Matrix type display device and manufacturing method thereof
First Claim
1. A matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions;
- wherein a difference in height is formed in the boundary between each of the predetermined positions and the periphery thereof, for selectively coating the optical material.
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Abstract
An object of the invention is to improve patterning accuracy while maintaining low cost, high throughput and a high degree of freedom of an optical material in a matrix type display device and a manufacturing method thereof.
In order to achieve the object, a difference in height, a desired distribution of liquid repellency and lyophilicity, or a desired potential distribution is formed by utilizing first bus lines in a passive matrix type display device or utilizing scanning lines, signal lines, common current supply lines, pixel electrodes, an interlevel insulation film, or a light shielding layer in an active matrix type display device. A liquid optical material is selectively coated at predetermined positions by utilizing the difference in height, the desired distribution of liquid repellency and lyophilicity, or the desired potential distribution.
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Citations
49 Claims
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1. A matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions;
wherein a difference in height is formed in the boundary between each of the predetermined positions and the periphery thereof, for selectively coating the optical material.
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2. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a difference in height at the boundary between each of the predetermined positions on the display substrate and the peripheries thereof, for coating the liquid optical material; and
coating the liquid optical material at the predetermined positions by using the difference in height. - View Dependent Claims (3, 4, 14, 15)
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5. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a plurality of first bus lines on the display substrate;
forming a difference in height in the boundary between each of the predetermined positions on the display substrate and the periphery thereof, for coating the liquid optical material;
coating the liquid optical material at the predetermined positions by using the difference in height;
forming a plurality of second bus lines crossing the first bus lines to cover the optical material. - View Dependent Claims (9, 12, 13)
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6. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a plurality of first bus lines on the display substrate;
forming a difference in height in the boundary between each of the predetermined positions on the display substrate and the periphery thereof, for coating the liquid optical material;
coating the liquid optical material at the predetermined positions by using the difference in height;
forming a plurality of second bus lines on a peeling substrate through a peeling layer; and
transferring the structure peeled off from the peeling layer on the peeling substrate onto the display substrate coated with the optical material so that the first bus lines cross the second bus lines.
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7. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming, on the display substrate, wiring including a plurality of scanning lines and signal lines, pixel electrodes respectively corresponding to the predetermined positions, and switching elements for controlling the states of the pixel electrodes in accordance with the state of the wiring;
forming a difference in height in the boundary between each of the predetermined positions on the display substrate and the periphery thereof, for coating the liquid optical material; and
coating the liquid optical material at the predetermined positions by using the difference in height. - View Dependent Claims (10, 11, 16, 17, 18, 19, 32, 47, 48, 49)
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8. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a difference in height in the boundary between each of the predetermined positions on the display substrate and the periphery thereof, for coating the liquid optical material;
coating the liquid optical material at the predetermined positions by using the difference in height;
forming wiring including a plurality of scanning lines and signal lines, pixel electrodes respectively corresponding to the predetermined positions, and switching elements for controlling the states of the pixel electrodes in accordance with the state of the wiring on a peeling substrate through a peeling layer; and
transferring the structure peeled off from the peeling layer on the peeling substrate onto the display substrate.
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20. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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enhancing the lyophilicity at the predetermined positions on the display substrate relative to the lyophilicity of the peripheries thereof; and
coating the liquid optical material at the predetermined positions. - View Dependent Claims (31, 33, 41, 42, 43, 44)
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21. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a plurality of first bus lines on the display substrate;
enhancing the lyophilicity at the predetermined positions on the display substrate relative to the lyophilicity of the peripheries thereof;
coating the liquid optical material at the predetermined positions; and
forming a plurality of second bus lines crossing the first bus lines to cover the optical material. - View Dependent Claims (25, 28, 30)
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22. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a plurality of first bus lines on the display substrate;
enhancing the lyophilicity at the predetermined positions on the display substrate relative to the lyophilicity of the peripheries thereof;
coating the liquid optical material at the predetermined positions;
forming a plurality of second bus lines on a peeling substrate through a peeling layer; and
transferring the structure peeled off from the peeling layer on the peeling substrate onto the display substrate coated with the optical material so that the first bus lines cross the second bus lines. - View Dependent Claims (26, 27, 29)
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23. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming, on the display substrate, wiring including a plurality of scanning lines and signal lines, pixel electrodes respectively corresponding to the predetermined positions, and switching elements for controlling the states of the pixel electrodes in accordance with the state of the wiring;
enhancing the lyophilicity at the predetermined positions on the display substrate relative to the lyophilicity of the peripheries thereof; and
coating the liquid optical material at the predetermined positions.
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24. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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enhancing the lyophilicity at the predetermined positions on the display substrate relative to the lyophilicity of the peripheries thereof;
coating the liquid optical material at the predetermined positions;
forming wiring including a plurality of scanning lines and signal lines, pixel electrodes respectively corresponding to the predetermined positions, and switching elements for controlling the states of the pixel electrodes in accordance with the state of the wiring on a peeling substrate through a peeling layer; and
transferring the structure peeled off from the peeling layer on the peeling substrate onto the display substrate.
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34. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a potential distribution on the display substrate so that the potential at each of the predetermined positions differs from the periphery thereof; and
selectively coating the liquid optical material at the predetermined positions by utilizing the potential distribution. - View Dependent Claims (46)
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35. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a potential distribution on the display substrate so that the potential at each of the predetermined positions differs from the periphery thereof; and
coating the liquid optical material at the predetermined positions after charging the optical material to a potential at which a repulsive force is generated between each of the predetermined positions and the periphery thereof. - View Dependent Claims (40, 45)
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36. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a plurality of first bus lines on the display substrate;
forming a potential distribution on the display substrate so that the potential at each of the predetermined positions differs from the periphery thereof;
coating the liquid optical material at the predetermined positions after charging the optical material to a potential at which a repulsive force is generated between each of the predetermined positions and the periphery thereof; and
forming a plurality of second bus lines crossing the first bus lines to cover the optical material.
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37. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a plurality of first bus lines on the display substrate;
forming a potential distribution on the display substrate so that the potential at each of the predetermined positions differs from the periphery thereof;
coating the liquid optical material at the predetermined positions after charging the optical material to a potential at which a repulsive force is generated between each of the predetermined positions and the periphery thereof;
forming a plurality of second bus lines on a peeling substrate through a peeling layer; and
transferring the structure peeled off from the peeling layer on the peeling substrate onto the display substrate coated with the optical material so that the first bus lines cross the second bus lines.
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38. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming, on the display substrate, wiring including a plurality of scanning lines and signal lines, pixel electrodes respectively corresponding to the predetermined positions, and switching elements for controlling the states of the pixel electrodes in accordance with the state of the wiring;
forming a potential distribution on the display substrate so that the potential at each of the predetermined positions differs from the periphery thereof; and
coating the liquid optical material at the predetermined positions after charging the optical material to a potential at which a repulsive force is generated between each of the predetermined positions and the periphery thereof.
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39. A method of manufacturing a matrix type display device comprising an optical material selectively arranged at predetermined positions on a display substrate, the optical material being liquid at least during coating at the predetermined positions, the method comprising the steps of:
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forming a potential distribution on the display substrate so that the potential at each of the predetermined positions differs from the periphery thereof;
coating the liquid optical material at the predetermined positions after charging the optical material to a potential at which a repulsive force is generated between each of the predetermined positions and the periphery thereof;
forming wiring including a plurality of scanning lines and signal lines, pixel electrodes respectively corresponding to the predetermined positions, and switching elements for controlling the states of the pixel electrodes in accordance with the state of the wiring on a peeling substrate through a peeling layer; and
transferring the structure peeled off from the peeling layer on the peeling substrate onto the display substrate.
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Specification