Colour active matrix displays
First Claim
1. A method of manufacturing a color active matrix display device, the method comprising acts of:
- providing a rigid carrier substrate having a plurality of islands separated from each other by a separating space;
covering the rigid carrier substrate including the islands and the separating space with a plastic substrate having a substantially uniform thickness for maintaining outlines of the islands and the separating space;
forming an array of pixel circuits substantially over portions of the plastic substrate covering the islands and portions covering the separating space;
forming a display layer over the array of pixel circuits;
releasing the rigid carrier substrate and its islands from the plastic substrate after forming the display layer, the outlines of the islands forming channels in the plastic substrate; and
filling the channels with color filter portions to define an array of color filter portions.
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Accused Products
Abstract
A method of manufacturing a color active matrix display device comprises forming islands over a rigid carrier substrate, forming a plastic substrate over the rigid carrier substrate, forming an array of pixel circuits over the plastic substrate and forming a display layer over the array of pixel circuits. The rigid carrier substrate is then released from the plastic substrate and the plastic substrate then has channels defined by the islands. These are filled to define color filter portions. The formation of a plastic substrate on a rigid carrier, with the use of a subsequent lift off process, enables the circuit arrays to be made on very thin plastic sheets. The color filters can then be made on the outside of the LC cell. Depressions are formed in the plastic substrate registered to the circuit array, and these are filled in with color filter material, for example by ink jet printing.
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Citations
24 Claims
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1. A method of manufacturing a color active matrix display device, the method comprising acts of:
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providing a rigid carrier substrate having a plurality of islands separated from each other by a separating space; covering the rigid carrier substrate including the islands and the separating space with a plastic substrate having a substantially uniform thickness for maintaining outlines of the islands and the separating space; forming an array of pixel circuits substantially over portions of the plastic substrate covering the islands and portions covering the separating space; forming a display layer over the array of pixel circuits; releasing the rigid carrier substrate and its islands from the plastic substrate after forming the display layer, the outlines of the islands forming channels in the plastic substrate; and filling the channels with color filter portions to define an array of color filter portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A color display device, comprising:
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a rigid carrier substrate having a plurality of islands separated by space; a plastic substrate having a substantially uniform thickness for covering the rigid carrier substrate including the islands and the separating space and for maintaining outlines of the islands and the separating space; an array of thin film pixel circuits deposited over portions of the plastic substrate covering the islands and portions covering the separating space; a display layer over the array of pixel circuits; channels formed by the outlines in the plastic substrate when the rigid carrier substrate is released; and an array of color filter portions provided in the channels on the opposite side of the plastic substrate to the array of thin film pixel circuits. - View Dependent Claims (22, 23, 24)
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Specification