Display apparatus

• US 20070013626A1
• Filed: 07/07/2006
• Published: 01/18/2007
• Est. Priority Date: 07/07/2005
• Status: Abandoned Application

• Current Assignee: Citizen Holdings Co., Ltd.
• Original Assignee: Citizen Watch Co Limited (Citizen Electronics Company Limited)
• Inventors: Akiyama, Takashi, Ando, Tomohiro, Takahashi, Rintarou, Imoto, Satoshi
• Application Number:
  US11/482,060
• Publication Number:
  US 20070013626A1
• Time in Patent Office: Days
• US Class Current: 345/88
• CPC Class Codes: G09G 3/3406 Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336

Abstract

In a display apparatus, the number of wiring patterns to be routed on an interface board (FPC) connected to a display panel is reduced, thus reducing the size of the interface board and thereby reducing the overall size of the display apparatus. The display apparatus includes a display panel which displays a plurality of color component images by sequentially switching from one image to another, a panel driving section which outputs a timing signal and a panel driving signal for driving the display panel, a light source which emits a plurality of colored lights, and a light source driving section which outputs a driving signal for driving the light source in synchronism with the timing signal.

Claims

1. A field-sequential type display apparatus comprising:

a liquid crystal display panel which displays red, green, and blue component images by sequentially switching from one image to another;

a panel driving section which outputs a timing signal and a panel driving signal for driving said liquid crystal display panel;

a light source having a red LED, a green LED, and a blue LED;

a setting section for setting the brightness of each of said red, green, and blue LEDs;

an adjusting section which, based on the setting made by said setting section, outputs adjusting data for adjusting the brightness of each of said red, green, and blue LEDs; and

a light source driving section which makes, based on said adjusting data, said red LED, said green LED, and said blue LED emit by sequentially switching from one LED to another in synchronism with said timing signal.

2. The display apparatus according to claim 1, wherein said setting section has a plurality of conductive pattern circuits, and said setting in said setting section is done by making non-conductive at least one conductive pattern circuit selected from among said plurality of conductive pattern circuits.

3. The display apparatus according to claim 1, wherein said setting section has a plurality of non-conductive pattern circuits, and said setting in said setting section is done by making conductive at least one non-conductive pattern circuit selected from among said plurality of non-conductive pattern circuits.

4. The display apparatus according to claim 1, wherein said setting section has a memory, and said setting in said setting section is done by writing to said memory.

5. The display apparatus according to claim 1, further comprising an external circuit connecting board for transmitting display data to said panel driving section.

6. The display apparatus according to claim 5, wherein said light source, said setting section, and said light source driving section are provided on said external circuit connecting board.

7. The display apparatus according to claim 5, wherein said external circuit connecting board comprises a first FPC board and a second FPC board, and wherein said light source and said light source driving section are provided on said first FPC board, while said setting section is provided on said second FPC board.

8. The display apparatus according to claim 7, wherein said first FPC board and said second FPC board are formed integrally.

9. The display apparatus according to claim 1, wherein said panel driving section and said adjusting section are provided within the same IC.

10. The display apparatus according to claim 1, wherein said panel driving section, said light source driving section, and said adjusting section are provided within the same IC.

11. The display apparatus according to claim 1, wherein said panel driving section, said adjusting section, and said setting section are provided within the same IC.

12. The display apparatus according to claim 1, wherein said panel driving section, said light source driving section, said adjusting section, and said setting section are provided within the same IC.

13. A display apparatus comprising:

a display panel which displays a plurality of color component images by sequentially switching from one image to another;

a panel driving section which outputs a timing signal and a panel driving signal for driving said display panel;

a light source which emits a plurality of colored lights; and

a light source driving section which outputs a driving signal for driving said light source in synchronism with said timing signal.

14. A display apparatus comprising:

a panel driving section which outputs a panel driving signal for driving a display panel;

a light source which emits a plurality of colored lights; and

an adjusting section which outputs adjusting data for adjusting the brightness of each of said plurality of colored lights to be emitted from said light source, wherein

said panel driving section and said adjusting section are provided within the same IC.

15. The display apparatus according to claim 14, further comprising a light source driving section which, based on said adjusting data, outputs a driving signal for driving said light source, and wherein

said panel driving section, said light source driving section, and said adjusting section are provided within the same IC.

16. The display apparatus according to claim 14, further comprising a setting section for setting the brightness of each of said plurality of colored lights to be emitted from said light source, and wherein

based on the setting made by said setting section, said adjusting section outputs the adjusting data for adjusting the brightness of each of said plurality of colored lights to be emitted from said light source, and

said panel driving section, said setting section, and said adjusting section are provided within the same IC.

17. The display apparatus according to claim 14, further comprising:

a setting section for setting the brightness of each of said plurality of colored lights to be emitted from said light source; and

a light source driving section which, based on said adjusting data, outputs a driving signal for driving said light source, and wherein

based on the setting made by said setting section, said adjusting section outputs the adjusting data for adjusting the brightness of each of said plurality of colored lights to be emitted from said light source, and

said panel driving section, said light source driving section, said setting section, and said adjusting section are provided within the same IC.

18. A display apparatus comprising:

a panel driving section which outputs a timing signal and a panel driving signal for driving a display panel;

a light source which emits a plurality of colored lights;

an adjusting section which outputs adjusting data for adjusting the brightness of each of said plurality of colored lights to be emitted from said light source; and

a light source driving section which outputs a driving signal for driving said light source in synchronism with said timing signal, wherein

said panel driving section and said adjusting section are provided within the same IC.