Electro-optical device having a frame including a conduction part and a resin part

• US 8,797,473 B2
• Filed: 07/24/2008
• Issued: 08/05/2014
• Est. Priority Date: 09/12/2007
• Status: Active Grant

• Current Assignee: Japan Display West Incorporated (Japan Display Incorporated)
• Original Assignee: Japan Display West Incorporated (Japan Display Incorporated)
• Inventors: Takabayashi, Kazunori
• Primary Examiner(s): Nguyen, Lauren
• Application Number:
  US12/179,229
• Publication Number:
  US 20090067112A1
• Time in Patent Office: 2,203 Days
• Field of Search: 349/149, 349 58- 60
• US Class Current: 349/58
• CPC Class Codes: G02F 1/13306 Circuit arrangements or driving methods for the control of single liquid crystal cells G02F1/132, G02F1/133382 take precedence
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133314 Back frames
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/133334 Electromagnetic shields
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: G02F 1/136204 Arrangements to prevent high voltage or static electricity failures
• CPC Class Codes: G02F 2202/22 Antistatic materials or arrangements

Abstract

An electro-optical device includes a frame including a conduction part and a resin part, an electro-optical panel that is housed in the inner side of the resin part, and an exposure part that is formed by exposing the conduction part from the resin part. The exposure part is disposed to face at least a part of an end face of the electro-optical panel or protrude from a surface of the electro-optical panel over the end face.

Claims

1. An electro-optical device comprising:

a frame including a conduction part and a resin part;

an electro-optical panel that is housed in an inner side of the resin part; and

an exposure part that is formed by exposing the conduction part from the resin part, wherein the exposure part is disposed to face at least a part of an end face of the electro-optical panel and protrude from a viewing surface of the electro-optical panel over the end face,

wherein the resin portion does not extend between the end face of the electro-optical panel and the exposure part so that a gap is formed between the end face of the electro-optical panel and the exposure part,

wherein in the resin part of the frame, corner parts are located in each of a plurality of corners of the frame, and the end faces of the electro-optical panel contact the corner parts and do not contact the conduction part,

wherein the conduction part is a metal plate disposed at least along the end face of the electro-optical panel and being integrally formed with the resin part, the metal plate including at least one bend that is formed by bending the metal plate inward or outward relative to the electro-optical panel and a bended end of the metal plate is embedded in the resin part, and

wherein a top of the bend portion is higher than a top surface of the electro-optical panel

wherein the electro-optical panel includes a polarizing plate on a viewing surface side, and wherein the top surface of the electro-optical panel is a top surface of the polarizing plate;

wherein an outermost part of the frame is a portion of the resin part that surrounds the conduction part, and wherein the bend of the conduction part is bent outwards relative to the electro-optical panel, and the bended end of the metal plate that includes the bend is embedded in the portion of the resin part that surrounds the conduction part.

2. The electro-optical device according to claim 1, wherein the conduction part is exposed in an edge of the frame.

3. The electro-optical device according to claim 1, further comprising:

a driving circuit that drives the electro-optical panel; and

a conductive protection member that covers at least a part of the driving circuit, wherein the protection member is connected to the conduction part of the frame.

4. An electronic apparatus comprising the electro-optical device according to claim 1.

5. The electronic apparatus according to claim 4, further comprising a casing that houses the electro-optical device, wherein the electro-optical device is brought into contact with the casing through the conduction part.

6. The electro-optical device according to claim 1,

wherein the edge of the metal plate, outside of the exposure part, is bent toward the viewing surface of the electro-optical panel to a position lower than the viewing surface of the electro-optical panel.

7. The electro-optical device according to claim 6, further comprising:

a driving circuit disposed in an extension part of the electro-optical panel; and

a conduction sheet that covers the driving circuit and is electrically connected to the edge of the metal plate bent toward the viewing surface of the electro-optical panel to the position lower than the viewing surface of the electro-optical panel.

8. The electro-optical device according to claim 1, wherein the frame further includes a second side part that is formed by bending the metal plate a second time away from the electro-optical panel side.

9. The electro-optical device according to claim 8, wherein an upper edge of the bent portion between the side part and the second side part is flush with an upper surface of the resin part.

10. The electro-optical device according to claim 1,

wherein the metal plate has a bottom part and four sides that rise from the bottom part, and

wherein each of three of the sides include the exposure part, and the fourth side does not protrude from the viewing surface of the electro-optical panel.

11. The electro-optical device according to claim 10, wherein a substrate of the electro-optical panel includes an extension part having a driving circuit mounted thereon.

12. The electro-optical device according to claim 11, wherein a second conductive part connects an upper edge of the fourth side and the driving circuit.

13. The electro-optical device according to claim 1,

wherein the gap is filled with a conduction member having an electrical conductivity higher than an electrical conductivity of a substrate of the electro-optical panel having the viewing surface.

14. The electro-optical device according to claim 1,

wherein the conduction part is electrically connected to a driving IC via a conduction sheet.