Light-emitting device and manufacturing method thereof
First Claim
1. A light-emitting device comprising:
- a first substrate having a first surface and a second surface which is a rear surface of the first surface;
a light-emitting element over the first surface of the first substrate;
a second substrate;
a pixel circuit for driving the light-emitting element over the second substrate, the second substrate being provided to face the second surface of the first substrate; and
a third substrate being provided to face the first surface of the first substrate so as to cover the light-emitting element,wherein the light-emitting element is electrically connected to the pixel circuit.
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Accused Products
Abstract
To prevent a point defect and a line defect in forming a light-emitting device, thereby improving the yield. A light-emitting element and a driver circuit of the light-emitting element, which are provided over different substrates, are electrically connected. That is, a light-emitting element and a driver circuit of the light-emitting element are formed over different substrates first, and then electrically connected. By providing a light-emitting element and a driver circuit of the light-emitting element over different substrates, the step of forming the light-emitting element and the step of forming the driver circuit of the light-emitting element can be performed separately. Therefore, degrees of freedom of each step can be increased, and the process can be flexibly changed. Further, steps (irregularities) on the surface for forming the light-emitting element can be reduced than in the conventional technique.
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Citations
24 Claims
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1. A light-emitting device comprising:
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a first substrate having a first surface and a second surface which is a rear surface of the first surface; a light-emitting element over the first surface of the first substrate; a second substrate; a pixel circuit for driving the light-emitting element over the second substrate, the second substrate being provided to face the second surface of the first substrate; and a third substrate being provided to face the first surface of the first substrate so as to cover the light-emitting element, wherein the light-emitting element is electrically connected to the pixel circuit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A light-emitting device comprising:
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a first substrate having a first surface and a second surface which is a rear surface of the first surface; a light-emitting element over the first surface of the first substrate; a second substrate; a pixel circuit for driving the light-emitting element over the second substrate, the second substrate being provided to face the second surface of the first substrate; and a third substrate being provided to face the first surface of the first substrate so as to cover the light-emitting element, wherein the pixel circuit comprises a driving transistor for driving the light-emitting element; and wherein the driving transistor is electrically connected to the light-emitting element. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A light-emitting device comprising:
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a first substrate; a light-emitting element over the first substrate; an insulating film which covers the light-emitting element; a second substrate; and a row driver and a column driver for driving the light-emitting element over the second substrate, the second substrate being provided to face the first substrate so as to cover the light-emitting element, wherein the light-emitting element is electrically connected to the row driver or the column driver through the insulating film. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A manufacturing method of a light-emitting device, comprising the steps of:
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forming a light-emitting element over a first substrate; forming an insulating film over the light-emitting element; forming a separation layer over a second substrate; forming a layer comprising a pixel circuit for driving the light-emitting element over the separation layer; separating the layer comprising the pixel circuit for driving the light-emitting element from the second substrate; and attaching the first substrate and the layer comprising the pixel circuit for driving the light-emitting element to each other so that the first substrate and the layer comprising the pixel circuit for driving the light-emitting element face each other, thereby electrically connecting the light-emitting element to the pixel circuit. - View Dependent Claims (20, 21)
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22. A manufacturing method of a light-emitting device, comprising the steps of:
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forming a light-emitting element over a first substrate; forming an insulating film over the light-emitting element; forming a layer comprising a pixel circuit for driving the light-emitting element over a second substrate; processing the second substrate to be thinner; and attaching the first substrate and the second substrate to each other so that the first substrate and the second substrate face each other, thereby electrically connecting the light-emitting element to the pixel circuit. - View Dependent Claims (23, 24)
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Specification