KR20170112337A - Liquid crystal display device - Google Patents

Abstract

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device including a first substrate and a second substrate facing each other and a liquid crystal cell disposed therebetween; The first substrate includes a first column spacer positioned in at least a portion of a substrate film, an adhesive layer, a separation layer, a protective layer, a color filter layer positioned to correspond to a pixel region, an overcoat layer, a common electrode, and a non-pixel region; The second substrate includes a gate line and a data line crossing each other and defining a pixel region, a thin film transistor located in an intersection region of the gate line and the data line, and a pixel electrode connected to the thin film transistor, thereby providing excellent flexibility and cell gap uniformity To a liquid crystal display device.

Description

[0001] LIQUID CRYSTAL DISPLAY DEVICE [0002]

The present invention relates to a liquid crystal display device.

As the amount of information that the Internet becomes universal and communication explosively increases, an environment of "ubiquitous display" in which information can be accessed anytime and anywhere will be created in the future. Accordingly, notebooks and electronic notebooks And the role of portable displays such as PDAs have become important. In order to realize such a ubiquitous display environment, it is required that the display is portable so that information can be directly accessed at a desired time and place, and a large screen characteristic for displaying various multimedia information is also required. Accordingly, in order to satisfy such portability and large-screen characteristics simultaneously, there is a need to develop a display capable of being folded when a function as a display is given by giving flexibility to the display, and folded and stored when carrying.

A typical type of a flat panel display device widely used today is a liquid crystal display (LCD) and an organic light-emitting diode (OLED).

In a liquid crystal display device, a color filter is used for color implementation. The color filter used herein is formed by forming a black matrix formed on a glass substrate and forming red, green, blue and white patterns thereon.

However, since the glass substrate used in the color filter is large in weight and easily broken by a small external impact, the portability and the display characteristics of a large screen are limited. Therefore, a plastic substrate which is light in weight, strong in the first, and has a flexible characteristic is used.

Flexible display is a next generation display that can freely bend, bend or speak, and can be used in various forms such as mobile & portable display, wearable & fashionable display, and paper-like display. Since the application is possible, research and development are progressing continuously. Therefore, the substrate of various components constituting the flexible display is being replaced by a glass substrate and a plastic substrate made of a polymer material.

By using a flexible plastic substrate instead of the conventional glass substrate, it can have many advantages in terms of portability and safety as compared with the conventional glass substrate. In addition, from the viewpoint of processability, the plastic substrate can be manufactured by deposition or printing, which can lower the manufacturing cost, and unlike the conventional sheet unit process, the roll-to-roll process It is possible to manufacture a low cost display device through mass production.

However, since such a plastic substrate has a lower transition temperature than glass and has a high expansion ratio according to a temperature change, there is a problem that stacked layers may be destroyed or deformed. Particularly, since the substrate itself is flexible, there is a problem that the processes applied to the existing glass substrate can not be applied equally.

Korean Patent Laid-Open Publication No. 2014-0089767 discloses a flexible liquid crystal display device and a manufacturing method thereof.

Korean Patent Publication No. 2014-0089767

It is an object of the present invention to provide a liquid crystal display device having excellent flexibility and at the same time having a uniform cell gap.

1. A liquid crystal display comprising: a first substrate and a second substrate facing each other and a liquid crystal cell disposed therebetween;

The first substrate includes a first column spacer positioned in at least a portion of a substrate film, an adhesive layer, a separation layer, a protective layer, a color filter layer positioned to correspond to a pixel region, an overcoat layer, a common electrode, and a non-pixel region;

The second substrate includes a gate line and a data line crossing each other and defining a pixel region, a thin film transistor located in an intersection region of the gate line and the data line, and a pixel electrode connected to the thin film transistor.

2. The liquid crystal display of claim 1, further comprising a second column spacer positioned on the data line.

3. The liquid crystal display of claim 2, wherein the second column spacer is bar-shaped.

4. The liquid crystal display of claim 2, wherein the second column spacer has an opening spaced apart at a predetermined interval.

5. The liquid crystal display of claim 2, wherein the second column spacer is longer than the short side length of the sub-pixel.

6. The liquid crystal display of claim 1, wherein the color filter layer is located between black matrices positioned to correspond to non-pixel regions under the protection layer.

7. The liquid crystal display of claim 1, wherein the first column spacer is a black column spacer.

8. The liquid crystal display of claim 1, further comprising a black column spacer located on the thin film transistor.

9. The liquid crystal display of claim 8, wherein the black column spacer is an insulating layer disposed on the thin film transistor.

10. The liquid crystal display device of claim 1, further comprising at least one selected from the group consisting of a polarizing plate, a touch sensor, a touch panel integrated with a polarizing plate, and a window substrate on the base film.

11. forming a separation layer on a carrier substrate;

Forming a protective layer on the isolation layer;

Forming a color filter layer on the protective layer;

Forming an overcoat layer on the color filter layer;

Forming a common electrode on the overcoat layer;

Forming a first column spacer on the common electrode;

Peeling the separation layer from the carrier substrate; And

And bonding the base film to the separation layer to form a first substrate,

A second substrate having a gate line and a data line intersecting with the first substrate and defining a pixel region, a thin film transistor located at an intersection region of the gate line and the data line, and a pixel electrode connected to the thin film transistor, And a step of joining the first and second substrates with each other.

12. The method of manufacturing a liquid crystal display device according to claim 11, further comprising the step of forming a black matrix on the protective layer before formation of the color filter layer, wherein the color filter layer is formed in the region partitioned by the black matrix.

13. The method of claim 11, further comprising forming a second column spacer on the data line before the bonding.

14. The method of claim 11, further comprising forming a black column spacer on the thin film transistor before the bonding.

15. The method of manufacturing a liquid crystal display device according to 14 above, wherein the formation of the black column spacer is performed by forming an insulating layer on the thin film transistor with a black resin.

16. The method of manufacturing a liquid crystal display device according to 14 above, wherein said black column spacer formation forms a black resin layer on an insulating layer on a thin film transistor.

The liquid crystal display of the present invention has excellent flexibility and at the same time, it has excellent cell gap uniformity.

The method of manufacturing a liquid crystal display of the present invention can produce a liquid crystal display device having excellent flexibility without a problem of thermal instability.

1 is a schematic cross-sectional view of a liquid crystal display according to an embodiment of the present invention.
2 is a schematic perspective view of a first substrate, a liquid crystal cell, and a second substrate in a liquid crystal display device according to an embodiment of the present invention.
3 to 6 are schematic cross-sectional views of a liquid crystal display device according to an embodiment of the present invention.
7 to 14 are schematic process drawings of a method of manufacturing a liquid crystal display device according to an embodiment of the present invention.

The present invention provides a liquid crystal display comprising a first substrate and a second substrate facing each other and a liquid crystal cell disposed therebetween; The first substrate includes a first column spacer positioned in at least a portion of a substrate film, an adhesive layer, a separation layer, a protective layer, a color filter layer positioned to correspond to a pixel region, an overcoat layer, a common electrode, and a non-pixel region; The second substrate includes a gate line and a data line crossing each other and defining a pixel region, a thin film transistor located in an intersection region of the gate line and the data line, and a pixel electrode connected to the thin film transistor, thereby providing excellent flexibility and cell gap uniformity To a liquid crystal display device.

Hereinafter, the present invention will be described in detail.

The liquid crystal display of the present invention includes a first substrate and a second substrate facing each other and a liquid crystal cell disposed therebetween. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described with reference to the drawings.

The liquid crystal display typically includes a color filter substrate, a liquid crystal cell 200 and a TFT array substrate. In the present invention, the first substrate 100 serves as a color filter substrate, a TFT array substrate of the second substrate 300 .

Specifically, the first substrate includes a substrate film 110, an adhesive layer 120, a separation layer 130, a protective layer 140, a color filter layer 150 disposed to correspond to a pixel region, a color filter layer 150, an overcoat layer 160 A common electrode 170, and a first column spacer 180 positioned at least in a region corresponding to the boundary of the pixel region.

The base film 110 may be any of those usually used for optical transparent films, but it is preferable to use a film excellent in flexibility, transparency, thermal stability, moisture barrier property, uniformity of phase difference, isotropy and the like. By using the base film, the color filter layer 150 can be prevented from being damaged at the time of manufacture, transportation and storage, and can be easily handled. Specific examples include polyacrylates, polymethacrylates (e.g., PMMA), polyimides, polyamides, polyamic acids, polyvinyl alcohols, polyolefins (e.g., PE, PP), polystyrene, polynorbomene, , Polyazobenzene, polyester (e.g., PET, PBT), polyarylate, polyphthalimidine, polyphenylene phthalamide, polyvinyl cinnamate, polycinnamate, coumarin polymer, chalcone polymer, aromatic acetylene polymer , A phenylmaleimide copolymer, a copolymer thereof, and a blend thereof.

The adhesive layer 120 is a layer that allows the base film 110 and the separation layer 130 to adhere to each other.

The adhesive layer 120 may be formed on one side of the base film or the separation layer 130 in the form of a coating composition or may be laminated in a film state.

The material of the adhesive layer 120 is not particularly limited in the present invention, and may be polyacrylate, epoxy resin or the like which is generally used.

The laminated structure of the first substrate 100 according to the present invention is manufactured by separating the manufactured first substrate 100 from the carrier substrate 10 while the manufacturing process is proceeding on the carrier substrate 10, 130 are layers formed for separation from the carrier substrate 10.

The separation layer 130 covers the color filter after separation from the carrier substrate 10, and becomes a layer for protecting the color filter.

The separation layer 130 may be a polymer organic film, for example, a polyimide-based polymer, a polyvinyl alcohol-based polymer, a polyamic acid-based polymer, a polyamide-based polymer , A polymer based on polyethylene, a polymer based on polystyrene, a polymer based on polynorbornene, a polymer based on phenylmaleimide copolymer, a polymer based on polyazobenzene, a polymer based on polyphenylene phthalamide based polymer, a polyphenylenephthalamide-based polymer, a polyester-based polymer, a polymethyl methacrylate-based polymer, a polyarylate-based polymer, a cinnamate-based polymer, a coumarin- A phthalimidine-based polymer, a chalcone-based polymer, and an aromatic acetylene-based polymer may be used. However, One that does not. These may be used alone or in combination of two or more.

The separating layer 130 should be able to be separated from the glass substrate for manufacturing the color filter layer 150 by a physical force, and after the separation, be laminated with the base film through the adhesive layer 120 described above. Therefore, the separating layer 130 may have a peeling force of 5 N / 25 mm or less, preferably 1 N / 25 mm or less, more preferably 0.1 N / 25 mm or less, and a surface energy of 30 to 70 mN / m. < / RTI > The surface energy is an element related to the contact angle. When the surface energy after peeling is within the above range, the surface energy is low and the adhesive property can be improved due to the excellent coating property upon application of the adhesive layer composition.

The thickness of the isolation layer 130 may be, for example, 1 to 1000 nm, preferably 1 to 100 nm.

The protective layer 140 covers the color filter in the same manner as the separation layer 130 and functions to prevent the color filter from being contaminated and the color filter from being broken when separated from the carrier substrate 10. [

As the protective layer 140, a polymer known in the art may be used without limitation, for example, the material of the organic insulating layer 370 may be used without limitation.

Further, the protective layer 140 may be made of an inorganic material. For example, an inorganic oxide, an inorganic nitride, or the like. Examples of the inorganic oxide include silicon oxide, alumina, and titanium oxide. Examples of the inorganic nitride include silicon nitride and titanium nitride. It may preferably be silicon oxide in view of realizing a high transmittance.

The color filter layer 150 is a layer for color implementation, and includes red, green, and blue patterns.

The color filter layer 150 is positioned to correspond to a pixel region of the second substrate 300, which will be described later, and the red, green, and blue patterns correspond to the sub pixel regions, respectively.

The overcoat layer 160 corrects the level difference of the color filter layer 150 and improves the flatness.

The material of the overcoat layer 160 is not particularly limited as long as it is an organic insulating material, and may be, for example, polyacrylate, polyimide, polyester, or the like.

The common electrode supplies a common voltage that is a reference for driving the liquid crystal.

As the common electrode 170, any conductive material may be used without limitation including indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (IZTO), aluminum zinc oxide (AZO) (ITO-Ag-ITO), indium zinc oxide-silver-indium zinc oxide (IZO-Ag-IZO), indium zinc tin oxide (GZO), florine tin oxide (FTO), indium tin oxide Metal oxide materials selected from the group consisting of oxide-silver-indium zinc tin oxide (IZTO-Ag-IZTO) and aluminum zinc oxide-silver-aluminum zinc oxide (AZO-Ag-AZO); Metals selected from the group consisting of gold (Au), silver (Ag), copper (Cu), molybdenum (Mo) and APC; Nanowires of metals selected from the group consisting of gold, silver, copper and lead; Carbon-based materials selected from the group consisting of carbon nanotubes (CNT) and graphene; And conductive polymer materials selected from the group consisting of poly (3,4-ethylenedioxythiophene) (PEDOT) and polyaniline (PANI). These materials may be used alone or in combination of two or more.

The first column spacer 180 serves to maintain a constant cell gap between the first substrate 100 and the second substrate 300.

The first column spacers 180 are located at least in part of the non-pixel regions.

That is, the boundary of the pixel region and the boundary of the sub pixel region. For example, since the above-described color filter layer 150 is positioned to correspond to the pixel region, the first column spacer can be positioned to correspond to each color pattern of the color filter layer 150, The black matrix 190 may be located in a region corresponding to the black matrix 190.

The shape of the first column spacer 180 is not particularly limited and may be, for example, a polygonal shape such as a triangular shape, a square shape, a pentagonal shape, a hexagonal shape, a circular shape, an elliptical shape,

The material of the first column spacer 180 is not particularly limited as long as it is an organic insulating material, and may be, for example, polyacrylate, polyimide, polyester, or the like, preferably the same material as the overcoat layer 160.

The second substrate 300 includes a gate line and a data line that intersect with each other to define a pixel region, a thin film transistor located at an intersection of the gate line and the data line, and a pixel electrode 340 located in the pixel region.

The gate line and the data line intersect each other to define a plurality of pixel regions.

The gate line supplies a scan signal from a gate driver (not shown), and the data line supplies a video signal from a data driver (not shown).

The gate line and the data line may be formed of the above-described conductive material independently of each other.

If desired, the liquid crystal display of the present invention may further include a second column spacer 380 located at least on a portion of the data line.

As described above, the liquid crystal display of the present invention can exhibit excellent flexibility because the first substrate 100, which is a color filter substrate, does not include a glass substrate. However, when a bending is applied, a certain cell gap is not maintained in a portion where there is no column spacer, and the uniformity of luminance may be lowered.

However, according to the present invention, by providing the second column spacer 380, the area of the spacer can be increased, and the same cell gap can be maintained to increase the uniformity of brightness.

The second column spacer 380 may have the shape and the material exemplified by the shape and the material of the column spacer described above.

The second column spacer 380 may be positioned in the form of a bar on the data line in view of increasing the area compared to the spacer of the conventional circular shape.

The length of the second column spacer 380 may be greater than or equal to the short side length of the sub-pixel. In such a case, the area of the spacer is increased, which is preferable for maintaining the cell gap.

In addition, the second column spacer 380 may have openings at predetermined intervals as illustrated in FIG. 2 so that the liquid crystal can smoothly flow therebetween.

A thin film transistor is located at an intersection of the gate line and the data line.

The thin film transistor allows the video signal on the data line to be charged and held in the pixel electrode 340 in response to the scan signal of the gate line. The thin film transistor includes a gate electrode 310 connected to the gate line, a source electrode 350 connected to the data line, and a drain electrode 360 electrically connected to the pixel electrode 340.

A gate insulating layer 320 is disposed on the entire upper surface of the gate electrode 310. The gate insulating layer 320 may be formed of silicon oxide or silicon nitride.

An active layer 330 is positioned on the gate insulating layer 320 in correspondence with the gate electrode 310. Here, the active layer 330 may be formed of amorphous silicon, and an ohmic contact layer made of amorphous silicon doped with impurities may be further formed on the active layer 330.

The active layer 330 may be formed of an oxide semiconductor material.

The pixel electrode 340 is located in a pixel region above the gate insulating layer 320. The pixel electrode 340 may be formed of the conductive material described above.

A source electrode and a drain electrode 360, which are spaced apart from each other and overlap the active layer 330, are formed on the active layer 330. Here, the drain electrode 360 also overlaps and contacts a part of the pixel electrode 340. The source electrode and the drain electrode 360 may be formed of the conductive material described above.

An insulating layer 370 may be disposed on the source electrode and the drain electrode 360.

If desired, a third column spacer 390 may be located on the thin film transistor, as illustrated in FIG.

The third column spacer 390 can assist in maintaining the cell gap.

Specifically, the third column spacer 390 may be located on the insulating layer 370 of the thin film transistor.

The third column spacer 390 may have the shape and the material exemplified by the shape and the material of the column spacer described above.

Further, the liquid crystal display device of the present invention includes a light-shielding layer for improving external light reflection and contrast ratio. This may be a black matrix 190 or a black column spacer, and since it acts as a light shield, it can be selectively included in either.

The black matrix 190 and the black column spacer are located in regions corresponding to the non-pixel regions.

Specifically, when the liquid crystal display device of the present invention includes the black matrix 190, the black matrix is located in a region corresponding to the non-pixel region under the protective layer 140. Specifically, it can be located in the region corresponding to the boundary of the pixel region and the boundary of the sub pixel region. In such a case, the color filter layer 150 is positioned between the black matrices under the protective layer 140. 1 to 3 illustrate cases in which a black matrix 190 is included.

In the case where the liquid crystal display of the present invention includes a black column spacer, the first column spacer 180 may be a black column spacer formed of a black resin as illustrated in FIG. 4, The third column spacer 390 positioned on the first column spacer 390 may be a black column spacer formed of black resin and the insulating layer 370 on the thin film transistor may be formed as shown in FIG. It can be formed as a resin to serve as a black column spacer (not shown in the figure).

In addition, the liquid crystal display device of the present invention may further include an additional configuration on the base film 110.

For example, a polarizing plate, a touch sensor, a polarizing plate-integrated touch sensor, a window substrate, and the like, but is not limited thereto.

The present invention also provides a method of manufacturing the liquid crystal display device.

Hereinafter, a method of manufacturing a liquid crystal display device according to an embodiment of the present invention will be described with reference to the drawings.

First, as illustrated in FIG. 7, a separation layer 130 is formed on the carrier substrate 10.

The carrier substrate 10 may be used without any particular limitation if it is a material that provides adequate strength to be fixed without being bent or twisted during the process, and has little influence on heat or chemical treatment. For example, glass, quartz, silicon wafer, cloth or the like can be used, and preferably, glass can be used.

The separation layer 130 may be formed of the above-described polymer material.

The method for forming the separation layer 130 is not particularly limited and may be any one of a slit coating method, a knife coating method, a spin coating method, a casting method, a micro gravure coating method, a gravure coating method, a bar coating method, A dip coating method, a spray coating method, a screen printing method, a gravure printing method, a flexo printing method, an offset printing method, an ink jet coating method, a dispenser printing method, a nozzle coating method, Can be done.

Next, as illustrated in FIG. 8, a protective layer 140 is formed on the isolation layer 130.

The protective layer 140 may be formed of the above-described material and the method of forming the protective layer 140 is not particularly limited. The protective layer 140 may be formed by physical vapor deposition, chemical vapor deposition, plasma deposition, plasma polymerization, thermal vapor deposition, thermal oxidation, A printing method, a gravure printing method, a flexo printing method, an offset printing method, an ink jet coating method, a dispenser printing method, and the like.

Thereafter, as illustrated in FIG. 9, a color filter layer 150 is formed on the protective layer 140.

The color filter layer 150 is formed in the pixel region, and red, green, and blue patterns are formed in each sub pixel region.

The color filter layer 150 can be formed by coating the colored photosensitive resin composition with the above-described method, and exposing and curing the colored photosensitive resin composition.

Thereafter, an overcoat layer 160 is formed on the color filter layer 150, as illustrated in FIG.

The overcoat layer 160 is for protecting and planarizing the color filter layer 150 and may be formed over the entire surface of the color filter layer 150.

The overcoat layer 160 may be formed by the above-described material and method.

Then, the common electrode 170 is formed on the overcoat layer 160 as illustrated in FIG.

The common electrode 170 may be formed over the entire surface of the overcoat layer 160 with the conductive material described above. The method for forming the protective layer 140 is not particularly limited, and for example, the protective layer 140 may be formed by the method described in the method for forming the protective layer 140.

Thereafter, a first column spacer 180 is formed on the common electrode 170, as illustrated in FIG.

The first column spacers 180 are formed in at least a part of the non-pixel regions.

The first column spacer 180 can be formed on at least a part of the non-pixel region by selectively coating and curing the photosensitive resin composition on the common electrode 170 by the above-described method.

Thereafter, the separation layer 130 is peeled from the carrier substrate 10 as illustrated in Fig.

An adhesive film having a peeling force equal to or greater than the peeling force of the separation layer 130 with respect to the carrier substrate 10 may be attached and peeled off on the common electrode 170 on which the first column spacer 180 is formed. The adhesive film can be removed after peeling.

Thereafter, the base film 110 is adhered to the separation layer 130 as illustrated in FIG.

The base film 110 may be adhered with a photo-curable adhesive such as an epoxy or acrylic adhesive known in the art.

1 can be obtained by bonding the first substrate 100 including the above process to the second substrate 300 with the liquid crystal cell 200 interposed therebetween.

The second substrate 300 may include a gate line and a data line which intersect with each other to define a pixel region, a thin film transistor located at an intersection region of the gate line and the data line, and a pixel electrode 340 connected to the thin film transistor .

The thin film transistor allows the video signal on the data line to be charged and held in the pixel electrode 340 in response to the scan signal of the gate line. The thin film transistor includes a gate electrode 310 connected to the gate line, a source electrode 350 connected to the data line, and a drain electrode 360 electrically connected to the pixel electrode 340.

In addition, the thin film transistor has a plurality of insulating films for insulation between the elements, and a conductive channel between the source electrode 350 and the drain electrode 360 by a gate voltage supplied to the gate electrode 310. [ Lt; RTI ID = 0.0 > 330 < / RTI >

If necessary, the method of manufacturing a liquid crystal display of the present invention may further include forming a second column spacer 380 on the data line before bonding the second substrate 300.

The second column spacer 380 may have the shape and the material exemplified by the shape and the material of the column spacer described above.

In terms of increasing the area of the spacers, the second column spacers 380 may preferably be placed in a bar shape on the data lines.

The length of the second column spacer 380 may be greater than or equal to the short side length of the sub-pixel. In such a case, the area and the number of the spacers are increased, which is preferable for maintaining the cell gap.

In addition, the second column spacer 380 may have openings at predetermined intervals as illustrated in FIG. 2 so that the liquid crystal can smoothly flow therebetween.

In addition, the method of manufacturing a liquid crystal display of the present invention may further include forming a third column spacer 390 on the thin film transistor before the bonding.

The second and third column spacers 390 may be formed independently of each other as a material of the first column spacer 180 by the method exemplified by the method of manufacturing the first column spacer 180.

The method of manufacturing a liquid crystal display device of the present invention further includes forming a light shielding layer. Specifically, the light-shielding layer may be a black matrix 190 or a black column spacer.

When the light shielding layer is a black matrix 190, the method of manufacturing a liquid crystal display of the present invention further includes forming a black matrix 190 on the protective layer 140 before forming the color filter layer 150 .

The black matrix 190 may be formed in the non-pixel region. The black matrix 190 may be formed by coating the light-shielding resin composition on the protective layer 140 by the above-described method, and selectively exposing and curing the composition. In such a case, the color filter layer 150 is formed in the pixel region partitioned by the black matrix 190.

When the light-shielding layer is a black column spacer, in the method of manufacturing a liquid crystal display of the present invention, the insulating layer 370 on the thin film transistor of the second substrate 300 is formed of a light- Can serve as a black column spacer. Further, a third column spacer 390 may be formed of a light-shielding resin on the insulating layer 370 on the thin film transistor.

The method of manufacturing a liquid crystal display device of the present invention may further include the step of disposing an additional configuration on the base film 110.

For example, a polarizing plate, a touch sensor, a polarizing plate-integrated touch sensor, a window substrate, and the like, but is not limited thereto.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that such variations and modifications are within the scope of the appended claims.

10: carrier substrate 100: first substrate
110: base film 120: adhesive layer
130: isolation layer 140: protective layer
150: color filter layer 160: overcoat layer
170: common electrode 180: first column spacer
190: black matrix 200: liquid crystal cell
300: second substrate 310: gate electrode
320: gate insulating layer 330: active layer
340: pixel electrode 350: source electrode
360: drain electrode 370: insulating layer
380: Second column spacer 390: Third column spacer
GL: gate line DL: data line
LC: liquid crystal

Claims (16)

A first substrate and a second substrate facing each other and a liquid crystal cell disposed therebetween;
The first substrate includes a first column spacer positioned in at least a portion of a substrate film, an adhesive layer, a separation layer, a protective layer, a color filter layer positioned to correspond to a pixel region, an overcoat layer, a common electrode, and a non-pixel region;
The second substrate includes a gate line and a data line crossing each other and defining a pixel region, a thin film transistor located in an intersection region of the gate line and the data line, and a pixel electrode connected to the thin film transistor.
The liquid crystal display of claim 1, further comprising a second column spacer positioned on the data line.
The liquid crystal display of claim 2, wherein the second column spacer is bar-shaped.
The liquid crystal display of claim 2, wherein the second column spacer has an opening spaced apart at a predetermined interval.
The liquid crystal display of claim 2, wherein the second column spacer has a length shorter than the short side length of the sub pixel.
The liquid crystal display of claim 1, wherein the color filter layer is located between black matrices positioned to correspond to non-pixel regions under the protection layer.
The liquid crystal display of claim 1, wherein the first column spacer is a black column spacer.
The liquid crystal display of claim 1, further comprising a black column spacer located on the thin film transistor.
The liquid crystal display of claim 8, wherein the black column spacer is an insulating layer of a thin film transistor.
The liquid crystal display of claim 1, further comprising at least one selected from the group consisting of a polarizing plate, a touch sensor, a touch sensor integrated with a polarizing plate, and a window substrate on the base film.
Forming a separation layer on the carrier substrate;
Forming a protective layer on the isolation layer;
Forming a color filter layer on the protective layer;
Forming an overcoat layer on the color filter layer;
Forming a common electrode on the overcoat layer;
Forming a first column spacer on the common electrode;
Peeling the separation layer from the carrier substrate; And
And bonding the base film to the separation layer to manufacture a first substrate,
A second substrate having a gate line and a data line intersecting with the first substrate and defining a pixel region, a thin film transistor located at an intersection region of the gate line and the data line, and a pixel electrode connected to the thin film transistor, And a step of joining the first and second substrates with each other.
12. The method of manufacturing a liquid crystal display device according to claim 11, further comprising forming a black matrix on the protective layer before forming the color filter layer, and forming a color filter layer in a region partitioned by the black matrix.
12. The method of claim 11, further comprising forming a second column spacer on the data line before the bonding.
12. The method of claim 11, further comprising forming a black column spacer on the thin film transistor before the bonding.
15. The method of manufacturing a liquid crystal display device according to claim 14, wherein the black column spacer is formed of a light-shielding resin as an insulating layer of the thin film transistor.
15. The method of manufacturing a liquid crystal display device according to claim 14, wherein the black column spacer is formed on an insulating layer on a thin film transistor.

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