Sharp Kabushiki Kaisha Corporation

Takehisa Yoshida

Fumikazu Shimoshikiryoh

Shigeyuki Yamada

Toshinori Sugihara

Atsushi Ban

Tomohiro Kosaka

Tomofumi Osaki

Masayuki Katagami

The present invention provides a dimming panel sequentially including: a first substrate; a liquid crystal layer; and a second substrate, the first substrate sequentially including an insulating substrate, a first electrode, a first insulator layer, and a second electrode, the second electrode including, in a plan view, linear electrodes parallel to each other with slit regions in between, and bridge electrodes each of which is disposed in one of the slit regions and is connecting two adjacent linear electrodes, the bridge electrodes including a first bridge electrode in a first slit region, a second bridge electrode in a second slit region adjacent to the first slit region, and a third bridge electrode in a third slit region adjacent to the second slit region, the first bridge electrode, the second bridge electrode, and the third bridge electrode being discrete from one another.

Dimming panel, production method for dimming panel and liquid crystal display device

The present invention relates to a dimming unit including: a dimming panel; and drive circuitry, the dimming panel sequentially including a first substrate, a liquid crystal layer, and a second substrate, the first substrate sequentially including an insulating substrate, a lower-layer electrode, a first insulating layer, multiple first electrodes, a second insulating layer, and a second electrode which is provided with multiple parallel linear electrodes and to which a constant voltage is applied, the first electrodes including multiple island electrodes which are spaced from each other in a plan view and are electrically connected to each other, at least one of the island electrodes being electrically connected to the lower-layer electrode through a contact hole, the drive circuitry controlling voltages applied to the respective first electrodes.

Dimming unit, and liquid crystal display device

The present invention provides a dimming panel including: a drive circuit; and dimming units arranged in one direction from a drive circuit, the dimming panel sequentially including a first substrate, a liquid crystal layer, and a second substrate, the first substrate sequentially including an insulating substrate, connection lines formed from a transparent conductive material and connected to the drive circuit, a first insulating layer, a first electrode, a second insulating layer, and a second electrode, the first electrode or the second electrode including dimming electrodes disposed for the respective dimming units, each of the dimming electrodes being electrically connected to one of the connection lines, an electrode width of at least one of the connection lines increasing in response to a distance from the drive circuit.

Dimming panel and liquid crystal display device

A display apparatus () having a displaying region (RD) of a non-rectangular shape includes: a plurality of gate lines () being disposed in the displaying region (RD) and extending along a first direction; a plurality of source lines () extending along a second direction; a plurality of gate drivers (G) and a plurality of source drivers (S) disposed in the frame region (RF); and a gate connection line () being provided in the displaying region (RD) so as to extend along a direction which intersects the first direction and connected to one of the gate drivers (G) and one of the plurality of gate lines (). A region in which the plurality of gate drivers (G) are provided and a region in which the plurality of source drivers (S) are provided are opposite from each other, with the displaying region (RD) being interposed therebetween.

Display device

The present invention relates to a dimming panel sequentially including a first substrate, a liquid crystal layer, and a second substrate, the first substrate sequentially including an insulating substrate, multiple first electrodes, a first insulating layer, and a second electrode including parallel linear electrodes, each of the first electrodes including a base electrode and multiple island electrodes, the base electrode being provided with multiple apertures, the island electrodes being electrically connected to the base electrode, surrounding the base electrode in a plan view, and being arranged with intervals, at least one of the island electrodes of a selected electrode of the first electrodes being disposed in at least one position selected from the group consisting of a position inside at least one of the apertures of a next electrode and a position between adjacent two of the island electrodes of the next electrode.

Dimming panel, dimming unit, and liquid crystal display device

A liquid crystal display panel includes in the following order: a first substrate including pixel electrodes; a liquid crystal layer containing liquid crystal molecules; and a second substrate including a counter electrode, the liquid crystal display panel including pixels each including at least four alignment regions of a first alignment region, a second alignment region, a third alignment region, and a fourth alignment region, the four alignment regions providing different tilt azimuths to the liquid crystal molecules, the first alignment region, the second alignment region, the third alignment region, and the fourth alignment region being arranged in the given order in a longitudinal direction of each pixel, the first alignment region and the second alignment region providing tilt azimuths approximately 180&#xb0; different from each other to the liquid crystal molecules or the third alignment region and the fourth alignment region providing tilt azimuths approximately 180&#xb0; different from each other to the liquid crystal molecules.

Liquid crystal display panel

A liquid crystal display panel includes in the following order: a first substrate including pixel electrodes; a first vertical alignment film; a liquid crystal layer containing liquid crystal molecules; a second vertical alignment film; and a second substrate including a counter electrode. The liquid crystal display panel includes pixels each including four alignment regions which provide different tilt azimuths to the liquid crystal molecules and are arranged in a longitudinal direction of each pixel. The liquid crystal display panel includes first, second, third, and fourth alignment regions providing the respective specific alignment azimuths. The liquid crystal molecules are aligned in a direction substantially perpendicular to the first and second vertical alignment films and at a tilt in the respective tilt azimuth directions with no voltage applied to the liquid crystal layer and are to be more tilted in the respective tilt azimuth directions upon application of voltage to the liquid crystal layer. The liquid crystal molecules are at a twist angle of substantially 0&#xb0; in each of the four alignment regions.

Liquid crystal display panel, liquid crystal display panel manufacturing method, and liquid crystal display panel manufacturing device

A liquid crystal display panel includes: a plurality of first source drivers () provided in a first frame region (), each first source driver supplying a first display signal voltage to source bus lines, from among a plurality of source bus lines (), that are associated with the first source driver; and a plurality of second source drivers () provided in a second frame region (), each second source driver supplying a second display signal voltage to source bus lines, from among the plurality of source bus lines, that are associated with the second source driver. In each vertical scanning period, the first display signal voltage and the second display signal voltage are supplied to each of the plurality of source bus lines while being superposed on each other, and polarities of the first display signal voltage and the second display signal voltage do not change within each vertical scanning period.

Liquid crystal display panel and correction method therefor

A liquid crystal display panel includes in the following order: a first substrate including pixel electrodes; a liquid crystal layer; and a second substrate including a counter electrode. The liquid crystal display panel includes pixels each including at least four alignment regions that provide different tilt azimuths to the liquid crystal molecules. The four alignment regions are arranged in a longitudinal direction of the pixels. The pixel electrodes are each provided with linear slits. The slits are formed in a region between one pixel edge of each pixel in the longitudinal direction and a center line of the pixel in the transverse direction in each alignment region. The liquid crystal molecules are aligned in a direction substantially perpendicular to the first substrate and the second substrate and at a tilt in the respective tilt azimuth directions with no voltage applied to the liquid crystal layer. The liquid crystal molecules are at a twist angle of substantially 45&#xb0; or smaller. Upon application of voltage to the liquid crystal layer, the liquid crystal molecules are to be more tilted in the respective tilt azimuth directions and the tilt azimuth of each liquid crystal molecule is a given azimuth in each region in which the slits are formed.

A liquid crystal display panel, a pixel electrode in each of the pixels includes a first linear electrode group extending parallel to an azimuth of approximately 45&#xb0;, a second linear electrode group extending parallel to an azimuth of approximately 135&#xb0;, a third linear electrode group extending parallel to an azimuth of approximately 225&#xb0;, and a fourth linear electrode group extending parallel to an azimuth of approximately 315&#xb0;. One of the first alignment film and the second alignment film includes a first alignment region provided with a pre-tilt angle at an azimuth of approximately 225&#xb0;, a third alignment region provided with a pre-tilt angle at an azimuth of approximately 45&#xb0;, and a region provided with substantially no pre-tilt angle or a pre-tilt angle at an azimuth approximately perpendicular to the linear electrode group on which the region is superimposed. The other of the first alignment film and the second alignment film includes a second alignment region provided with a pre-tilt angle at an azimuth of approximately 135&#xb0;, a fourth alignment region provided with a pre-tilt angle at an azimuth of approximately 315&#xb0;, and a region provided with substantially no pre-tilt angle or a pre-tilt angle at an azimuth approximately perpendicular to the linear electrode group on which the region is superimposed.

Liquid crystal display panel and manufacturing method thereof

When a first source bus line (SA) or a second source bus line (SB) which is associated with a pixel of one column is electrically connected with a spare wire (AL), a control circuit (B) of a liquid crystal display device (B) according to an embodiment of the present invention is capable of controlling the amplitudes of the oscillation of a first display signal voltage and a second display signal voltage output to the first source bus line (SA) and the second source bus line (SB) so as to be smaller than that achieved when the first source bus line (SA) or the second source bus line (SB) is not electrically connected with the spare wire (AL).

Growing community of inventors

Sakai, Japan

Takehisa Yoshida