Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of backlight source and flat panel, applied in the field of backlight source, can solve the problems of thick thickness, opaqueness, limited specifications, etc., to achieve the effect of improving luminous efficiency, satisfying outdoor applications, and low manufacturing cost
Inactive Publication Date: 2019-07-23
湖南凯星电子科技有限公司
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
There are also defects in the following aspects when using the direct-down backlight of this simple box structure to make light box display equipment: First, the box is surrounded by solid and opaque box walls, and there are serious problems after splicing into a light box with a large area of light. dark frame
The second is that the thickness is too thick and the installation is inconvenient; although the method of installing a light diffusion plate on the opening surface can improve the uniformity of the emitted light and reduce the thickness of the cabinet, but the cabinet walls around the cabinet cannot achieve shadowless splicing The third is that due to the limited specifications of the finished material of
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0038] The descriptions of the front side, the rear side, the inside, the outside, and the surroundings in this embodiment are based on the drawings and the positions in the implementation.
[0039] A flat backlight embodiment of the present invention, such as Figure 1 to Figure 9 As shown, the backlight includes a diffuser plate 1, a conical reflector 2, and a light bar 3, and the front side of the light bar 3 is provided with a light source 31 arranged in a line; Interconnected, evenly distributed in an array, the conical cavity 21 facing the rear of the conical top surface 22 and the lamp hole 23 on the reflector at the conical top surface 22 and the conical cavity surrounding each row or column The light groove 25 on the reflector of top surface 22 is integrally formed; a lay...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a flat backlight, which comprises light-scattering plates, a conical reflector and a light bar. The conical reflector of the flat backlight is integrally formed by a pluralityof conical cavities, light holes and light troughs, wherein the multiple conical cavities protrude backwards, are connected to one another and uniformly distributed according to an array, and have backward conical top faces, the light holes are formed in reflectors at the conical top face parts, and the light troughs surround the reflectors of each row or each column of the conical top faces; theconical inner walls of the conical cavities are coated with reflective layers, a connection mechanism on a plurality of light-scattering plates is arranged on the positions, near the edge parts, around the rear sides of the light-scattering plates, and a connection mechanism on the reflectors is arranged on the positions, near the edge parts, around the conical reflectors; and light strips are mounted in the light troughs 25 on the reflectors, light of light sources on the light strips penetrate through the light holes in the reflectors, and the light-scattering plates are installed on the front sides of the conical reflectors and fixed through the connecting mechanism on the light-scattering plates and the connecting mechanism on the reflectors. According to the technical scheme, the light emitted by the light sources shine evenly on the light-scattering plates without dark edges, after being spliced together, obvious edge lines and dark fringes can also be avoided, and display equipment with large-area luminescence can be made by splicing.
Description
technical field [0001] The invention relates to the technical field of backlight sources, in particular to a flat panel backlight source. Background technique [0002] The light diffusion module is the main part of the backlight. In real life, the application of backlight is extremely extensive, such as: TFT-LCD (liquid crystal display), light boxes, lighting and other special equipment. Among them, light boxes are the most widely used, such as: X-ray light-emitting devices, vision detectors, flat-panel lights, light curtains, floor lights, windows, containers, signs, architectural decorations, light box advertisements, traffic signs, guide signs, Light box signboards, light box advertisements, exhibitions, and military and transportation equipment (such as: aircraft carriers, submarines, ships, aircraft, high-speed rail, trains, automobiles) guide signs, etc. The uniformity of light is one of the important indicators of the backlight source. Different applications have di...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.