IP Library Granted Patent US 9,983,449
Granted Patent B2
US 9,983,449 · App. 15/605,409 · Granted May 29, 2018

Display device

Inventors: Motoharu Miyamoto (Minato-ku, JP); Atsuhiro Katayama (Minato-ku, JP)
Assignee: Japan Display Inc.
G02F1/136204G02F1/1368G02F1/13306G02F1/133308G02F1/133345G02F1/134336G02F1/134363G02F1/136286H01L27/124H01L27/1222G02F1/1339G02F1/13378G02F1/13439G02F1/133512G02F1/133514G02F2001/133388G02F2001/133519G02F2201/121G02F2201/123G02F2203/04
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Quick Facts
Patent No.
US 9,983,449
App. No.
15/605,409
Granted
May 29, 2018
Kind
B2
Abstract

A liquid crystal display device includes a TFT substrate and a counter substrate with liquid crystal sandwiched therebetween. The TFT substrate has scanning lines 10 extending in a first direction and arrayed in a second direction and video signal lines 20 extending in the second direction and arrayed in the first direction. The TFT substrate has a display area 500 in which TFT pixels are arrayed in a matrix pattern, and a frame area 600 surrounding the display area. In the frame area 600 , common bus wires 521 are formed in the same layer and with the same material as the video signal lines 20 and are impressed with a common voltage. Dummy TFTs are formed in a layer under the common bus wires 521 . The scanning lines 10 , extending over the frame area 600 , are divided outside the display area and are interconnected by bridging wires 170.

Claims (21)

1. A display device comprising:

a substrate that has scanning lines extending in a first direction and arrayed in a second direction and video signal lines arrayed in the first direction,

wherein the scanning lines include

a first scanning line extending in a display area and a peripheral area outside the display area, and

second scanning line formed in the peripheral area,

the first scanning line and the second scanning line are connected by a bridging wire in the peripheral area.

2. The display device according to claim 1 , wherein the bridging wire extends in the second direction.

3. The display device according to claim 1 , wherein

first semiconductor layers overlap with the first scanning line in the display area and second semiconductor layers overlap in the peripheral area.

4. The display device according to claim 3 , wherein

the first semiconductor layers and the second semiconductor layers are in a same shape.

5. The display device according to claim 3 , wherein

the first semiconductor layers and the second semiconductor layers are formed in a same pitch.

6. The display device according to claim 3 , wherein

the first semiconductor layers connect with the video signal lines,

the second semiconductor layers don't connect with the video signal lines.

7. The display device according to claim 6 , wherein

a common bus line to which a common voltage is applied is formed in the peripheral area, and the second semiconductor layers connect to the common bus line.

8. The display device according to claim 1 , wherein scanning line drive circuits are disposed in the peripheral area in a manner arranged on both sides of the display area.

9. The display device according to claim 8 , wherein

the second scanning line connects to one of the scanning line driving circuits.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
Priority Claims (1)
JP 2015-189683 · Sep 28, 2015 · national
Continuity (2)
Continuation 15237011 · Aug 15, 2016
Related Publication 20170261822A1 · Sep 14, 2017