KR101758440B1 - Module for liquid crystal display apparatus and liquid crystal display apparatus comprising the same - Google Patents

Abstract

The present invention relates to a panel for a liquid crystal display, a first polarizing plate formed on an upper surface of the panel for the liquid crystal display and having a hard coating layer formed on the uppermost surface thereof, And a second polarizing plate formed between the backlight unit and the bottom surface and having an antireflection layer formed thereon, wherein the liquid crystal panel has a front face of 0 deg., A left side with respect to the front side, and a right side with respect to the front side , A contrast ratio at a side of + 70 ° to + 80 ° or -70 ° to -80 ° is 250 to 400, and a luminance non-uniformity of the formula 1 is 15% or less, and a liquid crystal display device including the module .

Description

TECHNICAL FIELD [0001] The present invention relates to a module for a liquid crystal display device, and a liquid crystal display device including the same. BACKGROUND OF THE INVENTION < RTI ID =

The present invention relates to a module for a liquid crystal display device and a liquid crystal display device including the same.

The liquid crystal display device may include a liquid crystal panel, a polarizing plate formed on one surface of the liquid crystal panel and both surfaces, and a backlight unit. The polarizing plate may include a polarizer and a protective film formed on at least one side of the polarizer. The liquid crystal panel may include a lateral electric field liquid crystal mode. The transverse electric field liquid crystal mode has a smaller liquid crystal pressure and better viewing angle than the vertically aligned liquid crystal mode. However, in the lateral electric field liquid crystal mode, light leakage occurs in a black mode, and the contrast ratio may be low.

There has been attempted to improve the contrast ratio in the lateral electric field liquid crystal mode by controlling the angle formed by the optical axis of the liquid crystal of the liquid crystal panel and the thickness direction of the protective film. However, since there is a difference in angle of the optical axis between each liquid crystal panel, it is difficult to universally apply the above method.

The background art of the present invention is disclosed in Korean Patent Publication No. 2008-0012160.

It is an object of the present invention to provide a module for a liquid crystal display including a liquid crystal panel including a lateral electric field liquid crystal mode and capable of improving a front contrast ratio and a side contrast ratio.

Another object of the present invention is to provide a module for a liquid crystal display device including a liquid crystal panel including a lateral field liquid crystal mode and capable of lowering the luminance nonuniformity.

The module for a liquid crystal display of the present invention comprises a liquid crystal panel, a first polarizer formed on the upper surface of the liquid crystal panel and having a hard coating layer formed on the uppermost surface thereof, and a second polarizer formed between the liquid crystal panel and the backlight unit And a second polarizing plate having an antireflection layer formed on a lower surface thereof. The liquid crystal display device according to claim 1, wherein the liquid crystal panel has a front surface of 0 deg., A left side with respect to the front surface, The contrast ratio at 80 ° or -70 ° to -80 ° is 250 to 400, and the luminance non-uniformity of Equation 1 can be 15% or less.

The liquid crystal display device of the present invention may include the liquid crystal display device module.

The present invention provides a module for a liquid crystal display device including a liquid crystal panel including a lateral field liquid crystal mode and capable of improving a front contrast ratio and a side contrast ratio.

The present invention provides a module for a liquid crystal display device including a liquid crystal panel including a lateral electric field liquid crystal mode and capable of lowering luminance nonuniformity.

1 is a cross-sectional view of a module for a liquid crystal display device according to an embodiment of the present invention.

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

The terms " upper "and" lower "in this specification are defined with reference to the drawings, and the term" lower "

In the present specification, the term "contrast ratio" refers to a liquid crystal panel of a width x length (600 mm x 340 mm) with a front side of 0 °, a left side with respect to the front side, and a right side with respect to the front side. In the luminance measuring apparatus, the measurement angle is changed from -90 ° to 0 ° to the left end point to + 90 ° to the right end point, and the luminance is changed to the black mode (black portion) and the white mode (white portion) . (The maximum value of the luminance) / (the minimum value of the luminance) among the luminance values measured in the specific measurement angle or the specific measurement angle range is the contrast ratio.

In the present specification, the term "side surface " refers to the front surface of the liquid crystal panel, and the left side indicates the front side and the right side indicates the front side. + 90 degrees. In this case, it means an area of -80 ° to -70 ° or any point included in this area, or a point of + 70 ° to + 80 ° or any point included in this area.

Hereinafter, a module for a liquid crystal display device according to an embodiment of the present invention will be described with reference to FIG. 1 is a schematic cross-sectional view of a module for a liquid crystal display device according to an embodiment of the present invention.

1, a module 100 for a liquid crystal display according to an exemplary embodiment of the present invention includes a first polarizer 20 having a hard coating layer 50 formed on a top surface thereof, an anti-reflection layer 60 formed on the lowermost surface thereof, A second polarizing plate 30 and a liquid crystal panel 10.

The module 100 for a liquid crystal display device according to the present embodiment can improve the side contrast ratio and the front contrast ratio. Specifically, the front contrast ratio is 1300 to 1500, and the contrast ratio at the side + 70 ° to + 80 ° or -70 ° to -80 ° can be 250 to 400, respectively. In the above range, the front and side contrast ratio may be improved.

The module 100 for a liquid crystal display according to the present embodiment has a luminance inequality of 15% or less, specifically 10% to 15%, in the black mode and the white mode, . In the above range, the viewer can not recognize the list portion and the dark portion on the liquid crystal panel:

<Formula 1>

Luminance non-uniformity = (A - B) / A x 100

A is the maximum value of the luminance measured for each of the nine intersections generated by dividing the liquid crystal panel of the width x length (600 mm x 340 mm) into four quarters and four quarters, and B is the width x length (600 mm x 340 mm ) Is the minimum of the luminance measured for each of the nine intersections generated by dividing the liquid crystal panel into four quarters and four quarters. The black mode and the white mode can be obtained by adjusting the luminance measuring device, respectively, and the liquid crystal panel is made into a list and an arm.

The luminance when measuring the luminance non-uniformity can be measured using a spectrophotometer (SR-3A, Topcon), but is not limited thereto. The luminance non-uniformity shows the uniformity of luminance. The lower the luminance non-uniformity, the better the luminance uniformity.

The contrast ratio of the liquid crystal display module 100 according to the present embodiment may be 300 to 400 at the side + 70 ° or -70 °, and the contrast ratio may be 300 to 350 at the + 75 ° or -75 ° And a contrast ratio of 250 to 300 at + 80 ° or -80 °. Within the above range, there may be an effect of lowering the luminance non-uniformity and an effect of improving rainbow stains.

Hereinafter, the first polarizing plate, the second polarizing plate, and the liquid crystal panel will be described in detail.

The first polarizing plate 20 is formed on one surface of the liquid crystal panel 10 and can emit light incident from the liquid crystal panel 10. The first polarizer 20 includes a first polarizer 21, a first protective film 22 formed on the upper surface of the first polarizer 21, a hard coating layer 50 formed on the upper surface of the first protective film 22, And a second protective film 23 formed on the lower surface of the first polarizer 21. [

The first polarizer 21 is molecularly oriented in a specific direction and may include a polarizer made of a polyvinyl alcohol film to transmit only light in a specific direction when mounted on a liquid crystal display device. In one embodiment, the first polarizer 21 can be produced by dyeing a polyvinyl alcohol film with iodine or a dichroic dye and stretching it in a certain direction. Specifically, it is produced through a swelling process, a dyeing step, a stretching step and a crosslinking step. Methods of performing each step are commonly known to those skilled in the art.

The thickness of the first polarizer 21 may be 20 占 퐉 to 60 占 퐉. In the above range, it can be used in a liquid crystal display device.

The first protective film 22 may be formed on the upper surface of the first polarizer 21 to protect the first polarizer 21. The first protective film 22 may be a film made of optically transparent resin. Specifically, the resin may be at least one selected from the group consisting of polyester-based, cyclic-polyolefin-based, polycarbonate-based, polyether sulfone-based, polysulfone-based, poly An amide type, a polyimide type, a non-halogen type polyolefin type, a polyarylate type, a polyvinyl alcohol type, a polyvinyl chloride type, and a polyvinylidene chloride type. The thickness of the first protective film 22 may be 1 탆 to 100 탆, specifically 40 탆 to 90 탆. And can be used as a protective film for a liquid crystal display device in the above range.

The hard coating layer 50 is formed on the uppermost surface of the first polarizing plate 20 and can protect the first protective film 22, the first polarizer 21, and the second protective film 23.

The hard coat layer 50 may have a pencil hardness of 2H to 3H. Within this range, the first polarizing plate, the liquid crystal panel and the second polarizing plate can be protected.

The hard coat layer 50 may have a refractive index of 1.46 to 1.47 and a surface roughness (Ra) of 200 nm to 300 nm. In the above range, it is possible to improve the side contrast ratio and lower the luminance non-uniformity to increase the luminance uniformity. The hard coating layer 50 has the refractive index and the surface roughness to induce scattering of the light sequentially passing through the second protective film 23, the first polarizer 21 and the first protective film 22, Can be lowered.

The hard coat layer 50 may have a reflectance of 1% to 5%. In the above range, there may be a viewing angle diffusion effect due to refraction of transmitted light.

The hard coat layer 50 may be made of a composition for a hard coat layer comprising an ultraviolet curable monomer, an oligomer thereof, or a mixture thereof. Specifically, the composition for the hard coat layer may be a (meth) acrylate-based monomer, an oligomer thereof or a mixture thereof; And an initiator.

The hard coat layer 50 may have a thickness of 3 탆 to 7 탆. In the above range, it can be used in a liquid crystal display device.

The laminate of the hard coat layer 50 and the first protective film 22 may have a haze of 0.2% to 0.3% at a wavelength of 380 nm to 780 nm. In the above range, the side contrast ratio improvement and the luminance non-uniformity reduction effect can be realized.

The second protective film 23 is formed on the lower surface of the first polarizer 21 to protect the first polarizer 21.

The second protective film 23 may be a film formed of the same or different optically transparent resin as the first protective film 21. The thickness of the second protective film 23 may be 1 탆 to 100 탆, specifically 40 탆 to 90 탆. And can be used as a protective film for a liquid crystal display device in the above range. The thickness of the second protective film 23 may be the same or different from that of the first protective film.

The first polarizing plate 20 may have a transmittance of 40% to 45% and a degree of polarization of 99.900% to 99.998% at a wavelength of 380 nm to 780 nm. In the above range, it can be used in a liquid crystal display device.

Although not shown in FIG. 1, an adhesive layer may be formed on the lower surface of the first polarizer plate to adhere the first polarizer plate to the liquid crystal panel. The adhesive layer may be formed of a composition for a pressure-sensitive adhesive layer containing a pressure-sensitive adhesive resin such as a (meth) acrylic resin, a silicone resin, and an epoxy resin, a curing agent, and a coupling agent.

Although not shown in FIG. 1, an adhesive layer may be formed between the first polarizer and the first protective film, and between the first polarizer and the second protective film. The adhesive layer may be formed of a conventional adhesive for a polarizing plate.

The second polarizing plate 30 is formed on the other surface of the liquid crystal panel 10 so that light incident from the backlight unit 40 can be emitted to the liquid crystal panel 10.

The second polarizer 30 includes a second polarizer 31 and a fourth protective film 33 formed on the upper surface of the second polarizer 31. The third protective film 32 formed on the lower surface of the second polarizer 31 , And an antireflection layer 60 formed on the lower surface of the third protective film 32.

The second polarizer 31 may include a polarizer made of a polyvinyl alcohol film, which is molecularly oriented in a specific direction and transmits only light in a specific direction when mounted on a liquid crystal display device. The thickness of the second polarizer 31 may be 20 占 퐉 to 60 占 퐉. In the above range, it can be used in a liquid crystal display device. The second polarizer 31 may be formed of the same or different material as the first polarizer 21, and may be the same or different in thickness.

The third protective film 32 and the fourth protective film 33 may be formed on one surface and the other surface of the second polarizer 31 to protect the second polarizer 31, respectively. The third protective film 32 and the fourth protective film 33 may be films formed of the same or different resins as the first protective film 22, respectively. Each of the third protective film 32 and the fourth protective film 33 may have a thickness of 1 탆 to 100 탆, specifically 40 탆 to 90 탆. And can be used as a protective film for a liquid crystal display device in the above range. The thicknesses of the third protective film 32 and the fourth protective film 33 may be the same or different.

The antireflection layer 60 is formed on the lower surface of the third protective film 32 and may be positioned between the liquid crystal panel 10 and the backlight unit 40. As a result, it is possible to prevent the specular reflection of the light emitted from the backlight unit, thereby lowering the luminance non-uniformity. That is, light emitted from the backlight unit is irregularly reflected by the anti-reflection layer to be directed to the backlight unit again, and the light nonuniformity is lowered by performing light circulation between the uppermost end face of the backlight unit and the anti-

The antireflection layer 60 may have a refractive index of 1.46 to 1.48 and a reflectance of 5% to 15%. In the above range, there is an effect of improving the front and side contrast ratio, and the luminance non-uniformity may be lowered.

The antireflection layer 60 may have a thickness of 1 占 퐉 to 10 占 퐉, specifically, 3 占 퐉 to 8 占 퐉. And can be used in a liquid crystal display device in the above range.

The antireflection layer 60 may be made of a composition for an antireflection layer comprising an ultraviolet curable monomer, an oligomer thereof, or a mixture thereof. Specifically, the composition for an antireflection layer may include (meth) acrylate-based monomer, an oligomer thereof or a mixture thereof, and an initiator.

The laminate of the antireflection layer 60 and the third protective film 32 may have a haze of 20% to 25%, specifically 21% to 25% at a wavelength of 380 nm to 780 nm. In the above range, the front contrast ratio and the side contrast ratio can be improved and the luminance non-uniformity can be lowered.

The transmittance of the second polarizing plate 30 may be 40% to 45% at a wavelength of 380 nm to 780 nm, and the degree of polarization may be 99.900% to 99.998%.

By increasing the reflectance and the refractive index of the antireflection layer 60 with respect to the hard coat layer 50, it is possible to improve the front and side contrast ratio and the luminance non-uniformity value. The difference between the refractive index of the antireflection layer and the refractive index of the hard coat layer (the refractive index of the antireflection layer-the refractive index of the hard coat layer) may be from 0.005 to 0.01 and the difference between the reflectance of the antireflection layer and the reflectivity of the hard coat layer Can be 1% to 15%. In the above range, it is possible to improve the front and side contrast ratio and the luminance non-uniformity value.

Although not shown in FIG. 1, an adhesive layer may be formed on the lower surface of the second polarizer 30 to adhere the second polarizer 30 to the liquid crystal panel 10. The adhesive layer may be formed of a composition for a pressure-sensitive adhesive layer containing a pressure-sensitive adhesive resin such as a (meth) acrylic resin, a silicone resin, and an epoxy resin, a curing agent, and a coupling agent. Although not shown in FIG. 1, an adhesive layer may be formed between the second polarizer and the third protective film, and between the second polarizer and the fourth protective film. The adhesive layer may be formed of a conventional adhesive for a polarizing plate.

The liquid crystal panel 10 may include a liquid crystal cell layer sealed between an upper substrate and a lower substrate (not shown), the upper substrate may be a color filter (CF) substrate, and the lower substrate may be a TFT (Thin Film Transistor) . The upper substrate and the lower substrate may be the same or different, and may be a glass substrate or a plastic substrate. The plastic substrate is made of plastic such as PET (polyethyleneterephthalate), PC (polycarbonate), PI (polyimide), PEN (polyethylenenaphthalate), PES (polyethersulfone), PAR (polyarylate) and COC But the present invention is not limited thereto. The liquid crystal cell layer may include a lateral electric field liquid crystal, specifically, an IPS (In Place Switching) mode liquid crystal.

A liquid crystal display device according to an embodiment of the present invention may include a module for a liquid crystal display device according to an embodiment of the present invention.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.

Production Example 1: Preparation of Polarizing Plate

A polyvinyl alcohol film (VF-PS6000, manufactured by Kuraray Co., Ltd., thickness: 60 占 퐉) was stretched three times at 60 占 폚 and adsorbed to iodine and then stretched 2.5 times in an aqueous boric acid solution at 40 占 폚 to prepare a polarizer. (Refractive index of the hard coating layer: 1.465, surface roughness (Ra) of the hard coating layer: 200 to 300 nm) of triacetyl cellulose film (80 CHCW-KT, TOPPAN yarn, hard coating layer formed on one side of the polarizer, haze of triacetyl cellulose film : 0.2% to 0.3%) was adhered to the other side of the polarizer, and a triacetyl cellulose film (ZRD40SL, manufactured by FUJI) was attached to the other side of the polarizer.

Production Example 2: Preparation of Polarizer

Polarizers were prepared in the same manner as in Production Example 1. A triacetylcellulose film (AT15W, manufactured by TOPPAN Co., refractive index of the antireflection layer: 1.475, in which the antireflection layer was formed on one side of the polarizer, a triacetylcellulose film Haze: 21% to 25%) was adhered to the other side of the polarizer, and a triacetyl cellulose film (ZRD40SL, manufactured by FUJI) was attached to the other side of the polarizer.

Production Example 3: Preparation of Polarizer

Polarizers were prepared in the same manner as in Production Example 1. A triacetyl cellulose film (TD80ULN, FUJI company) was bonded to one side of the polarizer, and a triacetyl cellulose film (ZRD40SL, FUJI company) was attached to the other side of the polarizer to prepare a polarizing plate.

Production Example 4: Preparation of Polarizer

Polarizers were prepared in the same manner as in Production Example 1. A triacetyl cellulose film (TD80ULN, FUJI) was attached to one side of the polarizer, and a triacetyl cellulose film, in which an antireflection layer and a hard coat layer were sequentially formed, was adhered to the other side of the polarizer to produce a polarizing plate.

Transmittance (wavelength: 380 nm to 780 nm), polarization degree and hue value of the polarizing plates of Production Examples 1 to 4 were measured with a V-7100 spectrophotometer. The results are shown in Table 1.

Transmittance (%) Polarization degree (%) Color value as bs ac bc The polarizing plate of Production Example 1 42.6 99.998 -1.25 3.5 0.21 -0.32 The polarizing plate of Production Example 2 42.6 99.998 -1.25 3.5 0.22 -0.31 The polarizing plate of Production Example 3 42.8 99.998 -1.25 3.6 0.20 -0.32 The polarizing plate of Production Example 4 42.5 99.997 -1.25 3.6 0.23 -0.34

Example: Fabrication of Module for Liquid Crystal Display Device

The polarizing plate of Production Example 1 was adhered to the upper surface of the liquid crystal panel in the transverse electric field liquid crystal mode so that the hard coating layer was positioned on the uppermost surface and the polarizing plate of Production Example 2 was adhered to the lower surface of the panel so that the anti- . A backlight unit was assembled under the antireflection layer.

Comparative Example 1: Fabrication of module for liquid crystal display device

The polarizing plate of Production Example 2 was adhered to the upper surface of the liquid crystal panel in the lateral electric field liquid crystal mode so that the antireflection layer was positioned on the uppermost surface and the polarizing plate of Production Example 1 was adhered to the lower surface of the panel such that the hard coating layer was positioned on the lowermost surface . A backlight unit was assembled under the hard coat layer.

Comparative Example 2: Fabrication of module for liquid crystal display device

The polarizing plate of Production Example 3 was adhered to the upper surface of the liquid crystal panel in the transverse electric field liquid crystal mode and the polarizing plate of Production Example 2 was adhered to the lower surface of the panel so that the antireflection layer was positioned on the lowermost surface. The backlight unit was placed under the antireflection layer.

Comparative Example 3: Fabrication of module for liquid crystal display device

The polarizing plate of Production Example 2 was adhered to the upper surface of the liquid crystal panel in the lateral electric field liquid crystal mode so that the antireflection layer was positioned on the uppermost surface and the polarizing plate of Production Example 3 was adhered to the lower surface of the panel. The backlight unit was placed in the lower part of the polarizing plate of Production Example 3.

Comparative Example 4: Fabrication of Module for Liquid Crystal Display Device

The polarizing plate of Production Example 3 was adhered to the upper surface of the liquid crystal panel in the transverse electric field liquid crystal mode and the polarizing plate of Production Example 3 was adhered to the lower surface of the panel. The backlight unit was placed in the lower part of the polarizing plate of Production Example 3.

Comparative Example 5: Fabrication of Module for Liquid Crystal Display Device

The polarizing plate of Production Example 4 was adhered to the upper surface of the liquid crystal panel in the transverse electric field liquid crystal mode and the polarizing plate of Production Example 3 was adhered to the lower surface of the panel. The backlight unit was placed in the lower part of the polarizing plate of Production Example 3.

Table 2 shows the liquid crystal display devices of Examples and Comparative Examples 1 to 5. In Table 2, a polarizing plate formed on the upper surface of the liquid crystal panel is defined as an upper polarizing plate, a lower surface of the liquid crystal panel, and a polarizing plate between the liquid crystal panel and the backlight unit as a lower polarizing plate. Table 2 shows the outermost surface treatment among the respective polarizing plates.

The upper polarizer plate The lower polarizer plate Example Hard coating layer treatment Antireflection layer treatment Comparative Example 1 Antireflection layer treatment Hard coating layer treatment Comparative Example 2 No surface treatment Antireflection layer treatment Comparative Example 3 Antireflection layer treatment No surface treatment Comparative Example 4 No surface treatment No surface treatment Comparative Example 5 Antireflection layer and hard coating treatment No surface treatment

The following properties of the liquid crystal display devices of Examples and Comparative Examples 1 to 5 were evaluated, and the results are shown in Tables 3 to 5.

(1) The luminance and color values of the name part and arm part were measured using the SR-3A (Topcon company) for the manufactured liquid crystal display device. The luminance and color values were divided into four quadrants and four quadrants for each of the positions of the panel of width x length (600 mm x 340 mm), and nine points of intersections were generated and measured twice, and then averaged. The luminance of the list portion (black mode) and the dark portion (white mode) were measured in the same manner while changing the measurement angle of the SR-3A. From this, the contrast ratio was calculated, and the luminance non-uniformity was calculated according to Equation 1 based on the measured luminance.

(2) The manufactured liquid crystal display device was visually observed for iridescent blobs in the 0 ° direction and the + 45 ° direction of the front face using a spectroradiometer (SR-3A, Topcon). A case where iridescence is not generated, a case where iridescence occurs weakly, a case where iridescence occurs moderately, a case where iridescence occurs strongly, and a case where iridescence occurs strongly.

Front luminance (cd) face
Contrast ratio Front color value (x) face
Color value (y) list Arm portion list Arm portion list Arm portion Example 240 0.171 1403 0.317 0.270 0.336 0.265 Comparative Example 1 235 0.184 1277 0.315 0.268 0.335 0.265 Comparative Example 2 242 0.178 1360 0.317 0.269 0.336 0.265 Comparative Example 3 240 0.187 1283 0.316 0.270 0.334 0.266 Comparative Example 4 244 0.183 1333 0.312 0.267 0.327 0.261 Comparative Example 5 240 0.186 1290 0.322 0.276 0.341 0.273

Contrast Ratio by Side Angle -70 ° -75 ° -80 ° + 70 ° + 75 ° + 80 ° Example 376 315 264 356 303 260 Comparative Example 1 232 182 122 211 163 111 Comparative Example 2 373 306 262 343 290 248 Comparative Example 3 227 174 118 208 160 109 Comparative Example 4 412 360 280 375 326 263 Comparative Example 5 290 221 209 268 199 192

Luminance non-uniformity Rainbow spot occurrence list Arm portion face side Example 10.8% 12.8% × × Comparative Example 1 12.7% 9.8% × × Comparative Example 2 36.5% 30.3% × × Comparative Example 3 10.7% 13.4% × × Comparative Example 4 75.2% 72.4% ○ ○ Comparative Example 5 11.2% 15.7% ◎ ◎

As shown in Tables 3 to 5, the module for a liquid crystal display of the present invention not only improved both the front contrast ratio and the side contrast ratio, but also reduced the brightness non-uniformity of the list portion and the dark portion, Respectively.

On the other hand, Comparative Examples 1 to 5 having different surface treatment configurations from the module for a liquid crystal display device of the present invention had poor front or side contrast ratio, high luminance non-uniformity, or iridescence.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (12)

A liquid crystal display device comprising: a liquid crystal panel; a first polarizer formed on an upper surface of the liquid crystal panel and having a hard coating layer formed on an uppermost surface thereof; and a second polarizer formed between the liquid crystal panel and the backlight unit, And a second polarizer plate,
When the front face of the liquid crystal panel is 0 °, the left side is the front side, and the right side is the front side, the contrast ratio in the + 70 ° to + 80 ° region or the -70 ° to -80 ° region is 250 to 400,
A module for a liquid crystal display device having a luminance non-uniformity of 15%
<Formula 1>
Luminance non-uniformity = (A - B) / A x 100
A is the maximum value of the luminance measured for each of the nine intersections generated by dividing the panel of the width x length (600 mm x 340 mm) into four quarters and four quarters, and B is the width x length (600 mm x 340 mm) Is the minimum of the luminance measured for each of the nine intersections generated by dividing the panel of the panel into four quarters and four quarters. The liquid crystal display according to claim 1, wherein the first polarizer comprises a first polarizer, a first protective film formed on an upper surface of the first polarizer, a hard coat layer formed on an upper surface of the first protective film, And a second protective film formed on the surface,
Wherein the laminate of the hard coating layer and the first protective film has a haze of 0.2% to 0.3%. The liquid crystal display according to claim 1, wherein the second polarizer comprises a second polarizer, a third protective film formed on a lower surface of the second polarizer, an antireflection layer formed on a lower surface of the third protective film, And a fourth protective film formed on the surface,
Wherein the laminate of the antireflection layer and the third protective film has a haze of 20% to 25%. The liquid crystal display module according to claim 1, wherein the hard coating layer has a refractive index of 1.46 to 1.47 and a surface roughness (Ra) of 200 nm to 300 nm. The module for a liquid crystal display device according to claim 1, wherein the difference between the refractive index of the hard coating layer and the refractive index of the antireflection layer is from 0.005 to 0.01. The module for a liquid crystal display device according to claim 1, wherein the antireflection layer has a reflectance of 5% to 15%. The module for a liquid crystal display device according to claim 1, wherein a contrast ratio is 300 to 400 at + 70 ° or -70 ° when the front face of the liquid crystal panel is 0 °. The module for a liquid crystal display device according to claim 1, wherein the contrast ratio is 300 to 350 at + 75 ° or -75 ° when the front face of the liquid crystal panel is 0 °. The module for a liquid crystal display device according to claim 1, wherein a lateral contrast ratio is from 250 to 300 at + 80 ° or -80 ° when the front face of the liquid crystal panel is 0 °. The liquid crystal display module according to claim 1, wherein a front contrast ratio of the liquid crystal panel is 1300 to 1500. The module for a liquid crystal display device according to claim 1, wherein the liquid crystal panel comprises a liquid crystal of an IPS (In Place Switching) mode. A liquid crystal display device comprising the liquid crystal display device module according to any one of claims 1 to 11.

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