Structure and manufacturing method of foldable AMOLED display screen

A manufacturing method and display technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of unfavorable folding screens, increased thickness, creases, etc., and achieve good folding recovery and overall The effect of thickness reduction and yield improvement

Pending Publication Date: 2020-05-19
AENEQ CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the first Samsung solution, the main disadvantage is that after the CPI as the protective layer of the OLED layer is added with a hardening film, although it can be bent, there will be creases after bending, which is very unfavorable for folding screens.
For the second solution, because a layer of PET is added and an additional layer of OCA is required, the thickness increases a lot, and CPI is also used, which will cause creases

Method used

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  • Structure and manufacturing method of foldable AMOLED display screen
  • Structure and manufacturing method of foldable AMOLED display screen
  • Structure and manufacturing method of foldable AMOLED display screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as image 3 As shown, a foldable AMOLED display structure includes a PI substrate 1, a circuit driving layer 2, and an OLED layer 3 from bottom to top, and a multi-layer thin film encapsulation layer 4 is arranged above the OLED layer 3, and the multi-layer thin film An ultra-thin glass layer 6 is pasted on the packaging layer, a touch sensor layer 7 is coated on the top of the ultra-thin glass layer 6, a circular polarizer 9 is pasted on the top of the touch sensor layer 7, and PET11, PET11 is pasted on the top of the circular polarizer The upper surface is provided with a hardened antifouling film 12 .

[0061] The circuit driving layer in this embodiment is a TFT made of LTPS, the OLED layer is RGB_OLED, and the TFT and OLED form an AMOLED.

[0062] This embodiment preferably also includes a first optical adhesive layer 5, a second optical adhesive layer 8, and a third optical adhesive layer 10, and the ultra-thin glass layer and the multilayer film packaging l...

Embodiment 2

[0077] Such as Figure 4 As shown, a foldable AMOLED display structure includes a PI substrate 1, a circuit driving layer 2, and an OLED layer 3 from bottom to top, and a multi-layer thin film encapsulation layer 4 is arranged above the OLED layer 3, and the multi-layer thin film A circular polarizer 9 is pasted on the top of the encapsulation layer 4, an ultra-thin glass layer 6 is pasted on the top of the circular polarizer 9, a touch sensor layer 7 is coated on the top of the ultra-thin glass layer 6, and a touch sensor layer 7 is coated on the top of the touch sensor layer 7. Laminated with PET11, the upper surface of the PET is provided with a hardened antifouling film 12.

[0078] In this embodiment, the first optical adhesive layer 5 is used to bond the circular polarizer and the multilayer thin film encapsulation layer; the second optical adhesive layer 8 is used to bond the circular polarizer and the ultra-thin glass layer; the third optical adhesive layer 10 Used fo...

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Abstract

The invention discloses a structure of a foldable AMOLED display screen. The OLED display panel sequentially comprises a PI substrate, a circuit driving layer and an OLED layer from bottom to top, a plurality of thin film packaging layers are arranged above the OLED layer; an ultra-thin glass layer is attached to the upper portion of the multi-layer thin film packaging layer. A touch sensor layeris plated above the ultrathin glass layer; a circular polarizer is attached to the upper portion of the touch sensor layer. PET is attached to the upper portion of the circular polarizer. A hardened anti-fouling film is arranged on the upper surface of the PET, or the circular polarizer is arranged below the ultrathin glass layer, the ultrathin glass is used as a protective layer to protect the flexible AMOLED, no crease exists during bending, the whole touch screen is thinner, bending is facilitated, meanwhile, the touch sensor is located on the ultrathin glass, and the yield during production is higher.

Description

technical field [0001] The invention belongs to the field of OLED display screens, and more specifically relates to a structure and a manufacturing method of a foldable AMOLED display screen. Background technique [0002] Since the beginning of 2019, companies including BOE have successively exposed fully self-developed foldable self-illuminating flexible screens. According to network news, Samsung, Huawei, and other companies have also made related products. China Unicom even stated in the official Weibo that "folding screen mobile phones are not far away!" [0003] At present, there are many problems with the folding screen mobile phones released on the market. For example, Samsung’s Galaxy Fold has just released the test machine, and there are various problems on the screen. [0004] In addition to the fact that the flexible OLED display panel of a folding screen mobile phone must be foldable, in the entire mobile phone display, there must be some other functional layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041H01L27/32G09F9/30
CPCG06F3/0412G09F9/301G06F2203/04103H10K59/40H10K59/122
Inventor 赖耀升江建志
Owner AENEQ CO LTD
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