KR20040108499A - Liquid crystal display device - Google Patents

Abstract

PURPOSE: A liquid crystal display is provided to prevent display inferiority by completely filling a liquid crystal display panel with liquid crystal by smoothly injecting liquid crystal into a liquid crystal injection port. CONSTITUTION: A first substrate(110) has a first display area(113) where pixels having pixel electrodes are formed. A second substrate(120) has a second display area having common electrodes opposite to the pixel electrodes. Liquid crystal(130) is interposed between the pixel electrodes and the common electrodes. A seal line(140) is arranged in belt shape surrounding the first display area or the second display area to contain the liquid crystal, having a liquid crystal injection port(145). First spacers(150) are arranged between the first display area and the second display area for maintaining a cell gap. Second spacers(160) are arranged around the liquid crystal injection port between the first substrate and the second substrate for maintaining a cell gap.

Description

Liquid crystal display {LIQUID CRYSTAL DISPLAY DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device which prevents display defects caused by not completely filling a liquid crystal in a liquid crystal display panel.

Recently developed liquid crystals (LCs) have electrical characteristics in which the arrangement is changed in response to the intensity of the electric field, and optical characteristics in which the light transmittance is changed in response to the arrangement of the liquid crystals. Display the image using the feature. The liquid crystal display device includes a liquid crystal display panel composed of a TFT substrate and a color filter substrate to control the liquid crystal. The liquid crystal is arranged in a thickness of only a few mu m between the TFT substrate and the color filter substrate.

Generally, the liquid crystal is disposed between the TFT substrate and the color filter substrate by the vacuum injection method. In order to arrange the liquid crystal inside the liquid crystal display panel by a vacuum injection method, a liquid crystal accommodating area is formed along an edge of the TFT substrate or the color filter substrate. The liquid crystal accommodating area is formed by a band-shaped seal line, and the seal line has a liquid crystal injection hole for injecting liquid crystal into the liquid crystal accommodating area. The TFT substrate and the color filter substrate are assembled by a seal line, and a liquid crystal accommodating space is formed between the TFT substrate and the color filter substrate by the seal line. The liquid crystal injection hole of the liquid crystal display panel in which the liquid crystal storage space is formed is immersed in the liquid crystal, and the air pressure in the liquid crystal storage space is reduced. As the pressure in the liquid crystal accommodating space is reduced, the liquid crystal is sucked up into the liquid crystal accommodating space along the liquid crystal injection hole and filled in the liquid crystal accommodating space. After the liquid crystal is filled in the liquid crystal accommodating space, the liquid crystal injection hole is sealed by the sealing member. However, this conventional liquid crystal injection method has a problem in that the liquid crystal is not completely filled in the liquid crystal display panel. The reason why the liquid crystal is not completely filled inside the liquid crystal display panel is that the cell gap at the liquid crystal injection hole is narrowed during the assembly of the TFT substrate and the color filter substrate. When the cell gap at the liquid crystal injection hole is narrowed, the liquid crystal cannot be sucked into the liquid crystal storage space even though the air pressure in the liquid crystal storage space is lowered.

When the liquid crystal is not completely filled in the liquid crystal display panel, the display is not performed at the portion where the liquid crystal is not filled.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a liquid crystal display device which prevents a display defect by allowing a liquid crystal to be completely filled inside the liquid crystal display panel.

FIG. 1 is a conceptual diagram illustrating a liquid crystal display according to a first embodiment of the present invention. FIG. 2 is a plan view showing a portion of the liquid crystal display panel shown in FIG.

3 is a conceptual diagram illustrating pixels of the liquid crystal display panel illustrated in FIG. 2.

4 is a cross-sectional view illustrating a thin film transistor and a pixel electrode formed on the first substrate illustrated in FIG. 2.

FIG. 5 is a cross-sectional view of a second substrate of the liquid crystal display panel illustrated in FIG. 2.

6 is a cross-sectional view taken along line B-B of FIG. 2.

7 is a plan view illustrating first and second spacers formed on a first substrate according to a second embodiment of the present invention.

FIG. 8 is an enlarged view of a portion B of FIG. 7.

9 is a cross-sectional view taken along the line C-C of FIG.

10 is an enlarged view illustrating a second spacer according to a third embodiment of the present invention.

11 is an enlarged view illustrating an enlarged second spacer according to a fourth embodiment of the present invention.

12 is an enlarged view of a second spacer according to a fifth embodiment of the present invention.

13 is an enlarged view of a second spacer according to a sixth embodiment of the present invention.

14 is an enlarged view of a second spacer according to a seventh embodiment of the present invention. FIG. 15 is a plan view illustrating first and second spacers formed on a second substrate according to an eighth embodiment of the present invention.

FIG. 16 is an enlarged view of a portion C of FIG. 15.

17 is an enlarged view illustrating a second spacer according to a ninth embodiment of the present invention.

18 is an enlarged view illustrating an enlarged second spacer according to a tenth embodiment of the present invention.

19 is an enlarged view of a second spacer according to an eleventh embodiment of the present invention.

20 is an enlarged view of a second spacer according to a twelfth embodiment of the present invention.

21 is an enlarged view of a second spacer according to a thirteenth embodiment of the present invention.

In order to realize the object of the present invention, the present invention provides a first substrate having a first display area in which a pixel having a pixel electrode is formed, a second substrate having a second display area in which a common electrode facing the pixel electrode is formed, The liquid crystal line between the pixel electrode and the common electrode is disposed in a band shape surrounding one of the first display area and the second display area for accommodating the liquid crystal, and a seal line in which a liquid crystal injection hole for injecting liquid crystal is formed in a portion thereof. And a first spacer disposed between the first display region and the second display region to maintain a cell gap, and a second spacer disposed around the liquid crystal injection hole among the first substrate and the second substrate to maintain the cell gap. According to the present invention, a spacer for maintaining a cell gap of the liquid crystal injection hole portion in the liquid crystal injection hole portion of the liquid crystal display panel. Sex to ensure the liquid crystals are smoothly introduced into the liquid crystal injection port and so that the liquid crystal is fully filled in the inside of the liquid crystal display panel.

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

Embodiments of Liquid Crystal Display

Example 1

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

Referring to FIG. 1, the liquid crystal display device 400 includes a liquid crystal display panel 100 and a backlight assembly 200.

The backlight assembly 200 supplies the light 210 including no information toward the liquid crystal display panel 100. The liquid crystal display panel 100 changes the light 210 supplied from the backlight assembly 200 into an image light 195 including information.

FIG. 2 is a plan view illustrating a portion of the liquid crystal display panel shown in FIG. 1; 3 is a conceptual diagram illustrating pixels of the liquid crystal display panel illustrated in FIG. 2. 4 is a cross-sectional view illustrating a thin film transistor and a pixel electrode formed on the first substrate illustrated in FIG. 2.

Referring to FIG. 2, the liquid crystal display panel 100 includes a first substrate 110, a second substrate 120, a liquid crystal 130, a seal line 140, a first spacer 150, and a second spacer 160. ).

2 or 3, the first substrate 110 includes a first transparent substrate 112 and a pixel 119.

The first transparent substrate 112 has a rectangular parallelepiped plate shape and has a light transmittance comparable to that of glass. In the present embodiment, the first transparent substrate 112 is a glass substrate. The first display region 113 is formed on the first transparent substrate 112, and the pixel 119 is disposed on the first display region 113.

3 and 4, a plurality of pixels 119 are disposed in a matrix form in the first display area 113. For example, a liquid crystal display device having a resolution of 1024 × 768 and performing full-color display has 1024 × 768 × 3 pixels 119 in the first display area 113.

Each pixel 119 includes a gate bus line 114, a data bus line 115, a thin film transistor (TFT) 116, and a pixel electrode 117. The gate bus lines 114 extend in the first direction on the first transparent substrate 112 and 768 in the second direction are arranged in parallel. The gate bus line 114 is made of aluminum or an aluminum alloy having excellent electrical characteristics.

The data bus line 115 is insulated from the gate bus line 114, extends in the second direction, and 1024 × 3 are arranged in a parallel manner in the first direction. The data bus line 115 is made of aluminum or an aluminum alloy having excellent electrical characteristics. One thin film transistor 116 is formed at each intersection of the gate bus line 114 and the data bus line 115. The thin film transistor 116 includes a gate electrode portion G, a source electrode portion S, a channel layer C, and a drain electrode portion D. The gate electrode portion G extends a predetermined length from the gate bus line 114 in a direction parallel to the second direction. The gate electrode portion G is formed of 1024 × 3 at regular intervals for each gate bus line 114. The channel layer C is insulated from the gate electrode part G, and is disposed on an upper surface of the gate electrode part G. The channel layer C is made of amorphous silicon or n ⁺ amorphous silicon (n ⁺ amophous silicon) highly doped with impurities. The source electrode portion S extends a predetermined length from the data bus line 115 in a direction parallel to the first direction. 768 number of source electrode portions S are formed for each data bus line 115, and each source electrode portion S is connected to the channel layer C. FIG. The drain electrode part D is connected to the channel layer C while being spaced apart from the source electrode part S. FIG.

The pixel electrode 117 is made of a transparent and conductive indium tin oxide (ITO) material or indium zinc oxide (IZO) material. Each pixel electrode 117 is disposed in each region surrounded by the gate bus line 114 and the data bus line 115. Each pixel electrode 117 is connected to the drain electrode portion D of the thin film transistor 116.

FIG. 5 is a cross-sectional view of a second substrate of the liquid crystal display panel illustrated in FIG. 2.

1 or 5, the second substrate 120 includes a second transparent substrate 122, a light blocking film 124, a color filter 126, and a common electrode 128. The second substrate 120 is overlapped with the first substrate 110 such that the common electrode 128 faces the pixel electrode 117. The second transparent substrate 122 has a rectangular parallelepiped plate shape and is equivalent to glass. Light transmittance. In the present embodiment, the second transparent substrate 122 is a glass substrate. The second transparent substrate 122 has a second display region 123, and the light blocking film 124, the color filter 126, and the common electrode 128 are formed in the second display region 123. In this case, the second display area 123 faces the first display area 113 of the first substrate 110 and has the same area and the same shape.

The light blocking film 124 is made of a metal having a very low light transmittance such as chromium (Cr) or chromium oxide (CrO ₂ ) or an organic material having a light transmittance similar to chromium. The light blocking film 124 is formed of the first substrate 110. A portion facing the pixel electrode 117 formed in the opening has a lattice shape. Accordingly, the light blocking film 124 passes light incident to the portion corresponding to the pixel electrode 117 and blocks light incident between the pixel electrodes 117. The light blocking film 124 further blocks display light leaked between the pixel electrodes 117 to further improve display quality. A portion of the light blocking film 124 is formed in a band shape along the edge of the second display area 123.

The color filter 126 is disposed where the color filter 126 faces the pixel electrode 117 of the second transparent substrate 122. The color filter 126 is composed of a red color filter through which light of a red wavelength passes through white light, a green color filter through which light of a green wavelength passes through white light, and a blue color filter through which light of a blue wavelength among white light passes. 128 is formed over the entire surface of the second transparent substrate 122 so that the color filter 126 is covered. The common electrode 128 is made of a transparent and conductive indium tin oxide (ITO) material or indium zinc oxide (IZO) material.

Referring back to FIG. 1, the liquid crystal 130 is interposed between the first substrate 110 and the second substrate 120. The liquid crystal 130 is formed to a thickness of about 3 to 5㎛. The arrangement of the liquid crystal 130 is changed by the electric field difference between the pixel voltage applied to each pixel electrode 117 and the common voltage applied to the common electrode 128, and the light transmittance is changed by the changed arrangement. Referring again, the sealline 140 includes a thermosetting material and an adhesive material. The seal line 140 surrounds either the first display region 113 of the first substrate 110 or the second display region 123 of the second substrate 120 in a band shape, and the first display region 113. And the space between the second display area 123.

The seal line 140 bonds the first substrate 110 and the second substrate 120 to each other. In addition, the seal line 140 may prevent the liquid crystal 130 interposed between the first substrate 110 and the second substrate 120 to flow out of the first substrate 110 and the second substrate 120. Seal. In addition, the seal line 140 forms a constant cell gap between the first substrate 110 and the second substrate 120. The seal line 140 having such a function has a liquid crystal injection hole 145 for injecting the liquid crystal 130 into the first substrate 110 and the second substrate 120. In the present embodiment, the width of the liquid crystal injection hole 145 is formed to be about 11 mm to 20 mm. Referring to FIG. 2, the first spacer 150 is formed by patterning an organic film made of an organic material, and the first display area. And the second display area 123. The seal line 140 described above forms a cell gap between the first substrate 110 and the second substrate 120, and the first spacer 150 includes the first substrate 110 and the second substrate 120. The cell gap formed in between is kept uniform.

6 is a cross-sectional view taken along line B-B of FIG. 2.

Referring to FIG. 6, the second spacer 160 may include a seal line 140 surrounding the first display region 113 of the first substrate 110 or the second display region 123 of the second substrate 120. At least one is formed around the liquid crystal injection hole 145. The second spacer 160 prevents the cell gap of the liquid crystal injection hole 145 from narrowing so that the liquid crystal 130 can be smoothly injected through the liquid crystal injection hole 145.

The liquid crystal injection hole 145 is sealed by a sealing member. The sealing member prevents the liquid crystal 130 injected between the first substrate 110 and the second substrate 120 through the liquid crystal injection hole 145 from being discharged out of the liquid crystal injection hole 145 again. The sealing member includes an ultraviolet curable material, and thus the sealing member is cured by ultraviolet rays. Meanwhile, a tape carrier package for applying a pixel voltage to the pixel electrode and a common voltage to the common electrode on the first substrate 100 is provided. package, TCP; 170, and a driving printed circuit board 180 are attached.

According to the present exemplary embodiment, the first spacer 150 is formed between the first display region 113 and the second display region 123, and is formed around the liquid crystal injection hole 145 into which the liquid crystal 130 is injected. Each of the two spacers 160 is formed to prevent the cell gap of the liquid crystal injection hole 145 from being reduced. Therefore, the liquid crystal 130 is prevented from being injected between the first substrate 110 and the second substrate 120 to prevent the display quality of the liquid crystal display device 400 from being lowered.

Example 2

7 is a plan view illustrating first and second spacers formed on a first substrate according to a second embodiment of the present invention. FIG. 8 is an enlarged view of a portion B of FIG. 7. 9 is a cross-sectional view taken along the line C-C of FIG. This embodiment is the same as the first embodiment except for the arrangement and shape of the second spacer. Therefore, the same members will be denoted by the same reference numerals as those in the first embodiment, and redundant description thereof will be omitted. Referring to FIGS. 7 to 9, the first spacer 150 and the second spacer 160 are liquid crystals. The first substrate 110 of the display panel 100 is formed. The first spacer 150 is formed inside the first display area 113, and the second spacer 160 is formed around the liquid crystal injection hole 145.

The second spacer 160 is disposed around the liquid crystal injection hole 145. The second spacer 160 prevents the cell gap between the first substrate 110 and the second substrate 120 from narrowing around the liquid crystal injection hole 145.

In the present embodiment, a plurality of second spacers 160 are disposed between the liquid crystal injection holes 145. Specifically, when the liquid crystal injection direction is referred to as the first direction, the second spacers 160 are disposed in series in a second direction perpendicular to the first direction. In addition, the second spacer 160 disposed in series in the second direction may be disposed between the end E of the first substrate 110 and the first display area 113. The arrangement of the second spacers 160 is determined by the force applied to the first substrate 110 or the second substrate 120.

In this embodiment, the volume of the second spacer 160 is greater than the volume of the first spacer 150, and the number of the first spacers 150 per unit area is larger than the number of the second spacers 160 per unit area. In this case, the supporting force supported by the first spacers 150 included in the unit area and the supporting force supported by the second spacers 160 included in the unit area are substantially the same.

As such, the volume of the second spacer 160 is larger than that of the first spacer 160, and the number of the second spacers 160 per unit area is smaller than the number of the first spacers 150 per unit area. ) May be more smoothly injected through the liquid crystal injection hole 145. In this embodiment, in order to more smoothly inject the liquid crystal 130, the interval L ₁ between the second spacers 160 is preferably It is 1.5 mm-2.0 mm. For example, when the distance L ₁ of the second spacers 160 is 1.5 mm or less, the second spacers 160 may interfere with the injection of the liquid crystal 130. On the contrary, when the distance L ₁ of the second spacers 160 is greater than or equal to 2.0 mm, the gap between the second spacers 160 is too wide to narrow the cell gap between the first substrate 110 and the second substrate 120. Injection of the liquid crystal 130 may be disturbed.

In the present embodiment, the distance L ₂ between the second spacer 160 and the end portion of the liquid crystal injection hole 145 is preferably 0.5 mm to 1.5 mm. For example, when the distance L ₂ formed between the end of the second spacer 160 and the liquid crystal injection hole 145 is 0.5 mm or less, the facility for forming the seal line may be connected to the seal line 140 by the second spacer 160. The formation position cannot be accurately determined, resulting in poor seal line formation. On the contrary, when the distance L ₂ formed between the end of the second spacer 160 and the liquid crystal injection hole 145 is 1.5 mm or more, the cell gap between the first substrate 110 and the second substrate 120 is narrowed and thus the liquid crystal 130 is formed. Injection may be disturbed.

According to the present exemplary embodiment, the second spacer 160 is formed on the first substrate 110, and the shape and arrangement of the second spacer 160 are changed to see the liquid crystal 130 through the liquid crystal injection hole 145. Make sure to inject smoothly.

Example 3

10 is an enlarged view illustrating a second spacer according to a third embodiment of the present invention. This embodiment is the same as the second embodiment except for the arrangement of the second spacers. Therefore, the same members are denoted by the same reference numerals as those in the second embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 10, at least two second spacers 160 are disposed in a second direction perpendicular to the first direction. In this embodiment, the second spacer 160 consists of two rows. The plurality of second spacers 160 arranged in the first direction, which is the injection direction of the liquid crystal 130, have a sufficient arrangement to support the first substrate 110 and the second substrate 120. In the injection, the contact area between the second spacer 160 and the liquid crystal 130 is greatly reduced. Therefore, the liquid crystal 130 may be more smoothly injected between the first substrate 110 and the second substrate 120.

According to the present exemplary embodiment, the plurality of second spacers 160 are arranged in a direction parallel to the injection direction of the liquid crystal 130, so that the second spacers 160 are formed on the first substrate 110 and the second substrate 120. While maintaining the cell gap and the liquid crystal 130 is injected, the area in contact with the second spacer 160 is greatly reduced, so that the liquid crystal 130 is more smoothly between the first substrate 110 and the second substrate 120. Allow it to be injected.

Example 4

11 is an enlarged view illustrating an enlarged second spacer according to a fourth embodiment of the present invention. This embodiment is the same as the second embodiment except for the arrangement of the second spacers. Therefore, the same members will be denoted by the same reference numerals as those in the second embodiment, and the description thereof will be omitted. Referring to FIG. 11, the second spacer 160 is arranged in a zigzag direction between the liquid crystal injection holes 145. Is placed. The second spacer 160 disposed in the zigzag direction between the liquid crystal injection holes 145 facilitates the injection of the liquid crystal. In addition, the second spacer 160 is widely distributed between the first substrate 110 and the second substrate 120 to maintain the cell gap even when an excessive force is applied from the outside.

According to the present exemplary embodiment, the plurality of second spacers 160 are disposed in a zigzag direction between the liquid crystal injection holes 145 to maintain the cell gap between the first substrate 110 and the second substrate 120 while maintaining the liquid crystal 130. ) Is injected to greatly reduce the area of the second spacer 160 in contact with each other so that the liquid crystal 130 can be more smoothly injected between the first substrate 110 and the second substrate 120.

Example 5

12 is an enlarged view of a second spacer according to a fifth embodiment of the present invention. The present embodiment is the same as the second embodiment except for the shape of the second spacer. Therefore, the same members are denoted by the same reference numerals as those in the second embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 12, the second spacer 160 disposed between the liquid crystal injection holes 145 has a cylindrical shape. Alternatively, the second spacer 160 may have a truncated cone shape. When the liquid crystal 130 is injected through the liquid crystal injection hole 145, the second spacer 160 having a columnar shape or a truncated cone shape greatly reduces friction with the liquid crystal 130, thereby smoothly injecting the liquid crystal 130. To be possible.

According to the present exemplary embodiment, the shape of the second spacer 160 is a cylindrical shape or a truncated cone shape with less friction with the liquid crystal 130, thereby making the liquid crystal 130 smoother than the first substrate 110 and the second substrate 120. So that it can be injected between

Example 6

13 is an enlarged view of a second spacer according to a sixth embodiment of the present invention. The present embodiment is the same as the second embodiment except for the shape of the second spacer. Therefore, the same members are denoted by the same reference numerals as those in the second embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 13, the second spacer 160 is formed between the liquid crystal injection holes 145, and when the liquid crystal 130 is injected into the liquid crystal injection hole 145, the liquid crystal 130 and the second spacer ( In order to further reduce the resistance of 160 has a triangular pillar shape. At this time, the side edges 160a where two of the three side surfaces of the second spacer 160 having a triangular pillar shape meet each other, face the first direction in the liquid crystal injection direction, and thus the liquid crystal 130 and the second spacer ( Significantly reduce the resistance of 160).

On the contrary, the second spacer 160 having a triangular pillar shape is discharged from the liquid crystal injection hole 145 by a force applied from the outside of the liquid crystal 130 disposed between the first substrate 110 and the second substrate 120. In order to prevent the leakage of the liquid crystals 130, the second spacers 160 may resist the liquid crystals 130 discharged. According to the present embodiment, the shape of the second spacers 160 may be a triangular column shape. In addition, the side edges 160a of the second spacer 160 may be disposed to face the injection direction of the liquid crystal 130, thereby further reducing resistance of the liquid crystal 130 and the second spacer 160.

Example 7

14 is an enlarged view of a second spacer according to a seventh embodiment of the present invention. The present embodiment is the same as the second embodiment except for the shape of the second spacer. Therefore, the same members are denoted by the same reference numerals as those in the second embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 14, the second spacer 160 is formed between the liquid crystal injection holes 145, and when the liquid crystal 130 is injected into the liquid crystal injection holes 145, the liquid crystal 130 and the second spacer 160 are formed. In order to further reduce the resistance of the ellipsoidal pillar shape. The second spacer 160 having an elliptic pillar shape is disposed such that its long axis is parallel to the injection direction of the liquid crystal 130, thereby reducing the resistance of the liquid crystal 130 and the second spacer 160. On the contrary, when the long axis of the second spacer 160 having an elliptic pillar shape is not parallel to the injection direction of the liquid crystal 130, the resistance of the liquid crystal 130 and the second spacer 160 may be greatly increased. According to the embodiment, the shape of the second spacer 160 is formed in an elliptic column shape, and the long axis of the second spacer 160 is disposed to face the injection direction of the liquid crystal 130 so as to form the liquid crystal 130 and the second spacer. The resistance of the 160 may be further reduced to allow the liquid crystal 130 to be more smoothly injected between the first substrate 110 and the second substrate 120.

Example 8

FIG. 15 is a plan view illustrating first and second spacers formed on a second substrate according to an eighth embodiment of the present invention. FIG. 16 is an enlarged view of a portion C of FIG. 15. This embodiment is the same as the first embodiment except for the arrangement and shape of the second spacer. Therefore, the same members are denoted by the same reference numerals as those in the first embodiment, and duplicated descriptions thereof will be omitted.

15 and 16, a first spacer 155 and a second spacer 165 are formed on the second substrate 120 of the liquid crystal display panel 100. The first spacer 155 is formed in the second display area 123, and the second spacer 165 is formed around the liquid crystal injection hole 147. The second spacer 165 is the liquid crystal injection hole 147. Is placed in the vicinity of. The second spacer 165 prevents the cell gap between the first substrate 110 and the second substrate 120 from narrowing around the liquid crystal injection hole 147.

In the present embodiment, a plurality of second spacers 165 are disposed between the liquid crystal injection holes 147. Specifically, the second spacer 165 is disposed in series in a second direction perpendicular to the first direction when the liquid crystal injection direction is referred to as the first direction. In addition, the second spacer 165 disposed in series in the second direction may be disposed between the end E of the first substrate 110 and the first display region 113. The placement of the second spacer 165 is determined by the force applied to the first substrate 110 or the second substrate 120.

In the present embodiment, the volume of the second spacer 165 is larger than the volume of the first spacer 155, and the number of the first spacers 155 per unit area is larger than the number of the second spacers 165 per unit area. In this case, the supporting force supported by the first spacers 155 included in the unit area and the supporting force supported by the second spacers 165 included in the unit area are substantially the same.

As such, the volume of the second spacer 165 is greater than that of the first spacer 155, and the number of the second spacers 165 per unit area is smaller than the number of the first spacers 155 per unit area. ) May be more smoothly injected through the liquid crystal injection hole 147. In the present embodiment, the second spacers 165 formed on the second substrate 120 may be more smoothly injected to the liquid crystal 130. The interval L ₁ between is preferably 1.5 mm to 2.0 mm. For example, when the distance L ₁ of the second spacers 165 is 1.5 mm or less, the second spacers 165 may interfere with the injection of the liquid crystal 130. On the contrary, when the distance L ₁ of the second spacers 165 is 2.0 mm or more, the gap between the second spacers 165 becomes too wide, so that the cell gap between the first substrate 110 and the second substrate 120 is narrow. Injection of the liquid crystal 130 may be disturbed.

In this embodiment, the distance L ₂ formed between the second spacer 165 and the end portion of the liquid crystal injection hole 147 is preferably 0.5 mm to 1.5 mm. For example, when the distance L ₂ formed between the end of the second spacer 165 and the liquid crystal injection hole 147 is 0.5 mm or less, the facility forming the seal line 146 is sealed by the second spacer 165. The formation position of 146 cannot be accurately determined, resulting in a poor seal line formation. On the contrary, when the distance L ₂ formed between the end of the second spacer 165 and the liquid crystal injection hole 147 is 1.5 mm or more, the cell gap between the first substrate 110 and the second substrate 120 is narrowed to form the liquid crystal 130. ) May be disturbed.

According to the present exemplary embodiment, the second spacer 165 is formed on the first substrate 110, and the shape and arrangement of the second spacer 165 are changed to see the liquid crystal 130 through the liquid crystal injection hole 147. Make sure to inject smoothly.

Example 9

17 is an enlarged view illustrating a second spacer according to a ninth embodiment of the present invention. In this embodiment, the same arrangement as in Example 8 except for the arrangement of the second spacers. Therefore, the same members are denoted by the same reference numerals as those in the eighth embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 17, at least two second spacers 165 are disposed in a second direction perpendicular to the first direction. In the present embodiment, the second spacer 165 consists of two rows. The plurality of second spacers 165 arranged in the first direction, which is the injection direction of the liquid crystal 130, have a sufficient arrangement to support the first substrate 110 and the second substrate 120. In the case of injection, the contact area between the second spacer 165 and the liquid crystal 130 is greatly reduced. Therefore, the liquid crystal 130 may be more smoothly injected between the first substrate 110 and the second substrate 120.

According to the present exemplary embodiment, the plurality of second spacers 165 are arranged in a direction parallel to the injection direction of the liquid crystal 130 so that the second spacers 165 are formed on the first substrate 110 and the second substrate 120. While maintaining the cell gap and the liquid crystal 130 is injected, the area in contact with the second spacer 165 is greatly reduced, so that the liquid crystal 130 is more smoothly between the first substrate 110 and the second substrate 120. Allow it to be injected.

Embodiment 10 FIG. 18 is an enlarged view enlarging a second spacer according to a tenth embodiment of the present invention. In this embodiment, the same arrangement as in Example 8 except for the arrangement of the second spacers. Therefore, the same members are denoted by the same reference numerals as those in the eighth embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 18, the second spacer 165 is disposed in the zigzag direction between the liquid crystal injection holes 147. The second spacer 165 disposed in the zigzag direction between the liquid crystal injection holes 147 facilitates the injection of the liquid crystal. In addition, the second spacer 165 is widely distributed between the first substrate 110 and the second substrate 120 to maintain the cell gap even when an excessive force is applied from the outside. The plurality of second spacers 165 are disposed in a zigzag direction between the liquid crystal injection holes 147 to contact the liquid crystals 130 while being injected while maintaining a cell gap between the first and second substrates 110 and 120. The area of the second spacer 165 is greatly reduced so that the liquid crystal 130 can be more smoothly injected between the first substrate 110 and the second substrate 120.

Example 11

19 is an enlarged view of a second spacer according to an eleventh embodiment of the present invention. This embodiment is the same as the eighth embodiment except for the shape of the second spacer. Therefore, the same members are denoted by the same reference numerals as those in the eighth embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 19, the second spacer 165 disposed between the liquid crystal injection holes 147 has a cylindrical shape. Alternatively, the second spacer 165 may have a truncated cone shape. The second spacer 165 having a cylindrical shape or a truncated conical shape greatly reduces friction with the liquid crystal 130 when the liquid crystal 130 is injected through the liquid crystal injection hole 147, so that the liquid crystal 130 is more smoothly injected. To be possible.

According to the present exemplary embodiment, the shape of the second spacer 165 is a cylindrical shape or a truncated cone shape with less friction with the liquid crystal 130, so that the liquid crystal 130 is smoother than the first substrate 110 and the second substrate 120. So that it can be injected between

Example 12

20 is an enlarged view of a second spacer according to a twelfth embodiment of the present invention. This embodiment is the same as the eighth embodiment except for the shape of the second spacer. Therefore, the same members are denoted by the same reference numerals as those in the eighth embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 20, the second spacer 165 is formed between the liquid crystal injection holes 147, and when the liquid crystal 130 is injected into the liquid crystal injection hole 147, the liquid crystal 130 and the second spacer ( In order to further reduce the resistance of the (165) has a triangular pillar shape. At this time, the side edges 165a of the three side surfaces of the second spacer 165 having a triangular column shape face each other and face the first direction in the liquid crystal injection direction, so that the liquid crystal 130 and the second spacer ( 165) greatly reduces the resistance.

On the contrary, the second spacer 165 having a triangular pillar shape is to be discharged from the liquid crystal injection hole 147 by the external force of the liquid crystal 130 disposed between the first substrate 110 and the second substrate 120. In order to prevent the leakage of the liquid crystal 130 by preventing the second spacer 165 from being discharged to the liquid crystal 130.

According to the present exemplary embodiment, the shape of the second spacer 165 is manufactured in the shape of a triangular column, and the side edges 165a of the second spacer 165 are disposed to face the injection direction of the liquid crystal 130 to thereby form the liquid crystal 130. ) And the second spacer 165 may be further reduced.

Example 13

21 is an enlarged view of a second spacer according to a thirteenth embodiment of the present invention. This embodiment is the same as the eighth embodiment except for the shape of the second spacer. Therefore, the same members are denoted by the same reference numerals as those in the eighth embodiment, and duplicated descriptions thereof will be omitted.

Referring to FIG. 21, the second spacer 165 is formed between the liquid crystal injection holes 147, and when the liquid crystal 130 is injected into the liquid crystal injection hole 147, the liquid crystal 130 and the second spacer 165 are formed. In order to further reduce the resistance of the ellipsoidal pillar shape. The second spacer 165 having an elliptic pillar shape is disposed such that its long axis is parallel to the injection direction of the liquid crystal 130, thereby reducing the resistance of the liquid crystal 130 and the second spacer 165. On the contrary, when the long axis of the second spacer 165 having an elliptic pillar shape is not parallel to the injection direction of the liquid crystal 130, the resistance of the liquid crystal 130 and the second spacer 165 may be greatly increased. According to the embodiment, the shape of the second spacer 165 is formed in the shape of an elliptic column, and the long axis of the second spacer 165 is disposed to face the injection direction of the liquid crystal 130 so as to form the liquid crystal 130 and the second spacer. The resistance of 165 is further reduced to allow the liquid crystal 130 to be more smoothly injected between the first substrate 110 and the second substrate 120.

According to the above description, the liquid crystal is not filled between the first substrate and the second substrate of the liquid crystal display panel, thereby preventing display defects from occurring.

In the detailed description of the present invention described above with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the scope of the invention described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (23)

A first substrate having a first display area having a pixel electrode; A second substrate having a second display area in which a common electrode facing the pixel electrode is formed; A liquid crystal layer interposed between the pixel electrode and the common electrode; A seal line defining a space between the first display area and the second display area to accommodate the liquid crystal layer and having a liquid crystal injection hole for forming the liquid crystal layer; A first spacer disposed between the first display area and the second display area to maintain a cell gap; And a second spacer disposed between the first substrate and the second substrate around the liquid crystal injection hole to maintain the cell gap. The liquid crystal display of claim 1, wherein the first spacer and the second spacer are formed on the first substrate. The liquid crystal display of claim 2, wherein the seal line is formed on the first substrate. 3. The liquid crystal display device according to claim 2, wherein a plurality of second spacers are arranged in a row. The liquid crystal display of claim 4, wherein an arrangement direction of the second spacers is perpendicular to an injection direction of the liquid crystal. The method of claim 2, wherein the number of the first spacers included in the unit area is greater than the number of the second spacers included in the unit area, and the supporting force of the first spacers included in the unit area is included in the unit area. And a support force substantially equal to that of the second spacer. The liquid crystal injection hole of claim 2, wherein the width of the liquid crystal injection hole is 11 mm to 20 mm, the distance between the second spacers is 1.5 mm to 2.0 mm, and the distance between the end of the liquid crystal injection hole and the second spacer facing the end is 0.5 mm. It is-1.5 mm, The liquid crystal display device characterized by the above-mentioned. The liquid crystal display of claim 2, wherein a sealing member is disposed in the liquid crystal injection hole to seal the liquid crystal injection hole at a predetermined distance from the second spacer. 3. The liquid crystal display device according to claim 2, wherein the sealing member comprises an ultraviolet curing agent cured by ultraviolet rays. 3. The liquid crystal display device according to claim 2, wherein a plurality of the second spacers are arranged in a direction parallel to the injection direction of the liquid crystal. 3. The liquid crystal display device according to claim 2, wherein a plurality of the second spacers are arranged in a zigzag form to smoothly inject the liquid crystal. 3. The liquid crystal of claim 2, wherein the second spacer comprises at least one selected from the group consisting of a cylinder, a triangular prism in which the corner part faces the liquid crystal injection direction, and an elliptic prism in which the long side faces the liquid crystal injection direction. Display. The liquid crystal display of claim 1, wherein the first spacer and the second spacer are formed on the second substrate. The liquid crystal display of claim 13, wherein the seal line is formed on the second substrate. The liquid crystal display of claim 13, wherein a plurality of the second spacers are arranged in a row. The liquid crystal display device according to claim 13, wherein the second spacer is disposed in a direction perpendicular to an injection direction of the liquid crystal. The method of claim 13, wherein the number of the first spacers included in the unit area is greater than the number of the second spacers included in the unit area, and the supporting force supported by the first spacer included in the unit area is the unit area. The liquid crystal display device, characterized in that substantially the same as the holding force supported by the second spacer included in. The liquid crystal injection hole of claim 13, wherein the width of the liquid crystal injection hole is 11 mm to 20 mm, the distance between the second spacers is 1.5 mm to 2.0 mm, and the distance between the end of the liquid crystal injection hole and the second spacer facing the end is 0.5. A liquid crystal display device, characterized by being mm to 1.5 mm. The liquid crystal display of claim 13, wherein a sealing member is disposed at the liquid crystal injection hole to seal the liquid crystal injection hole at a predetermined distance from the second spacer. The liquid crystal display device of claim 13, wherein the sealing member further comprises an ultraviolet curing agent cured by ultraviolet rays. The liquid crystal display device according to claim 13, wherein a plurality of the second spacers are arranged in a direction parallel to the injection direction of the liquid crystal. 3. The liquid crystal display device according to claim 2, wherein a plurality of the second spacers are arranged in a zigzag form to smoothly inject the liquid crystal. The liquid crystal of claim 13, wherein the second spacer comprises at least one selected from the group consisting of a cylinder, a triangular column whose corner portion faces the liquid crystal injection direction, and an elliptic cylinder whose long side faces the liquid crystal injection direction. Display.