IP Library Granted Patent US 8,982,306
Granted Patent B2
US 8,982,306 · App. 13/485,618 · Granted Mar 17, 2015

Display device and electronic apparatus

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Quick Facts
Patent No.
US 8,982,306
App. No.
13/485,618
Granted
Mar 17, 2015
Kind
B2
Abstract

A display device includes: a pixel section provided between a pair of substrates and including plural pixels; one or plural active components disposed in a frame region around the pixel section on one substrate of the pair of substrates; an insulating film provided in the frame region on the one substrate to cover the one or plural active components; and a sealing layer provided to seal the pixel section and cover an end edge portion of the insulating film in the frame region.

Claims (39)

1. A display device comprising:

a pixel section between a pair of substrates and including plural pixels;

a pair of electrodes on one substrate of the pair of substrates in the pixel section;

a liquid crystal layer being disposed between the pair of substrates and being driven by a lateral electric field generated between the pair of electrodes;

one or plural thin film transistors in a frame region around the pixel section on the substrate;

an organic insulating film in the frame region entirely covering and planarizing the one or plural thin film transistors in both the pixel section and the frame region;

a seal layer sealing a gap between the pair of substrates and covering an end edge portion of the organic insulating film in the frame region; and

an inorganic insulating film being between the organic insulating film and the seal layer and covering an end edge portion of the organic insulating film,

wherein,

the thin film transistor and a wiring layer electrically connected to the thin film transistor are covered by the organic insulating film,

the end edge of the seal layer is provided farther on an outer side than an end edge of the organic insulating film, and

the inorganic film is between the pair of electrodes and extends to the frame region.

2. The display device according to claim 1 , wherein the display device includes a wall section around the end edge portion of the insulating film, the wall section being on a side other than a cover portion of the seal layer that covers the end edge portion of the insulating film such that the wall section covers an outer surface of the cover portion.

3. The display device according to claim 1 , wherein:

the display device includes, on a side of the pixel section of the other substrate of the pair of substrates, a color filter layer and another insulating film that covers the color filter layer, and

the seal layer covers an end edge portion of the other insulating film.

4. The display device according to claim 1 , wherein the display device includes an electrode protecting film over the thin film transistor.

5. The display device according to claim 1 , wherein the thin film transistor is a bottom gate type thin film transistor.

6. The display device according to claim 1 , wherein the thin film transistor is a top gate type thin film transistor.

7. The display device according to claim 1 , wherein the thin film transistor includes a semiconductor layer formed of low-temperature polysilicon, microcrystalline silicon, or amorphous silicon.

8. An electronic apparatus comprising a display device, the display device including:

a pixel section between a pair of substrates and including plural pixels;

a pair of electrodes on one substrate of the pair of substrates in the pixel section;

a liquid crystal layer being disposed between the pair of substrates and being driven by a lateral electric field generated between the pair of electrodes;

one or plural thin film transistors in a frame region around the pixel section on the one substrate;

an organic insulating film in the frame region entirely covering and planarizing the one or plural thin film transistors in both the pixel section and the frame region;

a seal layer sealing a gap between the pair of substrates and covering an end edge portion of the organic insulating film in the frame region; and

an inorganic insulating film being between the organic insulating film and the seal layer and covering an end edge portion of the organic insulating film,

wherein,

the thin film transistor and a wiring layer electrically connected to the thin film transistor are covered by the organic insulating film,

the end edge of the seal layer is provided farther on an outer side than an end edge of the organic insulating film, and

the inorganic film is between the pair of electrodes and extends to the frame region.

9. The display device according to claim 4 , wherein:

the electrode protecting film entirely covers the one or plural thin film transistors, and

the electrode protecting film is between the one or plural thin film transistors and the organic insulating film.

10. The display device according to claim 1 , wherein the seal layer has lower moisture permeability than the organic insulating film.

11. The display device according to claim 1 , wherein:

one of the pair of electrodes includes a plurality of slits, and

the lateral electric field generated between the pair of electrodes is applied to the liquid crystal layer through the plurality of slits.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072398/0001 →
MERGER AND CHANGE OF NAME Recorded Jul 24, 2025
From: JAPAN DISPLAY EAST INC.; JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 071935/0063 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2013
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 030192/0347 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 2, 2012
From: NOMURA, MORIKAZU
To: SONY CORPORATION
Reel/Frame 028709/0582 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2012
From: YAMAGUCHI, JUN; FUJIMURA, TAKASHI
To: SONY CORPORATION
Reel/Frame 028299/0517 →