Display Device

Patent metadata

Field	Value
Publication number	US-2017193876-A1
Application number	US-201615139115-A
Country	US
Kind code	A1
Filing date	Apr 26, 2016
Priority date	Dec 31, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

Disclosed is a display device for increasing an aperture ratio of a transmissive part. The display device includes data lines overlapping with one or more of the pixels emitting light to display an image. Each pixel includes subpixels arranged within the pixel along a same direction as the data lines. The display device further includes transmissive parts arranged in the first direction and corresponding to adjacent pixels. In addition to the data lines overlapping the pixels, the display device may include power lines and reference voltage lines parallel with the data lines and overlapping with the pixels. The display device may include scan lines and sensing lines arranged to cross the transmissive parts and data lines. As a result, the number of lines crossing the transmissive parts is reduced, thereby increasing an aperture ratio of the transmissive parts.

First claim

What is claimed is:

1 . A display device comprising:
a plurality of pixels emitting light to display an image, each pixel including a plurality of subpixels arranged within the pixel along a first direction; a plurality of transmissive parts arranged in the first direction and each corresponding to an adjacent pixel, the transmissive parts transmitting incident light; and a plurality of data lines arranged parallel to the first direction, each data line overlapping with one or more of the pixels.

2 . The display device of claim 1 , further comprising a plurality of power lines arranged in the first direction, the plurality of power lines overlapping with the plurality of pixels and arranged parallel to the plurality of transmissive parts.

3 . The display device of claim 2 , wherein each transmissive part is disposed between one of the plurality of data lines and one of the plurality of power lines.

4 . The display device of claim 1 , further comprising: a plurality of reference voltage lines arranged in the first direction parallel to the plurality of data lines, the plurality of reference voltage lines overlapping with the plurality of pixels and arranged parallel to the plurality of transmissive parts.

5 . The display device of claim 1 , further comprising: a plurality of scan lines arranged in a second direction across the plurality of data lines.

6 . The display device of claim 5 , further comprising: a plurality of sensing lines arranged in the second direction, the plurality of sensing lines arranged across the plurality of data lines.

7 . The display device of claim 6 , wherein each transmissive part is disposed between one of the plurality of scan lines and one of the plurality of sensing lines.

8 . The display device of claim 1 ,
wherein each pixel comprises:
a plurality of organic light emitting devices each including an anode electrode, an organic light emitting layer, and a cathode electrode;
a plurality of driving transistors driving the organic light emitting device;
a plurality of scan transistors controlling the plurality of driving transistors; and
a plurality of sensing transistors compensating the plurality of driving transistors,
wherein the plurality of organic light emitting devices included in the pixel are arranged in the first direction.

9 . The display device of claim 8 , wherein each pixel further comprises a first bridge line connecting a corresponding power line to the plurality of driving transistors, the first bridge line crossing at least one of the plurality of data lines.

10 . The display device of claim 9 , wherein each pixel further comprises a second bridge line connecting a corresponding reference voltage line to the plurality of sensing transistors, the second bridge line intersecting at least one of the plurality of data lines, wherein the first bridge line is parallel to the second bridge line.

11 . The display device of claim 8 , wherein the plurality of driving transistors overlap with a first anode electrode of the pixel.

12 . The display device of claim 11 , wherein the plurality of scan transistors overlap with the first anode electrode of the pixel.

13 . The display device of claim 12 , wherein the plurality of sensing transistors overlap with a second anode electrode of the pixel.

14 . The display device of claim 13 , wherein each pixel further comprises a plurality of capacitors, wherein the plurality of capacitors overlap with the second anode electrode of the pixel and a third anode electrode of the pixel.

15 . The display device of claim 14 , wherein the plurality of subpixels correspond to red, green, and blue light.

16 . The display device of claim 14 , wherein the plurality of capacitors overlap with a fourth anode electrode of the pixel.

17 . The display device of claim 16 , wherein the plurality of subpixels correspond to red, green, blue, and white light.

18 . The display device of claim 1 , wherein an area of each transmissive part is less than two times of an area of the plurality of subpixels of each pixel.

19 . The display device of claim 1 , wherein each pixel includes at least one capacitor overlapping with at least two subpixels in the pixel.

20 . The display device of claim 19 , wherein each pixel includes a plurality of capacitors arranged in a second direction across the plurality of data lines.

Assignees

• Lg Display Co Ltd

Inventors

• Choi Jeong Hyeon
• Kim Binn
• Han Joon Soo

Classifications

• G09G2320/0295

  by monitoring each display pixel · CPC title

• G09G2300/0456

  with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels · CPC title

• G09G3/3233 Primary

  with pixel circuitry controlling the current through the light-emitting element · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title