OLED display panel and manufacturing method thereof

A display panel and display area technology, applied in semiconductor/solid-state device manufacturing, instruments, electrical components, etc., can solve problems such as broken lines, unfavorable wiring, and poor rigidity

Active Publication Date: 2020-06-26
广州华速信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For an OLED display panel, when it is bent from a flat state to a folded state, the flexible substrate at the bend is less rigid and has a greater degree of bending, which will cause the line in this area to break, which is not conducive to wiring

Method used

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  • OLED display panel and manufacturing method thereof
  • OLED display panel and manufacturing method thereof
  • OLED display panel and manufacturing method thereof

Examples

Experimental program
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Effect test

no. 1 example

[0039] figure 1 is a cross-sectional view of an OLED display panel according to the present invention, figure 2 Yes figure 1 Sectional view of the bent state. like figure 1 , 2 As shown, the OLED display panel includes a display area, a bending area and a driving area arranged in sequence. The display area includes a flexible substrate 1 ; a display device 2 sequentially formed on the flexible substrate 1 ; and a sealing layer 4 sealing the display device 2 . The display device 2 may be an organic light-emitting diode (Organic Light-Emitting Diode, OLED) or a quantum dot light-emitting diode (Quantum Dot Light-Emitting Diode, QLED), etc., which is not limited in the present invention.

[0040] In the bending region, the flexible substrate 1 has a first spacer 5 and a second spacer 6 spaced apart on its first surface, and a third spacer 11 and a second spacer 6 spaced apart on its second surface. Four spacers 12 . The spacer is made of polyethylene, polystyrene, polymet...

no. 2 example

[0046] image 3 is a cross-sectional view of an OLED display panel according to the present invention, Figure 4 yes image 3 Sectional view of the bent state. Such as image 3 , 4 As shown, its structure is basically similar to that of the first embodiment, the only difference is that the first organic layer 10 is formed on the second surface between the third spacer 11 and the second spacer 12, and the second organic layer 9 is in direct contact with the first surface at the recessed portion.

[0047] In this embodiment, the bending strength of the first organic layer is also greater than that of the second organic layer, and its material is also the same as that of the first embodiment.

[0048] And, when the driving region is bent below the second surface, the side walls of the third spacer 11 and the fourth spacer 12 abut against each other, and the third spacer 11 and the fourth spacer 12 abut against each other. The top surface of one of the fourth spacers 12 rest...

no. 3 example

[0050] Figure 5 is a cross-sectional view of an OLED display panel according to the present invention, Image 6 yes Figure 5 Sectional view of the bent state. Such as Figure 5 , 6 As shown, its structure is basically similar to that of the first embodiment, the only difference is that the first spacer 5 and the third spacer 11 are combined into one through the through hole 16 in the flexible substrate 1 to form a spacer 14, and the second spacer 5 The second spacer 6 and the fourth spacer 12 are combined into one through the bump 17 to form the spacer 15 , so that the spacer can be prevented from being peeled off from the flexible substrate 1 .

[0051] In this embodiment, the bending strength of the first organic layer is also greater than that of the second organic layer, and its material is also the same as that of the first embodiment. And the arrangement of the first organic layer 10 can also be arranged on the second surface similarly to the second embodiment (no...

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Abstract

The present invention provides an OLED display panel and a manufacturing method thereof provided by the invention, a first organic matter is relatively high in bending strength, relatively high in rigidity and capable of supporting the flexible substrate, and a second organic layer is relatively low in bending strength, relatively good in flexibility and convenient to bend and stretch; and a firstorganic layer can be arranged on the lower surface of the flexible substrate and can have opposite stress with the second organic layer, so that internal stress balance is guaranteed, and dislocationis prevented; the plurality of spacers not only achieve the purpose of glue injection of the retaining wall, but also achieve the purpose of supporting when the flexible substrate is bent.

Description

technical field [0001] The invention relates to the technical field of display panels, in particular to an OLED display panel and a manufacturing method thereof. Background technique [0002] The OLED display panel is a variable and bendable display device, which has the advantages of being convenient to carry and being bendable and curlable, so it is a research and development hotspot in the current display technology. [0003] For an OLED display panel, when it is bent from a flat state to a folded state, the flexible substrate at the bend is less rigid and has a greater degree of bending, which will cause the line in this area to break, which is not conducive to wiring. And when bending, it is necessary to make the film layer at the bending place not easy to separate, so as to ensure the display effect and increase the lifespan of the OLED display panel. Contents of the invention [0004] Based on solving the above problems, the present invention provides an OLED displ...

Claims

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Application Information

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IPC IPC(8): G09F9/30H01L27/32H01L51/56
CPCG09F9/301H10K59/00H10K71/00
Inventor 孙德瑞侯新祥
Owner 广州华速信息技术有限公司
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