SEMI-FINISHED DISPLAY PANELS
First Claim
1. A semi-finished display panel comprising an array of display cells sandwiched between two temporary substrate layers, between a temporary substrate layer and a conductor layer or between a temporary substrate layer and a permanent substrate layer, wherein said display cells are filled with an electrophoretic fluid and top-sealed with a polymeric sealing layer formed from a top-sealing composition which is being hardened while on top of the electrophoretic fluid.
2 Assignments
0 Petitions
Accused Products
Abstract
This application is directed to electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies. The semi-finished display panel comprises an array of display cells sandwiched between two temporary substrate layers, between a temporary substrate layer and a conductor layer or between a temporary substrate layer and a permanent substrate layer, wherein said display cells are filled with an electrophoretic fluid and top-sealed with a polymeric sealing layer formed from a top-sealing composition which is being hardened while on top of the electrophoretic fluid.
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Citations
16 Claims
- 1. A semi-finished display panel comprising an array of display cells sandwiched between two temporary substrate layers, between a temporary substrate layer and a conductor layer or between a temporary substrate layer and a permanent substrate layer, wherein said display cells are filled with an electrophoretic fluid and top-sealed with a polymeric sealing layer formed from a top-sealing composition which is being hardened while on top of the electrophoretic fluid.
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7. A process for the preparation of a semi-finished display panel, which process comprises the steps of:
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a) forming microcups on a temporary substrate layer, b) filling the microcups with an electrophoretic fluid, c) top-sealing the filled microcups with a top-sealing composition which is being hardened while on top of the electrophoretic fluid, and d) applying a conductor layer or a permanent substrate layer onto the top-sealed microcups. - View Dependent Claims (8)
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9. A process for the manufacture of a semi-finished display panel, which process comprises the steps of:
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a) forming microcups on a conductor layer or a permanent substrate layer, b) filling the microcups with an electrophoretic fluid, c) top-sealing the filled microcups with a top-sealing composition which is being hardened while on top of the electrophoretic fluid, and d) applying a temporary substrate layer onto the top-sealed microcups. - View Dependent Claims (10)
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11. A process for the manufacture of a multi-color semi-finished display panel, which process comprises the steps of:
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a) forming microcups on a temporary substrate layer, b) laminating or coating the microcups with a layer of a positive photoresist, c) imagewise exposing the positive photoresist to selectively open the microcups in a predetermined area, d) filling the opened microcups with an electrophoretic fluid of a first color, e) top-sealing the microcups filled with said electrophoretic fluid of the first color, f) repeating steps c) to e) in different areas to generate microcups filled with electrophoretic fluids of different colors, g) removing residual positive photoresist, if any, and h) applying a conductor layer or a permanent substrate layer onto the top-sealed microcups. - View Dependent Claims (12, 13)
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14. A process for the manufacture of a multi-color semi-finished display panel, which process comprises the steps of:
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a) forming microcups on a conductor layer or a permanent substrate layer, b) laminating or coating the microcups with a layer of a positive photoresist, c) imagewise exposing the positive photoresist to selectively open the microcups in a predetermined area, d) filling the opened microcups with an electrophoretic fluid of a first color, e) top-sealing the microcups filled with the electrophoretic fluid of the first color, f) repeating steps c) to e) in different areas to generate microcups filled with electrophoretic fluids of different colors, g) removing residual positive photoresist, if any, and h) applying a temporary substrate layer onto the top-sealed microcups. - View Dependent Claims (15, 16)
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Specification