ORGANIC EL DISPLAY DEVICE

• US 20190067636A1
• Filed: 03/08/2017
• Published: 02/28/2019
• Est. Priority Date: 03/15/2016
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: SENOO, Tohru, HIRASE, Takeshi, OCHI, Takashi, SONODA, Tohru, ISHIDA, Mamoru
• Application Number:
  US16/081,043
• Publication Number:
  US 20190067636A1
• Time in Patent Office: Days
• CPC Class Codes: G02B 1/14 Protective coatings, e.g. hard coatings
• CPC Class Codes: G02B 5/20 Filters polarising elements G02B5/30
• CPC Class Codes: G09F 9/30 in which the desired character or characters are formed by combining individual elements panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00
• CPC Class Codes: H10K 2101/00 Properties of the organic materials covered by group H10K85/00
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

An organic EL display device includes: a resin substrate; an organic EL element provided on the resin substrate; a foundation layer covering the organic EL element; and a hard coat layer provided on the foundation layer. The difference between the Martens hardness obtained if the hard coat layer is formed on the glass substrate and the Martens hardness obtained if the hard coat layer is formed on the glass substrate via the resin film is less than 34 N/mm².

Claims

1. An organic EL display device, comprising:

a resin substrate;

an organic EL element provided on the resin substrate;

a foundation layer covering the organic EL element; and

a hard coat layer provided on the foundation layer,

wherein

a difference between

a Martens hardness obtained if the hard coat layer is formed on a glass substrate and

a Martens hardness obtained if the hard coat layer is formed on the glass substrate via a resin film

is less than 34 N/mm².

3. The organic EL display device of claim 1, wherein

a pencil hardness obtained if the hard coat layer is formed on the glass substrate is equal to a pencil hardness obtained if the hard coat layer is formed on the glass substrate via the resin film.

5. The organic EL display device of claim 1, wherein

the Martens hardness of the hard coat layer is determined by F/(26.43 h²), where h is a maximum indentation depth (mm) to which a Vickers indenter can be pressed by nanoindentation under a load F of 4 mN to 6 mN.

6. The organic EL display device of claim 1, wherein

the foundation layer includes a touch panel.

7. The organic EL display device of claim 1, wherein

the foundation layer includes a color filter.

8. The organic EL display device of claim 1, wherein

the hard coat layer is provided on a surface of the device.

2. An organic EL display device, comprising:

a resin substrate;

an organic EL element provided on the resin substrate;

a foundation layer covering the organic EL element; and

a hard coat layer provided on the foundation layer,

wherein

a difference between

a Martens hardness obtained if the hard coat layer is formed on a glass substrate and

a Martens hardness obtained if the hard coat layer is formed on the glass substrate via an organic EL element

is less than 34 N/mm².

4. The organic EL display device of claim 2, wherein

a pencil hardness obtained if the hard coat layer is formed on the glass substrate is equal to a pencil hardness obtained if the hard coat layer is formed on the glass substrate via the organic EL element.