IP Library Granted Patent US 10,553,666
Granted Patent B2
US 10,553,666 · App. 15/940,086 · Granted Feb 4, 2020

Display device

Inventor: Heisuke Kanaya (Minato-ku, JP)
Assignee: Japan Display Inc.
H01L27/3276G09G3/006G09G3/3233H01L51/0097H01L51/5253H01L2251/5338H01L2251/5392
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Quick Facts
Patent No.
US 10,553,666
App. No.
15/940,086
Granted
Feb 4, 2020
Kind
B2
Abstract

There is provided a display device including a pixel array portion including a plurality of pixels disposed in a matrix, a bending portion disposed at least outside the pixel array portion and to be bent, a peripheral circuit connected to the pixel array portion via the bending portion, the peripheral circuit for generating a signal to be supplied to the pixels, and a sealing film disposed avoiding the bending portion, the sealing film for preventing invasion of water particles into the pixel array portion and the peripheral circuit.

Claims (19)

1. A display device, comprising:

a pixel array portion including a plurality of pixels disposed in a matrix;

a bending portion disposed at least outside the pixel array portion and to be bent;

a peripheral circuit connected to the pixel array portion via the bending portion,

the peripheral circuit for generating a signal to be supplied to the pixels; and

a sealing film disposed avoiding the bending portion, the sealing film for preventing invasion of water particles into the pixel array portion and the peripheral circuit, wherein the sealing film includes a first sealing region that covers the pixel array portion and a second sealing region that covers the peripheral circuit, and

the first sealing region and the second sealing region are separated from each other at the bending portion;

wherein the first sealing region includes a first inorganic insulation layer, a first organic layer on the first inorganic insulation layer, and a second inorganic insulation layer on the first organic layer,

the second sealing region includes a third inorganic insulation layer, a second organic layer on the third inorganic insulation layer, and a fourth inorganic insulation layer on the second organic layer,

a first contact region surrounds the first organic layer in which the first inorganic insulation layer is in contact with the second inorganic insulation layer, and

a second contact region surrounds the second organic layer in which the third inorganic insulation layer is in contact with the fourth inorganic insulation layer.

2. The display device according to claim 1 , wherein the peripheral circuit includes a scan signal generation circuit that generates a scan signal for selection of timing at which to supply the signal to the pixels.

3. The display device according to claim 1 , wherein

each of the pixels disposed in a matrix includes a plurality of sub-pixels that emit lights in respective different colors, and

the peripheral circuit includes a signal selection circuit that selects a sub-pixel to which a current is supplied from among the sub-pixels included in each pixel.

4. The display device according to claim 1 , wherein the peripheral circuit includes an inspection circuit that inspects an operation of the pixel array portion.

5. The display device according to claim 1 , further comprising a protection film that protects the sealing film,

wherein

the protection film is disposed so as to cover the pixel array portion, the bending portion, and the peripheral circuit area.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2018
From: KANAYA, HEISUKE
To: JAPAN DISPLAY INC.
Reel/Frame 045388/0123 →
Priority Claims (1)
JP 2017-075519 · Apr 5, 2017 · national
Continuity (1)
Related Publication 20180294328A1 · Oct 11, 2018