IP Library Granted Patent US 7,038,484
Granted Patent B2
US 7,038,484 · App. 11/195,821 · Granted May 2, 2006

Display device

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Quick Facts
Patent No.
US 7,038,484
App. No.
11/195,821
Granted
May 2, 2006
Kind
B2
Abstract

A display device includes a first inspection wiring line that is connected to first wiring lines of a first wiring line group and to third wiring lines of a second wiring line group, and a second inspection wiring line that is connected to second wiring lines of the first wiring line group, which neighbor the first wiring lines, and to fourth wiring lines of the second wiring line group, which neighbor the third wiring lines.

Claims (24)

1. A display device comprising:

an effective display section composed of a plurality of display pixels;

a first wiring line group that is disposed on one end side of a peripheral part, which is located on an outside of the effective display section, and that comprises wiring lines connected to odd-number-th scan lines, to which driving signals for turning on/off the display pixels on odd-number-th rows are supplied;

a second wiring line group that is disposed on the other end side of the peripheral part, and comprises wiring lines connected to even-number-th scan lines, to which driving signals for turning on/off the display pixels on even-number-th rows are supplied;

a first inspection wiring line that is connected to first wiring lines of the first wiring line group and to third wiring lines of the second wiring line group; and

a second inspection wiring line that is connected to second wiring lines of the first wiring line group, which neighbor the first wiring lines, and to fourth wiring lines of the second wiring line group, which neighbor the third wiring lines.

2. The display device according to claim 1 , wherein one end portion of each of the first inspection wiring line and the second inspection wiring line is provided with an input pad that enables input of a driving signal.

3. The display device according to claim 1 , wherein the effective display section is provided on a liquid crystal display panel in which a liquid crystal layer is interposed between an array substrate and a counter-substrate.

4. The display device according to claim 3 , wherein the first inspection wiring line and the second inspection wiring line are disposed on an extension part of the array substrate, which extends outward beyond an end portion of the counter-substrate.

5. The display device according to claim 4 , further comprising a driving IC chip that is disposed at a position corresponding to an area where the first inspection wiring line and the second inspection wiring line are disposed.

6. The display device according to claim 5 , wherein the driving IC chip includes a first driving unit that supplies the driving signals to the odd-number-th scan lines, a second driving unit that supplies the driving signals to the even-number-th scan lines, and a signal line driving section that is sandwiched between the first driving unit and the second driving unit.

7. A display device comprising:

an effective display section composed of a plurality of display pixels;

a first wiring line group that is disposed on one end side of a peripheral part, which is located on an outside of the effective display section, and that comprises wiring lines connected to odd-number-th scan lines, to which driving signals for turning on/off the display pixels on odd-number-th rows are supplied;

a second wiring line group that is disposed on the other end side of the peripheral part, and comprises wiring lines connected to even-number-th scan lines, to which driving signals for turning on/off the display pixels on even-number-th rows are supplied;

a first inspection wiring line that is connected to first wiring lines of the first wiring line group and to second wiring lines of the first wiring line group, which neighbor the first wiring lines;

a second inspection wiring line that is connected to third wiring lines of the second wiring line group and to fourth wiring lines of the second wiring line group, which neighbor the third wiring lines;

a first switching signal line that is supplied with a switching signal for ON/OFF controlling first switch elements, which are disposed between the first inspection wiring line and the first wiring lines, and third switch elements, which are disposed between the second inspection wiring line and the third wiring lines; and

a second switching signal line that is supplied with a switching signal for ON/OFF controlling second switch elements, which are disposed between the first inspection wiring line and the second wiring lines, and fourth switch elements, which are disposed between the second inspection wiring line and the fourth wiring lines.

8. The display device according to claim 7 , wherein one end portion of each of the first inspection wiring line, the second inspection wiring line, the first switching signal line and the second switching signal line is provided with an input pad that enables input of a driving signal.

9. The display device according to claim 7 , wherein the effective display section is provided on a liquid crystal display panel in which a liquid crystal layer is interposed between an array substrate and a counter-substrate.

10. The display device according to claim 9 , wherein the first inspection wiring line and the second inspection wiring line are disposed on an extension part of the array substrate, which extends outward beyond an end portion of the counter-substrate.

11. The display device according to claim 10 , further comprising a driving IC chip that is disposed at a position corresponding to an area where the first inspection wiring line and the second inspection wiring line are disposed.

12. The display device according to claim 11 , wherein the driving IC chip includes a first driving unit that supplies the driving signals to the odd-number-th scan lines, a second driving unit that supplies the driving signals to the even-number-th scan lines, and a signal line driving section that is sandwiched between the first driving unit and the second driving unit.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072209/0001 →
MERGER AND CHANGE OF NAME Recorded Jul 2, 2025
From: JAPAN DISPLAY EAST INC.; JAPAN DISPLAY CENTRAL INC.
To: JAPAN DISPLAY INC.
Reel/Frame 071787/0434 →
CHANGE OF NAME Recorded Jun 8, 2012
From: TOSHIBA MATSUSHITA DISPLAY TECHNOLOGY CO., LTD.
To: TOSHIBA MOBILE DISPLAY CO., LTD.
Reel/Frame 028339/0273 →
CHANGE OF NAME Recorded Jun 8, 2012
From: TOSHIBA MOBILE DISPLAY CO., LTD.
To: JAPAN DISPLAY CENTRAL INC.
Reel/Frame 028339/0316 →