Patent application number | Description | Published |
20120314447 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE - A backlight module and a liquid crystal display device are provided. The backlight module at least comprises a light source assembly and a light guide plate. The light source assembly provides multiple groups of parallel incident beams having different intensity. A light incidence surface is used to receive the parallel incident beams and then refract them to be multiple groups of parallel refracted beams. The parallel refracted beams can directly arrive at a bottom surface, and be emitted out from a light-emitting surface after reflected and dispersed by the bottom surface. There forms an included angle between a normal of the light incidence surface and the parallel incident beams, and the included angle is an acute angle. The backlight module and the liquid crystal display device of the present invention can reduce the reflection times of light in the light guide plate for improving the light use efficiency. | 12-13-2012 |
20120320628 | SIDE-LIGHT TYPE LIGHT GUIDE PLATE ASSEMBLY AND BACKLIGHT MODULE - The present invention discloses a side-light type light guide plate assembly and a backlight module, which has a light guide plate and at least one reflector sheet. The light guide plate has a lower surface, a light output surface opposite to the lower surface, and at least one light input side surface connected between the lower surface and the light output surface. The reflector sheet is correspondingly disposed on at least one side surface of the light guide plate except for the light input side surface, while a medium layer is defined between the reflector sheet and the light guide plate. The refraction index of the medium layer is smaller than or equal to 1.12. By providing the air layer and the reflector sheet, light beam emitting out of a side of the light guide plate and going back to the light guide plate can meet conditions of total reflection, so as to prevent from generating a light leakage phenomenon at edges of the light guide plate. | 12-20-2012 |
20130182198 | Backlight display Module and Liquid Crystal Display Device - The present invention provides a backlight display module. The backlight display module has a light source used to emit lights; a light guide plate used to receive the lights and distribute the lights out of a light-emitting surface; a liquid crystal panel disposed on a top of the light-emitting surface of the light guide plate and used to display images; and a metal frame disposed at a periphery of the backlight display module and used to fix the liquid crystal panel to a corresponding position to the light guide plate. The backlight display module further has a light absorption layer mounted between the liquid crystal panel and the metal frame. The present invention further relates to a liquid crystal display device. The backlight display module and the liquid crystal display device of the present invention use the light absorption layer to prevent high-brightness light spots from forming at the periphery of the liquid crystal panel. | 07-18-2013 |
20130208214 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE - The present invention relates to a backlight module and a liquid crystal display (LCD) device, and the backlight module comprises a light guide plate, a base, a light source and a specular reflection plate. An included angle is provided between a light output surface of the light source and a light input surface of the light guide plate, and the included angle is smaller than 90 degree. The backlight module and the LCD device according to the present invention can increase the light coupling efficiency of the backlight module by changing the shape of the light output surface of the light source, so as to solve the technology problem that the light coupling efficiency of the traditional backlight module and the LCD device is relatively low. | 08-15-2013 |
20130242538 | LED LIGHT BAR AND BACKLIGHT MODULE - The present invention relates to a LED light bar and a backlight module, which comprise at least one LED and a printed circuit board. The printed circuit board has an anode weld and a cathode weld disposed thereon. The anode weld has an insulating material disposed thereon. In conventional skills, electrostatic charges are likely to accumulate on the cathode weld, and thus the LED may be damaged by the electrostatic charges. In the present invention, the cathode weld has a high-reflective insulating material disposed thereon, and thereby it can efficiently prevent from being damaged by the electrostatic charges and low manufacture cost is achieved. | 09-19-2013 |
20130256705 | LIGHT EMITTING DIODE LIGHT BAR STRUCTURE - The present invention discloses a light emitting diode (LED) light bar structure, which is applied to a backlight module of edge lighting. The LED light bar structure comprises a circuit board, a first row light source and a second row light source. The first row light source comprises a plurality of first LEDs; the second row light source comprises a plurality of second LEDs; and the first LEDs of the first row light source alternately continue with the second LEDs of the second row light source along the longitude direction of the circuit board to keep the lights entering into the light guide plate continuously, so as to prevent the light guide plate from light shadow “Mura” phenomenon in the light guide plate near the LEDs, and it can suit the design trend of narrow frame of liquid crystal panel. | 10-03-2013 |
20130257704 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY APPARATUS - The present invention provides a backlight module and a liquid crystal display apparatus. The backlight module comprises a light guide plate, an elongated base and elongated light sources. There is a predetermined angle between a longitudinal direction of each of the elongated light sources and a longitudinal direction of the elongated base, and projections of the elongated light sources in the longitudinal direction of the elongated base are connected or overlapped with each other. In the backlight module and the liquid crystal display apparatus of the present invention, the hot spot phenomena can be mitigated by altering the arrangement of the elongated light sources. | 10-03-2013 |
20130258243 | Backlight Module and LCD Device Comprising Backlight Module - The invention relates to the field of LCDs, and more particularly to a backlight module and an LCD device comprising the backlight module. The backlight module includes a middle frame, a light guide panel, and a light source; the backlight module further includes a shielding structure which is used for preventing the light of the light source from being directly emitted from the gap between the middle frame and the light guide panel; the shielding structure includes a groove arranged in the middle frame, and a convex lug arranged on the light guide panel; the convex lug is arranged in the groove. Because of the existence of the shielding structure, the light cannot be directly emitted onto the optical film from the gap between the middle frame and the light guide panel; thus, the problem of light leakage is solved; therefore, the bright line and facula cannot be generated on the LCD panel, thereby improving the quality of the LCD device. | 10-03-2013 |
20130258708 | Backlight Module - The present invention provides a backlight module including a backplane, a backlight source arranged inside the backplane, and a prism mounted to the backplane and located above the backlight source, and a light guide plate arranged in the backplane. The light guide plate has a light incident surface. The backlight source is located beside the light incident surface of the light guide plate. The backlight source has a light emitting surface, whereby light emitting from the light emitting surface is refracted by the prism to transmit through the light incident surface into the light guide plate in order to have a majority of the light emitting from the backlight source deflected to directly enter the light guide plate, thereby reducing loss of optic energy and improving light coupling efficiency. | 10-03-2013 |
20130258710 | Slim Frame Backlight Module - The present invention provides a slim frame backlight module, which includes a backplane, a backlight source arranged inside the backplane, a side reflector plate arranged inside the backplane, and a light guide plate arranged inside the backplane. The light guide plate includes a bottom surface, a top surface opposite to the bottom surface, and at least one light incident surface connecting between the bottom surface and the top surface. The light incident surface is set inwardly inclined with respect to the top surface, so that the light incident surface and the top surface form therebetween an included angle less than 90°. Light emitting from the backlight source can be reflected by the side reflector plate to the light incident surface or is directly projected to the light incident surface to transmit through the light incident surface into the light guide plate. | 10-03-2013 |
20130258714 | LIGHT EMITTING DIODE LIGHT BAR STRUCTURE AND BACKLIGHT MODULE - The present invention discloses a light emitting diode (LED) light bar structure and a backlight module. The LED light bar structure is provided with a plurality of the light source sets. Each of the light source sets comprises a first LED and a second LED, and the chromaticity of the first LED and the chromaticity of the second LED are complementary. Hence, it is not necessary to consider with the others of the light source sets, so that it can achieve mixing a uniform white light, and the backlight module will not appear the phenomenon of “Mura”. Besides, the material of the LED will not be wasted, and it is easy to control the identical chromaticity between the different backlight modules. | 10-03-2013 |
20130264594 | LED LIGHT SOURCE AND CORRESPONDING BACKLIGHT MODULE - The present invention relates to an LED light source and a corresponding backlight module. The LED light source includes a bar-shaped base and multiple LED assemblies. The LED assemblies each has an LED leadframe, a light-emitting chip, an anode bonding pad and a cathode bonding pad. The anode and cathode bonding pads are connected to the light-emitting chip and mounted on a bottom of the LED leadframe. By mounting the electrodes of the LED assembly on the bottom of the LED leadframe, the LED light source and the corresponding backlight module of the present invention prevents a technical problem that the electrodes of LED assemblies are easy to become short-circuited. | 10-10-2013 |
20130265803 | Light Guide Plate and Backlight Module - Disclosed are a light guide plate and backlight module. The light guide plate comprises a bottom surface and a top surface opposite to the bottom surface. A plurality of micro-structure units are set up adjacently at the top surface or/and bottom surface of lateral side of the light guide plate. Each micro-structure unit comprises a plurality of branches of micro-structures, and a plurality of micro-structures in each micro-structure unit extend diffusely at the top surface or/and bottom surface of the light guide plate. It is capable of mixing light sufficiently in a shorter distance via the establishment of the light guide plate to attribute the light intensity of the side-light type backlight module even to avoid shadow without raising a frame thickness. | 10-10-2013 |
20130271956 | Direct Backlight Module - The present invention provides a direct backlight module including a backplane, backlight sources arranged inside the backplane, and a diffusion plate mounted to the backplane and located above the backlight sources. The backplane includes a bottom plate, side plates connected to the bottom plate, and mount units formed on the bottom plate and each having first and second slope surfaces that are inclined in opposite directions. The backlight sources are respectively mounted to the first and second slope surfaces, whereby the backlight sources are set inclined with respect to the diffusion plate in order to increase the distance available for light mixing, improve intensity and homogeneity of illumination, and at the same time reduce the quantity of LED lamps used to reduce the manufacture cost and facilitate size thinning of the backlight module. | 10-17-2013 |
20130286324 | Backlight Module and Liquid Crystal Display Module - The present invention discloses a backlight module configured with a light source, a waveguide, a reflector and an optical film. The waveguide includes a light inlet surface facing the light source, and a light emitting surface which is adjacent to the light inlet surface, and a bottom surface opposite to the light emitting surface. The reflector is disposed under the bottom surface of the waveguide. An optical film is disposed above the light emitting surface of the waveguide. Wherein the reflector is coated with a gradation color layer composed by yellow graduating to blue so as to ensure the projected light from the light source is homogeneous with reduced chromatic aberration. | 10-31-2013 |
20130286327 | Backlight Module and Liquid Crystal Display Module - The present invention provides a backlight module configured with a waveguide including an incident surface, and a refractive surface adjacent to the incident surface, and a bottom surface opposite to the refractive surface. A light source is included to provide projected light beam into the incident surface of the waveguide through a deflector. A backframe is disposed on below the bottom surface of the waveguide. And Wherein the deflector is formed by an extension of the backframe extending from an edge of the backframe adjacent to the incident surface, the extension further extending along the incident surface. By the configuration provided, material cost can be lowered, while optical performance of the parts can be stabilized. Coupling between the light source and the waveguide is enhanced. | 10-31-2013 |
20130294052 | Backlight Module for Liquid Crystal Display and Liquid Crystal Display - The utility model discloses a backlight module for a liquid crystal display device and a liquid crystal display device. The backlight module comprises an LED and a backplane, wherein the backlight module also comprises a heatsink plate arranged on the outer of the backplane; and the LED is linked with the heatsink plate in the mode of heat conduction. The utility model, by arranging the LED on an extra heatsink plate which is arranged on the outer of the backplane, dissipates outward the heat emitted by the LED through the heatsink plate, lowers the temperature of the backlight cavity, and protects the optical components. At the same time, because the backplane is not directly used to dissipate heat, the gradient of temperature distribution on the backplane is reduced, thus, the gradient of temperature distribution in the backlight cavity is reduced and stress of the backlight cavity induced by the temperature gradient is also reduced. | 11-07-2013 |
20130301296 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A liquid crystal display device has a liquid crystal panel and a backlight unit, wherein the backlight unit comprises: a light guide plate, having a bottom surface, a light exiting surface opposite to the bottom surface, at least one lateral light incident surface and at least a lateral side, wherein the lateral side includes a retaining surface; a frame body for receiving the light guide plate, having a stopping part disposed at a position corresponding to the retaining surface, wherein the stopping part is closely engaged with the retaining surface of the light guide plate for fixing the light guide plate; and a light source disposed in the frame body, emitting light toward to the lateral light incident surface. | 11-14-2013 |
20130329456 | Side-Edge Backlight Module - The present invention provides a side-edge backlight module, which includes a backplane, a light guide plate arranged inside the backplane, a backlight source arranged inside the backplane, and a photo coupler arranged between the light guide plate and the backlight source, whereby light emitting from the backlight source is subjected to light mixing by the photo coupler and then enters the light guide plate so as to improve homogeneity of light illumination of the light guide plate at a location close to a backlight source. The side-edge backlight module arranges a photo coupler between a light incidence surface of a light guide plate and LED lights of a backlight source in order to make lights emitting from the backlight source incident to the light guide plate in a uniform manner thereby providing the light guide plate with homogeneous light illumination. | 12-12-2013 |
20130336000 | LED LIGHT BAR AND SIDE-EDGE BACKLIGHT MODULE USING SAME - An LED light bar includes a PCB and a plurality of LED lamps mounted to and electrically connected with the PCB. Each of the LED lamps has a light emission face that is perpendicular to the PCB. The LED lamps at two opposite ends are arranged to have the light emission faces thereof angularly shifted in directions away from the light emission faces of the LED lamps in the middle to thereby increase light irradiation range of the LED light bar. With the LED lamps at two ends of the LED light bar being arranged to have light emission faces thereof angularly shifted so as to form a predetermined included angle between the light emission faces of the LED lamps and a light incidence face of the light guide plate, the irradiation range of light from the LED light bar is increased. | 12-19-2013 |
20130343087 | SIDE-EDGE BACKLIGHT MODULE - The present invention provides a side-edge backlight module including a light guide plate having first and second mounting sides opposite to each other. The first mounting side forms a first positioning hole, a first positioning slot, and a second positioning slot. The second mounting side forms correspondingly a second positioning hole, a third positioning slot, and a fourth positioning slot. A backplane includes six rivet pins respectively received in the first and second positioning holes and the first, second, third, and fourth positioning slots. The first and second positioning slots and the third and fourth positioning slots are of a right-angled trapezoidal shape having a straight side that is open and an inclined side that is inclined downward in a direction toward the first or second positioning hole. The rivet pins received in the first, second, third, and fourth positioning slots respectively abut against the inclined sides of the trapezoids. | 12-26-2013 |
20140029294 | BACKLIGHT MODULE - The present invention provides a backlight module, which includes a backplane, a backlight source arranged inside the backplane, a light guide plate arranged inside the backplane to correspond to the backlight source, a reflector plate arranged between the light guide plate and the backplane, an optic film disposed on the light guide plate, a mold frame arranged on the backplane, and a block wall arranged between the light guide plate and the mold frame and opposing the backlight module. The block wall forms a slope face close to the backlight source. A reflective layer is formed on the slope face. Being provided between the mold frame and the light guide plate, the block wall reflects light that gets incident thereon back into the light guide plate in order to eliminate leak through a gap between an optic film assembly and the light guide plate. | 01-30-2014 |
20150022756 | BACKLIGHT MODULE AND CORRESPONDING LIQUID CRYSTAL DISPLAY DEVICE - The present invention relates to a backlight module and a corresponding liquid crystal display panel. The backlight module includes a backboard having multiple concave portions formed on an inner surface of the backboard and multiple light sources mounted in the concave portions. The backlight module and the corresponding liquid crystal display device of the present invention can reduce the thickness of direct-type backlight module without affecting the optical quality of the lights emitted from the backlight module and increasing the manufacturing cost of the backlight module. | 01-22-2015 |
20150023003 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY - A backlight module and a liquid crystal display are provided. The backlight module includes a first light-emitting unit and at least one second light-emitting unit. The first light-emitting unit is located outside of a light guide region between an optical film and a reflection plate, and the at least one second light-emitting unit is located within the light guide region. The at least one second light-emitting unit includes a curved reflection sheet. The curved reflection sheet faces the first light-emitting unit, and is used to reflect the lights being projected to the at least one second light-emitting unit unto the optical film. | 01-22-2015 |
20150029440 | BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY - This invention relates to a backlight module and a liquid crystal display where the backlight module comprises a light guide plate, a substrate, a light source, a reflective element and a reflective sheet. The light guide plate and the reflective sheet are joined by a double coated film that is set up along the edge of a lower surface of the light guide plate. A light exit plane of the light source is placed in between the lower surface of the light guide plate and a light exit plane of the light guide plate. By means of altering the setup of the light guide plate and the reflective sheet, this invention settles the technical issue of mura appeared at the corresponding display panel. | 01-29-2015 |