Display driver integrated circuit module

• US 6,456,353 B1
• Filed: 11/04/1999
• Issued: 09/24/2002
• Est. Priority Date: 11/04/1999
• Status: Expired due to Term

• Current Assignee: InnoLux Corporation
• Original Assignee: Chi Mei Optoelectronics (InnoLux Corporation)
• Inventors: Chen, Yen-Chen
• Primary Examiner(s): Parker, Kenneth
• Assistant Examiner(s): Chung, David
• Application Number:
  US09/434,860
• Time in Patent Office: 1,055 Days
• Field of Search: 349/149, 349/150, 349/151, 349/152
• US Class Current: 349/150
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels

Abstract

Driver integrated circuits (ICs) are mounted on a flexible base film and electrically connected to it to form a display driver IC module. The display driver IC module is applicable to a liquid crystal module assembly. The flexible base film has an interconnecting wiring fabricated on it. Each driver IC is mounted to the flexible base film, and having a plurality of input/output pads electrically connected to the interconnecting wiring. Each driver IC is electrically connected to the corresponding input/output pads of the other driver ICs through the interconnecting wiring on the flexible base film.

Claims

1. A display driver integrated circuit module, comprising:

a flexible base film having non-intersecting interconnecting wiring with a plurality of signal input terminals and a plurality of signal output terminals, where the signal output terminals are electrically connected to a liquid crystal panel; and

a plurality of driver integrated circuits mounted on the flexible base film where each of the driver integrated circuit has a plurality of input/output pads electrically connected to the non-intersecting interconnecting wiring and the input pads electrically connected to the corresponding input pads of another driver integrated circuit,

wherein the input pads are alternately formed on opposite sides of the driver integrated circuit with input pads on one side of the driver integrated circuit electrically connected to the corresponding input pads on the same side of another driver integrated circuit by the non-intersecting interconnecting wiring on the flexible base film.

2. The display driver integrated circuit module of claim 1, wherein the flexible base film includes a flexible print circuit board (FPCB).

3. The display driver integrated circuit module of claim 1, wherein the flexible base film includes a micro flex (MF).

4. The display driver integrated circuit module of claim 1, wherein a material of the flexible base film includes polyimide.

5. A liquid crystal module, comprising:

a display driver integrated circuit module, further comprising;

a flexible base film having non-intersecting interconnecting wiring with a plurality of signal input terminals and a plurality of signal output terminals;

a plurality of driver integrated circuits mounted on the flexible base film where each of the driver integrated circuit has a plurality of input/output pads electrically connected to the non-intersecting interconnecting wiring and the input pads electrically connected to the corresponding input pads of another driver integrated circuit,

wherein the input pads are alternately formed on opposite sides of the driver integrated circuit with input pads on one side of the driver integrated circuit electrically connected to the corresponding input pads on the same side of another driver integrated circuit by the non-intersecting interconnecting wiring on the flexible base film; and

a liquid crystal panel where the signal output terminals of the flexible base film are electrically connected to an edge of the liquid crystal panel.

6. The liquid crystal module of claim 5, wherein the flexible base film includes a flexible printed circuit board (FPCB).

7. The liquid crystal module of claim 5, wherein the flexible base film includes a micro flex (MF).

8. The liquid crystal module of claim 5, wherein a material of the flexible base film includes polyimide.

9. The liquid crystal module of claim 5, wherein a connecting material is disposed between the signal output terminals and the liquid crystal panel for electrical connection establishment.

10. The liquid crystal module of claim 9, wherein the connecting material includes an anisotropic conductive film.

11. The liquid crystal module of claim 5, wherein a backlight is included and located on a surface of the liquid crystal panel.

12. A display driver integrated circuit module, comprising:

a flexible base film having non-intersecting interconnecting wiring with a plurality of signal input terminals and a plurality of signal output terminals, where the signal output terminals are electrically connected to a liquid crystal panel; and

a plurality of driver integrated circuits mounted on the flexible base film, wherein each of the driver integrated circuit has a plurality of input/output pads electrically connected to the nonintersecting interconnecting wiring, the input pads electrically connected to the corresponding input pads of another driver integrated circuit, and inner-connecting wiring formed on the driver integrated circuits, which electrically connect the input pads of the driver integrated circuit to the corresponding input pads of the same driver integrated circuit.

13. A liquid crystal module, comprising:

a display driver integrated circuit module, further comprising;

a flexible base film having non-intersecting interconnecting wiring with a plurality of signal input terminals and a plurality of signal output terminals;

a plurality of driver integrated circuits mounted on the flexible base film, wherein each of the driver integrated circuit has a plurality of imput/output pads electrically connected to the non-intersecting interconnecting wiring, the input pads electrically connected to the corresponding input pads of another driver integrated circuit, and inner-connecting wiring formed on the driver integrated circuits, which electrically connect the input pads of the driver integrated circuit to the corresponding input pads of the same driver integrated circuit; and

a liquid crystal panel where the signal output terminals of the flexible base film are electrically connected to an edge of the liquid crystal panel.