公开(公告)号：US12265244B2

公开(公告)日：2025-04-01

申请号：US18459260

申请日：2023-08-31

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Ji Li ,  Hanming Li ,  Guang Zeng ,  Fang Tan ,  Hongshan Yin ,  Kai Chen

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/1337

Abstract: Disclosed are an optical film, a polarizer, and a display device. The optical film includes a resin and a light diffuser mixed with the resin. The light diffuser includes a whisker and a modifying group attached to a surface of the whisker. The modifying group has a structural formula of —X-A-R, wherein X is selected from SO3 or PO4H, A is selected from a single bond, a substituted or unsubstituted aromatic hydrocarbon group containing 6 to 20 ring atoms, or an imidazolinyl group, and R is selected from a substituted or unsubstituted alkyl group containing 2 to 20 carbon atoms, a substituted or unsubstituted siloxy group containing 2 to 20 carbon atoms, or an alkylolamide group containing 2 to 20 carbon atoms.

公开(公告)号：US12117689B1

公开(公告)日：2024-10-15

申请号：US18263208

申请日：2023-06-21

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Ji Li ,  Hanming Li ,  Guang Zeng ,  Fang Tan ,  Hongshan Yin ,  Kai Chen

IPC: G02F1/1335 ,  G02B5/30

CPC classification number: G02F1/133531 ,  G02B5/3008 ,  G02F2202/022

Abstract: The present application provides a polarizer and a liquid crystal display device. The polarizer includes a resin layer, the resin layer includes a whisker, an acute angle is formed by a long-axis direction of each of the whiskers and a bottom surface of the resin layer, and the acute angle is greater than 0° and less than or equal to 40°.

公开(公告)号：US11846846B1

公开(公告)日：2023-12-19

申请号：US18086680

申请日：2022-12-22

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Yuan Shao ,  Ji Li ,  Fang Tan ,  Jiacong Guo ,  Guang Zeng ,  Yue Wang

IPC: G02F1/1335

CPC classification number: G02F1/133531

Abstract: A display panel includes a thin film transistor (TFT) array substrate, an opposite substrate, and a liquid crystal layer disposed between the TFT array substrate and the opposite substrate. The TFT array substrate includes a first substrate. The opposite substrate includes a second substrate. The display panel further includes a first viewing-angle improving layer disposed between the first substrate and the second substrate. The first viewing-angle improving layer adjoins one film layer on the first substrate or the second substrate. The first viewing-angle improving layer is disposed between the first substrate and the second substrate so that the first viewing-angle improving layer can be a stacked part manufactured integratedly with other film layers of the display panel. Thus, manufacture of the first viewing-angle improving layer can overcome a size limitation of a mold in a nanoimprinting technology, effectively improving a large-viewing-angle-display effect of a large-size display panel.

公开(公告)号：US11644707B1

公开(公告)日：2023-05-09

申请号：US17899754

申请日：2022-08-31

Applicant: Huizhou China Star Optoelectronics Display Co., Ltd. ,  TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Guang Zeng ,  Yuan Shao ,  Yue Wang ,  Hongshan Yin

IPC: G02F1/1335 ,  G02F1/13363 ,  G02F1/13

CPC classification number: G02F1/133504 ,  G02F1/13363 ,  G02F1/1323

Abstract: A viewing angle expansion film, a method for preparing the same, and a display device are provided. The viewing angle expansion film includes a first film layer having a flat layer, a plurality of first projections, and a plurality of second projections, and a second film layer disposed on the first film layer. The plurality of first projections and the plurality of second projections are arrayed on the flat layer. The second film layer is filled in gaps between the first projections and the second projections adjacent to the first projections, gaps between adjacent first projections, and gap between adjacent second projections. A refractive index of the second film layer is greater than a refractive index of the first film layer.

公开(公告)号：US12092912B2

公开(公告)日：2024-09-17

申请号：US17990306

申请日：2022-11-18

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Guang Zeng ,  Yue Wang ,  Yuan Shao ,  Fang Tan

IPC: G02F1/13 ,  B82Y20/00 ,  G02B5/02 ,  G02F1/1335

CPC classification number: G02F1/1323 ,  G02B5/02 ,  G02F1/133502 ,  G02F1/133504 ,  G02F1/133528 ,  B82Y20/00 ,  G02B2207/101

Abstract: A viewing angle widening film, a manufacturing method thereof, and a display device are provided. A first film layer of the viewing angle widening film includes protrusions spaced apart from each other and extended along a first direction. The protrusions include a first protrusion and a second protrusion arranged on a side of the first protrusion away from a flat layer, a surface of the second protrusion on a side away from the flat layer is an arc surface, and a diffusion effect of the second protrusion is weaker than that of the first protrusion.