Patent application number | Description | Published |
20080211382 | Image display device - The present invention achieves a desired white color temperature without deteriorating white uniformity and without lowering brightness in a field emission display (FED). A width of a green phosphor is set larger than a width of a red phosphor or a width of a blue phosphor and, at the same time, a distance between the center of the red phosphor and the center of the green phosphor is set larger than a distance between the center of the blue phosphor and the center of the red phosphor. Due to such a constitution, black matrix widths between the respective phosphors are set to a fixed value. Simultaneously, positions of electron sources are set in conformity with the positions of the respective phosphors. Due to such a constitution, it is possible to realize a desired white color temperature without deteriorating landing tolerance of electron beams or without lowering a utilization efficiency of a phosphor screen. | 09-04-2008 |
20090153049 | Plasma display panel and plasma display apparatus - A plasma display panel is provided with a discharge cell comprising a discharge space, a phosphor film contacting with the discharge space, a holding portion (barrier ribs and a dielectric layer) sectioning the discharge space and holding the phosphor film on an opposite side to the discharge space side, and gas filled in the discharge space and emitting ultraviolet light by discharge. The phosphor film comprises a phosphor layer emitting visible rays by excitation caused by ultraviolet light and a reflecting layer reflecting visible rays, the phosphor layer is provided between the reflecting layer and the discharge space, a film thickness of the reflecting layer is 15 μm or thinner, and a refractive index of the reflecting layer is 1.7 or higher. | 06-18-2009 |
20120057111 | LIQUID CRYSTAL DISPLAY DEVICE - The liquid crystal display device according to the present invention is a liquid crystal display device provided with a liquid crystal display panel having; a first substrate; a second substrate; a sealing material provided between the first substrate and the second substrate so that the first substrate and the second substrate are pasted together; and a liquid crystal layer sealed in the region surrounded by the sealing material between the first substrate and the second substrate, wherein the second substrate has a color filter and a protective film for covering the color filter on the surface of the second substrate on the liquid crystal layer side, and an end of the protective film is located inside an end of the second substrate and between the two sides of the sealing material, which are opposite to each other (outer wall surface and inner wall surface). | 03-08-2012 |
20140218651 | Liquid Crystal Display Device - A liquid crystal display device including a liquid crystal display panel having, a first substrate, a second substrate, a sealing material provided between the first substrate and the second substrate, a liquid crystal layer sealed in a region surrounded by the sealing material between the first substrate and the second substrate. The first substrate includes a plurality of first cell regions having a pixel electrode and a thin film transistor arranged in a matrix, and the second substrate includes a protective film over the second substrate and a light blocking film coated with the protective film on a surface of the second substrate on the liquid crystal layer side. | 08-07-2014 |
Patent application number | Description | Published |
20080204619 | Display device - A display device in which gate drive circuits are formed at both sides of an effective screen, and a static charge shield conductive film is formed to cover the gate drive circuits. In the manufacturing step and after producing the display device, the constant voltage is applied to the static charge shield conductive film via the common pad, the earth connection line and the like. | 08-28-2008 |
20090050896 | Display device - The present invention provides a display device which forms a drive circuit using a bottom-gate-type TFT made of poly-Si which generates a small leak current in a periphery of a display region. A gate electrode is made of Mo having a high melting point, and a gate insulation film is formed on the gate electrode. A channel layer constituted of a poly-Si layer is formed on the gate insulation film, and the poly-Si layer is covered with an a-Si layer. An n+ Si layer is formed on the a-Si layer, and an SD electrode is formed on the n+ Si layer. Although holes are induced in the poly-Si layer when a negative voltage (inverse bias) is applied to the gate electrode, the holes cannot pass through the a-Si layer and hence, no drain current flows. Accordingly, it is possible to realize a bottom-gate-type TFT using poly-silicon which generates a small leak current. | 02-26-2009 |
20090121229 | Display device - In a display device which includes: an insulation substrate; thin film transistors which are formed on the insulation substrate; and terminal portions which are configured to supply voltages to the thin film transistors, the thin film transistor includes a gate electrode and a gate line which is formed of a material equal to a material of the gate electrode, a metal line is connected to the terminal portion, a first insulation film and a second insulation film which is made of a material different from a material of the first insulation film are sequentially stacked on the gate line, an opening which exposes the gate line is formed in the first insulation film and the second insulation film, a side wall surface of the opening is sequentially covered with a protective film, a first transparent conductive film and a third insulation film, the first transparent conductive film and a second transparent conductive film are sequentially stacked on an exposed portion of the gate line, and the second transparent conductive film is connected with the metal line. | 05-14-2009 |
20100032673 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a semiconductor layer which is formed of a poly-Si layer and an a-Si layer and formed above a gate electrode with a gate insulating film interposed therebetween. A source electrode or a drain electrode is formed above the semiconductor layer. An n+Si layer is formed between the source electrode or the drain electrode and the semiconductor layer. Since ends of the source electrode or the drain electrode are formed inside ends of the semiconductor layer, leak current at the ends of the semiconductor layer can be reduced. | 02-11-2010 |
20100109010 | DISPLAY DEVICE - A display device having thin film transistors which can efficiently suppress an OFF-leak current while suppressing the decrease of an ON current is provided. The display device includes an insulation substrate, and thin film transistors which are formed on the insulation substrate. Each thin film transistor includes a conductive layer on which a gate electrode is formed, a first insulation layer which is formed on the conductive layer, a semiconductor layer which is formed on the first insulation layer and has a first semiconductor film thereof formed above the gate electrode, the first semiconductor film having a first region and a second region which are spaced apart from each other on an upper surface thereof, a first electrode which is connected to the upper surface of the first semiconductor film via the first region, and a second electrode which is connected to the upper surface of the first semiconductor film via the second region. A portion of the gate electrode which is covered with the first semiconductor film is arranged closer to the first region than the second region. | 05-06-2010 |
20100230675 | DISPLAY DEVICE - A display device having a photosensor which exhibits excellent photoelectric conversion efficiency is provided. In a display device which forms photosensors on a substrate thereof, the photosensor is formed by sequentially stacking a gate electrode, a gate insulation film and a semiconductor layer in such an order or in an opposite order from a substrate side, and electrodes are connected to both sides of the semiconductor layer respectively, the semiconductor layer is formed of a stacked body consisting of a crystalline semiconductor layer and an amorphous semiconductor layer, and the crystalline semiconductor layer is arranged on the gate insulation film side. | 09-16-2010 |
20110221985 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - In order to prevent dielectric breakdown of TFT or an interlayer insulating film by static electricity with a reduced area at low cost, a liquid crystal display device has a configuration in which an interlayer insulating film and an a-Si film are formed in a display area and a control area inside terminals. Image signal lines and scan lines are insulated from each other through the interlayer insulating film and a-Si film in their intersections. On the other hand, only the interlayer insulating film is formed between static electricity protection lines and an earth line outside the terminals. When static electricity is induced, dielectric breakdown is caused to occur in the area outside the terminals. Thus, the display area and the control area are protected from the static electricity. | 09-15-2011 |
20120074297 | PHOTOSENSOR AND PHOTOSENSOR ARRAY - A photosensor array includes plural photosensor pixels. Each of the photosensor pixels includes a lower electrode, an amorphous silicon film, an n-type amorphous silicon film, and an upper electrode. The photosensor array includes plural scanning lines connected to the upper electrodes, plural read lines connected to the lower electrodes, a scanning circuit that is connected to the plural scanning lines, and sequentially supplies a selection scanning signal of a first voltage to the respective scanning lines, a first unit that inputs a second voltage higher than the first voltage to the plural read lines in a blanking period of one horizontal scanning period, and thereafter puts the plural read lines into the floating state, and a second unit that outputs a voltage change in each of the read lines within one horizontal scanning period as the sensor output voltage of the photosensor pixel. | 03-29-2012 |
20120074298 | PHOTOSENSOR AND PHOTOSENSOR ARRAY - A photosensor includes a lower electrode formed of a metal film, an amorphous silicon film disposed on the lower electrode, an n-type amorphous silicon film disposed on the amorphous silicon film, an upper electrode that is disposed on the n-type amorphous silicon film, and receives a first reference voltage, a capacitive element connected between the lower electrode and a second reference voltage, a switch circuit that inputs a first supply voltage to the lower electrode in an on-state, and puts the lower electrode into a floating state in an off-state, and a detector circuit that detects a voltage change in the lower electrode after irradiating the amorphous silicon film for a given period with light when the switch circuit is on. | 03-29-2012 |
20120074406 | PHOTOSENSOR - A photosensor includes a photosensor array in which plural photosensor pixels are arranged in a matrix form and a backlight arranged below the photosensor array. The photosensor array includes a surface light-shielding film (for example, Al film), and the surface light-shielding film includes an incident hole through which light from an opposite side to the backlight is incident on the respective photosensor pixels, and a passage hole which is provided around the incident hole and irradiates the opposite side with irradiation light from the backlight. | 03-29-2012 |
20120120331 | DISPLAY DEVICE - There is provided a technology capable of reducing crosstalk at the time of 3D display in a display device using a liquid crystal lens that forms cylindrical lenses by controlling a voltage applied to a liquid crystal panel. The display device includes a liquid crystal display panel which includes a substrate including a plurality of strip-shaped transparent electrodes and a plurality of strip-shaped light shielding portions overlapping with the electrodes. The display device displays an image by switching a two-dimensional display and a three-dimensional display, and the cylindrical lenses making up a parallax barrier, are formed by controlling a refraction index of a liquid crystal layer. | 05-17-2012 |
20120242913 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal lens is provided on a liquid crystal display panel. Electrodes extending vertically to a plane of drawing are provided on an upper substrate of the liquid crystal lens at predetermined intervals. No electrodes are provided on a lower substrate. An initial alignment of liquid crystal molecules in the liquid crystal lens is vertically directed with respect to the plane of the drawing. A voltage applied to the upper substrate electrodes generates a transverse electric field to rotate the liquid crystal molecules. Polarization light emitted from the liquid crystal display panel is vertically directed to the plane of the drawing, which generates a refractive index distribution of the polarization light in a liquid crystal layer to form a convex lens within the liquid crystal lens. This lens allows first and second pixels to be recognized by right and left eyes to allow a three-dimensional display. | 09-27-2012 |
20120257127 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device, a first substrate adjacent to a liquid crystal display panel is subjected to rubbing in a first direction that is the same as a polarization axis direction of light emitted from the liquid crystal display panel, and a second substrate that interposes a liquid crystal layer with the first substrate is subjected to rubbing in a second direction at a right angle with the first direction. The second direction is made the same as the polarization axis direction of polarized sunglasses to allow visual recognition of the image using the polarized sunglasses. Electrode patterns formed by alternately providing narrow and wide electrodes are arranged on the upper and lower substrates in a direction at a right angle with each other so that the rubbing directions on the upper and lower substrates form a right angle to ensure stable 3D display. | 10-11-2012 |
20120293503 | IMAGE DISPLAY DEVICE AND LIQUID CRYSTAL LENS - An image display device includes: a display panel having a plurality of pixels disposed in a matrix; and a liquid crystal lens disposed on the side of a display surface of the display panel, wherein the pixels of the display panel are divided into a plurality of pixel groups each including two or more pixels, the liquid crystal lens forms, by application of an electric field, a lens array having a plurality of lens portions each corresponding to each of the pixel groups, the lens portion is configured to have a first area having a constant refractive index and a second area having a distribution of refractive index, the second area is disposed at a side portion of the lens portion, and the first area is disposed closer to the center than the second area. | 11-22-2012 |
20120314144 | DISPLAY DEVICE - A display device, having: a display panel; and a liquid crystal lens panel for switching a 2D display and a 3D display with each other, and for forming a parallax barrier by controlling the refractive index as in a cylindrical lens, wherein the liquid crystal lens panel has: a pair of transparent substrates; comb-shaped electrodes, which are formed on the liquid crystal layer side of one of the transparent substrates, run in the X direction and are aligned in the Y direction; flat common electrodes; and post spacers having light transmitting properties for holding the pair of transparent substrates at a predetermined distance, wherein the post spacers are fixed to one of the pair of transparent substrates on the liquid crystal side and are placed in regions away from the comb-shaped electrodes in a plane of the transparent substrate. | 12-13-2012 |
20130038811 | Display Device - In order to provide a display device capable of improving the display quality at the time of 2D display and 3D display, the present invention provides a display device that includes: a display panel that displays an image; and a liquid, crystal lens panel that is arranged on the display surface side of the display panel, controls a refractive index in a cylindrical lens manner to form parallax barriers, and switches 2D display and 3D display, and the liquid crystal lens panel includes: a first transparent substrate that is arranged on the display panel side; a second transparent substrate that is arranged to face the first substrate through a liquid crystal layer; and a first polarizing plate that is formed on the display surface side of the second transparent substrate to control a polarization direction of light transmitting through the liquid crystal lens panel. | 02-14-2013 |
20140106640 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - A method of manufacturing a liquid crystal display device having a substrate with a display area, a control area adjacent to the display area, and terminals. The method includes forming an interlayer insulating film and an a-Si film below an image signal line in the display area and below a line in the same layer as the image signal line in the control area, forming a scribing line outside the terminals, forming a ground line in the same layer as the scan line outside the scribing line, forming the interlayer insulating film outside the terminal, without forming the a-Si film on the interlayer insulating film, forming a static electricity protection line coupled to the terminal on the interlayer insulating film, the static electricity protection line being coupled to other static electricity protection lines outside the ground line, and, after the steps above, separating the substrate along the scribing line. | 04-17-2014 |
20140192283 | Display device with display panel forming image display and LCD panel having strip-shaped electrodes and light shielding portion - There is provided a technology capable of reducing crosstalk at the time of 3D display in a display device using a liquid crystal lens that forms cylindrical lenses by controlling a voltage applied to a liquid crystal panel. The display device includes a liquid crystal display panel which includes a substrate including a plurality of strip-shaped transparent electrodes and a plurality of strip-shaped light shielding portions overlapping with the electrodes. The display device displays an image by switching a two-dimensional display and a three-dimensional display, and the cylindrical lenses making up a parallax barrier, are formed by controlling a refraction index of a liquid crystal layer. | 07-10-2014 |
20140232949 | Display Device - A display device having a liquid crystal lens arranged on a display panel, wherein the display panel includes pixels arranged in a first direction and arranged in a second direction intersecting with the first direction. Each of the pixels includes a plurality of sub-pixels arranged in a first direction and having a first width in the first direction and a second width in the second direction, and the liquid crystal lens is formed by interposing a liquid crystal between a first substrate and a second substrate. The first substrate includes a plurality of first electrodes in stripes, extending in the first direction, and arranged in the second direction, and the second substrate includes a plurality of second electrodes in stripes and a plurality of third electrodes in stripes, extending in the second direction, and arranged in the first direction at predetermined intervals. | 08-21-2014 |