TW202229998A - Backlight source system capable of increasing flexibility of design change to reduce costs required for design change - Google Patents

Abstract

A backlight source system is applied to a direct type backlight module. The backlight source system comprises a bearing unit, a bracket unit, and a light-emitting unit. The bearing unit has a base wall having two first sides spaced apart from each other and two second sides spaced apart from each other and connected to the first sides. The bracket unit includes a plurality of frame bodies extended to the first sides in parallel and fastened to the bearing unit. The light-emitting unit includes a plurality of light strips extended to the second sides in parallel and fastened to the frame bodies. By connecting the light-emitting unit and the bearing unit through the bracket unit, the flexibility of design changed can be increased to reduce the cost required for the design change.

Description

Backlight system

The present invention relates to a backlight source system, in particular to a backlight source system for a direct type backlight module.

As the technology of light emitting diodes (LEDs) becomes more and more mature, the light emitting diodes are widely used in various fields requiring light sources. In the field of direct type backlight modules, light bars with light emitting diodes have also been developed as light sources. Since the light source area required by the direct type backlight module is large, and it needs to be used together with light-emitting diodes of different brightness to adjust the type of light, it is necessary to install multiple light strips on the back panel of the backlight module and the lights The bars have different sizes for different brightness.

Usually, the light bar combination used by the backlight module needs to be designed first, and then a mounting structure for locking and positioning each light bar is fabricated on the back panel according to the preset light bar combination, and then each light bar is installed and fixed on the back panel. plate. Since the production of the mounting structure on the backplane requires open mold manufacturing, if the light bar combination is to be changed in design, the original mounting structure position on the backplane will not correspond to the fixed position of the light bar after the design change, so the mold needs to be opened again. There is a lot of cost in making a backplane, which results in a design change to the light bar combination.

Therefore, one objective of the present invention is to provide a backlight system that can solve the aforementioned problems.

Therefore, in some embodiments, the backlight source system of the present invention is suitable for direct type backlight modules, and the backlight source system includes: a carrying unit, a bracket unit and a light emitting unit. The carrying unit has a base wall, and the base wall has two first sides spaced apart from each other and opposite to each other and two second sides spaced apart from each other and connected to the first sides. The bracket unit includes a plurality of frame bodies extending parallel to the first sides and fixed to the carrying unit. The light-emitting unit includes a plurality of light bars extending parallel to the second sides and fixed to the frame bodies.

In some embodiments, two ends of each light bar are respectively fixed to two spaced apart frame bodies.

In some embodiments, two of the frame bodies are respectively adjacent to the first sides.

In some embodiments, the base wall further has a plurality of mounting portions for mounting the frame bodies respectively, and an abutting portion protruding forward from the mounting portions for the light bars to abut against.

In some embodiments, each mounting portion is stepped, and each frame body matches the shape of the corresponding mounting portion, and has a first fixing portion fixed to the corresponding mounting portion, and a first fixing portion fixed to the corresponding mounting portion. and a second fixing portion for fixing the light bars, and a connecting portion connecting the first fixing portion and the second fixing portion.

In some embodiments, each mounting portion is provided with a plurality of first mounting holes, and the first fixing portion and the second fixing portion of each frame body are provided with a plurality of first mounting hole positions corresponding to the mounting portion respectively The matching second mounting hole.

In some embodiments, the second fixing portion of each frame body is provided with a plurality of first fixing holes, and each light bar is provided with a plurality of positions corresponding to the first fixing holes of the connected second fixing portion respectively. the second fixing hole.

The present invention has at least the following effects: connecting the light-emitting unit and the carrying unit through the bracket unit can increase the flexibility of design changes, so as to reduce the cost required for design changes.

Referring to FIGS. 1 to 3 , an embodiment of a backlight source system 100 of the present invention is suitable for a direct type backlight module (not shown). The backlight source system 100 includes a carrying unit 1 , a bracket unit 2 and a light emitting unit 3.

The carrying unit 1 has a base wall 11 and a surrounding wall 12 extending forward from the periphery of the base wall 11 . The base wall 11 has two first sides 111 opposite to each other and two opposite to each other and connecting the two The second side 112 of the first side 111 . The bracket unit 2 includes a plurality of frame bodies 21 extending parallel to the first sides 111 and fixed to the carrying unit 1 . The light-emitting unit 3 includes a plurality of light bars 31 extending parallel to the second sides 112 and fixed to the frame bodies 21 .

In this embodiment, the base wall 11 is substantially rectangular and the length of the second side 112 is greater than the length of the first side 111 . The bracket unit 2 specifically includes four frame bodies 21 , wherein two frame bodies 21 are respectively close to the first sides 111 , and the other two frame bodies 21 are integrally formed as a single member and are arranged in the middle of the first sides 111 . . Specifically, the frame bodies 21 are all disposed on the front surface of the base wall 11 , and two groups of them are arranged at intervals left and right, and two ends of each light bar 31 are respectively fixed to the two spaced apart frame bodies 21 . The number of the racks 21 can be increased or decreased according to requirements. When the length of the second side 112 of the base wall 11 is short, only two racks 21 can be arranged at intervals. In this embodiment, each light bar 31 has a circuit board 311 and a plurality of light-emitting diodes 312 disposed on the circuit board 311 , and the light-emitting diodes 312 of the light bars 31 are partially identical in configuration and partially different. , while having different brightness.

Referring to FIGS. 3 to 6 , in this embodiment, the base wall 11 further has a plurality of mounting portions 113 for mounting the frame bodies 21 respectively, and a plurality of mounting portions 113 protruding forward for the lamps. The abutment 114 against which the strip 31 abuts. Each mounting portion 113 is stepped, and each frame body 21 is matched with the corresponding mounting portion 113 in shape, and has a first fixing portion 211 fixed to the corresponding mounting portion 113 , a first fixing portion 211 fixed to the corresponding mounting portion 113 and A second fixing portion 212 for fixing the light bars 31 and a connecting portion 213 connecting the first fixing portion 211 and the second fixing portion 212 .

Each mounting portion 113 is provided with a plurality of first mounting holes 115 , and the first fixing portion 211 and the second fixing portion 212 of each frame body 21 are provided with a plurality of positions corresponding to the first mounting holes 115 of the mounting portion 113 respectively. The matching second installation holes 214, the corresponding first installation holes 115 and the second installation holes 214 can be used for locking with a screw (not shown) or riveting with a rivet (not shown), so as to attach the frame body 21 It is fixed to the base wall 11 . The second fixing portion 212 of each frame body 21 is provided with a plurality of first fixing holes 215 , and each light bar 31 is provided with a plurality of positions corresponding to the first fixing holes 215 of the connected second fixing portion 212 respectively. The second fixing hole 313, the corresponding first fixing hole 215 and the second fixing hole 313 can be used for locking with a screw (not shown) or riveting with a rivet (not shown), so as to fix the light bar 31 to the frame body 21 , and then the light bar 31 is assembled with the carrying unit 1 . During assembly, the frame bodies 21 are first fixed to the base wall 11 , and then the light bars 31 are fixed to the frame bodies 21 .

When the combination of the light bars 31 is to be changed in design, the width of the light bars 31 with different intensities will be different, so the position of the second fixing hole 313 of the new combination of light bars 31 may be changed, as long as the brackets 21 are adjusted The position of the first fixing hole 215 can be set to match the position of the second fixing hole 313 of the newly assembled light bar 31 , without changing the carrying unit 1 , which can reduce the cost of redesigning and changing the carrying unit 1 .

To sum up, by connecting the light-emitting unit 3 and the carrying unit 1 by the bracket unit 2 , the flexibility of design changes can be increased, and the cost required for design changes can be reduced.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

100: Backlight system 1: Bearing unit 11: base wall 111: First side 112: Second side 113: Installation Department 114: Abutment 115: The first mounting hole 12: Surrounding the Wall 2: Bracket unit 21: Frame 211: The first fixed part 212: Second fixed part 213: Connector 214: Second mounting hole 215: The first fixing hole 3: Lighting unit 31: light bar 311: circuit board 312: Light Emitting Diode 313: Second fixing hole

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is a perspective view of an embodiment of a backlight system of the present invention; Fig. 2 is a front view of this embodiment; Figure 3 is an exploded perspective view of one of the embodiments; Fig. 4 is another perspective exploded view of the embodiment; Figure 5 is a fragmentary exploded perspective view of one of the embodiments; and FIG. 6 is an incomplete cross-sectional view taken along the line VI-VI in FIG. 1 .

100: Backlight system

1: Bearing unit

11: base wall

111: First side

112: Second side

113: Installation Department

114: Abutment

12: Surrounding the Wall

2: Bracket unit

21: Frame

3: Lighting unit

31: light bar

311: circuit board

312: Light Emitting Diode

Claims (7)

A backlight source system, suitable for a direct type backlight module, includes: a carrying unit, having a base wall, the base wall has two first sides opposite to each other at intervals and two second sides opposite to each other and connecting the first sides; a bracket unit, comprising a plurality of frame bodies extending parallel to the first sides and fixed to the carrying unit; and A light-emitting unit includes a plurality of light bars extending parallel to the second sides and fixed to the frame bodies. The backlight system according to claim 1, wherein two ends of each light bar are respectively fixed to two spaced apart frame bodies. The backlight system according to claim 1, wherein two of the frame bodies are respectively close to the first sides. The backlight system according to claim 1, wherein the base wall further has a plurality of mounting portions for the frame bodies to be mounted on respectively, and an abutment protruding forward from the mounting portions for the light bars to abut against. Arrived. The backlight source system according to claim 4, wherein each mounting portion is stepped, and each frame body matches the shape of the corresponding mounting portion, and has a first fixing portion fixed to the corresponding mounting portion, a fixing portion and a second fixing portion on the corresponding mounting portion for fixing the light bars, and a connecting portion connecting the first fixing portion and the second fixing portion. The backlight system according to claim 5, wherein each mounting portion is provided with a plurality of first mounting holes, and the first fixing portion and the second fixing portion of each frame are provided with a plurality of corresponding mounting portions. The position of the first installation hole is matched with the second installation hole. The backlight system according to claim 5, wherein the second fixing portion of each frame is provided with a plurality of first fixing holes, and each light bar is provided with a plurality of first fixing holes respectively connected to the second fixing portion. A second fixing hole matched with a fixing hole.

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