Sharp Kabushiki Kaisha Corporation

Takashi Fujikawa

Yoshiharu Kataoka

Mikio Katayama

Masaya Okamoto

Akihiro Yamamoto

Hirohiko Nishiki

Yoshinori Shimada

Yuzuru Kanemori

Takehiko Sakai

Katsumi Irie

Yoshikazu Sakuhana

Hitoshi Matsumoto

Masafumi Kokura

Kazuhiro Ishizuka

A method for manufacturing a liquid crystal display which employs an active matrix substrate including a plurality of pixels arranged in matrix on a substrate and reflecting electrodes formed in the pixels, respectively. The method comprises (a) a laminated conductive film formation step of sequentially forming a conductive metal film and an amorphous transparent conductive film on a substrate to form a laminated conductive film and (b) a reflecting electrode formation step of patterning the laminated conductive film into a reflecting electrode, wherein the step (b) includes a first etching step of etching the conductive metal film and the amorphous transparent conductive film simultaneously and a second etching step of etching the amorphous transparent conductive film only.

Method for manufacturing conductive element substrate, conductive element substrate, method for manufacturing liquid crystal display, liquid crystal display and electronic information equipment

Method for manufacturing a display device, and display device substrate

A method for producing an electrode substrate, having an organic insulating region formed of an organic insulating material and an inorganic insulating region formed of an inorganic insulating material on an identical side thereof, includes the steps of performing a plasma treatment of the organic insulating region; forming a first transparent conductive layer in contact with the organic insulating region and a second transparent conductive layer in contact with the inorganic insulating region; and etching the first transparent conductive layer and the second transparent conductive layer in the same step.

Electrode substrate, method for producing the same, and display device including the same

An active-matrix substrate includes: two kinds of lines arranged in a matrix on an insulating plate; switching elements each provided in the vicinity of an intersection of the two kinds of lines; an insulating film for flattening, covering an entire surface of the insulating plate so as to flatten the uneven surface of the insulating plate due to the presence of the lines and the switching elements; and pixel electrodes provided in a matrix on the insulating film for flattening. A concave portion for preventing a short-circuit from occurring between the pixel electrodes during a production process is formed in a region of the insulating film for flattening which corresponds to a gap between pixel electrodes which are adjacent to each other. Also, a method for fabricating the active-matrix substrate includes the step of forming a concave portion for preventing a short-circuit from occurring between the pixel electrodes in an exposed portion of the insulating film for flattening at a gap between the pixel electrodes adjacent to each other, forming the concave portion by an ashing treatment after forming the pixel electrodes in a matrix.

Active matrix substrate with concave portion in region at edge of pixel

The active matrix liquid crystal panel of this invention includes: a plurality of scanning lines and a plurality of signal lines arranged to cross each other; a plurality of pixel electrodes arranged in respective regions defined by the plurality of scanning lines and the plurality of signal lines; and a plurality of switching elements for driving the plurality of pixel electrodes, wherein each of the plurality of pixel electrodes overlaps at least one of the adjacent scanning lines and signal lines among the plurality of scanning lines and signal lines via an insulating film, and at least one of the plurality of pixel electrodes is electrically connected with the overlapped line.

Active matrix liquid crystal panel and method for repairing defect

An active matrix substrate includes an insulative plate; a plurality of switching elements arranged in a matrix on the insulative plate; a plurality of gate signal lines for controlling the switching elements; a plurality of source signal lines for providing data signals to the switching elements, the source signal lines being perpendicular to the gate signal lines; and a plurality of pixel electrodes respectively provided above and in electric connection with drain electrodes of the switching elements. At least one of the source signal lines and the drain electrodes include at least a transparent conductive layer, a first metal layer and a second metal layer.

Active matrix substrate with multi-layer signal lines and/or electrodes

A liquid crystal display device comprises a gate signal wiring formed on a substrate, a data signal wiring insulated from the gate signal wiring and formed to perpendicularly cross the gate signal wiring, a switching element provided near the perpendicularly crossing portion of the gate signal wiring and the date signal wiring and having a gate electrode and source/drain electrodes, an interlayer insulating film, and a pixel electrode disposed in the region surrounded by the gate signal wiring and the data signal wiring and on the interlayer insulating film, wherein the gate signal wiring is connected with the gate electrode, the data signal wiring is connected with one of the source/drain electrodes, the pixel electrode is connected with the other of the source/drain electrodes through a contact hole penetrating through an interlayer insulating film and via a connecting electrode, and, the width of the contact hole at the aperture surface of the contact hole is reduced by setting the height from the surface of the substrate to the bottom of the contact hole to be larger than the height of the contact hole.

Growing community of inventors

Tenri, Japan

Takashi Fujikawa