KR100384676B1 - Liquid crystal display device - Google Patents

Abstract

A liquid crystal display device capable of improving the tensile strength of a cable electrically connected to a light source without shortening the length of the light source is provided.

A liquid crystal display device comprising a liquid crystal display element and a backlight unit disposed on a surface opposite to a display surface of the liquid crystal display element, wherein the backlight unit includes electrodes at both ends and irradiates an irradiation light source to the liquid crystal display element. The light source 16, two cables 18 and 19 electrically connected to the electrode 161 of the light source, and a fixing member for improving the tensile strength of at least one of the two cables. The member is provided with a holding portion 31 for holding the light source, a through hole through which one of the two cables passes, and a cable fixing portion 32 which is provided to be orthogonal to the holding portion and integrally formed with the holding portion. It includes.

Description

Liquid crystal display {LIQUID CRYSTAL DISPLAY DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to liquid crystal display devices used in personal computers, workstations, and the like, and more particularly, to an effective technique applied to a backlight unit disposed on the side opposite to the display surface of a liquid crystal display element.

STN (Super Twisted Nematic) type or TFT (Thin Film Transister) liquid crystal display module is widely used as a display device such as a notebook computer.

These liquid crystal display modules are comprised with the liquid crystal display panel in which the drive circuit part was arrange | positioned around, and the backlight unit which irradiates the said liquid crystal display panel.

The backlight unit is configured to guide light irradiated from the light source into the mold away from the light source, for uniformly irradiating light to the entire liquid crystal display panel, and the side of the light guide near the side of the light guide. Therefore, the cold cathode fluorescent lamp, which is a linear light source disposed in parallel with the side surface, the diffusion sheet disposed on the light guide, the lens sheet (also called a prism sheet) disposed on the diffusion sheet, and the cold cathode fluorescent lamp are covered with the light guide. The reflecting sheet which extends and arrange | positions under a sieve is accommodated and comprised.

The cold cathode fluorescent lamp also includes electrodes at both ends, and the backlight unit also includes a cable for applying a driving voltage from the cold cathode fluorescent lamp driving circuit to the electrode of the cold cathode fluorescent lamp.

Such a technique is described in, for example, Japanese Patent Application Laid-Open No. 60-19474 and Japanese Patent Application Laid-Open No. 4-22780.

For example, a cable may be unnecessarily tensioned when the connector for connection with the cold cathode fluorescent lamp driving circuit is connected to the cable, and a predetermined tensile strength is applied to the cable in order to prevent the cable from being cut or the cold cathode fluorescent lamp is destroyed. To have.

In the conventional liquid crystal display module, in order to have a predetermined tensile strength in this cable, a groove is provided in the mold or a part which can be hooked on the mold is fixed to structurally fix the cable.

However, as the periphery of the liquid crystal of the liquid crystal display module becomes narrower and thinner, it is difficult to secure a space where the cable is folded and folded.

For this reason, conventionally, although the length of a cold cathode fluorescent lamp was shortened and the space was secured, there existed a problem that luminance unevenness arises on the display screen of a liquid crystal display panel, and the display quality of a display screen is impaired remarkably.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and an object of the present invention is to provide a liquid crystal display device capable of improving the tensile strength of a cable electrically connected to the light source without shortening the length of the light source. To provide technology.

In addition, another object of the present invention is to provide a technique in which a liquid crystal display device can prevent luminance unevenness from occurring on a display screen of a liquid crystal display element, thereby improving the display quality of the liquid crystal display element.

The above and other objects and novel features of the present invention will be apparent from the description of the present specification and the accompanying drawings.

Among the inventions disclosed herein, a typical outline is briefly described as follows.

That is, the present invention provides a liquid crystal display device comprising a liquid crystal display device and a backlight unit disposed on a surface opposite to the display surface of the liquid crystal display device, wherein the backlight unit includes electrodes at both ends and is connected to the liquid crystal display device. A light source for irradiating irradiated light, two cables electrically connected to electrodes of the light source, a through hole through which at least one of the two cables passes, a fixing member for improving the tensile strength of the cable, and the light source And a holding part integrally formed with the fixing member, wherein the cable is soldered with the light source inside the holding part, and the holding part is provided with a cutting groove.

According to the above means, it is possible to improve the tensile strength of the cable by the fixing member, and the light source does not break up to a force of 1.6 Kg / cm 2 when it is tensioned by applying a force continuously to the cable passing through the fixing member.

As a result, it is not necessary to secure a space for folding the cable as in the related art, and thus it is not necessary to shorten the length of the light source. Therefore, it becomes possible to prevent the luminance unevenness from occurring on the display screen of the liquid crystal display element and to improve the display quality of the display screen.

In the present invention, the fixing member includes a holding part for holding a light source, a through hole through which one of the two cables passes, and a cable which is provided to be orthogonal to the holding part and is integrally formed with the holding part. It includes a fixing part, and silicone rubber is used as a material of the cable fixing part.

Further, in the present invention, the holding portion includes a cutting groove on the side opposite to the side on which the cable fixing portion is installed, thereby facilitating the operation of electrically connecting the light source and the cable.

In addition, the present invention provides a liquid crystal display device comprising a liquid crystal display device and a backlight unit disposed on a surface opposite to the display surface of the liquid crystal display device, wherein the backlight unit includes electrodes at both ends of the liquid crystal display device. A fixing member including a light source for irradiating irradiated light, two cables electrically connected to electrodes of the light source, a through hole through which the two cables pass, and a housing member accommodating the light source, the cable and the fixing member And the fixing member includes a locking means for hanging the fixing member on the housing member.

According to the above means, the fixing member is locked to the housing member by the locking means, so that the tensile strength of the cable can be improved.

As a result, it is not necessary to secure a space for folding the cable as in the related art, and thus it is not necessary to shorten the length of the light source. Therefore, it becomes possible to prevent luminance unevenness from occurring on the display screen of the liquid crystal display element, and to improve the display quality of the display screen.

In addition, the fixing member of the present invention includes a main body portion extending in the same direction as the extending direction of the light source and a first projection portion which is orthogonal to the main body portion and is provided such that a step is formed in the connection portion with the main body portion.

The first protrusion is inserted into the cable outlet provided in the housing member, and the fixing member is locked to the housing member by the step portion between the first protrusion and the main body portion.

In addition, the fixing member of the present invention further includes a second protrusion that is orthogonal to the main body and the first protrusion, and is provided such that a step occurs in a connection portion with the main body.

The fixing member is locked to the frame member by the step portion between the second protrusion portion and the main body portion.

Moreover, in this invention, two cables are integrated by the synthetic resin in the outer side of a 1st projection part, and it becomes possible to improve the tensile strength of a cable by this.

1 is an exploded perspective view showing the basic structure of a TFT type liquid crystal display module to which the present invention is applied.

FIG. 2 is a diagram showing a cross-sectional structure of a main part of a backlight unit of the TFT type liquid crystal display module shown in FIG. 1; FIG.

3 is a diagram showing a schematic configuration of a notebook computer on which a liquid crystal display module is mounted.

4 is a view for explaining a fixing state of the cable of the first embodiment of the present invention.

5 is a view showing the configuration of a fixing member according to a first embodiment of the present invention.

6 is a view showing a state in which the high-voltage side cable is attached to the electrode of the cold cathode fluorescent lamp in Example 1 of the present invention.

The figure which shows an example of the electrode shape of a cold cathode fluorescent lamp in Example 1 of this invention, and an example of the method of processing the core line of the high voltage side cable.

8 is a view for explaining a fixing state of a cable of a conventional liquid crystal display module.

9 is a view for explaining a fixing state of a cable of a conventional liquid crystal display module.

Fig. 10 is a diagram showing the configuration of a fixing member of a TFT type liquid crystal display module according to the second embodiment of the present invention.

FIG. 11 is a view for explaining a step of attaching a high voltage side cable to an electrode of a cold cathode fluorescent lamp in Example 2 of the present invention; FIG.

Fig. 12 is a perspective view showing the structure of a fixing member of a TFT type liquid crystal display module according to the third embodiment of the present invention.

FIG. 13 is a view for explaining a fixing state of a cable of Embodiment 3 of the present invention; FIG.

14 is a view for explaining a fixing state of the cable of the third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

4: frame

9: light guide

14: Mold

16: fluorescent tube

18 high voltage cable

19: GND side cable

30: fixing member

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Incidentally, in the previous drawings for explaining the embodiments, those having the same function are denoted by the same reference numerals, and repeated description thereof will be omitted.

Example 1

[Basic structure of a liquid crystal display module of the TFT method to which the present invention is applied]

1 is an exploded perspective view showing the basic structure of a TFT type liquid crystal display module (LCM) to which the present invention is applied.

The TFT type liquid crystal display module (LCM) shown in FIG. 1 includes a frame 4 made of a metal plate and a liquid crystal display panel [LCD; Liquid crystal display element 5 of the present invention] and a backlight unit.

The liquid crystal display panel 5 overlaps the TFT substrate on which the pixel electrode, the thin film transistor, etc. are formed, and the filter substrate on which the opposing electrode, the color filter, etc. are formed, with a predetermined gap therebetween, to form a frame near the periphery between the two substrates. The two substrates are bonded together by the sealing member provided in the shape, the liquid crystal is sealed and sealed inside the sealing member between the two substrates from the liquid crystal sealing opening provided in a part of the sealing member, and the polarizing plate is bonded to the outside of the both substrates. do.

Here, a plurality of drain drivers and gate drivers made of a semiconductor integrated circuit device (IC) are mounted on the glass substrate of the TFT substrate.

The power supply, display data and control signals are supplied to the drain driver through the flexible printed wiring board 1, and the drive power supply and control signals are supplied to the gate driver through the flexible printed wiring board 2.

These flexible printed wiring boards 1 and 2 are connected to the drive circuit board 3 provided behind the backlight unit.

The backlight unit of the TFT type liquid crystal display module shown in FIG. 1 includes a cold cathode fluorescent lamp 16, a wedge-shaped light guide 9, a diffusion sheet 6, 8, and a lens sheet 7 The reflective sheet 10 is fitted to the mold 14 formed in a frame shape in the order shown in FIG. 1.

The mold 14 is made of polycarbonate or ABS resin, and in Fig. 1, reference numeral 11 denotes a rubber bush, reference numeral 12 denotes a connector, reference numeral 18 denotes a high voltage side cable, reference numeral 19 denotes a GND side cable.

FIG. 2 is a diagram showing a cross-sectional structure of an essential part of a backlight unit of the TFT type liquid crystal display module shown in FIG. 1.

As shown in FIG. 2, the cold cathode fluorescent lamp 16 is arranged parallel to the side of the light guide 9 near the side of the light guide 9 and along the side of the light guide 9.

The light guide 9 guides the light irradiated from the cold cathode fluorescent lamp 16 away from the cold cathode fluorescent lamp 16 to uniformly irradiate light onto the entire liquid crystal display panel.

Here, the light guide body 9 is formed in a shape in which the surface facing the cold cathode fluorescent lamp 16 is wider and the cross section becomes smaller as it is separated from the cold cathode fluorescent lamp 16. The light guide 9 is formed of a synthetic resin plate such as transparent acrylic.

The diffusion sheets 6 and 8 disposed on the light guide are provided for diffusing light from the light guide 9 and two lens sheets 7 arranged between the diffusion sheet 6 and the diffusion sheet 8. ) Is provided to improve luminance.

The reflective sheet 10 having a cross-sectional shape of the cold cathode fluorescent lamp portion having a substantially U-shape and whose inner surface is white or silver extends to the lower side of the light guide 9 while covering the cold cathode fluorescent lamp 16 over almost the entire length. Are arranged.

Thereby, the light radiated in the direction different from the light guide 9 can be condensed on the light guide 9 without leaving.

As this reflective sheet 10, a white polyethylene terephthalate (PET) film of thickness 0.2mm, for example, can be used.

Thus, the liquid crystal display module LCM shown in FIG. 1 is comprised so that the liquid crystal display panel 5 in which the some drain driver and the gate driver are mounted may be accommodated between the frame 4 which has a display window, and a backlight unit.

The area of the display window of the frame 4 constitutes a display area of the liquid crystal display module LCM, and an area other than this display area, that is, an area around the display window of the frame 4 is called a normal frame.

FIG. 3A is a diagram showing a schematic configuration of a notebook computer on which a liquid crystal display module (LCM) is mounted, and FIG. 3B is a schematic outline showing the relationship between the liquid crystal display module, the high voltage side cable 18 and the GND side cable 19. to be.

Fig. 3 shows the configuration of the use state of the notebook computer. In Fig. 3, reference numeral 100 denotes a liquid crystal display module, and reference numeral 110 denotes a high voltage and high frequency drive voltage for lighting the cold cathode fluorescent lamp 16 inside the backlight unit. It is a drive circuit device (inverter circuit device) for lighting supplying the light source.

As shown in Fig. 3, the cold cathode fluorescent lamp 16 in the backlight unit is arranged to be the side of the lower longitudinal direction of the liquid crystal display panel in the state of use of the notebook computer.

For example, as the liquid crystal display panel 5 which has a screen size of 13 inches or more has recently been enlarged in size, the size of a notebook personal computer on which the liquid crystal display module 100 is mounted is reduced in size. It was difficult to arrange the driving circuit device 110 for lighting on the side of the liquid crystal display module.

Therefore, as shown in FIG. 3A, the lighting driver circuit device 110 is disposed near the attachment portion 120 below the liquid crystal display module 100 in the state of use of the notebook computer.

In addition, as shown in FIG. 3A, the high-voltage side cable 18 and the GND-side cable 19 are as shown in FIG. 3B because the lighting driver circuit device 110 is disposed below the liquid crystal display module. It extracts from the lower side of the liquid crystal display module 100. The high voltage side cable 18 and the GND side cable 19 are connected to electrodes provided at both ends of the cold cathode fluorescent lamp 16, and extend to the driving circuit device 110 for lighting to be turned on by the connector 12 for the lighting circuit. Connected to the device 110.

As shown in Fig. 3B, the high voltage side cable 18 and the GND side cable 19 are extracted at the same position, but the extraction position is a high pressure for the purpose of shortening the high voltage side cable 18 in order to reduce noise. It is the electrode vicinity of the cold cathode fluorescent lamp 16 to which the side cable 18 is connected.

The high voltage side cable 18 and the GND side cable 19 come out from the liquid crystal display module 100, and force is applied from the outside when carrying the liquid crystal display module 100 or attaching it to the notebook computer. It's easy.

[Characteristic Structure of Liquid Crystal Display Module of TFT Method of Example 1 of the Present Invention]

4 is a view for explaining the fixing state of the cable of the embodiment of the present invention, Figure 4a is a schematic sectional view, Figure 4b is a view seen from the cable extraction port direction. 4, only the cable extraction part is shown.

As shown in FIG. 3, since the driving circuit device 110 for lighting is disposed below the liquid crystal display module, in this embodiment, as shown in FIG. 4, the high voltage side cable 18 and the GND side cable are shown. 19 is extracted from the lower side of the mold 14 (the lower side in the state of use of the laptop computer).

Therefore, in this embodiment, the cable outlet 25 is provided in a part of the lower side wall of the mold 14, and a recess (or cutout) 26 is provided in a part of the side wall in the horizontal direction of the mold 14. .

And the fixing member 30 for fixing the high voltage side cable 18 is arrange | positioned in this cable outlet 25 and the recessed part 26. As shown in FIG. In FIG. 4, reference numeral 20 denotes an inserter provided in the mold 14.

5 is a view showing the configuration of the fixing member 30 of the present embodiment. FIG. 5A is a front view, FIG. 5B is a side view, and FIG. 5C is a bottom view.

As shown in FIG. 5, the fixing member 30 is comprised from the holding part 31 holding the cold cathode fluorescent lamp 16, and the cable fixing part 32 which fixes the high voltage side cable 18. As shown in FIG.

The holding part 31 has a hole 33 into which the cold cathode fluorescent lamp 16 is inserted, and the cable fixing part 32 has a through hole 34 through which the high pressure side cable 18 passes.

Here, the cable fixing part 32 is installed to be orthogonal to the holding part 31 and is integrally installed with the holding part 31.

In addition, at least the cable fixing part 32 is made of silicone rubber in order to improve the tensile strength of the high-pressure side cable 18.

In addition, in this specification, the tensile strength of the high voltage side cable 18 means the intensity | strength when the high voltage side cable 18 is tensioned in the arrow (A) direction in FIG.

FIG. 6 is a view showing a state in which the high voltage side cable 18 is attached to the electrode of the cold cathode fluorescent lamp 16 in the present embodiment.

As shown in FIG. 6, in this embodiment, the high-voltage side cable 18 is passed through the through hole 34 of the cable fixing part 32, and then the electrode 161 and solder (of the cold cathode fluorescent lamp 16) 162).

In this case, as shown in FIG. 7A, the soldering operation is facilitated by providing the projection 163 on the electrode 161 of the cold cathode fluorescent lamp 16.

Similarly, the core wire 181 of the high voltage side cable 18 is processed, and as shown in FIG. 7B, the brazing operation is facilitated by bending the core wire 181 or forming a ring.

8 and 9 are diagrams for explaining a fixing state of a cable of a conventional liquid crystal display module. FIGS. 8A and 9A are schematic cross-sectional views, and FIGS. 8B and 9B are views viewed from a cable extraction port direction. 8 and 9 also show only the cable extraction section.

In the liquid crystal display module shown in FIG. 8, FIG. 9, the protrusion 141 is provided in the mold 14, the high pressure side cable 18 is hanged on this protrusion 141, and the tensile strength of the high pressure side cable 18 is improved. It was made to be.

However, since the liquid crystal display module shown in FIG. 9 is a narrow liquid crystal display module with a narrow liquid crystal periphery, it is necessary to secure a space (space) surrounding the high voltage side cable 18. Therefore, the cold cathode fluorescent lamp 16 While shortening the length, the corner portion of the light guide 9 is cut.

For this reason, in the liquid crystal display module shown in FIG. 9, luminance unevenness appears in the display image displayed on the liquid crystal display panel 5 by shortening the length of the cold cathode fluorescent lamp 16 and cutting a part of the light guide 9. There existed a fault that it generate | occur | produces and impairs the display quality of the display image of the liquid crystal display panel 5 remarkably.

On the other hand, in this embodiment, as in the liquid crystal display modules shown in Figs. 8 and 9, no space for enclosing the high voltage side cable 18 is required, so that the length of the cold cathode fluorescent lamp 16 can be increased. Since it is not necessary to cut a part of the light guide 9, it becomes possible to prevent the occurrence of luminance unevenness in the display image displayed on the liquid crystal display panel 5.

In addition, in the present embodiment, since the cable fixing part 32 is made of silicone rubber, the tensile strength of the high pressure side cable 18 can be improved.

In the present embodiment, the cold cathode fluorescent lamp 16 is not destroyed up to a force of 1.6 Kg / cm 2 when tension is applied to the high voltage side cable 18 continuously in the state shown in FIG. 4.

In addition, the material of the cable fixing | fixed part 32 is not limited to silicone rubber, Any thing may be used as long as it can improve the tensile strength of the high voltage side cable 18. As shown in FIG.

For example, when silicone rubber is used for the outer shell as the high pressure side cable 18, it is also possible to use a material such as a synthetic resin or ceramic as the cable fixing part 32.

Moreover, by making the outer diameter of the high voltage side cable 18 smaller than the diameter of the through-hole 34 of the cable fixing part 32, the tensile strength of the high voltage side cable 18 can be improved further.

In addition, although the case where the holding | maintenance part 31 and the cable fixing | fixed part 32 were formed integrally was demonstrated in the said description, these holding | maintenance part 31 and the cable fixing | fixed part 32 may respectively be independent.

Example 2

10 is a view showing the configuration of a fixing member of a TFT type liquid crystal display module (LCM) according to a second embodiment of the present invention. FIG. 10A is a front view, FIG. 10B is a side view, FIG. 10C is a bottom view, and FIG. 10D is a plan view. to be.

As shown in FIG. 10, the fixing member 30 of the present embodiment includes a transmission groove 35 on the side opposite to the side where the cable fixing portion 32 of the holding portion 31 is installed. There is a difference from the fixing member 30 of 1.

FIG. 11 is a view for explaining a step of attaching the high voltage side cable 18 to the electrode of the cold cathode fluorescent lamp 16 in the present embodiment.

As shown in FIG. 11, in this embodiment, the high-pressure side cable 18 is passed through the through hole 34 of the cable fixing part 32, and then from the cutting groove 35 of the holding part 31 to the holding part. The core wire 181 of the high voltage side cable 18 is soldered by the electrode 161 and the solder 162 of the cold cathode fluorescent lamp 16 in this state.

As described above, in this embodiment, the core line 181 of the high voltage side cable 18 and the electrode 161 and the soldering operation of the cold cathode fluorescent lamp 16 are much easier than in the first embodiment.

In addition, similarly to the first embodiment, the projection 163 is provided on the electrode 161 of the cold cathode fluorescent lamp 16, or the core wire 181 of the high-voltage side cable 18 is processed to form the core wire 181. Of course, the soldering operation is facilitated by bending or making a ring.

Example 3

In the TFT type liquid crystal display module according to the third embodiment of the present invention, when the high voltage side cable 18 or the GND side cable 19 is tensioned, the cable is cut or the cold cathode fluorescent lamp is fixed by the fixing member 40 having the locking means. 16) to prevent destruction.

12 is a perspective view showing the structure of a fixing member of a liquid crystal display module (LCM) of a TFT system according to a third embodiment of the present invention.

As shown in FIG. 12, the fixing member 40 of this embodiment is orthogonal to the main body portion 41 and the main body portion 41 extending in the same direction as the extending direction of the cold cathode fluorescent lamp 16 and the main body portion 41. ) And the second protrusion 42 which is provided so that a step is formed in the connection portion with the main body portion 41 and the first protrusion 42, and is provided so that a step is formed in the connection portion with the main body portion 41. It consists of 43.

Here, the high voltage side cable 18 passes through the first protrusion 42 and the main body 41 in a straight line, and is then electrically connected to one electrode 161 of the cold cathode fluorescent lamp 16.

In addition, the GND-side cable 19 penetrates through the first protrusion 42, and then penetrates to one end of the main body 41 in the extending direction of the main body 41, and the other side of the cold cathode fluorescent lamp 16 It is electrically connected with an electrode (not shown).

Here, the fixing member 40 is formed integrally with a synthetic resin or the like.

13 and 14 are views for explaining the fixing state of the cable of the present embodiment, Figure 13 is a schematic cross-sectional view, Figure 14 is a view seen from the cable extraction port direction.

13 and 14 show only the cable extraction section.

As shown in FIG. 13, the first protrusion 42 is inserted into the cable outlet 25 provided in the mold 14.

As is apparent from FIG. 13, when the high voltage side cable 18 or the GND side cable 19 is tensioned in the present embodiment, the fixing member 40 is formed by the stepped portion between the first protrusion 42 and the main body 41. ) Is locked to the mold 14 so that the force is dispersed in the mold 14.

In addition, as shown in FIG. 14, when the high voltage side cable 18 or the GND side cable 19 is tensioned in the present embodiment, the fixing member is formed by the stepped portion between the second protrusion 43 and the main body portion 41. 40 is locked to frame 4 so that the force is distributed to frame 4.

Therefore, in this embodiment, it is possible to prevent the cable break or the breakdown of the cold cathode fluorescent lamp 16 when the high voltage side cable 18 or the GND side cable 19 is tensioned.

In general, when the high voltage side cable 18 or the GND side cable 19 is tensioned, the high pressure side cable 18 is weak to tension, but in the present embodiment, the high pressure side cable 18 and the GND side cable ( 19) is integrated by the synthetic resin 50 on the outside of the first protrusion 42.

Therefore, in this embodiment, even if only the high voltage side cable 18 is tensioned, the tensile strength can be improved by both the high voltage side cable 18 and the GND side cable 19.

In this embodiment, the rubber bush 11 shown in FIG. 13 may be integrated with the fixing member 40.

In addition, as the fixing method between the high voltage side cable 18 and the electrode 161 of the cold cathode fluorescent lamp 16, the core line 181 of the high voltage side cable 18 is replaced with the cold cathode fluorescent lamp ( The electrode 161 and the solder 162 of 16 may be soldered.

In the present embodiment, the embodiments in which the present invention is applied to the liquid crystal display module of the TFT type have been mainly described. However, the present invention is not limited thereto, and the present invention can be applied to the liquid crystal display module of the STN type.

As mentioned above, although the invention made by this inventor was demonstrated concretely based on the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

When the effect obtained by the typical thing of the invention disclosed in this application is demonstrated briefly, it is as follows.

(1) According to this invention, it becomes possible to improve the tensile strength of the cable electrically connected to a light source, without shortening the length of a light source.

(2) According to the present invention, it is possible to prevent the occurrence of luminance unevenness on the display screen of the liquid crystal display element and to improve the display quality of the liquid crystal display element.

Claims (10)

Liquid crystal display device, A backlight unit disposed on a rear surface of the liquid crystal display device; A light source disposed in the backlight unit, Two cables electrically connected to the electrodes of the light source, A through hole through which at least one of the two cables passes; A fixing member of the cable provided in the through hole, and A holding part which holds the light source and is integrally formed with the fixing member, And the cable is soldered with the light source inside the holding portion, and the holding portion is provided with a cutting groove. A liquid crystal display device having a display surface and a back surface opposite to the display surface, A backlight unit disposed on a rear surface of the liquid crystal display device; A fluorescent tube installed in the backlight unit, Two cables electrically connected to the electrodes of the fluorescent tube, and A fixing member for improving the tensile strength of one of the two cables, The fixing member includes a holding part for holding the end of the fluorescent tube, a through hole through which one of the two cables passes, and a cable fixing part which is provided to be orthogonal to the holding part and integrally formed with the holding part. Liquid crystal display comprising a. The method according to claim 1 or 2, The diameter of the cable is smaller than the diameter of the through hole of the fixing member. The method according to claim 1 or 2, And the fixing member comprises silicone rubber. Liquid crystal display device, A backlight unit disposed on a surface opposite to a display surface of the liquid crystal display device; A light source mounted on the backlight unit, Electrodes provided at both ends of the light source, Two cables electrically connected to the electrodes, and A fixing member for improving the tensile strength of the two cables, The fixing member includes a holding part for holding the light source, a through hole through which the two cables pass, and a cable fixing part which is provided to be orthogonal to the holding part and is integrally formed with the holding part, And the light source is not destroyed when the cable is continuously tensioned with a force of 1.6 kg weight / cm 2. The method of claim 5, The holding part includes a cutting groove on a side opposite to the side on which the cable fixing part is installed. Liquid crystal display device, A backlight unit disposed on a rear surface of the liquid crystal display device; A light source installed in the backlight unit, A cable electrically connected to an electrode of the light source, A fixing member including a through hole through which the cable passes; An accommodation member accommodating the light source, the cable, and the fixing member; And a locking means provided in the fixing member for locking the fixing member and the storage member. A liquid crystal display device comprising a liquid crystal display element and a backlight unit disposed on a surface opposite to a display surface of the liquid crystal display element. The backlight unit includes a line light source including electrodes at both ends, two cables electrically connected to electrodes of the line light source, a fixing member including a through hole through which the two cables pass, and the line light source. And an accommodating member accommodating the cable and the fixing member, The fixing member includes a main body portion extending in the same direction as the extending direction of the line light source, and a first projection portion which is orthogonal to the main body portion and is provided to cause a step in a connection portion with the main body portion, One of the two cables passes through the first protrusion and the main body in a straight line and is electrically connected to an electrode of one side of the light source. The other one of the two cables passes through the first protrusion, and then penetrates to one end of the main body in the extending direction of the main body to be electrically connected to the other electrode of the light source. And the first protrusion is inserted into a cable outlet provided in the accommodating member, and the fixing member is locked to the accommodating member by a step portion between the first protrusion and the main body. The method of claim 8, A frame member covering the liquid crystal display element and the storage member and having a sidewall around the liquid crystal display element; The fixing member may include a second protrusion that is orthogonal to the main body and the first protrusion, and is provided such that a step is formed in a connection portion with the main body. And the fixing member is locked to the frame member by the stepped portion between the second protrusion and the main body portion. The method according to claim 8 or 9, The two cables are integrated by a synthetic resin on the outside of the first projection.