DIVIDING PIXELS BETWEEN CHIPLETS IN DISPLAY DEVICE

• US 20100207852A1
• Filed: 02/13/2009
• Published: 08/19/2010
• Est. Priority Date: 02/13/2009
• Status: Active Grant

• Current Assignee: Global OLED Technology LLC (LG Display Co., Ltd.)
• Original Assignee: Global OLED Technology LLC (LG Display Co., Ltd.)
• Inventors: Cok, Ronald S.
• Granted Patent: US 8,619,008 B2
• Time in Patent Office: Days
• US Class Current: 345/83
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• 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 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2320/0242 Compensation of deficiencies in the appearance of colours
• 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 3/2088 with use of a plurality of processors, each processor controlling a number of individual elements of the matrix
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: H10K 59/129 Chiplets
• CPC Class Codes: H10K 59/351 comprising more than three subpixels, e.g. red-green-blue-white [RGBW]

Abstract

A display device includes a substrate, a plurality of pixels formed over the substrate, each pixel including two or more sub-pixels, the plurality of pixels defining a display area, and a plurality of chiplets located over the substrate in the display area, each chiplet controlling sub-pixels of at least two adjacent pixels.

Claims

1. A display device, comprising:

a) a substrate;

b) a plurality of pixels formed over the substrate, each pixel including two or more sub-pixels, the plurality of pixels defining a display area; and

c) a plurality of chiplets located over the substrate in the display area, each chiplet controlling sub-pixels of at least two adjacent pixels.

2. The display device of claim 1, wherein each pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel.

3. The display device of claim 1, wherein each pixel includes a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.

4. The display device of claim 1, wherein each pixel includes four sub-pixels and the sub-pixels of each pixel are arranged in a two-by-two configuration.

5. The display device of claim 1, wherein each pixel includes four sub-pixels and the sub-pixels of each pixel are arranged in a stripe configuration.

6. The display device of claim 1, wherein each pixel includes three sub-pixels and the sub-pixels of each pixel are arranged in a stripe configuration.

7. The display device of claim 1, wherein the sub-pixels are formed in an array having rows or columns, the chiplets are located between spaced-apart sub-pixels in at least one, but not all rows or columns, and the spacing between sub-pixels spaced apart by the chiplets is greater than the spacing between sub-pixels that are not spaced apart by the chiplets.

8. The display device of claim 1, further comprising a plurality of conductors formed over the substrate and wherein the sub-pixels are formed in an array having rows and columns, the conductors are located between spaced-apart sub-pixels in at least one, but not all rows or columns, and the spacing between sub-pixels spaced apart by the conductors is greater than the spacing between sub-pixels that are not spaced apart by the conductors.

9. The display device of claim 1, wherein a spacing between the center of each adjacent pixel is the same in at least one direction.

10. The display device of claim 9, wherein the spacing between the center of each adjacent pixel is the same in at least two different directions.

11. The display device of claim 9, wherein the size of a pixel is different from the size of a neighboring pixel.

12. The display device of claim 1, wherein chiplets are disposed between sub-pixels of a pixel.

13. The display device of claim 1, wherein chiplets are disposed between pixels.

14. The display device of claim 1, further comprising a plurality of conductors formed over the substrate and wherein conductors are disposed between sub-pixels of a pixel.

15. The display device of claim 14, wherein both chiplets and conductors are disposed between sub-pixels of a pixel.

16. The display device of claim 1, wherein the size of a pixel controlled by a plurality of chiplets is smaller than the size of a pixel controlled by a single chiplet.

17. The display device of claim 1, wherein a pixel is controlled by two chiplets.

18. The display device of claim 1, wherein a pixel is controlled by four chiplets.