Flexible display panel, preparation method and display device thereof

A flexible display and panel technology, applied in the direction of identification devices, instruments, organic semiconductor devices, etc., can solve problems that affect the normal display of flexible display products, poor signal transmission, breakage, etc., to achieve narrow borders or even full screen without borders, and realize the design effect, the effect of avoiding breakage

Active Publication Date: 2018-06-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As the degree of bending gradually increases, the part of the metal lead wire in the bending area is subject to the vertical stress perpendicular to the bending area, which is likely to cause fracture, which will cause poor signal transmission and affect the normal display of flexible display products.

Method used

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

Examples

Experimental program
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Embodiment 1

[0043] Such as figure 1 As shown, Embodiment 1 of the present invention provides a flexible display panel 01, the flexible display panel 01 includes: a flexible base substrate 10; the flexible base substrate 10 includes: a first surface 10a; the first surface 10a is divided into curved Bending area (Bending area, figure 1 and the following drawings are marked as BA); if figure 2 As shown, the first surface 10a has a plurality of protrusions 10b in the bending area; the signal lead-out line 20 is located above the first surface 10a and passes through the bending area.

[0044] It should be noted that the above figure 2 It only shows the situation that the signal lead-out line 20 is located above the first surface 10a of the flexible substrate 10, and the signal lead-out line 20 is in direct contact with the first surface 10a in the bending area, which is not described in Embodiment 1 of the present invention. It is limited, as long as the signal lead-out line 20 is located...

Embodiment 2

[0064] On the basis of the above, Embodiment 2 of the present invention further provides a method for preparing the above-mentioned flexible display panel, the method comprising the following steps:

[0065] Step 1, providing a flexible substrate, the flexible substrate includes: a first surface; the first surface is divided into a bending area;

[0066] Step 2, patterning the part of the first surface located in the bending area to form a plurality of protrusions in the bending area;

[0067] Step 3, forming a metal lead-out line located above the first surface and passing through the bending area.

[0068] Here, the step of patterning the part of the first surface of the flexible substrate located in the bending area to form a plurality of protrusions in the bending area can be exemplified by using a mask with a certain pattern, The part of the first surface located in the bending area is etched, and by etching away a part of the area, the remaining part of the first surfac...

Embodiment 3

[0074] The following solution provided by Embodiment 3 aims to completely remove the insulating layer between the metal lead-out wire and the flexible substrate in the bending area, so that the signal lead-out wire 20 is directly in contact with the protrusion on the first surface in the bending area. Contact each other to form a structure one after another. The specific structure is as follows:

[0075] Such as Figure 5 As shown, the signal lead-out line 20 includes: a second surface 20a away from the flexible substrate 10; wherein, in the bending area BA, the second surface 20a covers the plurality of protrusions 10b and is correspondingly uneven (such as Figure 5 magnified part of the dotted box).

[0076] Here, along the vertical direction of the flexible substrate board surface, the shape of the protrusion 10b is not limited to the above-mentioned Figure 5The triangle shown in , that is, the first surface of the flexible substrate 10 is in a zigzag shape in the bend...

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Abstract

The invention provides a flexible display panel, a preparation method and display device thereof, and relates to the technical field of flexible display. The strain stressed in a vertical direction ofa signal outgoing line on the part located in a bending area can be reduced when the flexible display panel is bent, it is avoided that the signal outgoing line ruptures when bending, and the yield after products bend is improved. The flexible display panel comprises a flexible substratum substrate; the flexible substratum substrate comprises a first surface; the first surface is divided into a bent area; multiple bulges are arranged in the bent area on the first surface; and the signal outgoing line is located above the first surface and runs through the bent area. The preparation method isused for preparing the flexible display panel and the display device including the flexible display panel.

Description

technical field [0001] The invention relates to the field of flexible display technology, in particular to a flexible display panel, a preparation method thereof, and a display device. Background technique [0002] Narrow bezel or even bezel-less display device is the mainstream development trend of display technology at present. For flexible display products, since the flexible display products are made on a bendable flexible carrier, the narrow border of the binding area can be realized by bending the side of the flexible display product bound with the control chip to the rear side of the display surface design. [0003] When the binding area is bent toward the rear side of the display surface, a bending area appears between the binding area and the display area. Since multiple metal lead wires for transmitting signals are arranged between the binding area and the display area, each lead wire must pass through the bending area. [0004] As the degree of bending graduall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/12H01L27/32
CPCH01L27/1218H01L27/1244H10K59/131G06F1/1652G06F1/1626G06F1/1637H10K77/111H10K2102/311G06F1/181G06F1/189G09F9/301H05K1/028
Inventor 黄鹏詹志锋郑海金福实
Owner BOE TECH GRP CO LTD
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