KR20170036162A - Touch type liquid crystal display device - Google Patents

Abstract

The objective of the present invention is to provide a method minimizing moving of a liquid crystal display (LCD) in an edge part of a touch type LCD device, so as to solve a touch water ripple effect. To this end, the LCD device comprises: an LCD panel in which a display region and an in-seal non-display region with a first width insides a seal pattern are defined; and a dummy column spacer spaced apart from the seal pattern inside the in-seal non-display region and disposed in a dam region with a second width. The second width is 55 to 75% of a ratio with respect to the first width. Accordingly, the width of the dam region is maximally increased to minimize a separation distance between the seal pattern and the dummy column spacer, moving of the LCD can be minimized in an edge during touch action, so the touch water ripple effect caused from the moving of the LCD can be solved.

Description

[0001] The present invention relates to a touch type liquid crystal display device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch-type liquid crystal display, and more particularly, to a touch-type liquid crystal display capable of minimizing a liquid crystal flow during a touch to improve a touch water ripple phenomenon.

2. Description of the Related Art [0002] As an information society develops, there has been a growing demand for display devices for displaying images. Recently, liquid crystal display devices (LCDs), plasma display panels (PDPs) Various flat display devices such as an organic light emitting diode (OLED) have been utilized.

Of these flat panel display devices, liquid crystal display devices have the advantages of miniaturization, weight reduction, thinning, and low power driving, and are currently most commonly used.

Recently, a smart phone or a tablet has become widespread, and a touch-type liquid crystal display device to which a touch panel, which is a touch device for realizing a touch function, is added to a liquid crystal display device is being released.

However, in a touch-type liquid crystal display device, a liquid crystal flow occurs due to a touch operation. In particular, a liquid crystal flow is concentrated at an edge portion of the liquid crystal panel to cause a so-called touch water ripple phenomenon.

In this regard, the liquid crystal is concentrated on the edge portion of the liquid crystal panel at the time of user touch (i.e., pushing), and the stress is concentrated, and the restoring force is concentrated on the edge portion at the time of the touch release , The liquid crystal alignment is disturbed at the edge portion of the liquid crystal panel due to the user touch operation, and a touch water ripple phenomenon is caused in which a moiré pattern is generated in the edge portion.

Particularly, in recent years, there has been a tendency to implement a so-called narrow bezel in which the width of a non-display region of a liquid crystal display device is reduced. In this case, a liquid crystal flow toward an edge portion of the liquid crystal panel is more concentrated, The more the phenomenon becomes.

Disclosure of the Invention Problems to be solved by the Invention The present invention has a problem in that it is possible to minimize the liquid crystal flow at the edge portion in the touch-type liquid crystal display device, thereby improving the touch water ripple phenomenon.

In order to achieve the above-described object, the present invention provides a liquid crystal display device comprising a liquid crystal panel in which a non-display area within a seal having a display area and a first width inside a seal pattern is defined, And a dummy column spacer disposed in a dam region having a first width and a second width, wherein the second width has a ratio of 55% to 75% of the first width.

Here, the dummy column spacer may include at least one of a dummy cell gap column spacer and a dummy column spacer, and the density of the dummy column spacer may be higher than that of the column spacer.

The color filter substrate includes R, G and B color filter patterns located on the black matrix of the display area, a dummy color filter pattern located on the black matrix of the non-display area in the seal corresponding to the dam area, G, B color filter pattern and an overcoat layer positioned on the dummy color filter pattern.

Further, the dummy color filter pattern may extend to the inside of the seal pattern, and the dummy color filter pattern may be made of the B color filter material.

On the other hand, the cell gap column spacer of the column spacer may be distributed at a density of 260 to 280 ppm, and the total area density of the column spacer may be 3.32 to 3.92% of the display area.

In the touch-type liquid crystal display device according to the present invention, the width of the dam region, which is an area for arranging the dummy column spacers, in the non-display area of the seal between the seal pattern and the display area is maximally increased, Thereby minimizing the separation distance. Accordingly, it is possible to minimize the liquid crystal flow at the edge during the touch operation, thereby improving the touch water ripple phenomenon caused by the liquid crystal flow.

Further, by forming the dummy color filter pattern on the color filter substrate with respect to the non-display area in the seal, the surface of the non-display area and the display area in the seal can be formed substantially flat. This prevents the liquid crystal flow caused by the occurrence of a step between the non-display area and the display area in the seal and further reduces the liquid crystal flow at the edge during the touch operation, thereby further improving the touch water ripple phenomenon.

In addition, the density of the column spacer in the display area can be increased as compared with the prior art, so that the proof stress of the liquid crystal panel against an external force such as a touch operation can be enhanced. Accordingly, it is possible to reduce the fluidity of the liquid crystal during the touch operation, and as a result, the touch water ripple phenomenon at the edge can be further improved.

1 is a plan view schematically showing a liquid crystal panel of a touch-type liquid crystal display device according to an embodiment of the present invention.
Figs. 2 to 5 are enlarged views of a part of the first to fourth non-display areas NA1 to NA4, respectively.
6 is a cross-sectional view schematically showing a part of a touch-type liquid crystal display device according to an embodiment of the present invention.

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

In the touch-type liquid crystal display device according to the embodiment of the present invention, a dam (dam) which is an area for arranging dummy column spacers in a non-display area portion between the seal pattern and the display area ) Area (i.e., the area of the dam area) as much as possible, thereby minimizing the separation distance between the seal pattern and the dummy column spacers. Thus, by maximally increasing the area of the dummy column spacer functioning as a means for obstructing the liquid crystal flow, it is possible to minimize the liquid crystal flow at the edge at the time of touch operation, so that the touch water ripple phenomenon caused by the liquid crystal flow .

Further, by forming the dummy color filter pattern on the color filter substrate with respect to the non-display area in the seal, the surface of the non-display area and the display area in the seal can be formed substantially flat. This prevents the liquid crystal flow caused by the occurrence of a step between the non-display area and the display area in the seal, thereby further reducing the liquid crystal flow at the edge during the touch operation, thereby further improving the touch water ripple phenomenon.

In addition, the density of the column spacer in the display area can be increased as compared with the prior art, so that the proof stress of the liquid crystal panel against an external force such as a touch operation can be enhanced. Accordingly, it is possible to reduce the fluidity of the liquid crystal during the touch operation, and as a result, the touch water ripple phenomenon at the edge can be further improved.

Hereinafter, a touch-type liquid crystal display device in which the above-described characteristic features for reducing the liquid crystal flow are reflected will be described in more detail.

1 is a plan view schematically illustrating a liquid crystal panel of a touch-type liquid crystal display device according to an embodiment of the present invention.

1, a liquid crystal panel 100 of a liquid crystal display (LCD) according to an embodiment of the present invention includes an array substrate 110 on which array elements including thin film transistors as switching elements are formed, And a liquid crystal layer (refer to 150 in FIG. 6) filled between the array substrate 110 and the color filter substrate 160. The color filter substrate 160 may include a color filter substrate,

On the other hand, a touch panel (see 300 in FIG. 6) as a touch element may be attached to the outer surface of the color filter substrate 160, that is, the display surface.

The liquid crystal panel 100 is provided with a display area AA in which a pixel area (P in Figs. 2 to 5) is arranged in a matrix form to display an image and a non-display area NA around the display area AA, Is defined. Here, for convenience of description, the non-display areas NA located on the upper side, the lower side, the left side, and the right side in the drawing are referred to as first, second, third, and fourth non-display areas NA1, NA2, NA3, and NA4, respectively .

Although not specifically shown, a plurality of gate wirings and data wirings are formed in the display area AA of the array substrate 110 so as to define pixel regions crossing each other. Each pixel region is provided with a thin film transistor connected to a corresponding gate wiring and a data wiring, and a pixel electrode connected to a drain electrode of the thin film transistor to receive a data voltage.

On the other hand, a common electrode may be formed on the array substrate 110 to apply a common voltage for liquid crystal driving to form an electric field with the pixel electrode. As described above, the liquid crystal panel 100, in which the pixel electrodes and the common electrodes are all disposed on the array substrate 110 and the liquid crystal is driven by the electric field generated therebetween, is formed by an in-plane switching (IPS) -performance IPS) method.

For example, a TN (twisted nematic) method or a VA (vertical alignment) method in which the common electrode is formed on the color filter substrate 160 may be used. Type liquid crystal panel may be used.

As described above, as the liquid crystal panel 100 of the present embodiment, all kinds of liquid crystal panels can be used.

A color filter pattern is formed in the display area AA of the color filter substrate 160 facing the array substrate 110 with the liquid crystal layer interposed therebetween in correspondence with each pixel region. 2 to 6, when R (red), G (green), and B (blue) pixel regions P are used, R, G, and B Color filter patterns Cr, Cg and Cb are arranged.

A black matrix (see BM in FIG. 6) is formed between neighboring pixel regions in the display area AA of the color filter substrate 160 to form gate lines, data lines, And cover the thin film transistor. Then, the black matrix is positioned below the color filter pattern.

The color filter substrate 160 may be formed to have a smaller area than the array substrate 110. In this embodiment, the array substrate 110 is bonded to the color filter substrate 160 As shown in Fig. At this time, in the second non-display area NA2 of the array substrate 110, which is not covered by the color filter substrate 160 but protruded outward, a driving signal for driving the liquid crystal panel 100 is applied And the second non-display area NA2 of the array substrate 110 on which the driver IC DIC is exposed in the case of a chip on glass (COG) method.

A seal pattern 200 (not shown) formed in the non-display area NA and spaced apart from the display area AA in a form surrounding the display area AA is formed between the edge of the array substrate 110 and the color filter substrate 160 . The seal pattern 200 functions to couple the array substrate 110 and the color filter substrate 160 while sealing the liquid crystal within the liquid crystal panel 100.

A dam area DA in which a dummy column spacer CSd is formed is disposed in a non-display area NAS within a seal corresponding to a non-display area NA portion between the seal pattern 200 and the display area AA. According to the present embodiment, by increasing the width w2 or the area occupied by the dam area DA in the non-display area NAS in the seal, the liquid crystal flow at the edge of the liquid crystal panel 100 during the touch operation can be reduced .

More specifically, in this embodiment, when the width w1 of the non-display area NAS in the seal is assumed to be 100%, the width w1 of the dam area DA is approximately 55% to 75% , And it is most preferable to design it to approximately 65%. On the other hand, conventionally, the width of the dam region is designed to be about 28% lower than the non-display region in the seal.

In this way, the area occupied by the dummy column spacer, which acts as an obstacle to the liquid crystal flow, becomes small due to the relatively small width of the dam region. Therefore, the liquid crystal flow is concentrated in the non-display area in the narrow-width seal to cause the touch water ripple phenomenon.

On the other hand, in this embodiment, the area w2 of the dam area DA is increased to a considerable extent by the dummy column spacer CSd serving as the obstacle to the liquid crystal flow. Accordingly, the liquid crystal flow at the edge of the liquid crystal panel 100 during the user touch operation can be reduced to a considerable level, thereby alleviating the concentration of the liquid crystal to the edge, thereby improving the touch water ripple phenomenon caused by the liquid crystal flow .

In particular, with respect to the width w2 of the dam area DA of the present embodiment, this also considers the liquid crystal filling margin. That is, if the dam area DA is increased up to 100% of the width w2, the liquid crystal filling margin is lowered. Therefore, by designing the dam area DA at about 55% to 75% The liquid crystal flow can be minimized within the allowable range of the liquid crystal filling margin.

The dummy column spacer CSd formed in the dam region DA according to the present embodiment is configured in the form of at least one of a cell gap spacer for holding the cell gap of the liquid crystal panel 100 and a pressed column spacer .

In this regard, the cell gap column spacer is formed as a column spacer having a height corresponding to the cell gap between the two substrates 110 and 160 so that the lower surface and the upper surface are in direct contact with the array substrate 110 and the color filter substrate 160, respectively , And a column spacer having a cell gap maintaining function. The pressed column spacer is a column spacer which contacts one of the two substrates 110 and 160 and is spaced apart from the remaining one by a certain distance and has a height substantially smaller than the cell gap. The column spacer serves as an auxiliary means for the cell gap spacer, And corresponds to a column spacer having a function of alleviating an external force. In particular, the cell gap column spacer directly comes into contact with the array substrate and the color filter substrate 110 and 160, so that direct damage to these substrates can occur when an external force is applied. In order to mitigate this, a pressed column spacer can be used.

6, the cell gap column spacer CS1 and the pressed column spacer CS2 may be disposed in combination in the display area AA, and in some cases, the cell gap column spacer CS1 alone may be disposed in the display area AA, As shown in FIG.

Here, the dummy column spacer CSd of this embodiment may be constituted by a dummy cell gap column spacer (see CSd1 in Fig. 6), a dummy pressing column spacer (see CSd2 in Fig. 6) .

At this time, it is preferable that the dummy pressing column spacer is used alone or in combination with the dummy cell gap column spacer.

In this connection, the use of the dummy pressing column spacer can alleviate the substrate damage by the dummy cell gap column spacer.

Also, as the dummy pressing column spacer has a relatively low height, the contact area with the liquid crystal is larger than that of the dummy cell gap column spacer. As a result, the dummy pressing column spacer has a function of preventing the liquid crystal flow from being superior to the dummy cell gap column spacer. Therefore, when the dummy pressing column spacer is used alone or at a higher ratio, the effect of preventing the liquid crystal flow in the dam area DA is further enhanced, and as a result, the touch water ripple phenomenon caused by the liquid crystal flow is more effectively improved .

Further, the density of the dummy column spacer CSd can be made higher than that of the column spacer in the display area AA. In this way, the liquid crystal flow in the non-display area NAS in the seal is relatively lowered, and the touch water ripple phenomenon caused by the liquid crystal flow can be reduced. Here, the densities of the dummy column spacer (CSd) and the column spacer may be the number density and / or the area density, the number density means the number of units arranged per unit area, and the area density means the area occupied per unit area.

On the other hand, in this embodiment, a dummy color filter pattern (see Cd in Fig. 6) is formed in the non-display area NAS in the seal. Such a dummy color filter pattern is formed on a black matrix (see BM in Fig. 6) located in the non-display area NAS in the seal. As a result, the display area AA and the surface of the color filter substrate 160 of the non-display area NAS in the seal adjacent thereto form a substantially flat surface. That is, the dummy color filter pattern of the non-display area NAS in the seal and the surface of the overcoat layer (refer to 180 in Fig. 6) located on the color filter pattern of the display area AA are formed in the area between the two areas NAS and AA No step is generated at the boundary, and a flat screen is formed.

In this regard, conventionally, a dummy color filter pattern is not used, a step is generated at the boundary between the non-display area and the display area in the seal, and the liquid crystal flow becomes large due to this step. That is, the cell gap of the non-display area within the seal is larger than that of the display area due to the step, so that the supporting force by the dummy column spacer decreases, the liquid crystal volume of the non-display area within the seal becomes relatively large, and the liquid crystal fluidity is high.

On the other hand, in the present embodiment, the dummy color filter pattern is formed as the step difference compensation pattern, and substantially no step is present at the boundary between the non-display area NAS and the display area AA in the seal. As a result, the supporting force of the dummy column spacer CSd is increased and the liquid crystal volume of the non-display area NAS in the seal is reduced, so that the liquid crystal flow due to the conventional step difference is reduced and the touch water ripple phenomenon can be improved .

2 to 5 can be referred to in connection with the dummy color filter pattern. FIGS. 2 to 5 are enlarged partial plan views of the first to fourth non-display areas NA1 to NA4, respectively.

2 to 5, in the first to fourth non-display areas NA1 to NA4, the dummy color filter pattern Cd extends to the outer end of the dam area DA to cover the dam area DA, 200, respectively. In this case, the dummy color filter pattern CFd may be formed to extend to the inside of the seal pattern 200, that is, outside the non-display area NAS in the seal. In this case, the display area AA and the non-display area NAS ) Is further increased and the liquid crystal fluidity can be further reduced.

As the dummy color filter pattern Cd, one of the R, G, and B color filter patterns Cr, Cg, and Cb, which is a plurality of color filter patterns disposed in the display area AA, is used. In view of the light leakage side through the non-display area NA, it is preferable to use a B color filter material having low visibility among R, G, and B color filter materials. In this case, Can be minimized.

On the other hand, the dummy color filter pattern Cd may be integrally formed in a form extending from the color filter pattern Cb of the display area AA made of the same color filter material.

On the other hand, as described above, a column spacer (see CS in FIG. 6) is disposed in the display area AA. The column spacer in the display area AA includes a cell gap column spacer (see CS1 in FIG. 6) A column spacer (see CS2 in Fig. 6) may be used.

Particularly, in this embodiment, the density of the column spacer in the display area AA is increased as compared with the related art. For example, conventionally, the density of the cell gap spacers, that is, the number density thereof, was set to 203 ppm, and the areal density (the display area) occupied by the entire column spacers was set to 2.19%. In this embodiment, the cell gap column spacers have a density of about 260 to 280 ppm To about 28% to 38%, and the area ratio of the entire column spacer (in the display area) can be increased to about 3.32 to 3.92% by about 51 to 80%.

As described above, by increasing the density of the column spacer in the display area, it is possible to improve the proof stress of the liquid crystal panel against the external force such as the touch, that is, the supporting force, thereby reducing the fluidity of the liquid crystal. As a result, do.

In particular, the density of the column spacer of the present embodiment is similar to the width w2 of the dam area DA described above, taking account of the liquid crystal filling margin, and it is possible to minimize liquid crystal fluidity within the liquid crystal filling margin tolerance range.

Hereinafter, a cross-sectional structure of a touch-type liquid crystal display (LCD) according to an embodiment of the present invention will be described in more detail with reference to FIG. FIG. 6 is a cross-sectional view schematically showing a touch-type liquid crystal display device according to an embodiment of the present invention, and is a view along line VI-VI in FIG. In FIG. 6, the structure of the array substrate 110 is briefly shown for convenience of explanation. In the display area AA, the pixel regions P adjacent in the vertical direction in FIG. 4 are cut along the boundary in the left- Was shown.

Referring to FIG. 6, a liquid crystal display (LCD) may include a liquid crystal panel 100 and a touch panel 300 attached to a display surface side of the liquid crystal panel 100. The manner in which the touch panel 300 is attached to the outer surface of the liquid crystal panel 100 is called an on-cell method. The present embodiment can also include an in-cell type liquid crystal display device having a touch panel, that is, a touch element, in the liquid crystal panel 100.

Although not specifically shown, the touch panel 300 may be directly attached to the liquid crystal panel 100 through a light-permeable adhesive. An optical film, such as a polarizing plate, may be attached to the outer surface of the color filter substrate 160 of the liquid crystal panel 100. In this case, the touch panel 300 may be attached to the liquid crystal panel 100, Respectively.

The liquid crystal panel 100 may include an array substrate 110 disposed at a lower portion thereof, a color filter substrate 160 disposed at an upper portion thereof, and a liquid crystal layer 150 filled between the two substrates 110 and 160.

On the other hand, a seal pattern 200 is formed between the array substrate 110 and the color filter substrate 160, facing each other, along the non-display area NA to seal the liquid crystal layer 150 therein do.

On the inner surface of the first substrate 111, an array element layer 120 composed of a plurality of laminated films is formed on the array substrate 110. Though not specifically shown, various array elements such as a thin film transistor, a gate wire, a data wire, a pixel electrode, and a common electrode may be formed in the array element layer 120.

A black matrix BM is formed on the inner surface of the second substrate 161 on the color filter substrate 160. Here, the black matrix BM may be composed of a first portion BM1 located in the display area AA and a second portion BM2 located in the non-display area NA. At this time, the first part BM1 located in the display area AA is formed in a lattice form surrounding the periphery of each pixel area and having an opening formed therein. The second portion BM2 located in the non-display area NA may be formed in a plate shape in which a separate opening is not formed therein. 6, the first portion BM1 of the black matrix BM of the display area AA shown in Fig. 6 is divided into the first portion BM1 of the display area AA shown in Fig. 6 and the second portion BM2 of the black matrix BM of Fig. As shown in FIG.

R, G and B color filter patterns Cr, Cg and Cb are formed on the first part BM1 of the black matrix BM of the display area AA. The edge portions of the color filter patterns Cr, Cg and Cb are formed in the first pixel portion BM1 of the black matrix BM As shown in FIG.

On the other hand, a dummy color filter pattern Cd is formed on the second portion BM2 of the black matrix BM in the non-display area NAS in the seal. The dummy color filter pattern Cd is preferably formed so as to cover at least the dam area DA and further extends to the outside of the non-display area NAS in the seal, that is, to the inside of the seal pattern 200 .

The dummy color filter pattern Cd may be formed of one of the R, G, and B color filter materials, and is preferably formed of a B color filter material in consideration of visibility.

The overcoat layer 180 is formed substantially over the entire surface of the second substrate 161 on the dummy color filter pattern Cd and the R, G and B color filter patterns Cr, Cg and Cb. Here, since the dummy color filter pattern Cd is formed in the non-display area NAS in the seal, the surface of the overcoat layer 180 becomes substantially flat in the display area AA and the non-display area NAS in the seal. That is, the inner surface of the color filter substrate 160 does not substantially have a step at the boundary between the non-display area NAS and the display area AA in the seal, and the non-display area NAS and the display area AA in the seal are flat .

In the display area AA, a plurality of column spacers CS are formed between the array substrate 110 and the color filter substrate 160. The column spacer CS may include a cell gap column spacer CS1 and may further include a pressed column spacer CS2 having a lower thickness or height than the cell gap column spacer CS1.

In particular, a plurality of dummy column spacers CSd may be provided in the dam area DA located adjacent to the display area AA within the non-display area NAS in the seal. The dummy column spacer CSd may include at least one of a dummy cell gap column spacer CSd1 and a dummy pressing column spacer CSd2.

Here, it is preferable that the second width w2, which is the width of the dam area DA, is formed at a ratio of approximately 55% to 75% based on the first width w1 which is the width of the non-display area NAS throughout the seal. Here, in the case where the non-display area NAS has a first width w1 of about 1130 um, the dam area DA can be formed to have a second width w2 of about 621.5 to 847.5 um.

When the dam area DA is formed with the width w2, it is possible to minimize concentration of the liquid crystal flow at the edge of the liquid crystal panel 100 while satisfying the liquid crystal filling margin.

The dummy column spacer CSd is preferably configured to have at least the dummy pressing column spacer CSd2. That is, in the case where an external force is applied, direct damage may occur to the array substrate 110 and the color filter substrate 160 by the dummy cell gap column spacer CSd1. Therefore, at least the dummy pressing column spacer CSd2 ) Of the dummy column spacers (CSd). Further, since the dummy pressing column spacer CSd2 has a function of preventing the liquid crystal flow more than the dummy cell gap column spacer CSd1, it is preferable to configure the dummy pressing column spacer CSd2 to include at least the dummy pressing column spacer CSd2.

The column spacer CS and the dummy column spacer CSd may be formed at the time of manufacturing the color filter substrate 160 or the array substrate 110. In this embodiment, As shown in FIG.

Further, it is preferable to increase the density of the column spacer (CS) in the display area (AA) compared with the conventional one. For example, the number density of the cell gap column spacers CS1 can be set to approximately 260 ppm to 280 ppm. The area density of the entire column spacers CS can be set to approximately 3.32% to 3.92%. By increasing the density of the column spacer CS as compared with the conventional one, it is possible to improve the load bearing capacity of the liquid crystal panel 100, and as a result, it is possible to alleviate the liquid crystal fluidity and improve the touch water ripple phenomenon.

Table 1 below shows an experiment result of comparing the touch water ripple phenomenon in the above-described conventional and the touch type liquid crystal display device of this embodiment. In this experiment, the external force generated by the touch water ripple phenomenon was measured while applying an external force to ten samples (# 1 to # 10) of the conventional and the present embodiment. In Table 1, 'N' Newton.

#One #2 # 3 #4 # 5 # 6 # 7 #8 # 9 # 10 Avg Max Min Conventional 3N 3N 2N 4N 3N 2N 3N 2N 2N 3N 2.8N 4N 2N Example 4N 6N 5N 3N 6N 6N 4N 4N 5N 5N 4.7N 6N 3N

Referring to Table 1, it can be seen that the average external force generated by the touch water ripple in the conventional case is approximately 2.8N, and the average external force generated by the touch water ripple in the present embodiment is approximately 4.7N.

As described above, in this embodiment, the touch water ripple occurs when an external force of a very high level is applied compared with the conventional method. That is, the touch water ripple phenomenon is improved to about 67% (= (4.7N-2.8N) / 2.8N * 100%).

As described above, in the touch-type liquid crystal display device according to the embodiment of the present invention, the width of the dam region, which is an area for arranging the dummy column spacers, in the non-display area within the seal between the seal pattern and the display region is maximally increased Thus minimizing the separation between the seal pattern and the dummy column spacers. Accordingly, it is possible to minimize the liquid crystal flow at the edge during the touch operation, thereby improving the touch water ripple phenomenon caused by the liquid crystal flow.

Further, by forming the dummy color filter pattern on the color filter substrate with respect to the non-display area in the seal, the surface of the non-display area and the display area in the seal can be formed substantially flat. This prevents the liquid crystal flow caused by the occurrence of a step between the non-display area and the display area in the seal and further reduces the liquid crystal flow at the edge during the touch operation, thereby further improving the touch water ripple phenomenon.

In addition, the density of the column spacer in the display area can be increased as compared with the prior art, so that the proof stress of the liquid crystal panel against an external force such as a touch operation can be enhanced. Accordingly, it is possible to reduce the fluidity of the liquid crystal during the touch operation, and as a result, the touch water ripple phenomenon at the edge can be further improved.

The embodiment of the present invention described above is an example of the present invention, and variations are possible within the spirit of the present invention. Accordingly, the invention includes modifications of the invention within the scope of the appended claims and equivalents thereof.

100: liquid crystal panel 110: array substrate
111: first substrate 120: array element layer
150: liquid crystal layer 160: color filter substrate
161: second substrate 180: planarization layer
200: Seal pattern 300: Touch panel
AA: display area
NA, NA1 - NA4: non-display area, first to fourth non-display areas
NAS: Non-display area in seal
DA: Dam area
BM, BM1-BM2: Black Matrix, Part 1-2
Cr, Cg, Cb: R, G, B color filter pattern
Cd: dummy color filter pattern
CS, CS1, CS2: column spacers, cell gap column spacers, pressed column spacers
CSd, CSd1, CSd2: dummy column spacers, dummy cell gap column spacers, dummy pressing column spacers

Claims (8)

A liquid crystal panel including an array substrate and a color filter substrate bonded together through a seal pattern and defining a display area and a non-display area within a seal having a first width inside the seal pattern;
A column spacer disposed in the display region;
And a dummy column spacer spaced apart from the seal pattern in the non-display area of the seal and disposed in a dam region having a second width,
Wherein the second width has a ratio of 55% to 75% of the first width
Touch type liquid crystal display device.
The method according to claim 1,
Wherein the dummy column spacer comprises at least one of a dummy cell gap column spacer and a dummy column spacer spaced lower than the dummy cell gap column spacer
Touch type liquid crystal display device.
The method according to claim 1,
Wherein the density of the dummy column spacers is higher than the density of the column spacers
Touch type liquid crystal display device.
The method according to claim 1,
The color filter substrate includes:
An R, G, and B color filter patterns positioned on a black matrix of the display area;
A dummy color filter pattern located on the black matrix of the non-display area in the seal corresponding to the dam area;
And an overcoat layer disposed on the dummy color filter pattern and the R, G, and B color filter patterns,
Touch type liquid crystal display device.
5. The method of claim 4,
Wherein the dummy color filter pattern extends to the inside of the seal pattern
Touch type liquid crystal display device.
5. The method of claim 4,
Wherein the dummy color filter pattern comprises a B color filter material
Touch type liquid crystal display device.
The method according to claim 1,
Wherein the column spacer comprises a cell gap column spacer,
The cell gap column spacers are distributed at a density of 260-280 ppm
Touch type liquid crystal display device.
The method according to claim 1,
Wherein a total area density of the column spacer is 3.32 to 3.92%
Touch type liquid crystal display device.

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