Color cholesteric liquid crystal display devices and fabrication methods thereof
AssigneeIndustrial Technology Research Institute
InventorsDa-Wei Lee, Jyh-Wen Shiu, Yuan-Chang Liao, Jen-Chieh Yang
Life of this patent
Estimating the term…
Abstract
Single-layered color cholesteric liquid crystal display devices and fabrication methods thereof are provided. The color cholesteric liquid crystal display device includes a first substrate structure having a base and periodic protrusion banks. A second substrate structure is disposed opposite the first substrate structure to enclose the periodic protrusion banks, and divide a plurality of color sub-pixel channels. A plurality of color cholesteric liquid crystals are respectfully filled in each of the color sub-pixel channel, wherein the base and the periodic protrusion banks are made of continuously integral material.
Claims24
A color cholesteric liquid crystal display device, comprising:
- a first substrate with a base portion and a periodic protruding bank portion;
- a second substrate opposing the first substrate to create a plurality of color sub-pixel channels;
- a thin-film layer on the base portion corresponding to a location of each of the color sub-pixel channels, wherein the thin-film layer comprises a photoresist;
- and
- a plurality of color cholesteric liquid crystals respectively filled in each of the color sub-pixel channels,
- wherein the base portion and the periodic protruding bank portion are a continuous unified structure.
A fabrication method for a color cholesteric liquid crystal display device, comprising:
- providing a first substrate;
- forming a patterning mask layer on the first substrate;
- etching the first substrate to create a base portion and a periodic protruding bank portion;
- forming a first conductive layer on the first substrate;
- removing the mask layer and the first conductive layer thereon, leaving a first electrode on the base portion along a first direction;
- providing a second substrate with a second electrode along a second direction;
- assembling the first substrate and the second substrate to adhere the periodic protruding bank portion to the second substrate and divide a plurality of color sub-pixel channels;
- and
- sequentially injecting a plurality of color cholesteric liquid crystals in the corresponding color sub-pixel channels and sealing each of the color sub-pixel channels with a sealant material.
A fabrication method for a color cholesteric liquid crystal display device, comprising:
- providing a first substrate;
- forming a thin-film layer on the first substrate;
- imprinting the first substrate with a template to create a base portion and a periodic protruding bank portion;
- depositing a first conductive layer on the first substrate;
- removing the thin-film layer on the periodic protruding bank portion and the first conductive layer on the thin-film layer, leaving a first electrode on the base portion along a first direction;
- providing a second substrate with a second electrode along a second direction;
- assembling the first substrate and the second substrate to adhere the periodic protruding bank portion to the second substrate and divide a plurality of color sub-pixel channels;
- and
- sequentially injecting a plurality of color cholesteric liquid crystals in the corresponding color sub-pixel channels and sealing each of the color sub-pixel channels with a sealant material.
Dependencies are inferred from the claim text.