KR20060136129A - Display panel, method of manufacturing the same and display device having the same - Google Patents

Abstract

Disclosed are a display panel for improving display quality, a manufacturing method thereof, and a display device having the same. The display panel includes a first substrate, a second substrate, a connecting member, and a strength reinforcing member. The second substrate opposes the first substrate and includes a display area and a peripheral area. The connection member is formed in a peripheral region on the second substrate, and electrically connects the first substrate and the second substrate. The strength reinforcing member protrudes from the second substrate and is disposed in the connecting member. Therefore, as the strength reinforcing member is formed in the connecting member, the electrical connection between the first substrate and the second substrate is stabilized as the strength of the connecting member is increased, thereby improving display quality of the display device.

Description

DISPLAY PANEL, METHOD OF MANUFACTURING THE SAME AND DISPLAY DEVICE HAVING THE SAME}

1 is a cross-sectional view of a liquid crystal display panel according to an exemplary embodiment of the present invention.

2 is a plan view of FIG. 1.

3 is a cross-sectional view illustrating a liquid crystal display panel according to another exemplary embodiment of the present invention.

4A through 4E are cross-sectional views illustrating a manufacturing process for manufacturing the upper substrate of the liquid crystal display panel illustrated in FIG. 1.

5A through 5D are cross-sectional views illustrating a manufacturing process of the upper substrate illustrated in FIG. 3.

6 is an exploded perspective view showing a liquid crystal display device having a liquid crystal display panel according to the present embodiment.

* Explanation of symbols for main parts of drawings *

100: liquid crystal display panel 200: lower substrate

250: common voltage electrode pad 300: upper substrate

350: column spacer 400: liquid crystal layer

500: Seal Line 600: Short Point

610: strength reinforcing member

The present invention relates to a display panel, a manufacturing method thereof, and a display device having the same, and more particularly, to a display panel for improving display quality, a manufacturing method thereof, and a display device having the same.

In general, a liquid crystal display device includes a liquid crystal display panel having a TFT substrate, a color filter substrate facing the TFT substrate, and a liquid crystal interposed between both substrates to determine whether light is transmitted as an electric signal is applied.

Here, a pixel (Pixel) consisting of a gate line transferring a scan signal, a data line transferring an image signal, a TFT connected to the gate line and the data line, and a pixel electrode connected to the TFT is formed in the TFT substrate. Therefore, the TFT is driven by the scan signal applied through the gate line to apply the image signal to the pixel electrode. In addition, the color filter substrate is formed with a color filter that is expressed in a predetermined color by a common electrode facing the pixel electrode and light.

A seal line in which sealant is printed is formed on an outer periphery of the color filter substrate so as to surround the color filter. The TFT substrate and the color filter substrate are physically and firmly coupled by the seal line.

After the sealant printing process is completed, a short process for electrically connecting the color filter substrate and the TFT substrate is performed. That is, the short process is a process for electrically connecting the color filter substrate and the TFT substrate, and is a process for providing a common electrode input through the TFT substrate as a common electrode of the color filter substrate.

The short process partially overlaps the seal line of the color filter substrate or forms a predetermined number of short points due to the conductive material on the outer side of the seal line. The short point electrically connects the pixel electrode of the TFT substrate and the common electrode of the color filter substrate, and applies a common voltage input to the TFT substrate to the common electrode of the color filter substrate.

After the shorting process, the color filter substrate and the TFT substrate are joined at a predetermined pressure up and down and irradiated with ultraviolet rays. As a result, the seal line is cured so that the TFT substrate and the color filter substrate are firmly bonded to each other.

Here, since the short point is formed of a material having a relatively small modulus of elasticity compared to the seal line, stress is generated at the short point in the above process. The stress causes cracks in the short points.

As such, there is a problem that the strength of the short point is lowered as a crack occurs.

Accordingly, an object of the present invention is to provide a display panel having a structure for increasing the strength of a short point.

Another object of the present invention is to provide a manufacturing method for manufacturing the display panel.

Another object of the present invention is to provide a display device having the display panel.

The display panel according to the present invention for achieving the above object includes a first substrate, a second substrate, a connecting member and a strength reinforcing member. The second substrate faces the first substrate and includes a display area and a peripheral area surrounding the display area. The connection member is formed in the peripheral area on the second substrate, and electrically connects the first substrate and the second substrate. The strength reinforcing member protrudes from the second substrate and is disposed in the connection member.

The display panel according to the present invention further includes a cell gap holding member formed between the first and second substrates to maintain a gap between the first substrate and the second substrate, and the strength reinforcing member includes the cell gap holding member. It is made of the same material as.

The display panel may further include a first color filter formed in the display area on the second substrate and a second color formed on the second substrate so as to correspond to a lower portion of the second color filter formed between the intensity reinforcing member and the second substrate. It further includes a filter.

In order to achieve another object of the present invention, a first substrate is formed, and a second substrate including a display area and a peripheral area surrounding the display area is formed. Next, a strength reinforcing member protruding from the second substrate corresponding to the peripheral region is formed, and the strength reinforcing member is accommodated therein in the peripheral region on the second substrate, and the first substrate and the first substrate are formed. 2 to form a connection member for electrically connecting the substrate.

According to another aspect of the present invention, there is provided a display device including a light generating device for generating light, a first substrate, and a display area and a peripheral area facing the first substrate and displaying an image by the light. A substrate, a connection member formed in the peripheral region on the second substrate, the connection member electrically connecting the first substrate and the second substrate, and a strength reinforcement member protruding from the second substrate and disposed in the connection member. It has a display panel.

According to such a display panel, a manufacturing method thereof, and a display device having the display panel, the electrical connection between the first substrate and the second substrate is stabilized as the strength of the connecting member increases as the strength reinforcing member is formed in the connecting member. The display quality of the device can be improved.

Hereinafter, a display panel and a display device having the same according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a liquid crystal display panel according to an exemplary embodiment of the present invention, and FIG. 2 is a plan view of FIG. 1.

1 and 2, the liquid crystal display panel 100 according to the present invention includes a lower substrate 200, an upper substrate 300 facing the lower substrate 200, a lower substrate 200, and an upper substrate. It consists of a liquid crystal layer 400 formed between the 300 and the seal line 500 for coupling the lower substrate 200 and the upper substrate 300.

The liquid crystal display panel 100 may include a display area DA in which an image is displayed, a seal line area SA surrounding the display area DA, and a peripheral area PA positioned at an outside of the seal line area SA. Are distinguished.

 On the first substrate 210 of the lower substrate 200 corresponding to the display area DA, a plurality of gate lines GL extending in a first direction D1 and an orthogonal to the first direction D1 are formed. A plurality of data lines DL extending in two directions D2 are formed. In this case, a plurality of pixel areas are defined by two adjacent gate lines and data lines among the plurality of gate lines GL and the plurality of data lines DL.

A thin film transistor (TFT) 220 is formed on the first substrate 210 corresponding to the pixel area. The TFT 220 includes a gate electrode 221 branched from the gate line GL, a source electrode 225 branched from the data line DL, and a drain electrode 226 spaced apart from the source electrode 225. . In addition, the TFT 220 includes a gate insulating layer 222, a semiconductor layer 223, and an ohmic contact layer 224 formed on the gate electrode 221.

The gate insulating layer 222 is formed on the first substrate 210 on which the gate electrode 221, the source electrode 225, and the drain electrode 226 are formed. For example, the gate insulating layer 222 may be formed of a silicon nitride layer SiNx.

The semiconductor layer 223 is formed on the gate insulating layer 222, and the ohmic contact layer 224 is formed by being stacked on the semiconductor layer 223. The semiconductor layer 223 is made of amorphous silicon (a-Si), and the ohmic contact layer 224 is made of amorphous silicon (n + a-Si) doped with a high concentration of n-type impurities. A portion of the ohmic contact layer 224 is removed to partially expose the semiconductor layer 223.

The organic layer 230 is formed on the TFT 220 formed on the first substrate 210 to correspond to the display area DA. In this case, the organic layer 230 has a contact hole 235 for partially exposing the drain electrode 226 of the TFT 220.

The pixel electrode 240 that is a transparent electrode is formed on the organic layer 230. The pixel electrode 240 is made of a transparent conductive material through which light can pass. For example, the pixel electrode 240 is made of indium zinc oxide (IZO) or indium tin oxide (ITO). In this case, the pixel electrode 240 is electrically connected to the drain electrode 226 of the TFT 220 through the contact hole 235.

Meanwhile, a seal line 500 is formed on the first substrate 210 corresponding to the seal line area SA to bond the lower substrate 200 and the upper substrate 300 to each other. The seal line 500 includes a photocurable material and is hardened by receiving light provided from the outside in a state interposed between the lower substrate 200 and the upper substrate 300. As a result, the lower substrate 200 and the upper substrate 300 are firmly coupled.

The common voltage electrode pad 250 for providing the common voltage Vcom to the liquid crystal display panel 100 is formed on the first substrate 210 corresponding to the peripheral area PA. In this case, the common voltage electrode pad 250 is formed of the same material in the same process when forming the gate electrode 221 of the TFT 220. The common voltage electrode pad 250 may be formed in the same process when the source electrode 225 and the drain electrode 226 of the TFT 220 are formed.

In addition, a via hole 255 that partially exposes the common voltage electrode pad 250 is formed on the first substrate 210 corresponding to the peripheral area PA. The via hole 255 is formed by removing a portion of the gate insulating layer 222 and the organic layer 230 stacked on the common voltage electrode pad 250.

A transparent electrode 260 is formed on the common voltage electrode pad 250 to be electrically connected to the common voltage electrode pad 250 through a via hole 005. The transparent electrode 260 is formed of the same material in the same process when forming the pixel electrode 240. That is, the transparent electrode 260 is made of ITO or IZO.

Meanwhile, the upper substrate 300 includes a light blocking film 320, a color filter 330, a common electrode 340, and a cell gap holding member 350 (hereinafter referred to as a column spacer) on the second substrate 310. Formed substrate.

The light blocking film 320 includes a first light blocking pattern 320a and a second light blocking pattern 320b. The first light blocking pattern 320a has a matrix shape corresponding to the display area DA. In this case, the first light blocking pattern 320a blocks light leakage between the pixel areas in the display area DA. In addition, the second light blocking pattern 320b is formed on the second substrate 310 to correspond to the seal line area SA and the peripheral area PA so as to surround the display area DA from the outside.

The color filter 330 is formed in the display area DA on the second substrate 310 on which the light blocking film 320 is formed. The color filter 330 includes R color pixels, G color pixels, and B color pixels. In this case, the R, G, and B color pixels of the color filter 330 are formed so that both ends partially overlap the light blocking film 320.

The common electrode 340 is formed to have a uniform thickness on the entire surface of the second substrate 310 on which the color filter 330 is formed.

In addition, the column spacer 350 is formed on the common electrode 340. The column spacer 350 has a cylindrical shape in which the diameter decreases toward the upper surface. The column spacer 350 is formed on the second substrate 310 to correspond to the TFT 220. Therefore, the opening ratio of the liquid crystal display panel 100 is not affected. The column spacer 350 is formed of a predetermined organic material.

In addition, the upper substrate 300 further includes a connection member 600 (hereinafter referred to as a short point) and a strength reinforcing member 610. The short point 600 is formed in the peripheral area PA on the second substrate 310 to correspond to the common voltage electrode pad 250.

In this case, the short point 600 is made of a paste containing conductive particles therein. In the assembly of the lower substrate 200 and the upper substrate 300, the conductive particles of the short point 600 are in contact with the transparent electrode 260. Accordingly, the common voltage Vcom provided from the outside through the common voltage electrode pad 250 of the lower substrate 200 is provided to the common electrode 340 of the upper substrate 300 via the short point 600. Therefore, the short point 600 electrically connects the upper substrate 300 and the lower substrate 200.

The strength reinforcing member 610 is formed to correspond to the short point 600. The strength reinforcing member 610 is formed to protrude into the short point 600 from the second substrate 310. At this time, the strength reinforcing member 610 has a shape formed inside the short point 600. More specifically, after the strength reinforcing member 610 is first formed in the peripheral area PA of the second substrate 310, the paste including conductive particles in the peripheral area PA in which the strength reinforcing member 610 is formed. As is injected, a short point 600 is formed. Therefore, the present invention has a structure in which the strength reinforcing member 610 is formed in the short point 600.

The strength reinforcing member 610 is made of the same material in the same process as the column spacer 350 formed in the display area DA. At this time, the strength reinforcing member 610 has the same shape and the same forming height as the column spacer 350. In the present embodiment, the case where two strength reinforcing members 610 are formed is illustrated as an example, but may be configured in various numbers.

As such, as the strength reinforcing member 610 is formed in the short point 600, the strength of the short point 600 is strengthened to prevent cracks from being generated even when vibration or impact is applied from the outside.

3 is a cross-sectional view illustrating a liquid crystal display panel according to another exemplary embodiment of the present invention.

As shown in FIG. 3, the liquid crystal display panel 700 according to another exemplary embodiment includes a lower substrate 200, an upper substrate 300, and a liquid crystal layer 400 interposed between the two substrates. Here, the same components as in FIG. 1 are assigned the same numbers, and detailed description thereof will be omitted.

The upper substrate 300 includes a color filter 800 and an intensity reinforcing member 620 formed on the second substrate 310. The color filter 800 includes a first color filter 810 and a second color filter 820. The first color filter unit 810 is formed on the second substrate 310 to correspond to the display area DA. In this case, the first color filter unit 810 includes R, G, and B color pixels.

In addition, the second color filter 820 is formed on the second substrate 310 to correspond to the peripheral area PA. In this case, the second color filter unit 820 is formed in the same process as the first color filter unit 810. The second color filter 820 is formed of at least one of R, G, and B color pixels. In the present exemplary embodiment, the second color filter unit 820 is formed of an R color pixel, but may be formed of a G color pixel or a B color pixel. In addition, the second color filter 820 may include R, G, and B color pixels.

The strength reinforcing member 620 is formed to correspond to the upper portion of the second color filter unit 820. In this case, the strength reinforcing member 620 and the second color filter 820 have a structure formed in the short point 600. That is, since the second color filter unit 820 and the strength reinforcing member 620 are sequentially formed in the peripheral area PA of the second substrate 310, a paste containing conductive particles is injected into the peripheral area PA. Accordingly, the short point 600 is formed. Therefore, in the present invention, the second color filter unit 820 and the strength reinforcing member 620 are formed in the short point 600.

Here, the second color filter 820 and the strength reinforcing member 620 increase the strength of the short point 600. In this case, since the strength reinforcing member 620 is formed on the second color filter unit 820, the formation height of the strength reinforcing member 620 may be increased as compared with FIG. 1.

Therefore, as the strength of the strength reinforcing member 620 is increased, the strength of the short point 600 is increased relative to that of FIG. 1. As a result, cracks are prevented from occurring even when vibrations or impacts are applied from the outside.

4A through 4E are cross-sectional views illustrating a manufacturing process for manufacturing the upper substrate of the liquid crystal display panel illustrated in FIG. 1.

As shown in FIG. 4A, the light shielding film formation material is deposited on the entire surface of the second substrate 310 and then patterned to form the light shielding film 320. In this case, the light blocking film 320 includes a first light blocking pattern 320a formed in the display area DA and a second light blocking pattern 320b formed in the peripheral area PA. The first light blocking pattern 320a is formed in a matrix form, and the second light blocking pattern 320b is formed to surround the display area DA from the outside.

Referring to FIG. 4B, a first photoresist (not shown) including a red dye or a red pigment is coated on the second substrate 310 on which the light blocking film 320 is formed to have a uniform thickness. Thereafter, the first photoresist is patterned to form an R pixel.

Next, after forming a second photoresist (not shown) including a green dye or a green pigment on the second substrate 310, the second photoresist is patterned to form a G color pixel.

Subsequently, a third photoresist (not shown) including a blue dye or a blue pigment is formed on the second substrate 310, and then the third photoresist is patterned to form B color pixels. Therefore, the color filter 330 including the R, G, and B color pixels is completed on the second substrate 310. At this time, both ends of the R, G, and B color pixels 330 overlap the light blocking film 320.

As shown in FIG. 4C, ITO or IZO and a transparent conductive film are deposited on the second substrate 310 on which the color filter 330 is formed to have a uniform thickness to face the pixel electrode 240 of the lower substrate 200. The common electrode 340 is formed.

Here, a planarization film (not shown) may be further formed between the color filter 330 and the common electrode 340 to planarize the second substrate 310.

Next, the organic layer 900 is formed to have a uniform thickness on the second substrate 310 on which the common electrode 340 is formed. In this case, the organic layer 900 is a negative photoresist in which the exposed region is not developed. Meanwhile, the organic layer 900 may be formed by a positive photoresist in which the exposed region is developed.

Referring to FIG. 4D, the column spacer 350 and the strength reinforcing member 610 are patterned by patterning the organic layer 900 by a mask 910 positioned on the second substrate 310 on which the organic layer 900 is formed. Form. The mask 910 includes a first opening 912 formed to correspond to the column spacer 350 and a second opening 914 formed to correspond to the strength reinforcing member 610.

Accordingly, the organic layer 900 is exposed and developed by the mask 910 having the first and second openings 912 and 914, thereby simultaneously forming the column spacer 350 and the strength reinforcing member 610. The column spacer 350 is formed in the display area DA, and the strength reinforcing member 610 is formed in the peripheral area PA.

As shown in FIG. 4E, the seal line 500 is formed in the seal line area SA. In addition, the paste containing conductive particles is sprayed on the peripheral area PA where the strength reinforcing member 610 is formed to form the short point 600. Here, the strength reinforcing member 610 has a structure formed in the short point 600.

In the present embodiment, the seal line 610 and the short point 600 are formed on the upper substrate 300 as an example, but may be formed on the lower substrate 200. That is, the short point 600 is formed by spraying the paste on the peripheral area PA on the first substrate 200 to correspond to the strength reinforcing member 610.

On the other hand, the manufacturing process of the lower substrate 200 is already known, so a detailed description thereof will be omitted.

After placing the upper substrate 300 completed through the above process on the lower substrate 200 and applying pressure and ultraviolet rays at the same time, the upper substrate 300 and the lower substrate 200 by the seal line 500 ) Is firmly combined. In addition, the common voltage electrode pad 250 of the lower substrate 200 and the common electrode 340 of the upper substrate 300 are electrically connected by the short point 600. At this time, the strength of the short point 600 is increased by the strength reinforcing member 610 formed inside the short point 600.

5A through 5D are cross-sectional views illustrating a manufacturing process of the upper substrate illustrated in FIG. 3.

First, since the process of forming the light blocking film 320 on the second substrate 310 is the same as in FIG. 4A, the drawings and description thereof will be omitted.

As shown in FIG. 5A, the color filter 800 is formed on the second substrate 310 on which the light blocking film 320 is formed. In this case, the color filter 800 includes a first color filter unit 810 formed in the display area DA and a second color filter unit 820 formed in the peripheral area PA.

That is, a first photoresist (not shown) including a red dye or a red pigment is coated on the second substrate 310 with a uniform thickness. Subsequently, the first photoresist is patterned to form first R pixels 810-R in the display area DA and second R pixels 820-R in the peripheral area PA.

Next, a second photoresist (not shown) including a green dye or a green pigment is formed on the second substrate 310, and then the second photoresist is patterned to form G color pixels 810-in the display area DA. Form G).

Subsequently, a third photoresist (not shown) including a blue dye or a blue pigment is formed on the second substrate 310, and then the third photoresist is patterned to form the B color pixel 810-in the display area DA. Form B). Accordingly, the first color filter 810 including the first R, G, and B color pixels 810-R, 810-G, and 810-B is completed in the display area PA on the second substrate 310.

In addition, the second color filter unit 820 including the second R color pixels 820 -R is completed in the peripheral area PA on the second substrate 310. On the other hand, although the second color filter unit 820 is made of an R color pixel as an example, it may be made of a G pixel or a B pixel, or may be made of R, G, B color pixels.

As shown in FIG. 4B, a pixel electrode of the lower substrate 200 is deposited by depositing ITO or IZO and a transparent conductive film in a uniform thickness on a second substrate 310 on which the first and second color filter units 810 and 820 are formed. The common electrode 340 facing the 240 is formed.

Next, the organic layer 900 is formed to have a uniform thickness on the second substrate 310 on which the common electrode 340 is formed.

Referring to FIG. 5C, the organic layer 900 is patterned by the mask 910 having the first and second openings 912 and 912 to form the column spacer 350 and the strength reinforcing member 620. The column spacer 350 is formed in the display area DA, and the strength reinforcing member 620 is formed in the peripheral area PA. In this case, the strength reinforcing member 620 is formed to correspond to the upper portion of the second color filter 820.

Subsequently, as illustrated in FIG. 5D, the seal line 500 is formed in the seal line area SA. In addition, the paste containing conductive particles is sprayed on the peripheral area PA in which the strength reinforcing member 620 is formed to form the short point 600.

After placing the upper substrate 300 completed through the above process on the lower substrate 200 and applying pressure and ultraviolet rays at the same time, the upper substrate 300 and the lower substrate 200 by the seal line 500 ) Is firmly combined.

At this time, the strength of the short point 600 is increased by the strength reinforcing member 620 formed inside the short point 600. In addition, as the strength reinforcing member 620 is formed on the second color filter unit 820, the forming height of the strength reinforcing member 620 may be increased to increase the strength of the short point 600. Can be.

6 is an exploded perspective view showing a liquid crystal display device having a liquid crystal display panel according to the present embodiment.

As shown in FIG. 6, the liquid crystal display according to the present invention includes a display unit 1000 and a backlight assembly 1100 formed under the display unit 1000.

The display unit 1000 may include a liquid crystal display panel 100 displaying an image, a source printed circuit board 1010 and a gate printed circuit board 1020 that provide driving signals for driving the liquid crystal display panel 100. Include.

The driving signals provided from the source printed circuit board 1010 and the gate printed circuit board 1020 are applied to the liquid crystal display panel 100 through the data flexible circuit film 1030 and the gate flexible circuit film 1040. The data and gate flexible circuit films 1030 and 1040 may include, for example, a tape carrier package (TCP) or a chip on film (COF). Here, the data and gate flexible circuit films 1030 and 1040 are driven to apply driving signals provided from the source printed circuit board 1010 and the gate printed circuit board 1020 to the liquid crystal display panel 100 at an appropriate timing. A data driving chip 1050 and a gate driving chip 1060 for controlling the timing of the signal are further included.

Since the liquid crystal display panel 100 is the same as the liquid crystal display panel illustrated in FIGS. 1 and 2, the same reference numerals are used, and overlapping descriptions are omitted.

Meanwhile, the backlight assembly 1100 may include a lamp unit 1110 that generates the light, a light guide plate 1120, a lamp unit 1110, and a light guide plate 1120 that guide the liquid crystal display panel 100 by adjusting the light path. A storage container 1130 for storing is provided.

In addition, the backlight assembly 1100 is formed on the light guide plate 1120 to improve the optical characteristics of the light provided from the light guide plate 1120 and the light formed under the light guide plate 1120 and leaked from the light guide plate 1120. It further includes a reflecting plate 1150 for reflecting to the display unit 1000 side.

When the reflective plate 1150 is accommodated in the storage container 1130, the light guide plate 1120 and the lamp unit 1110 are accommodated thereon. Thereafter, the optical sheets 1140 are accommodated on the light guide plate 1120, and the liquid crystal display panel 100 is seated thereon. The source printed circuit board 1110 is bent to the outside of the storage container 1130 and fixed to the rear surface.

An upper portion of the liquid crystal display panel 100 is provided with a chassis 1200 which is coupled to the storage container 1130 to fix the liquid crystal display panel 100 to the storage container 1130.

According to the liquid crystal display, the strength reinforcing member 610 is formed in the short point 600 to increase the strength of the short point 600. At this time, the strength reinforcing member 610 is made of the same material when the column spacer 350 is formed.

In addition, since the strength reinforcing member 620 is formed on the second color filter part 820 formed in the peripheral area PA, the formation height is increased. Thus, the strength of the short point 600 is further increased.

As described above, the display panel according to the present invention includes the strength reinforcing member formed in the short point. The strength reinforcing member is formed of the same material when forming the column spacer. In addition, the strength reinforcing member is formed on the second color filter portion formed in the peripheral area.

Therefore, the strength of the short point is increased as the strength reinforcing member is formed in the short point.

Therefore, the present invention can increase the strength of the short point to prevent the crack of the short point due to the stress generated in the short point after the coupling of the upper substrate and the lower substrate. As a result, since electrical connection between the upper substrate and the lower substrate is stabilized, the display quality of the display device can be improved.

In addition, the present invention since the strength reinforcing member is formed by the same process when forming the column spacer, there is also an effect that can simplify the manufacturing process.

While the invention has been described with reference to the examples, those skilled in the art may variously modify and change the invention without departing from the spirit and scope of the invention as set forth in the claims below. You will understand.

Claims (15)

A first substrate; A second substrate facing the first substrate and including a display area and a peripheral area surrounding the display area; A connection member formed in the peripheral region on the second substrate and electrically connecting the first substrate and the second substrate; And And a strength reinforcing member protruding from the second substrate and disposed in the connection member. The display panel of claim 1, further comprising a cell gap maintaining member formed between the first and second substrates to maintain a distance between the first substrate and the second substrate. The display panel of claim 2, wherein the strength reinforcing member is made of the same material as the cell gap retaining member. The method of claim 1, A first color filter formed in the display area on the second substrate; And And a second color filter formed between the strength reinforcing member and the second substrate. The method of claim 4, wherein The first color filter includes a first color pixel, a second color pixel, and a third color pixel. And the second color filter comprises at least one of the first to third color pixels. The display panel of claim 1, wherein the first substrate comprises a common voltage electrode pad formed to correspond to the connection member to provide a common voltage from the outside to the connection member. The display panel of claim 6, wherein the second substrate further comprises a common electrode provided with the common voltage from the connection member. A first substrate; A second substrate facing the first substrate and including a display area and a peripheral area surrounding the display area; A connection member formed in the peripheral region on the second substrate and electrically connecting the first substrate and the second substrate; A cell gap holding member formed between the first and second substrates to maintain a gap between the first substrate and the second substrate; And And a strength reinforcing member protruding from the second substrate and disposed in the connection member and made of the same material as the cell gap holding member. A first substrate; A second substrate facing the first substrate and having a display area and a peripheral area surrounding the display area, the second substrate having a first color filter formed in the display area and a second color filter formed in the peripheral area; A connection member formed in the peripheral region and electrically connecting the first substrate and the second substrate; A cell gap holding member formed between the first and second substrates to maintain a gap between the first substrate and the second substrate; And And a strength reinforcing member protruding from an upper portion of the second color filter and disposed in the connection member, the strength reinforcing member made of the same material as the cell gap holding member. Forming a first substrate; Forming a second substrate facing the first substrate, the second substrate comprising a display area and a peripheral area surrounding the display area; Forming a strength reinforcing member protruding from the second substrate corresponding to the peripheral region; And And forming a connection member configured to receive the strength reinforcing member therein in the peripheral area on the second substrate, and electrically connecting the first substrate and the second substrate to each other. . The method of claim 10, further comprising forming a cell gap retaining member interposed between the first substrate and the second substrate to correspond to the peripheral area. The method of claim 11, wherein the strength reinforcing member is made of the same material as the cell gap retaining member. The method of claim 10, wherein the forming of the second substrate is performed. And forming a second color filter in the peripheral area so as to correspond to a first color filter and a lower portion of the strength reinforcing member in the display area on the second substrate. The method of claim 13, The first color filter includes a first color pixel, a second color pixel, and a third color pixel. And the second color filter comprises at least one of the first to third color pixels. A light generating device for generating light; And A first substrate, a second substrate comprising a display region and a peripheral region facing the first substrate and displaying an image by the light, and formed in the peripheral region on the second substrate; 2. A display device having a display panel including a connecting member electrically connecting the substrate and a strength reinforcing member protruding from the second substrate and disposed in the connecting member.

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