US 12,245,484 B2
Display module and display device
Junqiang Wang, Wuhan (CN)
Assigned to Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan (CN)
Filed by Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan (CN)
Filed on Oct. 14, 2021, as Appl. No. 17/450,929.
Claims priority of application No. 202110742836.9 (CN), filed on Jun. 30, 2021.
Prior Publication US 2023/0006002 A1, Jan. 5, 2023
Int. Cl. H10K 59/80 (2023.01); H10K 59/35 (2023.01)
CPC H10K 59/353 (2023.02) [H10K 59/352 (2023.02); H10K 59/879 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display module, comprising:
a display panel including a display array, the display array including a plurality of sub-pixels with pixel gaps between adjacent sub-pixels; and
first dimming areas and second dimming areas, both a first dimming area of the first dimming areas and a second dimming area of the second dimming areas including at least one of the plurality of sub-pixels, wherein:
the first dimming area includes a first dimming layer with a refractive index of n1, a second dimming layer with a refractive index of n2, a contact interface between the first dimming layer and the second dimming layer includes a first dimming structure,
the second dimming area includes a third dimming layer with a refractive index of n3, and a fourth dimming layer with a refractive index of n4, a contact interface between the third dimming layer and the fourth dimming layer includes a second dimming structure,
an angle between the first dimming structure and a plane where the display panel is located is less than 90°, an angle between the second dimming structure and the plane where the display panel is located is less than 90°, and |n1−n2|<|n3−n4|, and
the display module further comprises a first display area and a second display area, wherein:
in a direction perpendicular to the display panel, in the first display area, an area ratio of the first dimming area is greater than an area ratio of the second dimming area, and in the second display area, an area ratio of the first dimming area is smaller than the area ratio of the second dimming area.