Organic electroluminescence display device

Patent metadata

Field	Value
Publication number	US-10468467-B2
Application number	US-201716084279-A
Country	US
Kind code	B2
Filing date	Mar 8, 2017
Priority date	Mar 15, 2016
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

Provided is an organic EL display device including an organic EL display panel exhibiting flexibility, a functional layer portion provided to face the organic EL display panel on one surface side thereof and exhibiting flexibility, and a support layer portion provided to face the organic EL display panel on the other surface side thereof and exhibiting flexibility. The functional layer portion is slidably provided on one surface of the organic EL display panel, and the support layer portion is slidably provided on the other surface of the organic EL display panel.

First claim

The invention claimed is:

1. An organic electroluminescence (EL) display device comprising:
an organic EL display panel exhibiting flexibility;
a functional layer portion provided to face the organic EL display panel on one surface side thereof and exhibiting flexibility; and
a support layer portion provided to face the organic EL display panel on the other surface side thereof and exhibiting flexibility, wherein
the organic EL display panel, the functional layer portion, and the support layer portion are integrated by a seal member provided at a peripheral end portion of the organic EL display panel,
the functional layer portion, the support layer portion, and the seal member exhibit flexibility,
the functional layer portion is slidably provided on one surface of the organic EL display panel in a state in which a peripheral end portion of the functional layer portion and the peripheral end portion of the organic EL display panel are fixed by the seal member, and
the support layer portion is slidably provided on the other surface of the organic EL display panel in a state in which a peripheral portion of the support layer portion and the peripheral end portion of the organic EL display panel are fixed by the seal member.

2. The organic EL display device according to claim 1 , wherein
a first spacer movable on at least one surface of the organic EL display panel and the functional layer portion is provided between the organic EL display panel and the functional layer portion, and
a second spacer movable on at least one surface of the organic EL display panel and the support layer portion is provided between the organic EL display panel and the support layer portion.

3. The organic EL display device according to claim 2 , wherein a space surrounded by the organic EL display panel, the functional layer portion, and the seal member is filled with a transparent liquid.

4. The organic EL display device according to claim 3 , wherein a refractive index of the transparent liquid is identical to that of the first spacer.

5. The organic EL display device according to claim 3 , wherein the refractive index of the transparent liquid and the refractive index of the first spacer are between a refractive index of a surface layer of the functional layer portion on an organic EL display panel side and a refractive index of a surface layer of the organic EL display panel on a functional layer portion side.

6. The organic EL display device according to claim 2 , wherein at least one of the first spacer or the second spacer is defined as a columnar body, and an axis of the columnar body is arranged in parallel with a bending axis direction for bending the organic EL display panel, the functional layer portion, and the support layer portion.

7. The organic EL display device according to claim 2 , wherein at least one of the first spacer or the second spacer is defined as a columnar body, and is provided in a state in which a bottom surface of the columnar body stands, in a fixed manner, on corresponding surfaces of the organic EL display panel, the functional layer portion, and the support layer portion.

8. The organic EL display device according to claim 1 , wherein the functional layer portion includes at least one of a polarization plate, a touch panel, and a hard coating layer.

9. The organic EL display device according to claim 1 , wherein
the functional layer portion includes multiple functional layers provided to face each other, and
among the multiple functional layers, a pair of adjacent functional layers are slidably provided on each other.

10. The organic EL display device according to claim 9 , wherein
other spacers movable on at least one of a pair of surfaces facing each other between the pair of functional layers are provided between the pair of functional layers, and
the multiple functional layers are, together with the organic EL display panel and the support layer portion, integrated by a seal member provided at each peripheral end portion of the multiple functional layers and exhibiting flexibility.

11. The organic EL display device according to claim 10 , wherein the other spacers are defined as columnar bodies, and an axis of each columnar body is arranged in parallel with a bending axis direction for bending the multiple functional layers.

12. The organic EL display device according to claim 10 , wherein the other spacers are defined as columnar bodies, and each spacer is provided in a state in which a bottom surface of the columnar body stands, in a fixed manner, on corresponding surfaces of the multiple functional layers.

13. The organic EL display device according to claim 9 , wherein the multiple functional layers are a polarization plate, a touch panel, and a hard coating layer provided in this order from the organic EL display panel side.

14. The organic EL display device according to claim 2 , wherein a space surrounded by the organic EL display panel, the support layer portion, and the seal member is filled with a transparent liquid.

15. The organic EL display device according to claim 1 , wherein
the seal member is frame-shaped, and
an outer frame of the seal member is larger than an outer edge of the organic EL display panel and an outer edge of the functional support layer portion, and smaller than an outer edge of the support layer portion.

Assignees

• Sharp Kk

Inventors

• Sonoda Tohru
• Hirase Takeshi
• Senoo Tohru
• Ochi Takashi
• Ishida Mamoru

Classifications

• G09F9/30

  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 title

• G02B5/3033

  in the form of a thin sheet or foil, e.g. Polaroid · CPC title

• G02B1/14

  Protective coatings, e.g. hard coatings · CPC title

• G09F9/00

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title

• G02B5/30

  Polarising elements (light-modulating devices with active elements G02F1/00) · CPC title