Liquid crystal display panel

Patent metadata

Field	Value
Publication number	US-10884305-B2
Application number	US-201916299193-A
Country	US
Kind code	B2
Filing date	Mar 12, 2019
Priority date	Mar 16, 2018
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

An embodiment of the present invention provides a liquid crystal display panel which allows for the area of a wiring diverting region to be reduced. A liquid crystal display panel 1 includes: a substrate ( 100 ) having a displaying region ( 30 ) and a non-displaying region ( 10 ); a plurality of first wires provided in a first layer; a plurality of second wires which are provided in a second layer differing from the first layer; a plurality of touch panel lines ( 60 ) which are provided in a third layer differing from both the first and second layers; a plurality of touch panel electrodes ( 70 ) each of which is connected to a respective one of the plurality of touch panel lines ( 60 ); and a sensing section ( 80 ) which is provided at a first end of the substrate ( 100 ) and connected to the plurality of touch panel lines ( 60 ), out of those of the plurality of touch panel lines ( 60 ) connected to those of the plurality of touch panel electrodes ( 70 ) located farther away from the sensing section ( 80 ) than is the non-displaying region ( 10 ), at least one touch panel line ( 60 ) being provided so as to run from the sensing section ( 80 ) to a second end of the substrate ( 100 ) and, at the second end, turn back toward the plurality of touch panel electrodes ( 70 ).

First claim

The invention claimed is:

1. A liquid crystal display panel comprising:
a substrate having a displaying region and a non-displaying region;
a plurality of first wires provided in a first layer;
a plurality of second wires which are provided in a second layer differing from the first layer in a manner so as to run crosswise with respect to the plurality of first wires;
a plurality of touch panel lines which are provided in a third layer differing from both the first and second layers;
a plurality of touch panel electrodes each of which is connected to a respective one of the plurality of touch panel lines; and
a sensing section which is provided at a first end of the substrate and connected to the plurality of touch panel lines,
out of those of the plurality of touch panel lines connected to those of the plurality of touch panel electrodes located farther away from the sensing section than is the non-displaying region, at least one touch panel line being provided so as to run from the sensing section to a second end of the substrate and, at the second end, turn back toward the plurality of touch panel electrodes.

2. The liquid crystal display panel as set forth in claim 1 , wherein in a wiring diverting region located peripherally to the non-displaying region, at least one of the plurality of first wires and at least one of the plurality of second wires achieve an electrical connection via a respective connecting line provided in the third layer.

3. The liquid crystal display panel as set forth in claim 1 , wherein those of the plurality of touch panel lines connected to those of the plurality of touch panel electrodes located closer to the sensing section than is the non-displaying region are provided so as to run from the sensing section to a respective one of the plurality of touch panel electrodes without extending to the second end of the substrate and then turning back toward the respective one of the touch panel electrodes.

4. The liquid crystal display panel as set forth in claim 1 , wherein in the third layer, the plurality of touch panel lines are provided in a manner so as to be parallel to respective ones of the plurality of first wires.

5. The liquid crystal display panel as set forth in claim 1 , wherein the plurality of touch panel lines are provided above a portion of the plurality of first wires, an insulating layer being provided between the plurality of touch panel lines and the plurality of first wires.

6. The liquid crystal display panel as set forth in claim 1 , wherein the plurality of first wires are respective data lines, and the plurality of second wires are respective gate lines.

7. The liquid crystal display panel as set forth in claim 1 , wherein the plurality of first wires are respective gate lines, and the plurality of second wires are respective data lines.

Assignees

• Sharp Kk

Inventors

• Yoshida Masahiro

Classifications

• G02F1/13629

  Multilayer wirings · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/04164

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G02F1/134309

  characterised by their geometrical arrangement · CPC title