Patent application number | Description | Published |
20100053455 | BACKLIGHT DEVICE, DISPLAY APPARATUS, AND TELEVISION RECEIVER - In a backlight device including a plurality of cold cathode fluorescent tubes, a pitch of the cold cathode fluorescent tube provided on one end in a direction perpendicular to the longitudinal directions of the cold cathode fluorescent tubes with respect to a center line passing through a center in the perpendicular direction of a diffusion plate is differentiated from a pitch of the cold cathode fluorescent tube provided on the other end in the perpendicular direction with respect to the center line. | 03-04-2010 |
20100066945 | BACKLIGHT DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER - A backlight device is provided with a cold cathode fluorescent tube as a first light source that emits light of green, and a cold cathode fluorescent tube as a second light source that can be switched on independently from the first light source and emits light of red and blue. A diffusion member provided on the light source side of a diffusion plate is disposed opposite to the first light source so as to diffuse green light. | 03-18-2010 |
20100141572 | ILLUMINATION DEVICE AND DISPLAY DEVICE USING THE SAME - An active-backlight-type image display device includes an illumination device that enables a cost reduction of a light source and can display an image more accurately by eliminating an influence on temperature characteristics. In a so-called active-backlight-type display device, an illumination device includes a plurality of light sources that correspond one to one to a plurality of divided display regions and whose number is the same as that of the divided display regions, and a light transmission medium that transmits light emitted from each of the light sources to the divided display region corresponding to the light source to irradiate the same. Brightness of the plurality of light sources is controlled individually, so that an amount of irradiation light is controlled. | 06-10-2010 |
20100201613 | ILLUMINATING DEVICE AND DISPLAY DEVICE PROVIDED WITH THE SAME - An illuminating device in which luminance unevenness caused by a lamp holder of a tubular light source is reduced is provided as a large-area, thin illuminating device formed as a surface-emitting light source by an edge light method, and a thin, large-screen display device with low power consumption that is able to obtain a display image quality that is not a problem on a practical level is provided, by using the illuminating device as a backlight of a display element that displays an image by controlling transmission of light. The illuminating device includes a tabular light guide including a light emitting surface that is preferably substantially rectangular, tubular light sources provided respectively opposite two opposing lateral surfaces of the light guide, and at least one pair of lamp holders respectively holding the tubular light sources at intermediate portions of two opposing lateral surfaces of the light guide, and the lamp holders in the pair are disposed so as to be displaced from each other in a tube axis direction of the tubular light sources. | 08-12-2010 |
20100208165 | LIGHT CONTROL LAYER OF BACKLIGHT, BACKLIGHT, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT CONTROL LAYER OF BACKLIGHT - A light control layer ( | 08-19-2010 |
20110007237 | LAMP HOLDER, BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a lamp holding tool provided with lamp holding sections arranged in a same direction at fixed intervals, and flat-board like connecting sections whereupon the lamp holding sections are fixed. The lamp holding section has a shape which can abut to the lamp on different parts depending on relative angles to the lamp. As for the lamp holding sections, a distance between the lamps is changed by an angle formed by the arrangement direction of the lamp holding sections and the axis direction of the lamps. | 01-13-2011 |
20110211133 | OPTICAL SHEET LAMINATE, BACKLIGHT DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER - An optical sheet laminate | 09-01-2011 |
20130050589 | LIGHTING DEVICE, DISPLAY DEVICE AND TELEVISION DEVICE - A technology to suppress or prevent an uplift of a reflection sheet included in a direct type lighting unit is provided. A direct type backlight unit according to the present invention includes an LED board | 02-28-2013 |
20130094187 | LED BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - Disclosed are a direct LED backlight device and a liquid crystal display device, which is provided with the backlight device. In the LED backlight device (BL | 04-18-2013 |
Patent application number | Description | Published |
20090268125 | LIGHTING UNIT, BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY DEVICE - In a lighting unit, fluorescent lights and LEDs of different spectroscopic characteristics are alternately arranged in a direction X on an irradiation plane. Light sources of equal light intensity are arranged in a certain pitch for the fluorescent lights such that a uniform light amount is achieved around end portions in the direction X. The LEDs include LEDs aligned on a bottom surface of a chassis and LEDs arranged on an inner sidewall surface of the chassis. As a result, a lighting unit having a uniform amount of light across an entire irradiation plane is achieved. | 10-29-2009 |
20100020533 | LIGHT SOURCE UNIT AND DISPLAY DEVICE - A light source unit prevents deterioration of display qualities, caused by “sagging” of a diffuser and includes a light source, a diffuser, and a light source chassis, the light source and the diffuser being arranged in this order from the bottom within the light source chassis. A mounting base is arranged below a corner of the diffuser, a holding member is arranged above the corner of the diffuser, the mounting base and the holding member are coupled with each other, and the diffuser is interposed between the mounting base and the holding member. The holding member preferably has a light-shielding property and the mounting base and the holding member are coupled with each other, with a screw, for example. | 01-28-2010 |
20100079976 | LIGHT SOURCE UNIT AND DISPLAY DEVICE - A light source unit that prevents deterioration of display qualities, caused by “sagging” of a diffuser, includes a light source, a diffuser, and a light source chassis, the diffuser having a main surface facing the light source, the diffuser being arranged within the light source chassis. The light source unit includes a mounting base at least below a corner of the diffuser, the mounting base includes a diffuser-mounted portion and a projection portion, the projection portion being arranged along an outer edge of the diffuser, the projection portion has a light-shielding property, and the projection portion is arranged to be above a level of an upper surface of the diffuser. | 04-01-2010 |
20100085732 | LIGHT SOURCE UNIT AND DISPLAY DEVICE - A light source unit prevents deterioration of display qualities, caused by “sagging” of a diffuser, and includes a diffuser and a light source, the diffuser being arranged above the light source, wherein the light source unit includes a light-shielding member covering a side surface of a corner of the diffuser, and preferably the light-shielding member covers an edge of an upper surface and a side surface of the diffuser, or the light-shielding member covers an edge of an upper surface of the optical sheet and further covers side surfaces of the diffuser and optical sheet. | 04-08-2010 |
20100225844 | LAMP HOLDER, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE - A lamp holder is attached to an end of a narrow lamp to secure the lamp to an edge of a reflector for reflecting light from the lamp and has an abutment surface abutting a surface of the edge of the reflector and a sandwiching portion arranged to sandwich the edge of the reflector between the abutment surface and the sandwiching portion. | 09-09-2010 |
Patent application number | Description | Published |
20090059581 | Display Device - In one embodiment of the present invention, a liquid crystal panel includes a plurality of R sub-pixels that transmit red light, and a plurality of GB sub-pixels that transmit green and blue light. An R backlight emits red light continuously, whereas a G backlight for emitting green light and a B backlight for emitting blue light glow intermittently at mutually exclusive times, each backlight glowing once within one screen display period. A circuit for driving the liquid crystal panel drives the R sub-pixels based on a video signal, and the GB sub-pixels based on either a video signal selected in accordance with the glowing of the G backlight and the B backlight. Red blinking is prevented in such a manner, thereby preventing photosensitive epilepsy. Thus, it is possible to achieve a display device that provides a bright display screen without any adverse effect on the physical condition of humans. | 03-05-2009 |
20090140657 | Light Source Device, a Display Device and Television Receiver - A light source device and a display device are disclosed of which high display quality can be maintained by correcting luminance or a color tone without making a user feel strangeness or inconvenience. A light source device is disclosed in at least one embodiment, including light source blocks each of which has red-color light-emitting diodes, green-color light-emitting diodes and blue-color light-emitting diodes and is capable of independently adjusting luminance of the three color diodes, a photo-receiving mechanism arranged to photo-receive light, and a correcting operation control mechanism arranged to calculate correction amounts of the luminance of the light sources in each of the blocks based on photo-receiving amounts of the photo-received light in order to maintain uniform luminance or a uniform color tone among the blocks, wherein the mechanism controls the mechanism to photo-receive the light when a termination operation of the light source device is performed. | 06-04-2009 |
20090153462 | ILLUMINATION DEVICE AND DISPLAY APPARATUS PROVIDED WITH THE SAME - A display apparatus that can perform a high quality moving picture display and provides improved color purity, and an illumination device used in the display apparatus are provided. The display apparatus includes an illumination device that includes a first light source that emits light of a first color and a second light source that emits light of a second color complementary to the first color, a gate driver that sequentially selects each of scanning lines at a cycle of 0.5 frames, a data driver that, at a first half of one frame time period, writes a data signal into each of pixels of the first color, and at a latter half thereof, writes a data signal into each of pixels of the other two colors; and a switch circuit that, at the first half of one frame time period, switches on the first light source while switching off the second light source, and at the latter half of the time period, switches on the second light source while switching off the first light source. | 06-18-2009 |
20090207585 | ILLUMINATION DEVICE FOR DISPLAY DEVICE AND DISPLAY DEVICE WITH THE SAME - An illumination device for a display device has cold cathode tube lamps capable of being driven in parallel, a first holding member having holders equivalent in number to the number of the cold cathode tube lamps and each holding one end of each lamp, a second holding member having holders equivalent in number to the number of the cold cathode tube lamps and each holding the other end of each lamp, and an electric power source device. Harness lines connected to one end of the electric power source device and the first holding member are interconnected at multiple points, and harness lines connected to the other end of the electric power source device and the second holding member are interconnected at multiple points. This reduces uneven brightness. The illumination device for a display device can be used as backlight for a liquid crystal TV. | 08-20-2009 |
20090244408 | Liquid crystal display device - A liquid crystal display apparatus including a backlight with reduced power consumption is disclosed. The liquid crystal display apparatus according to one embodiment of the present invention includes a liquid crystal display panel, a backlight, and a backlight adjusting portion. To the liquid crystal display panel, an image signal of a certain channel selected from a plurality of channels of television broadcasting, or an image signal output from external equipment is input. The backlight emits light toward the liquid crystal display panel. The backlight adjusting portion turns off the backlight for a predetermined period of time when the selected channel is changed and/or when the input to the liquid crystal display panel is switched between the television broadcasting and the external equipment. | 10-01-2009 |
20090256994 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY - In a backlight unit including fluorescent tubes and a diffusion unit overlapped with each other, optical materials with different transmittances are contained in a holding layer positioned between a diffusion plate and a lenticular lens layers. | 10-15-2009 |
20100201919 | LIQUID CRYSTAL DISPLAY DEVICE - The color gamut of a liquid crystal display device of the field sequential system is sufficiently improved. | 08-12-2010 |
Patent application number | Description | Published |
20100045890 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY - A diffusion plate (DL) allowing the light from a fluorescent tube ( | 02-25-2010 |
20100073592 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY APPARATUS - In a backlight unit ( | 03-25-2010 |
20100097532 | ILLUMINATION DEVICE FOR DISPLAY DEVICE AND DISPLAY DEVICE WITH THE SAME - An illumination device for a display device, the illumination device including a chassis that has lamps mounted on its front face and also has a connector mounted on its rear face and also including an inverter unit having mounted on it an inverter circuit and an inverter-side connector. A positioning through-hole is provided in the inverter unit, a positioning marking is provided on the chassis and the positioning marking is placed at a position viewable from the positioning through-hole with the inverter unit attached to the rear face of the chassis. When the connector and the inverter-side connector are connected to each other, the positional relationship between the chassis and the inverter unit is fixed. The illumination device can be used as backlight for liquid crystal TV receiver. | 04-22-2010 |
20100110332 | OPTICAL MEMBER UNIT, LIGHTING DEVICE FOR DISPLAY, DISPLAY, AND TELEVISION RECEIVER - An optical member | 05-06-2010 |
20100134524 | DISPLAY DEVICE - In one embodiment of the present invention, a display device is disclosed that can realize a wide color reproduction region and high color purity while maintaining a configuration of a display element having a high resolution and a high numerical aperture. The display device includes: an illumination device including a first light source that emits light of a first color and a second light source that emits light of a complementary color with respect to the first color; a gate driver that successively selects each of the scanning lines at a cycle of 0.5 frame; a data driver that writes a data signal into pixels of the first color and into at least one of pixels of a second color and a third color at a first half of one frame time period and writes a data signal into the pixels of the second color and the third color at a latter half thereof; and a switch circuit that switches on the first light source and switches off the second light source at the first half of one frame time period and switches on the second light source and switches off the first light source at the latter half of the time period. | 06-03-2010 |
20100134721 | OPTICAL MEMBER UNIT, LIGHTING DEVICE FOR DISPLAY, DISPLAY, AND TELEVISION RECEIVER - An optical member | 06-03-2010 |
20100149225 | ILLUMINATOR AND DISPLAY HAVING SAME - A display apparatus can perform a high quality moving picture display and provides improved color purity, and includes an illumination device that prevents and minimizes light unevenness in the form of a lamp image. The display apparatus includes an illumination device in which a first scattering layer, a first light-condensing layer, a second scattering layer, and a second light-condensing layer are arranged so as to cover a light-radiating surface of a light source unit including a first light source that emits light of a first color and a second light source that emits light of a second color complementary to the first color, a gate driver arranged to sequentially select each one of scanning lines at a cycle of 0.5 frames, a source driver that, at a first half of one frame time period, writes a data signal into each in a group of pixels of the first color, and at a latter half thereof, writes a data signal into each in groups of pixels of other two colors, and a switch circuit that, at the first half of one frame time period, switches on the first light source while switching off the second light source, and at the latter half of the time period, switches on the second light source while switching off the first light source. | 06-17-2010 |
20140132888 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY APPARATUS - In order to prevent unevenness in planar light and reduce power consumption, a backlight unit A that emits planar light towards a front side thereof has a light-shielding part | 05-15-2014 |
20140313772 | ILLUMINATION DEVICE, AND DISPLAY DEVICE PROVIDED THEREWITH - An illumination device capable of increasing the luminance of an entire screen is provided. In this illumination device ( | 10-23-2014 |
20140320747 | ILLUMINATION DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVING DEVICE - The backlight device ( | 10-30-2014 |