US 11,994,790 B2
Transparent display panel and control method and apparatus therefor, display apparatus, and display system
Luqiang Guo, Beijing (CN); Tingting Luo, Beijing (CN); Guangyun Tong, Beijing (CN); and Shou Li, Beijing (CN)
Assigned to Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/762,999
Filed by BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 12, 2021, PCT No. PCT/CN2021/093248
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2022/001384, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 202010611244.9 (CN), filed on Jun. 30, 2020.
Prior Publication US 2022/0350230 A1, Nov. 3, 2022
Int. Cl. G03B 21/00 (2006.01); G02F 1/133 (2006.01); G02F 1/1335 (2006.01); G02F 1/1343 (2006.01); G02F 1/1362 (2006.01); G02F 1/137 (2006.01); G03B 21/56 (2006.01)
CPC G03B 21/006 (2013.01) [G02F 1/13312 (2021.01); G02F 1/133504 (2013.01); G02F 1/133528 (2013.01); G02F 1/134309 (2013.01); G02F 1/136222 (2021.01); G02F 1/137 (2013.01); G03B 21/56 (2013.01); G02F 2203/01 (2013.01); G02F 2203/09 (2013.01); G02F 2203/30 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A control method of a transparent display panel, wherein the transparent display panel comprise a liquid crystal panel and a transflective optical film layer disposed on one side of the liquid crystal panel, wherein a plurality of microstructures used for scattering incident light are disposed in the transflective optical film layer, thereby presenting a projected image, the control method of the transparent display panel comprising:
receiving a transparency level indicating information of the transparent display panel, wherein the transparency level indicating information of the transparent display panel comprises an area transparency level indicating information corresponding to a projected image;
determining a light transmittance grade of the liquid crystal panel in the transparent display panel according to the transparency level indicating information of the transparent display panel, comprising:
dividing the projected image into a plurality of first areas according to a preset rule,
determining a transparency level of each first area of the plurality of first areas, comprising:
determining a grayscale mean value of the projected image in the each first area; and
taking a product of the grayscale mean value in the each first area and a preset coefficient as the transparency level of the each first area, wherein the preset coefficient is determined by the light transmittance of a transflective optical film layer in the transparent display panel;
determining a light transmittance grade of each second area in the liquid crystal panel according to the transparency level of the each first area, wherein the liquid crystal panel comprises a plurality of second areas which are in one-to-one correspondence with the plurality of first areas; and
controlling a voltage applied to a first driving electrode and a voltage applied to a second driving electrode in the transparent display panel to control the light transmittance grade of the liquid crystal panel.