Abstract: The liquid crystal display device of this invention includes picture element regions each defined by a first electrode provided on a first substrate and a second electrode provided on a second substrate so as to oppose the first electrode via a liquid crystal layer sandwiched therebetween. In each of the picture element regions, the first electrode includes a solid portion and a nonsolid portion. The liquid crystal display device further includes a pair of polarizing plates disposed with polarization axes thereof crossing each other substantially perpendicularly. The polarization axis of one of the pair of polarizing plates is substantially parallel to a direction in which the solid portion extends. When a voltage is applied between the first electrode and the second electrode, in each of the picture element regions, liquid crystal molecules of the liquid crystal layer are in a radially-inclined orientation state.

Abstract: The present invention provides a liquid crystal display device capable of reducing a white tinge phenomenon in a vertical alignment mode having at least a pair of comb-shaped electrodes. The present invention provides a liquid crystal display device including a pair of substrates disposed opposite each other, and a liquid crystal layer sandwiched between the pair of substrates, wherein one of the pair of substrates includes a pair of comb-shaped electrodes, the pair of electrodes are disposed opposite each other planarly within a pixel, the liquid crystal layer contains p-type nematic liquid crystal and is driven by an electric field generated between the pair of electrodes, the p-type nematic liquid crystal is vertically aligned relative to surfaces of the pair of substrates when no voltage is applied, and two or more regions differing from each other in an interval between the pair of electrodes are formed within the pixel.

Abstract: The present invention provides a liquid crystal display device that allows suppressing loss of display quality caused by additional capacitance. The present invention provides a liquid crystal display device provided with a first substrate and a second substrate disposed opposing each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate, wherein the first substrate has a gate bus line, a source bus line, a pixel electrode to which an image signal is inputted, and a common electrode to which a common signal is inputted, the pixel electrode and the common electrode are comb-shaped within a pixel, an electric field parallel to the surface of the first substrate is generated between the pixel electrode and the common electrode within the pixel, and the common electrode is arranged, within a display area, at a layer that is different from a layer at which the gate bus line is formed and from a layer at which the source bus line is formed.

Abstract: Provided is a liquid crystal display device in which transmittance can be enhanced. The present invention provides a liquid crystal display device provided with a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates. One of the substrates has a comb-shaped first electrode and a comb-shaped second electrode. The first electrode includes a first trunk portion and a first branch portion obliquely connected to the first trunk portion. The second electrode includes a second trunk portion and a second branch portion obliquely connected to the second trunk portion. The liquid crystal layer includes a p-type nematic liquid crystal that is vertically aligned with respect to the surfaces of the substrates when no voltage is applied. Each pixel has a blank portion of the second electrode having an acute angle-shaped blank portion and an obtuse angle-shaped blank portion that are mutually adjacent.

Abstract: The present invention provides a liquid crystal display device which can suppress generation of a locally luminous part where a dark line disappears.

Abstract: There are provided a display that can block light so that a display on an image display device is invisible from a wide range of view angles in an oblique direction, and a view angle control element employed therein. In a narrow view angle state, a view angle control liquid crystal panel (2) prevents light in a predetermined wavelength region that has been incident at a polar angle of ?H or more from being transmitted through a polarizing plate (22) by using a phase difference imparted by a liquid crystal cell (21). In the narrow view angle state, a view angle control liquid crystal panel (3) prevents light that has been incident at a polar angle of ?L or more, among light that has been transmitted through the polarizing plate (22), from being transmitted through a polarizing plate (32) by using a phase difference imparted by a liquid crystal cell (31). Consequently, light forming a polar angle of ?L or more is blocked as a whole, which allows the narrow view angle state to cover a wide range.

Abstract: The present invention provides a liquid crystal display device which is capable of reducing occurrence of white-floating and/or color tone change. The present invention relates to a liquid crystal display device, comprising: a first substrate and a second substrate disposed opposite to each other; and a liquid crystal layer between the first substrate and the second substrate. The first substrate has a first comb-shaped electrode and a second comb-shaped electrode. The first electrode and the second electrode are planarly disposed opposite to each other in a pixel. The second substrate has a third electrode which is partially disposed in the pixel and is configured to be supplied with a predetermined electric potential. The liquid crystal layer includes a p-nematic liquid crystal which is configured to be aligned perpendicularly to substrate surfaces of the first substrate and the second substrate when no voltage is applied.

Abstract: There are provided a viewing angle control device that can provide a black display without coloring and achieve a significantly improved shielding ability during a narrow viewing angle state, and a display using the same. In order to adjust VT (voltage-transmittance) characteristics of a viewing angle control liquid crystal panel (2) that switches a viewing angle between a wide viewing angle state and a narrow viewing angle state by using birefringence of liquid crystal, the viewing angle control liquid crystal panel (2) includes a translucent dielectric film (206g, 206r) for adjusting the voltage-transmittance characteristics of the liquid crystal at a position corresponding to a picture element of at least one color in a display liquid crystal panel (1) on at least one of a pair of translucent substrates (201, 202) that sandwich the liquid crystal therebetween.

Abstract: The liquid crystal display device of this invention includes a plurality of picture element regions each defined by a first electrode provided on a face of a first substrate facing a liquid crystal layer and a second electrode provided on a second substrate so as to oppose the first electrode via the liquid crystal layer sandwiched therebetween. In each of the picture element regions, the first electrode has a plurality of openings and a solid portion, the liquid crystal layer is in a vertical orientation state when no voltage is applied between the first electrode and the second electrode, and when a voltage is applied between the first electrode and the second electrode, a plurality of liquid crystal domains each in a radially-inclined orientation state are respectively formed in the plurality of openings and the solid portion by inclined electrode fields generated at respective edge portions of the openings of the first electrode.

Abstract: In a liquid crystal display device including a display liquid crystal panel and a viewing-angle-control liquid crystal panel and capable of switching viewing angle characteristics, a half wavelength plate for setting a viewing restricted direction is provided between the display liquid crystal panel and the viewing-angle-control liquid crystal panel. This makes it possible to realize a liquid crystal display device that allows a viewing restricted direction to be set as appropriate.

Abstract: The present invention provides a liquid crystal display device which can suppress generation of an afterimage.

Abstract: The present invention provides a TBA-mode transflective liquid crystal display device in which components such as a multigap structure and a quarter-wave plate can be omitted.

Abstract: A display system includes a liquid crystal display (10) including a backlight (3), a liquid crystal display panel (1), and a viewing angle control panel (2) for controlling the viewing angle of the display panel (1), the display system causing the amount of external light reflected by the liquid crystal display (10) to be relatively larger than the amount of light leaked from the backlight (3) onto the liquid crystal display panel (1). This provides a display system having an enhanced blocking effect.

Abstract: The present invention provides a TBA-mode liquid crystal display device that is capable of reflective display and transmissive display without using a multigap structure. The liquid crystal display device of the present invention includes a first substrate and a second substrate disposed opposite each other and a liquid crystal layer interposed between the first substrate and the second substrate, and has, in a pixel area, a reflective area where reflective display is performed and a transmissive area where transmissive display is performed.

Abstract: A liquid crystal display includes a backlight (3), a liquid crystal display panel (1), and a viewing angle control panel (2) for controlling the viewing angle of the display panel (1), the liquid crystal display further including a lens sheet (41) provided between the backlight (3) and the liquid crystal display panel (1). This provides a display device system which is capable of providing better blocking.

Abstract: A liquid crystal display device includes a reflective liquid crystal panel (20) having a liquid crystal panel polarization plate (22), a polarization plate (32) provided on a front surface side of the polarization plate (22) with its absorption axis in parallel with an absorption axis of the polarization plate (22), and a negative C plate (31) provided between the liquid crystal panel polarization plate (22) and the polarization plate (32). The negative C plate (31) sets a direction in which viewing limitation is carried out. Thus, it is possible to provide the liquid crystal display device in which a viewing angle can be narrowed by freely setting, in the reflective liquid crystal panel, the direction in which the viewing limitation should be carried out.

Abstract: A negative C plate (31) is arranged to be between a polarizing plate (32) and a reflective liquid crystal panel (20). A retardation of the negative C plate (31) is set so that a combination of the negative C plate (31) and the liquid crystal panel (20) generates a phase difference of “n?/4+?/8 (n is 0, or a positive or negative integer)” for a one-way light path with respect to linearly-polarized light entering into the liquid crystal display device. This makes it possible to provide, at low cost, a liquid crystal display device whose viewing angle can be narrowed by arbitrarily setting a direction in which visibility is limited.

Abstract: A liquid crystal display device (10) of the present invention includes a backlight (3), a display liquid crystal panel (1) and a viewing angle control panel (2) for switching a viewing angle of the display liquid crystal panel (1) between a wide viewing angle mode and a narrow viewing angle mode. The viewing angle control panel (2) includes a control panel upper polarizing plate (22), a liquid crystal cell (21) and a control panel lower polarizing plate (23) stacked in this order, and phase difference plates (24, 25) are provided between the polarizing plates (22, 23) and the liquid crystal cell (21), respectively. The viewing angle control panel (2) is arranged such that Re1 in a white display portion in the wide viewing angle mode is n?/2 (n is an integer of 1 or more), Re2 in a white display portion in the narrow viewing angle mode is n?/2 (n is an integer of 1 or more), and Re3 in a black display portion in the narrow viewing angle mode is n? (n is an integer of 1 or more).

Abstract: It is an object to provide a display that can reliably shield visible light in the entire wavelength regions when viewed from an oblique direction and a viewing angle control element used for the display. A viewing angle control liquid crystal panel (2) is comprised of a liquid crystal cell (21) and an emission-side polarizing plate (22). When light having a part of wavelength components (R,G) in the visible wavelength regions enters at least at a predetermined angle, the liquid crystal cell (21) provides the incident light with a phase difference so as to function as a first light-shielding layer that shields the light of the R and G components not to pass through the emission-side polarizing plate (22).

Abstract: There are provided a display that can block light so that a display on an image display device is invisible from a wide range of view angles in an oblique direction, and a view angle control element employed therein. In a narrow view angle state, a view angle control liquid crystal panel (2) prevents light in a predetermined wavelength region that has been incident at a polar angle of ?H or more from being transmitted through a polarizing plate (22) by using a phase difference imparted by a liquid crystal cell (21). In the narrow view angle state, a view angle control liquid crystal panel (3) prevents light that has been incident at a polar angle of ?L or more, among light that has been transmitted through the polarizing plate (22), from being transmitted through a polarizing plate (32) by using a phase difference imparted by a liquid crystal cell (31). Consequently, light forming a polar angle of ?L or more is blocked as a whole, which allows the narrow view angle state to cover a wide range.