TFT LCD three main process

||TFT LCD three main process

TFT LCD three main process


Share This Post

Share on facebook
Share on linkedin
Share on twitter
Share on email

TFT (Thin Film Transistor) LCD, which is an active matrix type liquid crystal display (AM-LCD), is widely used because of its fast response time and good display quality. It is used in notebook computers, desktop monitors, LCD TVs, LCD projectors and various large electronic displays.

TFT-LCD concept analysis and process introduction

The TFT type liquid crystal display is relatively complicated, and is mainly composed of a fluorescent tube, a light guide plate, a polarizing plate, a filter plate, a glass substrate, an alignment film, a liquid crystal material, a thin mode transistor, and the like. First of all, the liquid crystal display must first use a backlight, that is, a fluorescent tube to project a light source, which first passes through a polarizing plate and then passes through the liquid crystal. At this time, the arrangement of the liquid crystal molecules changes the angle of the light that penetrates the liquid crystal, and then the light must pass through the front color filter film and the other polarizing plate. Therefore, we can control the intensity and color of the last appearing light by changing the voltage value of the stimulating liquid crystal, so that a color combination of different hues can be changed on the liquid crystal panel.

Each pixel of the TFT-LCD is controlled by TFTs integrated on itself, which are active pixels. Therefore, not only the reaction time can be greatly accelerated, at least 80ms; the contrast and brightness are also greatly improved; and the resolution has been unprecedentedly improved. Because it has higher contrast and richer colors, the screen update frequency is also faster, so we call it “true color.”

Introduction to the three main processes of TFT-LCD

Front section

The process in the previous stage is similar to the semiconductor process, but the difference is that the thin film transistor is fabricated on the glass instead of the germanium wafer.

Middle section

In the middle section, the glass of the previous stage is used as a substrate, and is bonded to the glass substrate of the color filter, and liquid crystal (LC) is poured between the two glass substrates.

Rear section (module assembly)

The rear module assembly process is a production process in which the glass after the Cell process is assembled with other components such as a backlight board, a circuit, and an outer frame.

Wish our helpful posts can help you become more and more professional in the industrial displays business, maybe some of our products can be suitable for your industrial displays projects, please refer to our featured products below:

Featured Products

7 Inch IPS TFT LCD Display Module with 1024X600 Resolution
7 Inch TFT LCD Modules 800x480 Resolution with Capacitive Touch Screen
20x2 character OLED displays
I2C 20x2 OLED Character Display Serial Module,Yellow on Black
1.4 inch Graphic Display 128x64 LCD Module Serial SPI ST7565 Black on White
4.3 Inch Customized TFT LCD Display
4.3 Inch 480x272 Dots TFT LCD Display Modules with 24BIT RGB & Touch Panel Screen
Monochrome Display 0.96"128x64 OLED Module,Blue and Yellow
16X2 1602 Big Character Display Outdoor 16 Pin Aip31066 Sunlight Readable Lcd Monitor
Character LCD Display KS0066 16x2 Module,Arduino,Black on YG
10.1 Inch TFT LCD Raspberry Pi Touch Screen w/Small HDMI Driver Board,1024x600
monochrome 320x240 graphic lcd display modules
5.7"320x240 Graphic LCD Display Modules arduino Touch Screen
custom low power lcd module 16 pin 6800 8-bit parallel SPI 3-wire I2C serial screen 20x2 character lcd display
3.3V or 5V LCD Display 20x2 Arduino Connection HD44780 I2C Character
3.2 Inch OLED displays
Serial OLED Module Cheap Price 3.2"Display 256x64 Screens White on Black
240x128 dots Graphic lcd display module 240128 LCD Panel
3.3"COG LCD Display 240x128 Graphic Module Black on White
high quality factory price LCM 5V STN Blue type character lcd display 2004 20x4 COB module
3.3V or 5V Blue LCD Display 20x4 Arduino Library Character Modules

Subscribe To Our Newsletter

Get updates and learn from the best

More To Explore

Helpful Posts


LCD and OLED are two completely different display technologies, and are currently widely used in the field of smart phones and flat-screen TVs. At present, most users choose between these two display panel products. Which product should they choose? I will tell you the difference between LCD and OLED, and tell you how to pursue

7 Inch TFT LCD MODULE 800x480 Resolution
Helpful Posts

LCD Display Maintenance Solution

LCD Display Maintenance LCD Displays are high technical products, it is very sensible, need to handle very carefully, and should maintenance very carefully, we give some tips for how to maintenance LCD displays as follows: Strictly prevent static electricity The control and drive circuit in the module is a low-voltage, micro-power CMOS circuit, which is

Do You Want To Boost Your Business?

drop us a line and keep in touch

lcd display module technology posts