Display device and display method thereof

Patent metadata

Field	Value
Publication number	US-2022311991-A1
Application number	US-202017288586-A
Country	US
Kind code	A1
Filing date	Sep 14, 2020
Priority date	Oct 30, 2019
Publication date	Sep 29, 2022
Grant date	—

Abstract

Provided is a display device. The display device includes a display panel and a microlens array disposed on a light-emitting side of the display panel, wherein the display panel includes a plurality of pixel islands in which a first pixel island displaying a first color, a second pixel island displaying a second color, and a third pixel island displaying a third color adjacent to one another form a repeating unit. In a same repeating unit, three sub-pixels at the same positions relative to their respective microlens units in the first pixel island, the second pixel island, and the third pixel island are disposed at three vertexes of a triangle respectively, and thus form a color fusion pixel. In addition, the display device further includes microlens arrays in one-to-one correspondence with the plurality of pixel islands to realize 3D display.

First claim

1 . A display device, comprising a display panel and a microlens array disposed on a light-emitting side of the display panel, wherein the display panel comprises a plurality of pixel islands, and the microlens array comprises a plurality of microlens units in one-to-one correspondence with the plurality of pixel islands;
wherein an orthographic projection of each of the microlens units on the display panel is coincident with or disposed within a region where a corresponding pixel island is disposed; and each of the pixel islands comprises a plurality of sub-pixels arranged in an array, wherein the sub-pixels in a same pixel island display a same color, and the plurality of pixel islands comprise a first pixel island displaying a first color, a second pixel island displaying a second color, and a third pixel island displaying a third color, the first pixel island, the second pixel island, and the third pixel island adjacent to one another forming a repeating unit; wherein in a same repeating unit, a first sub-pixel in the first pixel island, a second sub-pixel in the second pixel island, and a third sub-pixel in the third pixel island are disposed at three vertexes of a triangle respectively, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixels are disposed at same positions respectively relative to the microlens unit corresponding to the first pixel island, the microlens unit corresponding to the second pixel island, and the microlens unit corresponding to the third pixel island.

2 . The display device according to claim 1 , wherein in the same repeating unit, the first sub-pixel in the first pixel island, the second sub-pixel in the second pixel island, and the third sub-pixel in the third pixel island are disposed at three vertexes of an isosceles triangle respectively.

3 . The display device according to claim 1 , wherein the pixel island and the microlens unit are both in a rectangular shape.

4 . The display device according to claim 3 , wherein in each of the pixel islands, the number of sub-pixels in a length direction is 2 k, and a ratio of the number of sub-pixels in the length direction to the number of sub-pixels in a width direction is 21:1, wherein k is an integer greater than or equal to 2, and i is an integer greater than or equal to 1.

5 . The display device according to claim 4 , wherein the length direction is parallel to an extension direction of a grid line.

6 . The display device according to claim 1 , wherein a pitch P of the microlens unit is determined according to a width Px of the sub-pixel, a preset binocular pupil distance T, and the number N of sub-pixels included in each of the pixel islands, wherein the pitch P is calculated by the following formula:
P =( N×T×Px )/( T+Px ).

7 . The display device according to claim 1 , wherein a curvature radius r of the microlens unit is determined according to a width Px of the sub-pixel, a preset binocular pupil distance T, the number N of sub-pixels included in each of the pixel islands, and a preset viewing distance L, wherein the curvature radius r is calculated by the following formula:
r =( Px×L ×( N− 1))/ T.

8 . The display device according to claim 1 , wherein a distance h between the microlens unit and the display panel is determined according to a width Px of the sub-pixel, a preset binocular pupil distance T, and a preset viewing distance L, wherein the distance h is calculated by the following formula:
h =( L×Px )/ T.

9 . The display device according to claim 1 , wherein a thickness d of the microlens unit is determined according to a refractive index n of a material of the microlens unit, a curvature radius r of the microlens unit, and a distance h between the microlens unit and the display panel, wherein the thickness d is calculated by the following formula:
d=n×r /( n− 1)− n×h.

10 . The display device according to claim 1 , wherein a width w of the microlens unit is determined according to a width Px of the sub-pixel, a distance h between the microlens unit and the display panel, the number N of sub-pixels included in each of the pixel islands, and a preset viewing distance L, wherein the width w of the microlens unit is calculated by the following formula:
w =( L×N×Px )/( L+h ).

11 . The display device according to claim 1 , further comprising a controlling unit and a rendering unit, wherein the controlling unit is electrically connected to the rendering unit and configured to control the rendering unit to perform image rendering, and each sub-pixel in the pixel island is electrically connected to the rendering unit.

12 . A display method of a display device, applicable to the display device as defined in claim 1 , the display method comprising:
driving, in each display period, a plurality of rows of pixels included in the display device row by row for display; wherein each of the pixels comprises the first sub-pixel in the first pixel island, the second sub-pixel in the second pixel island, and the third sub-pixel in the third pixel island in the same repeating unit.

13 . The display method according to claim 12 , wherein the each display period comprises a plurality of timings, wherein pixels displayed by driving in any two timings are different and multiplex a sub-pixel in at least one of the pixel islands.

14 . The display method according to claim 13 , wherein the each display period comprises 2 m, or 3 m, or 6 m timings, wherein m is a positive integer greater than or equal to 1; a refresh rate of an image in each of the timings is greater than F, wherein F is a refresh rate when human eyes are incapable of perceiving image flicker.

15 . The display method according to claim 14 , wherein the each display period comprises a first timing, a second timing, and a third timing;
wherein a first pixel displayed by driving in the first timing and a second pixel displayed by driving in the second timing multiplex a sub-pixel in at least one of the pixel islands, the second pixel and a third pixel displayed by driving in the third timing multiplex a sub-pixel in at least one of the pixel islands, and the first pixel, the second pixel, and the third pixel are arranged along a direction parallel to a grid line.

16 . The display method according to claim 14 , wherein the each display period comprises a first timing and a second timing;
wherein a first pixel displayed by driving in the first timing and a second pixel displayed by driving in the second timing multiplex a sub-pixel in at least one of the pixel islands, and the first pixel and the second pixel are arranged along a direction parallel to a data line.

17 . The display method according to claim 14 , wherein the each display period comprises a first timing, a second timing, a third timing, a fourth timing, a fifth timing, and a sixth timing;
wherein a first pixel displayed by driving in the first timing and a second pixel displayed by driving in the second timing multiplex a sub-pixel in at least one of the pixel islands, the second pixel and a third pixel displayed by driving in the third timing multiplex a sub-pixel in at least one of the pixel islands, and the first pixel, the second pixel, and the third pixel are arranged along a direction parallel to a grid line; a fourth pixel displayed by driving in the fourth timing and a fifth pixel displayed by driving in the fifth timing multiplex a sub-pixel in at least one of the pixel islands, the fifth pixel and a sixth pixel displayed by driving in the sixth timing multiplex a sub-pixel in at least one of the pixel isl

Assignees

• Boe Technology Group Co Ltd

Inventors

• Hong Tao

Classifications

• G01S7/20

  Stereoscopic displays; Three-dimensional [3D] displays; Pseudo-3D displays · CPC title

• G02F1/0121

  Operation of devices; Circuit arrangements, not otherwise provided for in this subclass · CPC title

• G01S7/04

  Display arrangements · CPC title

• H04N13/307 Primary

  using fly-eye lenses, e.g. arrangements of circular lenses · CPC title

• H04N13/32

  using arrays of controllable light sources; using moving apertures or moving light sources · CPC title