KR20120113563A - Display device - Google Patents

Abstract

PURPOSE: A display device is provided to prevent light emitted from a light source from being concentratedly incident on a portion of a light converting member. CONSTITUTION: Light emitted from a light source is incident onto a light guide plate(200). A light converting member is placed between the light source and the light guide plate. A separation member is placed between the light source and the light converting member. The width of the separation member is about 200 micrometers to 2.5 millimeters. The separation member is closely attached to the light converting member and the light source.

Description

Display device {DISPLAY DEVICE}

The embodiment relates to a display device.

Light emitting diodes (LEDs) are semiconductor devices that convert electricity into ultraviolet rays, visible rays, and infrared rays by using the characteristics of compound semiconductors. They are mainly used in home appliances, remote controllers, and large electric sign boards.

The high-intensity LED light source is used as an illumination light. It has high energy efficiency, long life and low replacement cost. It is resistant to vibration and shock, and it does not require the use of toxic substances such as mercury. It is replacing incandescent lamps and fluorescent lamps.

Also, the LED is very advantageous as a light source such as a medium and large-sized LCD TV and a monitor. Compared to CCFL (Cold Cathode Fluorescent Lamp), which is mainly used in LCD (Liquid Crystal Display), it has excellent color purity, low power consumption, and easy miniaturization, Is in progress.

Embodiments provide a display device having improved lifetime and durability.

A display device according to an embodiment includes a light source; A light guide plate on which light emitted from the light source is incident; A light conversion member interposed between the light source and the light guide plate; And a spacer disposed between the light source and the light conversion member.

In one embodiment, a display device includes: a light guide plate; A light source disposed on one side of the light guide plate; And a light conversion member disposed inside a groove or a hole formed in the light guide plate.

The display device according to the embodiment includes a spacer member. By the spacer, the light source and the light conversion member are spaced apart from each other. Accordingly, the light source and the light conversion member are sufficiently spaced apart, and the light emitted from the light source is sufficiently diffused to be incident on the light conversion member.

Accordingly, the display device according to the embodiment can prevent the light emitted from the light source from being concentrated on a portion of the light conversion member. As a result, since the display device according to the exemplary embodiment injects light evenly into the light conversion member, it is possible to prevent denaturation of the light conversion particles in the light conversion member generated by the concentrated light.

Thus, the display device according to the embodiment can have improved lifespan and durability.

1 is an exploded perspective view of a liquid crystal display according to a first embodiment.
FIG. 2 is a cross-sectional view illustrating a cross section taken along AA ′ in FIG. 1.
3 is a cross-sectional view showing one cross section of the light conversion member.
4 is a cross-sectional view illustrating a light emitting diode, a spacer, a light conversion member, and a light guide plate.
FIG. 5 is a cross-sectional view illustrating a light emitting diode, an adhesion member, a light conversion member, and a light guide plate according to a second embodiment.
6 and 7 illustrate a process of forming the contact member according to the second embodiment.
8 is a view showing a light emitting diode, a light conversion member, and a light guide plate according to the third embodiment.
9 is a sectional view showing a cross section of the light emitting diode, the light conversion member and the light guide plate according to the third embodiment.
10 is a view showing a light emitting diode, a light conversion member, and a light guide plate according to the fourth embodiment.
FIG. 11 is a cross-sectional view of a light emitting diode, a light conversion member, and a light guide plate according to the fourth embodiment.

In the description of the embodiments, it is described that each substrate, frame, sheet, layer or pattern is formed "on" or "under" each substrate, frame, sheet, In this case, "on" and "under " all include being formed either directly or indirectly through another element. In addition, the upper or lower reference of each component is described with reference to the drawings. The size of each component in the drawings may be exaggerated for the sake of explanation and does not mean the size actually applied.

1 is an exploded perspective view showing a liquid crystal display device according to a first embodiment. FIG. 2 is a cross-sectional view illustrating a cross section taken along line AA ′ in FIG. 1. 3 is a cross-sectional view showing one cross section of the light conversion member. 4 is a cross-sectional view illustrating a light emitting diode, a spacer, a light conversion member, and a light guide plate.

1 to 5, the liquid crystal display according to the embodiment includes a mold frame 10, a backlight assembly 20, and a liquid crystal panel 30.

The mold frame 10 receives the backlight assembly 20 and the liquid crystal panel 30. The mold frame 10 has a rectangular frame shape. Examples of the material used for the mold frame 10 include plastic or reinforced plastic.

In addition, a chassis supporting the mold frame 10 and supporting the backlight assembly 20 may be disposed below the mold frame 10. The chassis may be disposed on a side surface of the mold frame 10.

The backlight assembly 20 is disposed inside the mold frame 10 and emits light toward the liquid crystal panel 30. The backlight assembly 20 may include a reflective sheet 100, a light guide plate 200, a light emitting diode 300, a light conversion member 400, a spacer 210, a plurality of optical sheets 500, and a flexible printed circuit board ( flexible printed circuit board (FPCB) 600.

The reflective sheet 100 reflects light emitted from the light emitting diode 300 upward.

The light guide plate 200 is disposed on the reflective sheet 100, receives light emitted from the light emitting diodes 300, and emits light upward through reflection, refraction, and scattering. The light guide plate 200 is a light guide member for guiding light emitted from the light emitting diodes 300.

The light guide plate 200 includes an incident surface facing the light emitting diode 300. That is, one side of the light guide plate 200 facing the light emitting diode 300 is an incident surface.

The light emitting diodes 300 are disposed on side surfaces of the light guide plate 200. More specifically, the light emitting diode 300 is disposed on the incident surface.

The light emitting diode 300 is a light source for generating light. In more detail, the light emitting diodes 300 emit light toward the light conversion member 400.

The light emitting diodes 300 may be blue light emitting diodes 300 for generating blue light or UV light emitting diodes 300 for generating ultraviolet light. That is, the light emitting diodes 300 may generate blue light having a wavelength band between about 430 nm and about 470 nm or ultraviolet rays having a wavelength band between about 300 nm and about 400 nm.

The light emitting diode 300 is mounted on the flexible printed circuit board 600. The light emitting diode 300 is disposed under the flexible printed circuit board 600. The light emitting diode 300 is driven by receiving a drive signal through the flexible printed circuit board 600.

The light conversion member 400 is interposed between the light emitting diode 300 and the light guide plate 200. In more detail, the light conversion member 400 is interposed between the spacer 210 and the light guide plate 200.

As shown in FIG. 4, the light conversion member 400 is adhered to the side surface of the light guide plate 200. More specifically, the light conversion member 400 is attached to the incident surface of the light guide plate 200. In addition, the light conversion member 400 may be attached to the spacer 210.

That is, the light conversion member 400 may be attached to the light guide plate 200 by the first adhesion member 301, and may be attached to the spacer 210 by the second adhesion member 302. The first adhesion member 301 may be in close contact with the light conversion member 400 and the light guide plate 200. In addition, the first adhesion member 301 may be in close contact with the light conversion member 400 and the spacer 210.

In addition, the light emitting diodes 300 may be attached to the spacer 210. In this case, a third contact member 303 may be interposed between the light emitting diodes 300 and the spacer 210. The third adhesion member 303 may be in close contact with the light emitting diodes 300 and the spacer 210.

The light conversion member 400 receives the light emitted from the light emitting diode 300 and converts the wavelength. For example, the light conversion member 400 may convert blue light emitted from the light emitting diode 300 into green light and red light. That is, the light conversion member 400 converts a part of the blue light into green light having a wavelength band of about 520 nm to about 560 nm, and the other part of the blue light has a wavelength band of about 630 nm to about 660 nm. Can be converted to red light.

The light conversion member 400 may convert ultraviolet light emitted from the light emitting diode 300 into blue light, green light, and red light. That is, the light conversion member 400 converts a part of the ultraviolet ray into blue light having a wavelength range of about 430 nm to about 470 nm, and converts the other part of the ultraviolet light to a light having a wavelength range of about 520 nm to about 560 nm Green light, and another part of the ultraviolet light into red light having a wavelength band between about 630 nm and about 660 nm.

Accordingly, the light passing through the light conversion member 400 and the light converted by the light conversion member 400 can form white light. That is, the blue light, the green light, and the red light may be combined, and the white light may be incident on the light guide plate 200.

As shown in FIGS. 2 and 3, the light conversion member 400 includes a tube 410, a sealing member 420, a plurality of light conversion particles 430, and a matrix 440.

The tube 410 accommodates the sealing member 420, the light conversion particles 430, and the matrix 440. That is, the tube 410 is a container for receiving the sealing member 420, the light conversion particles 430, and the matrix 440. In addition, the tube 410 has a shape elongated in one direction.

The tube 410 may have the shape of a rectangular tube 410. That is, the cross section perpendicular to the longitudinal direction of the tube 410 may have a rectangular shape. Further, the width of the tube 410 may be about 0.6 mm, and the height of the tube 410 may be about 0.2 mm. That is, the tube 410 may be a capillary tube.

The tube 410 is transparent. Examples of the material used for the tube 410 include glass and the like. That is, the tube 410 may be a glass capillary tube.

The sealing member 420 is disposed inside the tube 410. The sealing member 420 is disposed at the end of the tube 410. The sealing member 420 seals the inside of the tube 410. The sealing member 420 may include an epoxy resin.

The photo-conversion particles 430 are disposed inside the tube 410. In more detail, the light conversion particles 430 are uniformly dispersed in the matrix 440, and the matrix 440 is disposed inside the tube 410.

The photoconversion particles 430 convert the wavelength of the light emitted from the light emitting diode 300. The photoconversion particles 430 receive the light emitted from the light emitting diode 300 and convert the wavelength. For example, the light conversion particles 430 may convert blue light emitted from the light emitting diodes 300 into green light and red light. That is, some of the light conversion particles 430 convert the blue light into green light having a wavelength band between about 520 nm and about 560 nm, and another part of the light conversion particles 430 converts the blue light about 630. It can be converted into red light having a wavelength band between nm and about 660 nm.

Alternatively, the light conversion particles 430 may convert ultraviolet light emitted from the light emitting diodes 300 into blue light, green light, and red light. That is, some of the light conversion particles 430 convert the ultraviolet light into blue light having a wavelength band between about 430 nm and about 470 nm, and another part of the light conversion particles 430 converts the ultraviolet light to about 520. It can be converted into green light having a wavelength band between nm and about 560 nm. In addition, another portion of the light conversion particles 430 may convert the ultraviolet light into red light having a wavelength band between about 630 nm and about 660 nm.

That is, when the light emitting diodes 300 are the blue light emitting diodes 300 that generate the blue light, the light conversion particles 430 for converting the blue light into the green light and the red light may be used. Alternatively, when the light emitting diodes 300 are UV light emitting diodes 300 that generate ultraviolet rays, light conversion particles 430 that convert ultraviolet rays into blue light, green light, and red light may be used.

The photoconversion particles 430 may be a plurality of quantum dots (QDs). The quantum dot may include a core nanocrystal and a shell nanocrystal surrounding the core nanocrystal. In addition, the quantum dot may include an organic ligand bound to the shell nanocrystal. In addition, the quantum dot may include an organic coating layer surrounding the shell nanocrystals.

The shell nanocrystals may be formed of two or more layers. The shell nanocrystals are formed on the surface of the core nanocrystals. The quantum dot may convert the wavelength of the light incident on the core core crystal into a long wavelength through the shell nanocrystals forming the shell layer and increase the light efficiency.

The quantum dot may include at least one of a group II compound semiconductor, a group III compound semiconductor, a group V compound semiconductor, and a group VI compound semiconductor. More specifically, the core nanocrystals may include Cdse, InGaP, CdTe, CdS, ZnSe, ZnTe, ZnS, HgTe or HgS. In addition, the shell nanocrystals may include CuZnS, CdSe, CdTe, CdS, ZnSe, ZnTe, ZnS, HgTe or HgS. The diameter of the quantum dot may be 1 nm to 10 nm.

The wavelength of light emitted from the quantum dots can be controlled by the size of the quantum dots or the molar ratio of the molecular cluster compound and the nanoparticle precursor in the synthesis process. The organic ligand may include pyridine, mercapto alcohol, thiol, phosphine, phosphine oxide, and the like. The organic ligands serve to stabilize unstable quantum dots after synthesis. After synthesis, a dangling bond is formed on the outer periphery, and the quantum dots may become unstable due to the dangling bonds. However, one end of the organic ligand is in an unbonded state, and one end of the unbound organic ligand bonds with the dangling bond, thereby stabilizing the quantum dot.

Particularly, when the quantum dot has a size smaller than the Bohr radius of an exciton formed by electrons and holes excited by light, electricity or the like, a quantum confinement effect is generated to have a staggering energy level and an energy gap The size of the image is changed. Further, the charge is confined within the quantum dots, so that it has a high luminous efficiency.

Unlike general fluorescent dyes, the quantum dots vary in fluorescence wavelength depending on the particle size. That is, as the size of the particle becomes smaller, it emits light having a shorter wavelength, and the particle size can be adjusted to produce fluorescence in a visible light region of a desired wavelength. In addition, since the extinction coefficient is 100 to 1000 times higher than that of a general dye, and the quantum yield is also high, it produces very high fluorescence.

The quantum dot can be synthesized by a chemical wet process. Here, the chemical wet method is a method of growing particles by adding a precursor material to an organic solvent, and the quantum dots can be synthesized by a chemical wet method.

The matrix 440 surrounds the light conversion particles 430. That is, the matrix 440 uniformly disperses the light conversion particles 430 therein. The matrix 440 may be composed of a polymer. The matrix 440 is transparent. That is, the matrix 440 may be formed of a transparent polymer.

The matrix 440 is disposed inside the tube 410. That is, the matrix 440 is filled inside the tube 410 as a whole. The matrix 440 may be in close contact with the inner surface of the tube 410.

An air layer is formed between the sealing member 420 and the matrix 440. The air layer 450 is filled with nitrogen. The air layer 450 performs a buffer function between the sealing member 420 and the matrix 440.

The light conversion member 400 may be formed by the following method.

First, the light conversion particles 430 are uniformly dispersed in a resin composition. The said resin composition is transparent. The resin composition may have photocurability.

Thereafter, the inside of the tube 410 on which the scattering pattern 411 is formed is depressurized, and the inlet of the tube 410 is immersed in the resin composition in which the light conversion particles 430 are dispersed, and the pressure around them is raised. . Accordingly, the resin composition in which the light conversion particles 430 are dispersed is introduced into the tube 410.

Thereafter, a part of the resin composition introduced into the tube 410 is removed, and the inlet portion of the tube 410 is emptied.

Thereafter, the resin composition introduced into the tube 410 is cured by ultraviolet rays, and the matrix 440 is formed.

Thereafter, the epoxy resin composition is introduced into the inlet portion of the tube 410. Thereafter, the introduced epoxy resin composition is cured, and the sealing member 420 is formed. The process of forming the sealing member 420 is performed in a nitrogen atmosphere, and thus, an air layer 450 including nitrogen may be formed between the sealing member 420 and the matrix 440.

As shown in FIG. 4, the spacer 210 is disposed between the light emitting diodes 300 and the light conversion member 400. The spacer 210 is a spacer that separates the light conversion member 400 from the light emitting diode 300.

That is, the distance between the light emitting diodes 300 and the light conversion member 400 may be wider than the width W of the spacer 210. For example, the width W of the spacer 210 may be about 200 μm to about 2.5 mm. In more detail, the width W of the spacer 210 may be about 600 μm to about 2.5 mm.

The height H of the spacer 210 may be substantially the same as the thickness T of the light guide plate 200. In addition, the spacer 210 is transparent. Examples of the material used as the spacer 210 may include a transparent polymer or glass. In addition, the refractive index of the spacer 210 may correspond to the refractive index of the light guide plate 200. That is, the refractive index of the spacer 210 may be substantially the same as the refractive index of the light guide plate 200.

The optical sheets 500 are disposed on the light guide plate 200. The optical sheets 500 improve the characteristics of light passing therethrough.

The flexible printed circuit board 600 is electrically connected to the light emitting diode 300. The light emitting diode 300 can be mounted. The flexible printed circuit board 600 is a flexible printed circuit board, and is disposed inside the mold frame 10. The flexible printed circuit board 600 is disposed on the light guide plate 200.

The flexible printed circuit board may be attached to the light guide plate 200. That is, a double-sided tape may be interposed between the flexible printed circuit board and the light guide plate 200, and the flexible printed circuit board may be adhered to the light guide plate 200.

The mold frame 10 and the backlight assembly 20 constitute a backlight unit. That is, the backlight unit includes the mold frame 10 and the backlight assembly 20.

The liquid crystal panel 30 is disposed inside the mold frame 10 and disposed on the optical sheets 500.

The liquid crystal panel 30 displays an image by adjusting the intensity of light passing through the liquid crystal panel 30. That is, the liquid crystal panel 300 is a display panel for displaying an image. The liquid crystal panel 30 includes a TFT substrate, a color filter substrate, a liquid crystal layer interposed between the two substrates, and polarizing filters.

As described above, the light emitting diodes 300 and the light conversion member 400 are spaced apart from each other by the spacer 210. Accordingly, the light emitting diodes 300 and the light conversion member 400 may be sufficiently spaced apart from each other, and the light emitted from the light emitting diodes 300 may be sufficiently diffused to be incident on the light conversion member 400. .

Accordingly, the liquid crystal display according to the embodiment may prevent the light emitted from the light emitting diodes 300 from being concentrated on a part of the light conversion member 400. As a result, the liquid crystal display according to the exemplary embodiment injects light evenly into the light conversion member 400, thereby preventing degeneration of the light conversion particles generated by the concentrated light.

That is, in the liquid crystal display according to the embodiment, light is concentrated on only some of the light conversion particles, thereby preventing the light conversion particles from deteriorating.

In addition, the spacer 210 may reinforce the strength of the light conversion member 400. That is, the spacer 210 may sandwich the light conversion member 400 together with the light guide plate 200 to protect the light conversion member 400. In particular, when the tube 410 is formed of glass, it is easily broken. In this case, since the spacer 210 protects the tube 410, the liquid crystal display according to the exemplary embodiment may have improved strength.

Thus, the display device according to the embodiment can have improved lifespan and durability.

5 is a cross-sectional view showing a light emitting diode, a fourth contact member, a light conversion member, and a light guide plate according to the second embodiment. 6 and 7 illustrate a process of forming the contact member according to the second embodiment. In the description of the present embodiment, the description of the liquid crystal display device is described above, and the fourth contact member will be further described. The description of the foregoing embodiment may be essentially combined with the description of the present embodiment, except for the changed part.

5 to 7, a fourth contact member 304 is interposed between the light emitting diodes 300 and the light conversion member 400.

The fourth adhesion member 304 is in close contact with the light emitting diodes 300 and the light conversion member 400. In addition, the fourth adhesion member 304 spaces the light emitting diodes 300 and the light conversion member 400 from each other. The width W4 of the fourth contact member 304 is greater than the width W1 of the first contact member 301.

For example, the width W4 of the fourth contact member 304 may be about 200 μm to about 2.5 mm. In more detail, the width W4 of the fourth contact member 304 may be about 600 μm to about 2.5 mm.

Accordingly, the fourth adhesion member 304 closely adheres the light emitting diodes 300 to the light conversion member 400, and simultaneously spaces the light emitting diodes 300 and the light conversion member 400 from each other. Spaced apart.

6 and 7, the fourth contact member 304 may be formed by the following method.

First, the light emitting diodes 300 and the light conversion member 400 are spaced apart from each other at a desired interval. In this case, an interval between the light emitting diodes 300 and the light conversion member 400 may be about 200 μm to about 2.5 mm. In more detail, the distance between the light emitting diodes 300 and the light conversion member 400 may be about 600 μm to about 2.5 mm.

Thereafter, as shown in FIG. 6, a photocurable resin composition 305 is injected between the light emitting diodes 300 and the light conversion member 400. The photocurable resin composition 305 may include an epoxy resin.

Subsequently, as illustrated in FIG. 7, ultraviolet rays are irradiated to the injected photocurable resin composition 305, the injected photocurable resin composition 305 is cured, and the fourth adhesion member 304 is formed. do.

As such, the distance between the light emitting diodes 300 and the light conversion member 400 is increased by the fourth adhesion member 304 as desired, and the liquid crystal display according to the embodiment may have improved lifespan and durability. have.

In addition, the liquid crystal display according to the present exemplary embodiment may increase the distance between the light emitting diodes 300 and the light conversion member 400 without using an additional member such as the spacer 210.

8 is a view showing a light emitting diode, a light conversion member, and a light guide plate according to the third embodiment. 9 is a sectional view showing a cross section of the light emitting diode, the light conversion member and the light guide plate according to the third embodiment. In the description of the present embodiment, reference is made to the above description of the liquid crystal display devices, and the light guide plate will be further described. The description of the foregoing embodiments may be essentially combined with the description of the present embodiment, except for the changed part.

8 and 9, a groove 201 is formed in the light guide plate 200. The groove 201 may be formed on an upper surface of the light guide plate 200. The groove 201 may have a shape corresponding to the light conversion member 400.

That is, the depth of the groove 201 may correspond to the height of the light conversion member 400. In addition, the width of the groove 201 may correspond to the width of the light conversion member 400. Alternatively, the depth of the groove 201 may be greater than the height of the light conversion member 400, and the width of the groove 201 may be greater than the width of the light conversion member 400.

In addition, the light guide plate 200 may include a light guide part 220, a spacer 230, and a first support part 240.

The light guide unit 220 guides the light converted by the light conversion member 400 and the light passing through the light conversion member 400 and emits upward. That is, the light guide unit 220 reflects, refracts, and scatters the incident light, and emits the light upward through the upper surface.

In addition, a part of the inner side surface of the groove is the incident surface of the light guide portion 220.

The spacer 230 is disposed between the light emitting diodes 300 and the light conversion member 400. The spacer 230 spaces the light emitting diodes 300 and the light conversion member 400 from each other.

That is, the distance between the light emitting diodes 300 and the light conversion member 400 may be wider than the width W5 of the spacer 230. For example, the width W5 of the spacer 230 may be about 200 μm to about 2.5 mm. In more detail, the width W5 of the spacer 230 may be about 600 μm to about 2.5 mm.

The first support part 240 extends from the spacer part 230 to the light guide part 220. The first support part 240 is disposed below the light conversion member 400. In addition, the first support part 240 supports the light conversion member 400.

The first support part 240 constitutes a bottom of the groove. The light guide part 220, the spacer 230, and the first support part 240 are integrally formed. That is, the light guide part 220, the spacer 230, and the first support part 240 may be formed of the same material.

The light conversion member 400 is disposed inside the groove. That is, the light conversion member 400 is inserted into the groove.

In addition, a fifth contact member may be filled in the groove. That is, the fifth contact member may be a filling member filled in the groove as a whole.

For example, the fifth contact member may be interposed between the light conversion member 400 and the inner surface of the groove. In addition, the fifth contact member may be in close contact with the light conversion member 400 and may be in close contact with an inner surface of the groove.

In order to form the fifth contact member, after the light conversion member 400 is inserted into the groove, a photocurable resin composition may be injected into the groove. Thereafter, the resin composition injected into the groove may be cured by ultraviolet rays, and the fifth adhesion member may be formed.

Since the light conversion member 400 is inserted into the groove, the liquid crystal display according to the embodiment may be easily manufactured. In particular, the liquid crystal display according to the present embodiment does not require a process of attaching the light conversion member, the spacer, and the like to the light guide plate 200.

Therefore, the liquid crystal display device according to the present embodiment can be manufactured in a simple process while having an improved lifetime and durability.

10 is a view showing a light emitting diode, a light conversion member, and a light guide plate according to the fourth embodiment. FIG. 11 is a cross-sectional view of a light emitting diode, a light conversion member, and a light guide plate according to the fourth embodiment. In the description of the present embodiment, reference is made to the above description of the liquid crystal display devices, and the light guide plate will be further described. The description of the foregoing embodiments may be essentially combined with the description of the present embodiment, except for the changed part.

10 and 11, the groove 202 is formed on the side surface of the light guide plate 200. The groove 202 is formed to extend along the incident surface of the light guide plate 200.

Accordingly, the light guide plate 200 includes a light guide part 220, a spacer 230, a first support part 240, and a second support part 250.

The second support part 250 extends from the spacer part 230 to the light guide part 220. The second support part 250 is disposed on the light conversion member 400. In addition, the second support part 250 faces the first support part 240 with the light conversion member 400 interposed therebetween. That is, the first support part 240 and the second support part 250 sandwich the light conversion member 400.

The spacer 230, the light guide part 220, the first support part 240, and the second support part 250 surround the light conversion member 400. Accordingly, the light conversion member 400 may be firmly fixed to the inside of the light guide plate 200. That is, the light conversion member 400 may be fixed by the second support part 250 so as not to be separated from the light guide plate 200.

Therefore, in order to fix the light conversion member 400 to the light guide plate 200, an adhesive such as an adhesive member does not need to be used. Nevertheless, a photocurable resin composition is injected inside the groove to cure, and an adhesion member may be formed.

Therefore, the liquid crystal display device according to the present embodiment can be manufactured in a simple process while having an improved lifetime and durability.

In addition, the features, structures, effects and the like described in the embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified with respect to other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

Light source;
A light guide plate on which light emitted from the light source is incident;
A light conversion member interposed between the light source and the light guide plate; And
And a spacer disposed between the light source and the light conversion member. The display device of claim 1, wherein the spacer has a width of about 200 μm to about 2.5 mm. The display device of claim 2, wherein the spacer is in close contact with the light conversion member and the light source. The display device of claim 1, wherein a refractive index of the spacer corresponds to a refractive index of the light guide plate. Light guide plate;
A light source disposed on one side of the light guide plate; And
And a light conversion member disposed inside a groove or a hole formed in the light guide plate. The display device of claim 5, further comprising a display panel disposed on the light guide plate.
An effective display area in which an image is displayed is defined in the display panel.
The light guide plate defines a center area corresponding to the effective display area and an outer area around the center area,
The light conversion member is disposed in the outer area. The method of claim 5, wherein the light guide plate
A separation part interposed between the light source and the light conversion member; And
And a light guide part sandwiching the light conversion member together with the spacer. The display device of claim 7, wherein the light guide plate extends from the separation part to the light guide part and includes a first support part supporting the light conversion member. The display device of claim 8, wherein the light guide plate includes a second support part facing the first support part with a light conversion member interposed therebetween. The display device of claim 5, wherein the display device is filled inside the groove and is in close contact with an inner surface of the light conversion member and the groove.

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