Abstract:
A method of manufacturing a one drop fill liquid crystal display (ODF LCD) panel is disclosed. By separating sealant and black matrix using a space or photo spacer, the sealant can be hardened by applying ultraviolet light from the side of the color filter substrate without light shielding problems. Moreover, this also completely hardens the sealant, thereby preventing pollution of the liquid crystal material. This further improves the efficiency of the liquid crystal material.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates in general to a method of manufacturing a liquid crystal display (LCD) panel. In particular, the present invention relates to a method of manufacturing a one drop fill (ODF) LCD panel.  
           [0003]    2. Description of the Related Art  
           [0004]    [0004]FIG. 1 a  is a perspective view showing a conventional one drop fill liquid crystal display (ODF LCD) panel, FIG. 1 b  is a sectional view showing the conventional ODF LCD panel. In FIGS. 1 a  and  1   b,  a color pixel area  3 , a black matrix  5  and a sealant  7  are respectively positioned on the surface of a color filter substrate  1 , and a liquid crystal material  8  is located on a array substrate  9 . In the process of manufacturing a conventional ODF LCD panel, it is necessary to apply ultraviolet light (UV light, not shown) to harden the sealant  7  while superposing the color filter substrate  1  and the array substrate  9 . However, when the UV light is applied from the side of the array substrate  9 , the UV light is partly shielded by the circuits of the array substrate  9 . As a result, the sealant  7  can&#39;t completely harden. This may cause the liquid crystal material  8  to become polluted and decrease the efficiency of the liquid crystal material  8 . On the other hand, when the UV light is applied from the side of the color filter substrate  1 , the UV light is still partly shielded by the black matrix  5  of the color filter substrate  1 . As a result, the sealant  7  can&#39;t completely harden, once again raising the possibility that the liquid crystal material  8  will become polluted and decrease the efficiency of the liquid crystal material  8 .  
         SUMMARY OF THE INVENTION  
         [0005]    The present invention is intended to overcome the above-described disadvantages.  
           [0006]    The present invention provides a first method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a sealant area on the first peripheral region, wherein the sealant area is located at the outside of the black matrix area and separated from the black matrix area by a predetermined space; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0007]    The present invention further provides a second method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a sealant area on the second peripheral region, wherein the sealant area is located opposite to the outside of the black matrix area and separated from the black matrix area by a predetermined space; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0008]    The present invention further provides a third method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the first peripheral region, wherein the photo spacer area overlaps the outside edge of the black matrix area; forming a sealant area on the first peripheral region, wherein the sealant area is located at the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0009]    The present invention further provides a fourth method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the first peripheral region, wherein the photo spacer area overlaps the outside edge of the black matrix area; forming a sealant area on the second peripheral region, wherein the sealant area is located opposite to the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0010]    The present invention further provides a fifth method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the second peripheral region, wherein the photo spacer area is located at a first position opposite to the outside edge of the black matrix area; forming a sealant area on the first peripheral region, wherein the sealant area is located at a second position opposite to the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0011]    The present invention further provides a sixth method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the second peripheral region, wherein the photo spacer area is located opposite to the outside edge of the black matrix area; forming a sealant area on the second peripheral region, wherein the sealant area is located at the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0012]    The present invention further provides a seventh method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the first peripheral region, wherein the photo spacer area is located at the outside of the black matrix area and separated from the black matrix area by a predetermined space; forming a sealant area on the first peripheral region, wherein the sealant area is located at the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0013]    The present invention further provides a eighth method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the first peripheral region, wherein the photo spacer area is located at the outside of the black matrix area and separated from the black matrix area by a predetermined space; forming a sealant area on the second peripheral region, wherein the sealant area is located opposite to the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0014]    The present invention further provides a ninth method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the second peripheral region, wherein the photo spacer area is located opposite to the outside of the black matrix area and separated from the black matrix area by a predetermined space; forming a sealant area on the first peripheral region, wherein the sealant area is located opposite to the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0015]    The present invention further provides a tenth method of manufacturing a one drop fill liquid crystal display panel, including the steps of: providing a first substrate and a second substrate, the first substrate having a first central region and a first peripheral region, and the second substrate having a second central region and a second peripheral region, wherein a color pixel area and a black matrix area are positioned on the surface of the first central region, and the first central region and the first peripheral region are positioned opposite to the second central region and the second peripheral region respectively; forming a photo spacer area on the second peripheral region, wherein the photo spacer area is located opposite to the outside of the black matrix area and separated from the black matrix area by a predetermined space; forming a sealant area on the second peripheral region, wherein the sealant area is located at the outside of the photo spacer area; dispersing at least one drop of a liquid crystal on the second central region; superposing the first substrate and the second substrate under a condition of reduced ambient air pressure; and curing the sealant area by applying ultraviolet light from a side of the first substrate.  
           [0016]    By separating sealant and black matrix using a space or photo spacer according to above methods, the sealant can be hardened by applying ultraviolet light from the side of the color filter substrate without light shielding problems. Moreover, this also completely hardens the sealant, thereby preventing pollution of the liquid crystal material. This further improves the efficiency of the liquid crystal material. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0017]    The present invention can be more fully understood by reading the subsequent detailed description in conjunction with the examples and references made to the accompanying drawings, wherein:  
         [0018]    [0018]FIG. 1 a  is a perspective view showing a conventional ODF LCD panel, and FIG. 1 b  is a sectional view showing the conventional ODF LCD panel of FIG. 1 a;    
         [0019]    [0019]FIG. 2 a  is a perspective view showing an ODF LCD panel of the first embodiment of the present invention, and FIG. 2 b  is a sectional view showing the ODF LCD panel of FIG. 2 a;    
         [0020]    [0020]FIG. 3 a  is a perspective view showing an ODF LCD panel of the second embodiment of the present invention, and FIG. 3 b  is a sectional view showing the ODF LCD panel of FIG. 3 a;    
         [0021]    [0021]FIG. 4 a  is a perspective view showing an ODF LCD panel of the third embodiment of the present invention, and FIG. 4 b  is a sectional view showing the ODF LCD panel of FIG. 4 a;    
         [0022]    [0022]FIG. 5 a  is a perspective view showing an ODF LCD panel of the fourth embodiment of the present invention, and FIG. 5 b  is a sectional view showing the ODF LCD panel of FIG. 5 a;    
         [0023]    [0023]FIG. 6 a  is a perspective view showing an ODF LCD panel of the fifth embodiment of the present invention, and FIG. 6 b  is a sectional view showing the ODF LCD panel of FIG. 6 a;    
         [0024]    [0024]FIG. 7 a  is a perspective view showing an ODF LCD panel of the sixth embodiment of the present invention, and FIG. 7 b  is a sectional view showing the ODF LCD panel of FIG. 7 a;    
         [0025]    [0025]FIG. 8 a  is a perspective view showing an ODF LCD panel of the seventh embodiment of the present invention, and FIG. 8 b  is a sectional view showing the ODF LCD panel of FIG. 8 a;    
         [0026]    [0026]FIG. 9 a  is a perspective view showing an ODF LCD panel of the eighth embodiment of the present invention, and FIG. 9 b  is a sectional view showing the ODF LCD panel of FIG. 9 a;    
         [0027]    [0027]FIG. 10 a  is a perspective view showing an ODF LCD panel of the ninth embodiment of the present invention, and FIG. 10 b  is a sectional view showing the ODF LCD panel of FIG. 10 a;  and  
         [0028]    [0028]FIG. 11 a  is a perspective view showing an ODF LCD panel of the tenth embodiment of the present invention, and FIG. 11 b  is a sectional view showing the ODF LCD panel of FIG. 11 a;   
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0029]    First Embodiment  
         [0030]    Refer to FIGS. 2 a  and  2   b.  A color pixel area  103  and a black matrix area  105  are preformed on a color filter substrate  101 . First, as shown in FIG. 2 a,  a sealant area  107  is formed on a peripheral region  104  of the color filter substrate  101 , and the sealant area  107  is separated from the black matrix area  105  by a predetermined space. Secondly, at least one drop of a liquid crystal  108  is dripped down on an array substrate  109 . Next, the color filter substrate  101  and the array substrate  109  are superposed face-to-face as shown in FIG. 2 a  under a vacuum condition. Further, the sealant area  107  is cured by applying ultraviolet light from a side of the color filter substrate  101 , and then an ODF LCD panel as shown in FIG. 2 b  is obtained.  
         [0031]    According to FIG. 2 b,  because the sealant area  107  and the black matrix area  105  are separated by the space, the sealant area  107  is completely hardened while applying ultraviolet light from the side of the color filter substrate  101  without the light shielding problems resulting from the black matrix area  105 .  
         [0032]    Furthermore, the above liquid crystal  108 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0033]    Second Embodiment  
         [0034]    Refer to FIGS. 3 a  and  3   b.  A color pixel area  113  and a black matrix area  115  are preformed on a color filter substrate  111 . First, as shown in FIG. 3 a,  a sealant area  117  is formed on an array substrate  119 . The sealant area  117  is located at a position opposite to the outside of the black matrix area  115  and separated from the black matrix area  115  by a predetermined space. Secondly, at least one drop of a liquid crystal  118  is dripped down on the array substrate  119 . Next, the color filter substrate  111  and the array substrate  119  are superposed face-to-face as shown in FIG. 3 a  under a vacuum condition. Further, the sealant area  117  is cured by applying ultraviolet light from a side of the color filter substrate  111 , and then an ODF LCD panel as shown in FIG. 3 b  is obtained.  
         [0035]    According to FIG. 3 b,  because the sealant area  117  and the black matrix area  115  are separated by the space, the sealant area  117  is completely hardened while applying ultraviolet light from the side of the color filter substrate  111  without the light shielding problems resulting from the black matrix area  115 .  
         [0036]    Furthermore, the above liquid crystal  118 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0037]    Third Embodiment  
         [0038]    Refer to FIGS. 4 a  and  4   b.  A color pixel area  123  and a black matrix area  125  are preformed on a color filter substrate  121 . First, as shown in FIG. 4 a,  a photo spacer area  126  is formed on a outside edge of the black matrix area  125 , wherein the photo spacer area  126  overlaps the outside edge of the black matrix area  125 . Secondly, a sealant area  127  is formed on a peripheral region  124  of the color filter substrate  121 , and the sealant area  127  is located at the outside of the photo spacer area  126 . Next, at least one drop of a liquid crystal  128  is dripped down on an array substrate  129 . Moreover, the color filter substrate  121  and the array substrate  129  are superposed face-to-face as shown in FIG. 4 a  under a vacuum condition. Further, the sealant area  127  is cured by applying ultraviolet light from a side of the color filter substrate  121 , and then an ODF LCD panel as shown in FIG. 4 b  is obtained.  
         [0039]    According to FIG. 4 b,  because the sealant area  127  and the black matrix area  125  are separated by the photo spacer area  126 , the sealant area  127  is completely hardened while applying ultraviolet light from the side of the color filter substrate  121  without the light shielding problems resulting from the black matrix area  125 . Moreover, this also completely hardens the sealant area  127 , thereby preventing pollution of the liquid crystal  128 . This further improves the efficiency of the liquid crystal  128 .  
         [0040]    Furthermore, the above liquid crystal  128 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0041]    Fourth Embodiment  
         [0042]    Refer to FIGS. 5 a  and  5   b.  A color pixel area  133  and a black matrix area  135  are preformed on a color filter substrate  131 . First, as shown in FIG. 5 a,  a photo spacer area  136  is formed on an outside edge of the black matrix area  135 , wherein the photo spacer area  136  overlaps the outside edge of the black matrix area  135 . Secondly, a sealant area  137  is formed on an array substrate  139 , wherein the sealant area  137  is located at a position opposite to the outside of the photo spacer area  136 . Next, at least one drop of a liquid crystal  138  is dripped down on the array substrate  139 . Moreover, the color filter substrate  131  and the array substrate  139  are superposed face-to-face as shown in FIG. 5 a  under a vacuum condition. Further, the sealant area  137  is cured by applying ultraviolet light from a side of the color filter substrate  131 , and then an ODF LCD panel as shown in FIG. 5 b  is obtained.  
         [0043]    According to FIG. 5 b,  because the sealant area  137  and the black matrix area  135  are separated by the photo spacer area  136 , the sealant area  137  is completely hardened while applying ultraviolet light from the side of the color filter substrate  131  without the light shielding problems resulting from the black matrix area  135 . Moreover, this also completely hardens the sealant area  137 , thereby preventing pollution of the liquid crystal  138 . This further improves the efficiency of the liquid crystal  138 .  
         [0044]    Furthermore, the above liquid crystal  138 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0045]    Fifth Embodiment  
         [0046]    Refer to FIGS. 6 a  and  6   b.  A color pixel area  143  and a black matrix area  145  are preformed on a color filter substrate  141 . First, as shown in FIG. 6 a,  a photo spacer area  146  is formed on an array substrate  149 , wherein the photo spacer area  146  is located at a first position opposite to the outside edge of the black matrix area  145 . Secondly, a sealant area  147  is formed on a peripheral region  144  of the color filter substrate  141 , wherein the sealant area  147  is located at a second position opposite to the outside of the photo spacer area  146 . Next, at least one drop of a liquid crystal  148  is dripped down on the array substrate  149 . Moreover, the color filter substrate  141  and the array substrate  149  are superposed face-to-face as shown in FIG. 6 a  under a vacuum condition. Further, the sealant area  147  is cured by applying ultraviolet light from a side of the color filter substrate  141 , and then an ODF LCD panel as shown in FIG. 6 b  is obtained.  
         [0047]    According to FIG. 6 b,  because the sealant area  147  and the black matrix area  145  are separated by the photo spacer area  146 , the sealant area  147  is completely hardened while applying ultraviolet light from the side of the color filter substrate  141  without the light shielding problems resulting from the black matrix area  145 . Moreover, this also completely hardens the sealant area  147 , thereby preventing pollution of the liquid crystal  148 . This further improves the efficiency of the liquid crystal  148 .  
         [0048]    Furthermore, the above liquid crystal  148 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0049]    Sixth Embodiment  
         [0050]    Refer to FIGS. 7 a  and  7   b.  A color pixel area  153  and a black matrix area  155  are preformed on a color filter substrate  151 . First, as shown in FIG. 7 a,  a photo spacer area  156  is formed on an array substrate  159 , wherein the photo spacer area  156  is located at a position opposite to the outside edge of the black matrix area  155 . Secondly, a sealant area  157  is formed on the array substrate  159 , wherein the sealant area  157  is located at the outside of the photo spacer area  156 . Next, at least one drop of a liquid crystal  158  is dripped down on the array substrate  159 . Moreover, the color filter substrate  151  and the array substrate  159  are superposed face-to-face as shown in FIG. 7 a  under a vacuum condition. Further, the sealant area  157  is cured by applying ultraviolet light from a side of the color filter substrate  151 , and then an ODF LCD panel as shown in FIG. 7 b  is obtained.  
         [0051]    According to FIG. 7 b,  because the sealant area  157  and the black matrix area  155  are separated by the photo spacer area  156 , the sealant area  157  is completely hardened while applying ultraviolet light from the side of the color filter substrate  151  without the light shielding problems resulting from the black matrix area  155 . Moreover, this also completely hardens the sealant area  157 , thereby preventing pollution of the liquid crystal  158 . This further improves the efficiency of the liquid crystal  158 .  
         [0052]    Furthermore, the above liquid crystal  158 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0053]    Seventh Embodiment  
         [0054]    Refer to FIGS. 8 a  and  8   b.  A color pixel area  163  and a black matrix area  165  are preformed on a color filter substrate  161 . First, as shown in FIG. 8 a,  a photo spacer area  166  is formed on a peripheral region  164  of the color filter substrate  161 . The photo spacer area  166  is located at the outside of the black matrix area  165  and is separated from the black matrix area  165  by a predetermined space. Secondly, a sealant area  167  is formed on the peripheral region  164 , and the sealant area  167  is located at the outside of the photo spacer area  166 . Next, at least one drop of a liquid crystal  168  is dripped down on an array substrate  169 . Moreover, the color filter substrate  161  and the array substrate  169  are superposed face-to-face as shown in FIG. 8 a  under a vacuum condition. Further, the sealant area  167  is cured by applying ultraviolet light from a side of the color filter substrate  161 , and then an ODF LCD panel as shown in FIG. 8 b  is obtained.  
         [0055]    According to FIG. 8 b,  because the sealant area  167  and the black matrix area  165  are separated by the photo spacer area  166 , the sealant area  167  is completely hardened while applying ultraviolet light from the side of the color filter substrate  161  without the light shielding problems resulting from the black matrix area  165 . Moreover, this also completely hardens the sealant area  167 , thereby preventing pollution of the liquid crystal  168 . This further improves the efficiency of the liquid crystal  168 .  
         [0056]    Furthermore, the above liquid crystal  168 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0057]    Eighth Embodiment  
         [0058]    Refer to FIGS. 9 a  and  9   b.  A color pixel area  173  and a black matrix area  175  are preformed on a color filter substrate  171 . First, as shown in FIG. 9 a,  a photo spacer area  176  is formed on a peripheral region  174  of the color filter substrate  171 . The photo spacer area  176  is located at the outside of the black matrix area  175  and is separated from the black matrix area  175  by a predetermined space. Secondly, a sealant area  177  is formed on an array substrate  179 , wherein the sealant area  177  is located at a position opposite to the outside of the photo spacer area  176 . Next, at least one drop of a liquid crystal  178  is dripped down on the array substrate  179 . Moreover, the color filter substrate  171  and the array substrate  179  are superposed face-to-face as shown in FIG. 9 a  under a vacuum condition. Further, the sealant area  177  is cured by applying ultraviolet light from a side of the color filter substrate  171 , and then an ODF LCD panel as shown in FIG. 9 b  is obtained.  
         [0059]    According to FIG. 9 b,  because the sealant area  177  and the black matrix area  175  are separated by the photo spacer area  176 , the sealant area  177  is completely hardened while applying ultraviolet light from the side of the color filter substrate  171  without the light shielding problems resulting from the black matrix area  175 . Moreover, this also completely hardens the sealant area  177 , thereby preventing pollution of the liquid crystal  178 . This further improves the efficiency of the liquid crystal  178 .  
         [0060]    Furthermore, the above liquid crystal  178 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0061]    Ninth Embodiment  
         [0062]    Refer to FIGS. 10 a  and  10   b.  A color pixel area  183  and a black matrix area  185  are preformed on a color filter substrate  181 . First, as shown in FIG. 10 a,  a photo spacer area  186  is formed on an array substrate  189 . The photo spacer area  186  is located at a position opposite to the outside of the black matrix area  185  and is separated from the black matrix area  185  by a predetermined space. Secondly, a sealant area  187  is formed on a peripheral region  184  of the color filter substrate  181 , and the sealant area  187  is located at a position opposite to the outside of the photo spacer area  186 . Next, at least one drop of a liquid crystal  188  is dripped down on the array substrate  189 . Moreover, the color filter substrate  181  and the array substrate  189  are superposed face-to-face as shown in FIG. 10 a  under a vacuum condition. Further, the sealant area  187  is cured by applying ultraviolet light from a side of the color filter substrate  181 , and then an ODF LCD panel as shown in FIG. 10 b  is obtained.  
         [0063]    According to FIG. 10 b,  because the sealant area  187  and the black matrix area  185  are separated by the photo spacer area  186 , the sealant area  187  is completely hardened while applying ultraviolet light from the side of the color filter substrate  181  without the light shielding problems resulting from the black matrix area  185 . Moreover, this also completely hardens the sealant area  187 , thereby preventing pollution of the liquid crystal  188 . This further improves the efficiency of the liquid crystal  188 .  
         [0064]    Furthermore, the above liquid crystal  188 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0065]    Tenth Embodiment  
         [0066]    Refer to FIGS. 11 a  and  11   b.  A color pixel area  193  and a black matrix area  195  are preformed on a color filter substrate  191 . First, as shown in FIG. 11 a,  a photo spacer area  196  is formed on an array substrate  199 . The photo spacer area  196  is located at a position opposite to the outside of the black matrix area  195  and is separated from the black matrix area  195  by a predetermined space. Secondly, a sealant area  197  is formed on the array substrate  199 , and the sealant area  197  is located at the outside of the photo spacer area  196 . Next, at least one drop of a liquid crystal  198  is dripped down on the array substrate  199 . Moreover, the color filter substrate  191  and the array substrate  199  are superposed face-to-face as shown in FIG. 11 a  under a vacuum condition. Further, the sealant area  197  is cured by applying ultraviolet light from a side of the color filter substrate  191 , and then an ODF LCD panel as shown in FIG. 11 b  is obtained.  
         [0067]    According to FIG. 11 b,  because the sealant area  197  and the black matrix area  195  is separated by the photo spacer area  196 , the sealant area  197  is completely hardened while applying ultraviolet light from the side of the color filter substrate  191  without the light shielding problems resulting from the black matrix area  195 . Moreover, this also completely hardens the sealant area  197 , thereby preventing pollution of the liquid crystal  198 . This further improves the efficiency of the liquid crystal  198 .  
         [0068]    Furthermore, the above liquid crystal  198 , for example, is a mixture, and the mixture is preferably composed of liquid crystal materials and spacers.  
         [0069]    Finally, while the invention has been described by way of example and in terms of the preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements as would be apparent to those skilled in the art. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.