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Reflective liquid crystal display
| Details |
Inventors: Iwasa, Takayuki;
Assignee: Victor Company of Japan, Limited (Kanagawa-ken, JP)
Primary Examiner: Nguyen; Dung T.
Assistant Examiner:
Attorney, Agent or Firm: Nath & Associates, Nath; Gary M., Kang; Gregory B.
A reflective LCD has a plurality of pixels formed in rows and columns in a matrix. Among the pixels, pixels A and B are arranged adjacent to each other in the same column. A connection line is arranged over the two pixels A and B arranged adjacent to each other in the same column. A first end of the connection line is connected to a capacitor electrode contact of a storage capacitor formed in the pixel A and to a reflective pixel electrode formed in the pixel A. A second end of the connection line is extended over a gate line for the pixel A with an insulating film among functional films being between the connection line and the gate line and is connected to a source electrode (or drain electrode) of a switching element formed in the pixel B. |
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DETAILED DESCRIPTION There is a requirement for a reflective LCD configured to change a gate-line scanning direction according to the usage (for example, overhead usage or desktop usage) of the reflective LCD, capable of minimizing the influence of feed-through of a pixel A caused by different gate-line scanning directions U and D when the pixel A is arranged adjacent to a pixel B in the same column.
In order to accomplish the object, an aspect of the present invention provides a reflective LCD having a semiconductor substrate, a plurality of switching elements, a plurality of storage capacitors provided for the switching elements, respectively, the switching elements with the storage capacitors being electrically isolated from one another, a plurality of functional films laid one upon another over the switching elements and storage capacitors, a plurality of reflective pixel electrodes formed from a metal film that is a top one of the functional films, the reflective pixel electrodes being electrically isolated from one another, each of the switching elements, one of the storage capacitors connected to the switching element, and one of the reflective pixel electrodes connected to the switching element forming a pixel, the pixels being arranged in rows and columns in a matrix on the semiconductor substrate, a transparent counter electrode formed on a reverse of a transparent substrate, to face the reflective pixel electrodes, and liquid crystals sealed between the reflective pixel electrodes and the counter electrode.
The reflective LCD has gate lines arranged for the rows of the pixels, respectively, and configured to be scanned in a scanning direction that is dependent on the usage of the reflective LCD.
Each of the gate lines is connected to gate electrodes of the switching elements that are in a corresponding one of the rows of the pixels so that the gate lines may sequentially supply gate pulses to the rows of the pixels in the scanning direction.
The reflective LCD also has signal lines that are made from a metal film and are arranged for the columns of the pixels, respectively
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LCD 
