# US 8,786,582 B2 · Display panel and display apparatus

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- Number: US 8,786,582 B2
- Document ID: US8786582B2
- Status: Granted
- Kind: B2
- Application number: 13/504,133
- Filed: 2010-06-02
- Published: 2012-08-30
- Granted: 2014-07-22
- Earliest claimed: 2009-10-27
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Junya Shimada; Shinya Tanaka; Tetsuo Kikuchi; Chikao Yamasaki
- Inventors: Junya Shimada; Shinya Tanaka; Tetsuo Kikuchi; Chikao Yamasaki
- Web page: https://patentgrep.com/patent/US8786582B2

## CPC

- G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels}
- G02F 1/13454: {Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence)}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

The present invention is to provide a display panel and a display apparatus which can reduce the picture-frame area while sufficiently preventing the delay of signals by allowing a required amount of current to flow. The display panel of the present invention is a display panel which includes a circuit substrate, and an opposed substrate facing the circuit substrate, and which is featured in that the circuit section is arranged in the picture-frame area of the display panel, in that the circuit section includes trunk wiring, and branch wiring connected to the gate electrode or the source electrode of a transistor in the circuit section, and in that all or a part of the trunk wiring is provided on the opposed substrate, and the branch wiring is provided on the circuit substrate so as to be electrically connected to the trunk wiring via a conductor.

## Claims

### Claim 1

A display panel including a circuit substrate and an opposed substrate facing the circuit substrate, wherein
the display panel includes a circuit section arranged in a picture-frame area of the display panel,
the circuit section includes a trunk wiring, and a branch wiring connected to a gate electrode or a source electrode of a transistor in the circuit section,
all or a part of the trunk wiring is provided on the opposed substrate,
the branch wiring is provided on the circuit substrate and is electrically connected to the trunk wiring via a conductor, and
a part of the trunk wiring is arranged on a spacer formed on the opposed substrate, and the trunk wiring arranged on the spacer is connected to the conductor.

### Claim 2 (depends on 1)

The display panel according to claim 1, wherein
the trunk wiring includes a redundant structure in which a wiring section provided on the circuit substrate and a wiring section provided on the opposed substrate are connected in parallel with each other.

### Claim 3 (depends on 1)

The display panel according to claim 1, wherein
all or a part of the transistors are amorphous silicon thin film transistors.

### Claim 4 (depends on 1)

The display panel according to claim 1, wherein
the circuit section includes a gate driver.

### Claim 5 (depends on 1)

The display panel according to claim 1, wherein
all or a part of the trunk wiring provided on the opposed substrate is formed of an opposed electrode material.

### Claim 6 (depends on 1)

The display panel according to claim 1, wherein
all or a part of the trunk wiring provided on the opposed substrate is formed of a metallic black matrix material.

### Claim 7 (depends on 1)

A display apparatus comprising the display panel according to claim 1.