公开(公告)号：US10534192B2

公开(公告)日：2020-01-14

申请号：US15679026

申请日：2017-08-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian Gao ,  Xiaochuan Chen ,  Yafeng Yang ,  Can Zhang ,  Wei Wang ,  Xinli Ma ,  Jifeng Tan ,  Can Wang ,  Qian Wang

IPC: G02B27/22

Abstract: A stereo display panel is disclosed. The stereo display panel has: a collimated light display structure having first and second display regions configured to display left-eye and right-eye images respectively; and a light-redirecting structure disposed on a light exit surface of the collimated light display structure. The light-redirecting structure has a first portion and a second portion to deflect collimated light beams exiting from the first and second display regions towards predetermined left-eye viewing position and right-eye viewing position respectively, such that left-eye and right-eye virtual images seen by left and right eyes are located at a light incidence side of the collimated light display structure. A stereo display device having the stereo display panel is also disclosed.

公开(公告)号：US10444558B2

公开(公告)日：2019-10-15

申请号：US15750035

申请日：2017-07-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jifeng Tan ,  Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Jian Gao ,  Xinli Ma ,  Can Wang ,  Can Zhang ,  Xiandong Meng ,  Xianqin Meng ,  Dacheng Zhang

IPC: G02F1/1335 ,  G02F1/1343 ,  F21V8/00

Abstract: A display panel and a display device are disclosed and belong to the field of display technology. The display panel comprises a first substrate and a second substrate opposite to each other, a liquid crystal layer, a first electrode, and a second electrode between the first substrate and the second substrate, a waveguide layer between the first substrate and the liquid crystal layer, and a plurality of grating units which are combined with the liquid crystal layer and disposed in a same layer as the liquid crystal layer; wherein the first electrode and the second electrode are configured to adjust a refractive index of the liquid crystal layer by changing voltages applied thereto; and a coupling efficiency at which light is coupled out of the waveguide layer is determined according to a difference between a refractive index of the grating units and the refractive index of the liquid crystal layer.

公开(公告)号：US10345607B2

公开(公告)日：2019-07-09

申请号：US15749494

申请日：2017-06-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Jifeng Tan ,  Xinli Ma ,  Can Zhang ,  Can Wang ,  Jian Gao ,  Qian Wang

IPC: G02B27/22 ,  G02B5/20 ,  G02B5/18

Abstract: The present disclosure provides a display device. The display device comprises a display panel and a grating layer, wherein along a direction pointing from a center of a left-eye field-of-view central area to a non left-eye field-of-view central area, a grating period of a left-eye grating region of a first color, a grating period of a left-eye grating region of a second color, and a grating period of a left-eye grating region of a third color all decrease gradually; along a direction pointing from a center of a right-eye field-of-view central area to a non right-eye field-of-view central area, a grating period of a right-eye grating region of the first color, a grating period of a right-eye grating region of the second color, and a grating period of a right-eye grating region of the third color all decrease gradually.

公开(公告)号：US10247859B2

公开(公告)日：2019-04-02

申请号：US15554511

申请日：2017-02-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian Gao ,  Xiaochuan Chen ,  Yafeng Yang ,  Jifeng Tan ,  Pengcheng Lu ,  Qian Wang ,  Can Zhang ,  Can Wang ,  Xinli Ma ,  Wei Wang

IPC: G02B3/00 ,  G02F1/1335 ,  G09F9/30

Abstract: A virtual curved surface display panel and a display device are provided. The virtual curved surface display panel includes a flat display panel having a plurality of pixels arranged in a matrix, and an array of convex lenses arranged on a light exit surface of the flat display panel. The array of convex lenses makes a track of image distances of the pixels form a curved surface. By adjusting the focal lengths of the lenses, the image distances of the pixels in the flat display panel can be various. The images of the pixels are then distributed on a curved surface. A visual effect of a virtual curved surface can be achieved with a flat display panel, improving the effect of visual impact.

公开(公告)号：US10197880B2

公开(公告)日：2019-02-05

申请号：US15569784

申请日：2017-04-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian Wang ,  Xiaochuan Chen ,  Wenqing Zhao ,  Yafeng Yang ,  Jian Gao ,  Wei Wang ,  Jifeng Tan ,  Xiaochen Niu ,  Haiyan Wang

IPC: G02F1/133 ,  G02F1/137 ,  G02F1/29 ,  C09K19/02 ,  G02F1/13363

Abstract: A liquid crystal lens, a display device and a driving method of the display device are disclosed. The liquid crystal lens includes a first substrate, a second substrate, and a driving electrode layer and blue phase liquid crystals disposed between the first substrate and the second substrate; the driving electrode layer includes driving electrodes, each driving electrode includes at least two electrode pairs, the electrode pair includes two sub-electrodes which are disposed opposite to each other and can be applied with a voltage separately, and all the sub-electrodes in the same driving electrode are insulated from each other; the sub-electrodes of different electrode pairs in the same driving electrode are unparallel to each other; and the blue phase liquid crystals at different positions have deformations of different degrees in electrical fields with different intensities generated by the different sub-electrodes.

公开(公告)号：US20190033507A1

公开(公告)日：2019-01-31

申请号：US15752629

申请日：2017-08-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: F21V8/00 ,  G02F1/1343

Abstract: The disclosure provides a display device including an upper substrate (001) and a lower substrate (002) arranged opposite to each other, a liquid crystal layer (003), a wave guiding layer (004), electrode structures (005), and a collimated light source (006). The liquid crystal layer (003) is arranged between the upper substrate (001) and the lower substrate (002); the wave guiding layer (004) is arranged on a side of the lower substrate (002) facing the upper substrate (001), and a refractive index of the wave guiding layer (004) is at least greater than a refractive index of a film layer in contact with the wave guiding layer (004); the plurality of electrode structures (005) are arranged on a side of the upper substrate (001) facing the lower substrate (002), and the plurality of electrode structures (005) are arrayed in correspondence to sub-pixels in a one-to-one manner; and the collimated light source (006) is at least arranged on one side of the wave guiding layer (004). The display device can control a display grayscale.

公开(公告)号：US20180138243A1

公开(公告)日：2018-05-17

申请号：US15809158

申请日：2017-11-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Jing LV ,  Jifeng Tan ,  Can Zhang

IPC: H01L27/32 ,  G02B5/20 ,  G02B5/28 ,  H01L51/52

CPC classification number: H01L27/322 ,  G02B5/201 ,  G02B5/284 ,  H01L27/3211 ,  H01L51/5265 ,  H01L51/5271 ,  H01L51/5284 ,  H01L2251/558

Abstract: The present disclosure relates to a display device in the field of display. The display device comprises a plurality of sub-pixel areas, each of which corresponds to one color, wherein the display device comprises a reflecting interface, a photon conversion layer, and a light filter layer arranged sequentially along a display light emergent direction; in the sub-pixel area corresponding to a target color: the light filter layer is structured to transmit light within a first wavelength range in the display light emergent direction and reflect the light within a second wavelength range, wherein the first wavelength range refers to the wavelength range corresponding to the target color, and the second wavelength range includes a visible light waveband excluding the first wavelength range; the reflecting interface is structured to reflect the light from the light filter layer; and the photon conversion layer is structured to convert the transmitted light within a third wavelength range to the light within the first wavelength range, the third wavelength range is a preset wavelength range beyond the first wavelength range and the second wavelength range includes the third wavelength range. The present disclosure can improve the color conversion efficiency of the display device.

公开(公告)号：US09459496B2

公开(公告)日：2016-10-04

申请号：US14647726

申请日：2014-10-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Teruaki Suzuki ,  Guangkui Qin ,  Yafeng Yang ,  Xin Gu ,  Miki Kashima ,  Kiman Kim

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/133753 ,  G02F1/133512 ,  G02F1/133707 ,  G02F1/133784 ,  G02F1/134309 ,  G02F1/134363 ,  G02F2001/133757 ,  G02F2001/134345

Abstract: The present disclosure provides a display panel and a display device. The display panel includes a pixel unit including first and second sub-unit regions. Liquid crystal molecules in the liquid crystal layer corresponding to the first sub-unit region have a first initial alignment direction, and liquid crystal molecules in the liquid crystal layer corresponding to the second sub-unit region have a second initial alignment direction. The pixel unit further includes a third sub-unit region arranged between the first and second sub-unit regions. Liquid crystal molecules in the liquid crystal layer corresponding to the third sub-unit region have a third initial alignment direction, which is an alignment direction in a rotation from the first initial alignment direction towards the second initial alignment direction along a first rotation direction. An angle difference between the first and second initial alignment directions is greater than 0° and less than or equal to 90°.

Abstract translation: 本公开提供了一种显示面板和显示装置。 显示面板包括包括第一和第二子单元区域的像素单元。 对应于第一子单元区域的液晶层中的液晶分子具有第一初始取向方向，并且与第二子单元区域对应的液晶层中的液晶分子具有第二初始取向方向。 像素单元还包括布置在第一和第二子单元区域之间的第三子单元区域。 对应于第三子单元区域的液晶层中的液晶分子具有作为沿着第一旋转方向从第一初始取向方向朝向第二初始取向方向的旋转中的取向方向的第三初始取向方向。 第一和第二初始取向方向之间的角度差大于0°且小于或等于90°。

公开(公告)号：US20160041431A1

公开(公告)日：2016-02-11

申请号：US14647726

申请日：2014-10-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Teruaki Suzuki ,  Guangkui Qin ,  Yafeng Yang ,  Xin Gu ,  Miki Kashima ,  Kiman Kim

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/133753 ,  G02F1/133512 ,  G02F1/133707 ,  G02F1/133784 ,  G02F1/134309 ,  G02F1/134363 ,  G02F2001/133757 ,  G02F2001/134345

Abstract: The present disclosure provides a display panel and a display device. The display panel includes a pixel unit including first and second sub-unit regions. Liquid crystal molecules in the liquid crystal layer corresponding to the first sub-unit region have a first initial alignment direction, and liquid crystal molecules in the liquid crystal layer corresponding to the second sub-unit region have a second initial alignment direction. The pixel unit further includes a third sub-unit region arranged between the first and second sub-unit regions. Liquid crystal molecules in the liquid crystal layer corresponding to the third sub-unit region have a third initial alignment direction, which is an alignment direction in a rotation from the first initial alignment direction towards the second initial alignment direction along a first rotation direction. An angle difference between the first and second initial alignment directions is greater than 0° and less than or equal to 90°.

Abstract translation: 本公开提供了一种显示面板和显示装置。 显示面板包括包括第一和第二子单元区域的像素单元。 对应于第一子单元区域的液晶层中的液晶分子具有第一初始取向方向，并且与第二子单元区域对应的液晶层中的液晶分子具有第二初始取向方向。 像素单元还包括布置在第一和第二子单元区域之间的第三子单元区域。 对应于第三子单元区域的液晶层中的液晶分子具有作为沿着第一旋转方向从第一初始取向方向朝向第二初始取向方向的旋转中的取向方向的第三初始取向方向。 第一和第二初始取向方向之间的角度差大于0°且小于或等于90°。

公开(公告)号：US11361584B2

公开(公告)日：2022-06-14

申请号：US15780215

申请日：2017-10-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jifeng Tan ,  Yafeng Yang

IPC: G01B11/24 ,  G06V40/13 ,  G06F3/041 ,  G06F3/042 ,  H01L27/146 ,  H01L27/32 ,  H01L51/52

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.