amoled display device

A technology of display device and opposing substrate, which is applied to electrical components, electric solid-state devices, circuits, etc., can solve the problems such as the reduction of the aperture ratio of the display device, and achieve the effect of reducing cathode resistance and reducing IRdrop.

Active Publication Date: 2016-06-08
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, laying several cathode auxiliary lines on the edge of the pixel area (display area) will reduce the aperture ratio of the entire display device

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The AMOLED display device of this embodiment is as Figure 2a As shown, it includes: an array substrate 210 and a substrate opposite to the array substrate 210 . The opposite substrate can be a color filter substrate 240, and the color filter substrate 240 includes: a base substrate 244, a color filter (R, G, B three-color filter) located on the base substrate 244, and a color filter located on the base substrate 244. between the black matrix 243 . The black matrix 243 usually has a mesh structure and is formed in the non-pixel area. The color filter and the black matrix 243 are also covered with a protection layer 242 for protecting the color filter. The light-transmitting conductive structure is a transparent electrode 241 (usually made of Indium Tin Oxide, referred to as ITO) located on the surface of the color filter substrate 240 facing the array substrate 210, that is, the transparent electrode is located on the surface of the protective layer 242 facing the arr...

Embodiment 2

[0029] The AMOLED display device of this embodiment is as Figure 2b As shown, it includes: an array substrate 210 and a substrate opposite to the array substrate 210 . The opposite substrate can be a color filter substrate 240, and the color filter substrate 240 includes: a base substrate 244, a color filter (R, G, B three-color filter) located on the base substrate 244, and a color filter located on the base substrate 244. between the black matrix 243 . The color filter and the black matrix 243 are also covered with a protection layer 242 for protecting the color filter. In this embodiment, the black matrix 243 is made of conductive material (such as metal) and has a mesh structure, so the black matrix 243 can be directly used as a light-transmitting conductive structure connected in parallel with the cathode (that is, the transparent electrode in Embodiment 1 is not required).

[0030] In order to form a parallel structure between the black matrix 243 and the cathode (not...

Embodiment 3

[0033] The AMOLED display device of this embodiment is as Figure 2cAs shown, it includes: an array substrate 210 and a substrate opposite to the array substrate 210 . The opposite substrate can be a color filter substrate 240, and the color filter substrate 240 includes: a base substrate 244, a color filter (R, G, B three-color filter) located on the base substrate 244, and a color filter located on the base substrate 244. between the black matrix 243 . The color filter and the black matrix 243 are also covered with a protection layer 242 for protecting the color filter. In this embodiment, the black matrix 243 is a conductive material (such as metal) and has a mesh structure. It also includes a transparent electrode 241 (usually made of Indium Tin Oxide, referred to as ITO) located on the surface of the color filter substrate 240 facing the array substrate 210 , that is, the transparent electrode is located on the surface of the protective layer 242 facing the array substr...

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PUM

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Abstract

The invention relates to the technical field of display, and discloses an AMOLED display device, which comprises an array substrate and an opposite substrate of the array substrate, wherein a cathode on the array substrate is transparent; the opposite substrate comprises at least one light-transmitting conducting structure; the cathode and the light-transmitting conducting structure are connected through a bonding agent containing conducting particles. In the AMOLED display device, the light-transmitting conducting structure is connected in parallel with the cathode, and the cathode resistance is reduced, thereby reducing the IR drop; moreover, a shading structure (such as a cathode auxiliary line in the prior art) is not formed on the periphery of a pixel area, thereby preventing the aperture opening ratio from being influenced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an AMOLED display device. Background technique [0002] For a top-emitting AMOLED display device, the cathode is formed by a transparent electrode (such as: ITO), and it is a block electrode covering the array substrate as a whole, so the resistance of the cathode is very high. High cathode resistance will increase IRdrop, and excessive IRdrop will affect the uniformity of the picture. In order to reduce IRdrop, the existing scheme uses cathode auxiliary lines to reduce IRdrop, such as figure 1 As shown, in the non-pixel area on the array substrate, several cathode auxiliary lines located on different layers from the cathode are formed, usually at the same time as the anode, as shown in figure 1 The middle cathode auxiliary line 120 and the anode 110 are made of the same material and formed at the same time, and both are located at the same layer. The cathode auxiliary line 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52
Inventor 永山和由
Owner BOE TECH GRP CO LTD
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