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What are the structure and advantages of TFT displays?

Views: 287     Author: Reshine Display     Publish Time: 2023-09-12      Origin: Site

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What are the structure and advantages of TFT displays?

TFT Display (Thin-Film Transistor Liquid Crystal Display) is a common flat panel display technology, and its structure consists of the following main parts:


Structure of TFT Display

1. Backlight: TFT LCDs usually need a backlight to provide background brightness. Common backlight sources are cold cathode fluorescent lamps (CCFL) and LED backlights.

2. Substrate: The backplane of an LCD is a transparent glass or plastic substrate used to support other components and provide structural stability.

3. Transparent Electrode: The substrate is coated with a layer of transparent conductive material, such as Indium Tin Oxide (ITO), which is used to transmit electrical signals and control the orientation of the liquid crystals.

4. Liquid Crystal Layer: The liquid crystal layer is located between the two transparent electrodes and consists of liquid crystal molecules. The arrangement of the liquid crystal molecules can be changed by the action of an electric field, thus controlling the degree of light transmission.

5. Color Filter: A red, green, and blue color filter is placed above the liquid crystal layer to adjust the color of light transmitted through the liquid crystal.

6. Thin-Film Transistor: A transistor is created by depositing thin-film material on transparent electrodes on the base plate. Each pixel point has a corresponding TFT, which is used to control the orientation of the liquid crystal molecules and the degree of light transmission.

7. Encapsulation Layer: The top of the LCD is covered with an encapsulation layer to protect the internal components and provide structural support.


The above is the basic structure of a TFT LCD. There may be some differences between different models and applications, but the overall principle and structure are similar. This structure allows for a high resolution, high brightness, and fast response image display.


Advantages of TFT Display:

1. High image quality: TFT LCD can provide high resolution and detailed image display effects. Each pixel is controlled by an individual thin film transistor (TFT), which can precisely regulate the degree of light transmission for more accurate color representation and image detail.

2. Good Viewing Angle and Contrast Ratio: TFT LCDs have a wide range of viewing angles, allowing the viewer to obtain similar image quality from different angles. In addition, TFT LCDs can provide a high contrast ratio, making images clearer and sharper.

3. Fast Response Time: The thin-film transistors (TFTs) of TFT LCDs can quickly switch the orientation of the liquid crystal molecules to achieve fast pixel response time. This allows TFT LCDs to show smooth motion effects when playing moving images or videos, avoiding blurring or ghosting.

4. Low Power Consumption: Compared to other display technologies, TFT LCDs usually have lower power consumption. This is because TFT LCDs only consume energy when needed, and can maintain low power consumption when displaying static images or text.

5. Thin and lightweight: TFT LCDs are manufactured using thin-film technology have a thin structure and are lightweight. This makes them suitable for a variety of application scenarios, such as mobile devices, laptops, tablet PCs, and so on.

6. Can produce large-size screens: TFT LCDs can produce large-size screens, from small-size handheld devices to large TV screens. This makes the TFT LCD screen have a wide range of applications in the field of family entertainment and commercial display.


To summarize, TFT LCDs have the advantages of high image quality, good viewing angle, and contrast, fast response time, low power consumption, thin and lightweight, and the ability to produce large screen sizes, making them one of the most common and widely used display technologies today.


How to customize a 7-inch TV screen?

With the development of science and technology, more and more intelligent terminals appear in our lives, and the pressure of market competition in the intelligent terminal is also very huge. The opportunity is fleeting, so the product development and listing time is generally very urgent. For the intelligent terminal, the key components are the 7-inch TFT screen and motherboard, so how to quickly customize the 7-inch TFT screen appears to be critical.


1. Sort out the requirements

The development of any terminal product and the development of demand are key first steps. Therefore, before customizing a 7-inch TFT screen, terminal manufacturers should sort out the requirements and organize a detailed plan. A customized 7-inch TFT screen specifically includes 7-inch TFT screen size, 7-inch TFT screen resolution, 7-inch TFT screen brightness, 7-inch TFT screen interface, 7-inch TFT screen temperature range, and so on. Some industries have special requirements due to their industry characteristics, which must be emphasized and marked out.


I give you a warm reminder: You should know the market size and shape in advance, as well as the approximate parameters. There is a prejudgement, can not rely on their whims, and often find themselves designing the end product and can not find a suitable 7-inch TFT screen.


2. Drawing shapes in CAD drawings

To quickly customize the 7-inch TFT screen, terminal manufacturers must draw in advance shape CAD sketches, which can greatly save the early 7-inch TFT screen manufacturers' R & D engineers time to get the shape of the CAD sketches to the appropriate specifications of the size of the 7-inch TFT screen.


Drawing CAD drawings inside to include the shape size, AA area (that is, the display area), and size of the shell, so that according to the shell size design cover, these dimensions are complete drawings to CAD drawings, so that the preliminary communication will be faster and more efficient.


Quickly customize a 7-inch TFT screen to pay attention to the way and method; any customized product is a process. To save time and efficiently complete the customized 7-inch TFT screen, be prepared for everything in advance.


Which is better, the TFT screen or the IPS screen?

As I said earlier, IPS screens have up and down, and left and right viewing angles are very high, no matter which angle to look at the screen is very clear; a TFT screen can only guarantee that the angle of the three directions is good, one of the direction of the effect is not so ideal, it may be the lower angle of view, it may also be the left angle of view or the right angle of view. From the point of view of the display effect, IPS is better than TFT for some. Click here for TFT LCD Display.


1. Different references: TFT screen: thin-film field effect transistors, belonging to a kind of active-matrix liquid crystal display; IPS screen: is based on TFT technology, the essence of the TFT screen.


2. Different advantages. TFT screen: It can "actively" control each pixel on the screen, which can greatly improve the response time; IPS screen: It changes the arrangement of liquid crystal molecular particles, and adopts the horizontal conversion technology, which makes the response speed of the LCD screen faster and more stable. In dealing with the continuity of the dynamic picture, a major advantage of the horizontal conversion is to speed up the deflection of liquid crystal molecules, reflected in the IPS hard screen response speed advantage.


3. The structure is different. TFT screen: TFT type of liquid crystal display main components include: fluorescent tubes, a light guide plate, a polarizing plate, a filter plate, a glass substrate, directional film, liquid crystal materials, thin mode transistors, etc.; IPS screen: the two poles are on the same surface, unlike other liquid crystal mode electrode is in the upper and lower surfaces, three-dimensional arrangement. The technology optimizes the arrangement of liquid crystal molecules by adopting a horizontal arrangement. When encountering external pressure, the molecular structure sinks downward slightly, but the overall molecules are still horizontal.

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