EL display device
First Claim
1. A display device comprising:
- a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising an organic material; and
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive.
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Accused Products
Abstract
Plurality of pixels (102) are arranged on the substrate. Each of the pixels (102) is provided with an EL element which utilizes as a cathode a pixel electrode (105) connected to a current control TFT (104). On a counter substrate (110), a light shielding film (112) is disposed at the position corresponding to periphery of each pixel (102), while a color filter (113) is disposed at the position corresponding to each of the pixels (102). This light shielding film makes the contour of the pixels clear, resulting in an image display with high definition. In addition, it is possible to fabricate the EL display device of the present invention with most of an existing manufacturing line for liquid crystal display devices. Thus, an amount of equipment investment can be significantly reduced, thereby resulting in a reduction in the total manufacturing cost.
242 Citations
60 Claims
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1. A display device comprising:
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a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising an organic material; and
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A display device comprising:
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a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising an organic material; and
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive, and wherein the closed space between the first and second substrates is filled with inert gas. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A display device comprising:
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a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising an organic material; and
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive, and wherein a drying agent is provided in the closed space between the first and second substrates. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A display device comprising:
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a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising an organic material; and
a passivation film over the second electrode;
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive, and wherein the passivation film covers the second electrode and extends beyond an edge of the adhesive. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A display device comprising:
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a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising an organic material; and
a passivation film over the second electrode;
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive, and wherein the closed space between the first and second substrates is filled with inert gas, and wherein the passivation film covers the second electrode and extends beyond an edge of the adhesive. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A display device comprising:
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a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising an organic material; and
a passivation film over the second electrode;
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive, and wherein a drying agent is provided in the closed space between the first and second substrates, and wherein the passivation film covers the second electrode and extends beyond an edge of the adhesive. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53)
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54. A display device comprising:
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a pixel portion comprising a first thin film transistor and a driving circuit portion comprising a second thin film transistor over a first substrate;
a first electrode over the first transistor;
a light emitting layer comprising an organic material formed over the first electrode;
a second electrode over the light emitting layer comprising the organic material;
a second substrate opposed to the first substrate by an adhesive, thereby, forming a closed space between the first and second substrates, and a color filter on the second substrate, wherein the pixel portion and the driving circuit portion are located in a region surrounded by the adhesive. - View Dependent Claims (55, 56, 57, 58, 59, 60)
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Specification