# US 8,570,479 B2 · Liquid crystal electrooptical device

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- Number: US 8,570,479 B2
- Document ID: US8570479B2
- Status: Granted
- Kind: B2
- Application number: 11/624,055
- Filed: 2007-01-17
- Published: 2007-05-24
- Granted: 2013-10-29
- Earliest claimed: 1997-11-28
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Shunpei Yamazaki; Jun Koyama
- Inventors: Shunpei Yamazaki; Jun Koyama
- Web page: https://patentgrep.com/patent/US8570479B2

## CPC

- G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels}
- G02F 1/1345: Conductors connecting electrodes to cell terminals
- 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

To provide means for resolving a problem in which in steps of connecting a panel array substrate and a stick substrate, connection failure is enhanced and reliability is deteriorated by a positional shift caused in connecting operation and a positional shift caused by shrinkage of the substrate, a shape of a total of a stick substrate 103 is constituted by a rectangular shape (Lx1×Ly1) and contiguous electrode pads are arranged to shift by Ts in Y-direction by which lead wirings of the panel array substrate and lead wirings of the stick substrate can be connected with high accuracy and an electrooptical device having high yield and excellent display characteristic is provided.

## Claims

### Claim 1

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction, and
wherein an area of each of the plurality of second electrode pads is larger than an area of the corresponding one of the plurality of first electrode pads.

### Claim 2 (depends on 1)

A display device according to claim 1, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 3 (depends on 1)

A display device according to claim 1, wherein the first substrate is glass substrate.

### Claim 4 (depends on 1)

A display device according to claim 1, wherein the second substrate is glass substrate.

### Claim 5

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein a center of each of the plurality of first electrode pads is shifted from a center of the corresponding one of the plurality of second electrode pads, and
wherein an area of each of the plurality of second electrode pads is larger than an area of the corresponding one of the plurality of first electrode pads.

### Claim 6 (depends on 5)

A display device according to claim 5, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 7 (depends on 5)

A display device according to claim 5, wherein the first substrate is glass substrate.

### Claim 8 (depends on 5)

A display device according to claim 5, wherein the second substrate is glass substrate.

### Claim 9

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit,
a plurality of second wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of third wirings electrically connected to the pixel portion,
a plurality of second electrode pads, and
a plurality of fourth wirings,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of third wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and third wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein each of the plurality of second wirings is electrically connected to a corresponding one of the plurality of fourth wirings, and
wherein an area of each of the plurality of second electrode pads is larger than an area of the corresponding one of the plurality of first electrode pads. pg,32

### Claim 10 (depends on 9)

A display device according to claim 9, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 11 (depends on 9)

A display device according to claim 9, wherein the first substrate is glass substrate.

### Claim 12 (depends on 9)

A display device according to claim 9, wherein the second substrate is glass substrate.

### Claim 13

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit,
a plurality of second wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of third wirings electrically connected to the pixel portion,
a plurality of second electrode pads, and
a plurality of fourth wirings,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of third wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and third wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein a center of each of the plurality of first electrode pads is shifted from a center of the corresponding one of the plurality of second electrode pads,
wherein each of the plurality of second wirings is electrically connected to a corresponding one of the plurality of fourth wirings, and
wherein an area of each of the plurality of second electrode pads is larger than an area of the corresponding one of the plurality of first electrode pads.

### Claim 14 (depends on 13)

A display device according to claim 13, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 15 (depends on 13)

A display device according to claim 13, wherein the first substrate is glass substrate.

### Claim 16 (depends on 13)

A display device according to claim 13, wherein the second substrate is glass substrate.

### Claim 17

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein the pixel portion comprises a plurality of pixel thin film transistors,
wherein each of the plurality of pixel thin film transistors comprises an amorphous silicon film electrically connected to corresponding one of the plurality of second wirings,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction, and
wherein an area of each of the plurality of second electrode pads is larger than an area of the corresponding one of the plurality of first electrode pads.

### Claim 18 (depends on 17)

A display device according to claim 17, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 19 (depends on 17)

A display device according to claim 17, wherein the first substrate is glass substrate.

### Claim 20 (depends on 17)

A display device according to claim 17, wherein the second substrate is glass substrate.

### Claim 21

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein the pixel portion comprises a plurality of pixel thin film transistors,
wherein each of the plurality of pixel thin film transistors comprises an amorphous silicon film electrically connected to corresponding one of the plurality of second wirings,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein a center of each of the plurality of first electrode pads is shifted from a center of the corresponding one of the plurality of second electrode pads, and
wherein an area of each of the plurality of second electrode pads is larger than an area of the corresponding one of the plurality of first electrode pads.

### Claim 22 (depends on 21)

A display device according to claim 21, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 23 (depends on 21)

A display device according to claim 21, wherein the first substrate is glass substrate.

### Claim 24 (depends on 21)

A display device according to claim 21, wherein the second substrate is glass substrate.

### Claim 25

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction, and
wherein an area of each of the plurality of first electrode pads is larger than an area of the corresponding one of the plurality of second electrode pads.

### Claim 26 (depends on 25)

A display device according to claim 25, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 27 (depends on 25)

A display device according to claim 25, wherein the first substrate is glass substrate.

### Claim 28 (depends on 25)

A display device according to claim 25, wherein the second substrate is glass substrate.

### Claim 29

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising;
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein a center of each of the plurality of first electrode pads is shifted from a center of the corresponding one of the plurality of second electrode pads, and
wherein an area of each of the plurality of first electrode pads is larger than an area of the corresponding one of the plurality of second electrode pads.

### Claim 30 (depends on 29)

A display device according to claim 29, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 31 (depends on 29)

A display device according to claim 29, wherein the first substrate is glass substrate.

### Claim 32 (depends on 29)

A display device according to claim 29, wherein the second substrate is glass substrate.

### Claim 33

A display device comprising:
a first substrate comprising:
a drive circuit, a plurality of first wirings electrically connected to the drive circuit,
a plurality of second wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of third wirings electrically connected to the pixel portion,
a plurality of second electrode pads, and
a plurality of fourth wirings,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of third wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and third wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein each of the plurality of second wirings is electrically connected to a corresponding one of the plurality of fourth wirings, and
wherein an area of each of the plurality of first electrode pads is larger than an area of the corresponding one of the plurality of second electrode pads.

### Claim 34 (depends on 33)

A display device according to claim 33, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 35 (depends on 33)

A display device according to claim 33, wherein the first substrate is glass substrate.

### Claim 36 (depends on 33)

A display device according to claim 33, wherein the second substrate is glass substrate.

### Claim 37

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit,
a plurality of second wirings electrically connected to the drive circuit, and
a plurality of first electrode pads, and
a second substrate comprising:
a pixel portion comprising a pixel electrode and a switching thin film transistor,
a plurality of third wirings electrically connected to the pixel portion,
a plurality of second electrode pads, and
a plurality of fourth wirings,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of third wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and third wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein a center of each of the plurality of first electrode pads is shifted from a center of the corresponding one of the plurality of second electrode pads,
wherein each of the plurality of second wirings is electrically connected to a corresponding one of the plurality of fourth wirings, and
wherein an area of each of the plurality of first electrode pads is larger than an area of the corresponding one of the plurality of second electrode pads.

### Claim 38 (depends on 37)

A display device according to claim 37, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 39 (depends on 37)

A display device according to claim 37, wherein the first substrate is glass substrate.

### Claim 40 (depends on 37)

A display device according to claim 37, wherein the second substrate is glass substrate.

### Claim 41

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein the pixel portion comprises a plurality of pixel thin film transistors,
wherein each of the plurality of pixel thin film transistors comprises an amorphous silicon film electrically connected to corresponding one of the plurality of second wirings,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction, and
wherein an area of each of the plurality of first electrode pads is larger than an area of the corresponding one of the plurality of second electrode pads.

### Claim 42 (depends on 41)

A display device according to claim 41, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 43 (depends on 41)

A display device according to claim 41, wherein the first substrate is glass substrate.

### Claim 44 (depends on 41)

A display device according to claim 41, wherein the second substrate is glass substrate.

### Claim 45

A display device comprising:
a first substrate comprising:
a drive circuit,
a plurality of first wirings electrically connected to the drive circuit, and
a plurality of first electrode pads; and
a second substrate comprising:
a pixel portion comprising a pixel electrode,
a plurality of second wirings electrically connected to the pixel portion, and
a plurality of second electrode pads,
wherein the first substrate is fixed on the second substrate and has a first side in a X-direction and a second side in a Y-direction, and all portions of the first substrate overlap with the second substrate,
wherein the first side is longer than the second side,
wherein the pixel portion comprises a plurality of pixel thin film transistors,
wherein each of the plurality of pixel thin film transistors comprises an amorphous silicon film electrically connected to corresponding one of the plurality of second wirings,
wherein each of the plurality of first wirings is electrically connected to a corresponding one of the plurality of second wirings through a conductive member,
wherein each of the plurality of first and second electrode pads is arranged in the corresponding one of the plurality of first and second wirings, respectively,
wherein each of the plurality of second electrode pads does not overlap with a nearest one of the plurality of second electrode pads in the X-direction,
wherein a center of each of the plurality of first electrode pads is shifted from a center of the corresponding one of the plurality of second electrode pads, and
wherein an area of each of the plurality of first electrode pads is larger than an area of the corresponding one of the plurality of second electrode pads.

### Claim 46 (depends on 45)

A display device according to claim 45, wherein each of the plurality of first and second electrode pads is rectangular.

### Claim 47 (depends on 45)

A display device according to claim 45, wherein the first substrate is glass substrate.

### Claim 48 (depends on 45)

A display device according to claim 45, wherein the second substrate is glass substrate.