Liquid crystal display panel and method of manufacturing the same
AssigneeFujitsu Display Technologies Corporation
InventorYasufumi Kanayama
Life of this patent
Estimating the term…
Abstract
Disclosed are a liquid crystal display panel having a testing terminal for prober check and a method of manufacturing the same. A black matrix is formed by laminating color filters of a plurality of colors one upon another in a non-display portion of a glass substrate. A mask is disposed in a region opposite to a testing terminal, and ITO is sputtered, thus forming a common electrode. Alternatively, an insulating resin film is formed on a part of the common electrode opposite to the testing terminal.
Claims12
A liquid crystal display panel comprising:
- a first substrate having a plurality of pixel electrodes, a plurality of gate bus lines, a plurality of data bus lines, a display portion in which thin film transistors connected to the pixel electrodes, the gate bus lines and the data bus lines are provided, testing terminals which are disposed in a non-display portion around said display portion and connected to said gate bus lines, and TAB terminals which are provided alone sides of said liquid display panel;
- a second substrate having a common electrode disposed so as to be opposite to said plurality of pixel electrodes;
- and
- liquid crystal sealed between said first and second substrates;
- wherein said common electrode is not formed in a region of said second substrate which is opposite to said testing terminals.
A liquid crystal display panel comprising:
- a first substrate having a plurality of pixel electrodes, a plurality of gate bus lines, a plurality of data bus lines, a display portion in which thin film transistors connected to the pixel electrodes, the gate bus lines and the data bus lines is provided, testing terminals which are disposed in a non-display portion around said display portion and connected to said gate bus lines, and TAB terminals which are provided along sides of said liquid display panel;
- a second substrate having a common electrode disposed so as to be opposite to said plurality of pixel electrodes and said testing terminals, and an insulating film formed in a region opposite to said testing terminals on said common electrode;
- and
- liquid crystal sealed between said first and second substrates.
A method of manufacturing a liquid crystal display panel comprising the steps of:
- forming gate bus lines in a display portion of a first substrate, forming testing terminals connected to said gate bus lines in a non-display portion and forming TAB terminals along sides of said liquid crystal display panel;
- forming data bus lines, pixel electrodes and thin film transistors connected to the data bus lines, the pixel electrodes and said gate bus lines on said first substrate;
- forming a common electrode in a region other than that opposite to said testing terminal on a second substrate;
- and
- sealing liquid crystal between said first and second substrates.
A method of manufacturing a liquid crystal display panel comprising the steps of:
- forming gate bus lines in a display portion of a first substrate, forming testing terminals connected to said gate bus lines in a non-display portion and forming TAB terminals along sides of said liquid crystal display panel;
- forming data bus lines, pixel electrodes and thin film transistors connected to the data bus lines, the pixel electrodes and said gate bus lines on said first substrate;
- forming a common electrode on a second substrate;
- forming an insulating film on said common electrode in a region opposite to said testing terminals;
- and
- sealing liquid crystal between said first and second substrates.
Dependencies are inferred from the claim text.