IP Library › Granted Patent US 12,292,663
Granted Patent B2
US 12,292,663 · App. 18/242,660 · Granted May 6, 2025

Liquid crystal display panel

Inventor: Gen Koide (Tokyo, JP)
Assignee: Japan Display Inc.
G02F1/136286G02F1/133514G02F1/134336G02F1/1368G02F1/13606G02F2201/40H10D30/6733H10D30/6757
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Quick Facts
Patent No.
US 12,292,663
App. No.
18/242,660
Granted
May 6, 2025
Kind
B2
Abstract

According to an aspect, a liquid crystal display panel includes an extending portion. The extending portion is metal wiring provided on the same plane as a plane parallel to a surface of a TFT substrate on which a scan line extends in the X-direction, and is electrically conductive metal extending from the scan line. The extending portion partially overlaps a space, but does not overlap an opening area, in the Z-direction.

Claims (32)

1. A liquid crystal display panel comprising:

a first substrate;

a second substrate disposed so as to face the first substrate with a liquid crystal layer interposed therebetween;

a pixel electrode;

a thin-film transistor including a semiconductor layer and coupled to the pixel electrode;

a scan line extending overall in a first direction;

a signal line crossing the scan line; and

an insulation layer that insulates the scan line and the signal line,

wherein the scan line comprises:

a main scan line including first scan line portions extending in a first direction and second scan line portions extending in a second direction different from the first direction; and

a bypass portion coupled to respective second scan line portions, the bypass portion extending in the first direction and deviated in the second direction from an intersection where a first scan line portion and a second scan line portion cross each other,

wherein the thin-film transistor includes a first channel and a second channel,

the second channel is disposed where the semiconductor layer crosses the bypass portion,

the first scan line portions are disposed apart from the bypass portion in the second direction, and

each of the first scan line portions crosses a corresponding one of a plurality of the signal lines.

2. The liquid crystal display panel according to claim 1 , wherein

the scan line has:

a first point having a position that is an intersection with the signal line; and

a second point having a position in the first direction being the same as a coupling portion of the thin-film transistor and the pixel electrode in the first direction, and

the position of the first point of the scan line in the second direction is different from the position of second point of the scan line in the second direction.

3. The liquid crystal display panel according to claim 1 , further including a pedestal electrode, wherein

the thin-film transistor is connected to the pixel electrode through the pedestal electrode.

4. The liquid crystal display panel according to claim 3 , wherein

one side of the pedestal electrode is aligned to one side of part of the scan line, the part intersecting the signal line in a plan view.

5. The liquid crystal display panel according to claim 1 , wherein

the thin-film transistor is a double-gate transistor, and

a position where the first channel overlaps the scan line in the second direction is different from a position where the second channel overlaps the scan line in the second direction.

6. The liquid crystal display panel according to claim 5 , wherein

the first channel overlaps the signal line, and

the second channel overlaps the pedestal electrode.

7. The liquid crystal display panel according to claim 1 , wherein

the bypass portion does not overlap with the first scan line portions in the first direction.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071875/0594 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2023
From: KOIDE, GEN
To: JAPAN DISPLAY INC.
Reel/Frame 064818/0493 →
Priority Claims (1)
JP 2013-008822 · Jan 21, 2013 · national
Continuity (7)
Continuation 17841971 · Jun 16, 2022
Continuation 17201554 · Mar 15, 2021
Continuation 16810322 · Mar 5, 2020
Continuation 16122408 · Sep 5, 2018
Continuation 15144178 · May 2, 2016
Continuation 14157053 · Jan 16, 2014
Related Publication 20230408878A1 · Dec 21, 2023
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