IP Library Granted Patent US 10,490,604
Granted Patent B2
US 10,490,604 · App. 14/690,673 · Granted Nov 26, 2019

Pixel array, electro-optic device, and electric apparatus each having one subpixel with a center of gravity closer to a center of gravity of pixel than other subpixels

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,490,604
App. No.
14/690,673
Granted
Nov 26, 2019
Kind
B2
Abstract

There are provided a pixel array, an electro-optic device, and an electric apparatus. A pixel array includes plural pixels each having a rectangular shape and including a first-colored sub-pixel of a first color being the maximum in relative luminosity, a second-colored sub-pixel, and a third-colored sub-pixel of a third color being the minimum in relative luminosity. The third-colored sub-pixel is greater in size than each of the first-colored sub-pixel and the second-colored sub-pixel, and is arranged next to the first-colored sub-pixel and the second-colored sub-pixel. The center of gravity of the first-colored sub-pixel is located nearer to the center of gravity of the pixel than that of the second-colored sub-pixels, and/or the center of gravity of a part of the third-colored sub-pixel at the second-colored-sub-pixel side is located at a shorter distance to the center of gravity of the pixel than that of the other part of the third-colored sub-pixel.

Claims (49)

1. A pixel array comprising:

a plurality of main pixels, each of the main pixels including a first sub-pixel, a second sub-pixel, and a third sub-pixel

wherein the plurality of main pixels are arrayed in a first direction and in a second direction different from the first direction,

the first sub-pixel and the second sub-pixel are arranged alternately along the first direction,

the third sub-pixel is arranged next to the first and second sub-pixels in the second direction,

each of the main pixels has a main center of gravity defined as an intersection of two diagonal lines of a minimum rectangle surrounding the main pixel,

the first sub-pixel has a first center of gravity defined as an intersection of two diagonal lines of a minimum rectangle surrounding the first sub-pixel,

the second sub-pixel has a second center of gravity defined as an intersection of two diagonal lines of a minimum rectangle surrounding the second sub-pixel,

the first sub-pixel has at least a first side, a second side, and a third side, the first and second sides of the first sub-pixel being adjacent to each other, the first side and the second side of the first sub-pixel each corresponding to a first side and a second side of the minimum rectangle surrounding the first sub-pixel, and the third side of the first sub-pixel intersecting with a third side and a fourth side of the minimum rectangle surrounding the first sub-pixel,

the first center of gravity is located nearer to the main center of gravity than the second center of gravity, and

the first sub-pixel emits light of a green color, the second sub-pixel emits light of a red color, and the third sub-pixel emits light of a blue color.

2. The pixel array according to claim 1 , wherein

the third side is a line which does not include a right angle.

3. The pixel array according to claim 1 , wherein

the first sub-pixel further has at least a fourth side and a fifth side,

the fourth side of the first sub-pixel is adjacent to the fifth side,

the fifth side of the first sub-pixel is adjacent to the second side,

the fourth side of the first sub-pixel is included in the third side of the minimum rectangle surrounding the first sub-pixel, and

the fifth side of the first sub-pixel is included in the fourth side of the minimum rectangle surrounding the first sub-pixel.

4. The pixel array according to claim 3 , wherein

in the first sub-pixel, the first and second sides of the first sub-pixel are longer than the third to fifth sides of the first sub-pixel, and the third side of the first sub-pixel is longer than the fourth and fifth sides of the first sub-pixel.

5. The pixel array according to claim 1 , wherein

a first virtual line parallel to the first direction and passing the first center of gravity does not coincide with a second virtual line parallel to the first direction and passing the second center of gravity.

6. The pixel array according to claim 1 , wherein

the first sub-pixel comprises a first light emitting region including an organic electro luminescence element,

the second sub-pixel comprises a second light emitting region including an organic electro luminescence element,

the minimum rectangle surrounding the first sub-pixel is a minimum rectangle surrounding the first light emitting region, and

the minimum rectangle surrounding the second sub-pixel is a minimum rectangle surrounding the second light emitting region.

7. The pixel array according to claim 6 , wherein

the first sub-pixel comprises a pixel circuit configured to control the first light emitting region to emit light, and

the pixel circuit is located under the first light emitting region.

8. An electro-optic device comprising:

a pixel array comprising:

a plurality of main pixels, each of the main pixels including a first sub-pixel, a second sub-pixel, and a third sub-pixel,

wherein the plurality of main pixels is arrayed in a first direction and in a second direction different from the first direction,

the first sub-pixel and the second sub-pixel are arranged alternately along the first direction,

the third sub-pixel is arranged next to the first and second sub-pixels in the second direction,

each of the main pixels has a main center of gravity defined as an intersection of two diagonal lines of a minimum rectangle surrounding the main pixel,

the first sub-pixel has a first center of gravity defined as an intersection of two diagonal lines of a minimum rectangle surrounding the first sub-pixel,

the second sub-pixel has a second center of gravity defined as an intersection of two diagonal lines of a minimum rectangle surrounding the second sub-pixel,

the first sub--pixel has at least a first side, a second side, and a third side, the first and second sides of the first sub-pixel being adjacent to each other, the first side and the second side of the first sub-pixel each corresponding to a first side and a second side of the minimum rectangle surrounding the first sub-pixel, and the third side of the first sub-pixel intersecting with a third side and a fourth side of the minimum rectangle surrounding the first sub-pixel,

the first center of gravity is located nearer to the main center of gravity than the second center of gravity, and

the first sub-pixel emits light of a green color, the second sub-pixel emits light of a red color, and the third sub-pixel emits light of a blue color; and

a circuit to drive the pixel array.

9. An electric apparatus comprising:

an organic electroluminescence device as a display unit, the organic electroluminescence device including

organic electro luminescence elements forming the pixel array according to claim 1 ,

a circuit to drive the pixel array, and

a flexible substrate on which the pixel array and the circuit are formed.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2019
From: TIANMA JAPAN, LTD. (FORMERLY NLT TECHNOLOGIES, LTD.)
To: TIANMA MICROELECTRONICS CO., LTD.
Reel/Frame 050582/0869 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 20, 2015
From: MATSUEDA, YOJIRO; TAKATORI, KENICHI; NONAKA, YOSHIHIRO
To: NLT TECHNOLOGIES, LTD.
Reel/Frame 035447/0281 →