Method of manufacturing liquid crystal display and liquid crystal display manufactured by the method
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsKenichi Minowa, Takeshi Ohashi
Life of this patent
Estimating the term…
Abstract
In a neighborhood of a display area in a liquid crystal display formed is a barrier for acquiring foreign matters. A method of manufacturing the barrier has a step of forming a TFT and forming the barrier of the same materials as a plurality of materials constituting the TFT at the same time. Thus provided is a manufacturing method which allows the foreign matters caused by a brush cleaning to be held back and acquired outside the display area and avoids a defect due to a short circuit made by the foreign matters between adjacent pixels or with a counter electrode substrate.
Claims16
A method of manufacturing a liquid crystal display in which a first substrate having a TFT array and a conductive film forming a pixel portion driven by said TFT array in a display area, and a second substrate are bonded with a gap interposed therebetween and a liquid crystal is held in said gap, comprising:
- a TFT array forming step of forming said TFT array on said first substrate and forming a barrier of the same materials as a plurality of materials constituting said TFT array in at least part of neighborhood of said display area at the same time.
A method of manufacturing a liquid crystal display in which a first substrate having a TFT array and a conductive film forming a pixel portion driven by said TFT array in a display area, and a second substrate are bonded with a gap interposed therebetween and a liquid crystal is held in said gap, wherein
- said TFT array is formed on said first substrate and a barrier is formed of the same materials as a plurality of materials constituting said TFT array, to be positioned between said display area and a terminal region for connecting a liquid crystal driving circuit provided outside said display area, in at least one of a gap between adjacent gate driving lines and a gap between adjacent source driving lines in said TFT array at the same time.
A method of manufacturing a liquid crystal display in which a first substrate having a TFT array and a conductive film forming a pixel portion driven by said TFT array in a display area, and a second substrate are bonded with a gap interposed therebetween and a liquid crystal is held in said gap, comprising:
- a TFT array forming step of forming said TFT array on said first substrate and forming a barrier of the same materials as a plurality of materials constituting said TFT array in at least part of neighborhood of said display area at the same time;
- and
- a contact hole forming step of forming a contact hole for connecting a source terminal or a drain terminal in said TFT to said conductive film and etching a contour of said barrier at the same time.
Dependencies are inferred from the claim text.