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公开(公告)号：US20220293050A1
公开(公告)日：2022-09-15
申请号：US17509822
申请日：2021-10-25
发明人： Xing FAN , Chao KONG , Xiangmin WEN
IPC分类号： G09G3/3225 , H01L27/32 , H01L51/52
摘要： The disclosure provides a display panel, a compensation of brightness method and a displaying device. The display panel comprises an array substrate, a luminescent layer, a plurality of optical film layers and a photoelectric sensor, wherein the luminescent layer is located on one side of the array substrate, the array substrate is used for driving the luminescent layer to emit light, the optical film layers are located on a side, away from the array substrate, of the luminescent layer, light emitted by the luminescent layer forms optical waveguide on the array substrate and/or the optical film layers, and the photoelectric sensor is used for acquiring the optical waveguide to perform compensation of brightness on the light emitted by the luminescent layer according to data of the optical waveguide.
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公开(公告)号：US20240224584A1
公开(公告)日：2024-07-04
申请号：US17914155
申请日：2021-10-26
发明人： Hao GAO , Yan FAN , Xing FAN , Xu LI , Zhihui ZHANG , Xiangmin WEN
IPC分类号： H10K50/858 , H10K50/15 , H10K50/16 , H10K50/18 , H10K102/00
CPC分类号： H10K50/858 , H10K50/15 , H10K50/16 , H10K50/181 , H10K2102/3026
摘要： A display device and a display panel thereof, and an OLED display device are provided. The OLED display device includes: a red light-emitting structure, a green light-emitting structure, and a blue light-emitting structure, where (n3z-n3xy)-(n1z-n1xy)≥a first preset value, and (n3z-n3xy)-(n2z-n2xy)≥a second preset value, where ranges of both the first preset value and the second preset value are 0.1˜0.3; n1z is a sum of refractive indexes of respective layers of the red light-emitting structure in a thickness direction; n1xy is a sum of refractive indexes of the respective layers of the red light-emitting structure in a vertical thickness direction; n2z is a sum of refractive indexes of respective layers of the green light-emitting structure in the thickness direction; n2xy is a sum of refractive indexes of the respective layers of the green light-emitting structure in the vertical thickness direction; n3z is a sum of refractive indexes of respective layers of the blue light-emitting structure in the thickness direction; and n3xy is a sum of refractive indexes of the respective layers of the blue light-emitting structure in the vertical thickness direction. According to embodiments of the present disclosure, a reflectance of an interface between the blue light-emitting structure and outside at a large angle of view can be reduced, a light transmittance can be increased, a brightness can be enhanced, and further a color shift can be improved.
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公开(公告)号：US20210408177A1
公开(公告)日：2021-12-30
申请号：US16639039
申请日：2019-07-12
发明人： Xing FAN , Hao GAO , Lujiang HUANGFU , Yan FAN , Xiangmin WEN
摘要： A display back panel may include a substrate, an insulating layer disposed on one side of the substrate and including a plurality of recesses, the plurality of recesses including a bottom surface, a first electrode disposed on a surface of the insulating layer away from the substrate, a pixel defining layer disposed on a surface of the first electrode away from the substrate and including a plurality of openings, a light-emitting layer disposed in the plurality of openings and covering the first electrode, and a second electrode disposed on a surface of the light-emitting layer away from the substrate. Therein, the first electrode may reflect waveguide light laterally propagated by the light-emitting layer, thereby improving a light-emitting efficiency of the light-emitting layer. Further, the reflected waveguide light may not be absorbed by the second electrode, thereby enhancing an external quantum effect of the light-emitting layer.
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公开(公告)号：US20240260411A1
公开(公告)日：2024-08-01
申请号：US18020420
申请日：2022-06-21
发明人： Zhihui ZHANG , Bei WANG , Hao GAO , Yan FAN , Xiangmin WEN
CPC分类号： H10K59/875 , H10K50/13 , H10K59/35
摘要： A light emitting substrate includes: a first base substrate, a plurality of light emitting devices located on the first base substrate, wherein the light emitting devices include a first light emitting device, a second light emitting device and a third light emitting device, each of the light emitting devices includes a first electrode layer, a light emitting functional layer and a second electrode layer which are stacked, the light emitting functional layer includes an emitting layer including a first emitting layer in the first light emitting device, a second emitting layer in the second light emitting device and a third emitting layer in the third light emitting device; the material of the first emitting layer is different from the material of the second emitting layer, and the material of the first emitting layer is different from the material of the third emitting layer.
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公开(公告)号：US20220231251A1
公开(公告)日：2022-07-21
申请号：US17483290
申请日：2021-09-23
发明人： Xiangmin WEN , Xing FAN , Yan FAN , Hao GAO
摘要： The present disclosure provides an organic electroluminescent device and a manufacturing method thereof. The organic electroluminescent device includes an anode, an electron transport layer and a cathode. The material of the electron transport layer includes a mixture of a first electron transport material and a second electron transport material, the lowest unoccupied molecular orbital energy level of the first electron transport material is higher than that of the second electron transport material, and the ratio of the first electron transport material to the second electron transport material first decreases and then increases in the direction from the cathode to the anode.
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