Display panel and display device

Patent metadata

Field	Value
Publication number	US-11222929-B2
Application number	US-202117232941-A
Country	US
Kind code	B2
Filing date	Apr 16, 2021
Priority date	Dec 25, 2020
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

Provided are a display panel and a display device. The display panel includes a first display region, a second display region, and a transition display region between the first display region and the second display region. The second display region includes second pixel units, the transition display region includes third pixel units, and each second pixel unit and each third pixel unit both include a first sub-pixel, a second sub-pixel, a third sub-pixel, and a white sub-pixel. A ratio of a total opening area of white sub-pixels in the second pixel units to a total area of the second pixel units is A, and a ratio of a total opening area of white sub-pixels in the third pixel units to a total area of the third pixel units is B, where B<A. The white sub-pixel is turned on or off in a display stage of the display panel.

First claim

What is claimed is:

1. A display panel, comprising:
a first display region,
a transition display region, and
a second display region, wherein the transition display region is disposed between the first display region and the second display region, and a pixel density of the second display region is less than a pixel density of the first display region;
wherein the second display region comprises a plurality of second pixel units, the transition display region comprises a plurality of third pixel units, and each of the plurality of second pixel units and each of the plurality of third pixel units both comprise a first sub-pixel, a second sub-pixel, a third sub-pixel, and a white sub-pixel;
wherein a ratio of a total opening area of white sub-pixels in the plurality of second pixel units to a total area of the plurality of second pixel units is A, and a ratio of a total opening area of white sub-pixels in the plurality of third pixel units to a total area of the plurality of third pixel units is B, wherein B<A; and
wherein the white sub-pixel is configured to be turned on or off in a display stage of the display panel.

2. The display panel of claim 1 , wherein the transition display region comprises a first sub-transition display region; and a first sub-pixel, a second sub-pixel, a third sub-pixel, and a white sub-pixel in a third pixel unit in the first sub-transition display region each have a first shape, and the first shape is a rectangle, a square, a circle, or an oval.

3. The display panel of claim 2 , wherein the transition display region further comprises a second sub-transition display region, and the second sub-transition display region is disposed on one side of the first sub-transition display region facing towards the second display region; a ratio of a total opening area of white sub-pixels in third pixel units in the first sub-transition display region to an area of the third pixel units in the first sub-transition display region is C; and a ratio of a total opening area of white sub-pixels in third pixel units in the second sub-transition display region to an area of the third pixel units in the second sub-transition display region is D, wherein C<D.

4. The display panel of claim 3 , wherein the first sub-pixel, the second sub-pixel, the third sub-pixel, and the white sub-pixel in the third pixel unit in the first sub-transition display region each have a second shape; and a first sub-pixel, a second sub-pixel, a third sub-pixel, and a white sub-pixel in a third pixel unit in the second sub-transition display region each have a third shape; and
the second shape is a rectangle or a square, and the third shape is a circle or an oval.

5. The display panel of claim 3 , wherein the transition display region further comprises a third sub-transition display region, and the third sub-transition display region is disposed on one side of the second sub-transition display region facing towards the second display region; the ratio of the total opening area of the white sub-pixels in the third pixel units in the first sub-transition display region to the area of the third pixel units in the sub-transition display region is C; the ratio of the total opening area of the white sub-pixels in the third pixel units in the second sub-transition display region to the area of the third pixel units in the second sub-transition display region is D; and in a third pixel unit in the third sub-transition display region, a ratio of a total opening area of white sub-pixels in third pixel units in third sub-transition display region to an area of the third pixel units in the third sub-transition display region is E, wherein C<D<E.

6. The display panel of claim 5 , wherein the first sub-pixel, the second sub-pixel, the third sub-pixel, and the white sub-pixel in the third pixel unit in the first sub-transition display region each have a fourth shape; and a first sub-pixel, a second sub-pixel, a third sub-pixel, and a white sub-pixel in a third pixel unit in the second sub-transition display region each have a fifth shape; and a first sub-pixel, a second sub-pixel, a third sub-pixel, and a white sub-pixel in a third pixel unit in the third sub-transition display region each have a sixth shape; and
the fourth shape is a rectangle, the fifth shape is a square, and the sixth shape is a circle or an oval.

7. The display panel of claim 5 , wherein a ratio of the total opening area of the white sub-pixels in the third pixel units in the first sub-transition display region to a total opening area of first sub-pixels in the third pixel units in the first sub-transition display region is F1, a ratio of the total opening area of the white sub-pixels in the third pixel units in the first sub-transition display region to a total opening area of second sub-pixels in the third pixel units in the first sub-transition display region is F2, and a ratio of the total opening area of the white sub-pixels in the third pixel units in the first sub-transition display region to a total opening area of third sub-pixels in the third pixel units in the first sub-transition display region is F3, wherein ½≤F1≤1, ½≤F2≤1, and ½≤F3≤1;
a ratio of the total opening area of the white sub-pixels in the third pixel units in the second sub-transition display region to a total opening area of first sub-pixels in the third pixel units in the second sub-transition display region is G1; a ratio of the total opening area of the white sub-pixels in the third pixel units in the second sub-transition display region to a total opening area of second sub-pixels in the third pixel units in the second sub-transition display region is G2, and a ratio of the total opening area of the white sub-pixels in the third pixel units in the second sub-transition display region to a total opening area of third sub-pixels in the third pixel units in the second sub-transition display region is G3, wherein ⅓≤G1≤1, ⅓≤G2≤1, and ⅓≤G3≤1; and
a ratio of the total opening area of the white sub-pixel in the third pixel units in the third sub-transition display region to a total opening area of first sub-pixels in the third pixel units in the third sub-transition display region is H1; a ratio of the total opening area of the white sub-pixels in the third pixel units in the third sub-transition display region to a total opening area of second sub-pixels in the third pixel units in the third sub-transition display region is H2, and a ratio of the total opening area of the white sub-pixels in the third pixel units in the third sub-transition display region to a total opening area of third sub-pixels in the third pixel units in the third sub-transition display region is H3, wherein ¼≤H1≤1, ¼≤H2≤1, and ¼≤H3≤1.

8. The display panel of claim 5 , wherein a value range of a width ratio among the first sub-transition display region, the second sub-transition display region, and the third sub-transition display region is greater than 1:1:1 and less than or equal to 3:2:1.

9. The display panel of claim 5 , wherein a ratio of a number of third pixel units among the first sub-transition display region, the second sub-transition display region, and the third sub-transition display region is greater than 1:1:1 and less than or equal to 3:2:1.

10. The display panel of claim 5 , wherein a total area of white sub-pixels in the first sub-transition display region is I, a total area of white sub-pixels in the second sub-transition display region is J, and a total area of white sub-pixels in the third sub-transition display region is L, wherein I<J<L.

11. The display panel of claim 1 , wherein a ratio of a width of the transition display region to a width of the second display region has a value range of less than o

Assignees

• Xiamen Tianma Micro Electronics Co Ltd

Inventors

• Wang Hailiang
• Li Yaying
• Yang Yan
• Zhou Ting
• Li Junyi

Classifications

• G02F1/133514

  Colour filters · CPC title

• G09G3/3607

  for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127) · CPC title

• H04M1/0266

  for a display module assembly · CPC title

• G02F2201/52

  RGB geometrical arrangements · CPC title

• G09G3/2074 Primary

  using sub-pixels · CPC title