Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present invention provides a light guide plate and a manufacturing method thereof. The manufacturing method of the light guide plate mainly first forms a light guide plate body, and then forms a plurality of light-guide scattering portions in an interior of the light guide plate body, and the light-guide scattering portions are arranged according to a specified manner. The light-guide scattering portions can reduce chromatic aberration of the light guide plate, prevent dot mura and increase light emitting efficiency.

Abstract: 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.

Abstract: 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.

Abstract: Disclosed are a static-free light guide plate and a backlight module. The static-free light guide plate comprises an incident plane, a bottom reflection plane, a side reflection plane and an out light plane. At least one layer of optical thin film material for increasing out light effect is positioned on the surface of the out light plane. The bottom reflection plane is positioned on the metal back plate. The static-free light guide plate further comprises interconnected conductive bands positioned at the side plane of the optical thin film material, non-incident portion of the incident plane, the bottom surface of the bottom reflection plane and the side reflection plane. With the conductive bands positioned at the side surface of the optical thin film material and connected to the metal back plate, the electrostatic generated on the light guide plate is transferred to achieve the purpose of protecting the electronic device, such as LEDs.

Abstract: The present invention proposes a backlight module which includes a back frame and at least one light bar. The back frame is coated with a specific thermal conducting material. The thermal conducting material may form various shapes on the back frame according to locations where the at least one light bar is disposed. Thermal energy produced by the at least one light bar is escaped via the thermal conducting material with various shapes, so that temperature can be uniform across the back frame.

Abstract: A backlight module is disclosed in the present invention. The backlight module comprises a light guide plate and a light source. The light guide plate comprises a light incident surface, and the light source is disposed adjacent to the light incident surface. The backlight module further comprises a protruding part, which abuts against the light incident surface to define a distance between the light source and the light incident surface. The present invention further discloses a liquid crystal display (LCD) device, which is provided with the aforesaid backlight module. Because the backlight module of the present invention is provided with a protruding part that effectively defines a distance between the light source and the light incident surface of the light guide plate, the light coupling efficiency of the backlight module is remarkably optimized.

Abstract: The present invention provides a light guide plate and a backlight module, wherein the light guide plate comprises a bottom surface, a light incident surface and a light-emitting surface. The light-emitting surface and the bottom surface are positioned oppositely. The bottom surface comprises a plurality of screen dots. The screen dots comprise fluorescent powder and are selectively added with diffusion particles. The present invention prevents the phenomenon of color shift and the luminous efficiency degradation due to the fluorescent powder accelerated ageing because of closing to the LED chip.