Display units having two insolating films and a planarizing film and process for producing the same
First Claim
1. A liquid crystal display unit comprising:
- a first substrate;
a second substrate opposing to said first substrate;
pixel driving elements disposed on said first substrate and between said first and second substrates;
a first insulation layer deposited over said first substrate and said pixel driving elements;
a planarizing film, formed on said first insulation layer, for providing a substantially flat surface over said first substrate to minimize a height of a step present between an area corresponding to each pixel driving element and an area locating adjacent to said pixel driving element on said first substrate;
a second insulation layer formed on said planarizing film;
display electrodes formed on said second insulation layer and electrically connected to said pixel driving elements, respectively; and
a liquid crystal layer located between said first and second substrates.
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Accused Products
Abstract
A liquid crystal display unit is described, which includes a first substrate, a second substrate opposing to the first substrate, pixel driving elements, first and second insulation layers, a planarizing film and a liquid crystal layer. The pixel driving elements are disposed on the first substrate and between the first and second substrates. The first insulation layer is deposited over the first substrate and the pixel driving elements. The planarizing film is formed on the first insulation layer. This planarizing film provides a substantially flat surface over the first substrate to minimize a height of a step present between an area corresponding to each pixel driving element and an area locating adjacent to the pixel driving element on the first substrate. The second insulation layer is formed on the planarizing film. The display electrodes are formed on the second insulation layer and electrically connected to the pixel driving elements, respectively. The liquid crystal layer is located between the first substrate and said second substrate.
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Citations
26 Claims
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1. A liquid crystal display unit comprising:
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a first substrate; a second substrate opposing to said first substrate; pixel driving elements disposed on said first substrate and between said first and second substrates; a first insulation layer deposited over said first substrate and said pixel driving elements; a planarizing film, formed on said first insulation layer, for providing a substantially flat surface over said first substrate to minimize a height of a step present between an area corresponding to each pixel driving element and an area locating adjacent to said pixel driving element on said first substrate; a second insulation layer formed on said planarizing film; display electrodes formed on said second insulation layer and electrically connected to said pixel driving elements, respectively; and a liquid crystal layer located between said first and second substrates. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A built-in driver type liquid crystal display unit comprising a first substrate, a second substrate opposing to the first substrate, a pixel portion and a driving circuit adjacent to the pixel potion, said pixel portion and said driving circuit being formed on said first substrate,
wherein said pixel portion includes: -
pixel driving elements disposed on said first substrate and between said first and second substrate; a first insulation layer deposited over said first substrate; a planarizing film, formed on said first insulation layer, for providing a substantially flat surface over said first substrate to minimize a height of a step present between an area corresponding to each pixel driving element and an area located adjacent to said pixel driving element on said first substrate; a second insulation layer formed on said planarizing film; display electrodes formed on said second insulation layer and electrically connected to said pixel driving elements, respectively; and a liquid crystal layer located between said first and second substrates; and wherein said driving circuit includes; circuit elements disposed on said first substrate; a first insulation layer deposited over said circuit elements; and a second insulation layer formed on said first insulation layer of said driving circuit. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A process for producing a liquid crystal display unit having a pixel portion containing pixel driving elements, said process comprising the steps of:
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forming the pixel driving elements on a substrate; forming a first insulation film over an entire surface of said substrate and over said pixel driving elements; forming a planarizing film to provide a substantially flat surface on said first insulation film; forming a second insulation film on said planarizing film; and forming, on said second insulation film, display electrodes which are connected to said pixel driving elements respectively. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A process for producing a built-in driver type display unit having a pixel portion and a driving circuit therefor which are formed on a substrate, said process comprising the steps of:
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forming the pixel driving elements on said substrate within the area corresponding to said pixel portion; forming circuit elements on said substrate within the area corresponding to said drive circuit; forming a first insulation film over the entire surface of said substrate and over said pixel driving elements and said circuit elements; forming a planarizing film to provide a substantially flat surface on said first insulation film; removing a portion of said planarizing film at the area corresponding to said driving circuit to expose said first insulation film; forming a second insulation film on the remaining planarizing film and on said first insulation film thus exposed; and forming display electrodes on said second insulation film within the area corresponding to said pixel portion, said display electrodes being connected to said pixel driving elements respectively. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification