Abstract: The present disclosure relates to a backlight module and a liquid crystal display device including the backlight module. The backlight module includes a light guide plate and a planar reflecting sheet arranged below the light guide plate, wherein a plurality of lattice points are provided on the upper surface of the light guide plate so that the upper surface forms a light-emitting surface, and a plurality of cylindrical projections in contact with the planar reflecting sheet are formed on the lower surface of the light guide plate. With this backlight module, the probability of the lattice points being scratched can be significantly reduced, and the quality of the final product can be improved.

Abstract: A backlight module including a light guide plate is disclosed. The light guide plate has a light emitting plane, a bottom plane opposite to the light emitting plane and a light incident plane connecting the light emitting plane and the bottom plane, a plurality of arc protrusions disposed on the first light incident plane; and a transparent layer disposed upon each of the arc-protrusions. In the backlight module, an LED bar is disposed near to the light incident plane of the light guide plate, and the LED bar has a plurality of LED light sources corresponding to the arc-protrusions of the light guide plate, respectively.

Abstract: A light guiding system includes an ambient light gathering system for absorbing the ambient light to generate absorbed light; multiple light guiding devices each of which includes a light input end near the ambient light gathering system and a light output end near an incident side of a light guiding plate, and multiple light diffusion devices between the light output end and the incident side of the light guiding plate, for broadening a light-emitting angle of the light output end. The absorbed light enters the light input end and is guided to the light output end to form a backlight source. The light guiding system utilizes a light diffusion device to broaden the light-emitting angle of the light output end such that the light uniformity of the light output end is improved and the optical quality of the edge-lighting backlight module is raised.

Abstract: A screening method of a phosphor-based optical film used in a backlight module and a backlight module are proposed. The screening method includes steps of: a) dividing an internal surface of the backlight module without a phosphor-based optical film into multiple measurement zones, and gaining a transmittance spectrum of each of the measurement zones; b) gaining a chromatic value of each of the measurement zones matching the phosphor-based optical film; c) checking the chromatic values gained in b) to be within a range of standard chroma; the process of screening being finished if all of the chromatic values are in the range; matching at least one measurement zone with a new phosphor-based optical film if the chromatic value of the at least one of the measurement zones is not within the range, and returning to b). The present backlight module has higher saturation and penetration and better color uniformity.

Abstract: A light guiding system, an edge-type backlight module and a liquid crystal display are disclosed. The light guiding system includes an ambient light collection system facing toward ambient light for absorbing the ambient light, a plurality of light guiding devices, and a fluorescent film arranged between the light emitting ends and the light incident surface. Each of the plurality of light guiding devices includes a light emitting end and a light incident end. The light emitting ends are arranged close to a light incident surface of a light guiding plate, and the light incident ends are arranged close to the ambient light collection system. The absorbed ambient light enters the light incident ends and propagates toward the light emitting ends. By adopting the fluorescent film, the light beams from the light emitting ends are diffused such that brightness difference on the light incident surface is enhanced.

Abstract: The present invention provides a light guide plate and a backlight module containing the light guide plate. The light guide plate includes a plate body and a coating layer formed on the plate body. The plate body includes a bottom face, a top face opposite to the bottom face, and a plurality of side faces between the bottom face and the top face. The coating layer is formed on at least one side edge of the top face. The coating layer has a refractive index that is greater than or equal to 1 and less than refractive index of the plate body. The light guide plate uses the coating layer formed on the top face to reflect light back into the light guide plate to confine the light within the light guide plate so as to prevent light leakage and ensure light intensity and homogeneity of the light guide plate.

Abstract: The present invention discloses a LED backlight module, which comprises a backplane; a side-type backlight source, which comprises a backlight source substrate and multiple light emitting diodes provided on the backlight light source substrate; a reflector, which is provided on the backplane; multiple light guides provided on the reflector in parallel, each light guide being provided with at least one light-incident surface and one light-emitting surface, the light-incident surface of the light guide being opposite to the LED; diffusers provided on the multiple light guides, which are opposite to the light-emitting surface of the light guide; and an optical film set, which is located above the diffuser. The embodiment of the present invention further discloses the corresponding liquid crystal display. According to the embodiment of the present invention, it can save the amount of LEDs, which is beneficial for the narrow frame of the liquid crystal display panel.

Abstract: A screening method of a phosphor-based optical film used in a backlight module and a backlight module are proposed. The screening method includes steps of: a) dividing an internal surface of the backlight module without a phosphor-based optical film into multiple measurement zones, and gaining a transmittance spectrum of each of the measurement zones; b) gaining a chromatic value of each of the measurement zones matching the phosphor-based optical film; c) checking the chromatic values gained in b) to be within a range of standard chroma; the process of screening being finished if all of the chromatic values are in the range; matching at least one measurement zone with a new phosphor-based optical film if the chromatic value of the at least one of the measurement zones is not within the range, and returning to b). The present backlight module has higher saturation and penetration and better color uniformity.

Abstract: The present invention discloses light-guiding plate, backlight module and liquid crystal display device. The light-guiding plate includes first incident surface, light-emitting surface, bottom surface and side surface; wherein light-emitting surface being connected to first incident surface, bottom surface being connected to first incident surface, light-emitting surface being connected to side surface, bottom surface being connected to side surface, the angle between first incident surface and side surface connected to first incident surface being obtuse, and light-emitting surface including a plurality of trenches radiating from first incident surface. The radiating trenches disposed on light-emitting surface have certain converging effect on light propagating in light-guiding plate. The propagating light will propagate along the trenches.

Abstract: A light guiding system includes an ambient light gathering system for absorbing the ambient light to generate absorbed light; multiple light guiding devices each of which includes a light input end near the ambient light gathering system and a light output end near an incident side of a light guiding plate, and multiple light diffusion devices between the light output end and the incident side of the light guiding plate, for broadening a light-emitting angle of the light output end. The absorbed light enters the light input end and is guided to the light output end to form a backlight source. The light guiding system utilizes a light diffusion device to broaden the light-emitting angle of the light output end such that the light uniformity of the light output end is improved and the optical quality of the edge-lighting backlight module is raised.

Abstract: A system and method for correcting image data. Embodiments of the present invention provide calibration and image correction to overcome various lens effects including lens shading and lens imperfections. In one embodiment, the correction of image data is performed via utilization of a spline surface (e.g., Bezier surface). The use of spline surfaces facilitates efficient hardware implementation. The image correction may be performed on a per channel and illumination type basis. In another embodiment, the present invention provides a method for determine a spline surface to be used for calibrating an image signal processor to be used in correcting image data.

Abstract: The present invention provides a backlight module and a display apparatus. The display apparatus comprises the backlight module and a display panel. The backlight module comprises a light collector, optical fibers, a fiber light-outputting substrate and a light guide plate. The optical fibers are connected between the light collector and the fiber light-outputting substrate. The light guide plate is disposed at one side of the fiber light-outputting substrate. The light guide plate includes light diffusion recessions, and the light diffusion recessions face the light-outputting openings of the fiber light-outputting substrate. The present invention can use ambient light rays to form a backlight source.

Abstract: The present invention provides a backlight module and a display apparatus. The display apparatus comprises the backlight module and a display panel. The backlight module comprises a light collector, optical fibers, a fiber light-outputting substrate, a light guide plate and a light coupling device. The optical fibers are connected between the light collector and the fiber light-outputting substrate. The light guide plate is disposed at one side of the fiber light-outputting substrate. The light coupling device is disposed between the fiber light-outputting substrate and the light guide plate, wherein light diffusion recessions of the light coupling device face the light-outputting openings of the fiber light-outputting substrate. The present invention can use ambient light rays to form a backlight source.

Abstract: The present invention provides a side-light backlight module with assisting solar light source and which comprises a side-light source; a waveguide having an incident surface facing the side-light source and an emitting surface; an optical film set arranged on top of the waveguide and facing the emitting surface; and an assisting light source directing collected solar light into the incident surface of the waveguide. With the provision of the assisting light source, the solar light can be used as an assisting light source making the backlight module and the liquid crystal display device made therefrom become more environmental friendly.

Abstract: The present invention provides a positioning device for light guide plate and the backlight module. The positioning device for light guide plate includes a backboard and a spring member which can be deformed when exerted with external force, and resumes to its original position when the external force is relieved. The spring member is arranged adjacent to the incident surface of the light guide plate, and includes a connector attached to the backboard, and a positioning hand having a fixing end and a free end. The fixing end is secured to the connector, and the free end abuts against to the sidewall of the light guide plate so as to hold up the light guide plate. The spring member is set to have a certain elastic modulus. When the light guide plate expands under heat or other reasons, the spring member will provide a buffer zone for the light guide plate and deform in accordance with the light guide plate which is therefore prevented from being warped.

Abstract: The present invention relates to an edge-lit backlight model, which comprises a back board, a heat sink arranged on the back board, and a light bar fixed on the heat sink, a light guiding plate is arranged above the back board, a plurality of back board clips are arranged on the back board and the heat sink is held under the back board clips; a elastic element is arranged between the back board and the heat sink and the elastic element applies horizontal elastic force to the heat sink towards the back board, so that the heat sink is immovable along its width direction. The edge-lit backlight model can prevent the light guiding plate from being bent and guarantee the efficiency of light coupling.

Abstract: The present invention provides a light-importing system, direct-lit backlight module and liquid crystal display device. The light-importing system includes ambient light collection system, facing and collecting ambient light, and outputting absorbed light; a plurality of light-guiding devices, each having light-entering end and light-exiting end, light-entering end adjacent to ambient light collection system, the absorbed light entering light-entering end and guided to light-exiting end, the plurality of the light-exiting ends being arranged in an array format underneath a light-entering surface of a diffuser; and a plurality of light diffusion devices, each disposed between light-exiting end and light-entering surface, expanding the light-emitting angle of the light-exiting end.

Abstract: A light guiding system, an edge-type backlight module and a liquid crystal display are disclosed. The light guiding system includes an ambient light collection system facing toward ambient light for absorbing the ambient light, a plurality of light guiding devices, and a fluorescent film arranged between the light emitting ends and the light incident surface. Each of the plurality of light guiding devices includes a light emitting end and a light incident end. The light emitting ends are arranged close to a light incident surface of a light guiding plate, and the light incident ends are arranged close to the ambient light collection system. The absorbed ambient light enters the light incident ends and propagates toward the light emitting ends. By adopting the fluorescent film, the light beams from the light emitting ends are diffused such that brightness difference on the light incident surface is enhanced.

Abstract: The present invention provides a backlight module which contains a collection device for collecting sunlight, an optical fiber cable, at least a light guide device connecting the collection device through the optical fiber cable, and a diffusion device and an optical member fixed at a distance from a side of each light guide device. Sunlight is collected by the collection device and is introduced into each light guide device; and each light guide device then guides and projects the collected sunlight onto the diffusion device and the optical member sequentially. The energy consumption and environmental friendliness of the backlight module of the present invention are greatly enhanced. The illumination efficiency and lighting uniformity are also improved by a simplified structure.

Abstract: A flicker band automated detection system and method are presented. In one embodiment an incidental motion mitigation exposure setting method includes receiving image input information; performing a motion mitigating flicker band automatic detection process; and implementing exposure settings based upon results of the motion mitigating flicker band automatic detection process. The auto flicker band detection process includes performing a motion mitigating process on an illumination intensity indication. Content impacts on an the motion mitigated illumination intensity indication are minimized. The motion mitigated illumination intensity indication is binarized. A correlation of the motion mitigated illumination intensity and a reference illumination intensity frequency is established.