Abstract: An image display apparatus is provided that enables the chromaticity of a display screen of a display apparatus to be adjusted to the chromaticity desired by a user. The image display apparatus is formed by a backlight unit that is provided with a plurality of light sources and by an image display panel that is placed at a front surface of the backlight unit. The image display apparatus performs a monochrome display. In the image display apparatus, the light sources have at least three different types of luminescent colors that surround a target color on a chromaticity diagram.

Abstract: A double-sided liquid crystal display device including a liquid crystal material, first and second electrodes for driving the liquid crystal material, first and second polarizers disposed on opposite sides of the liquid crystal material, a front light disposed at the opposite side of the first polarizer from the liquid crystal material, and a semitransmission reflector disposed at the same side of the liquid crystal material as the second polarizer for passing a part of light from the front light side passing through the liquid crystal. The first polarizer is disposed to absorb or transmit light passing through the liquid crystal material, and the second polarizer is disposed to absorb or transmit light passing through the liquid crystal material and then passing through the semitransmission reflector.

Abstract: A liquid crystal display according to the present invention includes: a liquid crystal cell 10, in which pixels having independently driven reflecting and transmitting members are arranged in a matrix, that is composed of a first substrate 15, a second substrate 17 having pixel driving members, and a liquid crystal 16 sandwiched between the first substrate 15 and the second substrate 17; a first polarizing means 13 disposed facing the first substrate 15; a second polarizing means 19 disposed facing the second substrate 17; a first front light 6 disposed outside the first polarizing means 13; and a second front light 7 disposed outside the second polarizing means 19. Owing to the configuration of the display, images can be displayed on both sides of the liquid crystal display.

Abstract: A display device includes a light guide plate which includes a light transmission portion and an antireflection portion at two opposite end faces and which is provided with a light extraction portion in part of a surface, respective light sources which are arranged on outer sides of the two opposite end faces, a transmission liquid crystal panel located adjacent to the light extraction portion, and a synchronous drive unit that alternately turns ON the light sources and that displays an image that is synchronous with an alternating turn-ON operation the transmission liquid crystal panel.

Abstract: A stereoscopic image display apparatus having a low image data input rate, in which the required capacity of a memory is reduced without causing flicker and ghosts. In the invention, right and left parallax image data is compressed, the compressed image data is stored in a frame memory, each of compressed image data for a right eye and compressed image data for a left eye, corresponding to the same display gate line, is read and decoded, line by line, and parallax image data for the right and left eyes for one frame are displayed multiple times, as alternating right and left fields, within one frame period.

Abstract: A stereoscopic image display apparatus having a low image data input rate, in which the required capacity of a memory is reduced without causing flicker and ghosts. In the invention, right and left parallax image data is compressed, the compressed image data is stored in a frame memory, each of compressed image data for a right eye and compressed image data for a left eye, corresponding to the same display gate line, is read and decoded, line by line, and parallax image data for the right and left eyes for one frame are displayed multiple times, as alternating right and left fields, within one frame period.

Abstract: The present invention is directed to provide a driving circuit and driving method for a LCD having high performance of moving image displaying within few amount of memory and downscaled circuit. In the present invention, a voltage applied to a pixel to drive liquid crystal material in the pixel is determined as a voltage with which the transparency of the pixel at the end of the current field becomes the designated transparency. To determine the voltage, a data table for quick response in which output data is stored in correspondence with some of the possible value of a preceding field image data and some of the possible value of the current field image data is employed, and the output data corresponding to the preceding field image data and the current field image data is determined by the data table through linear interpolation. The voltage corresponding to the output data is applied to the pixel.

Abstract: A double-side liquid crystal display device including a liquid crystal material, first and second electrodes for driving the liquid crystal material, first and second polarizers disposed on opposite sides of the liquid crystal material, a front light disposed at the opposite side of the first polarizer from the liquid crystal material, and a semitransmission reflector disposed at the same side of the liquid crystal material as the second polarizer for passing a part of light from the front light side passing through the liquid crystal. The first polarizer is optically disposed to absorb or transmit light passing through the liquid crystal material, and the second polarizer is optically disposed to absorb or transmit light passing through the liquid crystal material and then passing through the semitransmission reflector.

Abstract: A double-sided liquid crystal display device including a liquid crystal material, first and second electrodes for driving the liquid crystal material, first and second polarizers disposed on opposite sides of the liquid crystal material, a front light disposed at the opposite side of the first polarizer from the liquid crystal material, and a semitransmission reflector disposed at the same side of the liquid crystal material as the second polarizer for passing a part of light from the front light side passing through the liquid crystal. The first polarizer is disposed to absorb or transmit light passing through the liquid crystal material, and the second polarizer is disposed to absorb or transmit light passing through the liquid crystal material and then passing through the semitransmission reflector.

Abstract: A display system includes light sources disposed at two different light input ends of a light guiding plate; a double-sided prism sheet disposed on a light emitting side of the light guiding plate, and having on a first surface facing the light guiding plate a triangular prism bank extending in a direction parallel to the light input ends of the light guiding plate, and on a second surface, opposite to the first surface, a cylindrical lens bank extending in a direction parallel to the triangular prism bank; a transmissive display panel disposed on a light emitting side of the double-sided prism sheet; and a synchronization driving section causing the transmissive display panel to display two different images in synchronization with the light sources, wherein light from the light sources is emitted through the transmissive display panel at angles corresponding to right and left parallax, producing a stereoscopic display.

Abstract: A transmissive display apparatus comprises a liquid crystal display unit; and a plane light source unit that comprises a tubular light source, a light guide, and a light-diffusing film having anisotropy that provides a consistent luminance in a display surface, and/or ultraviolet (UV) absorbability that absorbs the UV from the light source and prevents deterioration of a prism sheet in the display unit and liquid display cell. In the film, a light-scattering characteristic F(?) represents a relationship between the light-scattering angle ? and a scattered light intensity F fulfills Fy(?)/Fx(?)?1.01 over a range of ?=4 to 30°, wherein Fx(?) and Fy(?) represent the light-scattering characteristics in an X-axial direction and Y-axial direction of the film, respectively. The film comprises a light-diffusing layer composed of a plurality of resins which are different from each other in refractive index, and a transparent layer laminated on at least one side thereof.

Abstract: An image display apparatus is provided that enables the chromaticity of a display screen of a display apparatus to be adjusted to the chromaticity desired by a user. The image display apparatus is formed by a backlight unit that is provided with a plurality of light sources and by an image display panel that is placed at a front surface of the backlight unit. The image display apparatus performs a monochrome display. In the image display apparatus, the light sources have at least three different types of luminescent colors that surround a target color on a chromaticity diagram.

Abstract: A liquid crystal display device comprising a including signal correcting means correction for correcting a level of an original image signal to a level with which transmittance in a steady state of the pixel with the original image signal is attained within one frame period, a horizontal driving means for driver applying a voltage in correspondence with the corrected image signal to a liquid crystal material, and an illumination device for illuminating the display panel with a plurality of light emitting regions thereof, said the light emitting regions sequentially turns turning on and off in synchronization with the application of the corrected image signal, while holding a definite time delay thereto.

Abstract: The present invention is directed to provide a driving circuit and driving method for a LCD having high performance of moving image displaying within few amount of memory and downscaled circuit. In the present invention, a voltage applied to a pixel to drive liquid crystal material in the pixel is determined as a voltage with which the transparency of the pixel at the end of the current field becomes the designated transparency. To determine the voltage, a data table for quick response in which output data is stored in correspondence with some of the possible value of a preceding field image data and some of the possible value of the current field image data is employed, and the output data corresponding to the preceding field image data and the current field image data is determined by the data table through linear interpolation. The voltage corresponding to the output data is applied to the pixel.

Abstract: The present invention is directed to provide a driving circuit and driving method for a LCD having high performance of moving image displaying within few amount of memory and downscaled circuit. In the present invention, a voltage applied to a pixel to drive liquid crystal material in the pixel is determined as a voltage with which the transparency of the pixel at the end of the current field becomes the designated transparency. To determine the voltage, a data table for quick response in which output data is stored in correspondence with some of the possible value of a preceding field image data and some of the possible value of the current field image data is employed, and the output data corresponding to the preceding field image data and the current field image data is determined by the data table through linear interpolation. The voltage corresponding to the output data is applied to the pixel.

Abstract: A liquid crystal display device comprising a signal correcting means for correcting a level of an original image signal to a level with which transmittance in a steady state of the pixel with the original image signal is attained within one frame period, a horizontal driving means for applying a voltage in correspondence with the corrected image signal to liquid crystal, and an illumination device for illuminating the display panel with a plurality of light emitting regions thereof, said light emitting regions sequentially turns on and off in synchronization with the application of the corrected image signal while holding a definite time delay thereto.

Abstract: A reflective liquid crystal display device having a structure providing high contrast even if there is undesired light. The structure includes a light-guiding plate for receiving, from a light-incident surface, light coming from a light source, and for allowing the light to exit from a bottom surface; a reflective liquid crystal display panel opposed to the bottom surface of the light-guiding plate; and a prism disposed on the side of a top surface of an upper substrate of the liquid crystal display panel. The prism has a surface that is substantially perpendicular to the top surface of the upper substrate, and a tilted surface which is tilted towards a side opposite to the light source from a crest line of the substantially perpendicular surface at a tilt angle with respect to an imaginary surface which passes through the crest line and which is parallel to the top surface of the upper substrate.

Abstract: A double-side display type liquid crystal display device including a liquid crystal, first and second electrodes for driving the liquid crystal, first and second polarizing means disposed on both sides of the liquid crystal, a front light disposed at the opposite side of the liquid crystal of the first polarizing means, and semitransmission reflecting means disposed at the second polarizing means side of the liquid crystal for passing a part of light from the front light side passing through the liquid crystal. The first polarizing means is optically disposed so as to absorb or transmit light passing through the liquid crystal, and the second polarizing means is optically disposed so as to absorb or transmit light passing through the liquid crystal and then passing through the semitransmission reflecting means.

Abstract: A compact and light weight front light, a reflective liquid crystal display device, and a personal digital assistant providing an image display of uniform brightness with high efficiency are provided. The front light includes a main optical guide plate and a second optical guide plate. The second optical guide plate is arranged at an end of the main optical guide plate along the widthwise direction, and, on an end surface opposite an end surface facing the main optical guide plate, grooves forming prisms are aligned along the longitudinal direction, extending in the depth direction. The front light further includes a point light source arranged at an end, in the longitudinal direction, of the second optical guide plate, and a reflective film covering the surfaces of the grooves.

Abstract: A transmissive display apparatus 21 comprises a liquid crystal display unit 22 and a plane light source unit 23. The unit 23 comprises a tubular light source 24, a light guide 25 having a wedge-shaped reflecting groove formed at the bottom thereof, and a light-diffusing film 27 having anisotropy and/or ultraviolet (UV) absorbability. In the film, a light-scattering characteristic F(&thgr;) representing the relationship between the light-scattering angle &thgr; and a scattered light intensity F fulfills Fy(&thgr;)/Fx(&thgr;)≧1.01 over a range of &thgr;=4 to 30°, wherein Fx(&thgr;) and Fy(&thgr;) represent the light-scattering characteristics in the X-axial direction and the Y-axial direction of the film, respectively. The film comprises a light-diffusing layer composed of a plurality of resins which are different from each other in refractive index, and a transparent layer laminated on at least one side thereof. The transparent layer at least may contain a UV absorber.