公开(公告)号：US20230359099A1

公开(公告)日：2023-11-09

申请号：US18177100

申请日：2023-03-01

Applicant: E Ink Holdings Inc.

Inventor： Po-Yuan LO ,  Ian FRENCH ,  Somnath MONDAL ,  Jau-Min DING

IPC: G02F1/167 ,  G02F1/1677 ,  G02F1/1335 ,  G02F1/16757

CPC classification number: G02F1/1677 ,  G02F1/133514 ,  G02F1/167 ,  G02F1/16757 ,  G02F2201/08 ,  G02F2202/36 ,  G02F2203/02

Abstract: A reflective display device includes an electrophoretic display (EPD) module, an optical layer, a color filter layer, and at least one quantum dot (QD). The optical layer is located above the electrophoretic display module. The color filter layer is located on the optical layer. The quantum dot is located between the optical layer and the electrophoretic display module. When first light passes through the optical layer and transmits to the quantum dot, the quantum dot emits second light, and the electrophoretic display module is configured to reflect the second light to irradiate outwards from the color filter layer.