Liquid crystal display device having masking films being connected by conductors which extend across the central portions of the display electrodes
AssigneeSharp Kabushiki Kaisha
InventorsYukiko Ichimura, Kojiro Tsubota
Life of this patent
Estimating the term…
Abstract
First display electrodes are formed on a first electrode substrate. Second display electrodes are formed on a second electrode substrate in such a direction as to intersect at right angles with the first display electrodes. In order to obtain a liquid crystal display device provided with a screen having a large contrast ratio, masking films for intermittently masking regions between the display electrodes, formed on at least one of the first electrode substrate, and the second electrode substrate are formed on the display electrodes on the other electrode substrate.
Claims16
A liquid crystal display device comprising:
- a first substrate;
- a second substrate, the first substrate and the second substrate opposing each other;
- a plurality of first display electrodes formed on the first substrate;
- a plurality of second display electrodes formed on the second substrate in a direction perpendicular to the first display electrodes;
- a liquid crystal layer located between the first substrate and the second substrate;
- and
- a plurality of masking films for intermittently masking regions between the display electrodes formed on at least one of the first and second substrates, said masking films being formed on the display electrodes on the other substrate of said first and second substrates, said masking films being further connected to one another in the middle part of the second display electrodes by wires having a low resistance and a width of 30 .mu.m or less.
A liquid crystal display device comprising:
- a first substrate;
- a second substrate, the first substrate and the second substrate opposing each other;
- a plurality of color filters formed in a first direction on the first substrate;
- a plurality of black mask elements formed on the first substrate between the respective color filters;
- a plurality of first display electrodes formed over the plurality of color filters and the plurality of black mask elements on the first substrate in a second direction perpendicular to the first direction;
- a plurality of second display electrodes formed on the second substrate in the first direction and perpendicular to the first display electrodes, the plurality of black mask elements being formed at locations intermediate the second display electrodes;
- a liquid crystal layer located between the first substrate and the second substrate;
- a plurality of masking films formed over the second display electrodes for intermittently masking regions intermediate the first display electrodes, said masking films being interconnected by relatively low resistance wire type conductors having a width of 30 .mu.m or less and which extend across respective central portions of the second display electrodes.
A liquid crystal display device comprising:
- a first substrate;
- a plurality of first display electrodes formed on said first substrate;
- a second substrate opposing said first substrate;
- a plurality of second display electrodes formed on the second substrate in a direction perpendicular to the first display electrodes;
- a plurality of black mask members formed on said first substrate for intermittently masking regions between the second display electrodes;
- a plurality of masking films of relatively low transmissivity formed over the second display electrodes for intermittently masking regions between the first display electrodes;
- and
- a plurality of low resistance conductors having a width substantially smaller than the width of said second display electrodes, said conductors connecting neighboring masking film portions of said plurality of masking films and extending across respective central portions of said second display electrodes,
- said masking films and said black mask members masking all portions of said first and second display electrodes other than pixel portions thereof, whereby the contrast ratio and color purity of the display device is improved.
Dependencies are inferred from the claim text.