US 12,085,793 B2Granted

Cholesteric liquid crystal display device

AssigneeIris Optronics Co., Ltd.

InventorsWu-Chang Yang, Hung Tien Chen, Chi-Chang Liao

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Abstract

A cholesteric liquid crystal display device includes a first substrate, a solar cell, a shielding layer, a first electrode layer, a cholesteric liquid crystal layer, a second electrode layer and a second substrate stacked sequentially from bottom to top. The solar cell includes a metal wiring pattern layer. The shielding layer corresponds to the upper side of the metal wiring pattern layer, and is used to reduce the reflection of light from the metal circuit pattern layer. In this way, the cholesteric liquid crystal display device replaces the traditional black absorbing layer with the black material of the solar cell, which can not only absorb light, but also display the image with self-sustaining power. The cholesteric liquid crystal display device shields the arrangement of the metal wiring pattern layer through the shielding layer, which can ensure the image quality of the display panel.

Claims5

Dependent claims

A cholesteric liquid crystal display device which has a display area and a non-display area, comprising:

a first substrate, a solar cell, a shielding layer, a first electrode layer, a cholesteric liquid crystal layer, a second electrode layer, and a second substrate stacked sequentially from bottom to top, and a flattening layer which is filled in the space between adjacent regions of the shielding layer and disposed between the first substrate and the first electrode layer and the top surfaces of the flattening layer and the shielding layer are in alignment and the top surfaces of the flattening layer and the shielding layer share the same plane;
wherein the solar cell comprises a metal wiring pattern layer, the metal wiring pattern layer located within the display area;
and
wherein the shielding layer is located within the display area and disposed between the solar cell and the first electrode layer and corresponds to and over the metal wiring pattern layer so as to lessen the reflectivity of the incident light with respect to the metal wiring pattern layer.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 18/098,673Filed 18 Jan 2023
Priority: TW 11110230720 Jan 2022
Published: US 2023/0229034 A120 Jul 2023
Granted: 10 Sep 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G02F 1/13324
Circuit arrangements or driving methods for the control of single liquid crystal cells: circuits comprising solar cells
G02F 1/133512
Filters, e.g. light shielding masks: light shielding layers, e.g. black matrix
G02F 1/13718
Characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction…
G02F 2201/48
Constructional arrangements not provided for in groups G02F1/00 - G02F7/00: flattening arrangements