Display device mounted with read function and electric appliance
First Claim
Patent Images
1. A display device comprising:
- a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first transistor over the substrate;
a second transistor over the substrate;
an image pick-up element over the substrate and electrically connected to the second transistor;
a light emitting element electrically connected to the first transistor;
an insulating layer; and
a light-shielding layer over the insulating layer, wherein the insulating layer is formed under the light emitting element, and formed over the first transistor, the second transistor and the image pick-up element, and wherein the light-shielding layer has openings over the light emitting element and over the image pick-up element.
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Abstract
According to the present invention, a material having a light-shielding property is used for a bank layer surrounding the edge of a light-emitting element. Accordingly, light which is not reflected by an object to be read out can be prevented from entering an image pick-up element, and information on the object to be read out can be correctly read out. The display device mounted with a read function according to the present invention includes a thin film transistor and an image pick-up element over a substrate having an insulating surface, an insulating layer covering a thin film transistor and an image pick-up element, a light-emitting element provided over the insulating layer, and a bank layer having a light-shielding property surrounding the edge of the light-emitting element. The bank layer has an opening portion in a position overlapping with the image pick-up element.
71 Citations
51 Claims
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1. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first transistor over the substrate;
a second transistor over the substrate;
an image pick-up element over the substrate and electrically connected to the second transistor;
a light emitting element electrically connected to the first transistor;
an insulating layer; and
a light-shielding layer over the insulating layer, wherein the insulating layer is formed under the light emitting element, and formed over the first transistor, the second transistor and the image pick-up element, and wherein the light-shielding layer has openings over the light emitting element and over the image pick-up element. - View Dependent Claims (7, 13, 19, 25, 34, 43)
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2. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first transistor over the substrate;
a second transistor over the substrate;
an image pick-up element over the substrate and electrically connected to the second transistor;
a light emitting element electrically connected to the first transistor;
a coloring layer over the light emitting element;
an insulating layer; and
a light-shielding layer over the insulating layer, wherein the insulating layer is formed under the light emitting element, and formed over the first transistor, the second transistor and the image pick-up element, and wherein the light-shielding layer has openings over the light emitting element and over the image pick-up element. - View Dependent Claims (8, 14, 20, 26, 44)
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3. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first transistor over the substrate;
a second transistor over the substrate;
a third transistor over the substrate;
a fourth transistor over the substrate;
an image pick-up element over the substrate and electrically connected to the fourth transistor;
a first light emitting element electrically connected to the first transistor;
a second light emitting element electrically connected to the second transistor;
a third light emitting element electrically connected to the third transistor;
an insulating layer; and
a light-shielding layer over the insulating layer;
wherein the insulating layer is formed under the first light emitting element, the second light emitting element and the third light emitting element, and formed over the first transistor, the second transistor, the third transistor, the fourth transistor and the image pick-up element, and wherein the light-shielding layer having has openings over the first light emitting element, over the second light emitting element, over the third light emitting element and over the image pick-up element. - View Dependent Claims (9, 15, 21, 27, 45)
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4. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first transistor over the substrate;
a second transistor over the substrate;
a third transistor over the substrate;
a fourth transistor over the substrate;
an image pick-up element over the substrate and electrically connected to the fourth transistor;
a first light emitting element electrically connected to the first transistor;
a second light emitting element electrically connected to the second transistor;
a third light emitting element electrically connected to the third transistor;
a first coloring layer over the first light emitting element;
a second coloring layer over the second light emitting element;
a third coloring layer over the third light emitting element, an insulating layer; and
a light-shielding layer over the insulating layer;
wherein the insulating layer is formed under the first light emitting element, the second light emitting element and the third light emitting element, and formed over the first transistor, the second transistor, the third transistor, the fourth transistor and the image pick-up element, and wherein the light-shielding layer having has openings over the first light emitting element, over the second light emitting element, over the third light emitting element and over the image pick-up element. - View Dependent Claims (10, 16, 22, 28, 46)
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5. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprising;
comprises;
a first transistor over the substrate;
a second transistor over the substrate;
a third transistor over the substrate;
a fourth transistor over the substrate;
a fifth transistor over the substrate;
a sixth transistor over the substrate;
a first image pick-up element over the substrate and electrically connected to the fourth transistor;
a second image pick-up element over the substrate and electrically connected to the fifth transistor;
a third image pick-up element over the substrate and electrically connected to the sixth transistor;
a first light emitting element electrically connected to the first transistor;
a second light emitting element electrically connected to the second transistor;
a third light emitting element electrically connected to the third transistor;
an insulating layer; and
a light-shielding layer over the insulating layer;
wherein the insulating layer is formed under the first light emitting element, the second light emitting element and the third light emitting element, and formed over the first transistor, the second transistor, the third transistor, the fourth transistor, the fifth transistor, the sixth transistor, the first image pick-up element, the second image pick-up element and the third image pick-up element, and wherein the light-shielding layer having has openings over the first light emitting element, over the second light emitting element, over the third light emitting element, over the first image pick-up element, over the second image pick-up element and over the third image pick-up element. - View Dependent Claims (11, 17, 23, 29, 47)
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6. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first transistor over the substrate;
a second transistor over the substrate;
a third transistor over the substrate;
a fourth transistor over the substrate;
a fifth transistor over the substrate;
a sixth transistor over the substrate;
a first image pick-up element over the substrate and electrically connected to the fourth transistor;
a second image pick-up element over the substrate and electrically connected to the fifth transistor;
a third image pick-up element over the substrate and electrically connected to the sixth transistor;
a first light emitting element electrically connected to the first transistor;
a second light emitting element electrically connected to the second transistor;
a third light emitting element electrically connected to the third transistor;
a first coloring layer over the first light emitting element;
a second coloring layer over the second light emitting element;
a third coloring layer over the third light emitting element, an insulating layer; and
a light-shielding layer over the insulating layer;
wherein the insulating layer is formed under the first light emitting element, the second light emitting element and the third light emitting element, and formed over the first transistor, the second transistor, the third transistor, the fourth transistor, the fifth transistor, the sixth transistor, the first image pick-up element, the second image pick-up element and the third image pick-up element, and wherein the light-shielding layer has openings over the first light emitting element, over the second light emitting element, over the third light emitting element, over the first image pick-up element, over the second image pick-up element and over the third image pick-up element. - View Dependent Claims (12, 18, 24, 30, 48)
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31. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first sub pixel having a first light-emitting element;
a second sub pixel having a second light-emitting element; and
a third sub pixel having an image pick-up element;
wherein a total area of the second sub pixel and the third sub pixel is substantially equal to the area of the first sub pixel. - View Dependent Claims (37, 40, 49)
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32. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first sub pixel having a first light-emitting element exhibiting red emission;
a second sub pixel having a second light-emitting element exhibiting green emission;
a third sub pixel having a third light-emitting element exhibiting blue emission; and
a fourth sub pixel having an image pick-up element;
wherein an area of the first sub pixel is substantially equal to an area of the third sub pixel, and wherein a total area of the second sub pixel and the fourth sub pixel is substantially equal to the area of the first sub pixel. - View Dependent Claims (35, 38, 41, 50)
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33. A display device comprising:
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a substrate having an insulating surface; and
a plurality of pixels, wherein each of the plurality of pixels comprises;
a first sub pixel having a first light-emitting element exhibiting red emission;
a second sub pixel having a second light-emitting element exhibiting green emission;
a third sub pixel having a third light-emitting element exhibiting blue emission; and
a fourth sub pixel having an image pick-up element;
wherein a total area of the first sub pixel, the second sub pixel, and the fourth sub pixel is twice as large as an area of the third sub pixel. - View Dependent Claims (36, 39, 42, 51)
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Specification
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Current AssigneeSemiconductor Energy Laboratory Co., Ltd.
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Original AssigneeSemiconductor Energy Laboratory Co., Ltd.
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InventorsYamazaki, Shunpei
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current257/59
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CPC Class CodesG06F 3/0412 Digitisers structurally int...G06V 40/1318 using electro-optical eleme...G09G 2300/0443 with several sub-pixels for...G09G 2300/0842 forming a memory circuit, e...G09G 2360/14 Detecting light within disp...G09G 3/32 semiconductive, e.g. using ...H01L 27/12 the substrate being other t...H01L 27/1214 comprising a plurality of T...H01L 27/14621 Colour filter arrangementsH01L 27/14645 Colour imagersH01L 27/14678 Contact-type imagersH10K 59/122 Pixel-defining structures o...H10K 59/13 comprising photosensors tha...H10K 59/65 OLEDs integrated with inorg...
