摘要:
A composite retardation plate for use in a Twisted Nematic liquid crystal display device, at least includes: a first retardation film; and a second retardation film stacked on the first retardation film, the first retardation film being such that the first retardation film has a refractive index anisotropy which varies in thickness of the first retardation film so as to compensate for sequential variations in refractive index anisotropy of a liquid crystal layer included in the Twisted Nematic liquid crystal display device, the sequential variations being caused by a region which is approximately regarded as a region in which liquid crystal molecules hybridly orient during voltage application, and the second retardation film having a refractive index anisotropy for compensating for a residual refractive index anisotropy which remains after the compensation performed by the first retardation film. This provides a composite retardation plate which is capable of highly accurately compensating for a refractive index anisotropy which may cause a decrease in contrast of a TN liquid crystal display device due to a viewing angle.
摘要:
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. The liquid crystal display device includes: a first substrate and a second substrate that are disposed opposite each other; and a liquid crystal layer that is interposed between the first substrate and the second substrate, and having, in a pixel area, a reflective area where reflective display is performed and a transmissive area where transmissive display is performed, wherein the first substrate has a first electrode provided in the transmissive area and the reflective area, a second electrode provided in the transmissive area and disposed parallel to and opposite the first electrode inside the pixel area, and a third electrode provided in the reflective area and disposed parallel to and opposite the first electrode inside the pixel area, the liquid crystal layer includes a p-type nematic liquid crystal and is driven by an electric field generated at least one of between the first electrode and the second electrode and between the first electrode and the third electrode, the p-type nematic liquid crystal is aligned perpendicular to the first substrate and the second substrate when no voltage is applied, a distance between the first electrode and the third electrode is different from a distance between the first electrode and the second electrode, and mutually different common signals are input to the second electrode and the third electrode.
摘要:
The present invention provides a liquid crystal display device that adopts a TBA mode that can suppress the occurrence of unevenness of luminance. The liquid crystal display device includes a pair of substrates disposed facing each other, and a liquid crystal layer sandwiched between the pair of substrates. One of the pair of substrates has a pair of comb-tooth-shaped electrodes. The pair of electrodes are disposed to planarly face each other in a pixel, and are formed by patterning the same layer. The liquid crystal layer includes 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 with respect to the surfaces of the pair of substrates when no voltage is applied. A spacing between the pair of electrodes varies in a longitudinal direction of the pair of electrodes.
摘要:
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. In the plan view of the first substrate and the second substrate, the liquid crystal display device has a first gap and a second gap between the first electrode and the second electrode; further, the first gap is covered with the third electrode and the second gap is not covered with the third electrode.
摘要:
The present invention provides a liquid crystal display device which can suppress generation of an afterimage. The present invention is a liquid crystal display device, includes: a first substrate and a second substrate which are disposed to face each other; and a liquid crystal layer sandwiched between the first substrate and the second substrate, wherein the first substrate has a comb type first electrode including a first branch portion and a comb type second electrode including a second branch portion, the first electrode and the second electrode are planarly disposed to face each other in a pixel, the liquid crystal layer includes p-type nematic liquid crystals and is driven by an electric field generated between the first electrode and the second electrode, the p-type nematic liquid crystals are aligned perpendicularly to the first substrate and second substrate surfaces when no voltage is applied, the first branch portion and the second branch portion extend diagonally with respect to a boundary line between adjacent pixels, and a distance between the first electrode and the second electrode is substantially uniform in an area surrounding an end of the first branch portion.
摘要:
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. The first substrate has a first electrode and a second electrode disposed parallel to and opposite the first electrode in the pixel area, the liquid crystal layer includes a p-type nematic liquid crystal and is driven by an electric field generated between the first electrode and the second electrode, the p-type nematic liquid crystal is aligned perpendicular to the first substrate and the second substrate when no voltage is applied, a thickness of the liquid crystal layer in the reflective area is substantially equal to a thickness of the liquid crystal layer in the transmissive area, and a distance between the first electrode and the second electrode in the reflective area is different from a distance between the first electrode and the second electrode in the transmissive area.
摘要:
The present invention provides a liquid crystal display device which can suppress generation of an afterimage. The present invention is a liquid crystal display device, includes: a first substrate and a second substrate which are disposed to face each other; and a liquid crystal layer sandwiched between the first substrate and the second substrate, wherein the first substrate has a comb type first electrode including a first branch portion and a comb type second electrode including a second branch portion, the first electrode and the second electrode are planarly disposed to face each other in a pixel, the liquid crystal layer includes p-type nematic liquid crystals and is driven by an electric field generated between the first electrode and the second electrode, the p-type nematic liquid crystals are aligned perpendicularly to the first substrate and second substrate surfaces when no voltage is applied, the first branch portion and the second branch portion extend diagonally with respect to a boundary line between adjacent pixels, and a distance between the first electrode and the second electrode is substantially uniform in an area surrounding an end of the first branch portion.
摘要:
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.
摘要:
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.
摘要:
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.