TFT array substrate, display panel and display device

An array substrate and display panel technology, which is applied in the fields of display panels, display devices, and TFT array substrates, can solve the problem of not further improving the aperture ratio, and achieve the effect of saving costs and improving the aperture ratio.

Active Publication Date: 2014-07-23
BEIHAI HKC OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent application only provides a technical solution to prevent the light from the top of the TFT from irradiating the semiconductor layer of the TFT, and does not further increase the aperture ratio.

Method used

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  • TFT array substrate, display panel and display device
  • TFT array substrate, display panel and display device
  • TFT array substrate, display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The schematic diagram of the top view structure of the TFT array substrate provided by Embodiment 1 of the present invention is as follows: image 3 As shown, the section view along A-A' is shown as Figure 4 shown.

[0035] combine image 3 with Figure 4 It can be known that the TFT array substrate 3 includes a first substrate 301 and a TFT array structure layer located on the first substrate 301 . The TFT array structure layer includes a plurality of scanning lines 302; a plurality of data lines 303 insulated and intersecting with the plurality of scanning lines 302; A pixel electrode 304; a TFT 305 disposed at the intersection of the scanning line 302 and the data line 303 as a pixel switch; a high-resistance light-shielding layer 306 covering the scanning line 302 and the TFT 305. Wherein, the gate 309 of the TFT 305 is electrically connected to the corresponding scanning line 302, the source / drain 312 of the TFT 305 is electrically connected to the correspondi...

Embodiment 2

[0048] The schematic structural diagram of the display panel provided by Embodiment 2 of the present invention is as follows Image 6 shown. The display panel includes the TFT array substrate 3 described in the first embodiment and a color filter substrate 4 disposed opposite to the TFT array substrate 3 . The TFT array structure layer of the TFT array substrate 3 is located on the side of the first substrate facing the color filter substrate 4 .

[0049] The color filter substrate 4 includes a second substrate 401 ; an array of color resist units 402 and a black matrix 403 located on the side of the second substrate 401 facing the TFT array substrate 3 . The color-resist unit 402 corresponds to the pixel area of ​​the TFT array substrate; a black matrix 403 is provided between two adjacent columns of the color-resist unit and around the edge of the second substrate 401 to shield the data line 303 . However, since the scanning lines 302 have been blocked by the light-shieldi...

Embodiment 3

[0053] The schematic structural diagram of the display panel provided by Embodiment 3 of the present invention is as follows Figure 7 shown. The display panel includes the TFT array substrate 3 described in the first embodiment and a color filter substrate 4 disposed opposite to the TFT array substrate 3 . The TFT array structure layer of the TFT array substrate 3 is located on the side of the first substrate facing the color filter substrate 4 .

[0054] The color filter substrate 4 includes a second substrate 401 ; an array of color resist units 402 located on the side of the second substrate 401 facing the TFT array substrate 3 , and an anti-reflection film 404 located on the side of the second substrate 401 facing away from the TFT array substrate 3 . The color-resist unit 402 corresponds to the pixel area of ​​the TFT array substrate; no black matrix is ​​arranged between adjacent color-resist units. Since the data line 303 is not blocked, light reflection will occur; ...

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PUM

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Abstract

The invention discloses a TFT array substrate, a display panel and a display device. The TFT array substrate comprises a first substrate, a gate electrode and scanning lines located on the first substrate, a gate electrode insulating layer located on the gate electrode and the scanning lines, an active layer located on the gate electrode insulating layer and above the gate electrode, an etching stopping layer covering the channel region of the active layer, and a light shielding layer covering the scanning lines, wherein the light shielding layer and the etching stopping layer are located at the same layer and both adopt high-resistance light-shielding material. As the etching stopping layer adopts the high-resistance light-shielding material, light from the top part of the TFT can be prevented from shining on the channel region of a semiconductor layer of the TFT; as the light shielding layer located at the same layer as the etching stopping layer is adopted for covering the scanning lines, a black matrix, corresponding to the scanning lines, on a color film substrate can be removed, and the opening rate can be improved; and as the etching stopping layer and the light shielding layer for shielding the scanning lines are located at the same layer and adopt the same material, no new technology steps are added, and the cost is saved.

Description

technical field [0001] The invention relates to the field of flat panel display, in particular to a TFT array substrate, a display panel and a display device including the TFT array substrate. Background technique [0002] A flat panel display is one of the more commonly used displays at present, such as a liquid crystal display panel, an OLED (Organic Light Emitting Diode) display panel, a plasma display panel, and electronic paper. like figure 1 As shown, most commonly used display panels include a TFT array substrate 1 and a color filter substrate 2 that are oppositely arranged. [0003] The TFT array substrate 1 includes a first substrate 101; a plurality of scanning lines 102 located inside the first substrate 101; a plurality of data lines 103 insulated and intersecting with the plurality of scanning lines 102; The pixel electrode 104 in the pixel area surrounded by two data lines; the TFT 105 arranged at the intersection of the scan line 102 and the data line 103 as...

Claims

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Application Information

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IPC IPC(8): H01L27/12G02F1/136G02F1/1335
Inventor 臧浩春
Owner BEIHAI HKC OPTOELECTRONICS TECH CO LTD
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