Patent application number | Description | Published |
20120262647 | Liquid Crystal Display and Backlight Module Employed Therein - The present disclosure provides a backlight module. The backlight module includes a light guide plate and a light bar. The light guide plate includes a light incident surface, and the light bar is adjacent to the light incident surface. The light bar includes a printed circuit board and a plurality of point light sources alternately located on the printed circuit board. Each point light source includes an illuminator and an encapsulation apparatus. The encapsulation apparatus encapsulates the illuminator and fixes the light guide plate for limiting a distance between the light incident surface and the illuminator. The present disclosure also provides a liquid crystal display employing the backlight module. | 10-18-2012 |
20130272027 | Method for Manufacturing LED Light Bar and LED Light Bar and Backlight Module - The present invention provides a method for manufacturing LED light bar, which includes the following steps: (1) providing light-emitting dies of different sizes; (2) measuring luminous intensities of the light-emitting dies; (3) selecting among the light-emitting diodes ones of which the luminous intensities are different from each other by less than 5%; (4) encapsulating the selected ones of the light-emitting dies to form LED lights, which are of substantially identical encapsulated size; and (5) mounting and electrically connecting the LED lights to a printed circuit board to form an LED light bar. The method for manufacturing LED light bar according to the present invention uses light-emitting dies of different sizes so as to improve utilization rate of an entire wafer and effectively reduce the manufacture cost. | 10-17-2013 |
20130336007 | BACKLIGHT MODULE FOR 3D DISPLAYING AND LED LIGHT BAR THEREOF - The present invention relates to a backlight module for 3D displaying and an LED light bar thereof. The backlight module for 3D displaying includes a light guide plate and at least one LED light bar. The LED light bar is arranged at one edge of the light guide plate. The LED light bar includes a plurality of LEDs and a substrate. The LEDs are arranged in a line and are mounted to the substrate in a mutually spaced manner. The LEDs and the substrate of the LED light bar are arranged in a plurality of sections to correspond to a predetermined backlight scanning arrangement. LED spacing set in each of the sections is less than LED spacing set between the section and an adjacent section. The present invention also provides an LED light bar of backlight module for 3D displaying. | 12-19-2013 |
20130336009 | Light Guide Plate for 3D Displaying - A light guide plate includes upper microstructures forming an upper surface. The upper microstructures are distributed in a successive convex-concave alternating arrangement in a direction perpendicular to propagation direction of light in the light guide plate. The light guide plate is divided according to the distance from the light source in the light propagation direction into a proximal side and a remote side. With H indicating height of shape features of the upper microstructures and P indicating spacing between the shape features of the upper microstructures, the shape features of the upper microstructures show a distribution that is variable in the light propagation direction in such a way that the variation satisfies the condition that aspect ratio H/P of the upper microstructures at the proximal side of the light guide plate is less than aspect ratio H/P of the upper microstructures at the remote side of the light guide plate. | 12-19-2013 |
20140132881 | Direct-Light Backlight Module with Assisting Solar Light and Liquid Crystal Display Device - The present invention provides a direct light backlight module with solar light assistance, which comprises a backboard. The backboard is provided with a waveguide. A light source is disposed under the waveguide. An optical film module is disposed above the waveguide and faces the light emitted from the direct light source. An assisting light source device is provided and which collects solar light and direct it to an optical film module. The present invention further provides a liquid crystal display device with the direct light backlight module with assisting solar light. 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. | 05-15-2014 |
20140133176 | Sidelight Backlight Module with Assisting Solar Light Source and Liquid Crystal Display Device - 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. | 05-15-2014 |
20140192552 | BACKLIGHT MODULE - 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. | 07-10-2014 |
20140204605 | LIGHT-IMPORTING SYSTEM, DIRECT-LIT BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE - 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. Because of light diffusion device disposed between light-exiting end and light-entering surface expanding light-emitting angle of light-exiting end, the phenomenon of uneven luminance between light-exiting ends is improved, leading to improvement of displaying quality of direct-lit backlight module. | 07-24-2014 |
20140300843 | Light Guiding System, Edge-Lighting Backlight Module and Liquid Crystal Display - 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. | 10-09-2014 |
20150042923 | LIGHT-GUIDING PLATE, BACKLIGHT MODULE AND LIQUID CRYSTAL DISPLAY DEVICE - 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. As such, the incident light can be distributed uniformly over the entire light-guiding plate, and the dark corner phenomenon is eliminated and the emission uniformity of the light-guiding plate is improved. | 02-12-2015 |