Learn more about TFT LCD

TFT-LCD swiftly became the standard display thanks to the rapid development of color LCD flat panel displays in less than 10 years, which is inseparable from the benefits he possesses. TFT technology reached its maturity in the early 1990s. I combine the following with it to comprehend its key characteristics.

The use of good characteristics:

Applications requiring low voltage, low driving voltage, and a solidification of safety and dependability; flat, light, and thin words that save a significant amount of space and raw resources. Low power consumption, his work number is roughly one-tenth that of a CRT display, and reflective TFT-LCDs use even less power than that of a CRT, only about one percent.

TFT-LCD products also have a wide range of features, including lengthy product lifespans, a wide range of size and specification models, a size series, and a number of easy-to-use features.

The display range is a full-size display terminal that covers the application range of all displays from 1 inch to 40 inches as well as the projection of huge planes. Display quality can range from the most basic monochrome character graphics to models of video displays with high resolution, high color accuracy, high brightness, high contrast, and high responsiveness. Direct-view, projection, see-through, and reflecting display techniques are all available.

Excellent environmental qualities:

no radiation, no flicker, and no harm to the user's health. The introduction of TFT-LCD electronic books in particular will usher humanity into the paperless office and paperless printing era, bringing about a transformation in how people learn, spread, and archive civilisation.

Wide range of use; after temperature-enhanced processing, the TFT LCD's low temperature working temperature may reach -80 °C. It can be used routinely in the -20 °C to +50 °C temperature range. This means that a full-size video display terminal with good performance is available as a mobile terminal display, desktop terminal display, large-screen projection TV, or other type of terminal display.

The TFT-LCD industry's technology is mature, with a large-scale production yield rate of over 90%, and it has good features for large-scale industrial production. The manufacturing process is highly automated.

TFT LCD has a lot of potential for future development because it is simple to integrate and update and combines perfectly with large-scale semiconductor integrated circuit technology. Currently, TFT LCDs are made of amorphous, polycrystalline, and monocrystalline silicon. Glass substrate and plastic substrate will also be available in the future.

Sinocrystal currently provides small and medium size TFT-LCD screens through manufacturer direct sales, with interface options. TFT-LCD huge inventory, 0.96 inch to 10.1 inch. Welcome to consult.

Common Line Defects and Their Causes and Solutions in TFT LCD Displays

According to the different factors that contribute to the formation of line defects in TFT LCD liquid crystal display modules, as well as differences in their location and shape, these defects can be categorized as screen breakage class line defects, screen short circuit class line defects, short circuit between the terminals class line defects, drive abnormal class defects, etc. For more information on each of these defects, as well as their occurrence and causes, please refer to the following table.

As opposed to drive abnormal class line defects, which are a drive circuit issue, as well as a number of other types of line defects and display terminal process, these types of line defects can be adjusted through the drive circuit, replacement of COF/COG, and other methods to achieve line defect repair. Screen breakage and short circuit are typically caused by the screen itself in the production process of dust pollution and other factors.

The most frequent flaws are those in LCD lines. The main cause of broken wire class line faults and data line breakage is display design into the broken line repair design countermeasures, which can significantly raise the percentage of products that qualify.

The two design countermeasures for the repair approach are off-screen repair and on-screen repair.

1.Off-screen repair of damaged wires:

Through off-screen alignment, the data signal is simultaneously transmitted to the damaged line that cannot be displayed properly, realizing the display's normal operation.

2.On-screen repair design for damaged wires:

With pixel design, it is possible to achieve the data line disconnection of the upper and lower parts of the conductive by borrowing the path on the pixel. This can save off-screen repair design, which is frequently used when the amplifier OP, and lower product development costs. Different display modes, borrowing pathways, pixel architectures, and repair design techniques all have their own unique differences.