CN201126508Y - Liquid crystal display device having a plurality of pixel electrodes - Google Patents

Abstract

The utility model relates to a liquid crystal display device, which is provided with a light emitting module using a light emitting diode; the light-emitting module is composed of a carrier plate and at least one light-emitting diode; the carrier plate uses a flexible bottom layer as a base material, and a heat conduction insulating layer and a conducting layer are sequentially arranged on the flexible bottom layer, and each light emitting diode is arranged on the conducting layer of the carrier plate, so that the heat dissipation efficiency of the whole liquid crystal display device can be increased, and the light emitting module is matched with the frame structure body of the liquid crystal display device to be arranged in a bending way, and a better light source projection effect is obtained.

Description

Liquid crystal display device

technical field

The utility model is related to the improvement of the liquid crystal display device, especially for the improvement of the structure of the light-emitting module in the liquid crystal display device, and aims to provide a liquid crystal display device and its light-emitting module structure with better heat dissipation effect and better light source projection effect.

Background technique

A general liquid crystal display device (Liquid Crystal Display, LCD) is basically composed of two main parts: a liquid crystal panel assembly 10 and a light emitting module 20 as shown in Figure 1; wherein, the liquid crystal panel assembly 10 and the light emitting module 20 are The liquid crystal panel assembly 10 includes a panel 11 and an optical film 12 or a light guide plate.

As for the light-emitting module 20 , a plurality of lamp tubes 21 laid on the bottom plate 31 are used as light-emitting components, so that the light of the lamp tubes 21 can be evenly projected on the panel 11 under the action of the optical mechanism of the optical film 12 . However, since the overall light-emitting module 20 is installed inside the frame 30, and the light-emitting module 20 does not have any heat dissipation mechanism, it cannot cooperate to release the heat source generated by the lamp tube 21, resulting in overheating of the overall liquid crystal display device. In turn, the service life of the liquid crystal display device is affected.

Utility model content

In view of this, the technical problem to be solved by this utility model is to improve the structure of the light-emitting module in the liquid crystal display device, aiming to provide a liquid crystal display device with better heat dissipation performance and better light source projection effect and its light emitting module. Modular structure.

In order to achieve the purpose of the disclosure above, the light-emitting module disclosed in the utility model is composed of a carrier board and at least one light-emitting diode; as for the carrier board, a flexible bottom layer is used as the base material, and the flexible bottom layer is sequentially arranged on the flexible bottom layer. There is a thermally conductive insulating layer and a conductive layer, and each LED is built on the conductive layer of the carrier board, and is connected to the power supply through the conductive layer. Furthermore, the carrier board of the light-emitting module can be pre-set with folding lines or cutting lines, and a solder layer can be further laid under the corresponding flexible bottom layer of the carrier board.

One of the beneficial effects of the present invention is that the overall liquid crystal display device can transmit the heat source generated by the light-emitting diodes to the bottom plate or the frame through the heat-conducting insulating layer of the carrier plate, so it has better heat dissipation performance.

The second beneficial effect of the utility model is that the flexible carrier board can be used to cooperate with the structure such as the frame of the liquid crystal display device to bend, and the light source of the light-emitting diode can be effectively concentrated, so it has a better light projection effect.

The third beneficial effect of the present invention is that the predetermined folding line or cutting line on the carrier board of the light-emitting module can increase the convenience of bending and dividing the light-emitting module.

The fourth beneficial effect of the present invention is that the solder layer under the flexible bottom layer can facilitate the direct adhesion of the whole light-emitting module to the frame structure such as the bottom plate and side frame of the related liquid crystal display device.

Description of drawings

Figure 1 is an exploded view of the structure of a conventional liquid crystal display device;

Fig. 2 is an exploded view of the structure of the liquid crystal display device of the first embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the light emitting module of the first embodiment of the present invention;

Fig. 4 is a plane structure diagram of the light-emitting module of the first embodiment of the present invention;

Fig. 5 is a schematic structural diagram of the light emitting module of the second embodiment of the present invention;

Fig. 6 is a schematic diagram of the configuration state of the light emitting module according to the third embodiment of the present invention;

Fig. 7 is a schematic diagram of the configuration state of the light emitting module of the fourth embodiment of the present invention;

Fig. 8 is a schematic diagram of the configuration state of the light emitting module according to the fifth embodiment of the present invention.

【Description of figure number】

10 LCD panel assembly 11 LCD panel

12 optical film 20 light-emitting module

21 lamps 22 carrier boards

221 flexible bottom layer 222 conductive layer

2221 Line 2222 Insulation Department

223 thermal insulation layer 224 cutting line

225 solder layer 226 fold line

23 light-emitting diodes 231 wires

30 frame 31 bottom plate

32 outer frame 33 side frame

Detailed ways

The features of the utility model can be clearly understood by referring to the detailed description of the drawings and the embodiments.

As shown in FIG. 2 , the liquid crystal display device of the present invention has a liquid crystal panel assembly 10 and a light-emitting module 20 using light-emitting diodes 23 inside a frame 30. The light-emitting module 20 basically consists of a carrier board 22 and at least one Composed of light-emitting diodes 23; please refer to FIG. A thermally conductive insulating layer 223 and a conductive layer 222 are provided, and each LED 23 is constructed on the conductive layer 222 of the carrier 22 .

In practice, the flexible bottom layer 221 can be a flexible structure made of metal materials such as aluminum, copper, iron, stainless steel, etc., and the thickness of the flexible bottom layer is less than or equal to 0.2mm; as for, the conductive layer 222 can be It is fully or partially covered on the heat-conducting insulating layer 223, which has copper-based lines 2221, and an insulating part 2222 made of insulating material is provided between the lines 2221 for fixing the light-emitting diodes 23, and the wires 231 of the light-emitting diodes 23 Then match with the circuit 2221 connected to the conductive layer 22 and form an electrical connection with the circuit 2221 so as to be able to conduct with the power supply through the conductive layer 222 .

Furthermore, the thermally conductive insulating layer 223 is a thermally conductive adhesive or a thermally conductive film, the thermally conductive adhesive can be a double-sided adhesive, and the thermally conductive insulating layer 223 is composed of a conductive layer 222 combined with a flexible bottom layer 221; especially, the overall light-emitting module 20 can be as shown in the figure As shown in 4A, the cutting line 224 or folding line is pre-set on the carrier board 22 to increase the convenience of splitting and bending the light-emitting module 20, and even as shown in FIG. A solder layer 225 is laid under the flexible bottom layer 221 to facilitate the direct adhesion of the whole light-emitting module to related structures.

In the embodiment shown in Fig. 2, the frame 30 of the liquid crystal display device includes a bottom plate 31 and an outer frame 32, and the light source of the liquid crystal display device is relatively from the back of the liquid crystal panel assembly 10; accordingly, the whole light-emitting module 20 can be As shown in FIG. 2 , the whole carrier board 22 is adhered to the bottom plate 31 of the frame 30, and the carrier board 22 can provide the effect of reflecting the light source of the light emitting diode 23; As shown in FIG. 4B , it is bent into a shape like a bottom plate.

Alternatively, as shown in FIG. 6 , the carrier board 22 is cut into several separate strips, and then a plurality of single-strip carrier boards 22 constructed with light emitting diodes 23 are adhered to the bottom plate 31 of the frame 30. When the light emitting module 20 meets When a light emitting diode 23 is faulty or damaged, it is only necessary to replace the single carrier 22 to which the light emitting diode 23 belongs.

Furthermore, in the embodiment shown in FIG. 7, the frame 30 of the liquid crystal display device includes a bottom plate 31, an outer frame 32 and a side frame 33, and the light source of the liquid crystal display device is relatively from the side of the liquid crystal panel assembly 10; The carrier 22 of the overall light-emitting module 20 is based on a flexible bottom layer and has the characteristics of being bendable and foldable. Therefore, as shown in FIGS. The bending configuration can not only meet the design requirements of different light source directions, but also can obtain a better light source projection effect.

It is worth mentioning that during actual operation of the overall light-emitting module 20, the heat source generated by the light-emitting diodes 23 can be released and conducted to the flexible bottom layer 221 through the heat-conducting insulating layer 223 of the carrier plate 22, and can be controlled by the side frame 33 or the bottom plate or the like. The frame structure is released, so it has better heat dissipation performance.

Through the structural design of the carrier board with the flexible bottom layer as the base material in the above-mentioned light-emitting module, it can cooperate with the bending configuration of frame structures such as the bottom plate and side frame of the liquid crystal display device, and the light-emitting diodes can be arranged through the heat-conducting insulating layer of the carrier board. Generating heat source release, indeed providing a light-emitting module with wide applicability and better heat dissipation performance, and a liquid crystal display device structure with better light projection effect, the application for a new patent is filed according to law.

The technical content and technical features of the present utility model have been disclosed above, but those who are familiar with the technology may still make various replacements and modifications based on the disclosure of the utility model without departing from the spirit of the utility model of the present case. Therefore, the protection scope of the present utility model should not be limited to those disclosed in the embodiments, but should include various replacements and modifications that do not deviate from the present utility model, and are covered by the scope of the following patent applications.

Claims (10)

1. A liquid crystal display device, characterized in that a liquid crystal panel assembly and a light-emitting module are constructed inside a frame, and the light-emitting module includes: A carrier board, with a flexible bottom layer as the base material, a thermally conductive insulating layer and a conductive layer are sequentially arranged above the bottom layer, the thermally conductive insulating layer forms the combination of the bottom layer and the conductive layer, and the conductive layer is provided with a plurality of circuits; At least one light emitting diode is built on the conductive layer of the carrier board and electrically connected with the circuit. 2. The liquid crystal display device according to claim 1, wherein an insulating portion made of insulating material for positioning the light-emitting diode is provided between the lines. 3. The liquid crystal display device according to claim 1, wherein the thermally conductive insulating layer is a thermally conductive adhesive or a thermally conductive film, and the thermally conductive adhesive is composed of double-sided adhesive tape. 4. The liquid crystal display device as claimed in claim 1, wherein a cutting line is provided on the carrier. 5. The liquid crystal display device according to claim 1 or 4, characterized in that folding lines are provided on the carrier. 6. The liquid crystal display device according to claim 1, wherein the flexible bottom layer is a structure made of metal material. 7. The liquid crystal display device as claimed in claim 1, wherein the thickness of the flexible bottom layer is less than or equal to 0.2mm. 8 . The liquid crystal display device as claimed in claim 1 , wherein a solder layer is laid on the carrier plate relative to the bottom layer. 9. The liquid crystal display device as claimed in claim 1, wherein the frame comprises a bottom plate and an outer frame; the light-emitting module is constructed on the bottom plate. 10. The liquid crystal display device as claimed in claim 1, wherein the frame comprises a bottom plate, an outer frame and a side frame; the light emitting module is constructed on the side frame.

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