IP Library Granted Patent US 7,554,643
Granted Patent B2
US 7,554,643 · App. 11/515,929 · Granted Jun 30, 2009

Electro-optical device, electronic apparatus, and interface board

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Quick Facts
Patent No.
US 7,554,643
App. No.
11/515,929
Granted
Jun 30, 2009
Kind
B2
Abstract

An electro-optical device includes an electro-optical panel, and an interface board through which an image display signal is supplied to the electro-optical panel. The interface board includes a flexible film board, a plurality of terminals that are disposed on the film board, a plurality of wiring lines that are disposed on one surface of the film board and that are electrically connected to the terminals, respectively, and a first conductive member that is formed on the other surface of the film board and that is grounded. The first conductive member overlaps at least one of the wiring lines when the film board is seen in plan view, and the first conductive member is formed along the one wiring line.

Claims (26)

1. An electro-optical device, comprising:

an electro-optical panel; and

an interface board through which an image display signal for displaying an image to the electro-optical panel,

the interface board including:

a base film;

a plurality of wiring lines that are disposed on one of the surfaces of the base film and that includes a wiring line for performing data transmission;

a terminal connected to the wiring line for performing data transmission; and

a conductive member that is formed on the other surface of the base film and that overlaps the wiring line for performing the data transmission in plan view, the conductive member being formed along the wiring line for performing data transmission,

wherein the terminal is bent along an end face of the base films from the one of the surfaces of the base film, and

wherein the conductive member is grounded and being inwardly offset from the end face of the base film, and

wherein the terminal is electrically connected to a terminal formed on the electro-optical panel through an anisotropic conductive film.

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

wherein a width of the one of the conductive member is at least three times as that of the wiring line for performing data transmission.

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

wherein the wiring line for performing data transmission is a first wiring line that transmits a first signal,

further comprising second wiring line for performing data transmission that transmits a second which is an inversion signal of the first signal.

4. An electronic apparatus, comprising a display unit being the electro-optical device according to claim 1 .

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

a plurality of external connecting wiring lines formed on the electro-optical panel; and

a driver IC connected to the a plurality of external connecting wiring lines,

wherein the plurality of external connecting wiring lines includes external connecting lines connected to the first and second wiring lines, respectively.

6. The electro-optical device according to claim 5 , further comprising a resistor provided between the external connecting liens connected to first and second wiring lines, respectively.

7. The electro-optical devices according to claim 1 ,

wherein the conductive member is offset from the end face of the base film between 50 μm and 300 μm.

8. The electro-optical device according to claim 1 , wherein the wiring line for performing data transmission is formed on the other surface of the base film via a through hole formed to the base film, further comprising another conductive member that is formed on the one of the surface of the base film and that overlaps the wiring line of the other surface of the base film in plain view,

the other conductive member being formed along the wiring line of the other surface of the base film.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072398/0001 →
MERGER AND CHANGE OF NAME Recorded Jul 24, 2025
From: JAPAN DISPLAY EAST INC.; JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 071935/0063 →