Liquid crystal layer

The core of TFT LCD is the liquid crystal layer, which is composed of liquid crystal material located between two parallel transparent glass substrates. The arrangement of liquid crystal molecules can be changed by the action of electric field, thereby adjusting the degree of light transmission.

Thin Film Transistor (TFT)

Behind each pixel, there is a small thin film transistor, usually made of amorphous silicon. Each transistor acts as a switch, controlling the on and off state of the corresponding pixel by applying power to the liquid crystal layer.

Color filter

Color filter is the key component for the colorization of liquid crystal display. Only through the color filter can the high grayscale liquid crystal display achieve full color. Therefore, the reason why the color filter works is to generate RGB three primary lights by filtering, and then mix the three primary lights in different strength ratios to present various colors, so that the LCD can display full color.

Backlight

TFT LCD usually requires a backlight to provide brightness. Common backlight technologies include cold cathode fluorescent lamp (CCFL) and LED. In recent years, LED backlight has gradually replaced CCFL due to its high efficiency, environmental protection, and thin design.

Pixel drive circuit

The operation of TFT LCD requires complex electronic drive circuits to control the electric field and color of each pixel.

Small and medium size screen

Special-shaped screen

Clean Room

Research & Development Test

Complete Automation

Assembly Line

High resolution

TFT LCD displays can provide high resolution, ensuring the clarity and details of images and text, which makes them particularly suitable for applications that require precise visual performance, such as computer monitors, smartphones and TVs, and medical device displays. Currently, high-resolution TFT LCD displays have reached 4K (3840 x 2160 pixels).

For example

medical equipment display is 23.8 inches 3840*2160, which can achieve the ultimate resolution.

Some professional displays even go up to 8K (7680 x 4320 pixels).

For example

a 55-inch home entertainment TV with a resolution of 7680*4320 can achieve a clear visual experience.

Wide Color Gamut

TFT LCD displays are able to display rich colors, providing more accurate and realistic images, which is especially important for color-sensitive applications such as graphic design, movie viewing and gaming.

For example

1920*1080 resolution, 16.7M, 72% NTSC, means 16.7 million colors. (far higher than the 12-14 million colors that the human eye can recognize)

3840*2160 resolution, 1.7B display colors, indicating 170 million colors.

High Contrast

Contrast refers to the measurement of different brightness levels between the brightest white and the darkest black in the light and dark areas of an image (that is, the ratio of the brightness of the brightest part of an image to the brightness of the darkest part of the image). The larger the difference range, the greater the contrast, and the smaller the difference range, the smaller the contrast. A good contrast ratio of 120:1 can easily display vivid and rich colors. When the contrast ratio is as high as 300:1, it can support all levels of color. Generally speaking, the greater the contrast, the clearer and more eye-catching the image, and the brighter and more colorful the color; while a small contrast ratio will make the entire picture gray. The typical value of LCD contrast is 1000:1, which can provide vivid, rich colors and a faster image conversion experience.

Fast response time

TFT LCD displays have a fast response time, which helps prevent image blur and tailing, and is particularly suitable for high-speed video, games and other applications that require fast image switching. Entry-level monitors may have a slightly higher response time, about 6ms to 8ms, and high-quality game consoles or special monitors may have a response speed of less than 5ms. The human eye’s reaction speed is 0.20 seconds (20 milliseconds). When the fast response time is combined with a high-frequency drive signal (above 64Hz), you can get an extreme action perception that exceeds the human eye’s reaction speed.

Wide viewing angle

TFT LCD displays usually have a wide viewing angle range, so that the image remains stable and clear when viewed from different angles, which is crucial for multiple viewing and large display applications. The viewing direction of TFT is 89°/89°/89°/89°/89° at 3, 6, 9, and 12 o’clock, that is, full viewing angle display.

Thin design

The thin design of TFT LCD displays makes them suitable for various portable devices such as laptops, tablets and smartphones, which helps reduce the weight of the devices and increase portability. Generally speaking, the thickness of TFT LCDs in portable devices such as laptops, tablets and smartphones is usually between a few millimeters and more than ten millimeters.

 

Low power consumption

TFT LCD displays usually have lower power consumption when displaying static images, which is particularly important in portable devices. In addition, TFT LCDs using LED backlight technology can also provide higher energy efficiency.

For example

55-inch TFTLCD, 1920*1080 TFT glass, power consumption ratio is 8W/0.822 square = 10W/square meter

P2.5 LED screen power consumption is 1000W/square meter.

The power consumption ratio of the same display area is: TFT/LED = 10W/square : 1000W/square = 1:100.