OLED display

• US 9,859,341 B2
• Filed: 07/05/2016
• Issued: 01/02/2018
• Est. Priority Date: 03/04/2013
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Huang, Hao-Jung, Kang, Chia-Pin, Lin, Che-Wei, Chou, Hao-Yu
• Primary Examiner(s): Tran, Dzung
• Application Number:
  US15/202,030
• Publication Number:
  US 20160315126A1
• Time in Patent Office: 546 Days
• Field of Search: 257 40, 257 89, 257 98
• CPC Class Codes: H10K 10/466 Lateral bottom-gate IGFETs comprising only a single gate
• CPC Class Codes: H10K 50/00 Organic light-emitting devices integrated devices or assemblies of multiple devices H10K59/00, H10K65/00; organic semiconductor lasers H01S5/36
• CPC Class Codes: H10K 50/13 comprising stacked EL layers within one EL unit
• CPC Class Codes: H10K 59/121 characterised by the geometry or disposition of pixel elements
• CPC Class Codes: H10K 59/32 Stacked devices having two or more layers, each emitting at different wavelengths
• CPC Class Codes: H10K 59/352 the areas of the RGB subpixels being different
• CPC Class Codes: H10K 59/353 characterised by the geometrical arrangement of the RGB subpixels
• CPC Class Codes: H10K 71/164 using vacuum deposition
• CPC Class Codes: H10K 71/166 using selective deposition, e.g. using a mask
• CPC Class Codes: H10K 85/655 comprising only sulfur as heteroatom

Abstract

An OLED display is disclosed, which includes a substrate and a plurality of pixel groups arranged on the substrate. Each pixel group includes a first, a second, a third and a fourth sub-pixel. Arrangements of the first, second, third and fourth sub-pixels in two neighboring pixel groups are symmetrical with each other. In addition, the distance between the third sub-pixels and the distance between the fourth sub-pixels in two neighboring pixel group are greater than the distance between the first sub-pixels in the two neighboring pixel group.

Claims

1. An OLED display, comprising:

a substrate;

a plurality of pixel groups, arranged in a number of directions on the substrate, wherein each of the plurality of pixel groups comprises;

two first sub-pixels;

a second sub-pixel; and

a third sub-pixel;

wherein the first, second and third sub-pixels in a first pixel group and a second pixel group of the plurality of pixel groups are symmetrical with each other with respect to a first reference line, and

wherein a first distance between the two adjacent first sub-pixels in the first and the second pixel groups is different from a second distance between the second sub-pixels in the first and the second pixel groups;

wherein a second reference line is defined to be orthogonal with the first reference line and between the second sub-pixel and the third sub-pixel in the first pixel group, and no sub-pixel is disposed between the second sub-pixel and the third sub-pixel in the first pixel group;

wherein a third distance between the second sub-pixel in the first pixel group and the second reference line is greater than a fourth distance between one of the first sub-pixels in the first pixel group and the second reference line.

2. The OLED display as claimed in claim 1, wherein the first pixel group is adjacent to the second pixel group.

3. The OLED display as claimed in claim 1, wherein along the first reference line, colors of the first and the second pixel groups are symmetrical with each other.

4. The OLED display as claimed in claim 1, wherein the first distance is between a first boundary of the first sub-pixel in the first pixel group and a second boundary of the first sub-pixel in the second pixel group, and the second distance is between a third boundary of the second sub-pixel in the first pixel group and a fourth boundary of the second sub-pixel in the second pixel group.

5. The OLED display as claimed in claim 4, wherein the third distance is between the third boundary and the second reference line, a fourth distance is between the first boundary and the second reference line.

6. The OLED display as claimed in claim 5, wherein regions inside the first, second, third and fourth boundaries are capable of emitting light.

7. The OLED display as claimed in claim 1, wherein the second reference line is separated from the two first pixels in the first pixel group by a distance.

8. The OLED display as claimed in claim 1, wherein a fifth distance between the third sub-pixels in the first and the second pixel groups is the same as the second distance.

9. The OLED display as claimed in claim 1, wherein a sixth distance between the third sub-pixel in the first pixel group and the second reference line is greater than the fourth distance.