公开(公告)号：US20190056548A1

公开(公告)日：2019-02-21

申请号：US15756823

申请日：2017-09-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xianqin Meng ,  Xue Dong ,  Wei Wang ,  Xiaochuan Chen ,  Yafeng Yang ,  Jifeng Tan ,  Xiandong Meng ,  Jian Gao ,  Pengxia Liang ,  Ming Zhu

IPC: F21V8/00

Abstract: This disclosure provides a light source assembly and a display device, and the light source assembly includes: a first substrate and a second substrate arranged opposite to each other; a waveguide layer arranged between the first substrate and the second substrate; and a side-incident collimated light source arranged on a side of the waveguide layer, wherein the refractive index of the waveguide layer is higher than the refractive index of the first substrate, and the refractive index of the second substrate respectively; and light of the side-incident collimated light source is incident onto the side of the waveguide layer at a preset angle, and the incident light is totally reflected at the interference between the first substrate and the waveguide layer. In the embodiments of this disclosure, the light of the side-incident collimated light source is reflected totally at the interface between the waveguide layer and the first substrate under the principle of total reflection, and refracted at the interface between the waveguide layer and the second substrate, that is, the light is radiated from the surface of the second substrate, thus improving the efficiency of the light exiting from the single side of the light source assembly.

公开(公告)号：US20180357961A1

公开(公告)日：2018-12-13

申请号：US15562673

申请日：2017-03-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji Yang ,  Xue Dong ,  Jing Lv ,  Xiaochuan Chen ,  Wenqing Zhao ,  Yafeng Yang ,  Lei Wang ,  Dongni Liu ,  Li Xiao ,  Pengcheng Lu ,  Han Yue ,  Jie Fu

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A pixel circuit, a display panel, a display device and a driving method are disclosed. The pixel circuit includes: a light-emitting circuit including a plurality of light-emitting sub-circuits (111); and a compensation driving circuit including an output terminal and a driving transistor. The plurality of light-emitting sub-circuits are all electrically connected to the output terminal; and the compensation driving circuit is configured to receive a light-emitting data signal, compensate for a threshold voltage of the driving transistor, and drive any one of the plurality of light-emitting sub-circuits to emit light according to an output signal output by the output terminal.

公开(公告)号：US20180252932A1

公开(公告)日：2018-09-06

申请号：US15560690

申请日：2016-09-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jifeng Tan ,  Xiaochuan Chen ,  Yafeng Yang ,  Jian Gao

IPC: G02B27/22 ,  H04N13/305 ,  G09G3/00 ,  G02F1/1343 ,  G02F1/1335

Abstract: The present application discloses a three-dimensional display panel including a first display substrate having a plurality groups of M pixels, the first display substrate being a reflective display substrate; a second display substrate facing the first display substrate, the second display substrate being a transparent display substrate; and a lens array layer on a side of the second display substrate distal to the first display substrate having a plurality of lenses capable of directing light reflected by each of the M pixels into one of N view zones on a side of the lens array layer distal to the second display substrate; M is an integer ≥2; N is an integer ≥2.

公开(公告)号：US09753328B2

公开(公告)日：2017-09-05

申请号：US14409758

申请日：2014-05-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yafeng Yang ,  Teruaki Suzuki ,  Jaegeon You

IPC: G02F1/13363 ,  G02F1/1368 ,  G02F1/1341 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1333 ,  G02F1/1337

CPC classification number: G02F1/13363 ,  G02F1/133305 ,  G02F1/133512 ,  G02F1/133528 ,  G02F1/133723 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/1368 ,  G02F2001/133531 ,  G02F2202/02 ,  G02F2202/022 ,  G02F2202/40 ,  G02F2413/13 ,  G02F2413/14

Abstract: Provided are TFT-LCD panel, method for preparing the same, and TFT display device. The TFT-LCD panel includes an upper polarizer, a positive birefringence polymer substrate, a liquid crystal layer, a negative birefringence polymer substrate and a lower polarizer, wherein the positive birefringence polymer substrate and the negative birefringence polymer substrate locate at an upper side and an lower side of the liquid crystal layer respectively, the upper polarizer locates at an upper surface of the positive birefringence polymer substrate, the lower polarizer locates at a lower surface of the negative birefringence polymer substrate; the positive birefringence polymer substrate and the negative birefringence polymer substrate are equals in a birefringence retardation in an original birefringence state, and are equals in a birefringence retardation of in the photo-elasticity birefringence state. The TFT-LCD panel of the present disclosure may avoid generating light leakage in dark, and improve homogeneity in dark.

公开(公告)号：US09613553B2

公开(公告)日：2017-04-04

申请号：US14500648

申请日：2014-09-29

Applicant: Boe Technology Group Co., Ltd.

Inventor： Jaegeon You ,  Yafeng Yang ,  Kiman Kim ,  Qian Jia

IPC: G09G3/00 ,  G09G3/20

CPC classification number: G09G3/006 ,  G09G3/2003 ,  G09G3/2092 ,  G09G2320/0233 ,  G09G2320/0238 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/06

Abstract: A method and device for detecting uniformity of a dark state image of a display is disclosed. After an acquired dark state image of a display panel is divided into a plurality of areas according to a preset rule, RGB values of each area are determined and converted into XYZ values. The L* and C* values in the CIE-LCH standard are calculated and statistical analysis is performed to the L* and C* values of the areas in the dark state image to determine statistical parameters of the display image. A dark state uniformity coefficient of the dark state image is determined based on the determined statistical parameters, and the uniformity of the dark state image of the display panel is determined through the dark state uniformity coefficient.

公开(公告)号：US20220293576A1

公开(公告)日：2022-09-15

申请号：US17536268

申请日：2021-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Meili Wang ,  Xuan Liang ,  Fei Wang ,  Lei Wang ,  Yafeng Yang ,  Xue Dong ,  Zhanfeng Cao ,  Mingxing Wang ,  Fuqiang Li ,  Chenyang Zhang ,  Xinxin Zhao ,  Yanling Han ,  Lei Wang ,  Xuan Feng ,  Yapeng Li

IPC: H01L25/16 ,  H01L33/62 ,  H01L27/146 ,  H01L21/66

Abstract: A semiconductor apparatus and a method for manufacturing the semiconductor apparatus are provided. The semiconductor apparatus includes: a base substrate; a chip arranged on the base substrate, wherein the chip includes a chip main body and a plurality of terminals arranged on the chip main body; a terminal expansion layer arranged on the base substrate, the terminal expansion layer including a conductive material, and the terminal expansion layer and at least one terminal are located on a same side of the chip main body; and a plurality of expansion wires in the terminal expansion layer, wherein the plurality of expansion wires are electrically connected to the plurality of terminals, respectively, to lead out the plurality of terminals, wherein an orthographic projection of at least one expansion wire on the base substrate completely covers an orthographic projection of a terminal electrically connected to the expansion wire on the base substrate.

公开(公告)号：US11216637B2

公开(公告)日：2022-01-04

申请号：US16316448

申请日：2018-04-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian Gao ,  Xiaochuan Chen ,  Yafeng Yang ,  Pengcheng Lu

IPC: G06K9/00 ,  G02B6/42 ,  G06K9/20

Abstract: An optical fingerprint recognition device and a display device are disclosed. The optical fingerprint recognition device includes: a light source; a light guide plate including two light guide surfaces parallel to each other; a first volume grating, a second volume grating, respectively provided on one of the two light guide surface; and a light detector. The light detector is provided at a side of the light guide plate away from the second volume grating and configured to detect intensity distribution of the light exported by the second volume grating. The first volume grating is configured to import light emitted by the light source into the light guide plate. The light guide plate is configured to perform total reflection to the light imported into the light guide plate. The second volume grating is configured to export light propagated in the light guide plate.

公开(公告)号：US11126054B2

公开(公告)日：2021-09-21

申请号：US15767849

申请日：2017-09-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Xianqin Meng ,  Jifeng Tan

IPC: G02F1/137 ,  G02F1/29 ,  F21V8/00 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13 ,  G02B30/26

Abstract: A display panel and a display device are provided. The display panel includes: a lower substrate and an upper substrate cell-assembled together; a light-emitting control layer disposed between the lower substrate and the upper substrate; and a plurality of pixel units defined by a plurality of data lines and gate lines intersected with each other. Each pixel unit includes a plurality of subpixel areas. One or more side surfaces of the lower substrate are configured to receive incidence of the collimated light. The light-emitting control layer is configured to control the light-emitting directions and the light-emitting colors of the subpixel areas, to allow the light-emitting directions of the subpixel areas toward the central portion of the display panel. The light-emitting control layer is also configured to control the display grayscale of the subpixel areas.

公开(公告)号：US20210174052A1

公开(公告)日：2021-06-10

申请号：US15780215

申请日：2017-10-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jifeng Tan ,  Yafeng Yang

IPC: G06K9/00 ,  G06F3/041 ,  H01L27/32 ,  H01L51/52 ,  G06F3/042 ,  H01L27/146

Abstract: A fingerprint identification device, a touch display panel and a method for controlling fingerprint identification are provided in embodiments of the disclosure. The fingerprint identification device includes: a photoelectric sensor; and an optical waveguide, arranged on a touch substrate at another side, and configured to be in touch with a fingerprint, and comprising waveguide material portions and medium material portions, each of the waveguide material portions and each of the medium material portions being spaced apart from each other; and a light irradiating into the waveguide material portions is delivered to the surface(s) of the waveguide material portions facing away from the touch substrate after total reflections at interfaces between the medium material portions and the waveguide material portions. If a portion of valleys of the fingerprint gets in touch with the surface(s), since the portion of valleys is filled with air, then the light returns by total reflection so as to be identified by the photoelectric sensor; if a portion of ridges of the fingerprint gets in touch with the surface(s), the light at the portion of ridges is reflected by diffuse reflection so as not to be reflected back for identification by the photoelectric sensor. The fingerprint identification in embodiments of the disclosure is adapted to various display devices.

公开(公告)号：US10969616B2

公开(公告)日：2021-04-06

申请号：US16077427

申请日：2018-01-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian Gao ,  Xiaochuan Chen ,  Yafeng Yang ,  Jifeng Tan ,  Xianqin Meng ,  Pengcheng Lu

IPC: G02F1/1335 ,  G02F1/1343

Abstract: The present disclosure relates to a display mode controlling device, a controlling method thereof and a display device. The display mode controlling device includes: a first substrate including a plurality of lens units arranged in an array, each of the lens units is provided with an annular diffractive phase grating; a second substrate aligned with the first substrate; a liquid crystal (LC) layer located between the first substrate and the second substrate; and a control electrode configured to generate a predetermined electric field to control a deflection state of a LC molecule.