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US 7,679,710 B2Granted
Liquid crystal display device and manufacturing method thereof
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorHideki Katsura
Life of this patent
Estimating the term…
Abstract
Relating to a method of manufacturing a liquid crystal display device, minimizing liquid crystal material loss and use of cleaning solvent, and providing a liquid crystal display device in which a seal pattern having few gap inconsistencies are taken as a objective. Liquid crystal material wraparound can be prevented by forming a seal stopper portion outside a peripheral seal portion, and in addition, by increasing the degree of symmetry of the seal pattern and by forming a damming portion between injection ports, gap inconsistencies within the liquid crystal display device can be reduced.
Claims7
A liquid crystal display device comprising:
- a pair of substrates having different sizes, at least one of the pair of substrates being transparent;
- a liquid crystal layer interposed between the pair of substrates;
- and
- a seal pattern being formed outside the liquid crystal layer and being formed between the pair of substrates, the seal pattern comprising a first portion and second portions;
- wherein the first portion is formed inside an area defined by the one of the pair of substrates;
- wherein the second portions of the seal pattern extend up to edges of the pair of substrates so that an injection port is formed at a corner of the pair of substrates;
- wherein the second portions are in contact with the edges of the pair of substrates;
- and
- wherein third portions of the seal pattern are formed outside and adjacent to the injection port and the third portions extend to the edges of the pair of substrates.
6 more elements
A liquid crystal display device comprising:
- a pair of substrates, at least one of the pair of substrates being transparent;
- a liquid crystal layer interposed between the pair of substrates;
- a seal pattern being formed outside the liquid crystal layer and being formed between the pair of substrates, the seal pattern comprising a first portion and second portions;
- wherein the first portion is formed inside an area defined by the one of the pair of substrates;
- wherein the second portions of the seal pattern extend up to edges of the pair of substrates so that an injection port is formed at a corner of the pair of substrates;
- wherein the second portions are in contact with the edges of the pair of substrates;
- and
- wherein additional portions of the seal pattern are formed in a corner opposite to the injection port.
5 more elements
A liquid crystal display device comprising:
- a pair of substrates, at least one of the pair of substrates being transparent;
- a liquid crystal layer interposed between the pair of substrates;
- a seal pattern being formed outside the liquid crystal layer and being formed between the pair of substrates, the seal pattern comprising a first portion and second portions;
- wherein the first portion is formed inside an area defined by the one of the pair of substrates;
- wherein the second portions of the seal pattern extend up to edges of the pair of substrates so that an injection port is formed at a corner of the pair of substrates;
- wherein the second portions are in contact with the edges of the pair of substrates;
- wherein third portions of the seal pattern are formed in a corner opposite to the injection port;
- and
- wherein fourth portions of the seal pattern are formed at two corners other than the injection port and the corner opposite to the injection port.
6 more elements
A liquid crystal display device, comprising:
- a pair of substrates, at least one of the pair of substrates being transparent;
- a liquid crystal layer interposed between the pair of substrates;
- a seal pattern being formed outside the liquid crystal layer and being formed between the pair of substrates, the seal pattern comprising a first portion and second portions;
- wherein the first portion is formed inside an area defined by the one of the pair of substrates;
- wherein the second portions of the seal pattern extend up to edges of the pair of substrates so that an injection port is formed at a corner of the pair of substrates;
- wherein the second portions are in contact with the edges of the pair of substrates,
- wherein third portions of the seal pattern are formed in a corner opposite to the injection port;
- wherein fourth portions of the seal pattern are formed at two corners other than the injection port and the corner opposite to the injection port;
- and
- wherein fifth portions are formed on an axis of symmetry of at least one of the substrates and extend to edges of the one of the substrates.
7 more elements
Dependencies are inferred from the claim text.