Patent Number: 7,826,014

Title: Semi-transparent TFT array substrate, and semi-transparent liquid crystal display with transparent pixel electrode and contrast reduction preventive electrode connected in the same layer

Abstract: A semi-transparent TFT array substrate has a TFT including a source electrode, a gate electrode, and a drain electrode. The substrate also has an auxiliary capacitive wiring and a reflective pixel electrode. Further, the substrate has a transparent pixel electrode including an electrode extending from a corner of the rest of the transparent pixel electrode to an edge of the auxiliary capacitive wiring closest to a gate wiring connected to the gate electrode. In addition, the substrate has a source wiring connected to the source electrode. The auxiliary capacitive wiring overlaps a space existing between the reflective pixel electrode and the source wiring. The electrode is disposed between the reflective pixel electrode and the source wiring. A connection which connects the electrode and the rest of the transparent pixel electrode does not overlap the auxiliary capacitive wiring in a plan view. The connection does not overlap the gate wiring.

Inventors: Yamashita; Shinji (Kumamoto, JP), Masutani; Yuichi (Tokyo, JP), Nagano; Shingo (Tokyo, JP)

Assignee: Mitsubishi Denki Kabushiki Kaisha

International Classification: G02F 1/1343 (20060101)

Expiration Date: 2019-11-02 0:00:00