US 12,271,650 B2
Display apparatus and splice display system
Chao Yu, Beijing (CN); Jian Wu, Beijing (CN); Quanzhong Wang, Beijing (CN); Junmin Sun, Beijing (CN); and Lu Xiao, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/268,648
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Mar. 8, 2022, PCT No. PCT/CN2022/079683
§ 371(c)(1), (2) Date Jun. 21, 2023,
PCT Pub. No. WO2022/267551, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 202110715741.8 (CN), filed on Jun. 25, 2021.
Prior Publication US 2024/0296004 A1, Sep. 5, 2024
Int. Cl. G09G 3/14 (2006.01); G06F 3/14 (2006.01); G09G 3/32 (2016.01)
CPC G06F 3/1446 (2013.01) [G09G 3/32 (2013.01); G09G 2300/026 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a lamp panel, which comprises a circuit board and a plurality of light-emitting elements on the circuit board; and
a mask on side of the plurality of light-emitting elements away from the circuit board, wherein the mask comprises a plurality of light-transmitting parts corresponding to the plurality of light-emitting elements, an orthographic projection of each of the plurality of light-emitting elements on the circuit board is within an orthographic projection of a corresponding light-transmitting part on the circuit board, each of the plurality of light-transmitting parts comprises a concave lens, and a surface of the concave lens close to a light-emitting element is a concave arc surface,
wherein the light-emitting element is on an optical axis of the concave lens,
wherein a first spacing exists between centers of every two adjacent light-emitting elements, a distance between the light-emitting element and a light transmitting part in a direction of the optical axis is ⅓ to ⅔ of the first spacing, and a curvature of the arc surface is 1 to 2 times of the first spacing.