Back to results
US 5,691,793 AGranted
Liquid crystal display apparatus having gap adjusting means under the sealing region
AssigneeKabushiki Kaisha Toshiba
InventorsYoshihiro Watanabe, Hiroki Nakamura, Takako Sugawara
Life of this patent
Estimating the term…
Abstract
An object is to provide a liquid crystal display apparatus with an equal gap between two substrates so as to improve display image quality and display contrast. To accomplish this object, substrate gap adjusting region 33 or substrate gap adjusting layers 21, 22, 25, 27, 29, and 31 are formed so that the substrate gap in a region extending from a display region having pixel electrodes 7 to a driver circuit 11 is kept equal to the substrate gap in a region extending from the display region to a driver circuit 15. Thus, the gap between the two opposed substrates forming liquid crystal cells can be kept equal in any position.
Claims21
A liquid crystal display apparatus, comprising:
- a switching element array substrate having switching elements, scanning lines, signal lines, and pixel electrodes, said scanning lines and said signal lines being coupled to said switching elements, said pixel elements being coupled to said switching elements;
- a scanning line driver circuit coupled to said scanning lines;
- a signal line driver circuit coupled to said signal lines;
- an opposed substrate having a counter electrode being arranged opposite to said switching element array substrate with a gap in order to define a display region, said opposed substrate being bonded to said switching element array substrate with a sealing member formed in a sealing region around said display region;
- and
- an optical modulating layer formed at the gap between said switching element array substrate and said opposed substrate and sealed with said sealing member,
- wherein said switching element array substrate includes adjusting means for adjusting a first gap between a first region of said switching element array substrate and said opposed substrate to be equal to a second gap between a second region of said switching element array substrate and said opposed substrate, said first region of said switching element array substrate being located under the sealing member and between the display region and the scanning line driver circuit, said second region of said switching element array substrate being located under the sealing member and between the display region and the signal line driver circuit, and
- said adjusting means being arranged in at least one of said first and second regions.
5 more elements
A liquid crystal display apparatus, comprising:
- a switching element array substrate having switching elements, scanning lines, signal lines, storage capacitor lines and pixel electrodes, said scanning lines and said signal lines being coupled to said switching elements, said pixel elements being coupled to said switching elements, and said storage capacitor lines being arranged substantially parallel to the scanning lines and being overlapped with said pixel electrodes through an insulating layer so as to obtain storage capacitors;
- a scanning line driver circuit coupled to said scanning lines;
- a signal line driver circuit coupled to said signal lines;
- an opposed substrate having a counter electrode being arranged opposite to said switching element array substrate with a gap in order to define a display region, said opposed substrate being bonded to said switching element array substrate with a sealing member formed in a sealing region around said display region;
- and
- an optical modulating layer formed at the gap between said switching element array substrate and said opposed substrate and sealed with said sealing member,
- wherein said switching element array substrate includes adjusting means for adjusting a first gap between a first region of said switching element array substrate and said opposed substrate to be equal a second gap between a second region of said switching element array substrate and said opposed substrate, said first region of said switching element array substrate being located under the sealing member and between the display region and the scanning line driver circuit, said second region of said switching element array substrate being located under the sealing member and between the display region and the signal line driver circuit,
- said adjusting means being arranged at least one of said first and second regions, and
- said storage capacitor lines being extended outside the display region through the first region of the switching element array substrate.
6 more elements
Dependencies are inferred from the claim text.