US-12628536-B2 - Display apparatus and near-eye display device

US12628536B2US 12628536 B2US12628536 B2US 12628536B2US-12628536-B2

Abstract

A display apparatus includes a first pixel unit located at the center of a display region and at least one second pixel unit located at an edge of the display region. A first light-emitting element in the first pixel and a first light emission adjustment unit corresponding to the first light-emitting element are not shifted from each other. Along a direction in which the first pixel unit points to the second pixel unit, a second light adjustment center of a second light emission adjustment unit in the second pixel unit and a second light-emitting center of a second light-emitting element corresponding to the second light emission adjustment unit are shifted from each other with a shift. The display region includes a shift linear-variation region. In the shift linear-variation region, shifts vary linearly with image heights of pixel units.

Inventors

Liyuan Luo
Run YANG
Peng Yan
Zhongshou Huang
Meng Cui

Assignees

SEEYA OPTRONICS CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20231016
Priority Date: 20221230

Claims (17)

1 . A display apparatus, comprising a display region, wherein, the display region comprises a plurality of pixel units, each pixel unit among the plurality of pixel units comprises a plurality of light-emitting elements and a plurality of light emission adjustment units located on a light emission side of the plurality of light-emitting elements, and the plurality of light emission adjustment units are in one-to-one correspondence with the plurality of light-emitting elements; the plurality of pixel units comprise a first pixel unit and at least one second pixel unit, the first pixel unit is located at a center of the display region, and the at least one second pixel unit is located on a side of the first pixel unit facing an edge of the display region; for the first pixel unit, light-emitting elements in the first pixel unit are first light-emitting elements, light emission adjustment units in the first pixel unit are first light emission adjustment units, each of the first light-emitting elements comprises a first light-emitting center, each of the first light emission adjustment units comprises a first light adjustment center, and a first light-emitting center of a first light-emitting element among the first light-emitting elements coincides with a first light adjustment center of a respective first light emission adjustment unit, corresponding to the first light-emitting element, among the first light emission adjustment units; for each of the at least one second pixel unit, light-emitting elements in each second pixel unit are second light-emitting elements; light emission adjustment units in each second pixel unit are second light emission adjustment units; each of the second light-emitting elements comprises a second light-emitting center; each of the second light emission adjustment units comprises a second light adjustment center; and along a first direction, a second light adjustment center of each second light emission adjustment unit among the second light emission adjustment units and a second light-emitting center of a respective second light-emitting element, corresponding to each second light emission adjustment unit, among the second light-emitting elements are shifted from each other with a shift; and the second light adjustment center of each second light emission adjustment unit is located on a side of the second light-emitting center, facing away from the first light-emitting center, of the respective second light-emitting element, the first direction is a direction in which the first pixel unit points to the second pixel unit; the display region comprises a shift linear-variation region; and in the shift linear-variation region, shifts vary linearly with image heights of pixel units among the plurality of pixel units; and in the shift linear-variation region, a shift of an i-th pixel unit which is from the center of the display region along the first direction is that Shift i =n*(i*d), a relationship between the shift Shift i of the i-th pixel and a main-optical-axis angle of the i-th pixel is that Shift i =m*CRA i , and the main-optical-axis angle of the i-th pixel is that CRA i =k*(i*d), wherein i is greater than 0 and less than N, and N denotes a number of pixel units along the first direction and among the plurality of pixel units; d denotes a size of one of the pixel units along the first direction; n denotes a slope of the shifts varying with the image heights of the pixel units, and n is a constant not equal to 0; k denotes a slope of main-optical-axis angles varying with the image heights, and k is a constant not equal to 0; m denotes a slope of the shifts varying with the main-optical-axis angles, and m is a constant not equal to 0; x denotes a size of a light-emitting region along the first direction; and k≤x /(2 m*N*d ).
2 . The display apparatus according to claim 1 , wherein x denotes the size of the light-emitting region along the first direction; and the shift Shift i satisfies that Shift i ≤x/2.
3 . The display apparatus according to claim 1 , wherein the display region further comprises a shift non-linear-variation region; and in the shift non-linear-variation region, shifts vary non-linearly with image heights of pixel units among the plurality of pixel units.
4 . The display apparatus according to claim 3 , wherein a variation trend of the shifts in the shift linear-variation region is same as a variation trend of the shifts in the shift non-linear-variation region.
5 . The display apparatus according to claim 3 , wherein a variation slope of the shifts in the shift linear-variation region is smaller than a variation slope of the shifts in the shift non-linear-variation region.
6 . The display apparatus according to claim 3 , wherein in the shift non-linear-variation region, an i-th pixel unit which is from the center of the display region along the first direction is one second pixel unit, and a shift Shift i corresponding to the one second pixel unit satisfies a following relationship: Shift i =A1*(i*d) 2 +B1*(i*d)+C1, wherein A1, B1, and C1 are each a constant not equal to 0.
7 . The display apparatus according to claim 6 , wherein A1 is 0.0665, B1 is −1.1054, and C1 is 5.323.
8 . The display apparatus according to claim 3 , wherein in the shift non-linear-variation region, an i-th pixel unit which is from the center of the display region along the first direction is one second pixel unit, and a shift Shift i corresponding to the one second pixel unit satisfies a following relationship: Shift i =A2*(i*d) 3 +B2*(i*d) 2 +C2*(i*d)+D2, wherein A2, B2, C2, and D2 are each a constant not equal to 0.
9 . The display apparatus according to claim 8 , wherein A2 is −0.00211, B2 is 0.08317, C2 is −0.75776, and D2 is 2.5621.
10 . The display apparatus according to claim 3 , wherein from the center of the display region to the edge of the display region along the first direction, h1 denotes a size of the shift linear-variation region, and h2 denotes a size of the shift non-linear-variation region, wherein 1≤h1/h2≤2.
11 . The display apparatus according to claim 3 , wherein the shift non-linear-variation region is disposed around the shift linear-variation region.
12 . The display apparatus according to claim 1 , wherein each pixel unit comprises a plurality of sub-pixel units, and a plurality of sub-pixel units of one pixel unit among the plurality of pixel units have a same shift.
13 . The display apparatus according to claim 1 , wherein the plurality of light emission adjustment units comprise a plurality of color filter blocks; and the plurality of color filter blocks comprise a plurality of first color filter blocks serving as a first light emission adjustment unit and a plurality of second color filter block serving as a second light emission adjustment unit.
14 . The display apparatus according to claim 1 , wherein the plurality of light emission adjustment units comprise a plurality of microlenses; and the plurality of microlenses comprise a plurality of first microlenses serving as a first light emission adjustment unit and a plurality of second microlenses serving as a second light emission adjustment unit.
15 . The display apparatus according to claim 1 , wherein the plurality of light emission adjustment units comprise a plurality of color filter blocks and a plurality of microlenses; the plurality of microlenses are located on a side of the plurality of color filter blocks facing away from the plurality of light-emitting elements; and the plurality of color filter blocks comprise a plurality of first color filter blocks and a plurality of second color filter blocks, the plurality of microlenses comprise a plurality of first microlenses and a plurality of second microlenses, the plurality of first color filter blocks and the plurality of first microlenses serve as a first light emission adjustment unit, and the plurality of second color filter blocks and the plurality of second microlenses serve as a second light emission adjustment unit.
16 . A near-eye display device, comprising the display apparatus according to claim 1 .
17 . The near-eye display device according to claim 16 , wherein the display apparatus is a silicon-based OLED microdisplay apparatus.

Description

CROSS-REFERENCES TO RELATED APPLICATION(S) This application claims the priority to Chinese Patent Application No. CN202211737635.0, filed on Dec. 30, 2022, the disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present disclosure relates to the field of display technology and, in particular, to a display apparatus and a near-eye display device. BACKGROUND A near-eye display system, such as a virtual reality display system or an augmented reality display system, may be placed on the head of a user and allow the user to observe an image in a display. For example, the near-eye display system may provide the information of an actual scene for an air pilot or an automobile driver and allow the user to observe both the actual scene and the displayed image. The near-eye display system amplifies an image in a micro-optical display panel through an optical amplifying system (e.g., an optical system) and transmits the image to the human eye. In the existing near-eye display system, a color cast at a large viewing angle is an urgent problem to be solved. SUMMARY The present disclosure provides a display apparatus to alleviate the problem of a color cast of the display apparatus at a large viewing angle. The present disclosure provides a display apparatus. The display apparatus includes a display region. The display region includes a plurality of pixel units. Each pixel unit among the plurality of pixel units includes a plurality of light-emitting elements and a plurality of light emission adjustment units located on a light emission side of the plurality of light-emitting elements. The plurality of light emission adjustment units are in one-to-one correspondence with the plurality of light-emitting elements. The plurality of pixel units include a first pixel unit and at least one second pixel unit. The first pixel unit is located at a center of the display region. The at least one second pixel unit is located on a side of the first pixel unit facing an edge of the display region. For the first pixel unit, light-emitting elements in the first pixel unit are first light-emitting elements, and light emission adjustment units in the first pixel unit are first light emission adjustment units. Each of the first light-emitting elements includes a first light-emitting center, and each of the first light emission adjustment units includes a first light adjustment center. A first light-emitting center of a first light-emitting element among the first light-emitting elements coincides with a first light adjustment center of a respective first light emission adjustment unit, corresponding to the first light-emitting element, among the first light emission adjustment units. For each second pixel unit, light-emitting elements in each second pixel unit are second light-emitting elements, and light emission adjustment units in the second pixel unit are second light emission adjustment units. Each of the second light-emitting elements includes a second light-emitting center, and each of the second light emission adjustment units includes a second light adjustment center. Along a first direction, a second light adjustment center of a second light emission adjustment unit among the second light emission adjustment units and a second light-emitting center of a respective second light-emitting element, corresponding to the second light emission adjustment unit, among the second light-emitting elements are shifted from each other with a shift. The second light adjustment center of each second light emission adjustment unit is located on a side of the second light-emitting center, facing away from the first light-emitting center, of the respective second light-emitting element. The first direction is a direction in which the first pixel unit points to a second pixel unit among the at least one second pixel unit. The display region includes a shift linear-variation region. In the shift linear-variation region, shifts vary linearly with image heights of pixel units among the plurality of pixel units. In the shift linear-variation region, a shift of an i-th pixel unit which is from a center of the display region along the first direction is that Shifti=n*(i*d). A relationship between the shift Shifti of the i-th pixel and a main-optical-axis included angle of the i-th pixel is that Shifti=m*CRAi. The main-optical-axis included angle of the i-th pixel is that CRAi=k*(i*d). i is greater than 0 and less than N. N denotes a number of pixel units along the first direction and among the plurality of pixel units. d denotes a size of one of the pixel units along the first direction. n denotes a slope of the shifts varying with the image heights of the pixel units. n is a constant not equal to 0. k denotes a slope of main-optical-axis included angles varying with the image heights. k is a constant not equal to 0. m denotes a slope of the shifts varying with the main-optical-axis included angles. m is a constant