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display device

A technology for a display device and a display area, which is applied to identification devices, instruments, calculations, etc., and can solve problems such as uneven display of touch display devices, inability to form support pads, and reduction of driving voltage

Active Publication Date: 2021-03-23
AU OPTRONICS KUNSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A flat layer (PL) is usually formed on the active element (TFT) array substrate of the touch display device. When the third metal layer (M3) is used to realize the transmission of the touch signal and achieve the effect of reducing the driving voltage, a large The area where the third metal layer is formed usually adopts the method of hollowing out the flat layer, so that no support pad (Bump) can be formed in the corresponding area
For the existing process, the thickness of the support pad is about 5500 angstroms, and the thickness of the third metal layer is about 3700 angstroms. The height difference of about 1800 angstroms, in turn, leads to the problem of uneven display of the touch display device

Method used

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Embodiment Construction

[0044] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0045] Figure 1A is a schematic structural diagram of a display device according to an embodiment of the present invention, Figure 1B yes Figure 1A Sectional view along section line A-A', Figure 1C yes Figure 1A A schematic cross-sectional view of the middle area Q1, Figure 1D yes Figure 1A Schematic cross-sectional view of middle area Q2. Such as Figure 1A As shown, the display device 100 includes a first substrate 101 and a second substrate 102 , and the first substrate 101 and the second substrate 102 are disposed opposite to each other. In this embodiment, the first substrate 101 has an adjacent display area AA and a peripheral area BA. A plurality of pixel units (not shown in the figure) are arranged in the display area AA. The plurality of pixel units are arranged in an array along the Multiple columns are arr...

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Abstract

The present invention provides a display device, comprising a first substrate having a peripheral area and a display area adjacently arranged, and the display area is provided with a plurality of pixel units; a second metal layer electrically connected to the plurality of pixel units; a first A flat layer, including a plurality of supporting pad groups and a plurality of opening areas, the plurality of opening areas are respectively formed between the adjacent supporting pad groups; a third metal layer, the position corresponds to the The plurality of opening areas; a second substrate, set opposite to the first substrate; a light-shielding layer, a first color-resist layer, and a second flat layer, set on the second substrate, a second color-resist In the display area, the second color-resist layer is adjacent to the first color-resist layer, and in the peripheral area, the second color-resist layer is adjacent to the first color-resist layer stacked, and the position of the second color-resist layer corresponds to the plurality of opening regions of the first planar layer.

Description

technical field [0001] The present invention relates to a display device, and in particular to a display device capable of improving display effect. Background technique [0002] With the development of technology, touch display devices are widely used in many electronic products, such as mobile phones, tablet computers, watches and so on. [0003] Existing touch display devices are usually manufactured using low-temperature polysilicon technology, and pixel units and control circuits are electrically connected through wiring (fan out). A flat layer (PL) is usually formed on the active element (TFT) array substrate of the touch display device. When the third metal layer (M3) is used to realize the transmission of the touch signal and achieve the effect of reducing the driving voltage, a large The area where the third metal layer is formed is usually hollowed out in a flat layer, so that no support pad (Bump) can be formed in the corresponding area. For the existing process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/30G06F3/041
CPCG09F9/30G06F3/0412H01L27/1218H01L27/124H01L27/156
Inventor 翟邦和郑宏哲周文杰
Owner AU OPTRONICS KUNSHAN CO LTD