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Stretchable display back plate and stretchable display device

A technology for display backplane and display area, which is applied in identification devices, instruments, electrical digital data processing and other directions, and can solve problems such as failure and fracture of metal connecting line display devices.

Active Publication Date: 2019-11-12
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the non-display area such as the routing area (PAD) does not adopt a hollow structure, it is easy to break between the routing area and the display area when the stretching rate reaches 4% during the stretching process. Many of the metal connecting wires are broken which can cause the display device to fail

Method used

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  • Stretchable display back plate and stretchable display device
  • Stretchable display back plate and stretchable display device
  • Stretchable display back plate and stretchable display device

Examples

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Embodiment Construction

[0057] The following describes the embodiments of the present invention in detail, and those skilled in the art will understand that the following embodiments are intended to explain the present invention, and should not be regarded as limiting the present invention. Unless otherwise specified, those skilled in the art can carry out according to commonly used techniques or conditions in this field or according to the product specification if no specific technique or condition is explicitly described in the following examples.

[0058] In one aspect of the invention, the invention provides a stretchable display backplane.

[0059] The inventor found in the research process that the display area AA of the stretched display adopts the connection mode of islands (i.e. display units) and bridges (i.e. connection units), while the non-display areas such as the wiring area PAD do not adopt the design of the hollow structure , so, refer to figure 1 , in the process of stretching the ...

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Abstract

The invention provides a stretchable display back plate and a stretchable display device. The stretchable display back plate includes a wiring area and a display area defined along a first direction on a substrate; the display area includes a plurality of display units distributed in an array and a plurality of connection units, and a connection unit is arranged between any two adjacent display units; multiple functional layers are sequentially stacked in the display area; multiple hollow structures penetrate the multiple functional layers and the substrate, and the hollow structures are arranged in the center of four field-shaped display units, and each hollow structure has a first extension part having a first length along the second direction; the first length in the first transition area of the display area close to the wiring area is no greater than the first length in the center area of the display area. Thus, the extension length of the hollow structure in the first transition area in the direction perpendicular to the tensile direction is no greater than the center area, the tensile strength of the first transition area can be increased, thereby reducing the risk of tensile fracture in the first transition area.

Description

technical field [0001] The present invention relates to the technical field of stretchable display, in particular, the present invention relates to a stretchable display backplane and a stretchable display device. Background technique [0002] Stretch display, as a new type of display device, showed the world its high stretch rate (can be stretched by 12mm) and high-resolution display effect to the world in 2017. In fact, the stretch display design adopts the connection method of islands (display units) and bridges (connection units), and forms a hollow structure in the display area to make it stretchable. However, since the non-display area such as the routing area (PAD) does not adopt a hollow structure, it is easy to break between the routing area and the display area when the stretching rate reaches 4% during the stretching process. Many of the metal connecting wires in the display are broken, which will cause the display device to fail. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32G09F9/30
CPCG09F9/301H10K59/12G06F1/1652Y02E10/549H10K77/111H10K59/122H10K59/131H10K59/1201
Inventor 隋凯薛金祥孙中元王小芬
Owner BOE TECH GRP CO LTD
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