Sharp Kabushiki Kaisha Corporation

Yoshimizu Moriya

Yasuyoshi Kaise

Yasutoshi Tasaka

Mutsumi Nakajima

Yuki Kawashima

Hiroshi Yoshida

Keiichi Ina

Makoto Kita

Noboru Nakanishi

Hiroshi Matsukizono

Noboru Matsuda

Yoshiyuki Itoh

Kaori Saitoh

A liquid crystal display element () of the present invention includes a transparent common electrode () which is provided in a layer between (i) a scan line () and a signal line () and (ii) a pixel electrode () so that the transparent common electrode () covers a location which faces at least one of (i) at least part of the scan line () and (ii) at least part of the signal line (), the transparent common electrode () having an opening part () at a location which faces the pixel electrode ().

Liquid crystal display element and liquid crystal display device

Each of the pixel electrodes that are disposed in a liquid crystal display panel of one embodiment of the present invention is constituted of minutely patterned electrode regions (a first minutely patterned electrode region and a second minutely patterned electrode region), and one solid electrode region, and the length Lpix of each of the pixel electrodes in a direction along a data line, and the total length LB of the minutely patterned electrode regions satisfies the relationship of LB/Lpix=0.3 to 0.6.

Liquid crystal display panel comprising a pixel electrode that includes one uniformly planar electrode region and one or more finely patterned electrode regions

An active matrix substrate (A) includes a thin film transistor (), a scanning line () substantially parallel to a first direction, a signal line () substantially parallel to a second direction which is orthogonal to the first direction, a first interlayer insulating layer () covering the thin film transistor, a lower layer electrode () provided on the first interlayer insulating layer, a dielectric layer () provided on the lower layer electrode, and an upper layer electrode () overlapping at least a portion of the lower layer electrode via the dielectric layer. A first contact hole () for allowing the upper layer electrode to be electrically connected to a drain electrode () of the thin film transistor includes a first aperture () formed in the first interlayer insulating layer and a second aperture () formed in the dielectric layer. A width of the first aperture along one of the first direction and the second direction is smaller than a width of the second aperture along the one direction. When viewed from the normal direction of the substrate, a portion of the contour of the second aperture is located inside the contour of the first aperture.

Active matrix substrate, liquid crystal display device and method for manufacturing active matrix substrate

The present invention provides a liquid crystal display panel that has an enhanced liquid crystal alignment controlling force irrespective of the external conditions or environments. The enhanced liquid crystal alignment controlling force sufficiently prevents surface roughness or color unevenness that can occur depending on the viewing angle, so that favorable display qualities and excellent transmittance can be achieved. The liquid crystal display panel includes a pair of substrates comprising a pixel electrode and a counter electrode; and a liquid crystal layer disposed between the substrates, the liquid crystal display panel comprising spacers at at least four corners of a pixel defined by the pixel electrode.

Liquid crystal display panel and liquid crystal display device

The active-matrix substrate () of the present invention satisfies d&#x3e;dand d+A/2&#x3e;d+L/2, where dis the length of the shortest line segment that connects together a channel region () and a gettering region () as measured by projecting the line segment onto a line that connects together the channel region () of a TFT () and a source contact portion, dis the distance from the channel region () to the source contact portion (), dis the distance from the channel region () to a first end portion (), Lis the length of the first end portion (), and Ais the length of the source contact portion ().

Active matrix substrate

A liquid crystal display device () includes a plurality of source bus lines (), a plurality of gate bus lines () that cross the plurality of source bus lines (), and a plurality of auxiliary capacitance lines () that extend in parallel with the gate bus lines (). The liquid crystal display device () also includes a plurality of pixels () to () that respectively include TFTs (), pixel electrodes (), a common electrode (), and a liquid crystal layer () and that are arranged in a matrix so as to correspond to the respective intersections of the gate bus lines () and the source bus lines (). A pixel electrode () for the pixel () is disposed in the pixel () that is adjacent to the pixel (), and in a plan view, the gate bus line () disposed in the pixel () and the pixel electrode () for the pixel () are arranged apart from each other so as not to overlap.

Liquid crystal display device

A liquid crystal display device of the present invention includes: an active matrix substrate; a counter substrate; and a liquid crystal layer () including light-diffusing liquid crystal that has (i) when no voltage is being applied thereto, a first display state in which the liquid crystal molecules are aligned irregularly, and (ii) when a voltage is being applied, a second display state in which the liquid crystal molecules are aligned regularly, the active matrix substrate having a first surface which is below a surface on which pixel electrodes () are provided, the first surface having a first region on which a gap between adjacent pixel electrodes () is projected, the first region having partial regions which orthogonally cross gate bus lines GL (), source bus lines SL () being each provided in a second region at a location shifted from a corresponding one of the partial regions so that the source bus line SL () is covered by the adjacent pixel electrodes ().

Liquid crystal display device, active matrix substrate, and electronic device

In an active-matrix substrate () according to the present invention, a semiconductor layer () has a first gettering region () adjacent to the source region () of a first thin-film transistor (), a second gettering region () adjacent to the drain region () of a second thin-film transistor (), and a third gettering region () adjacent to any of the source and drain regions located between the respective channel regions (and) of the first and second thin-film transistors (and) among the source and drain regions of the thin-film transistors included in the thin-film transistor element ().

An active matrix liquid crystal display device is provided in which decrease in the aperture ratio is prevented, and deterioration in display quality is reduced by preventing liquid crystal molecules in a region of a pixel electrode which region faces a bus line from aligning in two or more directions. A liquid crystal panel in the active matrix liquid crystal display device includes a plurality of pixel electrodes () in array; and bus lines () arranged in a grid so as to surround each of the pixel electrodes (), the pixel electrodes () each including a prominence () overlapping an adjacent one of the bus lines () in a top view, wherein the respective prominences () of each adjacent two of the pixel electrodes () facing each other across an adjacent one of the bus lines () overlap the bus line () at positions different from each other with respect to a direction in which the bus line () extends.

Growing community of inventors

Osaka, Japan

Yoshimizu Moriya