US 12,307,953 B2
Full-screen display device with different unit pixels for emitting and receiving light
Chun-Yu Lee, New Taipei (TW); and Jun-Wen Chung, Tainan (TW)
Assigned to Guangzhou Tyrafos Semiconductor Technologies Co., Ltd., Guangzhou (CN)
Filed by Guangzhou Tyrafos Semiconductor Technologies Co., Ltd., Guangzhou (CN)
Filed on Oct. 25, 2023, as Appl. No. 18/494,558.
Claims priority of provisional application 63/431,332, filed on Dec. 9, 2022.
Prior Publication US 2024/0194128 A1, Jun. 13, 2024
Int. Cl. G06V 40/13 (2022.01); G06F 21/32 (2013.01); G09G 3/32 (2016.01); H10K 59/65 (2023.01); H10K 59/80 (2023.01)
CPC G09G 3/32 (2013.01) [G06F 21/32 (2013.01); G06V 40/1318 (2022.01); H10K 59/65 (2023.02); H10K 59/877 (2023.02); H10K 59/879 (2023.02); H10K 59/873 (2023.02)] 7 Claims
OG exemplary drawing
 
1. A full-screen display device with different unit pixels for emitting and receiving light, comprising:
a water and oxygen barrier layer;
a protective panel, disposed above the water and oxygen barrier layer;
a plurality of unit pixels, arranged below the water and oxygen barrier layer, at least one of the unit pixels being defined as a light-emitting element and at least one of the unit pixels being defined as a sensing element when the full-screen display device performs biometric recognition, and the sensing element having a light-sensing area;
a light-shielding layer, disposed on a first surface of the water and oxygen barrier layer and having a plurality of openings to expose at least part of each of the unit pixels; and
a plurality of lenses, disposed on the first surface of the water and oxygen barrier layer and located in the openings;
wherein each of the lenses is a microlens or a meta-lens and a size of the light-sensing area is obtained through the following conditions: (1) a curved surface of the microlens is a spherical surface, an aspherical surface or an asymmetric free-form surface, or the meta-lens comprises a nanometer microstructure;

OG Complex Work Unit Math
where A is a size of a unit pixel, B is the size of the light-sensing area, D is a thickness of the water and oxygen barrier layer, H is a height of the microlens, R is a curvature of the microlens, and Z1 is a diameter of the microlens, and Z2 is a diameter of each of the openings; and
wherein the unit pixel defined as the light-emitting element emits an incident light, the incident light passing through the water and oxygen barrier layer and scattering outwardly through at least one of the lenses, and the scattered incident light passing through the protective panel and then reflected by a test object to generate a reflected light; the reflected light passing through the protective panel, entering at least one of the lenses and being converged; and the converged reflected light travels along a converged light path and passes through the water and oxygen barrier layer to be received by the light-sensing area and converted into an image electrical signal.