Patent application number | Description | Published |
20080198591 | FLUORESCENT LAMP, BACKLIGHT ASSEMBLY HAVING THE SAME AND METHOD OF ASSEMBLING THE SAME - A fluorescent lamp includes a fluorescent tube, a thermal electron, a first cover electrode and a second cover electrode. The fluorescent tube has a discharge space. The thermal electron emitting part is disposed in the discharge space. The first cover electrode is disposed at an end portion of the fluorescent tube, and is electrically connected to a first end portion of the thermal electron emitting part. The second cover electrode is spaced apart from the first cover electrode disposed at the end portion of the fluorescent tube, and is electrically connected to a second end portion of the thermal electron emitting part. The thermal electron emitting part is electrically connected to the first cover electrode and the second cover electrode. | 08-21-2008 |
20080309851 | FLAT LIGHT SOURCE UNIT, METHOD FOR MANUFACTURING THE SAME, AND BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A flat light source unit includes a discharge tube including discharge channels and partitions formed between the discharge channels, a main electrode portion formed at first and second ends of the discharge channels, a sub-electrode portion connected to the main electrode portion, and a thermistor connected between the main electrode portion and the sub-electrode portion and having a resistance value which changes depending on temperature. There are also provided a method for manufacturing the flat light source unit, and a backlight assembly and a liquid crystal display (“LCD”) having the flat light source unit. | 12-18-2008 |
20090001400 | TWO DIMENSIONAL LIGHT SOURCE USING LIGHT EMITTING DIODE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE TWO DIMENSIONAL LIGHT SOURCE - A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to the wires through the holes, a buffer layer covering the LED chip, and an optical layer that is disposed on the buffer layer and has an optical pattern formed at a portion of the optical layer corresponding to the LED chip. | 01-01-2009 |
20090050848 | METAL HYDROXY CARBONATE NANOPARTICLE COATED PHOSPHOR AND METHOD FOR PREPARING THE SAME - Disclosed herein are a metal hydroxy carbonate nanoparticle-coated phosphor and a preparation method thereof. The phosphor coated with metal hydroxy carbonate nanoparticles exhibit improved thermal stability and an increased luminance lifespan, when applied to display devices, e.g., PDPs and lamps. | 02-26-2009 |
20090059131 | LAMP AND LIQUID CRYSTAL DISLAY INCLUDING THE SAME - Disclosed is a lamp and a liquid crystal display device having the same. The lamp includes a discharge tube having an inner wall coated with a phosphor; a first electrode containing a first metallic material having a first sputtering rate provided at one end of the discharge tube; and a second electrode containing a second metallic material having a second sputtering rate provided at the other end of the discharge tube, wherein the first sputtering rate is larger than the second sputtering rate. | 03-05-2009 |
20090075082 | METHOD FOR PREPARING NANOPHOSPHOR FROM METAL HYDROXY CARBONATE AND NANOPHOSPHOR PREPARED BY THE METHOD - Disclosed herein is a method for preparing a nanophosphor from a metal hydroxy carbonate and a nanophosphor prepared by the method. The method is capable of mass-production of a uniform particle-size nanophosphor with superior dispersibility and enables reduction in preparation costs. The nanophosphor prepared by the disclosed method exhibits high luminescence efficiency. | 03-19-2009 |
20090129063 | OPTICAL PACKAGE, OPTICAL LENS AND BACKLIGHT ASSEMBLY HAVING THE SAME - In an optical package capable of guiding light, and an optical lens and a backlight assembly having the optical package, the optical package includes a plurality of light emitting parts and a lens plate. The lens plate defines a plurality of lens parts corresponding to the light emitting parts, respectively. The lens plate has a plurality of light guiding portions extended from the lens parts in a side direction of the optical package. | 05-21-2009 |
20090135341 | BACKLIGHT ASSEMBLY, LIQUID CRYSTAL DISPLAY HAVING THE SAME, AND METHOD OF MANUFACTURING BACKLIGHT ASSEMBLY - The present invention relates to a backlight assembly, in which a lamp starting performance can be improved and an assembly process can be simplified, a liquid crystal display having the backlight assembly, and a method of manufacturing the backlight assembly. A backlight assembly according to the present invention includes a body, a phosphor film formed on an inside of the body, and an afterglowing material film formed on the outside of the body. Accordingly, a dark starting time can be shortened by improving a lamp starting performance of a light source. | 05-28-2009 |
20090146943 | LIGHT SOURCE MODULE, DISPLAY DEVICE HAVING THE SAME, AND A METHOD THEREOF - A light source module includes a plurality of light source units arranged in a matrix form and independently emitting light, and a light source control unit. The light source control unit includes a column control unit supplying a column control signal to a plurality of light source unit columns according to a brightness signal, a row control unit supplying a row control signal to a plurality of light source unit rows according to the brightness signal, and a brightness regulation unit supplying the brightness control signal to the column control unit and the row control unit. The plurality of light source units successively emit light for one frame in a light source column direction or a light source row direction, according to the brightness signal, the column control signal and the row control signal. | 06-11-2009 |
20090174307 | FLUORESCENT MIXTURE FOR FLUORESCENT LAMP, FLUORESCENT LAMP, BACKLIGHT ASSEMBLY HAVING THE SAME AND DISPLAY DEVICE HAVING THE SAME - A fluorescent lamp includes a lamp body, a fluorescent layer and a discharge electrode. The lamp body has a discharge space in which ultraviolet light is generated. The fluorescent layer is formed on an inner surface of the lamp body to change the ultraviolet light into visible light. The discharge electrode is on an end portion of the lamp body to apply a voltage to the discharge space. A ratio of intensities of the visible light at wavelengths of about 545 nm and about 516 nm is about 1.32:1 to about 1.71:1. Therefore, color reproducibility and luminance may be improved. | 07-09-2009 |
20090184622 | LAMP AND DISPLAY DEVICE HAVING THE SAME - A lamp and a display device including the lamp, in which the lamp includes a discharge tube, a discharge gas, a blue fluorescent substance, a green fluorescent substance and a red fluorescent substance. The discharge gas is disposed in the discharge tube. The blue, green and red fluorescent substances are disposed at an inner wall surface of the discharge tube to generate a blue light, a green light and a red light by ultraviolet rays emitted by the discharge gas. The red fluorescent substance includes at least two different red fluorescent substances, which generate the red light having peak wavelengths different from each other. Thus, the color reproducibility may be improved using the two different red fluorescent substances. | 07-23-2009 |
20090256480 | LAMP AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A lamp and a liquid crystal display including the lamp, the lamp including a lamp tube into which a discharge gas is injected, an internal electrode portion disposed at each of a first end and a second end at an inner side of the lamp tube, an electrode lead connected to each of the internal electrode portions and extending to an exterior side of the lamp tube, and a transparent cap disposed on outer surface of each of the first end and the second end of the lamp tube. | 10-15-2009 |
20090284181 | BACKLIGHT UNIT ASSEMBLY, DISPLAY DEVICE HAVING THE SAME, AND METHOD OF DIMMING THE DISPLAY DEVICE - A backlight unit assembly includes a surface light source with a plurality of first electrode lines extending in a first direction, a plurality of second electrode lines and a plurality of discharge blocks defined in regions where the first and second electrode lines cross each other, respectively; a memory stores discharge/non-discharge data; a luminance calculator calculates luminances of a selected region based on an image signal; and a dimming controller outputs dimming control signals corresponding to the calculated luminances by using the discharge/non-discharge data stored in the memory. A first driving signal is transmitted to one of the first electrode lines, a second driving signal having a different waveform from the first driving signal is transmitted to another of the first electrode lines adjacent the above first electrode line, and a driving voltage is applied to one of the second electrodes lines that crosses the above two first electrode lines. | 11-19-2009 |
20090284949 | OPTICAL ELEMENT, LIGHT-EMITTING DEVICE HAVING THE SAME AND METHOD OF MANUFACTURING THE SAME - An optical element includes a light-transmitting structure and a first reflection-prevention layer. The light-transmitting structure has a first surface and a second surface facing the first surface. The first reflection-prevention layer includes a plurality of first light-refractive index buffering particles deposited on the first surface such as the concentration of the particles decreases as the distance from the first surface increases. The first reflection-prevention layer decreases the variation of a light-refractive index from the light-transmitting structure to an air layer to decrease the light reflectance of the first surface. Therefore, the light transmittance of the light-transmitting structure is increased due to the reflection-prevention layer formed on a surface of the light-transmitting structure, so that luminance may be enhanced. Moreover, the reflection-prevention layer may enhance the resistance of the light-transmitting structure to external impacts. | 11-19-2009 |
20100020108 | METHOD AND APPARATUS FOR DRIVING A BACKLIGHT ASSEMBLY - Provided are a backlight assembly, a display apparatus comprising the same, and a driving method of the liquid crystal display. The backlight assembly includes a pulse width modulation signal output unit receiving a dimming signal and outputting a pulse width modulation signal having a duty ratio corresponding to the dimming signal and having various periods, and a light source emitting light based on the pulse width modulation signal. | 01-28-2010 |
20100039368 | METHOD OF LOCAL DIMMING OF DISPLAY LIGHT SOURCE AND APPARATUS PERFORMING SAME - In a machine-implemented method of local dimming a light source of a light source block for driving the light source block to provide a plurality of image regions with light, duty ratios of a first light source and a second light source adjacent to the first light source are initially determined by using a first target luminance value of a first image region closest to the first light source and a second target luminance value of a second image region closest to the second light source. The initially determined duty ratios are compensated by using a target luminance value of a remaining image region excluding the first and second image regions among the image regions receiving the light generated from the first and second first light sources. The first and second first light sources are driven by using the compensated duty ratios. | 02-18-2010 |
20100053938 | BACKLIGHT ASSEMBLY AND A DISPLAY DEVICE HAVING THE SAME - A backlight assembly comprising: a plurality of fluorescent lamps each including a lamp tube having a fluorescent layer, a discharge gas contained in the lamp tube, a first electrode disposed in the lamp tube, and a conductive terminal capacitively coupled to the first electrode; and a lamp socket which secures the plurality of fluorescent lamps. | 03-04-2010 |
20100090941 | LIQUID CRYSTAL DISPLAY - A liquid crystal display (LCD) may include in accordance with one or more embodiments an LCD panel on which an image is displayed and a fluorescent lamp providing light to the LCD panel. A tube current having a duty ratio may be applied to the fluorescent lamp. The duty ratio of the tube current may increase gradually from an initial duty ratio to a final duty ratio during a transition interval. | 04-15-2010 |
20100110111 | LIGHT SOURCE DEVICE, METHOD FOR DRIVING THE SAME AND DISPLAY DEVICE HAVING THE SAME - A light source device includes; a light source module including a plurality of light-emitting blocks, a local dimming driving part, which drives the plurality of light-emitting blocks on the basis of a dimming level of a over light-emitting block, by controlling a dimming level of the over light-emitting block and dimming levels of peripheral light-emitting blocks disposed adjacent to the over light-emitting block to drive the plurality of light-emitting blocks. | 05-06-2010 |
20100117947 | Light Source Module and Display Apparatus Having the Same - A light source module includes first and second light sources. The first light source includes a blue light-emitting body emitting blue light and a red fluorescent material disposed around the blue light-emitting body emitting red light by virtue of being excited by the blue light. The second light source is disposed adjacent to the first light source, and includes a green light-emitting body emitting green light. The blue and green light-emitting materials may include a light-emitting diode (LED) chip including substantially the same material. Accordingly, since a variation of light efficiency of the light source module with respect to temperature is small, a color feedback system may be omitted, and color reproducibility may be high. | 05-13-2010 |
20100195316 | Optical Lens, Optical Package Having the Same, Backlight Assembly Having the Same and Display Device Having the Same - An optical lens refracts and reflects a light to increase a luminance in a top direction of the optical lens and to decrease a luminance in a horizontal direction of the optical lens. The optical lens includes a central portion and a peripheral portion. The central portion has a convex shape. The peripheral portion has a concave shape. The peripheral portion surrounds the central portion. Therefore, power consumption and manufacturing cost are decreased. | 08-05-2010 |
20110163343 | TWO DIMENSIONAL LIGHT SOURCE USING LIGHT EMITTING DIODE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE TWO DIMENSIONAL LIGHT SOURCE - A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to the wires through the holes, a buffer layer covering the LED chip, and an optical layer that is disposed on the buffer layer and has an optical pattern formed at a portion of the optical layer corresponding to the LED chip. | 07-07-2011 |
20120175651 | LIGHT EMITTNG MODULE, METHOD OF MANUFACTURING THE SAME AND DISPLAY APPARATUS HAVING THE SAME - A light emitting module includes a light emitting package and a lead frame. The light emitting package includes a light emitting chip emitting light, a first lead electrically connected to the light emitting chip, and a second lead spaced apart from the first lead and electrically connected to the light emitting chip. The light emitting package is mounted on the lead frame. The lead frame includes a third lead electrically connected to the first lead, a fourth lead electrically connected to the second lead and a molding part including the third lead and the fourth lead therein. | 07-12-2012 |
20120223636 | SILICATE PHOSPHOR, METHOD OF MANUFACTURING SILICATE PHOSPHOR, AND LIGHT-GENERATING DEVICE HAVING SILICATE PHOSPHOR - A silicate phosphor composition is provided having a γ-phase of an orthorhombic crystal structure whose space group is Pbnm 62, and whose composition is represented by the following chemical formula: | 09-06-2012 |
20130026948 | LIGHT SOURCE MODULE AND DISPLAY APPARATUS HAVING THE SAME - A light source module includes first and second light sources. The first light source includes a blue light-emitting body emitting blue light and a red fluorescent material disposed around the blue light-emitting body emitting red light by virtue of being excited by the blue light. The second light source is disposed adjacent to the first light source, and includes a green light-emitting body emitting green light. The blue and green light-emitting materials may include a light-emitting diode (LED) chip including substantially the same material. Accordingly, since a variation of light efficiency of the light source module with respect to temperature is small, a color feedback system may be omitted, and color reproducibility may be high. | 01-31-2013 |
20130077348 | LIGHT MODULE AND BACKLIGHT ASSEMBLY INCLUDING THE SAME - A light module for a backlight assembly that prevents metal wiring from being damaged at a bent portion and a backlight assembly including the same are presented. The light module for the backlight assembly includes: a printed circuit board (PCB) including a first portion and a second portion connected by a connection having a bend; a first light source formed on the first portion of the printed circuit board (PCB); a second light source formed on the second portion of the printed circuit board (PCB); a first wiring connecting member connected to the first light source and formed on the first portion; and a second wiring connecting member connected to the second light source and formed on the second portion, wherein the first wiring connecting member and the second wiring connecting member are connected to each other. | 03-28-2013 |
20130147364 | BACKLIGHT UNIT - A back light unit includes a first light source which generates first light in a first wavelength range, a second light source which generates second light in a second wavelength range, and a first wavelength compensating part which adjusts a wavelength of the first light controlling a driving current, which is applied to the first light source. | 06-13-2013 |
20140016351 | LIGHT SOURCE MODULE AND LIGHT SOURCE ASSEMBLY HAVING THE SAME - A light source module includes a light source unit which generates a light; a light emitting part spaced apart from the light source unit and comprising a light emitting surface; and a light transmitting part which transmits the light generated by the light source unit to the light emitting part. The light emitting part emits the light transmitted by the light transmitting part, through the light emitting surface. | 01-16-2014 |
20140036540 | LIGHT SOURCE MODULE AND BACKLIGHT ASSEMBLY HAVING THE SAME - In a light source module and a backlight assembly having the light source module, the light source module includes a flexible printed circuit board; a light source part on an upper surface of the flexible printed circuit board and including a light emitting chip; a substrate on a lower surface of the flexible printed circuit board; and a heat dissipating part which extends from the light emitting chip and contacts the substrate. | 02-06-2014 |
20140185316 | Display Device and Method of Manufacturing the Same - A display device according to an embodiment of the invention includes a display member configured to display images, a light source member configured to generate light, and a light guiding member disposed between the light source member and the display member. The light guiding member is configured to guide the light to the display member. The display member, the light source member, and the light guiding member are integrated as a single unit. The light source member generates blue light. The light guiding member includes a light guide layer and a fluorescent layer disposed on a top surface or a bottom surface of the light guide layer. The fluorescent layer is configured to convert the blue light into white light. | 07-03-2014 |
20150023053 | BACKLIGHT UNIT INCLUDING COLOR-COMPENSATING DIFFUSER AND DISPLAY DEVICE INCLUDING THE SAME - A backlight unit includes a light source. A light guide plate receives light supplied from the light source at an incident light part of the light guide plate. A reflective sheet is positioned below the light guide plate and reflects light upwardly. A diffuser sheet is formed on the light guide plate and diffuses the light to transfer the diffused light upwardly. The diffuser sheet includes a color material, and a concentration of the color material within the diffuser sheet is dependent upon a distance from the incident light part. | 01-22-2015 |
20150027761 | PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME - A printed circuit board includes a first seed layer, a second seed layer, and a metal layer. The first and second seed layers are disposed on a base substrate and spaced apart from each other. The metal layer covers the first and second seed layers except a first side of the first seed layer and a second side of the second seed layer. The first side of the first seed layer faces the second side of the second seed layer. | 01-29-2015 |
20150036384 | LIGHT EMITTING MODULE AND BACKLIGHT ASSEMBLY HAVING THE SAME - A light emitting module includes a first and second light source spaced apart from each other and each configured to generate and emit light; the first light source; and a metal board which is electrically connected to the first and second light sources. The metal board includes a body portion upon which the first and second light sources are disposed; first and second side portions respectively on first and second ends of the body portion; a first insulation layer which is between the body portion and the first side portion and insulates the body portion from the first side portion; and a second insulation layer which is between the body portion and the second side portion and insulates the body portion from the second side portion. | 02-05-2015 |
20150049465 | BACKLIGHT UNIT, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME - Disclosed are a backlight unit and a display device including the same. The backlight unit includes: an upper substrate; and a plurality of light source units disposed under the upper substrate, in which the light source unit includes an upper electrode, a lower electrode, and an inorganic emission layer disposed between the upper electrode and the lower electrode, and in the adjacent light source units among the plurality of light source units, at least one of the upper electrodes and the lower electrodes are electrically separated from each other. | 02-19-2015 |
20150062872 | LENS MODULE, LIGHT SOURCE ASSEMBLY AND BACKLIGHT ASSEMBLY HAVING THE LENS MODULE - Provided are a light source assembly and a backlight assembly including a lens module. The light source assembly includes: a light source module capable of emitting light and a lens module positioned on the light source module. The lens module includes a light collecting lens collecting the light emitted from the light source module, and a diffusion lens positioned on the light collecting lens, and including an inner curved surface in which light from the light collecting lens is incident and an outer curved surface where the light incident on the inner curved surface exits the diffusion lens, and the light emitted from the light source module forms a light collecting region on the inner curved surface by passing through the light collecting lens. | 03-05-2015 |