CN1249503C - Light tube module and backlight device including the light tube module - Google Patents

Abstract

A lamp module and a backlight device including the same are provided. The lamp tube module comprises an elastic component, a lamp tube and a supporting component. The elastic component has a receiving portion, such as a hole, for receiving one end of the lamp tube. The supporting component has a receiving portion, such as a groove, for engaging the elastic component. The elastic component comprises a plug part used for clamping the bearing part of the support component. One side of the supporting component is provided with a groove for heat dissipation. The lamp tube module also comprises a heat conducting component which is arranged in the groove and used as a heat radiating component.

Description

Light tube module and backlight device including the light tube module

technical field

The present invention relates to a lamp tube module and a backlight device including the lamp tube module, in particular to a lamp tube module applied to a direct type backlight device and a backlight device including the lamp tube module.

Background technique

The traditional cathode ray tube (CRT) device cannot be further reduced and lightened no matter in volume or weight. Therefore, liquid crystal display (LCD) devices have gradually replaced cathode ray tube devices due to their thinness and excellent display quality. The difference between a liquid crystal display device and a cathode ray tube device is that the liquid crystal component itself does not emit light, so a light source needs to be provided. Generally, a device that provides a light source for a liquid crystal display device is commonly referred to as a backlight device.

The backlight device can be divided into two categories according to the position of the lamp tube on the liquid crystal display device, one is the edge type back light device, and the other is the direct type back light device (direct type back light device). device). The lamp tubes of the side light backlight device are arranged on the sides (one side or two opposite sides) of the liquid crystal display, and usually include a light guide plate, a diffusion plate and a reflection plate. The light generated by the lamp tube must be guided by the light guide plate on the side of the lamp tube, and then diffused by the diffuser plate above the light guide plate, and the scattered light is reflected to the direction of the diffuser plate by the reflector plate below. Evenly illuminate the light into the LCD panel (LCD panel).

In contrast, the direct-lit backlight device does not require a light guide plate, and the light is directly and evenly irradiated to the liquid crystal display panel through the functions of the reflection plate and the diffusion plate. Therefore, the direct type backlight device has high light conductivity and is not limited by the size of the display area, and is usually applied to a liquid crystal display device with a large display area.

In the traditional arrangement of the lamp tubes of the direct-lit backlight device, the lamp tubes are usually individually and directly clamped on the frame or the reflector of the backlight device, which cannot securely position the lamp tubes. With such a design, the lamp tube is prone to displacement, thus causing light leakage or electric leakage of the backlight device. In severe cases, the wires may even be torn off. In addition, generally, when replacing the lamp tube of the backlight device, it must be carried out in a dust-free environment. When the lamp tube is directly fixed on the frame of the backlight device, it will be inconvenient to disassemble and assemble the lamp tube. For example, when the lamp tube of the backlight device of the LCD TV fails, the entire backlight device must be disassembled, and the lamp tube may be replaced under special circumstances. Therefore, the method of fixing the lamp tube to the frame will increase the difficulty of replacing the lamp tube, thereby delaying the maintenance time.

In view of the above-mentioned shortcomings of the prior art, it is necessary to provide a lamp module applied to a backlight device, so as to simplify the assembly procedure and reduce the assembly cost.

Contents of the invention

The purpose of the present invention is to provide a light tube module and a backlight device including the light tube module, which uses the combination of the light tube and the elastic component to engage with the supporting component, so as to simplify the assembly procedure and reduce the assembly cost.

Another object of the present invention is to provide a lamp module, which is applied to a direct-lit backlight device, which provides a support assembly with heat dissipation function, and can flexibly increase or decrease the number of lamps according to different design requirements.

Another object of the present invention is to provide a lamp module, which is applied to a backlight device of a liquid crystal display, and which combines a plurality of lamps into a module. When the backlight device is damaged and the lamp tube must be replaced, it is not necessary to take the entire backlight device to a clean room to replace the lamp tube, and the lamp module can be replaced on-site to reduce maintenance delay time.

The object of the present invention is achieved by providing a lamp module, which is applied to a backlight device, comprising: an elastic component, the elastic component has a receiving part, a plug part, a first clamping part and a second A clamping part, the plugging part is arranged between the first clamping part and the second clamping part, the outer edges of the first clamping part and the second clamping part are larger than the outer edge of the plugging part; a lamp tube, the lamp One end of the tube is accommodated in the receiving portion; and a supporting component, the supporting component has a receiving portion, the receiving portion is used to engage the elastic component, and the plug portion of the elastic component is used to engage with the receiving portion of the supporting component When the elastic component engages with the supporting component, the first clamping part and the second clamping part are used to limit the movement of the plug part.

Furthermore, a light tube module of the present invention includes an elastic component, a light tube and a supporting component. The elastic component has a receiving portion, such as a hole, for receiving one end of the lamp tube. The supporting component has a receiving portion, such as a groove, for engaging the elastic component. The elastic component includes a plug part, a first clamping part and a second clamping part. The plug part is disposed between the first clamping part and the second clamping part, and engages with the receiving part of the supporting component.

When the elastic component engages with the support component, the first clamping part and the second clamping part limit the movement of the plug part. The first clamping part has a first thickness, the plug part has a second thickness, and the first thickness is greater than the second thickness. One side of the supporting component has a groove for heat dissipation. The lamp module also includes a heat conduction component arranged in the groove for heat dissipation.

The present invention also provides a backlight device comprising the above lamp module.

The present invention also provides a lamp module, which is applied to a direct-type backlight device, comprising: an elastic component, the elastic component has a hole, a plug part, a first clamping part and a second clamping part, the plug The part is arranged between the first clamping part and the second clamping part, and the outer edges of the first clamping part and the second clamping part are larger than the outer edge of the plug part; a lamp tube, one end of the lamp tube is accommodated in The hole; and a support component, the support component has a groove, the groove is used to engage the plug portion of the elastic component, when the elastic component is engaged with the support component, the first clamping portion and the second clamping portion The two clamping parts are used to limit the movement of the embolism part.

The present invention also provides a backlight device comprising the above lamp module.

Description of drawings

FIG. 1A is a schematic diagram of components of a lamp module according to an embodiment of the present invention;

Fig. 1B is an enlarged view of the elastic component of Fig. 1A;

Figure 1C is an enlarged view of the support assembly of Figure 1A;

FIG. 1D is a schematic diagram showing that the heat conduction component is disposed in the groove of the support component of the lamp module of FIG. 1A;

Fig. 2 is a combined schematic diagram of a lamp module according to an embodiment of the present invention;

FIG. 3 is an exploded schematic diagram of a backlight device including a lamp module of the present invention.

Detailed ways

The invention discloses a lamp module, which is applied to a backlight device of a flat-panel display device. It has a modular feature to simplify the assembly procedure and reduce the assembly cost. In order to make the description of the present invention more detailed and complete, reference may be made to the following description and shown in FIG. 1 to FIG. 3 .

Referring to FIG. 1A , FIG. 1B and FIG. 1C , the lamp module 10 of the present invention is a schematic diagram and a partially enlarged view of each component in an embodiment. The light tube module 10 disclosed in the present invention includes an elastic component 12 , a light tube 14 and a supporting component 16 . The elastic component 12 has a receiving portion 120 , such as a hole, for receiving one end of the lamp tube 12 . The supporting component 16 has a receiving portion 160 , such as a groove, for engaging the elastic component 12 . It should be noted here that, in order to achieve the purpose of positioning the light tube 14 , the size of the receiving portion 120 of the elastic component 12 matches the outer diameter of the light tube 14 . For example, when the outer diameter of the lamp tube is (ψ±d), the inner diameter of the receiving portion 120 of the elastic assembly 12 is (ψ-d), so that the lamp tube 14 can be fixed in the receiving portion 120 of the elastic assembly 12 to achieve positioning The function of the lamp. With such a design, the phenomenon of light leakage or electric leakage caused by the displacement of the lamp tube 14 can be avoided.

In addition, as shown in FIG. 1B , the elastic component 12 includes a plug portion 122 , a first clamping portion 124 and a second clamping portion 126 . The plug part 122 is disposed between the first clamping part 124 and the second clamping part 126 . In this embodiment, the appearance of the elastic component 12 is U-shaped, and the first clamping portion 124 and a second clamping portion 126 have outer edges larger than the plug portion 122, so that the plug portion 122 is shaped like a recessed channel, And it is located between the first and second clamping parts (124 and 126). When the elastic component 12 engages with the support component 16 , the first clamping portion 124 and the second clamping portion 126 are used to limit the movement of the plug portion 122 .

The size of the plug portion 122 is designed to engage with the groove wall 164 of the support assembly 16 . Furthermore, the width W ₁₂₂ and the thickness T ₁₂₂ of the plug portion 122 are related to the width W ₁₆₀ and the thickness T ₁₆₀ of the groove 160 . For example, when the width W ₁₂₂ and thickness T ₁₂₂ of the plugging portion 122 are the same as the width W ₁₆₀ and thickness T ₁₆₀ of the groove 160, the plugging portion 122 It is closely engaged with the groove 160 to prevent the embolism part 122 from moving. The clamping effect of the first clamping portion 124 cooperates with the fixing of the second clamping portion 126, and the first clamping portion 124 has a first thickness T ₁₂₄ , which is greater than the second thickness T ₁₂₂ of the plug portion 122, so that the plug portion 122 and the groove 160 snaps tightly. To design the elastic component 12 with a certain strength, the preferred thickness of the first thickness T 124 of the first holding portion ₁₂₄ is about 1.5 to 2 times of the second thickness T ₁₂₂ of the plug portion 122 .

The elastic component 12 can be made of materials such as rubber, and can be made by injection molding. The elastic component 12 also includes a channel 128 for a wire (not shown) to pass through the elastic component 12 to connect to the light tube 14, so as to achieve functions of wire management and electrical connection. It should be noted here that, in the embodiment, although the shape of the elastic component 12 is U-shaped as an example, it is not limited thereto. The lamp tube 14 is a cold cathode lamp tube (Cold Cathode Fluorescent Lamp or CCFL lamp tube), but the type and shape of the lamp tube are not limited to those described in the embodiments.

Furthermore, one side of the supporting component 16 has a groove 162 for heat dissipation, as shown in FIG. 1C . For example, the heat energy generated by the lamp tube 14 can be transmitted to both ends of the supporting component 16 through the groove 162 to achieve the effect of heat dissipation. In addition, the lamp module 10 of the present invention may further include a heat conducting component 18 of metal material, such as a copper rod, disposed in the groove to help heat dissipation (as shown in FIG. 1D ). It should be noted here that FIG. 1D is used to illustrate the arrangement between the heat conducting component 18 and the groove 162 of the supporting component 16 . Although FIG. 1D does not show that the receiving portion 160 of the supporting component 16 engages with the elastic component 12 , in actual application, the receiving portion 160 of the supporting component 16 engages with the elastic component 12 . In addition, the elastic component 12 can cooperate with the heat conduction component 18 to change the shape of the part of the elastic component 12 opposite to the heat conduction component 18 . For example, to cooperate with the heat conduction component 18 , a groove is also designed on the surface of the opposite elastic component 12 to accommodate the heat conduction component 18 . Alternatively, the shape of the elastic component 12 is designed to engage with the receiving portion 160 of the support component 16 and not block the groove 162 during engagement.

FIG. 2 is a combined schematic diagram of a lamp module 10 according to an embodiment of the present invention, which combines a plurality of lamps 14 into a module, which is applied to a backlight device such as a liquid crystal display. The lamp tube module 10 of the present invention can flexibly increase or decrease the number of lamp tubes 14 according to different design requirements, without additionally manufacturing the frame of the backlight device. For example, when increasing or decreasing the number of lamp tubes 14, it is only necessary to change the number of receiving portions 160 (or grooves) of the support assembly 16, or only a predetermined number of lamp tubes 14 need to be engaged with the pre-selected lamp tubes 14 by using the elastic assembly 12. A certain receiving portion 160 can be used.

In addition, referring to FIG. 3 , the present invention also provides a backlight device 300 , which includes the above-mentioned lamp module 10 . As shown in FIG. 3 , the lamp tubes 14 are integrated into the backlight device 300 in the form of modules, which is more convenient for maintenance than the prior art where the lamp tubes are individually fixed on the frame of the backlight device. That is, when the backlight device 300 is damaged and the lamp tube 14 must be replaced, it is not necessary to take the entire backlight device 300 (including components such as the frame 302 ) to the clean room for disassembly to replace a specific lamp tube 14 . Only the entire lamp module 10 needs to be disassembled and replaced at the user end, which can reduce maintenance delay time.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the claims of the present invention; all other equivalent changes or modifications that do not deviate from the spirit disclosed in the present invention should be included in the appended within the claims.

Claims (18)

1. a fluorescent tube module is applied to a back lighting device, comprising:

One elastic parts, this elastic parts has an incorporating section, an embolism portion, one first holding part and one second holding part, this embolism portion is located between this first holding part and this second holding part, and the outer rim of this first holding part and this second holding part is greater than the outer rim of this embolism portion;

One fluorescent tube, an end of this fluorescent tube is accommodated in this incorporating section, and

One supporting component, this supporting component has a carrier, this carrier is for this elastic parts of engaging, this embolism portion of this elastic parts is used for engaging with this carrier of this supporting component, when this elastic parts engaged with this supporting component, this first holding part and this second holding part were for limiting moving of this embolism portion.

2. fluorescent tube module according to claim 1, wherein this incorporating section is a hole.

3. fluorescent tube module according to claim 1, wherein the carrier of this supporting component comprises a groove.

4. fluorescent tube module according to claim 3, wherein, this embolism portion engages with the groove of this supporting component.

5. fluorescent tube module according to claim 4, wherein this first holding part has one first thickness, and this embolism portion has one second thickness, and this first thickness is greater than this second thickness.

6. fluorescent tube module according to claim 5, wherein this first thickness is about 1.5 to 2 times of this second thickness.

7. fluorescent tube module according to claim 1, wherein this elastic parts comprises a channel, passes this elastic parts for an electric wire and connects this fluorescent tube.

8. fluorescent tube module according to claim 1, wherein a side of this supporting component has a groove, and this groove is in order to heat radiation.

9. fluorescent tube module according to claim 8 also comprises a heat-conductive assembly, and this heat-conductive assembly is arranged in this groove as a radiating subassembly.

10. fluorescent tube module according to claim 9, this heat-conductive assembly are a metal material.

11. fluorescent tube module according to claim 10, this heat-conductive assembly are a copper rod.

12. a back lighting device is characterized in that comprising fluorescent tube module as claimed in claim 1.

13. a fluorescent tube module is applied to a direct-type backlight device, comprising:

One elastic parts, this elastic parts has a hole, an embolism portion, one first holding part and one second holding part, this embolism portion is located between this first holding part and this second holding part, and the outer rim of this first holding part and this second holding part is greater than the outer rim of this embolism portion;

One fluorescent tube, an end of this fluorescent tube is accommodated in this hole; And

One supporting component, this supporting component has a groove, and this groove is for this embolism portion of this elastic parts of engaging, and when this elastic parts engaged with this supporting component, this first holding part and this second holding part were for limiting moving of this embolism portion.

14. fluorescent tube module according to claim 13, wherein this first holding part has one first thickness, and this embolism portion has one second thickness, and this first thickness is greater than this second thickness.

15. fluorescent tube module according to claim 14, wherein this first thickness is about 1.5 to 2 times of this second thickness.

16. fluorescent tube module according to claim 13, wherein this elastic parts comprises a channel, passes this elastic parts for an electric wire and connects this fluorescent tube.

17. fluorescent tube module according to claim 13, wherein a side of this supporting component has a groove, also is provided with the usefulness of a heat-conductive assembly as heat radiation in this groove.

18. a back lighting device is characterized in that comprising fluorescent tube module as claimed in claim 13.

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