ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS

• US 20140125572A1
• Filed: 01/14/2014
• Published: 05/08/2014
• Est. Priority Date: 11/02/2009
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: ITO, Akihiko
• Granted Patent: US 9,093,016 B2
• Time in Patent Office: Days
• US Class Current: 345/88
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0809 Several active elements per pixel in active matrix panels
• CPC Class Codes: G09G 2320/0242 Compensation of deficiencies in the appearance of colours
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 2370/08 Details of image data interface between the display device controller and the data line driver circuit
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/36 using liquid crystals
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 3/3677 suitable for active matrices only
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

An electro-optical device includes, on a substrate, three sub-pixels, three sampling switches, three data lines, three image signal lines, and three lead wiring lines. The three sub-pixels correspond to red, green and blue, respectively. The three sub-pixels are included in a unit pixel. The three sampling switches correspond to the three sub-pixels, respectively. The three data lines electrically connect the three sub-pixels and the three sampling switches with each other, respectively. The three image signal lines, which are provided on a side opposite to the three sub-pixels with respect to the three sampling switches, correspond to the three sampling switches, respectively. The three lead wiring lines electrically connect the three sampling switches and the three image signal lines with each other, respectively. Among the three sampling switches, a sampling switch corresponding to green is disposed close to the three image signal lines compared to other two sampling switches.

Claims

1. An electro-optical device, comprising:

three sub-pixels respectively corresponding to red, green and blue, the three sub-pixels included in a unit pixel;

three sampling switches respectively corresponding to the three sub-pixels;

three data lines respectively electrically connecting the three sub-pixels and the three sampling switches with each other;

three image signal lines provided on a side opposite to the three sub-pixels with respect to the three sampling switches, the three image signal lines respectively corresponding to the three sampling switches; and

three lead wiring lines respectively electrically connecting the three sampling switches and the three image signal lines with each other;

wherein, among the three sampling switches, a sampling switch corresponding to the green is disposed close to the three image signal lines compared to other two sampling switches.

2. The electro-optical device according to claim 1, wherein, among the three sampling switches, a sampling switch corresponding to the blue is disposed so as to be distant from the image signal lines compared to a sampling switch corresponding to the red.

3. The electro-optical device according to claim 1, wherein the three sampling switches each include a plurality of sampling switches, and are arranged in one direction intersecting the other direction along which the three data lines are arranged, and arranged so as to be displaced from one another in the other direction.

4. The electro-optical device according to claim 1, wherein, among the three lead wiring lines, a lead wiring line corresponding to one of the three image signal lines is electrically connected to the corresponding one of the three image signal lines, the lead wiring line including a plurality of lead wiring lines.

5. The electro-optical device according to claim 1, further comprising a plurality of external circuit connection terminals,

wherein the three image signal lines are electrically connected respectively to the plurality of external circuit connection terminals on a side on which the three image signal lines are not connected to the three lead wiring lines.

6. The electro-optical device according to claim 5, further comprising a peripheral driving circuit provided so as to overlap a position of linearly connecting the plurality of external circuit connection terminals and the three sampling switches with each other,

wherein the three image signal lines are provided so as to detour the peripheral driving circuit.

7. An electronic apparatus comprising the electro-optical device according to any one of claims 1 to 6.