Abstract: An electrically controlled viewing angle switching device including a first electrode, a second electrode, a liquid crystal layer, multiple dye molecules, and a polarizer is provided. The second electrode is disposed opposite to the first electrode. The liquid crystal layer is disposed between the first electrode and the second electrode and has an optical axis. The dye molecules are dispersedly disposed in the liquid crystal layer. Each of the dye molecules is arranged corresponding to the optical axis of the liquid crystal layer. The polarizer is stacked on the liquid crystal layer. The axial direction of the optical axis of the liquid crystal layer is perpendicular to the axial direction of the transmission axis of the polarizer. A display device using the electrically controlled viewing angle switching device is also provided.

Abstract: A mobile computer including a liquid crystal display, a first illumination source, a second illumination source for illuminating through a portion, and a lens.

Abstract: A liquid crystal capsule includes: a shell; and a liquid crystal molecule in the shell, wherein a critical surface tension of the shell is smaller than a critical surface tension of the liquid crystal molecule. Further, the liquid crystal molecule includes a nematic liquid crystal and the shell includes polytetramethyldisiloxane. The liquid crystal capsule also includes an additive in the shell and the additive has a critical surface tension smaller than that of the liquid crystal molecule.

Abstract: A lighting system may include one or more light sources and one or more light guides. A lighting system may be integrated into a window, a skylight, an exterior light such as a headlight, a tail light, or a high center-mounted stop light, or other exterior or interior portions of a system such as a vehicle. The light guide may be embedded in an adhesive layer in a vehicle structure. The light guide may be index-matched to the adhesive layer so that unilluminated portions of the light guide are indistinguishable from the vehicle structure. The light guide may be formed from optical fibers. The optical fibers may include a light-scattering optical fiber that scatters light out of the vehicle structure. The light-scattering optical fiber may be fused to a non-scattering optical fiber that guides light from a light source to the light-scattering optical fiber.

Abstract: The present invention provides a display device which includes a first substrate, a second substrate, a third substrate, and a fourth substrate. The first substrate and the second substrate are arranged opposite to each other. The third substrate and the fourth substrate are arranged opposite to each other. A liquid crystal layer is located between the first substrate and the second substrate. A bistable polymer dispersed liquid crystal layer is located between the third substrate and the fourth substrate. A band-pass filter is located between the liquid crystal layer and the bistable polymer dispersed liquid crystal layer. A backlight module is located on one side of the fourth substrate away from the third substrate.

Abstract: An anti-reflection structure and a fabrication method thereof, a display device and a fabrication method thereof are provided. The anti-reflection structure includes a retardation film, a linear polarizer sheet, and at least one alignment layer, configured to align the retardation film and the linear polarizer sheet, wherein, the retardation film and the linear polarizer sheet include liquid crystal.

Abstract: A display panel including a first substrate, a second substrate, a first display medium layer, a polarizing layer, and a second display medium layer is provided. The first display medium layer is disposed between the first substrate and the second substrate. The first display medium layer includes a first base material and a plurality of first encapsulated particles immobilized in the first base material. The average size of the first encapsulated particles is 1 nm to 400 nm. The polarizing layer is disposed between the first display medium layer and the second substrate. The polarizing layer is in contact with the first display medium layer. The second display medium layer is disposed between the polarizing layer and the second substrate.

Abstract: A liquid crystal display device includes a first substrate and a second substrate facing and spaced apart from each other, each of the first and second substrates including a pixel region; a first liquid crystal layer disposed on an inner surface of the first substrate and including a plurality of first liquid crystal capsules; a second liquid crystal layer disposed on an inner surface of the second substrate and including a plurality of second liquid crystal capsules; and a polarizer disposed between the first liquid crystal layer and the second liquid crystal layer, wherein each of the plurality of first liquid crystal capsules and the plurality of second liquid crystal capsules includes liquid crystal molecules and dichroic dyes.

Abstract: An OLED touch display device includes an OLED display and a laminated package component. The laminated package component covers the OLED display and includes a quarter-wave plate, a liquid crystal polarizer and a touch sensor unit. The touch sensor unit is a single-layer electrode structure.

Abstract: A light shielding apparatus that may transmit or shield light by using a plurality of PDLC layers, a method of fabricating the light shielding apparatus, and a transparent display device including the light shielding apparatus are discussed. The light shielding apparatus can include first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and first and second polymer dispersed liquid crystal layers between the first electrode and the second electrode, wherein the first polymer dispersed liquid crystal layer includes first droplets having first liquid crystals, and the second polymer dispersed liquid crystal layer includes second droplets having second liquid crystals and first dichroic dyes.

Abstract: Apparatus and associated methods relate to a Dynamic Ultraviolet Light System (DUVLS) that directs ultraviolet (UV) light at an intensity controlled by a user or in response to an ambient light level to maintain a photochromic target lens in a darkened state. In an illustrative example, the target lens may be located in a brightly lighted environment separated by a UV filter from a broadband light source, such as the sun. The dynamic ultraviolet light system may have its output intensity regulated by a user or by a controller responsive to a light sensor. The light sensor may be configured to detect the ambient light level to which the target lens is being exposed. Various embodiments may advantageously enhance a user's vision by maintaining the user's spectacles with photochromic lenses, in a darkened state while the user is in a brightly lighted environment with substantially attenuated natural UV light levels.

Abstract: An information handling system includes a flexible display screen, first and second display platforms, and a plurality of micro-beads. The flexible display screen is movably mounted to the first and second display platforms. The plurality of micro-beads is coated on the flexible display screen, and the plurality of micro-beads comprises a protective layer of increase hardness relative to the flexible display screen.

Abstract: In order to manufacture a lens array substrate including a multistage lens array which is formed on a translucent substrate, a first lens layer, a first translucent layer, a second lens layer, and a second translucent layer are stacked in order on a mother substrate. At the same time, a first metal layer is formed between the first lens layer and the first translucent layer, and in the removing of the first metal layer, the first metal layer is removed from a position overlapping with at least the center of a concavity in a plane view, and remains at least at an end portion of the mother substrate as a first buffer layer.

Abstract: An OLED touch display device includes an OLED display and a laminated package component covering the OLED display and including a quarter-wave plate, a liquid crystal polarizer, a first touch sensor layer and a second touch sensor layer. The first touch sensor layer and the second touch sensor layer are configured to cooperatively detect touch events.

Abstract: An OLED touch display device includes an OLED display and a laminated package component. The laminated package component covers the OLED display and includes a quarter-wave plate, a liquid crystal polarizer and a touch sensor unit. The touch sensor unit is a single-layer electrode structure.

Abstract: A mirror array is positioned in relationship to a high intensity power light source to receive at least a portion of a high intensity light beam and to reflect at least a portion of the high intensity light beam. An aperture plate is positioned between the high intensity power light source and the mirror array. The aperture plate has an open area and an opaque area, the open area including a main portion and a tab portion. The main portion is located on a side of the tab portion distal from an incident light direction of the received high intensity beam of light. The open area is sized and positioned to allow rays of the high intensity beam of light to be passed through the tab portion and reflections of the passed rays of the high intensity beam of light to exit through the main portion.

Abstract: An information handling system includes a flexible display screen, first and second display platforms, and a plurality of micro-beads. The flexible display screen is movably mounted to the first and second display platforms. The plurality of micro-beads is coated on the flexible display screen, and the plurality of micro-beads comprises a protective layer of increase hardness relative to the flexible display screen.

Abstract: An EC region (second region) of an organic EL display device (1) has an optical interference layer which is a multilayer of (i) an edge cover (7) made from an acrylic resin having a lower refractive index, (ii) an organic layer (8), and (iii) a second electrode (9) which is a thin and semi-transparent film. Therefore, the organic EL display device (1) can suppress a deterioration in contrast without narrowing a display region, and can have a high reliability.

Abstract: A liquid crystal device comprising a first substrate; a second substrate; and a liquid crystal layer sandwiched between the first substrate and the second substrate, the liquid crystal layer comprising a nematic liquid crystal material and a polymer network. The polymer network is anchored to said first substrate and is configured to alternatingly induce splay deformation and bend deformation of the nematic liquid crystal material along a line parallel with the first substrate. Hereby, the relaxation time ?fall of the liquid crystal device is reduced.

Abstract: A projector can be easily attached by mounting a connecting unit to a socket for illumination in an ordinary home. Since the projector includes a communication unit configured to receive an electronic mail, the projector updates an image signal and adjusts a diffusion degree of modulated light by a light-diffusion adjusting unit on the basis of contents of the mail received by the communication unit. Therefore, when a user desires to inform family members who will return home that the user suddenly has to go out, if the user transmits in advance, to the projector, a mail including a message for a family member who returns home, the family member who returns home turns on an illumination switch at the entrance, whereby the projector can start up, perform an illuminating function, and clearly project and display the message.

Abstract: In an embodiment, an optical device includes a first substrate; a second substrate; a liquid crystal layer; a plurality of first electrodes; a second electrode; and a light shielding portion. The liquid crystal layer provided between the first substrate and the second substrate. The plurality of first electrodes is provided on the first substrate and arranged in a first direction, extending in a second direction. The second electrode is provided on the second substrate. The light shielding portion is configured to be provided at a position between the first substrate and the second substrate to overlap with the first electrodes when viewed from the third direction. The light shielding portion covers a less space than the first electrodes.

Abstract: Example embodiment are directed to a reflective display device including a polymer-dispersed liquid crystal (PDLC) layer between a first substrate and a second substrate, and a mirror reflection plate on the first substrate.

Abstract: A display device for capturing and displaying images along a single optical axis, having an image capture device for capturing the objective image through the display panel when the display device is in a second transmissive state; an image supply source for providing an image to a display panel when the display panel is in a first display state; a mechanism for alternating placing the display panel between the first display state and second transmissive state such that an image can be viewed on the display screen and the object can be captured such that the alternating between the first display state and the second transmissive state is substantially imperceptible to a user of the display panel; and a mechanism for providing digitally image processing for captured images prior to display.

Abstract: Disclosed is an apparatus and method for making temporary colorful birefringent displays. In its preferred embodiment, cellophane 104 is laminated between self-adherent vinyl sheets 108 with non-water soluble adhesive 112 and desired shapes 212 are cut therefrom. Plane polarizing filter 213 is similarly laminated between sheets of self-adherent vinyl 214. One of the polarizer laminations is adhered to a gloss surface such as a window 217. Shapes 212 cut from the cellophane-vinyl laminations are adhered to the polarizer lamination 215. Colors created by the polarized light passing through the birefringent cellophane laminations 100 are viewed through a polarizing analyzer 230 which can be a second lamination of polarizer between self-adherent vinyl sheets and placed over the completed design, or through analyzers held separately from the design such as polarized glasses 218 or hand held viewers 222, 230. Transmissive 214 and reflective 304 and transflective 604 types are disclosed.

Abstract: An image display apparatus includes a light source, a color separation unit configured to separate light from the light source into colored light beams, liquid crystal display devices each configured to modulate a corresponding one of the colored light beams in accordance with an image signal, light-shielding members each configured to block light that enters an area outside an effective display area of a corresponding one of the liquid crystal display devices, a color combination unit configured to combine the colored light beams that have been modulated by the liquid crystal display devices, and a projection unit configured to project light produced by combining the colored light beams with the color combination unit, wherein the liquid crystal display devices are fixed to a heatsink, and wherein the light-shielding members each include a base member fixed to the heatsink and a mask member detachably mounted on the base member.

Abstract: A liquid crystal display having reduced power consumption. The liquid crystal display includes a liquid crystal display panel having a plurality of pixels and a plurality of pixel memories. A pixel voltage is stored in a pixel memory in an on screen display (OSD) region of the liquid crystal display panel for displaying a still image for a long period of time and driving a liquid crystal cell by the stored pixel voltage. Also, the power consumption of the liquid crystal display can be reduced by using a NAND gate or a NOR gate as a circuit element for alternating a voltage between low level and high level so as to store a pixel voltage in a pixel memory of the liquid crystal display.

Abstract: An imaging system (200), such as a scanned laser projection system, includes one or more laser sources (201) configured to produce one or more light beams (204), and a light modulator (203) configured to produce images (206) from the light beams (204). Optional optical alignment devices (220) can be used to orient the light beams (204) into a combined light beam (205). A birefringent wedge (221) is disposed between at least one of the laser sources (201) and the light modulator (203). The birefringent wedge (221) is configured to receive light from the laser sources (201) and deliver two angularly separated and orthogonally polarized light beams (223) to the light modulator (203) so as to reduce speckle appearing when the images (206) are displayed on a display surface (207). An optional glass wedge (1004) can be used to correct optical path deviation (1001) introduced by the birefringent wedge (221).

Abstract: An image display apparatus includes a light source, a color separation unit configured to separate light from the light source into colored light beams, liquid crystal display devices each configured to modulate a corresponding one of the colored light beams in accordance with an image signal, light-shielding members each configured to block light that enters an area outside an effective display area of a corresponding one of the liquid crystal display devices, a color combination unit configured to combine the colored light beams that have been modulated by the liquid crystal display devices, and a projection unit configured to project light produced by combining the colored light beams with the color combination unit, wherein the liquid crystal display devices are fixed to a heatsink, and wherein the light-shielding members each include a base member fixed to the heatsink and a mask member detachably mounted on the base member.

Abstract: A method for manufacturing a liquid crystal display includes the following steps. First, source/drain and a bottom electrode are formed over a color filter substrate with a color filter layer. The next step forms source/drain junction regions over the source/drain. A channel region is also formed between the source/drain in this step. A gate dielectric layer and a gate are formed over the channel region and the source/drain junction regions in this step as well. Moreover, a plurality of stack layers and an upper electrode are formed over the bottom electrode in this step, too. Then, a pixel electrode is formed to electrically connect one of the source/drain and the bottom electrode. Then, a passivation layer pattern is formed to cover the source/drain, the gate, the upper electrode and the bottom electrode by backside exposure. Finally, a plurality of steps are performed to finish the liquid crystal display.

Abstract: An imaging system (200), such as a scanned laser projection system, includes one or more laser sources (201) configured to produce one or more light beams (204), and a light modulator (203) configured to produce images (206) from the light beams (204). Optional optical alignment devices (220) can be used to orient the light beams (204) into a combined light beam (205). A beam separator (221), which can be any of a birefringent wedge, compensated birefringent wedge, or a polymerized liquid crystal layer, is disposed between at least one of the laser sources (201) and the light modulator (203). The beam separator (221) is configured to receive light from the laser sources (201) and deliver two angularly separated and orthogonally polarized light beams (223) to the light modulator (203) so as to reduce speckle appearing when the images (206) are displayed on a display surface (207).

Abstract: A display device for capturing and displaying images along a single optical axis, having an image capture device for capturing the objective image through the display panel when the display device is in a second transmissive state; an image supply source for providing an image to a display panel when the display panel is in a first display state; a mechanism for alternating placing the display panel between the first display state and second transmissive state such that an image can be viewed on the display screen and the object can be captured such that the alternating between the first display state and the second transmissive state is substantially imperceptible to a user of the display panel; and a mechanism for providing digitally image processing for captured images prior to display.

Abstract: A display system includes a display arranged to receive an image wise pattern of light to form an image, including, a pair of conductors, at least one conductor being transparent, a layer of cholesteric liquid crystal material disposed between the conductors, the liquid crystal material having multiple stable optical states at zero electrical field, and a light absorber for forming an image wise thermal pattern in the liquid crystal sufficient to change the optical state of the cholesteric liquid crystal in response to an image wise pattern of light; a display writer, including, a light source for producing a flash of light of sufficient intensity to generate sufficient heat in the light absorber to change the optical state of the cholesteric liquid crystal, a mask located between the light source and the display for defining the image wise pattern of light, a display drive connectable to the conductors for generating an electric field between the conductors for changing the optical state of the cholesteric l

Abstract: A liquid crystal display device having a high quality able to prevent deterioration etc. of a liquid crystal panel even when a liquid crystal panel used in a light valve of a projector etc. is operated under a high temperature and high humidity environment and a projection type display apparatus using the liquid crystal display device, wherein a liquid crystal layer 16 is sandwiched between a pair of substrates formed by bonding a TFT array substrate 11 and a counter substrate 12 by a sealing material 15 so that they face each other across a predetermined gap, the sealing material 15 contains a nonconductive filler having a mean particle size of less than 0.5 ?m, a liquid crystal material used in the liquid crystal layer 16 is set in its refractive index anisotropy an at room temperature to 0.16 or more, and a cell gap d of an interval between the TFT array substrate 11 and the counter substrate 12 is set at 3 ?m or less.

Abstract: A display device for capturing and displaying images along a single optical axis. The device includes a display panel having a front side and a back side, said display panel capable of being placed in a first display state which allows displaying of an image on said front side for viewing of an image and a second transmissive state wherein said display panel becomes substantially transmissive so as to allow capture of an image of an object positioned in front of said front side of said display panel. An image capture device is provided for capturing said objective image through said display panel when said display device is in the second transmissive state.

Abstract: Heat generation is inhibited in a polarized light generating optics system in a projector. A liquid crystal projector includes: lens arrays 140, 150 that generate partial light beams from a light beam emitted from a light source; and a polarized light generating optics system 160 that generates polarized light, which is to be supplied to liquid crystal light valves, from the partial light beams. The polarized light generating optics system 160 separates s-polarized light and p-polarized light by polarization separating films 64a. The s-polarized light is reflected from reflecting films 64b and is emitted directly. The p-polarized light is converted into s-polarized light by a selective phase difference plate 66 and is emitted therefrom. The polarized light generating optics system 160 is equipped with light shielding surfaces 62b that shield light from entering into the reflecting films 64b.

Abstract: Projection systems having o-plate compensation elements are described. The compensation elements may be negative, positive or biaxial anisotropic element and may have a homogeneous tilt or a splayed tilt. The compensation elements may be formed from a polymer liquid crystal. The compensation elements are designed to maximize azimuth-averaged contrast. The compensation elements may be placed on the same side of a liquid crystal panel when a micro-lens array is used to improve the ease of manufacture.

Abstract: An image capture and display device includes an electronic motion image camera for capturing the image of a subject located in front of the image display device and a digital projector for projecting the captured image. An optical element provides a common optical axis electronic camera and the digital electronic camera, and a light valve projection screen electronically switchable between a transparent state and a frosted state, is located with respect to the common optical axis for allowing the electronic camera to capture the image of the subject through the projection screen when in the transparent state and for displaying the captured image on the projection screen when in the frosted state.

Abstract: An anisotropic scattering film, wherein said film has a sea-island structure comprising a matrix phase consisting of at least one polymeric material, and a dispersed phase consisting of at least one polymeric material, wherein the dispersed phase is rod-like, the dispersed phase substantially orientates to one direction, the refractive index of the dispersed phase in the major axis direction differs from the refractive index of the matrix phase in the corresponding direction, the diameter of the dispersed phase is 200 nm or less, and the length of the dispersed phase is 800 nm or more.

Abstract: A liquid crystal display panel including first and second substrates, and a FLC layer interposed therebetween. A small quantity of additives are mixed in the FLC layer, without changing the electrical or chemical properties of the FLC. Under a proper temperature and an electric field, the FLC layer is ripened sufficiently. Thereafter, the FLC is exposed to light such that polymer networks are formed in the FLC layer due to the polymerization by the additives. The polymer networks connect with each other across molecular layers in the FLC such that the molecules of the FLC are stabilized in proper orientations and maintain their molecular layer structure regardless of the temperature variance. And, the diffraction grating becomes stable regardless of the temperature variance, and fast response time and good gray scale are achieved.

Abstract: A compound having formula (5) wherein: D5 is an electron donor moiety; C5 is a conjugated bridging moiety; A5 is an electron acceptor moiety; R5 is a spacer moiety; S5 is a hydrocarbon, a heterocyclic moiety, or a hetero-acyclic moiety; and c? is an integer.

Abstract: A liquid crystal display device includes a pair of opposing substrates, a liquid crystal film sandwiched between the opposing substrates, plural electrodes of a first kind disposed on an inner surface of one of the opposing substrates for defining plurality pixels, at least one electrode of a second kind disposed on an inner surface of one of (1) the one of the pair of opposing substrates so as to be adjacent to, but spaced from the plural electrodes of the first kind and (2) another of the opposing substrates so as to face the plural electrodes of the first kind, and at least one spacer disposed approximately at a center of at least one of the plural pixels for establishing a spacing between the opposing substrates. The at least one spacer is fixed to one of the opposing substrates and covered with one of (1) a corresponding one of the plural electrodes of the first kind and (2) a corresponding one of the at least one electrode of the second kind.

Abstract: Two electric fields that are directed to respective directions rectangular relative to each other are selectively applied to polymer dispersed liquid crystal by means of electrodes arranged to sandwich the polymer dispersed liquid crystal and electrodes arranged along a substrate to uniformly orient the liquid crystal in either of the directions. While conventional polymer dispersed liquid crystal is adapted to utilize scatter of light in a randomly oriented state, the polymer dispersed liquid crystal of this invention is adapted to utilize a uniformly oriented state to improve the efficiency of scattering light. The present invention is also applicable to devices where polymer dispersed liquid crystal has a memory property.

Abstract: A liquid crystal display (LCD) projector in which temperature rise of the polarizing plate is reduced and the liquid crystal display panels and polarizing plates are easily retained in place. In the LCD projector, at least one of the incident light side polarizing plate and the exit light side polarizing plate has a first polarizing plate disposed on the incident light side of a glass substrate and a second polarizing plate disposed on the exit light side of the glass substrate. The first polarizing plate has a low degree of polarization and the second polarizing plate has a high degree of polarization and the polarizing plates are arranged to have their axes of transmission polarization coincident. The temperature rise due to absorption of light is shared by the first and second polarizing plates and this contributes to reduction in size of the projector.

Abstract: The invention provides a system for varying the transmittance of light through selected portions of a media on which images are displayed, the system including an image display panel, an image display source for projecting images on the media, LC-based, variable transmittance optical (VTO) media, a light sensor for measuring ambient light, and a signal generator connected to the VTO media for applying voltage to portions of the media at levels determined and controlled by the sensor, whereby the transmittance of light through the portions of the media is varied in accordance with the prevailing ambient light. A method is also provided.

Abstract: An optical member comprising an optical material or a laminated body of the optical materials in a shape a sheet or a film and an adhesive layer at least on one side thereof, wherein a repulsive force when deformed at 180° in radius of 25 mm with 25 mm width shows 0.2 to 0.8 N, is used in a liquid crystal display. The optical member have a peeling strength may be decreased without decrease in adhesive strength of adhesive itself to enable easy formation of trigger for peeling.

Abstract: A transparent filter including a sheet-shaped body and numerous linear conductive elements arrayed on a surface thereof, which is adapted to be disposed in front of an image device having rectangular pixels; wherein the conductive elements with a linewidth of 50 &mgr;m or less are arrayed on the sheet-shaped body in two directions with a pitch P1 and a pitch P2, respectively; an aperture ratio of the filter is not less than 70%; and when lengths of a pixel of the image device in the vertical direction Y and in the horizontal direction X are denoted by W1 and W2, respectively, P1, P2, W1 and W2 satisfy a relation expressed by the following Equation (1) and Equation (2), n1+0.35≦W1/P1≦n1+0.65  (1) n2+0.35≦W2/P2≦n2+0.65  (2) The use of the transparent filter can increase the aperture ratio in comparison with that of a conventional mesh, and besides the disposal thereof in front of an image device having rectangular pixels can make the moire inconspicuous.

Abstract: In a projection apparatus, a light beam emitted by a light source is guided to a modulation element for forming an image. The light beam emerged from the modulation element is projected onto a screen by a projection lens. An image of the light source is formed as a first light source image by a first optical system. The light beam from the modulation element illuminated with light emanating from the first light source image is imaged by a second optical system as a second light source image at a potion in the vicinity of an aperture of a stop of the projection lens. A peripheral portion of the first light source image is intercepted by another stop located at a potion conjugate with the stop of the projection lens.

Abstract: Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double-panel projection type display device. The count of the G (green) color data that can be written is increased compared with the count for the other primary colors, or the display period for green can be extended. The repetitive unit is set to R, G, B and G, so that a satisfactory refresh rate can be set for the important color G. Therefore, the overall refresh frequency and the power consumed by the display device can be reduced without deterioration of the display quality, and requests for the time response speeds by the display device can be reduced.

Abstract: A liquid crystal display apparatus is provided in which occurrence of a moiré pattern can be prevented without largely reducing front luminance. A liquid crystal display apparatus 1 includes a surface light source 4, a liquid crystal display panel 2, and first and second prism sheets 5 and 6 for condensing light emitted from the surface light source 4 and guiding the light toward the liquid crystal display panel. The first and second prism sheets 5 and 6 are disposed such that prism array directions thereof are orthogonal to each other. When a pixel pitch of the liquid crystal display panel 2 is defined as Pp [?m]; a prism array pitch of the first prism sheet 5 is defined as Px [?m]; and a prism array pitch of the second prism sheet 6 is defined as Py [?m], relationships of Px?Pp/(14?0.045 Pp) and Py?Pp/(11.5?0.032 Pp) are satisfied.

Abstract: A liquid crystal display apparatus is provided in which occurrence of a moiré pattern can be prevented without largely reducing front luminance. A liquid crystal display apparatus 1 includes a surface light source 4, a liquid crystal display panel 2, and first and second prism sheets 5 and 6 for condensing light emitted from the surface light source 4 and guiding the light toward the liquid crystal display panel. The first and second prism sheets 5 and 6 are disposed such that prism array directions thereof are orthogonal to each other. When a pixel pitch of the liquid crystal display panel 2 is defined as Pp [?m]; a prism array pitch of the first prism sheet 5 is defined as Px [?m]; and a prism array pitch of the second prism sheet 6 is defined as Py [?m], relationships of Px?Pp/(14?0.045 Pp) and Py?Pp/(11.5?0.032 Pp) are satisfied.