DISPLAY APPARATUS

• US 20070205976A1
• Filed: 03/05/2007
• Published: 09/06/2007
• Est. Priority Date: 03/06/2006
• Status: Active Grant

• Current Assignee: HannStar Display Corporation
• Original Assignee: NEC Corporation, NEC LCD Technologies Limited (Tianma Microelectronics Company Limited)
• Inventors: Haga, Hiroshi, Takatori, Kenichi, Asada, Hideki
• Granted Patent: US 7,859,525 B2
• Time in Patent Office: Days
• US Class Current: 345/100
• CPC Class Codes: G09G 2300/0408 Integration of the drivers onto the display substrate
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2310/027 Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/3685 Details of drivers for data electrodes

Abstract

Provided is a display apparatus capable of reducing the scale of a drive circuit and decreasing the frame. A display area in which pixels are provided in matrix, a scanning line drive circuit for driving scanning lines, and a signal line drive circuit for driving signal lines are provided on a support substrate. The pixel within the display area is constituted with a plurality of dots. Each dot corresponds to a color filter of a certain color. The dot is in a laterally long shape, i.e. in a shape extending in a direction along the scanning lines. In other words, each dot is in a shape extending in parallel with the longitudinal direction of the signal line drive circuit. The color filters are of lateral stripe type, for example.

Claims

1. A display apparatus, comprising:

a display part where pixels, each being constituted with a single or a plurality of dots, are arranged in matrix on a support substrate in a first direction and a second direction;

a first circuit provided on outer side of the first direction of the display part on the support substrate; and

a second circuit whose scale is lager than that of the first circuit, which is provided on outer side of the second direction of the display part on the support substrate, wherein

the dot is in a shape that is longer in the first direction than the second direction.

2. The display apparatus as claimed in claim 1, wherein at least one of the plurality of dots has a color filter.

3. The display apparatus as claimed in claim 2, wherein the color filter corresponds to one of a plurality of colors by each of the dots.

4. The display apparatus as claimed in claim 3, wherein the color filter corresponds to each dot of the same color in a same column of the first direction.

5. The display apparatus as claimed in claim 1, wherein:

the second circuit is constituted with a plurality of circuit elements, each having a circuit part, a wiring part, and a space part in the first direction, which are arranged in the first direction at a constant repeated pitch; and

a following relation is satisfied where, in one of the circuit elements, a proportion of the wiring part and the space part occupying the repeated pitch is c, a ratio of length in the first direction of the circuit part to length of the second direction is b, and number of the plurality of colors is k.

b+c>

1/k

6. The display apparatus as claimed in claim 1, wherein at least one of the plurality of dots comprises a light-emitting element.

7. The display apparatus as claimed in claim 6, wherein the light-emitting element corresponds to one of the plurality of luminance colors by each of the dots.

8. The display apparatus as claimed in claim 7, wherein the light-emitting element corresponds to each dot of the same color in a same column of the first direction.

9. The display apparatus as claimed in claim 1, wherein:

the second circuit is constituted with a plurality of circuit elements, each having a circuit part, a wiring part, and a space part in the first direction, which are arranged in the first direction at a constant repeated pitch; and

when at least one of the plurality of dots comprises the light-emitting element, a following relation is satisfied where, in one of the circuit elements, a proportion of the wiring part and the space part occupying the repeated pitch is c, a ratio of length in the first direction of the circuit part to length of the second direction is b, and number of the plurality of luminance colors is k.

b+c>

1/k

10. The display apparatus as claimed in claim 6, wherein the light-emitting element is constituted with a fluorescent element, an electroluminescence element, a stress-induced light-emitting element, or a photonic crystal structure.

11. The display apparatus as claimed in claim 1, wherein:

the display part comprises a scanning line; and

the first circuit includes a scanning line drive circuit for driving the scanning line.

12. The display apparatus as claimed in claim 1, wherein:

the display part comprises a signal line; and

the second circuit includes a signal line drive circuit for driving the signal line.

13. The display apparatus as claimed in claim 12, wherein the signal line drive circuit is a circuit for performing parallel data processing by expanding a bus width.

14. The display apparatus as claimed in claim 1, wherein a frame memory, a timing controller, or a serial interface is provided on the support substrate.

15. The display apparatus as claimed in claim 1, wherein the support substrate is constituted with a glass substrate, a quartz substrate, a plastic substrate, or a silicon substrate.

16. The display apparatus as claimed in claim 1, wherein at least either the first circuit or the second circuit is constituted with amorphous silicon, polysilicon, single-crystal silicon, an organic semiconductor, or an oxide semiconductor.

17. The display apparatus as claimed in any one of claims 1-16, wherein the display part has a non-rectangular external shape.

18. A near-eye device using the display apparatus claimed in any one of claims 1-17.

19. A portable terminal using the display apparatus claimed in any one of claims 1-17.