Thin film liquid crystal display with optical shield having wide portion over transistor with no acute angles

An organic optical shielding film structure for a liquid crystal display, said organic optical shielding film structure being provided over a substrate on which a plurality of signal lines extend in parallel to each other with a first distance between them in a first direction as well as a plurality of scanning lines extend in parallel to each other with a second distance between them in a second direction substantially vertical to said first direction to form rectangular-shaped matrixes defined by said signal lines and said scanning lines, each of said rectangular-shaped matrixes being formed with a thin film transistor positioned at its one corner and a pixel electrode extending over substantially an entire region of said each matrix except for said thin film transistor, said organic optical shielding film structure comprising a plurality of organic optical shielding films,

• wherein each of which comprises:
• a straight stripe portion which both extends over said scanning line and has a width at least equal to a distance between said pixel electrodes in said first direction;
• and
• expanding portions extending from said straight stripe portion to cover said thin film transistors, said expanding portions being tapered so that said each organic optical shielding film is shaped to be free of any acute angle corners and the right angle corner.

An optical shielding structure for a liquid crystal display, said optical shielding structure comprising both organic optical shielding films provided over a first substrate and metal optical shielding films provided over a second substrate, said first substrate being provided thereon with a plurality of signal lines extending in parallel to each other with a first distance between them in a first direction as well as a plurality of scanning lines extending in parallel to each other with a second distance between them in a second direction substantially vertical to said first direction to form rectangular-shaped matrixes defined by said signal lines and said scanning lines, each of said rectangular-shaped matrixes being formed with a thin film transistor positioned at its one corner and a pixel electrode extending over substantially an entire region of said each matrix except for said thin film transistor,

• wherein each of said organic optical shielding films comprises:
• a straight stripe portion which both extends over said signal line and has a width at least equal to a distance between said pixel electrodes in said second direction;
• and
• expanding portions extending from said straight stripe portion to cover said thin film transistors, said expanding portions being tapered so that said each organic optical shielding film is shaped to be free of any acute angle corners and the right angle corner, and
• wherein each of said metal optical shielding films both extends over said scanning line and has a width at least equal to a distance between said pixel electrodes in said first direction.

An optical shielding structure for a liquid crystal display, said optical shielding structure comprising both organic optical shielding films provided over a first substrate and metal optical shielding films provided over a second substrate, said first substrate being provided thereon with a plurality of signal lines extending in parallel to each other with a first distance between them in a first direction as well as a plurality of scanning lines extending in parallel to each other with a second distance between them in a second direction substantially vertical to said first direction to form rectangular-shaped matrixes defined by said signal lines and said scanning lines, each of said rectangular-shaped matrixes being formed with a thin film transistor positioned at its one corner and a pixel electrode extending over substantially an entire region of said each matrix except for said thin film transistor,

• wherein each of said organic optical shielding films comprises:
• a straight stripe portion which both extends over said scanning line and has a width at least equal to a distance between said pixel electrodes in said first direction;
• and
• expanding portions extending from said straight stripe portion to cover said thin film transistors, said expanding portions being tapered so that said each organic optical shielding film is shaped to be free of any acute angle corners and the right angle corner, and
• wherein each of said metal optical shielding films both extends over said signal line and has a width at least equal to a distance between said pixel electrodes in said second direction.

A liquid crystal display comprising:

• first and second substrates being provided to define a gap between them and sandwiching a liquid crystal layer;
• a plurality of signal lines extending over said first substrate in parallel to each other with a first distance between them in a first direction;
• a plurality of scanning lines extending over said second substrate in parallel to each other with a second distance between them in a second direction substantially vertical to said first direction to form rectangular-shaped matrixes defined by said signal lines and said scanning lines;
• a plurality of thin film transistors being provided in said rectangular-shaped matrixes at one corner thereof;
• a plurality of pixel electrodes extending over substantially an entire region of said each matrix except for said thin film transistor,
• wherein each of said organic optical shielding films comprises:
• a straight stripe portion which both extends over said signal line and has a width at least equal to a distance between said pixel electrodes in said second direction;
• and
• expanding portions extending from said straight stripe portion to cover said thin film transistors, said expanding portions being tapered so that said each organic optical shielding film is shaped to be free of any acute angle corners and the right angle corner, and
• wherein each of said metal optical shielding films both extends over said scanning line and has a width at least equal to a distance between said pixel electrodes in said first direction.

A liquid crystal display comprising:

• first and second substrates being provided to define a gap between them and sandwiching a liquid crystal layer;
• a plurality of signal lines extending over said first substrate in parallel to each other with a first distance between them in a first direction;
• a plurality of scanning lines extending over said second substrate in parallel to each other with a second distance between them in a second direction substantially vertical to said first direction to form rectangular-shaped matrixes defined by said signal lines and said scanning lines;
• a plurality of thin film transistors being provided in said rectangular-shaped matrixes at one corner thereof;
• a plurality of pixel electrodes extending over substantially an entire region of said each matrix except for said thin film transistor,
• wherein each of said organic optical shielding films comprises:
• a straight stripe portion which both extends over said scanning line and has a width at least equal to a distance between said pixel electrodes in said first direction;
• and
• expanding portions extending from said straight stripe portion to cover said thin film transistors, said expanding portions being tapered so that said each organic optical shielding film is shaped to be free of any acute angle corners and the right angle corner, and
• wherein each of said total optical shielding films both extends over said signal line and has a width at least equal to a distance between said pixel electrodes in said second direction.