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TFT array substrate and driving method thereof

A technology of an array substrate and a driving method, which is applied in the field of liquid crystal display, can solve the problems affecting the display effect, insufficient charging of pixel units, insufficient aperture ratio of pixel units, etc., so as to save production cycle and cost, avoid insufficient charging, and improve the aperture ratio. Effect

Active Publication Date: 2021-09-17
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the size of the pixel is designed to be relatively small, the size of the TFT needs to be designed to be smaller accordingly. If the W / L (ie, width / length) value of the TFT is designed to be relatively large (ie, the size of the TFT is large), then The aperture ratio of the pixel unit is insufficient; if the W / L value of the TFT is designed to be relatively small, it will cause insufficient charging of the pixel unit and affect the display effect

Method used

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  • TFT array substrate and driving method thereof
  • TFT array substrate and driving method thereof
  • TFT array substrate and driving method thereof

Examples

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no. 1 example

[0035] Such as Figure 1 to Figure 3 As shown, the TFT array substrate provided by the first embodiment of the present invention includes a plurality of scanning lines 1, a plurality of data lines 2, and a plurality of pixel units P formed by insulating intersections of a plurality of scanning lines 1 and a plurality of data lines 2 , a plurality of pixel units P are all located in the AA (Active Area, active area or active display area) area 10 . One side of the TFT array substrate is provided with a source driver IC6 (source IC), and a plurality of data lines 2 are connected to the source driver IC6. Two pixel electrodes 3 are arranged in each pixel unit P, and the two pixel electrodes 3 are arranged along the extending direction of the scanning line 1 . Each pixel electrode 3 is connected to its adjacent scanning line 1 and data line 2 through two thin film transistors 4, the two thin film transistors 4 are connected to the same scanning line 1 and the same data line 2, an...

no. 2 example

[0054] Such as Figure 4 and Figure 5 As shown, the TFT array substrate provided by the second embodiment of the present invention includes a plurality of scanning lines 1, a plurality of data lines 2 and a plurality of charging lines 5, and each charging line 5 is located between two adjacent data lines 2 A plurality of scanning lines 1 , a plurality of data lines 2 and a plurality of charging lines 5 are insulated and intersect to define a plurality of pixel units P, and each pixel unit P is provided with a pixel electrode 3 . A plurality of pixel units P are located in the region AA 10 , and a plurality of data lines 2 are connected to the source driver IC 6 .

[0055] Further, as Figure 4 As shown, along the extension direction of the scanning line 1, two pixel units P between two adjacent data lines 2 are used as a group, and two data lines are arranged between each adjacent two groups of pixel units P 2. Specifically, the two adjacent data lines 2 may be metal line...

no. 3 example

[0067] Such as Figure 6 and Figure 7 As shown, the TFT array substrate provided by the third embodiment of the present invention includes a plurality of scanning lines 1, a plurality of data lines 2 and a plurality of charging lines 5, and a charging line 5 is provided on the left and right sides of each data line 2 A plurality of scanning lines 1 , a plurality of data lines 2 and a plurality of charging lines 5 are insulated and intersect to define a plurality of pixel units P, and each pixel unit P is provided with a pixel electrode 3 . A plurality of pixel units P are located in the region AA 10 , and a plurality of data lines 2 are connected to the source driver IC 6 .

[0068] Further, as Figure 6As shown, along the extension direction of the scanning line 1, two pixel units P between two adjacent charging lines 5 are used as a group, and two charging lines are arranged between every two adjacent groups of pixel units P 5. Specifically, the two adjacent charging wi...

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Abstract

The invention provides a TFT array substrate and a driving method thereof, wherein the TFT array substrate comprises a plurality of scanning lines, a plurality of data lines and a plurality of pixel units defined by the plurality of scanning lines and the plurality of data lines in an insulated and crossed manner, and two pixel electrodes are arranged in each pixel unit; the two pixel electrodes are arranged in the extending direction of the scanning lines, each pixel electrode is connected with the scanning line and the data line adjacent to the pixel electrode through two thin film transistors, and the two thin film transistors are connected with the same scanning line and the same data line; and the two thin film transistors can charge the corresponding pixel electrodes at the same time when being opened. The pixel electrodes are charged through the two thin film transistors at the same time, insufficient charging of the pixel electrodes is avoided, and meanwhile the size of the thin film transistors can be properly reduced so as to improve the aperture opening ratio.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a TFT array substrate and a driving method thereof. Background technique [0002] With the development of display technology, liquid crystal display panels (Liquid Crystal Display, LCD) are more and more popular due to their advantages of lightness and low radiation. The liquid crystal display panel includes an opposing color filter substrate (color filter, CF) and an array substrate (TFT array substrate) and a liquid crystal layer (LC layer) sandwiched between them. Each pixel unit is provided with a pixel electrode, and each pixel electrode is connected to a corresponding scanning line and a data line through a TFT (Thin Film Transistor). [0003] As people's requirements for the resolution of the liquid crystal display panel increase, the number of pixels (PPI, PixelsPerInch) is generally increased by reducing the size of the pixel, thereby increasing the resol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/1343H01L27/12
CPCG02F1/136286G02F1/134345H01L27/1214H01L27/124
Inventor 程晓婷
Owner KUSN INFOVISION OPTOELECTRONICS