KR102222297B1 - Reflector for uniform brightness and liquid crystal display device having thereof - Google Patents

Abstract

In the present invention, light scattering in the outer region of the reflector is reduced to improve the straightness of the reflected light, thereby sufficiently supplying the amount of light to the outer regions and corners of the liquid crystal panel. To this end, in the present invention, an ink pattern is formed in the outer region of the reflector to control light scattering and straightness.

Description

A reflector capable of uniform brightness and a liquid crystal display device equipped with it {REFLECTOR FOR UNIFORM BRIGHTNESS AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THEREOF}

The present invention relates to a reflecting plate, and in particular, to a reflecting plate capable of supplying uniform light to the entire liquid crystal panel by reducing scattering of light in an outer region and improving light straightness, and a liquid crystal display device having the same.

In recent years, as various portable electronic devices such as mobile phones, PDAs, and notebook computers are developed, the demand for a flat panel display device for light, thin and short that can be applied thereto is gradually increasing. As such flat panel display devices, LCD (Liquid Crystal Display), PDP (Plasma Display Panel), FED (Field Emission Display), and VFD (Vacuum Fluorescent Display) have been actively studied, but mass production technology, ease of driving means, and high-definition implementation However, due to the realization of a large-area screen, liquid crystal display devices (LCDs) are currently in the spotlight.

The liquid crystal display device is a transmissive display device, and displays a desired image on the screen by adjusting the amount of light that passes through the liquid crystal layer by the refractive index anisotropy of the liquid crystal molecules. Accordingly, in the liquid crystal display device, a backlight, which is a light source that passes through the liquid crystal layer, is installed for displaying an image. In general, backlights can be largely divided into two types.

First, a lamp is installed on the side of the liquid crystal panel to provide light to the liquid crystal layer, and the second is a direct type backlight in which the lamp provides light directly from the bottom of the liquid crystal panel.

The side-type backlight is installed on the side of the liquid crystal panel to supply light to the liquid crystal layer through the reflecting plate and the light guide plate. Accordingly, since it is possible to reduce the thickness, it is mainly used in notebook computers and the like that require a display device having a thin thickness. However, since the light source emitting light is located on the side of the liquid crystal panel, the side type backlight is difficult to apply to a large-area liquid crystal panel, and since light is supplied through the light guide plate, it is difficult to obtain high luminance. Therefore, there is a problem that it is not suitable for a liquid crystal panel for a large area LCD TV that is in the spotlight in recent years.

The direct type backlight is mainly used to manufacture a liquid crystal panel for an LCD TV because light emitted from a light source is directly supplied to the liquid crystal layer, so it can be applied to a large-area liquid crystal panel and has high luminance.

Meanwhile, as a light source of a backlight, a light source that emits light by itself, such as a light emitting device, is used instead of a fluorescent lamp. Since this light-emitting device emits R, G, and B monochromatic light, when applied to a backlight, it has an advantage in that it has good color reproducibility and can reduce driving power. Typically, when light emitted from a light emitting device is supplied to a liquid crystal panel, white light is supplied instead of monochromatic light.

However, the direct type backlight provided with the above LED has the following problems. In a direct type backlight, a plurality of LEDs are disposed under the liquid crystal panel to directly supply light to the liquid crystal panel. In addition, light emitted from the side or bottom surface of the LED is reflected by a reflector disposed under the LED and supplied to the liquid crystal panel again. This direct type backlight has the advantage that it can be applied to large-area liquid crystal panels as well as high luminance because light emitted from the LED is directly supplied to the liquid crystal layer, but a large number of LEDs are required to supply light to a large area. Therefore, the cost increases.

In order to solve this increase in cost, the number of LEDs can be reduced, but in this case, light cannot be uniformly supplied to the liquid crystal panel. In particular, since a sufficient amount of light is not supplied to the outer region of the liquid crystal panel, the luminance of the outer region, particularly the corner region, is lowered compared to the luminance of the center region, resulting in a defect in which the outer region looks dark.

The present invention has been made in view of the above points, and by increasing the amount of light supplied to the outer area of the liquid crystal panel by improving the straightness of the outer area of the reflector, it is possible to prevent defects that darken the corners and outer areas of the liquid crystal display device. An object of the present invention is to provide a reflector and a liquid crystal display device having the same.

In order to achieve the above object, the reflecting plate according to the present invention comprises: a central region that reflects and scatters incident light at the same time; And an outer region that reflects and scatters incident light at the same time, and the light scattering in the outer region is smaller than the light scattering in the central region.

Beads are scattered in the central area of the reflector and ink patterns including particles are formed in the outer area. In this case, the density of the ink patterns in the outer area decreases toward the outer and corners, and beads are scattered in the central area and the outer area, and the center The density of the bead of the region may be greater than that of the bead of the outer region, and at this time, the density of the bead of the outer region decreases toward the periphery and corner.

Further, an ink pattern is formed in the central area and the outer area, and the density of the ink pattern in the central area is greater than that of the ink pattern in the outer area, and the density of the ink pattern in the outer area decreases toward the outside and corners.

In addition, a liquid crystal display device according to the present invention includes a liquid crystal panel; A light source supplying light to the liquid crystal panel; It is composed of a reflecting plate that reflects light incident from the light source to a liquid crystal panel, and the reflecting plate is composed of a central area that reflects and scatters incident light at the same time, and an outer area that reflects and scatters incident light at the same time, It is characterized in that the light scattering in the outer region is smaller than the light scattering in the central region.

In the present invention, it is possible to increase the amount of light supplied to the outer region of the liquid crystal panel by forming an ink pattern in the outer region of the reflector or scattering low beads to reduce light scattering in the outer region than in the central region, thereby improving the light straightness in the outer region. There will be. Accordingly, it is possible to supply light of uniform luminance to the entire liquid crystal panel, thereby effectively preventing the darkening of the corners and outer regions of the liquid crystal display device.

1 is an exploded perspective view showing the structure of a liquid crystal display device according to a first embodiment of the present invention.
2 is a cross-sectional view of a liquid crystal display device according to the present invention.
3 is a plan view showing a reflector according to the present invention.
4A and 4B are views showing reflection and scattering of light when a bead and an ink pattern are formed in an outer region of a reflector, respectively.
5 is a graph showing the density of an ink pattern in an outer region.
6A and 6B are diagrams showing a structure of a reflector and a density of beads according to a second embodiment of the present invention, respectively.
7A and 7B are diagrams showing a structure of a reflector and density of an ink pattern according to a third embodiment of the present invention, respectively.

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

1 is a diagram illustrating a liquid crystal display device 101 according to a first embodiment of the present invention.

As shown in FIG. 1, in the liquid crystal display device 101 according to the present invention, a liquid crystal panel 110 in which pixels are arranged in a matrix form to realize an image and a liquid crystal panel 110 are connected to the side surfaces of the liquid crystal panel 110, respectively. Consists of a driving unit 115 for applying various signals such as scan signals and data signals to the panel 110, and a backlight 170 disposed on the rear surface of the liquid crystal panel 110 to supply light to the liquid crystal panel 110 do.

Although not shown in the drawing, the liquid crystal panel 110 is composed of a first substrate, a second substrate, and a liquid crystal layer therebetween to implement an image as a signal is applied from the outside. A plurality of gate lines and data lines are formed on the first substrate, which are arranged vertically and horizontally to define a plurality of pixel regions. A thin film transistor as a switching element is formed in each pixel region, and a pixel electrode is formed on the pixel region. In addition, although not shown in the drawings, the thin film transistor includes a gate electrode connected to a gate line, a semiconductor layer formed by stacking amorphous silicon on the gate electrode, and a source formed on the semiconductor layer and connected to the data line and the pixel electrode. It consists of an electrode and a drain electrode.

Although not shown in the drawings, the second substrate is a color filter composed of a plurality of sub-color filters implementing colors of red (R), green (G), and blue (B), and the sub-color It may be formed of a black matrix that divides the filters and blocks light passing through the liquid crystal layer.

The first and second substrates configured as described above are bonded to face each other by a sealant (not shown) formed outside the image display area to form a liquid crystal panel, and the bonding of the first substrate and the second substrate is performed as described above. It is achieved through a bonding key formed on the first substrate or the second substrate.

The backlight 170 is disposed under the liquid crystal panel 110 to emit light, and is provided between the liquid crystal panel 110 and the LED 172 to provide a liquid crystal panel 110. An optical sheet 175 made of a diffusion sheet and a prism sheet for diffusing and condensing light supplied to the LED 172, and a reflecting plate 174 disposed under the LED 172 to reflect light guided downward.

A plurality of LEDs 172 are mounted on the LED substrate 173. Signal wiring is provided on the LED substrate 173 so that an external signal is input to the LED 172 through the LED substrate 173, so that light is emitted from the LED 172. At this time, a plurality of the LED substrates 173 are disposed on the lower cover 150, and a plurality of LEDs 172 are mounted along the length direction of the LED substrate 173 on the LED substrate 173, so that the LEDs 172 The light emitted from is supplied to the liquid crystal panel 110.

In this way, when the LED 172 is disposed on the lower cover 150, the area corresponding to the position of the LED 172 is removed from the reflector 174 disposed on the lower cover 150, so that the window 174a is Is formed. Since the LED 172 is exposed upward through the window 174a of the reflector 174, the light emitted from the LED 172 is supplied to the liquid crystal panel 110 above through the window 174a.

The optical sheet 175 is supplied to the liquid crystal panel 110 by improving the efficiency of light output from the LED 172. The optical sheet 175 includes a diffusion sheet for diffusing the light output from the LED 172 and a prism sheet for condensing the light diffused by the diffusion sheet to supply uniform light to the liquid crystal panel 110. In this case, one or two diffusion sheets are provided, and the prism sheet consists of two sheets in which the prism crosses vertically in the x and y-axis directions to refract light in the x and y-axis directions to improve the straightness of the light.

The driver 115 is coupled to the liquid crystal panel 110 in various forms and supplies scan signals and image information to gate lines and data lines formed on the liquid crystal panel 110 to drive the pixels of the liquid crystal panel 110. .

The driver 115 includes a flexible printed circuit board (FPC) 115a and a printed circuit board 115b. A driving device such as a data driving device and a gate driving device for applying a signal to a liquid crystal panel through a gate line and a data line is mounted on the FPC 115a, and various wirings are formed on the printed circuit board 115b to form the driving device. Is electrically connected to the electrical wiring of the system fastened with the liquid crystal display device 101.

The printed circuit board 115b is disposed on the bottom or side surfaces of the lower cover 150. At this time, since the FPC 115a is flexible, it is folded to the rear side of the liquid crystal panel 110 and the printed circuit board 115b is disposed on the side or bottom surface of the lower cover 150.

When the printed circuit board 115b is disposed on the bottom surface of the lower cover 150, a cover shield 155 is installed on the lower cover 150. The cover shield 155 is folded to the bottom of the lower cover 150 and is fastened to the bottom of the lower cover 150 while covering the printed circuit board 115b. The printed circuit board 115b is protected while fixing it to the bottom of 150.

In the drawings, the printed circuit board 115b is formed only on one side of the liquid crystal panel 110 and the cover shield 155 is also attached to only one side of the lower cover 150, but the type or size of the liquid crystal display Accordingly, the printed circuit board 115b may be formed on both sides of the liquid crystal panel 110 and the cover shield 155 may also be attached to both sides of the lower cover 150.

The liquid crystal panel 110 and the backlight 170 are assembled by the guide panel 140, the lower cover 150 and the upper cover 160. In this case, the liquid crystal panel 110 is placed on the guide panel 140, and the guide panel 140 is assembled by being fastened to the lower cover 150 and the upper cover 160.

2 is a cross-sectional view showing an assembled structure of a liquid crystal display device according to the present invention, and a liquid crystal display device according to the present invention will be described in more detail with reference to this drawing.

As shown in FIG. 2, a plurality of LEDs 172 are disposed on the lower cover 150, and a reflecting plate 174 is disposed thereon. At this time, a window 174a is formed on the reflective plate 174 so that the LED 172 protrudes above the reflector 174 through the window 174a, and light emitted from the LED 172 passes through the window 174a. It is supplied to the liquid crystal panel 110. The LED 172 may be disposed on the reflector 174. At this time, the LED substrate on which the LED 172 is mounted will also be disposed on the reflector 174.

The optical sheet 175 is disposed on the LED 172 in a state spaced apart from the LED 172 by a predetermined distance.

The lower cover 150 is assembled with the upper cover 160 and the guide panel 140, and the liquid crystal panel 110 is placed on the guide panel 140 to be spaced apart from the optical sheet 175 by a predetermined distance. In this case, although not shown in the drawings, the upper cover 150 and the guide panel 140 may be assembled by fastening means such as screws.

An FPC 115a is attached to one side of the liquid crystal panel 110. A plurality of data driving elements 115c are mounted on the rear surface of the FPC 115a, that is, the surface attached to the liquid crystal panel 110. Although not shown in the drawing, a plurality of pads are formed on the FPC 115a to be electrically connected to the pads of the liquid crystal panel 110 so that a signal output from the data driving device 115c is supplied to the liquid crystal panel 110. . As shown in FIG. 1, a plurality of FPCs 115a are attached to the liquid crystal panel 110, and one or more data driving elements 115c are mounted on each FPC 115a.

Although not shown in the drawing, a printed circuit board is connected to the FPC 115a, and the printed circuit board is attached to the lower cover 150.

The reflective plate 174 is disposed on the lower cover 150 in a flat shape as a whole, but is bent upward at a certain angle in the outer area. In general, since the reflector 174 has a rectangular shape, as shown in FIG. 1, the reflector 174 is disposed in a form in which the outer edges of the four sides are curved upward.

In this case, the outer region of the reflector 174 is preferably bent upward at a certain curvature, but may extend upward at a certain angle from the central region in a flat planar shape.

As described above, as the outer region of the reflector 174 is bent upward, the angle of reflection of light incident on the central region and the outer region of the reflective plate 174 is changed by emitting light from the ED 172. As shown in the enlarged view of FIG. 2, since the reflection angle of light incident on the outer region of the reflecting plate 174 is larger than the reflection angle of light in the central region, the straightness of the light from the outer region to the upper direction increases. As a result, when the reflector 174 of the present invention is applied, compared to the conventional reflector 174, the amount of light supplied to the outer area of the liquid crystal panel increases, and the outer area and the corner area of the liquid crystal display device are darkened. It becomes possible to prevent visible defects.

3 is a plan view showing the structure of a reflector according to the present invention.

As shown in FIG. 3, in the present invention, the reflective plate 174 includes a central area A and an outer area B. In this case, the central area (A) is an area in which the LED 172 is disposed, and the outer area (b) is an area in which the reflector 174 of FIG. 2 is inclined.

As shown in the figure, a plurality of LEDs 172 are arranged in a matrix shape in the central area A. At this time, the arrangement interval, the number of arrangements, and arrangement shape of the LEDs 172 may be variously changed according to the size of the liquid crystal panel, the shape of the liquid crystal panel, and the presence or absence of the light guide plate.

Although not shown in the drawing, beads are scattered in the central area A of the reflective plate 174, and an ink pattern 192 is formed in the corner area of the outer area B. As described above, in the present invention, by forming the ink pattern 192 without forming a bead in the outer region B, the amount of light supplied to the outer region of the liquid crystal panel is increased by changing the degree of reflection and scattering of light in this region. , This will be described in more detail with reference to the drawings.

4A and 4B are diagrams illustrating reflection of light in a configuration in which a bead is formed in an outer region of a reflecting plate and a configuration in which an ink pattern is formed, respectively.

4A and 4B, the reflector 174 is disposed on the lower cover 150, and the LED 172 protrudes over the reflector 174 through the opening or is formed on the reflector 174 to provide the LED 172. The light emitted from is incident on the reflective plate 174. At this time, the reflective plate 174 is formed flat in the central region (A), and is bent upward with a certain curvature in the outer region (B) (of course, in the upper direction in a flat state without curvature in the outer region (B). It may be formed to be inclined at a certain angle).

In the structure shown in FIG. 4A, beads 190 having a uniform density are formed over the entire central region A and the outer region B of the reflective plate 174. Accordingly, in the reflecting plate 174 of this structure, light incident on the central area A and the outer area B is reflected by the reflecting plate 174 and scattered by the beads 190 at the same time.

Since all the light scattered in the center area (A) is supplied to the liquid crystal panel, the light does not leak to other areas other than the liquid crystal panel, but rather uniform luminance (light from each LED 172 is adjacent to the LED 172 due to scattering). Because it is mixed with the light of ), the light of) is supplied to the liquid crystal panel. However, some of the light scattered in the outer region B is reflected toward the liquid crystal panel due to the inclination, but part of the light travels to the outside of the liquid crystal panel due to the scattering and leaks.

On the other hand, in the structure shown in FIG. 4B, the bead 190 is formed in the central area A of the reflective plate 172, while the ink pattern 192 is formed in the outer area B. Particles are dispersed in the ink pattern 192 to scatter incident light. The particles dispersed in the ink pattern 192 are made of an inorganic material such as _{SiO 2 or made of another material.} Further, the beads 190 are made of calcium carbonate, barium sulfate, silica, titanium oxide, glass, and PMMA (Poly Methyl Meth Acrylate), and are dispersed in the central region A of the reflecting plate 172 by a binder such as acrylic. At this time, the bead 190 has a size of several μm, and the size of the bead 190 _{is larger than that of the SiO 2} particle 194, and the density of the bead 190 is included in the ink pattern 192. Higher than the density of the particles.

Accordingly, the degree of scattering of light incident to the central region A of the reflective plate 174 on which the bead 190 is formed is greater than the degree of scattering of the light incident to the outer region B where the ink pattern 192 is formed. In other words, the linearity of the light in the outer region (B) is improved than that of the light in the central region (A) of the reflective plate 174, so that the light emitted from the LED 172 and incident to the outer region (B) is By going straight in the corner direction of 174, the amount of light supplied to the corner area of the liquid crystal panel corresponding thereto increases.

In FIG. 3, the ink pattern 192 is formed only in the corner area of the reflective plate 174, but the ink pattern 192 is preferably formed over the entire outer area B of the reflecting plate 174. That is, the ink pattern 192 may be formed along not only the corner area of the reflective plate 174 but also the outer area of the four sides.

Of course, since the diagonal length of the corner area of the outer area (B) is larger than the width of the outer area (B), the supply of light to the corner area is not smooth, so that the dark phenomenon in the corner area of the liquid crystal display device is greater than that of the outer area. As a result, the ink pattern 192 is mainly formed in the corner region, but the outer region is also darkened. Therefore, it is preferable to form the ink pattern 192 also in the outer region.

When the ink pattern 192 is formed only in the corner area, beads are scattered in the outer area B excluding the corner area to reflect and scatter light incident to the area at the same time.

The ink pattern 192 formed in the corner area is formed in a fan shape that spreads from the center area to the corner, so that light is widely reflected in the corner area and travels straight so that the light is uniformly supplied to the entire corner area of the liquid crystal panel.

On the other hand, the amount of light supplied decreases from the outer area B toward the corner and the outer side. Accordingly, light scattering from the outer region B toward the corner and the outer side must be reduced and straightness must be improved so that light is smoothly supplied from the outer region of the liquid crystal panel to the corner and the outer side.

Since the ink patterns 192 scatter light, the intensity of scattering increases as the number of ink patterns 192, that is, density, increases, and thus the straightness of the light decreases. As shown in FIG. 5, in the present invention, the density of the ink pattern 192 in the outer region B of the reflector 174 is reduced from the inside of the outer region B toward the corner and the outer side, Increasingly, the linearity of the reflected light is improved so that the light is supplied to the entire outer area of the liquid crystal panel.

In the drawing, the density of the ink pattern 192 decreases linearly from the outer area (B) toward the outer or corner, but depending on various factors such as the size of the liquid crystal display device and the light scattering rate of the ink pattern 192. As the density of the ink pattern 192 decreases exponentially or logarithmically, the scattering of light linearly, exponentially or logarithmically decreases toward the outer side, thereby increasing the amount of light supplied to the outer area of the liquid crystal panel. At the same time, it is possible to prevent light from leaking to the outside of the liquid crystal panel.

6A is a view showing a structure of a reflector of a liquid crystal display device according to a second embodiment of the present invention, and FIG. 6B is a view showing the density of beads formed on the reflector.

As shown in FIG. 6A, a plurality of PCBs 273 are disposed on the lower cover 250 and a reflecting plate 274 is provided thereon. A plurality of LEDs 274 are mounted on each PCB 273, and the mounted LEDs 274 protrude onto the reflecting plate 274 through an opening formed in the reflecting plate 274 to emit light.

The reflector 274 includes a central area A in which an LED (LED) is disposed and an outer area B formed along the outer periphery of the central area A. At this time, the central area A of the reflector 274 is flat, while the outer area B is inclined upward at a certain angle or upward at a certain curvature at a certain angle.

Beads 290 are scattered on the upper surface of the reflector 274. In this case, as shown in FIG. 6B, the bead 290 has a uniform density throughout the central region A, and a smaller density than the central region A in the outer region B. As shown in the figure, the density decreases linearly or non-linearly toward the corners and outward in the outer region B.

As described above, since the density of the beads in the outer region B is smaller than the density of the beads in the central region A, the degree of scattering in the outer region B is smaller than that of the central region A. Since the outer region (B) is formed to be inclined, the light reflected from the outer region (B) is supplied straight to the outer region of the liquid crystal panel, so that light of uniform luminance is supplied throughout the liquid crystal panel and to the outside of the liquid crystal panel. It is possible to prevent light leakage.

7A is a view showing a structure of a reflector of a liquid crystal display device according to a third exemplary embodiment of the present invention, and FIG. 7B is a view showing the density of beads formed on the reflector.

As shown in FIG. 7A, a plurality of PCBs 373 are disposed on the lower cover 350 and a reflecting plate 374 is provided thereon. A plurality of LEDs 374 are mounted on each PCB 373, and the mounted LEDs 374 protrude onto the reflecting plate 374 through an opening formed in the reflecting plate 374 to emit light.

The reflector 374 includes a central area A in which an LED (LED) is disposed and an outer area B formed along the outer periphery of the central area A. At this time, the central area A of the reflector 374 is flat, while the outer area B is inclined upward at a certain angle or upward at a certain curvature at a certain angle.

Ink patterns 394 are scattered on the upper surface of the reflective plate 374. In this case, as shown in FIG. 7B, the ink pattern 394 has a uniform density throughout the central region A, and a smaller density than the central region A in the outer region B. . As shown in the figure, the density decreases linearly or non-linearly toward the corners and outward in the outer region B.

As described above, in this embodiment, beads are not scattered on the reflective plate 372 and only the ink pattern 394 is formed. At this time, the density of the ink pattern 372 in the outer region B is the ink pattern in the central region A ( Since it is smaller than the density of 372), the degree of scattering in the outer region (B) is smaller than that of the central region (A), and the outer region (B) of the reflector (B) is formed so as to be inclined, so that it is reflected in the outer region (B). The resulting light is supplied by going straight to the outer region of the liquid crystal panel, so that light of uniform luminance is supplied to the entire liquid crystal panel and at the same time, it is possible to prevent the light from leaking to the outside of the liquid crystal panel.

On the other hand, although not shown in the drawings, in the liquid crystal display device of this embodiment, beads may be scattered over the entire reflector 372. That is, in this embodiment, beads are formed at a uniform density over the entire reflective plate 372, and the ink pattern 372 is formed at a uniform density in the central region (A), and the central region (A) is formed in the outer region (B). ) May be formed to decrease the density linearly or non-linearly with a density smaller than ).

As described above, in the present invention, the ink pattern is formed in the outer region of the reflector or the density of the bead is reduced to reduce the scattering of light in the outer region and improve the straightness of the light so that the reflected light from the outer region does not leak to the outside. It should be supplied to the outer area of the liquid crystal panel. Accordingly, it is possible to prevent the occurrence of image quality defects in which an outer area or a corner area of the liquid crystal display device becomes dark.

Meanwhile, in the above detailed description, a liquid crystal display device having a specific structure is exemplified and described, but this is for convenience of description and not for limiting the present invention. In the present invention, if an ink pattern is formed in the outer region of the reflector or a bead having a density different from that of the central region is formed, a backlight or liquid crystal panel having any structure may be applied.

Accordingly, various modifications of the present invention and structures that can be easily created based on the present invention should also be included in the scope of the present invention. Therefore, the scope of the present invention should be determined not by the above detailed description, but by the appended claims.

110: liquid crystal panel 150: lower cover
172: LED 174: reflector
190: bead 192: ink pattern

Claims (13)

In the reflector that reflects light toward the liquid crystal panel,
A central region formed flat; And
It is composed of an outer area formed to be inclined at a certain angle from the central area in the upper direction,
Any one of a bead and an ink pattern for scattering light is disposed in the central region, and any one of the bead and the ink pattern is disposed in the outer region, so that light scattering in the outer region is more than that in the central region. Small reflector. The reflector of claim 1, wherein the beads are scattered and disposed in the central region, and the ink pattern is formed in the outer region. The reflector according to claim 2, wherein a plurality of particles are distributed in the ink pattern. The reflector of claim 3, wherein the density of the plurality of particles distributed in the outer area decreases toward the outer side and the corner. The method of claim 1,
The beads are scattered in each of the central region and the outer region,
The reflecting plate having a density of the beads scattered in the outer region is smaller than that of the beads scattered in the central region. The reflector of claim 5, wherein the density of the beads scattered in the outer region decreases toward the outer and the corners. The method of claim 1,
The ink pattern is formed in each of the central region and the outer region,
In the ink pattern, a plurality of particles are distributed,
The reflecting plate having a density of the plurality of particles distributed in the outer region is smaller than that of the plurality of particles distributed in the central region. The reflecting plate of claim 7, wherein the density of the plurality of particles distributed in the outer region decreases toward the outer portion and the corner. delete The reflector of claim 1, wherein the outer region is formed of a plane inclined at the predetermined angle from the central region. The reflector of claim 1, wherein the outer region is formed of a curved surface inclined at the predetermined angle from the central region. A reflector according to any one of claims 1 to 8, 10 and 11;
The liquid crystal panel; And
Including a light source for supplying light to the liquid crystal panel,
The liquid crystal panel includes a first region corresponding to the central region of the reflector and a second region corresponding to the outer region of the reflector and formed outside the first region. The liquid crystal display device of claim 12, wherein the light source is an LED.

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