Flexible substrate and preparation method thereof, preparation method for display panel, and display device

A flexible substrate and flexible display technology, applied in the direction of climate sustainability, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems of large elastic modulus, fracture, stretching or deformation of flexible substrates, etc.

Active Publication Date: 2018-09-14
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the thick flexible substrate and the large modulus of elasticity, the general design is more difficult to stretch or deform, and even cause breakage

Method used

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  • Flexible substrate and preparation method thereof, preparation method for display panel, and display device
  • Flexible substrate and preparation method thereof, preparation method for display panel, and display device
  • Flexible substrate and preparation method thereof, preparation method for display panel, and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment aims at the problem that the quality of the flexible substrate affects the performance of the control element TFT and the light-emitting device OLED, and provides a flexible substrate that provides sufficient ductility while ensuring the supporting performance.

[0053] The flexible substrate is used to carry a flexible display device. The flexible display device is provided with a display area. The display area is divided into a plurality of pixel areas, and there are spacer areas between adjacent pixel areas. The flexible substrate includes a supporting layer, such as figure 1 and figure 2As shown, a surface layer of one side of the support layer 2 is provided with a plurality of micro-grooves 20 in a region corresponding to the space region 11 between adjacent pixel regions 10. When the flexible substrate is used to form a display panel, a micro-groove 20 is provided on the side of the support layer 2 where the flexible display device is provided, th...

Embodiment 2

[0078] This embodiment provides a flexible substrate that provides sufficient ductility while ensuring support performance.

[0079] The flexible display device also includes a non-display area located at the periphery of the display area, and a binding area is provided in the non-display area. The difference from Embodiment 1 is that the flexible substrate is in an area corresponding to the non-display area except the binding area. A plurality of microgrooves 20 are provided.

[0080] Wherein, in the area corresponding to the non-display area except the binding area, a plurality of micro-grooves 20 are evenly distributed; or, the density of the plurality of micro-grooves 20 near the edge is greater than that in the middle, or the density of the plurality of micro-grooves 20 is greater than that in the middle. The groove 20 is larger in size near the edges than in the middle. Under the same stress conditions, the thinner area has better ductility, and the surface area of ​​th...

Embodiment 3

[0084] On the basis of Embodiment 1 and Embodiment 2, this embodiment provides a method for preparing a display panel, making full use of the above-mentioned flexible substrate to realize the preparation of a flexible display device.

[0085] The above-mentioned flexible substrate becomes a part of the flexible display panel, such as Figure 5A-Figure 5E As shown, the preparation method of the display panel includes:

[0086] First, in Figure 5A Among them, the support film layer 21 of the above-mentioned flexible substrate is arranged above the substrate pad 1. That is, the support film layer 21 is set on the substrate liner 1, and the surface layer of the support film layer 21 is patterned using laser (laser) etching form Figure 5B The micro-grooves 20 are shown, and the micro-grooves 20 are all over the support layer 2 in the area corresponding to the spacer 11.

[0087] Next, a control element is formed on the side of the supporting layer provided with the micro-gro...

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Abstract

The invention belongs to the technical field of display, and specifically relates to a flexible substrate and a preparation method thereof, a preparation method for a display panel, and a display device. The flexible substrate is used for bearing a flexible display device, and the flexible display device is provided with a display region. The interior of the display region is divided into a plurality of pixel regions, and spacer regions are disposed between the adjacent pixel regions. The flexible substrate comprises a support layer, and the regions, corresponding to the spacer regions, of oneside surface layer of the support layer is provided with a plurality of miniature grooves. Through the patterned miniature groove design of the support layer, the support layer and the wires above the support layer are enabled to be in an uneven structure, and a region corresponding to a control element is not provided with an uneven structure, wherein a part below is processed into a harder structure. The flexible substrate is suitable for the combining of a flexible light-emitting device and an expanding layer, so as to form a stretchable flexible device. Therefore, the flexible substrate is especially suitable for the supporting of the flexible light-emitting device.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a flexible substrate and a preparation method thereof, a preparation method of a display panel, and a display device. Background technique [0002] Along with the development of science and technology, the flat panel display device has replaced the bulky CRT display device and goes deep into people's daily life day by day. Currently, commonly used flat panel display devices include LCD (Liquid Crystal Display: liquid crystal display device) and OLED (Organic Light-Emitting Diode: organic light-emitting diode) display device. Compared with LCD devices, OLED displays have the advantages of self-illumination and flexibility. [0003] In recent years, flexible display (Flexible Display) technology has developed very rapidly, and various flexible display development plans emerge in an endless stream, involving multiple fields such as display and wearable. Flexible displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/00H01L51/56
CPCH10K71/00H10K77/111Y02E10/549Y02P70/50H10K59/12H10K50/80H10K71/80H10K59/1201H10K2102/311H01L27/1262H01L27/1218
Inventor 谢明哲杨静郭远征
Owner BOE TECH GRP CO LTD
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