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US 5,739,880 AGranted
Liquid crystal display device having a shielding film for shielding light from a light source
AssigneeHitachi, Ltd.
InventorsMasahiko Suzuki, Tsutomu Isono, Kimitoshi Ohgiichi, Akira Ishii, Jun-ichi Ohwada
Life of this patent
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Abstract
In a liquid crystal display in which the region around a display region is reduced, a black matrix BM is made of a colored organic resin. Substantially all over the periphery of a seal member SL, there are formed portions in which the seal member SL and the black matrix BM are and are not overlapped. A shielding tape TAPE is stuck to that portion of the lower face of a lower transparent glass substrate SUB1, which corresponds to the non-overlapped portion, to prevent the leakage of light from the seal portion.
Claims19
A liquid crystal display device comprising:
- a first substrate having a display region formed by arranging a plurality of pixel electrodes and thin film transistors for selecting said pixel electrodes, in a matrix shape over a transparent insulating substrate;
- a second substrate composed of a transparent insulating substrate and overlapping with said first substrate with a liquid crystal layer being disposed therebetween;
- a seal member formed in peripheral edge portions of said first and second substrates, around a region in which said liquid crystal layer exists outside said display region, and interposed between said first and second substrates to fix the substrates;
- an upper case covering peripheries of said first and second substrates, having an opening for exposing said display region to an outside, and composed of a shielding frame;
- illuminating means for illuminating a face of said first substrate opposed to said second substrate with a light;
- and
- a black matrix composed of a light shielding film, covering said thin film transistors, and provided on said second substrate;
- wherein said black matrix overlaps said seal member partially and covers a region between said display region and said seal member,
- wherein said black matrix in said seal member has a portion not overlapping said upper case, and
- wherein shielding means is mounted in a region not covered with said upper case and said black matrix, at a face of said first substrate opposed to a face confronting said seal member.
7 more elements
A liquid crystal display device comprising:
- a first substrate having a display region formed by arranging a plurality of pixel electrodes in a matrix shape over a transparent insulating substrate;
- a second substrate composed of a transparent insulating substrate and overlapping with said first substrate through with a liquid crystal layer being disposed therebetween;
- a seal member formed in peripheral edge portions of said first and second substrates, around a region in which said liquid crystal layer exists outside said display region, and interposed between said first and second substrates to fix the substrates;
- an upper case covering peripheries of said first and second substrates, having an opening for exposing said display region to an outside, and composed of a shielding frame;
- illuminating means for illuminating a face of said first substrate opposed to said second substrate with a light;
- and
- a black matrix composed of a light shielding film, covering a peripheral portion of said pixel electrodes, and provided on said second substrate;
- wherein said black matrix overlaps said seal member partially and covers, a region between said display region and said seal member,
- wherein said black matrix in a region, in which said seal member exists has a portion not overlapping said upper case, and
- wherein shielding means is mounted in a region not covered with said upper case and said black matrix at a face of said first substrate opposed to a face confronting said seal member.
7 more elements
A liquid crystal display device comprising:
- a first substrate having a display region formed by arranging a plurality of scanning signal lines and a plurality of video signal lines composed of a metal layer over an insulating substrate and by forming pixels composed of pixel electrodes and thin film transistors corresponding to the individual intersections between said plurality of scanning signal lines and said plurality of video signal lines;
- a second substrate composed of a transparent insulating substrate and overlapping with said first substrate with a liquid crystal layer being disposed therebetween;
- a seal member formed in peripheral edge portions of said first and second substrates, around a region in which said liquid crystal layer exists outside said display region, and interposed between said first and second substrates to fix the substrates;
- and
- an upper case covering the peripheries of said first and second substrates, having an opening for exposing said display region to an outside, and composed of a shielding frame;
- wherein said plurality of scanning signal lines and said plurality of video signal lines are extended to an outside of a region which is surrounded by said seal member, and connected to an external circuit,
- wherein said second substrate includes thereon a black matrix composed of a shielding film covering said thin film transistors,
- wherein said black matrix overlaps with said seal member partially and covers a region between said display region and said seal member,
- wherein said black matrix in said seal member has a portion not overlapping with said upper case, and
- wherein in a region in which said seal member is not covered with said upper case, a portion in which said scanning signal lines and said video signal lines exist is covered with said black matrix.
7 more elements
Dependencies are inferred from the claim text.