Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
A liquid crystal display device, comprising: a first substrate; a plurality of picture element electrodes arranged in a matrix on the first substrate, each picture element electrode being associated with a switching element which comprises a plurality of thin film transistors connected in series, gate electrodes of the plurality of thin film transistors being electrically connected to each other, the thin film transistors having lightly doped regions between a source/drain region and a channel region, the lightly doped region being of the same conductivity type to that of the source/drain region; a second substrate opposed to the first substrate and having an electrode on an inner surface thereof; and a liquid crystal layer disposed between the first and second substrates.
Claim 2
Dependent Claim
37 words
A liquid crystal display device as claimed in claim 1, wherein said thin film transistors have a first lightly doped region between source and channel regions, and a second lightly doped region between channel and drain regions.
Claim 3
Dependent Claim
24 words
A liquid crystal display device as claimed in claim 1, wherein said switching element comprises a pair of thin film transistors connected in series.
Claim 4
Dependent Claim
47 words
A liquid crystal display device as claimed in claim 3, wherein one of said thin film transistors has a first lightly doped region only between source and channel regions, and the other thin film transistor has a second lightly doped region only between drain and channel regions.
Claim 5
Dependent Claim
28 words
A liquid crystal display device as claimed in claim 3, wherein said pair of thin film transistors have two lightly doped regions at both ends of source/drain region.
Claim 6
Dependent Claim
42 words
A liquid crystal display device as claimed in claim 3, wherein said pair of thin film transistors have a first lightly doped region at end of drain region and a second lightly doped region at end of drain side of source/drain region.
Claim 7
Dependent Claim
24 words
A liquid crystal display device as claimed in claim 1, wherein each thin film transistor has a channel length no longer than 5 µm.
Claim 8
Dependent Claim
40 words
A liquid crystal display device as claimed in claim 1, wherein said plurality of thin film transistors have a plurality of lightly doped regions, at least one of which has a different length than that of another lightly doped region.
Claim 9
Dependent Claim
40 words
A liquid crystal display device as claimed in claim 8, wherein said lightly doped region having a different length is a region arranged the most closely to the picture element electrode, the region having a length longer than another regions.
Claim 10
Dependent Claim
41 words
A liquid crystal display device as claimed in claim 1, wherein said plurality of thin film transistors have a plurality of lightly doped regions, at least one of which has a different doping characteristic than that of another lightly doped regions.
Claim 11
Dependent Claim
44 words
A liquid crystal display device as claimed in claim 10, wherein said lightly doped region having a different doping characteristic is a region arranged the most closely to the picture element electrode, the region having a lower doping characteristic than another lightly doped regions.