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Display substrate, preparation method of display substrate, display device, preparation method of display device and display unit

A technology for display substrates and display devices, applied in the fields of display devices, display devices and their preparations, display substrates and their preparations, can solve the problems of circuit connection area breakage, narrow structure size, damage, etc., and achieves easy removal and stress reduction. , the effect of easy bending process

Inactive Publication Date: 2019-02-19
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the narrow frame design of existing OLED products, the realization of the narrow frame needs to bend the circuit connection area of ​​the OLED display device to the back of the display area, so that the circuit connection parts on the flexible substrate (such as mobile phones, Pads and displays, etc.) The "chin" part of the product) has a narrow structural dimension
At the same time, as a protective film material, the back film arranged on the back of the OLED display device requires high adhesion. Therefore, in the above-mentioned bending process, the back film will generate relatively large tensile stress, which will directly lead to Broken or damaged circuit connection area

Method used

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  • Display substrate, preparation method of display substrate, display device, preparation method of display device and display unit
  • Display substrate, preparation method of display substrate, display device, preparation method of display device and display unit
  • Display substrate, preparation method of display substrate, display device, preparation method of display device and display unit

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Embodiment approach 2

[0102] refer to figure 2 , figure 2A layered view of another embodiment of a display substrate embodying principles of the present disclosure is representatively shown in . In this exemplary embodiment, the design of the display substrate proposed in the present disclosure is substantially the same as that of the above-mentioned first embodiment, and the main design differences will be described below.

[0103] Such as figure 2 As shown, in this embodiment, the cross section of the groove 230 opened on the lower surface of the flexible substrate 200 is roughly trapezoidal. Specifically, the upper bottom of the trapezoid corresponding to the section of the groove 230 (i.e. the shorter one of the two bases of the trapezoid) corresponds to the bottom of the groove 230, and the lower bottom of the trapezoid (i.e. the two bases of the trapezoid) The longer one) corresponds to the notch of the groove 230, and the two sides of the trapezoid correspond to the groove walls on bot...

Embodiment approach 3

[0107] refer to image 3 , image 3 A layered view of yet another embodiment of a display substrate capable of embodying principles of the present disclosure is representatively shown in . In this exemplary embodiment, the design of the display substrate proposed in the present disclosure is substantially the same as that of the above two embodiments, and the main design differences will be described below.

[0108] Such as image 3 As shown, in this embodiment, the cross-section of the grooves 230 opened on the lower surface of the flexible substrate 200 is substantially grid-shaped. Specifically, the groove 230 is jointly formed by a plurality of sub-grooves 230 arranged in parallel and spaced apart.

[0109] Further, as image 3 As mentioned above, in this embodiment, the cross-section of the sub-grooves 230 is roughly rectangular. Accordingly, after the grooves 230 are bent, the plurality of sub-grooves 230 form a zigzag structure arranged along the bending path (see ...

Embodiment approach 1

[0113] refer to Figure 4 , which representatively shows the layered diagram of the display device proposed by the present disclosure, and specifically shows based on figure 1 The layered diagram of the display device of the display substrate is shown. In this exemplary embodiment, the display device proposed in the present disclosure is described as being applied to a display device such as a mobile phone, a Pad, or a display. Those skilled in the art can easily understand that, in order to apply the related design of the present disclosure to other types of display devices or other fields, various modifications, additions, substitutions, deletions or other modifications are made to the following specific embodiments variations, which remain within the scope of the principles of the display device proposed in this disclosure.

[0114] Such as Figure 4 As shown, in the present embodiment, the display device proposed in the present disclosure mainly includes the display sub...

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Abstract

The invention provides a display substrate, a preparation method of the display substrate, a display device, a preparation method of the display device and a display unit. The preparation method of the display substrate includes: providing a flexible substrate, wherein a display area and a circuit connection area are arranged on an upper surface of the flexible substrate, and a part, correspondingto the circuit connection area, of the flexible substrate is provided with a bending portion and a connecting portion; forming a groove in a lower surface of the flexible substrate, wherein an orthographic projection, of the groove, on an upper surface of the flexible substrate corresponds to the position of an orthographic projection, of the bending portion, on the upper surface of the flexiblesubstrate; arranging a backplate, an OLED (organic light emitting diode) luminescent device and a packaging structure successively in the display area on the upper surface of the flexible substrate, and arranging a circuit connection layer in the circuit connection area on the upper surface of the flexible substrate. By downwardly bending and extending the bending portion of the flexible substrate, the connecting portion is enabled to locate on the lower surface side of the flexible substrate.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular to a display substrate and a manufacturing method thereof, a display device and a manufacturing method thereof, and a display device. Background technique [0002] With the development of the display industry, OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode), as a new type of light-emitting device, has been widely researched and applied in the industry, especially in current display devices such as full screens and narrow borders. In the mainstream design, it has broad development prospects. [0003] In the narrow frame design of existing OLED products, the realization of the narrow frame needs to bend the circuit connection area of ​​the OLED display device to the back of the display area, so that the circuit connection parts on the flexible substrate (such as mobile phones, Pads and displays, etc.) The "chin" part of the product) has a narrower stru...

Claims

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/00H10K71/00Y02E10/549Y02P70/50H10K77/111H10K50/80H10K2102/311
Inventor 谷朋浩谢春燕张嵩周伟峰钱玲芝
Owner BOE TECH GRP CO LTD
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