsolescent component is more complicated. We have complete control of all parts within a display, except for the LCD driver IC and the color TFT LCD glass (monochrome glass is not an issue).  

Our process is to find the closest standard TFT panel and closest standard driver (if outdated). 

We do an obsolesce analysis on these replacement components to ensure we have the most extended lifetime with this new arrangement before starting the design work. We use our crossmatch program to redesign the display near these non-obsolete components.

Our focus is on eliminating any differences between the obsolete display and our new replacement. Not only is this process for new customers, but it’s the standard operating procedure for our current clients. We do not have obsolete configurations due to low volumes. We automatically go through the redesign process at no cost to our clients if any component goes obsolete within our display. Therefore, we come to our clients with the obsolescence notification and the solution to keep them up and running. 

Obsolescence

3. Delivery

Why Does This Issue Happen?

If we talk about delivery, longer than expected lead times and inconsistent deliveries lead to missed customer commitments and cause stress on manufacturing.

One of the main reasons customers are forced to switch suppliers is delivery. Learn what goes into actually getting a product to you and how CreateXdisplay might be different.

Missed deliveries are a killer with even if one component is missing, an assembly line goes down, missing revenue goals, affecting operations, and failing customers. Parts frequently have lengthy and variable lead times, leading to production and subsequent delivery problems if they’re not managed effectively.

What Is The Solution?

Proactively address this challenge within your company and the LCD display provider. Assure suppliers’ lead times are accurate in your MRP, Internally. Further, maintain a 2-4-week buffer stock or more depending on component scarcity and lead times.

The LCD display supplier can carry a buffer stock for your application. Effective display providers like CreateXdisplay can adjust production schedules, pressurize the upstream supply chain, partial ship quantities, and accelerate shipments. A good thing is applying these solutions reduces most delivery problems and handles unplanned customer demand. Because we have full production lines. From glass cleaning to final LCD.

Delivery

4. Quality

Quality should not be mistaken with performance as they both are different. This is where the LCD is not meeting the specification standards or simply a clients’ expectations.

Why Does This Problem Occur?

A manufacturing LCD failure is an expensive issue and even it could be more costly later.

Generally, quality issues arise in a few ways. 

First, the LCD’s failure to fulfill the performance specification as intended. This involves customers’ needs and defining what’s required to satisfy the product’s intent.

Second, there are the mechanical and visual aspects of LCD display manufacturing. This includes maximum defect limitations and meeting dimensional tolerances.

What Is The Solution?

A supplier that manufactures to your specific needs will minimize quality issues due to their expertise by modifying the LCD display for your particular product, ability to bring flexibility, and then actively supporting ongoing product improvements.

Quality

5. Performance

What Are the Performance Issues?

This is where the component does not work as you want or expect. The display could meet the specification very well. A little improvement to contrast, sunlight readability, response time, brightness, color gamut could make the end product work better and ultimately help our clients sell more of their product. 

Defining performance begins with the application and some basic questions listed below. 

  • Who is the end-user, and how will they interact with the LCD display? 
  • In what environment will it be used? 
  • How is it being sold to customers? 
  • What type of data does the LCD need to convey? 
  • Is it must be readable by the visually impaired?

What is the Solution?

We can define the ideal display type, pixel density, size, contrast, brightness, temperature range, color gamut response time, etc when performance is fully understood. 

Over-specifying any of these factors will add unnecessary cost, while under-specifying any factor will detract from the end product’s usability. Ensure performance is optimized for your application to be successful. It is critical to find an LCD display provider who will willing to adjust explain them to you in terms of the end-user experience and customize these particular variables.

Performance

6. Cost

What Is The Cost Issue?

Surprisingly cost issue is the least common. The pain of changing LCD suppliers is high, such that all the problems mentioned above end up costing more than a regular cost delta between competitive suppliers.

An LCD’s cost is an obvious challenge as it’s usually the most expensive component. The challenge is that cost is also difficult to quantify and properly understand. Determining the right price to pay depends on three main factors. 

  • What does the display need to do? 
  • What does the display not need to do?
  • What quantity is required? 

The ideal option in most cases is a custom or semi-custom display designed for its application. This is often the most cost-effective solution, despite what many think.

What Is The Solution?

You expect a lower price point with greater volume, which goes hand in hand with provider selection. 

Oversimplifying this for you, imagine three categories; 

  • low-volume – standard product distributors; 
  • mid-volume – built-to-order custom semi-custom suppliers; 
  • high-volume – consumer market suppliers.

You will never get to the optimal volume pricing with a low-volume stocking distributor for a high-volume consumer product. Start work with the right provider who serves that particular category after identifying where you fit.

System-level manufacturability is another cost challenge where display integration improvements can reduce product complexity, improve manufacturing time, and reduce system-level manufacturing defects. For the most seamless LCD integration, additional components such as buttons, LEDs, PCB boards, and connectors are more efficiently integrated on display than a separately assembled component. Clearly, in this case, the LCD cost will go up, but when done right, the system-level cost is reduced to result in a net gain.

Lastly, you need to know system-level costs. You are trading market share and profitability for display savings, and the net result may be decreased profit if you are giving up customer valued performance or functions. The opposite also holds; adding performance that is not necessary (these are attributes that the customer does not value) adds additional product costs.

Cost

7. Conclusion

Choosing the right supplier based on your volume and quality needs is essential. Then implement the optimal LCD solution with the optimal features and performance.  

We strongly encourage our clients to reach out to us if they are developing a new product that requires a display or has any one or more of these problems.

Please find out how easily we can integrate as your new display supplier with your organization. Contact us today.

Has-your-LCD-display-been-discontinued-or-obsolete?

What Makes a High-Quality and Affordable LCD Display?

Outlines:

1. The Difference in b/w Quality And Performance

1.1  Cosmetic

1.2  Electrical

1.3 Performance

2. Developing a Well-Defined Quality Assurance Process

2.1 Qualification

2.2 Sampling

2.3 Final Assembly Test

2.4 Process 

3. What Are Quality-Related Aspects to Consider When Buying an LCD Display

4. You Should Do Your Homework Before Buying

5. Conclusion

 

Are you looking forward to getting a high-quality, advanced and affordable LCD display but do not know what makes it high quality?

Today we will discuss some essential things that you need to know like quality vs. performance factors, developing a well-defined quality assurance process, and quality-related aspects that would be important when buying an LCD display.

A high-quality and affordable LCD display is necessary for fully managing end-user cases. Liquid crystal displays with defects and cosmetic deficiencies can only spoil your reputation with your buyers. However, people are often confused with the terms “performance”  and “quality,” which can lead to incorrect questions in their purchase decisions.

This article will explore the difference between these two terms and answer the question, What makes a high-quality and affordable LCD display?

1. The Difference in b/w Quality And Performance

In this part, we will talk about both performance and quality. 

Performance is an area of quality-focused display elements that the customer would want to see and interact with. 

Quality is about the manufacturer’s proficiency to meet agreed-to-all specifications and requirements. It’s about defining what the product is supposed to do, then producing the product to do that perfectly and consistently.

 

The-difference-in-B/W-quality-and-performance

Additionally, the quality typically contains three main areas:

1.1 Cosmetic

Cosmetic includes some items such as spots, missing pixels, scratches, LCD glass colors, pixel, backlight color, and other prominent or physical defects on the surface. There could also be wrongly assembled components or poorly fused joints on a craft level. 

LCD-cosmetic

1.2 Electrical 

Electrical Is the product operating at the correct voltage? Is the LCD over-driven or under-driven? Is it drawing the right amount of power?

Voltage-of-LCD

1.3 Performance

Operating temperature, response time, reliability, LED lifetime, contrast, brightness, color gamut, and viewing angle are Example aspects of performance.

Customers may have their unique requirements involving drop-test criteria, specific mechanical limitations, and electrostatic discharge (ESD) beyond these areas.

Performance-of-LCD

2. Developing a Well-Defined Quality Assurance Procedure

Designing a high-quality LCD display means that all quality requirements are fulfilled. To get this quality, the manufacturer needs to have a well-defined quality assurance (QA to accomplish this) process. It’s how to consistently meet all the quality requirements.

Developing-a-well-defined-quality-assurance-procedure

Here are the specific QA process areas you should know:

2.1 Qualification 

Qualification is the initial testing of the new product for every performance factor, including contrast, vibration, and temperature cycle.

Qualification-of-LCD

2.2 Sampling

It is very important to test a predetermined selection of displays to ensure consistency. This may be completely random, including every lot, some other sampling method depending on the sampling plan. In addition, the factors tested for the samples of the product could include every requirement or only a select few.

Sampling-of-LCD

 2.3 Final Assembly Test 

What is being tested after the display is fully assembled? 

  • Functionality,
  • cosmetic defects, 
  • voltage, 
  • all of the above areas? 

All the above factors are often determined by the product, as some require more strict testing than others.

2.4 Process 

What is the documentation, training, tools to ensure that each step of the manufacturing process is as simple and as consistent as possible? And what other processes are put in place to ensure that each display produced consistently meets the original design specification?

There could also be testing throughout the manufacturing process. For example, at PDI, we test 300%—including tests along the manufacturing path to catch any defects early on and avoid adding value to wrong parts, as well as burn-in tests that entail running displays for a certain amount of time at higher temperatures to catch any latent defects.

Process-of-developing-LCD

3. What Are Quality-Related Aspects to Consider When Buying an LCD Display?

From a customer perspective, there are several questions you need to ask your manufacturer before purchasing LCD displays from them:

1) What is the expected defect rate for the type of your desired display?

2) What is the test process of manufacturers? 

For example, 

  • What is tested? 
  • How are they tested? 
  • And how often are they tested?

3) What is the return merchandise authorization (RMA) process of the manufacturers? 

For example,

  • What happens when there is a defect?
  • Who pays for the product and shipping? 
  • What are the responsibilities on both sides? 
  • Will, there be a corrective action for every defect?
  • Or is there a defect-rate threshold that needs to be reached first?

What-are-quality-related-aspects-to-consider-when-buying-an-LCD-display

4. You Should Do Your Homework Before Buying

Delivering high-quality products is essential for maintaining good, long-term relationships with your customers. And that starts with ensuring your manufacturers produce parts that meet your quality requirements, which means getting clear answers to the questions we described above.

5. Conclusion

Do you need a new supplier that understands your unique display needs and can produce custom displays that address them?

We are a professional LCD manufacturer, we have lots of partners, so we can get reasonable prices for our customers. We have a strict quality control system, that’s why we can provide high-quality products. 

Now let us help. Contact us today.

 

Contact-CreateXplay

How To Choose The Right Components For Your Custom Display Module?

How-to-choose-the-right-components-for-your-custom-display-module?

Outlines:

  1. Understand your customer’s expectations
  2. What are the types of custom LCDs?
  3. What Type And Size Of Display Do You Need?
  4. Do you need a reflective or transmissive or transflective display?
  5. What functionality are you expecting from your display?
  6. What resolution is required to meet current and future needs?
  7. What level of backlight brightness do you need?
  8. What is your operating temperature range?
  9. Does your display module need a touch panel?
  10.  Do you need an extra layer of protection from a glass cover lens?
  11.  Get expert guidance from a professional manufacturer company like createXplay
  12.  Conclusion

 

Are you confused and want to know how to select the right and perfect components for your custom LCD module?

No need to worry; you are on the right page. Today we will discuss the right components like the backlight, temperature range, size, and type of the display for the custom display module. It will assist you in knowing how to customize your item in 2-3 months while saving the general expense of your item. We are hoping after reading this article you would be able to make the right decision.

1. Understand Your Customer’s Expectations

First, you need to understand your customer’s expectations from your product or services. We have seen many technological improvements in the display module space, such as monochrome custom LCD, TN, and FSTN LCDs and various functionality enhancements that can be done perfectly. It may be difficult for you to understand the benefits of all displays in this fast-paced world with many technological improvements. Unfortunately, everyone wants their product without knowing its pros and cons and a proper understanding of the technology.

Do you take the time to understand what you need or what you want to see in your product?

Many companies primarily establish only a particular display module without understanding whether other options may better suit their needs; they don’t thoroughly evaluate the customer’s expectations and result in under-performing or over-engineered products.

These factors significantly affect the cost, design cycles, and user experience. For example, the optical bonding of cover lenses sounds like a must-have is a mistake, as it may not always be required.

Understand-your-customers'-expectations

 Answer To Some Important Questions 

To get a clear understanding, you need to answer the following questions in detail. All companies need to ask these questions before engaging in a display project, and These questions are as simple as:

2. What Are The Types Of Custom LCDs?

There are many types of Liquid crystal displays that you can choose from. Some are modern technology, and others are older types of displays.

What-are-the-types-of-custom-LCDs?

There are some categories, and types of the LCD are:

Monochrome can be divided into:

  • Graphic LCD
  • Segment LCD

Multi-Color

  • CSTN(Kind of STN)
  • TFT
  • Silk-Printing for monochrome LCD(TN, HTN, STN, FSTN, DSTN, VA)
Different-types-LCD

3. What Type And Size Of Display Do You Need?

Custom LCD screens are available in various sizes ranging from tiny digital watches to enormous televisions. They are also used as glass or plastic panels, where LCDs use two glass panels.

You can measure the size in inches from corner to corner, and almost any size is available. The largest LCD we can make is 460*360mm because the whole glass panel size is 470*370mm.

There is a higher interest in a small custom LCD Display module. At present, the minimum size of the display can reach 10*10mm that we have designed and mass-produced.

What-type-and-size-of-display-do-you-need?

4. Do You Need A Reflective Or Transmissive Or Transflective Display?

Polarizer displays have three types, including reflective, transmissive, and transflective and you need to choose from them, as they are different.

  • Transmissive LCD 

It is always combined with a backlight, although it can be used without a backlight we generally don’t recommend this. 

  • Reflective LCD 

It does not have a backlight because its bottom film does not transmit light and the contents on the screen can only be seen with the external light source.

  • Transflective LCD 

It is a combination of both transmissive and reflective technologies so it can be used without backlight or with backlight.

What-type-and-size-of-display-do-you-need?

5. What Functionality Are You Expecting?

You should be clear about the functionality you are expecting from your display. A liquid crystal display is an electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. LCDs use a backlight to produce images in monochrome or color as they do not emit light directly.

What-funcationality-are-you-expecting?

6. What Type Of Interface Is Needed For Your Product?

We divided the interface of LCD into 3 kinds. Pin assignment, conductive tape, and FPC.

If the LCD is small and not enough space for the connection to the PCB, we will choose conductive tape for it.

If there is enough space for connection, we will choose pin assignment or FPC. It can be determined by the product’s frame.

If there are so many icons and symbols in the LCD, we will choose FPC for it, then it will be a COF frame. Because it needs an extra IC to drive.

If the IC is on the board, there will be so many ways for the connection. PIN assignment, conductive tape, or FPC all can be. (Yes, FPC also can be, because the FPC can be treated as a flexible way for the frame, and IC can be on the board, FPC as an extended part of the connection.)

What-type-of-interface-is-needed-for-your-product?

7. What Level Of Backlight Brightness Do You Need?

Generally speaking, when the size is fixed, the higher the brightness required, the higher the thickness of the backlight will be because brighter lamp beads are used.

If the thickness is fixed, then another way to increase the brightness is to increase the size of the backlight so that more lamp beads can be added.

The third way is to change different led beads, there are many different led beads for backlights. Like Philip, Samsung, etc.

What-level-of-backlight-brightness-do-you-need?

8. Does your display module need a touch panel?

A touch panel is a piece of equipment that lets users interact with an LCD module by touching the screen directly. Incorporating features into the monitor like sensors that detect touch actions makes it possible to issue instructions to a device by having it sense the position of a finger. A touch panel can be a resistive touch panel or a capacitive touch panel.

Normally, a monochrome LCD doesn’t need a touch panel. TFT LCD will need a touch panel.

Does-your-display-module-need-a-touch-panel?

9. What Is Your Operating Temperature Range?

Generally speaking. We divided temperature ranges into 4 tiers.

First, the working temperature is 0 to 50 degrees, storage temperature is -10 to 60 degrees.

Second, the working temperature is -10 to 60 degrees, storage temperature is -20 to 70 degrees.

Third, the working temperature is  -20 to 70 degrees, storage temperature is -30 to 80 degrees.

Forth, the working temperature is -30 to 80 degrees, storage temperature is -40 to 90 degrees.

And it’s clear that the price is from low to high. You need to choose from them for your custom display module. 

What-is-your-operating-temperature-range?

10. Do You Need An Extra Layer Of Protection From A Glass Cover Lens?

You should be clear about the protection level of the required display. You need to know clearly whether your display needs an extra layer of protection from a glass cover lens or not. If yes then go for it. 

The above list is not a complete list of questions but food for thought – enough to move the design process on solid ground.

These fundamental questions help display module manufacturers quickly whittle the choices to a handful. This does not mean that further adjustments are not required, but it makes the process of choosing the correct display smoother and less cumbersome.

Do-you-need-an-extra-layer-of-protection-from-a-glass-cover-lens?

11. Designing Your Custom LCD

We always support our customers with custom LCD modules from medical, automotive, and test appliances to industrial applications. Whether your idea needs a small LCD module or even completely specialized experienced customer support, our team guides you and helps you design your custom display screen.

The process works with you supplying your dimensions and sharing artwork. Our specialist will guide you on the most practical design for your project. This process includes the need for a straightforward design of LCD, the type of interface, power consumption backlight options, space constraints, temperature ranges, viewing angles, etc.

12. Conclusion

A custom segment display LCD can assist you with customizing your item while likewise saving the general expense of your item. The entire cycle will take you around 2-3 months, which will incorporate the planning stage, prototyping stage, and getting your custom fragment LCDs conveyed to your doorstep. Higher requesting amounts will lessen the expense per piece of every unit, subsequently driving down the cost of your eventual outcome.

Get expert guidance from an experienced manufacturer like createXplay.

A well-versed, respected, and experienced display module manufacturer, such as createXplay, can provide the guidance necessary to wade through the multitude of choices.

Reach out to your friendly createXplay salesperson for additional guidance and assistance. With expertise spanning across a wide range of display and touch sensor technologies, as well as glass cover lenses, createXplay can point you in the right direction. 

Contact-CreateXplay

Things You Need To Know About Segment LCD Modules

Things-you-need-to-know-about-segment-LCD-modules

Outlines:

  1. What Are The Components Of The Segment LCD Module?
  2. What Parts Of LCD Are Composed Of?
  3. What Parts Of The Backlight Are Composed Of?
  4. What Are Parts Of The PCB Board Composed Of?
  5. The Way That LCD And Backlight Combine With PCB Board
  6. What To Pay Attention To When Using The Module?
  7. Final Words

Are you looking for a segment LCD? 

Are you wondering about the things that are essential and you need to know about Segment LCD modules?

Generally speaking, the segment LCD module is composed of LCD, backlight, and PCB board.

The LCD part includes glass, liquid crystal, polariser, PIN pin, and various glues.

The backlight mainly includes LED lamp beads, light guide plate, diffusion film, shading glue and other parts.

The PCB board comprises the aluminium substrate, various types of capacitors and resistors, IC and solder points, and logic circuits.

When we produce and use LCD modules, we will encounter various problems, among which the most important points are: 

  • Ensure that the liquid crystal is not damaged by knocking; 
  • Ensure that there is no dark area in the light-emitting area of ​​the backlight; 
  • Ensure that the capacitor resistance and IC on the PCB board are soldered to the corresponding position stably.

Some points need to be paid attention to, which we will introduce in detail in the article.

Guess what You are at the right place. Here, we list things and questions you need to know about segment LCD modules. Some points need to be paid attention to, which we will introduce in detail in the article.

1. What Are The Components Of The Segment LCD Module?

A seven-segment display is electronic display equipment for presenting decimal numerals that is an option to the more complex dot matrix displays.

The segment LCD module is composed of: 

  • LCD

A liquid-crystal display (LCD) is a horizontal-panel display or electronically changed optical equipment that utilises the light-modulating characteristics of liquid crystals mixed with polarisers. 

  • Backlight

LCD creates management of visible light. In the absence of this light, we add a backlight during making LCDs for visibility. Many choices to obtain one of them are appearance vs cost. The display modules are integrated with different types of backlight. What we usually use for LCDs are LED backlights. Because it’s easy to make custom designs and easy to control the brightness, and it has lots of colour options. Usually, the backlight will be white. Orange and green, blue, red are also commonly used.

  • PCB Board

A printed circuit board (PCB) is a layered sandwich formation of conductive and insulating layers. PCBs have two complementary functions. The first is to affix electronic parts in selected locations on the outer layers applying to solder. The second is to give strong electrical connections (and reliable open circuits) between the component’s terminals in a controlled manner, often referred to as PCB design.

What-are-the-components-of-the-LCD-display?

2. What Are Parts Of LCD Composed Of?

LCDs are used in a big area of purposes, including computer monitors, aircraft cockpit displays, instrument panels, LCD televisions, and indoor and outdoor signage.

 The LCD part includes 

  • Glass 
  • Liquid crystal 
  • Polariser
  • PIN pin
  • Various glues.

Liquid crystals do not transmit light directly, instead of use a backlight or reflector to produce images in shade or monochrome. LCDs are available to display random images or fixed images with low data content, which can be displayed or stored.

What-parts-of-LCD-are-composed-of?

3. What Are Parts Of The Backlight Composed Of? 

Liquid crystals don’t release light directly. It usually will need a backlight to show the inner icons and letters. But reflective LCDs do not need a backlight. It has a reflective polariser to expose the internal icons and letters.

The backlight mainly includes LED lamp beads, a light guide plate, diffusion film, shading glue, and other parts.

An LCD backlight module usually includes: 

  • Backlight sources 
  • A light-diffusion plate 
  • A reflector 
  • A brightness enhancement film (BEF)
  • A light-guide plate (LGP). 

Formally, cold cathode fluorescent lamps, also known as CCFLs, need enough backlighting for LCD panels.

What-parts-of-the-backlight-are-composed-of?

4. What Are Parts Of The PCB Board Composed Of?

Printed circuit boards (PCBs) are generally horizontal laminated composite manufactured from non-conductive substrate stuff with layers of copper circuitry occupied internally or on outer covers.

The PCB board is mainly composed of:

  • Aluminium substrate 
  • Various types of capacitors and resistors 
  • IC and solder points 
  • Logic circuits

They can be as plain as one or two layers of copper; they can have fifty or more in high-density applications.

What-parts-of-the-PCB-board-are-composed-of?

5. The Way That LCD And Backlight Combine With PCB Board 

LCD panels usually use thinly-coated metallic conductive pathways on a glass substrate to form the cell circuitry to control the panel. It is generally impossible to use soldering techniques to connect the panel to a separate copper-etched circuit board directly. Instead, interfacing is achieved using anisotropic conductive film or, for beneath densities, elastomeric connectors.

LCD has two upper and lower glass, so there is usually a crystal filling port on the left or right side, and this crystal filling port will be sealed with glue. At the same time, this mouth also needs to avoid being bumped. So generally, the backlight will add an extra 1 mm to protect the seal. In addition, the minimum shading area of the backlight is 7mm. Therefore, the size of the backlight is generally 8mm longer than that of the LCD. 

The-way-that-LCD-and-backlight-combine-with-PCB-board

6. What To Pay Attention To When Using The Module?

When we produce and use LCD modules, we will encounter various problems, among which the essential points are: 

  1. Ensure that the liquid crystal is not damaged by knocking; 
  2. Ensure that there is no dark area in the light-emitting area of the backlight; 
  3. Ensure that the capacitor resistance and IC on the PCB board are soldered to the corresponding position stably. 

What-to-pay-attention-to-when-using-the-module?

7. Final Words 

As mentioned above, the LCD comprises two upper and lower pieces of glass. If there is a pin on one side, the glass above needs to reserve 2.5mm for the pin. If it is a two-sided mounting pin, you will need to leave 2.5mm on the top and bottom for mounting the pin because 1.5mm needs to be reserved around the VA area for sealing glass glue. So let’s use an example to illustrate: For example, the VA area of LCD is 10*10mm, and the pin feet are on both sides, then the size of the small glass is 13*13mm, and the size of the large glass is 13*18mm. 

CreateXplay provides custom designs for Segment LCD and Graphic LCD Different Shapes, Different Sizes, Different Backlights.

Contact-CreateXplay

Why Is The Price Of The Same LCD Produced By Different Manufacturers So Different?

Outlines:

  1. What are the parts of the LCD screen?
  2. Different types of liquid crystals have very different costs
  3. Different glass materials will also lead to different costs
  4. Different glue will also lead to different costs
  5. Different polarizers will also lead to different prices
  6. Different display types will also have big price differences
  7. Different glass thicknesses will also lead to different prices
  8. Different silk printing requirements will also lead to different prices
  9. Some other factors affect the price
  10.  Conclusion

Are you confused and thinking, why is the price of the same LCD produced by different manufacturers so different?

Well, we’ll try to explain everything in this article; we need to know how to get a new LCD design before talking about the factors that influence LCD price.

When some companies want to make their new products, they need an LCD screen and custom designs for LCD.

First of all, they will have an idea about what they need from the following list:

  • LCD size
  • working temperature, 
  • viewing angle, 
  • connection types, 
  • LCD frames, 
  • need backlight or not,
  •  inner symbols, icons, etc.

1. What Are The Parts Of The LCD Screen?

Some of the components: 

  • Diffuser
  • Polarizer
  • Color filter
  • Power supply. The power supply is responsible for supplying electric current to every component of an LCD screen.
  • Backlight
  • Inverter
  • The motherboard of the LCD screen
  • The array of liquid crystals

2. Different Companies Have Different Types Of Liquid Crystals. 

Other companies produce various crystals determined by the different working ranges with very different costs. Different liquid crystals will determine the lifespan of LCDs and the working temperatures of LCDs. 

3. Different Companies Use Different LCD Glass Materials 

Different companies use different LCD glass materials that will lead to different costs. Different glasses for the liquid crystal display will also determine LCD’s lifespan. High-quality and better glasses can keep the LCD safe from scratches and damages. 

4. Different Types Of Glue Used By Various Companies Will Lead To Different Costs For LCD

Glue is essential for the long life of the liquid crystal display. Different types of glue used by different companies will lead to different costs for LCD. Better glues can keep the LCDs having a longer lifespan too. And It keeps the LCD stronger, or it will help the LCDs not easily break. Remember that worse glues may only work for 1 or 2 years and lose their functions. 

5. Different Companies Add Different Kinds Of Polarizers. 

Polarizers play an essential role in the price of liquid crystal displays as they will vary a lot so lead to different prices. That’s why different companies have different prices for their products. Remember, transmissive, transflective, and reflective LCDs use other polarizers from different companies. Reflective and transmissive are cheaper than transflective as it is expensive enough.  

6. Different Display Types Will Have Big Price Differences. 

The key part of the LCD screen is a display type because the display types will determine which kind of liquid crystal will be used. If we look from cheap to expensive is TN, HTN, STN, VA, FSTN(CSTN and DSTN are all FSTN, so we treat them as one kind). So if different companies will use STN instead of TN for the display, the price will be high ultimately.

7. Different Glass Thicknesses Cause The Different Prices

Generally speaking, glass thickness typically has three tiers of LCD, 1.7mm, 2.0mm, and 2.8mm. And the price from low to high is 2.8mm, 2.0mm, 1.7mm. Because producing the thinner display is the most difficult for the manufacturers, it will have a higher defective rate.

The 2.8mm is the most common thickness, the thinner, the more expensive it. Different companies will use them accordingly, and the price will vary from low to high.

8. Different Silk Printing Requirements Will Also Lead To Different Prices.

If you need different silk printing, it will cause different prices because one color silk printing is easy, then two colors than three colors and 4 and 5 and will cost you more if customers need different colors, the more expensive because it will be much more challenging to print different colors. 

9. Some Other Factors Affect The Price Of Liquid Crystal Display. 

Other factors like pin length and pin shapes etc., and particular size and special deals with edges of LCDs will cost much more. 

Factors that influence the price of LCD:

And all these factors listed below are also the most critical factors that will influence the price of LCD. The important factors are the following:

  • Unit Price
  • MOQ (minimum order quantity)
  • Backlight
  • Tooling Fees

 

1. Unit Price

Usually, people have confused about the unit price of custom LCDs. But it’s easy to know the approximate cost of them.

Let’s talk about the factors that will affect the price.

  • Display Mode

Generally speaking, let’s take an example with the same size, same thickness LCD. The price from cheap to expensive is TN, HTN, STN, VA, FSTN, DFSTN because the viewing angle will be wider from TN to DFSTN.

  • Viewing Mode

Viewing modes include Transmissive, Transflective, Reflective.

Here we also treat other factors the same. Size, display mode. Temperature range, etc.

Reflective is cheapest, then transmissive, then transflective.

  • Temperature Range

Generally speaking, all companies divided temperature ranges into four tiers.

First, the working temperature is 0 to 50 degrees, and the storage temperature is -10 to 60 degrees.

Second, the working temperature is -10 to 60 degrees, and the storage temperature is -20 to 70 degrees.

Third, the working temperature is -20 to 70 degrees, and the storage temperature is -30 to 80 degrees.

Forth, the working temperature is -30 to 80 degrees, and the storage temperature is -40 to 90 degrees.

And it’s clear that the price is from low to high. Because the requirements for the liquid crystals are different, the higher and lower temperature you need, it will be more expensive.

2. COG or COB or LCD only

Why we talk about the LCD frame is because it’s an essential factor that influences price.

COG means chip on glass, and we need to get a suitable IC for it. Because the IC is on glass, it has more production processes requirements. So it will be expensive.

COB means chip on board, there is a lot of space for a big IC to drive the LCD, so the producing requirements are not that fierce.

LCD only is easy to understand the reason. Because we only need to produce the glass and bond the PINs or FPC or conductive tapes on it.

We don’t talk about COF because COF is commonly used in TFT screens. And here we talk about monochrome LCD only.

  • Segments It Needs To Display

It is also easy to understand the meaning of the title. The more segments, the more liquid crystal materials are needed, and the more PINs are required. So under the same conditions, the more segments, the higher the price.

  • PINs

Actually, this part can be combined with the 5th point. More segments you need, more PINs you will need. Then the price will be higher.

  • LCD Size

LCD size is the most important factor that will influence the price of LCD. It’s easy to understand. The bigger it is, the more expensive it is.

3. MOQ (Minimum Order Quantity)

The reason why there will be MOQ should be explained in more detail.

First, making a new mould to make LCDs will change a whole production line for a new item. A production line includes more than 40 processes. And once it starts running. It will take a few minutes to adjust the whole production line and need to use raw materials to test the preciseness of the production line. It will cost a lot when starting production.

And once we changed the whole production line for a new item. It also takes some time to change the moulds. So it’s also a high cost for that.

4. Backlight

Typically, 90% of customers who need LCD will also need a backlight. Because only reflective LCDs don’t need a backlight.

There will also be a massive difference in the price of the backlight. Under normal circumstances, we divide the backlight into three types. The first very commonly used backlight is directly connected to the LCD and soldered on the motherboard. This backlight does not require a specific structure, and its size only needs to be designed according to the size of the LCD and PCB board. The second is the backlight that is attached to the LCD. Generally, we will help it design a wall so that the LCD and the backlight can be better fixed together so that the entire module structure can be more stable. The third is to add an iron frame to the second one, making the structure more stable and helping protect the LCD screen.

5. Tooling Fees

And the tooling fee also has significant differences between the different kinds of LCD and backlights you need.

Tooling fee for LCD from cheap to expensive is TN, HTN, STN, VA, FSTN, DFSTN.

Tooling fee for backlight from cheap to expensive as discussed, the more complex the frame is, the more expensive it will be.

And tooling fee for PCB board. The more extensive and more complex it is, the tooling fee will be higher.

10. Conclusion

The price of different companies can be different because of varying liquid crystals, different LCD glass, different diffuser films. Moreover, different compensation films and pin assignments can use bad bronze. FPC can use inventories or not-good bronze materials. Conductive tapes can also be different, and the material will determine the conductivity. Backlight can be different because of different LED beads, compensation film, and Light guide plate material.

CreateXplay is a professional manufacturer that creates monochrome LCD screens. We provide custom designs for Segment LCD at a very affordable price. These LCDs have different sizes, different shapes, and different backlights.

If you want a custom segmented LCD, then click on the link given below:

https://createxplay.com/