Thin film transistor array substrate and repair method
A technology of thin-film transistors and array substrates, which is applied in the field of liquid crystal display, can solve problems such as time and energy consumption, affect image quality, and cumbersome steps, and achieve the effects of small impact, high practicability, and simple and quick operation
Active Publication Date: 2016-02-24
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
This traditional repair method is cumbersome in operation, requiring at least four times of welding and five times of cutting (such as figure 1 As shown), it consumes time and energy, and because the pixel unit is completely invalid, it becomes a dark spot, which will affect the image quality of the picture
Method used
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Embodiment Construction
[0040] In order to further illustrate the purpose, technical scheme and technical effect of the present invention, the following refers to the large-size liquid crystal display panel thin film transistor array substrate and the 2G1D pixel unit structure arranged on it in the prior art (the pixel unit and two scanning lines and one data The equivalent circuit diagram of wire electrical connection) introduces in detail the working principle and implementation of the repair method provided by the present invention, as well as better technical effects compared with the prior art. It should be noted that although the present invention is described with respect to the 2G1D pixel unit structure, it should not be limited thereto. The structure of pixel units designed by different manufacturers is not the same, and there will be many deformations. For example, there is also a 1G2D pixel unit structure (the pixel unit is electrically connected to one scanning line and two data lines), so...
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A thin-film transistor array substrate and a repair method. The array substrate comprises a substrate. Multiple common-electrode wirings are disposed on the substrate. Multiple scanning lines and data lines are disposed on the substrate in a staggered manner to form multiple pixel regions. Multiple pixel units are disposed in the pixel regions. Each of the pixel units comprises a primary pixel electrode T1, a secondary pixel electrode T2, and a charge sharing unit T3 electrically connected to the primary pixel electrode T1 and the secondary pixel electrode T2. The charge sharing unit T3 comprises a charge capacitor Ccs2 used for generating a voltage difference between the primary pixel electrode T1 and the secondary pixel electrode T2. When the charge capacitor Ccs2 is a defective capacitor, a circuit for connecting an upper electrode or a lower electrode with a periphery is cut off. Different from the conventional repair means, the repair method has a simple and convenient repair process, and the repaired pixel units can normally work and only little influence is caused to the display function of the whole pixel unit though the large-visual-angle color cast cannot be effectively overcome.
Description
technical field [0001] The invention relates to liquid crystal display technology, in particular to a thin film transistor array substrate of a large-size liquid crystal display panel and a repair method. Background technique [0002] Thin film transistor liquid crystal display panel (TFTLD) has become the mainstream product in the current market due to its excellent performance. A TFT-LCD panel usually consists of a TFT array substrate, a color filter substrate and a liquid crystal layer. Wherein, a plurality of pixel units (Pixel) are arranged in an array on the thin film transistor array substrate, and each pixel unit includes at least one thin film transistor, and a pixel electrode (Pixel Electrode) corresponding to the thin film transistor. The thin film transistor is used as a switching element to start the operation of the pixel unit, and is connected to the scan line (ScanLine) and the data line (DataLine). Driven by the scan signal, the voltage of the data signal i...
Claims
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IPC IPC(8): G02F1/1362G02F1/1368G02F1/13H01L27/12
CPCG02F1/136259G02F1/136213H01L27/124H01L27/1255
Inventor 衣志光张骢泷
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD