Substrate for colored cholesteric liquid crystal display allowing cholesteric liquid crystal material to be filled by surface tension without vacuum
AssigneeAdvanced Display Systems, Inc.
InventorsYao Dong Ma, Bao-Gang Wu, Jianmi Gao, Jianan Hou, Yong-Jing Wang, Qihui J. Zhang
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Abstract
A substrate for a multi-color liquid crystal display (LCD), an LCD having the substrate, and methods of manufacturing the substrate and the LCD. In one embodiment, the substrate includes: (1) a substantially planar base and (2) a cell wall structure, located on a surface of the base, that defines at least first and second sets of independent cells having corresponding independent fluid fill ports when the cell wall structure is bonded to an opposing substrate.
Claims28
A substrate for a reflective cholesteric liquid crystal display (CLCD), comprising:
- a substantially planar base;
- and
- a cell wall structure, located on a surface of said base, that defines at least first and second sets of independent cells having corresponding fluid fill ports when said cell wall structure is bonded to an opposing substrate and wherein said independent cells are sufficiently narrow as to allow a reflective cholesteric liquid crystal material to be filled by surface tension without vacuum.
A method of manufacturing a substrate for a reflective colored cholesteric liquid crystal display (CLCD), comprising the steps of:
- forming a substantially planar base;
- and
- forming a cell wall structure on a surface of said base, said cell wall structure defining at lease first and second sets of independent cells having corresponding independent fluid fill ports when said cell wall structure is bonded to an opposing substrate and wherein said independent cells are sufficiently narrow as to allow a reflective cholesteric liquid crystal material to be filled by surface tension without vacuum.
A reflective multi-color cholesteric liquid crystal display (CLCD), comprising:
- a first substrate;
- a cell wall structure, located on a surface of said first substrate, that defines a plurality of recesses on said first substrate;
- a second substrate, joined to said cell wall structure, whereby said recesses form at least first and second sets of independent cells bounded by said cell wall structure and said first and independent fluid fill ports and wherein said independent cells are sufficiently narrow as to allow a reflective cholesteric liquid crystal (CLC) material to be filled by surface tension without vacuum;
- a first CLC fill fluid located in said first set of independent cells;
- and
- a second CLC fill fluid located in said second set of independent cells, said first CLC fill fluid having a different intrinsic wavelength from said second CLC fill fluid.
A method of manufacturing a reflective colored cholesteric liquid crystal display (CLCD), comprising the steps of:
- forming a first substrate having a cell wall structure located thereon that defines a plurality of recesses on said first substrate;
- joining a second substrate to said cell wall structure, whereby said recesses form at least first and second sets of independent cells bounded by said cell wall structure and said first and second substrates, said first and second sets of independent cells having corresponding independent fluid fill ports and wherein said independent cells are sufficiently narrow as to allow a reflective cholesteric liquid crystal (CLC) material to be filled by surface tension without vacuum;
- introducing a first CLC fill fluid into said first set of independent cells;
- introducing a second CLC fill fluid into said second set of independent cells, said first CLC fill fluid having a different intrinsic wavelength from said second CLC fill fluid;
- and
- sealing said fluid fill ports whereby said first and second CLC fill fluids are retained in said first and second sets of independent cells.
Dependencies are inferred from the claim text.