CN216361896U - Light source module and display device - Google Patents

Abstract

A light source module comprises a circuit backboard, an optical element, a plurality of light-emitting elements and an antenna structure. The optical element is arranged on the circuit back plate and is provided with a light inlet surface and a light outlet surface, and the light inlet surface is connected with the light outlet surface. The light-emitting elements are arranged on the circuit back plate and used for providing light rays to enter the light inlet surface. The antenna structure is configured in the circuit backboard. The present invention also provides a display device using the light source module, which has the advantage of light weight due to the integrated antenna structure.

Description

Light source module and display device

Technical Field

The present invention relates to a light source module, and more particularly, to a light source module having an antenna structure and a display device using the same.

Background

Due to the increasing popularity of wireless networks, antennas are built in notebook computers today. Generally, a notebook computer includes a screen side having a display screen and an input side having a host and a keyboard. In order to improve the performance of the antenna for transmitting and receiving signals, the screen is erected when the notebook computer is used, and the antenna is usually disposed at the edge of the housing above the display screen.

However, with the development of light and thin electronic products, the bezel of the notebook computer is designed to be narrower and narrower. This compresses the space in which the antenna is placed. In addition, the currently used wireless transmission modules are various in types, and the antennas used by each type of wireless transmission module are different, so that when the placement space is narrowed, interference may be caused between different antennas. The placement of the antenna is also affected by the length of the signal line conducting path.

If the antenna is placed on the use side of the notebook computer, the problem of insufficient space can be solved. However, when the antenna is close to the host, it is easily affected by the noise of the host; when the antenna is close to the keyboard, the configuration area of the antenna is easily covered by both hands when the user uses the antenna, which results in a loss of efficiency of transmitting and receiving signals.

Therefore, a new structure is needed to prevent the performance of the antenna for transmitting and receiving signals from being affected while maintaining the characteristics of the electronic product that is light and thin.

The background section is provided to aid in understanding the present disclosure, and thus, the disclosure in the background section may include other art that does not constitute a part of the common general knowledge of the skilled person. Furthermore, the statements in the "background" section do not represent that matter or the problems identified as being "prior to" or as being known or appreciated by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a light source module which can integrate an antenna structure and has the advantage of light weight.

The utility model provides a display device, which can integrate an antenna structure, achieve light and thin structure and reduce assembly cost.

Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.

In order to achieve one or a part of or all of the above or other objects, an embodiment of the utility model provides a light source module including a circuit backplane, an optical element, a plurality of light emitting elements, and an antenna structure. The optical element is arranged on the circuit back plate and is provided with a light inlet surface and a light outlet surface, and the light inlet surface is connected with the light outlet surface. The light-emitting elements are arranged on the circuit back plate and used for providing light rays to enter the light inlet surface. The antenna structure is configured in the circuit backboard.

In order to achieve one or a part of or all of the above or other objects, a display device provided in an embodiment of the utility model includes a display panel and the light source module. The display panel is configured on the light emitting side of the light source module.

In the display device of the embodiment of the utility model, the circuit backboard of the light source module has the bearing functions of the circuit substrate and the backboard at the same time, and the circuit substrate does not need to be additionally installed, so that the light emitting element can be driven, the weight of the light source module is reduced, and the assembly cost is reduced. In addition, since the antenna structure is disposed in the circuit backplane, when the display device of the embodiment of the utility model is used in devices such as a notebook computer, compared with the conventional module in which the antenna structure is accommodated in a narrow space at the edge for thinning and lightening, which affects the performance, the display device of the embodiment of the utility model can improve the performance of the antenna structure for transmitting and receiving signals, and maintain the characteristic of thinning and lightening.

In order to make the aforementioned and other objects, features and advantages of the utility model comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic cross-sectional view of a light source module according to an embodiment of the utility model.

Fig. 2 is an exploded view of a circuit backplane according to an embodiment of the present invention.

Fig. 3 is a block diagram of a light source module according to an embodiment of the utility model.

Fig. 4 is an exploded view of a circuit backplane according to another embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a light source module according to another embodiment of the utility model.

Fig. 6 is a schematic cross-sectional view of a light source module according to another embodiment of the utility model.

Detailed Description

The foregoing and other features and advantages of the utility model will be apparent from the following, more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.

Fig. 1 is a schematic cross-sectional view of a light source module according to an embodiment of the utility model. Referring to fig. 1, a display device 1 of the present embodiment includes a light source module 10 and a display panel 20. The light source module 10 includes a circuit backplane 100, an optical element 200, a plurality of light emitting elements 300, and an antenna structure 400. The optical element 200 is disposed on the circuit back plate 100 and has a light incident surface 210 and a light emitting surface 220. The light incident surface 210 is connected to and perpendicular to the light emitting surface 220. The light emitting elements 300 are disposed on the circuit backplane 100 and are configured to provide light L incident on the light incident surface 210. Since fig. 1 is a schematic cross-sectional view, only one light emitting device 300 is illustrated, but the number of light emitting devices 300 is not particularly limited in the present invention. In addition, in the present embodiment, the light source module 10 is, for example, a side-in light source module, and the optical element 200 is, for example, a light guide plate, but is not limited thereto. In another embodiment, the light source module 10 may also be a direct-type light source module, and the optical element 200 is, for example, a diffuser plate. The optical device 200 further includes a brightness enhancement film, a prism sheet, or a composite prism sheet. The antenna structures 400 are disposed in the circuit board 100, and two antenna structures 400 are illustrated in fig. 1, but the number of the antenna structures 400 is not particularly limited in the present invention. Specifically, in the present embodiment, the circuit backplate 100 has a carrying surface 110, and the light-emitting elements 300 and the optical elements 200 are disposed on the carrying surface 110. The display panel 20 is disposed on the light emitting side of the light source module 10, and for convenience of illustration, the display panel 20 and the light source module 10 are separately illustrated in fig. 1, which does not represent an actual assembly situation.

In the present embodiment, the light emitting elements 300 are, for example, Light Emitting Diodes (LEDs), but are not limited thereto. The Light emitting device 300 can also be other kinds of Light sources, such as Light bars (Light Bar) formed by a lamp or a plurality of Light emitting diodes, but the utility model is not limited to the kind of Light sources.

The circuit backplane 100 is, for example, a glass fiber board (FR-4 board), but not limited thereto, and belongs to a printed circuit board, the light emitting devices 300 are, for example, in direct contact with the carrying surface 110 and electrically connected to the circuit backplane 100, and the circuit backplane 100 is used for driving the light emitting devices 300 to emit light L. That is, the circuit back plate 100 has the functions of the circuit substrate and the back plate in the known light source module. In the embodiment, the circuit backplane 100 is, for example, a multi-layer board structure, so that the antenna structure 400 can be disposed between the layers of the circuit backplane 100. In addition, the circuit backplane 100 may be disposed with a reflective layer 120 at a position of the carrying surface 110 corresponding to the optical element 200, and the reflective layer 120 is disposed between the circuit backplane 100 and the optical element 200. The reflective layer 120 may be a highly reflective white paint coating, but is not limited thereto, and in another embodiment, a light absorbing layer may be provided. In the embodiment, the highly reflective white paint coating is directly coated on the circuit board 100, so that the effect of uniform light emission after reflection can be adjusted, and a reflective sheet is not required to be additionally arranged, thereby reducing the weight and saving the cost.

In the present embodiment, the edge of the circuit board 100 has a recess 130. The light source module 10 further includes a reflective rubber frame 500, and the reflective rubber frame 500 has a fastening portion 510 and a turning portion 520. The engaging portion 510 is engaged with the recessed portion 130, so that the reflective rubber frame 500 is fixed to the circuit board 100. The above-mentioned fixing manner is only one of the embodiments, and the utility model is not limited to the method for fixing the reflective rubber frame 500 to the circuit board 100, for example, the engaging portion 510 and the recessed portion 130 can be screwed together by screws. The turning part 520 extends from the body of the reflective frame 500 and turns toward the plurality of light emitting elements 300. Specifically, the orthographic projection area of the turning part 520 of the reflective frame 500 on the circuit backboard 100 covers the partial areas of the plurality of light emitting elements 300 and the optical element 200. The reflective rubber frame 500 is disposed on the circuit board 100 by injection molding or 3D printing, for example. By combining the circuit backboard 100 and the reflective rubber frame 500, the function of the traditional backboard can be replaced. Moreover, the reflective frame 500 has other functions of assisting in preventing the plurality of light emitting elements 300 and the optical element 200 from generating large displacement, and the turning part 520 further has a high-reflection type white paint coating layer, so that the light L emitted by the plurality of light emitting elements 300 can be reflected into the optical element 200, thereby reducing the light loss and increasing the light output of the light source module 10.

The Display Panel 20 is, for example, a Liquid Crystal Display Panel (Liquid Crystal Display Panel). The liquid crystal display panel is, for example, but not limited to, a transmissive display panel or a transflective display panel, and the display panel 20 is used for receiving the light L from the optical element 200.

In the display device 1 of the embodiment, the circuit back plate 100 of the light source module 10 has the carrying functions of the circuit substrate and the back plate, and the circuit substrate does not need to be additionally mounted, so that the weight of the light source module 10 is reduced, and the assembly cost is reduced. In addition, since the antenna structure 400 is disposed in the circuit backplane 100, when the display device 1 of the embodiment is used in a notebook computer device, compared to the conventional backlight module that houses the antenna structure in a narrow space at the edge for the purpose of thinning and lightening, the display device 1 of the embodiment can improve the performance of the antenna structure 400 in transmitting and receiving signals, and maintain the property of thinning and lightening.

Hereinafter, the arrangement of the antenna structure 400 in the circuit backplane 100 will be described in detail. Fig. 2 is an exploded view of a circuit backplane according to an embodiment of the present invention. Fig. 3 is a block diagram of a light source module according to an embodiment of the utility model. Referring to fig. 2 and fig. 3, the circuit backplane 100 of the present embodiment is a multi-layer board structure, and is formed by sequentially stacking boards 101, 102, and 103, for example, wherein a top surface of the board 103 is a carrying surface 110. The number of plies in FIG. 2 is for illustration only and the utility model is not limited to a particular number of plies. The antenna structure 400 includes a plurality of first antennas 410, and the first antennas 410 are disposed between different layers of a multi-layer structure, for example, but not limited thereto. Taking fig. 2 as an example, a part of the first antenna 410 is disposed between the layer board 101 and the layer board 102, another part of the first antenna 410 is disposed between the layer board 102 and the layer board 103, and the first antennas 410 do not overlap in the stacking direction S of the multilayer board structure. Specifically, first antenna 410 disposed between laminate 101 and laminate 102 corresponds to the front side of the multilayer board structure, for example, and first antenna 410 disposed between laminate 102 and laminate 103 corresponds to the rear side of the multilayer board structure, for example. The above-described embodiments are merely illustrative and are not intended to limit the actual arrangement of the antenna 410. In other embodiments, besides different arrangements, the plurality of first antennas 410 may be disposed on the same layer of the multi-layer board structure, such as between the layer 101 and the layer 102 or between the layer 102 and the layer 103, but the first antennas 410 may not overlap in the stacking direction S. The first antenna 410 may be disposed at a corner or edge with respect to the laminate.

The light source module 10 further includes a wireless transmission module 600. The antenna structure 400 is connected to the wireless transmission module 600 for transmitting signals to the wireless transmission module 600. In this embodiment, the wireless transmission module 600 includes a first wireless transmission module. The plurality of first antennas 410 are connected to the first wireless transmission module (wireless transmission module 600). The first wireless transmission module is, for example, a mobile communication module or a wireless local area network module. For example, such as a fourth generation mobile communication technology module (4G module), a fifth generation mobile communication technology module (5G module), a sixth generation mobile communication technology module (6G module), a Wireless hotspot/network (Wi-Fi), etc., and The first antenna 410 is an antenna corresponding to The first Wireless transmission module, such as a 4G antenna, a 5G antenna, a 6G antenna, a Wi-Fi antenna, etc. These types of antennas require a large area for arrangement, and are susceptible to interference due to shielding, which affects the performance of transmitting and receiving signals. The antenna structure 400 is disposed in the circuit backplane 100, so that the space is not limited and the antenna structure does not overlap in the stacking direction S to avoid shielding interference.

Fig. 4 is an exploded view of a circuit backplane according to another embodiment of the present invention. Referring to fig. 3 and fig. 4, the circuit backboard 100a of the present embodiment has a structure and advantages similar to those of the circuit backboard 100 described above, but the difference is that in the circuit backboard 100a of the present embodiment, the antenna structure 400 includes a plurality of second antennas 420, and the second antennas 420 are disposed between different layers of the multi-layer board structure, for example. Taking fig. 4 as an example, a part of the second antennas 420 is disposed between the layer 101 and the layer 102, another part of the second antennas 420 is disposed between the layer 102 and the layer 103, and the second antennas 420 may overlap each other in the stacking direction S of the multilayer board structure. Different from the first antenna 410, the arrangement of the second antennas 420 of the present invention is that the second antennas 420 may be overlapped in the stacking direction S, or may be disposed only on the same layer of the multi-layer structure, for example, between the layer plate 101 and the layer plate 102 or between the layer plate 102 and the layer plate 103. The second antenna 420 is not disposed at a corner or edge with respect to the laminate. The first antenna 410 and the second antenna 420 are non-overlapping with respect to the position of the laminate.

In this embodiment, the wireless transmission module 600 further includes a second wireless transmission module. The plurality of second antennas 420 are connected to a second wireless transmission module (wireless transmission module 600). The second wireless transmission module is, for example, a Near-field Communication module (NFC module) module. And the second antenna 420 is a short-range wireless communication antenna. For example, the wireless charging function may be implemented to charge an article placed on a notebook computer when the wireless charging function is implemented on the notebook computer. If the user has a need to charge different objects at the same time, the second antenna 420 is disposed in the circuit back plate 100 instead of at the edge of the display device 1, so that the space is not limited, and the need can be met more easily.

In another embodiment, the first antenna 410 and the second antenna 420 may be disposed simultaneously, for example, between different layers of a multi-layer board structure. It should be noted that it is still necessary to avoid the single first antenna 410 overlapping the second antenna 420 or other first antennas 410 in the stacking direction S to affect the performance of transmitting and receiving signals.

Fig. 5 is a schematic cross-sectional view of a light source module according to another embodiment of the utility model. Referring to fig. 5, the display device 1a of the present embodiment has a similar structure and advantages to the display device 1 described above, but the difference is that in the display device 1a of the present embodiment, the light source module 10a further includes a substrate 700 disposed on the circuit backboard 100. The light emitting elements 300 are also disposed on the substrate 700 and electrically connected to the substrate 700. The substrate 700 is disposed between the light emitting elements 300 and the circuit backplane 100, and the substrate 700 is, for example, a printed circuit board. Specifically, the substrate 700 is used for carrying and driving the plurality of light emitting elements 300 to emit light, and the substrate 700 is disposed on the carrying surface 110. According to different design requirements, the circuit backplane 100 may also function as a backplane carrier, and the utility model is not particularly limited to the usage of the circuit backplane 100. The substrate 700 may be sized to configure a plurality of light emitting elements 300, for example, without requiring an excessive area to carry other elements in the light source module 10 a.

Fig. 6 is a schematic cross-sectional view of a light source module according to another embodiment of the utility model. Referring to fig. 6, the display device 1b of the present embodiment has a structure and advantages similar to those of the display device 1 described above, except that in the display device 1b of the present embodiment, the light source module 10b further has a plurality of display light emitting elements 310 disposed on a side of the circuit backplane 100 away from the optical element 200, i.e., the other side of the circuit backplane opposite to the light emitting side of the light source module 10 b. The display light emitting element 310 is, for example, a Light Emitting Diode (LED), but is not limited thereto. The Light emitting device 300 can also be other kinds of Light sources, such as Light bars (Light Bar) formed by a lamp or a plurality of Light emitting diodes, but the utility model is not limited to the kind of Light sources. The configuration of the embodiment can be applied to a dual-sided display, and compared to the prior art that in the same situation, two substrates are required to be disposed on two sides of the back plate respectively, and then the light emitting elements are disposed on the substrates, the light source module 10b of the embodiment can only use a single circuit back plate 100 to fulfill the above requirements. The present invention is not limited to the arrangement of the plurality of display light emitting devices 310 disposed on the side of the circuit backplane 100 away from the optical device 200, for example, when the display device 1b of the present embodiment is applied to a notebook computer or other similar devices, the display light emitting devices 310 may be arranged in a LOGO pattern without affecting the display screen on the other side.

In summary, in the display device of the embodiment of the utility model, the circuit back plate of the light source module has the bearing functions of the circuit substrate and the back plate at the same time, and no additional circuit substrate is needed to be installed, so that the light emitting element can be driven, the weight of the light source module can be reduced, and the assembly cost can be reduced. In addition, since the antenna structure is disposed in the circuit backplane, when the display device of the embodiment of the utility model is used in devices such as a notebook computer, compared with the conventional module in which the antenna structure is accommodated in a narrow space at the edge for thinning and lightening, which affects the performance, the display device of the embodiment of the utility model can improve the performance of the antenna structure for transmitting and receiving signals, and maintain the characteristic of thinning and lightening.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and the simple equivalent changes and modifications made according to the claims and the disclosure of the present invention are still included in the scope of the present invention. Moreover, it is not necessary for any embodiment or claim of the utility model to address all of the objects, advantages, or features disclosed herein. In addition, the abstract and the title (the title of the utility model) are provided for assisting the search of the patent document and are not intended to limit the scope of the right of the utility model. Furthermore, the terms "first," "second," and the like in the description and in the claims are used for naming elements (elements) or distinguishing between different embodiments or ranges, and are not intended to limit the upper or lower limit on the number of elements.

Description of reference numerals:

1. 1a, 1b display device

10. 10a, 10b light source module

20 display panel

100. 100a circuit back plate

101. 102, 103 laminate

110 bearing surface

120 reflective layer

130 concave part

200 optical element

210 incident surface

220 the light-emitting surface

300 light emitting element

310 display light emitting element

400 antenna structure

410 first antenna

420 second antenna

500 reflecting rubber frame

510 clamping part

520 turning part

600 wireless transmission module

700 base plate

L is light

S, stacking direction.

Claims (13)

1. A light source module, comprising a circuit backplane, an optical element, a plurality of light emitting elements, and an antenna structure, wherein:

the optical element is arranged on the circuit back plate and is provided with a light inlet surface and a light outlet surface, and the light inlet surface is connected with the light outlet surface;

the light-emitting elements are arranged on the circuit back plate and used for providing light rays to enter the light incident surface; and

the antenna structure is configured in the circuit backboard.

2. The light source module of claim 1, further comprising a first wireless transmission module, wherein the antenna structure comprises a plurality of first antennas, the plurality of first antennas being connected to the first wireless transmission module.

3. The light source module of claim 2, wherein the circuit backplane is a multi-layer board structure, the plurality of first antennas are disposed between different layers of the multi-layer board structure, and the plurality of first antennas do not overlap in a stacking direction of the multi-layer board structure.

4. The light source module of claim 2, further comprising a second wireless transmission module, wherein the antenna structure further comprises a plurality of second antennas, the plurality of second antennas being connected to the second wireless transmission module.

5. The light source module of claim 4, wherein the circuit backplane is a multi-layer board structure, the plurality of second antennas are disposed between different layers of the multi-layer board structure, and the plurality of second antennas overlap each other in a stacking direction of the multi-layer board structure.

6. The light source module of claim 2, wherein the first wireless transmission module is a mobile communication module or a wireless local area network module.

7. The light source module of claim 4, wherein the second wireless transmission module is a short-range wireless communication module.

8. The light source module of claim 1, further comprising a substrate disposed on the circuit backplane, wherein the plurality of light-emitting elements are further disposed on the substrate and electrically connected to the substrate.

9. The light source module of claim 1, wherein the plurality of light emitting elements are in direct contact with and electrically connected to the circuit backplane.

10. The light source module of claim 1, further comprising a reflective frame disposed at an edge of the circuit board, wherein an orthographic projection area of the reflective frame on the circuit board covers the plurality of light emitting elements.

11. The light source module of claim 1, wherein the circuit backplane is a fiberglass board.

12. The light source module of claim 1, further comprising a plurality of display light emitting elements, wherein the plurality of light emitting elements are further disposed on a side of the circuit backplane away from the optical element.

13. A display device, comprising a light source module and a display panel, wherein:

the light source module comprises a circuit backboard, an optical element, a plurality of light-emitting elements and an antenna structure, wherein:

the optical element is arranged on the circuit back plate and is provided with a light inlet surface and a light outlet surface, and the light inlet surface is connected with the light outlet surface;

the light-emitting elements are arranged on the circuit back plate and used for providing light rays to enter the light incident surface; and

the antenna structure is configured in the circuit backboard; and

the display panel is configured on the light emitting side of the light source module.

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