Back to results
US 2003/0193638 A1Published application
Liquid crystal display device and manufacturing method thereof
AssigneeAdvanced Display Inc.
InventorsYuichi Masutani, Shingo Nagano
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAdvanced Display Inc.
InventorsYuichi Masutani, Shingo Nagano
Estimating the term…
The present invention relates to a liquid crystal display device of In-Plane Switching mode. The liquid crystal display device includes a common electrode having an overlap portion in which the common electrode is overlapped with a source line. The common electrode has separating areas for line disconnection recovery outside of the overlap portion. The separating areas disconnect the overlap portion from other portion of the common electrode at least between which and a pixel electrode is generated an electric field.
A liquid crystal display device having a common electrode, the common electrode comprising:
A manufacturing method of a liquid crystal display device including a common electrode having an overlap portion in which the common electrode is overlapped with a source line, and separating areas for line disconnection recovery outside of the overlap portion and disconnecting the overlap portion from other portion of the common electrode at least between which and a pixel electrode is generated an electric field, comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
Optical devices or arrangements for the control of light by modification of
Term end not estimated
1. Field of the Invention
The present invention relates to a liquid crystal display device in which line disconnection is easily recovered, and a manufacturing method thereof.
2. Related Background Art
FIG. 1 is a view to show a pixel area of a liquid crystal display device according to the present invention.
FIG. 2 is a sectional view of a pixel area of a liquid crystal display device according to the present invention.
FIG. 3 is a view to show a pixel area of a liquid crystal display device according to the present invention.
First Embodiment
The liquid crystal display device according to the present invention has a configuration shown in FIGS. 7A and 7B. More specifically, a color filter (CF) substrate and a thin film transistor (TFT) substrate are placed oppositely at a certain distance away from each other. A liquid crystal layer is placed between those substrates. A gate line and a source line crossing each other are formed on one of the substrates. There is also formed a switching element such as a thin film transistor connected to the gate line and the source line. Formed in the switching element are a V-shaped comb-type pixel electrode consisting of a plurality of electrodes provided parallel to the source line, and a V-shaped comb-type common electrode consisting of a plurality of electrodes arranged parallel to and alternating with the plurality of electrodes of the pixel electrode. Application of a voltage across the pixel electrode and the common electrode results in application of an electric field substantially parallel to the substrates to the liquid crystal layer.
FIG. 1 is an enlarged view of a plurality of pixel areas of the liquid crystal display device according to the present invention. In FIG. 1, the same elements as those in FIGS. 6 and 7 are denoted by the same reference numerals and redundant description will be omitted.