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Foldable display device

A technology for display devices and display panels, which is applied in the direction of identification devices, instruments, optical components, etc.

Active Publication Date: 2021-06-29
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In addition, the inventors of the present disclosure have recognized that as the dent recovery ability of the foldable display device decreases, the dent may be permanently maintained.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment approach

[0127] According to an exemplary embodiment of the present disclosure, the first hard coat layer 161 including a material combining a urethane-acrylate-based coupling agent, an acrylic-based coupling agent, or an epoxy-based coupling agent and a silicone-based resin is configured. To have a predetermined surface hardness.

[0128] The surface hardness of the foldable display device 100 may be measured according to various test standards. For example, the surface hardness of the foldable display device 100 may be obtained by measuring pencil scratch hardness under a specific vertical load according to ASTM D3363, which is one of international standards. The vertical load may be eg 1 Kg, 750g, 500g or 250g. However, the present disclosure is not limited thereto. To illustrate further, pencil scratch hardness can be classified as 9H, 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, F, B, 2B, 3B, 4B, 5B, 6B, 7B, 8B, and 9B. Here, the hardness of 9H is the highest, and the hardness of 9B is the l...

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Abstract

The invention relates to a foldable display device. According to an example of the invention, the display includes a foldable display panel and a foldable cover window disposed on the foldable display panel. The foldable cover window includes a flexible film and a first hard coating layer located on the flexible film with the first hard coating layer including a base material in combination with a linker material. The base material is a siloxane-based resin and the linker material is one of: a urethane-acrylic-based linker, an acrylic-based linker, and an epoxy-based linker.

Description

technical field [0001] The present disclosure relates to a foldable display device, and more particularly, to a foldable display device with improved reliability. Background technique [0002] Display devices for computer monitors, TVs, and mobile phones include electroluminescent display devices that emit light by themselves, liquid crystal display (LCD) devices that require a separate light source, and the like. [0003] The electroluminescence display device includes an organic light emitting diode display device (OLED), an inorganic light emitting diode display device, a micro LED display device, a mini LED display device, and the like. [0004] Such display devices are being applied to more and more fields including not only computer monitors and TVs but also personal mobile devices and the like, and thus, display devices having reduced volume and weight while having a wide display area are being studied. [0005] Recently, as a next-generation display device, a foldab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30
CPCG09F9/301G02B1/14G06F1/1652Y02E10/549H10K59/122H10K77/111H10K50/86H10K50/844H10K2102/311H10K50/841H10K59/12
Inventor 朴暎姝李胜圭张世镇李政旻郭泰亨宋惠善
Owner LG DISPLAY CO LTD