公开(公告)号：US20230229027A1

公开(公告)日：2023-07-20

申请号：US17875047

申请日：2022-07-27

申请人： Entire Technology Co., Ltd.

发明人： Chih-Wen Yang ,  Yu Wei Chang

IPC分类号： G02F1/017 ,  G02F1/13357

CPC分类号： G02F1/01791 ,  G02F1/133606 ,  G02F1/133603

摘要： The invention refers to a quantum dot light diffuser plate that can be assembled on a backlight module with blue LEDs as the bottom light source. Microstructures having concave portions and convex portions are formed on the surface of the diffuser plate. A quantum dot layer comprising green quantum dots and red quantum dots is applied only on the concave portions of the microstructures, and thus is separated by the convex portions into small parts independent of each other. A water-blocking and gas-blocking layer is arranged on the upper surface of the quantum dot layer. The water vapor and oxygen from the outside cannot penetrate the side end faces of the quantum dot layer and invade the entire quantum dot layer, such that, the diffuser plate of the invention can have the advantages of simple process, low cost and high production yield.

公开(公告)号：US12066697B2

公开(公告)日：2024-08-20

申请号：US17875047

申请日：2022-07-27

申请人： Entire Technology Co., Ltd.

发明人： Chih-Wen Yang ,  Yu Wei Chang

IPC分类号： G02F1/017 ,  G02F1/13357

CPC分类号： G02F1/01791 ,  G02F1/133603 ,  G02F1/133606

摘要： The invention refers to a quantum dot light diffuser plate that can be assembled on a backlight module with blue LEDs as the bottom light source. Microstructures having concave portions and convex portions are formed on the surface of the diffuser plate. A quantum dot layer comprising green quantum dots and red quantum dots is applied only on the concave portions of the microstructures, and thus is separated by the convex portions into small parts independent of each other. A water-blocking and gas-blocking layer is arranged on the upper surface of the quantum dot layer. The water vapor and oxygen from the outside cannot penetrate the side end faces of the quantum dot layer and invade the entire quantum dot layer, such that, the diffuser plate of the invention can have the advantages of simple process, low cost and high production yield.

公开(公告)号：US12098840B2

公开(公告)日：2024-09-24

申请号：US17391822

申请日：2021-08-02

申请人： Entire Technology Co., Ltd.

发明人： Chih-Wen Yang ,  Chia-Yin Yao ,  Mao-Hsing Lin ,  Tsung-Han Lee

IPC分类号： B29D11/00 ,  B29B7/14 ,  B29C44/50 ,  B29C48/00 ,  B29C48/07 ,  B29C48/35 ,  B29C48/87 ,  B29C48/88 ,  B29C48/92 ,  B29D7/01 ,  C08L69/00 ,  F21V9/30 ,  G02B5/02 ,  B29K69/00 ,  B29K105/00 ,  B29K105/04 ,  C09K11/06 ,  C09K11/08 ,  F21Y115/10

CPC分类号： F21V9/30 ,  B29B7/14 ,  B29C44/50 ,  B29C48/0012 ,  B29C48/0019 ,  B29C48/07 ,  B29C48/35 ,  B29C48/87 ,  B29C48/914 ,  B29C48/92 ,  B29D7/01 ,  B29D11/00798 ,  C08L69/00 ,  G02B5/0242 ,  G02B5/0278 ,  B29C2948/92704 ,  B29C2948/92904 ,  B29K2069/00 ,  B29K2105/0032 ,  B29K2105/04 ,  C09K11/06 ,  C09K11/08 ,  F21Y2115/10

摘要： A light diffusion plate is configured to be assembled with a blue light source module having blue Mini LEDs to form a white light backlight module. The light diffusion plate is added with organic dyes with light-emission wavelength of 490-650 nm in order to convert the blue light into white light. The light diffusion plate is made by a foaming extrusion process and contains a plurality of micro-bubbles with a size of 60-400 μm and a weight-reduction ratio of 15-25% for improving the uniformity of white light and resolving the MURA problem. The size of micro-bubbles is controlled by reducing the temperature of at the exit end of the T-die head, such that the wavelength of the white light emitted from the light diffusion plate can be narrower to achieve the effect of wider color gamut display.