Direct type light-emitting diode (LED) backlight module
A technology of light-emitting diodes and backlight modules, which is applied to the semiconductor devices of light-emitting elements, light sources, electric light sources, etc., can solve the problems of long assembly hours and high wire costs, and achieve the effect of reducing wire costs and assembly hours
Inactive Publication Date: 2017-02-01
TOP VICTORY INVESTMENTS
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Therefore, each regional dimming control board needs to be connected to a plurality of corresponding LED light bars through multiple connection lines, and these connection lines need to be routed from the second surface of the back panel where the regional dimming control board is located to the LED light bars The first surface of the backplane where it is located, resulting in high wire costs and long assembly hours
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] In order to clearly present the features of the present invention, each component in the drawings is only schematic rather than drawn according to the shape and scale of the actual object, and some known components are omitted. In addition, in order to present the consistency to the description of the present invention, in different embodiments, the same or similar symbols represent the same or similar components. The directional terms mentioned in the embodiments, such as: up, down, left, right, front, back, etc., are only referring to the directions of the drawings, therefore, the directional terms used are used for illustration, not for limitation. this invention.
[0039] Please also see Figure 1 to Figure 5 , Figure 1 to Figure 4 They are respectively an exploded view, a perspective view, a top view and a bottom view of the first embodiment of the direct type LED backlight module of the present invention, Figure 5 then Figure 2 to Figure 4 A cross-sectional...
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
A direct type light-emitting diode (LED) backlight module comprises a back plate, a light bar sub-plate, a plurality of LED light bars and one or more local dimming control plates. The back plate is provided with a first surface and a second surface opposite to the first surface, the first support is provided with a groove, and the second surface is provided with one or more through holes communicating with the groove. The light bar sub-plate is arranged in the groove and provided with a first face and a second face opposite to the first face, the first face is provided with a plurality of first connectors which protrude out of the groove, and the second face is provided with one or more second connectors. Each second connector penetrates through the corresponding through hole to protrude out of the second surface, and the first connectors are electrically connected with the second connectors correspondingly through a circuit arranged on the light bar sub-plate. The LED light bars are arranged on the first surface, and each LED light bar is provided with a third connector which is connected with the corresponding first connector. The local dimming control plates are arranged on the second surface and each provided with a fourth connector which is connected with the corresponding second connector. According to the direct type LED backlight module, the wire cost can be lowered, and the assembling man-hour can be shortened.
Description
technical field [0001] The present invention relates to a direct type light emitting diode (Light-Emitting Diode, LED) backlight module, in particular to a direct type LED backlight module adopting local dimming technology. Background technique [0002] The direct-lit LED backlight module is arranged behind a display panel (such as a liquid crystal panel) which itself does not emit light to provide backlight so that the display panel can normally display images. In addition, the direct-lit LED backlight module can also adopt regional dimming technology, which can greatly reduce power consumption and improve the contrast of the display screen. [0003] The basic structure of the existing direct-lit LED backlight module using the local dimming technology includes a backplane, a reflector, a plurality of LED light bars, a diffuser plate, and at least one local dimming control board. Each LED light bar includes a printed circuit board (Printed Circuit Board, PCB) and a pluralit...
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
Login to View More IPC IPC(8): F21S8/00F21V19/00F21V23/00F21V23/06F21Y115/10
CPCF21S8/00F21V19/0025F21V23/00F21V23/06
Inventor蔡佳璋吕季錞林君鸿黄子闳苏柏杰阙婉婷
OwnerTOP VICTORY INVESTMENTS