Abstract: A projective display is signally connected with an electronic device capable of exporting an image, so as to allow a user to optionally view the image exported by the electronic device, wherein the projective display comprises: a transparent liquid crystal display assembly, which is signally connected with the electronic device; a light-emitting device, which emits a light to the liquid crystal display assembly; and a backlight module, which is aligned to a rear side of the liquid crystal display assembly for providing a surface light source to the liquid crystal display assembly so that the liquid crystal display assembly can function as an ordinary display, wherein, when the light-emitting device emits the light to the liquid crystal display assembly, and the backlight module is displaced from or not aligned to the rear side of the liquid crystal display assembly, the light emitted by the light-emitting device can pierce through the liquid crystal display assembly and make an image presented on the liqui

Abstract: The liquid crystal display apparatus includes a liquid crystal panel and the back light device for emitting the light from a light source to the liquid crystal panel through a lens. The light source includes a first LED for emitting the light of a first color, a second LED for emitting the light of a second color, a third LED for emitting the light of a third color, a fourth LED for emitting the light of the third color, a fifth LED for emitting the light of the second color, and a sixth LED for emitting the light of the first color. The first, second, third, fourth, fifth and sixth LEDs are arranged on the wiring board in such a manner as to offset the deviation of the light distribution.

Abstract: A white phosphor including: 40 to 50 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and a combination thereof; 20 to 30 parts by weight of a green phosphor (Sr1-xCax)Ga2S4:Eu (0?x<0.2); and 20 to 30 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and combinations thereof. The white phosphor can be included in a light emission device. The light emission device can be included in a liquid crystal display.

Abstract: An optical structure placeable between a backlight array of point light sources and a planar display. The structure distributes light emitted by the point light sources to uniformly illuminate the plane of the display, without introducing significant viewing parallax. The emitted light is partially collimated within a preferred angular viewing range, maximizing the display's luminance when viewed from the normal direction. The structure is highly reflective, such that a substantial portion of any non-emitted light rays are internally reflected by the structure, increasing the likelihood that those rays will be subsequently emitted by the structure.

Abstract: A backlight unit includes a cover bottom having a plurality of light source groups each with a plurality of light sources thereon, wherein the light sources with the higher brightness are arranged in the light source group closer to a center portion of the cover bottom, and the light sources with the lower brightness are arranged in the light source group closer to a periphery of the cover bottom.

Abstract: A backlight unit as embodied includes a plurality of unit groups, each unit group having a plurality of light emitting diodes (LEDs); and a light mixing layer formed over the unit groups, for mixing lights emitted from the LEDs to provide substantially white light.

Abstract: A liquid crystal display includes a liquid crystal panel displaying images, a light source supplying light to the liquid crystal panel, a circuit board including at least one of a brightness sensor and a temperature sensor, a frame including a plurality of sidewalls each including an inner surface, an outer surface and a top surface, the frame including a recess into which the circuit board is inserted downwardly, and the top surface including an open area through which the recess is accessible, and a blocking member covering the open area of the top surface where the frame recess is opened.

Abstract: An daylight-coupled display includes a plurality of passive backlights cascaded in a stack for backlighting of LCD panels or static display panels. The display includes a diffuser to transmit light to multiple cascaded curved reflectors, each of which reflects light for backlighting of the display. A polarization rotator is located within the backlight such that the reflectors provide the correct polarization of light to the LCD panel for backlighting of it. One daylight-coupled display can include an active light source to provide light to the reflectors A secondary light source can provide light to at least one of the reflectors to provide backlighting of the display in low lighting conditions.

Abstract: An optical compensation film to be used in a VA mode liquid crystal display device, having retardation in plane at a wavelength of 550 nm, Re(550), falling within the range from 20 to 100 nm, and retardation along thickness direction at a wavelength of 550 nm, Rth(550), falling within the range from 60 to 120 nm, is disclosed. And a VA-mode liquid crystal display device having the optical compensation film, disposed between the liquid crystal cell and each of the pair of polarizing elements, is disclosed.

Abstract: A liquid crystal display device capable of reducing a time delay in lighting of the liquid crystal display device includes a liquid crystal panel, at least one fluorescent lamps disposed below the liquid crystal panel, formed as a cylindrical shape having a central axis and supplying light to the liquid crystal panel, and at least one auxiliary optical source disposed to face the liquid crystal panel while having the central axis therebetween and supplying light to the fluorescent lamps.

Abstract: Disclosed herein is a liquid crystal display device that includes a normally-black liquid crystal panel whose transmittance takes a minimum value when no voltage is applied and a cold cathode fluorescent lamp used as a light source of a backlight of the liquid crystal panel, the liquid crystal display device including a light irradiator configured to carry out light irradiation of the cold cathode fluorescent lamp in a period from device activation to first lighting of the cold cathode fluorescent lamp.

Abstract: An object of the present invention is to provide a surface light source element configured to enhance projection light from an opening boundary of a supporting frame (12), wherein the projection light is required as a surface light source element, so that the surface light source element makes it possible to clearly illuminate an observation direction even in the case where the surface light source element is made large in size or thin in thickness.

Abstract: A backlight unit which prevents an initial driving malfunction is disclosed. The backlight unit includes: a bottom cover opened upwardly; a reflective sheet disposed in the inner surface of the bottom cover; a plurality of lamps arranged in a fixed interval on the reflective sheet; a driver disposed on the rear surface of the bottom cover; an auxiliary light source loaded on the driver; a first hole formed in a region of the bottom cover opposite to the auxiliary light source; and a hole region, on the reflective sheet, including one of plural micro-penetration holes and plural slit holes and opposite the first hole on the reflective sheet.

Abstract: A backlight module includes a light guide plate and a flexible illuminating bar. The light guide plate has a light emitting top surface and a plurality of light incident side surfaces. Each of the light incident side surfaces is connected to the light emitting top surface. The flexible illuminating bar includes a circuit board module and a plurality of point light sources. The circuit board module includes a plurality of circuit boards and at least one flexible electrical connection member. The circuit boards are disposed at the light incident side surfaces, respectively. The flexible electrical connection member electrically connects two of the circuit boards and is bendingly disposed between corresponding two of the circuit boards. The point light sources are electrically disposed on the circuit boards and suitable for emitting light towards the light incident side surfaces. In addition, another backlight module is also provided.

Abstract: A switchable viewing angle display method is provided, using arrayed microlenses and a waveguide pipe with selectable light extraction positions. The method provides a front panel array of display pixels. Also provided is an array of microlenses underlying the array of display pixels. Each microlens has a focal point and each microlens is associated with a corresponding block of display pixels. A backlight panel has an edge-coupled waveguide pipe with an optical input connected to a column of light emitting diodes (LEDs). The backlight panel includes an array extraction pixels, each extraction pixel underlying a corresponding microlens, and the backlight panel also includes a planar mirror underlying the waveguide pipe. In response to a display viewing angle change command, a waveguide pipe's light extraction position selected, which is the distance between the extraction pixels and their corresponding microlenses, and the display viewing angle is changed.

Abstract: A backlight assembly includes first and second backlight units independently operating based on driving modes, and a light blocking member interposed between the first and second backlight units. The first backlight assembly includes a first light source generating and supplying a first light to a main display part of a display panel in a main mode and turned-off in a sub mode. The second backlight assembly includes a second light source generating and supplying a second light having different color from the first light to a sub display part of the display panel in a main mode and a sub mode.

Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight device which supplies light to a back surface of the liquid crystal display panel. The backlight device includes a diffusion plate, a plurality of cold cathode fluorescent lamps, and a reflection plate on which light is reflected. Assuming arrangement intervals of the plurality of cold cathode fluorescent lamps in the direction from a center portion to a peripheral portion as “a”, “b”, “c”, “d”, “e”, and “f” respectively, the plurality of cold cathode fluorescent lamps is arranged to satisfy the relationship of a>b?c?d?e?f. Such a liquid crystal display device can control the brightness distribution due to the arrangement of the cold cathode fluorescent lamps within the backlight device thus obtaining a high-quality image display without generating brightness irregularities.

Abstract: Provided is a liquid crystal display (LCD) without a color filter, the LCD including: a liquid crystal panel comprising front and rear glass substrates and a plurality of red, green, and blue liquid crystal subpixels disposed between the front and rear glass substrates corresponding to red, green, and blue lights, respectively; a backlight unit disposed in rear of the liquid crystal panel and comprising a plurality of three-color light supply units supplying the red, green, and blue lights, respectively, and separated from one another so that the plurality of three-color light supply units are compartmentalized; and a lenticular lens array disposed between the liquid crystal panel and the backlight unit, inducing the red, green, and blue lights irradiated by the three-color light supply units into the red, green, and blue liquid crystal subpixels included in the liquid crystal panel and comprising a plurality of lenticular lens groups comprising a plurality of lenticular lenses, wherein the plurality of lenti

Abstract: An object is to provide a liquid crystal display device capable of image display according to an environment around the liquid crystal display device, e.g., in a bright environment or a dim environment. Another object is to provide a liquid crystal display device capable of displaying an image in both modes of a reflective mode in which external light is used as a light source and a transmissive mode in which a backlight is used. In order to achieve at least one of the above objects, a liquid crystal display device is provided with a region (a reflective region) where display is performed with reflection of incident light through a liquid crystal layer and a region (a transmissive region) where display is performed with transmission of light from a backlight and can switch the transmissive mode and the reflective mode.

Abstract: A liquid crystal module includes a rear frame, a light reflecting sheet, a plurality of U-shaped cold cathode tubes, an optical sheet and a liquid crystal panel. The light reflecting sheet is disposed on the rear frame. The U-shaped cold cathode tubes are disposed above the light reflecting sheet and arranged parallel to each other. Each of the U-shaped cold cathode tubes includes a U-shaped bent part and a pair of end portions extending from the U-shaped bent part. Widths of the U-shaped bent parts of the U-shaped cold cathode tubes are different from each other. Overall lengths of the U-shaped cold cathode tubes from one end portions to the other end portions along the U-shaped cold cathode tubes are equal to each other. The optical sheet is disposed above the U-shaped cold cathode tube. The liquid crystal panel is disposed above the optical sheet.

Abstract: A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate 130 is opposite the rear surface of liquid crystal panel 110. LEDs 140 are placed on the surface of substrate 130. LED drive circuits 150 supply LEDs 140 with a current that causes LEDs 140 to emit light that illuminates liquid crystal panel 110. LED drive circuits 150 supply a lower current to LEDs 140 placed in an area having a higher ambient temperature within the surface area of substrate 130.

Abstract: A lighting device for a display device includes a plurality of linear light sources 17 arranged parallel to one another, and a light reflecting plate 14 arranged on the side of the linear light sources 17 that corresponds to the opposite side of the light emitting side. Angled reflective portions 40 each having two inclined surfaces 41, 42 are provided on the light reflecting plate 14, so as to be each positioned between adjacent linear light sources 17. The inclination angle ?1 of the first inclined surface 41a of a first angled reflective portion 40a is set to be larger than the inclination angle ?2 of the first inclined surface 41b of a second angled reflective portion 40b that is positioned closer to the center of the array of the linear light sources 17 than the first angled reflective portion 40a.

Abstract: An object of the present invention is to provide a liquid crystal display device including a back light in which an electrode support member can be reliably arranged on the base side without concern for thermal expansion.

Abstract: A liquid crystal display (LCD) device including upper and lower substrates facing each other with a liquid crystal layer interposed therebetween, upper and lower polarization plates positioned on outer surfaces of the upper and lower substrates, respectively, and a beam steering film positioned on the upper polarization plate and including a plurality of curved-lenses formed on a surface of the beam steering film facing the upper polarization plate.

Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a first backlight source, a second backlight source and a liquid crystal panel. The first backlight source provides magenta backlight and the second backlight source provides green backlight. The first and second backlight sources are alternatively driven periodically to provide backlight for illustrating images. The liquid crystal panel comprises a liquid crystal layer and a color filter. The liquid crystal molecules of the liquid crystal layer are controlled for adjusting the transmittance of the backlight provided by the first and second backlight sources. The color filter includes red pixel areas, transparent pixel areas and blue pixel areas for performing color filtering operations on the backlight penetrating through the liquid crystal layer.

Abstract: A lighting device for a display device includes a display panel, a light source, and an optical member to be arranged between the light source and the display panel. The optical member has light reflectivity that is higher at an end of the plane of the optical member than at the center thereof.

Abstract: A light-emitting device including a light-spreading device having a wing-shaped protrusion part, a light-entering surface that includes an uneven surface, and a recess located away from the light-entering surface; an optoelectronic device disposed under the uneven surface and emitting light towards the light-entering surface; and a wavelength-converting material formed on a path along light traveling from the optoelectronic device. The device may additionally include a liquid crystal layer for controlling light flux from the light-spreading device; a color filter layer including a plurality of pixels provided adjacent to the liquid crystal layer. The device may be a liquid crystal display having a backlight module, a liquid crystal layer, and a color filter layer. An ultraviolet unit for emitting ultraviolet light may be disposed in the backlight module. At least one pixel may be filled with a wavelength-converting material that can convert ultraviolet light into green light.

Abstract: A direct light type backlight unit and a color filterless liquid crystal display (LCD) apparatus employing the same are provided. The direct light type backlight unit includes: a substrate; a plurality of light-emitting devices inclined with respect to the substrate; a diffraction grating which diffracts light emitted by the plurality of light-emitting devices at different angles according to wavelength and thereby separates the light into a plurality of color beams; and a plurality of reflectors, each reflector disposed at a side of one of the plurality of light-emitting devices, which reduces the range of angles of light incident on the diffraction grating.

Abstract: A liquid crystal display (LCD) system is provided. The LCD system includes a light source and a self-contained display unit including at least a LCD panel and a light guide plate coupled together, wherein the light guide plate is configured to guide light from the light source to the LCD panel as backlight and to structurally support the LCD panel. Further, a plurality of pre-made hollow spaces are contained in the display unit configured to host components of the LCD system. The LCD system also includes a controller contained in the plurality of pre-made hollow spaces and coupled to the LCD panel to control the LCD panel such that the light passing through the light guide plate is used as backlight for operation of the LCD panel.

Abstract: A liquid crystal display (LCD) system is provided. The LCD system includes a light-passable plate, an LCD panel and a controller. The light-passable plate is configured to allow natural light to pass through the light-passable plate; and the LCD panel is coupled to the light-passable plate and is configured to receive the natural light passing through the light-passable plate. Further, the controller is coupled to the LCD panel to control the LCD panel such that the natural light passing through the light-passable plate is used as backlight for operation of the LCD panel. The light-passable plate structurally supports the LCD panel in addition to providing the natural light to the LCD panel.

Abstract: 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.

Abstract: An illumination device for backlighting an image reproduction device containing light valves, the illumination device including a plurality of luminous spots arranged in grid format on a flat thermally conductive carrier. Each luminous spot having a plurality of light emitting diodes electrically insulated from one another, and a submount exhibiting good thermal conductivity and being connected to the carrier.

Abstract: Apparatus and methods for harnessing external light to illuminate a display screen of an electronic device are provided. The display screen may be illuminated using a light harness, a reflector, a translucent surface, or any combination thereof. The light harness may be cylindrical or hexahedral. The light harness may be coupled to an external light input or a collector. The reflector may be repositioned toward or away from the display screen to reflect external light toward the display screen. The translucent surface may allow external light to pass through it to illuminate the display screen. The translucent surface may protect the rear face of the display screen, or the rear face of the display screen may itself be translucent.

Abstract: A LED backlight assembly including a light emitting diode array having a plurality of red, green and blue light emitting diodes; a light guide plate at the side of the light emitting diode array; and a supporter supporting the light guide plate. The amount of red light produced by a red light emitting diode positioned at one end of the light emitting diode array and the amount of blue light produced by a blue light emitting diode positioned at another end of the light emitting diode array is less than that produced by the next light emitting diode of the same color, respectively.

Abstract: A two-sided illumination device including a printed wiring board, a first light source and first translucent member connected to a first side of the wiring board, and a second light source and second translucent member connected to a second side of the wiring board. The first translucent member is configured to transfer light from the first light source to a surface of the first translucent member, while the second translucent member is configured to transfer light from the second light source to a surface of the second translucent member. The illumination device is used for illuminating a user input region of an apparatus.

Abstract: A multi-view liquid crystal display for different users to watch different images from different viewing angles is provided. The multi-view liquid crystal display includes a liquid crystal display panel, a first backlight module and a second backlight module. The first backlight module is disposed below the liquid crystal display panel. The second backlight module is disposed between the first backlight module and the liquid crystal display panel. Furthermore, the first backlight module provides a first plane light source and the second backlight module provides a second plane light source. An included angle ? formed between transmitting directions of the first and the second plane light sources ranges from 6 degrees to 176 degrees. Therefore, when different users watch the multi-view liquid crystal display which displays different images from different viewing angles, the resolutions of the images are the same as the resolution of the multi-view liquid crystal display panel.

Abstract: A lighting device for a display device, according to the present invention, includes a plurality of tubular light sources 17 arranged parallel to one another, and a light reflecting plate 14 arranged on the side of the tubular light sources 17 that corresponds to the opposite side of the light emitting side. The tubular light sources 17 on an inner side of the array are arranged at narrower intervals, than those on an outer side of the array. A plurality of angled reflective portions 40 are provided on the light reflecting plate 14, so that each of the angled reflective portions is positioned between adjacent tubular light sources 17 and extends along the longitudinal direction of the tubular light sources 17. Each angled reflective portion 40 includes two inclined surfaces 41, 42, which face the adjacent tubular light sources 17, respectively.

Abstract: A display system includes a reflective display panel and a light source tailored to enhance the color gamut of the system. The panel, which may be a Cholesteric liquid crystal display panel, includes an array of reflective pixels, each pixel comprising a first, second, and third subpixel of different first, second, and third colors. The light source illuminates a front of the display panel with source light to enable observers to view images formed by the panel. The light source includes a lamp and an enhancing element. The lamp, which may be a metal halide lamp, emits lamp light that includes the first, second, and third colors. The enhancing element may be an optical filter, a supplemental LED light source or other light source, or both. The enhancing element enhances the system color gamut, for example, by increasing the color gamut area relative to illumination with the lamp alone.

Abstract: An optical structure placeable between a backlight array of point light sources and a planar display. The structure distributes light emitted by the point light sources to uniformly illuminate the plane of the display, without introducing significant viewing parallax. The emitted light is partially collimated within a preferred angular viewing range, maximizing the display's luminance when viewed from the normal direction. The structure is highly reflective, such that a substantial portion of any non-emitted light rays are internally reflected by the structure, increasing the likelihood that those rays will be subsequently emitted by the structure.

Abstract: A backlighting apparatus for a flat panel LCD display includes an elongate light guide having a front wall through which travels polarized light in a direction toward the LCD display. An RGB LED set is positioned adjacent a first end wall of the light guide so that light enters the light guide from the first end wall. A retardation and reflection film covers respective external surfaces of the bottom wall and a second end wall. Microlenses are formed in the front wall along its extent and each microlens is filled with a birefringent material. Light emitted by the LED set travels through a collimated light coupling module and exits the light guide through the birefringent microlenses in polarized form toward the LCD display. The viewing angles and angular light distributions of the LCD display in vertical and horizontal directions are optimized for enhancing the brightness without involving DBEF and BEF.

Abstract: Light-emitting elements are divided into chromaticity groups on the basis of their chromaticity. In a planar light source, light-emitting elements selected from two of the chromaticity groups are alternately provided in a longitudinal direction and in a transverse direction, respectively. The two chromaticity groups are substantially equally away from a target chromaticity in directions reverse to each other. Further, pairs of two of the light-emitting elements belonging to the two chromaticity groups which are separated from each other, are provided so that distances d2 at which two of the light-emitting elements in each of the pairs are provided are less than distances d1 at which the pairs are provided.

Abstract: A liquid crystal module includes a liquid crystal panel and a back light unit. The back light unit has a rear frame, a light guide plate and a lamp reflector assembly. The lamp reflector assembly including a light source, a lamp reflector and a lamp socket. The lamp reflector has a front plate, a rear plate and a side plate with a tab. At least one of the front plate and the rear plate has a fixing hole. The lamp socket has a fixing protrusion that is fitted into the fixing hole of the lamp reflector, and a slit that receives the tab of the lamp reflector.

Abstract: The present invention relates to a VA-mode liquid-crystal display device comprising a front-side polarizing element (14), a rear-side polarizing element (12), a VA-mode liquid-crystal cell (LC) disposed between the front-side polarizing element and the rear-side polarizing element, and a first retardation region (16) comprising one or more retardation layers between the rear-side polarizing element and the VA-mode liquid-crystal cell, wherein the first retardation region satisfies 0 nm?Re(590)?10 nm, and |Rth(590)|?25 nm. Re(?) means retardation (nm) in plane at a wavelength ? nm, and Rth(?) means retardation (nm) along the thickness direction at a wavelength ? nm.

Abstract: Disclosed is a backlight device for illuminating a transmissive color liquid crystal display panel from its backside with white light. The backlight device includes, as a light source, a plural number of principal light emitting diode units 21mn, and a plural number of subsidiary light emitting diode units 21mn, where m and n are natural numbers. Each principal light emitting diode unit is made up by a plural number of light emitting diodes (21) arrayed in a string and emits white light of preset chromaticity. Each subsidiary light emitting diode unit is made up by a plural number of light emitting diodes (21) arrayed in a string and emits white light of chromaticity in the vicinity of the preset chromaticity. The number of the subsidiary light emitting diode units is smaller than that of the principal light emitting diode units.

Abstract: An optical assembly includes a light diffusing layer attached to a reflective polarizing layer. An intermediate region between the light diffusing layer and the reflective polarizing layer includes an intermediate structure that defines voids between the light diffusing layer and the reflective polarizing layer.

Abstract: A multimode display for night vision imaging system (NVIS) compatible operation including a display assembly including a display subassembly having a display component; and, a backlight printed wiring board (PWB) assembly positioned behind the display subassembly. The backlight printed wiring board (PWB) assembly includes a printed wiring board (PWB). A top side mounted LED array is mounted on a first side of the printed wiring board (PWB) including a top side plurality of LEDs including a top side set of white LEDs. A reverse-mounted LED array is mounted on a second side of the printed wiring board (PWB) including a reverse-mounted plurality of LEDs including a reverse-mounted set of white LEDs. A dedicated primary IR filtering means is operatively associated with the reverse-mounted LED array for conditioning light emitted from the reverse-mounted LED array for NVIS compatible operation. In a day mode of operation the forward-side mounted LED array illuminates the display subassembly.

Abstract: A backlight device includes projections disposed on the back side of a light guide plate, and engagement holes engaging with the projections formed in a housing. The projections of the light guide plate are engaged with the engagement holes in the housing to prevent displacement of the light guide plate caused by vibration and impact. One surface of each projection is flush with a light incident surface, the area of that cross-section of each projection which is parallel or substantially parallel to the light incident surface is set such that it continuously decreases as the section is farther away from the light incident surface, and as a result, occurrence of a bright line and a dark line is prevented.

Abstract: Disclosed is a light guide plate, comprising a light guide plate body and a plurality of micro mirrors formed on an upper surface of the light guide plate body for controlling a reflection direction of light incident on the light guide plate. The amount of light output from a backlight module using the light guide plate can be controlled by adjusting an angle of each of the micro mirrors with respect to an incident light from a light source.

Abstract: A light emitting diode backlight (LED) unit includes: a substrate having a plurality of divided areas; a plurality of LEDs disposed on the substrate; and an LED driver supplying a drive power to the plurality of LEDs disposed in at least two of the plurality of divided areas, wherein at least a part of the plurality of LEDs disposed in one of the plurality of divided areas is electrically connected to each other.

Abstract: A light source unit which can minimize current differences between a plurality of light emitting diodes (“LEDs”) includes a printed circuit board (“PCB”) which includes an active region that emits light and an inactive region that accounts for a remainder of the PCB, an LED array which includes a plurality of LEDs that are arranged at regular intervals, and a current balancing circuit which is disposed in the inactive region, generates a plurality of current balancing voltages by uniformly adjusting current differences between the LEDs, and outputs the current balancing voltages. A liquid crystal display (“LCD”) including the light source unit, and a method of minimizing current differences between a plurality of LEDs are further provided.