Display substrate and display device

A technology for display substrates and display areas, applied in identification devices, organic semiconductor devices, photovoltaic power generation, etc., can solve problems such as differences in display effects, achieve the effect of solving stress concentration and ensuring display effects

Active Publication Date: 2019-04-09
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test found that the strain amount at the point with the largest deformation is about 2 times that at the point with the smallest de

Method used

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  • Display substrate and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a display substrate, which can effectively solve the problem of display differences caused by deformation of openings in the display area.

[0040] A display substrate, including a substrate, the substrate at least includes a display area, the substrate forms a plurality of islands separated by openings and connected by bridges in the display area, and the substrates in at least two different areas of the display area have different modulus of elasticity. By dividing the display area of ​​the substrate into different areas and adjusting the elastic modulus for different areas, the accumulated deformation of the central area of ​​the display area is reduced, and the deformation difference between the central area and the edge area of ​​the display area is eliminated.

[0041] When partitioning the display area, the substrate can be divided into different opening areas along a certain direction of pixel arrangement in the display area (for example...

Embodiment 2

[0045] Usually, due to the difference in the surrounding structure of the display area, the stretchable deformation is in two directions perpendicular to each other (for example image 3 , Figure 4 The illustrated transverse direction X and longitudinal direction Y) have different situations. Such as Figure 1A As shown, the substrate also includes two non-display areas 2 located on opposite sides of the display area 1 , the substrate is divided into a plurality of opening areas 10 in the display area 1 , and different opening areas 10 have different elastic moduli.

[0046] Figure 1AIn this method, different opening regions 10 are arranged in the same direction, and the substrate is alternately arranged with the first elastic modulus and the second elastic modulus in the plurality of opening regions 10, and the first elastic modulus is not equal to the second elastic modulus. That is to say, the two sides of the region with a smaller modulus of elasticity are regions with ...

Embodiment 3

[0061] On the basis of Embodiment 1, the display substrate in this embodiment also adopts pixel compensation on the basis of hole structure compensation. By setting different pitches between pixels, a pre-compensation is applied before stretching the substrate to reduce the pitch difference between pixels on the substrate after stretching, so as to solve the problem of display differences caused by different pixel pitches .

[0062] For different pixel compensations, if the opening widths in the E1 area and E2 area are different, the distance between adjacent islands is different before stretching, and the deformation of the opening is also different after the force is applied, driving the distance between pixels to tend to same. In practical applications, when performing pixel compensation for this situation, it is necessary to consider the deformation result of the combination of the elastic modulus of the opening area and the initial pixel spacing.

[0063] In one embodim...

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PUM

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Abstract

The invention belongs to the technical field of display, and particularly relates to a display substrate and a display device. The display substrate comprises a substrate, wherein the substrate at least comprises a display region, a plurality of islands are formed at the display region of the substrate, are partitioned by holes and are connected by bridges, and the substrate of at least two difference regions of the display region have different elasticity modulus. By the display substrate, the problem of stress concentration at a junction of different regional bridge holes of the display region can be effectively solved, so that the problem of the distance difference among pixels to cause different display effects caused by non-uniform stretching deformation is solved, and the purpose ofdisplay compensation is achieved; and moreover, the elasticity modulus from a non-display region to the display region is uniformly and gradually reduced by changing a structure of a transition regionbetween the display region and the non-display region, the problem of stress concentration of the display substrate at the junction between the display region and the non-display region is solved, and the display effect is further ensured.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display substrate and a display device. Background technique [0002] Along with the technical solution, research on stretchable displays has emerged. Stretchable display inevitably involves a display substrate (Substrate), which manufactures display elements in a stretchable substrate with openings, and provides overall deformation through the deformation of the openings. Stretchability shows that the main structures are islands and bridges, and the tensile properties are achieved through the islands and bridge structures. Specifically, the light-emitting device is prepared on the island, and the metal wiring is prepared on the bridge. In order to ensure display driving, a non-opening GOA (Gate On Array) area or circuit routing area is reserved in the edge area of ​​the display substrate. [0003] In the prior art, the size of the openings in all areas of the d...

Claims

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Application Information

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IPC IPC(8): H01L27/12G09F9/33
CPCH01L27/1218G09F9/33Y02E10/549H10K59/12H10K77/111H10K2102/311
Inventor 曹方旭王品凡
Owner BOE TECH GRP CO LTD
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