Abstract:
PROBLEM TO BE SOLVED: To provide an image projector which has such constitution that optical components including image display elements are adhered closely to one another, then, can be made compact. SOLUTION: A light pipe 2B, an incident-side polarizer 5B, the image display element 7B and an exit-side polarizer 9B are arranged on at least one optical path among optical paths of the lights emitted from a plurality of color light sources 1A to 1C. Light pipes 1A and 1C, prisms 3A and 3C, incident-side polarizers 5A and 5C, image display elements 7A and 7C and exit-side polarizers 9A and 9C are arranged on other optical paths. By separately fixing the prisms 3A and 3C and a color compositing part 21 to pedestals, the light incident surfaces of the image display elements 5A and 5C joined to the color compositing part 21 through the exit-side polarizers are adhered closely to the light exit surfaces of the incident-side polarizers 5A and 5C integrally molded with the light exit surfaces of the prisms 3A and 3C. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a PS polarization separating and converting element which has a simple structure and a constitution for attaining miniaturization. SOLUTION: The PS polarization separating and converting element is provided with a first prism 10 and a second prism 20, wherein a bottom face 13 of the first prism 10 and a first slant 21 of the second prism are oppositely disposed via a polarization beam splitter 30, a quarter wavelength plate 31 and a first reflection mirror 32 are disposed on a second slant 12 of the first prism. An S-polarization component of light made incident from a first slant 11 of the first prism is converted into a P-polarization component via the polarization beam splitter 30, the quarter wavelength plate 31, the first reflection mirror 32, the quarter wavelength plate 31 and the polarization beam splitter 30 and is emitted from the bottom face of the second prism, and the P-polarization component made incident from the first slant 11 is emitted from the bottom face 23 of the second prism via the second slant face 22 of the second prism. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To apply inter-pixel electrode voltage by switching reference voltage connected to a driver. SOLUTION: At first, the voltage values of reference voltage GNDc supplied to a column driver and reference voltage GNDr supplied to a row driver are GND (0V), the GNDr is connected to row electrodes X1 to X3 and the GNDc is connected to column electrodes Y1 to Y3. Then a switch is controlled, voltage (V1+V2) is supplied to the GNDr at prescribed time width, and in the next timing, the voltage (V1+V2) is supplied to the GNDc at the prescribed time width. Consequently a bipolar pulse of (V1+V2) is applied between pixel electrodes of the pixels (X1, Y1) to (X3, Y3), so that a cholesteric liquid crystal layer between two electrodes is in a planer state and the whole surface is reset to the planer state. This invention can be applied to a liquid crystal display apparatus or a driving circuit of the liquid crystal display apparatus. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To extend the life and improve the light-emitting efficiency of a semiconductor light-emitting element. SOLUTION: The semiconductor light-emitting element includes a semiconductor light-emitting chip 11, and a lens 12 having a high refraction factor which lens 12 covers the periphery of the semiconductor light-emitting chip 11. A space between the chip 11 and the lens 12 is filled with a resin 13 containing fine grains. The resin 13 is formed by so mixing a number of fine grains 15 which are made of a dielectric material, have a high refraction factor, and have an average grain diameter of 100 nm or less, uniformly into a light-transmitting resin 14 that each gap between the grains 15 is 200 nm or less. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To more efficiently utilize light by using a direct-view-type liquid crystal display device. SOLUTION: A light source 91 emits a light ray. A polarization converting element 93 converts a light ray with a polarization direction different from that of a light ray transmitted by the liquid crystal display device into a light ray with a polarization direction identical to that of the light ray transmitted by the liquid crystal display device. A light pipe 94 uniformizes an intensity distribution of the light ray on a plane perpendicular to the advancing direction of the light ray. A projection lens 72 projects a uniformized light ray with a polarization direction identical to that of the light ray transmitted by the liquid crystal display device on the liquid crystal display device. The method is applicable to a display device utilizing the direct-view-type liquid crystal display device. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To suppress crosstalk due to a shift of the view point of an observer who observes a direct-vision type stereoscopic display device. SOLUTION: A luminance signal 1r2g3b4r5g6b7r8g9b displayed on a display device 102 is a luminance signal of a display image composed of image data picked up at different positions corresponding to view points of stereoscopic display. The view point of the observer shifts from a right view point by 2 cm to the left side in Fig., pixels viewed with the left eye 81 and right eye 82 shift from the correct right view point by a 1/3 pixel to the right in Fig., but the view point of a camera picking up image signals corresponding to respective luminance signals 1r2g3b4r5g6b7r8g9b is only slightly different, so their images are highly correlative. Consequently, the images are not viewed by the observer as double images and recognized nearly original images. This invention is applicable to a stereoscopic display device. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To apply a voltage between pixel electrodes by switching reference voltages to be connected to drivers. SOLUTION: The voltage values of a reference voltage GNDc supplied to a column driver and a reference voltage GNDr supplied to a row driver are GND (0V). The voltage GNDr is connected to row electrodes X1 to X3 and the voltage GNDc is connected to column electrodes Y1 to Y3. Then a switch is controlled so as to supply a voltage (V1+V2) to the GNDr over a specified time width and so as to supply a voltage (-V1-V2) to the GNDc over a specified time width on the next timing. Thereby bipolar pulses of (V1+V2) is applied between pixel electrodes of pixels from (X1, Y1) to (X3, Y3) and consequently a cholesteric liquid crystal layer between the two electrodes turns into a planar state so as to reset the entire full surface to the planar state. This invention is applicable to a liquid crystal display device and to a driving circuit of the liquid crystal display device. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To read information employing a simply constituted pickup device without adversely affected by magnetism while skillfully utilizing a unique characteristic which was found during the process of research on the various properties of polyimide. SOLUTION: A polyimide disk or a disk whose surface is coated with polyimide is irradiated with excimer laser 22 so that concentric circular or spiral patterns including information are drawn. Then, polyimide 14 is metalized according to the information and metallic luster is provided. When the disk is irradiated with reading laser, the amounts of reflection of the laser beams from a metalized portion and from a portion which is not metalized are made different. Therefore, the reading of the information is possible using the above phenomenon and the polyimide 14 is used as an information recording medium. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a display device in which unevenness of luminance is little and the numerical aperture can be improved, and an adverse effect to the organic electroluminescence element due to heat is prevented, and the component cost is suppressed. SOLUTION: An organic electroluminescence element 13 as a light-emitting point 14 is formed on the translucent substrate 12, and an individual connecting part 15 is formed on the first electrode layer 21 for each organic electroluminescent element 13. Since the flat configuration of the individual connecting part 15 is rectangular, elliptic or L-shape, the light-emitting point 14 becomes larger compared with the conventional circular connecting point. The individual connecting point 15 is connected electrically by the common connecting layer 26 for each line. A first wiring 28A for connecting to the drive circuit substrate is connected to the end of the common connecting layer 26. On the other hand, a second wiring 28B is connected to the end of the second electrode layer 23. The first and the second wiring 28A, 28B are concentrated on the nearly center of the transmissive substrate 12 and connected to the drive circuit substrate by being collected by a single connector.
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element capable of providing sufficient display contrast even if used in an organic EL display, by reducing the reflection of light by a metal electrode layer. SOLUTION: The organic electroluminescent element 1 has a transparent electrode layer 11 permeable to light, a conductive metal electrode layer 13, and an organic electroluminescent layer 12 formed therebetween. The metal electrode layer 13 is formed by the co-deposition of a metallic material composed chiefly of aluminum and a fluoride.