Liquid crystal display device and manufacturing method for same
AssigneesHitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
InventorsHideyuki Shintani, Shinichi Soto, Hiroshi Saeki, Osamu Nagashima, Tomokazu Ishikawa
Life of this patent
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Abstract
Liquid crystal is sandwiched between a first substrate in rectangular form and a second substrate in rectangular form, pixel electrodes and a first alignment film are formed on the first substrate, a counter electrode and a second alignment film are formed on the second substrate, the second alignment film is rubbed in a direction at an angle in a range of 45°+/−3° relative to one side of the second substrate, the counter electrode is provided with a protruding pad portion, and the direction in which the pad portion extends is to an angle of 15° or more and 35° or less with the side of the second substrate.
Claims8
A liquid crystal display device, comprising:
- a first substrate in rectangular form and a second substrate in rectangular form that is positioned so as to face the first substrate with liquid crystal in between;
- pixel electrodes that are respectively formed in a number of pixel regions which form an image display region on the surface of said first substrate on the liquid crystal side, and a first alignment film that is formed on said image display region so as to make contact with said liquid crystal;
- and
- a counter electrode that is formed on the surface of said second substrate on the liquid crystal side so as to cover said number of pixel regions over the entirety of said image display region, and a second alignment film that is formed on said image display region so as to make contact with said liquid crystal, wherein
- said second alignment film is rubbed at an angle in a range of 45°+/−3° relative to one side of said second substrate,
- said counter electrode is provided with a pad portion that protrudes from at least part of the side in the direction in which the second alignment film is rubbed and electrically leads out onto said first substrate through a conductive material that is located between said second substrate and said first substrate so as to make contact with said pad portion, and
- the direction in which the two sides of said pad portion which protrudes from said counter electrode extend is set to angle of 15° or more and 35° or less relative to the side of said second substrate which crosses the extended line of the side of the pad portion.
A manufacturing method for a liquid crystal display device comprising:
- a first substrate in rectangular form and a second substrate in rectangular form that is positioned so as to face the first substrate with liquid crystal in between;
- pixel electrodes that are respectively formed in a number of pixel regions which form an image display region on the surface of said first substrate on the liquid crystal side, and a first alignment film that is formed on said image display region so as to make contact with said liquid crystal;
- and
- a counter electrode that is formed on the surface of said second substrate on the liquid crystal side so as to cover said number of pixel regions over the entirety of said image display region, and a second alignment film that is formed on said image display region so as to make contact with said liquid crystal and rubbed at an angle in a range of 45°+/−3° relative to one side of said second substrate, wherein
- said counter electrode is provided with a pad portion that protrudes from at least part of the side in the direction in which the second alignment film is rubbed and electrically leads out onto said first substrate through a conductive material that is located between said second substrate and said first substrate so as to make contact with the pad portion, wherein
- the direction in which the two sides of said pad portion which protrudes from said counter electrode extend is set to angle of 15° or more and 35° or less relative to the side of said second substrate which crosses the extended line of the side of the pad portion, and
- said second alignment film is rubbed in a direction at an angle in a range of 45°+/−3° relative to one side of said second substrate.
Dependencies are inferred from the claim text.