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Flexible display, method for manufacturing same, and support substrate for flexible display

a technology of flexible display and supporting substrate, which is applied in the direction of sustainable manufacturing/processing, identification means, instruments, etc., can solve the problems of deteriorating device characteristics and gas barrier films, and leaking water vapor path, and achieve the effect of deteriorating encapsulation performan

Inactive Publication Date: 2021-07-15
SAKAI DISPLAY PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach effectively suppresses the deterioration of encapsulation performance attributed to minute structures on the substrate surface, improving the moisture resistance and reliability of the flexible display.

Problems solved by technology

The contamination can deteriorate the device characteristics and the gas barrier film.
A particle whose diameter is greater than, for example, 0.5 μm (typically, a particle which has a height of 1 μm to 5 μm) can be a cause of defects in TFTs, a cause of short-circuit or breakage of wires in the functional layer, or a cause of formation of a leak path for water vapor in the gas barrier film.

Method used

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  • Flexible display, method for manufacturing same, and support substrate for flexible display
  • Flexible display, method for manufacturing same, and support substrate for flexible display
  • Flexible display, method for manufacturing same, and support substrate for flexible display

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embodiment

[0066]Hereinafter, embodiments of the present disclosure are described. In the following description, unnecessarily detailed description will be omitted. For example, detailed description of well-known matter and repetitive description of substantially identical elements will be omitted. This is for the purpose of avoiding the following description from being unnecessarily redundant and assisting those skilled in the art to easily understand the description. The present inventors provide the attached drawings and the following description for the purpose of assisting those skilled in the art to fully understand the present disclosure. Providing these drawings and description does not intend to limit the subject matter recited in the claims.

[0067]A flexible display of an embodiment of the present disclosure includes a flexible substrate and an OLED device supported by the flexible substrate. The flexible substrate includes a plastic film whose surface has a polish recess and an oxide...

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Abstract

A flexible display supporting substrate of the present disclosure includes: a glass base (11); a plastic film (12) which has a surface (12s), the surface having a polish recess (12c), the plastic film being supported by the glass base (11); and an oxide layer (20) overlying a part of the surface (12s) of the plastic film (12) and covering at least part of the polish recess (12c).

Description

TECHNICAL FIELD[0001]The present disclosure relates to a flexible display, a production method of the flexible display, and a flexible display supporting substrate.BACKGROUND ART[0002]A typical example of the flexible display includes a film which is made of a synthetic resin such as polyimide (hereinafter, referred to as “plastic film”), and elements supported by the plastic film, such asTFTs (Thin Film Transistors) and OLEDs (Organic Light Emitting Diodes). The plastic film functions as a flexible substrate. The flexible display is encapsulated with a gas barrier film (encapsulation film) because an organic semiconductor layer and an electrode layer which are constituents of the OLED are likely to deteriorate due to water vapor.[0003]Production of the above-described flexible display is carried out using a glass base on which a plastic film is formed over the upper surface (flexible display supporting substrate). The glass base functions as a support for keeping the shape of the p...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01L51/00H01L51/52H01L51/56H10K99/00
CPCH01L51/0097H01L51/56H01L51/5253H05B33/02H05B33/04H05B33/10G09F9/00G09F9/30Y02E10/549Y02P70/50H10K59/12H10K77/111H10K2102/311H10K59/873H10K71/40H10K50/844H10K71/00
Inventor TANAKA, KOHICHIKISHIMOTO, KATSUHIKO
Owner SAKAI DISPLAY PROD