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FSTN Dot Matrix and Segment Positive Display Grey Background and Blue Letters COB LCD Module for Electricity Meter.png

Table of Contents

Tutorial: Dr Pan Teaches How LCD Module Works And How To Choose Good-Quality LCD Module

Dr Pan:Welcome to DISPLAY Museum. I am Dr Pan, the curator of Museum.

Greg:Hello, Dr Pan. I am Greg. I came here to learn about LCD module.

Dr Pan:Hello, Greg. In short, it consists of LCD screen and LED backlight. The working principle of LCD module is that LED backlight module emits uniform light to the surface as the light source of LCD screen and LCD screen which works as a switch is to control the light “on/off”, resulting in the display of the image.

In order to control the display content, we have to use IC to issue the commands. According to the different locations of IC, it can be divided into COG and COB LCD module. Based on the display content, it can be divided into segment, dot matrix, graphic and character LCD module.

Normally, it is much thicker than OLED since it has a backlight as the light source. It can be very thin, but the thinner it gets the more technical problems we have to solve, the higher the price will be. The advantage of LCD module technology is that it is very mature and very stable, the unit price is significantly lower than OLED’s.

Greg:Dr Pan, how can we confirm if LCD module is good quality?

Dr Pan: That is a good question. There are several factors we need to consider.

  1. Defective pixel. The less the better. LCD screen is composed of many display points.  If there is no defective pixel, it is class AA; it is class A when there are less than 4 defective pixels and only 1 bright spot; and it is class B when there are less than 4 defective pixels and 2 bright spots.
  2. The brighter the better.
  3. Contrast rate. It means the comparison between the brightest part and the darkest part of LCD. The minimum contrast rate is 350:1, the higher the better.
  4. Response time. The faster the better. The minimum response time is 30ms, it means 33 frames per second.
  5. Color Gamut. The higher the better.
  6. Viewing angle. The wider the better. TN LCD is only 90 degree, HTN is 110 degree, STN is 210 degree to 255 degree, FSTN is the advanced version of STN with one compensation film, the view angle is better.

Greg:Thank you, Dr Pan. Now I got it.

Welcome to contact us if you have any question.

Customize Your Monochrome LCD Module From a Chinese Manufacturer

DISPLAYBLY is among the top monochrome LCD module manufacturers in China. We have been supplying both small and large companies with eco-friendly and ISO-certified monochrome LCD modules in different structures, including COB structure,  COG structure, and hybrid structure, standard dot-matrix LCD modules， including graphic LCD module and character LCD module， at wholesale for 2 decades. 

VA Segment Negative Display Multi color Silk printing Black Background and White Letters COB LCD Module for Hi fi Equipment.jpg

COB LCD Module

One low cost, stable, usually used in LCD module with sophisticated and complex functions. Simple monochrome COB LCD module could be replaced by monochrome COG LCD module .

TN Segment Positive Display Grey Background and Black Letters COG LCD Module.jpg

COG LCD Module

One low cost, steady and compact size monochrome COG LCD Module, simple structure and easy for mass production.

240 by 128 graphic LCD module.jpg

Graphic LCD Module

One low cost, standard dot matrix LCD module, with no tooling fee, format of graphic resolution including 122x32, 128x64, 128x128, 144x32, 160x160, 192x64, 192x128, 240x128, 320x240 and etc

20 by 2 Character STN Positive Display Yellow Background Black Letters COB LCD Module.jpg

Character LCD Module

One low cost, standard dot matrix LCD module, with no tooling fee, available from 8x2, 12x2, 16x1, 16x2, 16x4, 20x2, 20x4, through to 40x4 formats with 5x8 dot matrix characters.

TN Segment Positive Display Grey Background and Black Letters LCD Panel for Massage Chair.jpg

Segment LCD Screen

Only be used for simple display content of numbers and patterns at a specified position. Number “8” is composed of 7 segments

128 by 32 Dot Matrix FSTN Negative Display Blue Background and White Letters COG LCD Module 1.jpg

Dot Matrix LCD Screen

It consists of many arrays of dots. Each dot is independently controlled and it can display complex variable character or pattern.

20 by 2 Character STN Positive Display Yellow Background Black Letters COB LCD Module.jpg

Character LCD Module

One low cost, standard dot matrix LCD module, with no tooling fee, available from 8x2, 12x2, 16x1, 16x2, 16x4, 20x2, 20x4, through to 40x4 formats with 5x8 dot matrix characters.

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Feature Products

There are more than 100 new prototypes being developed every month and only a few selected typical feature products are displayed. 

VA Segment Negative Display Blue color Silk printing Black Background and White Letters COB LCD Module for Air Conditioner.jpg

Display Type: VA / Segment

Display Size: Customized

Display Mode: Negative

Display effect: Black Background and White Letters with Blue Silk Printing

The Structure of LCD Module: COB LCD Module with Touch Button

Application: Air Conditioner

FSTN Segment Grey Background and Blue letters Positive Display COB LCD Module for Air Purifier.jpg

Display Type: FSTN / Segment

Display Size: Customized

Display Mode: Positive

Display effect: Grey Background and Blue Letters

The Structure of LCD Module: COB LCD Module with Touch Button

Application: Air Purifier

STN Segment Negative Display Blue Background and White Letters COB LCD Module for Fueling Equipment.jpg

Display Type: STN / Segment

Display Size: Customized

Display Mode: Negative

Display effect: Blue Background and White Letters

The Structure of LCD Module: COB LCD Module with Touch Button

Application: Fueling Equipment

STN Segment Positive Display Yellow green Background and Blue Letters COB LCD Module for Electricity Meter.jpg

Display Type: STN / Segment

Display Size: Customized

Display Mode: Positive

Display effect: Yellow-green Background and Blue Letters

The Structure of LCD Module: COB LCD Module

Application: Electricity Meter

TN Segment Positive Display Grey Background and Black Letters COB LCD Module for Massage Chair.jpg

Display Type: TN / Segment

Display Size: Customized

Display Mode: Positive

Display effect: Blue Background and White Letters 

The Structure of LCD Module: COB LCD Module

Application: Massage Chair

HTN Segment Negative Display Blue Background and White Letters COB LCD Module for Illumination Equipment.jpg

Display Type: HTN / Segment

Display Size:Customized

Display Mode: Negative

Display effect: Blue Background and White Letters 

The Structure of LCD Module: COB LCD Module

Application: Illumination Equipment

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Customize Your Monochrome LCD Module From a Chinese Manufacturer

DISPLAYBLY is among the top monochrome LCD module manufacturers in China. We have been supplying both small and large companies with eco-friendly and ISO-certified monochrome LCD modules in different structures, including COB structure,  COG structure, and hybrid structure, standard dot-matrix LCD modules， including graphic LCD module and character LCD module， at wholesale for 2 decades. 

VA Segment Negative Display Multi color Silk printing Black Background and White Letters COB LCD Module for Hi fi Equipment.jpg

Monochrome COB LCD Module

Low cost, stable, usually used in LCD module with sophisticated and complex functions. Simple monochrome COB LCD module could be replaced by monochrome COG LCD module .

TN Segment Positive Display Grey Background and Black Letters COG LCD Module.jpg

Monochrome COG LCD Module

Low cost, steady and compact size monochrome COG LCD Module, simple structure and easy for mass production.

Quote for Custom LCD Module

Fill in the online form. We will contact you within 1 working day, please pay attention to the email with the suffix “@displaybly.com”.

240 by 128 graphic LCD module.jpg

Monochrome Graphic LCD Module

One low cost, standard dot matrix LCD module, with no tooling fee, format of graphic resolution including 122x32, 128x64, 128x128, 144x32, 160x160, 192x64, 192x128, 240x128, 320x240 and etc

Monochrome Character LCD Module

One low cost, standard dot matrix LCD module, with no tooling fee, available from 8x2, 12x2, 16x1, 16x2, 16x4, 20x2, 20x4, through to 40x4 formats with 5x8 dot matrix characters.

Monochrome LCD Module Solutions For OEMs

Monochrome LCD Modules are highly popular due to their low-cost and high customization. Our experienced team can develop the right solution with an integrated assembly of different technologies to your hands.

Display Technologies

  • Display type: TN, HTN, STN, FSTN and VA
  • Transmissive, transflective and reflective polarizers
  • Positive and negative modes
  • ITO glass thickness： 0.4mm, 0.55mm, 0.7 mm and 1.1mm
  • Static driving mode and dynamic driving mode
  • Shapes: round, rectangle， octangle and through-holes
  •   View angle: 12 O’clock, 3 O’clock, 6 O’clock, 9 O’clock, and full view angle
  • background-color customization： grey, blue,  yellow-green, black  and so on
STN Segment Negative Display Blue Background and White Letters COB LCD Module for Charging Device.jpg

Assembly Services

  • Silkscreen: Black mask, red, green, blue, multi-color printing
  • Touch solutions: one-sided ITO film touch technology and double-sided ITO film touch technology
  • In-house backlight assembly
  • customizable PCBA with touch buttons
  • Integration with overlay resistive or capacitive touchscreen 
  • Surface treatment： strengthened glass， polarizer with UV filter
  • Interface: I2C, SPI
  • Connection: PIN, zebra, FPC

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We will contact you within 1 working day, please pay attention to the email with the suffix “@displaybly.com”. 

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