Sharp Kabushiki Kaisha Corporation

Hidehiko Yamaguchi

Toshihide Tsubata

Naoshi Yamada

Yuichi Inoue

Masayuki Tsuji

Yukio Kurozumi

Tetsuya Kobayashi

Yoshinori Shimada

Katsutoshi Kobayashi

Hidetomo Miyake

Seiji Sutoh

Ichiroh Nakamura

A liquid crystal display device in which alignment control in a vertical-alignment-type liquid crystal layer is excellent at a side portion or a corner portion of a pixel electrode. The liquid crystal display device includes a pixel electrode including openings of slits as an alignment control mechanism, a common electrode including linear protrusions as an alignment control mechanism, the electrodes opposed to each other, and a vertical-alignment-type liquid crystal layer sandwiched between the electrodes, wherein the linear protrusion is placed at a position where the linear protrusion controls alignment in the liquid crystal layer inside a position where an oblique electric field generated at the edge of an corner portion of the pixel electrode at the time when a voltage is applied between the electrodes controls the alignment in the liquid crystal layer.

Liquid crystal display device

A voltage having the positive polarity and a voltage having the negative polarity are alternately applied to a pixel between a counter electrode and a pixel electrode. A counter electrode voltage (Vcom) generating circuit or a source signal generating section is provided each of which controls effective voltages to be applied to the pixel for an identical tone so that an effective voltage having the positive polarity and an effective voltage having the negative polarity are asymmetrically applied to the pixel for all of the tones which can be displayed. The counter electrode voltage (Vcom) generating circuit or the source signal generating section shifts a counter electrode voltage Vcom-A or a source voltage by 0.3 V or more from a voltage causing the effective voltages to be symmetrically applied to the pixel.

Liquid crystal display apparatus and method for driving the same

A liquid crystal display device in which alignment control in a vertical-alignment-type liquid crystal layer is excellent at a side portion or a corner portion of a pixel electrode. The liquid crystal display device includes a pixel electrodeincluding openingsof slits as an alignment control mechanism, a common electrodeincluding linear protrusionstoas an alignment control mechanism, the electrodes being opposed to each other, and a vertical-alignment-type liquid crystal layerwhich is sandwiched between the electrodes, wherein the linear protrusionis placed at a position where the linear protrusioncontrols alignment in the liquid crystal layer inside a position where an oblique electric fieldwhich is generated at the edge of an corner portionof the pixel electrodeat the time when a voltage is applied between the electrodes controls the alignment in the liquid crystal layer.

In a liquid crystal display device, an array substrate and a CF substrate are arranged face to face with each other. A liquid crystal layer is provided between the array substrate and the CF substrate. The array substrate and the CF substrate are bonded together by a sealing member containing a photo curing material. The array substrate has a surface opposed to the CF substrate. Metal wires are provided in the circumferential portion of the opposed surface. A transparent film is disposed between the metal wires and the sealing member.

Liquid crystal display device and manufacturing method thereof

The method of the present invention includes the steps of: (A) providing a first substrate, and a second substrate, wherein the first substrate includes a first light shielding layer provided within a non-display region, the first light shielding layer including a light-transmitting portion provided near an outer boundary of the first light shielding layer, the light-transmitting portion comprising a recess or an opening; (B) drawing a seal pattern with a sealant, the seal pattern being drawn outside the first light shielding layer so as to surround the display region, comprising the substeps of: (B1) beginning application of the sealant near the light-transmitting portion, (B2) applying the sealant along an outer periphery of the first light shielding layer, and (B3) forming a junction with the sealant having been applied near the light-transmitting portion; (C) applying a liquid crystal material within the display region surrounded by the sealant; (D) attaching the first substrate and the second substrate; and (E) performing light irradiation from the first substrate side to cure the sealant.

LCD panel having a broad-gap region including a dent within sealed substrates at the non-diplay region in which an electrical transfer section for the susbstrates is located at a wider line-width area of the sealing portion along longer sides of the panel

LCD panel having a broad-gap region including a dent within sealed substrates at a non-display region which includes an electrical transfer section and light transmitting portion spaced from a corner of the two substrates within the dent

LCD panel having a broad-gap region having a dent within a non-display region of the panel and an electrical transfer section and a sealing portion both at least partially within the dent for first and second substrates forming the panel

A liquid crystal display device is one in which unevenness of display, spots, etc. caused by lowering of voltage retention by impurity ions are sufficiently eliminated and reliability of long time/long term use is improved. A liquid crystal display device is formed with a liquid crystal layer between a first substrate and a second substrate configured via a seal, wherein the liquid crystal display device includes electrodes on the liquid crystal layer side of a non-display region of the first substrate and/or the second substrate, and the potentials of the electrodes are substantially the same.

In order to provide a liquid crystal display causing no unevenness of the cell gap and preventing the occurrence of non-uniformity of a display in spite of a conductive material, for electrically connecting two substrates, provided in an area inside a sealant, the liquid crystal display has a configuration that a liquid crystal panel has a liquid crystal layer between two transparent substrates which are adhered to each other by a sealing adhesive and a conductive material is formed in a spot form along the liquid crystal layer side of the sealing adhesive so as to electrically connect opposing electrode connecting terminals to opposing common electrodes formed on the transparent substrates.

Growing community of inventors

Tsu, Japan

Hidehiko Yamaguchi