TWI360005B - Liquid crystal display panel and manufacturing met - Google Patents

Description

1360005 IX. Description of the Invention: The present invention relates to a flat display panel and a method of fabricating the same, and more particularly to a liquid crystal display panel and a method of fabricating the same. [Prior Art]

With the advent of the digital era, the technology of liquid crystal display devices has also grown rapidly and has become an indispensable electronic product, so the technical and functional requirements for liquid crystal display devices are also increasing. Generally, a liquid crystal display device mainly includes a liquid crystal display panel and a backlight module. The liquid crystal display panel mainly has a color filter substrate, a thin film transistor substrate, and a liquid crystal layer interposed between the two substrates. The backlight module is used as a backlight to uniformly distribute light from a light source on the surface of the liquid crystal display panel.

Usually * in the liquid crystal display panel * the liquid crystal layer has a plurality of liquid crystal molecules stacked on each other. Between the liquid crystal layer and the color filter substrate, or between the liquid crystal layer and the thin film transistor, an alignment film is added to assist the liquid crystal molecules to be aligned to form a pre-tilt angle, thereby accelerating The reaction time of liquid crystal molecules. Referring to FIG. 1A and FIG. 1B, a method for manufacturing the alignment film 12 of a liquid crystal display panel 1 is provided. The liquid crystal display panel 1 has a thin film transistor substrate 11 which is disposed on a transporting platform. . When the alignment film 12 is formed, a material of an alignment film 12, such as polyimide, is coated on the thin film transistor substrate 11 and cured to be 5 1360005.

The "rubbing" method means that a roller 2 having a plurality of bristles 21 is disposed on the thin film transistor substrate 11 and the roller 2 and the thin film transistor substrate 11 are relatively moved, that is, the rotation of the roller 2 The direction VI is opposite to the moving direction V2 of the thin film transistor substrate 11, so that the bristles 21 of the roller 2 directly contact the alignment film 12 to hook out a plurality of fine scratches 121. In addition to the fine scratches 121 generated by the bristles 21 to assist in aligning the liquid crystal molecules, the alignment film 12 can utilize the bristles 21 of the roller 2 to brush the temperature generated by the alignment film 12, so that the alignment film 12 itself has The functional groups are arranged in a certain fixed direction to assist in alignment of the liquid crystal molecules in the liquid crystal layer. The alignment liquid crystal molecules can be arranged in accordance with the scratches of the surface of the alignment film 12 or the direction of the functional groups, so that the alignment film 12 has become one of the indispensable components of the liquid crystal display panel. However, when the plurality of scratches 121 are swept on the surface of the alignment film 12 by the bristles 21 of the roller 2, the debris of the alignment film 12 (not shown) is generated, which may cause pollution or even influence on the alignment film 12. The quality of the liquid crystal display panel 1.

Therefore, it is one of the current important issues to provide a liquid crystal display panel having an alignment film and a method of manufacturing the same without using a roller to directly contact an alignment film to solve the above problems. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a liquid crystal display panel having an alignment film and a method of manufacturing the same, which can form an alignment film without directly contacting an alignment film. 6 1360005 In order to achieve the above object, a liquid crystal display panel according to the present invention comprises a first substrate, a second substrate and a liquid crystal layer. The first substrate has a patterned substrate and an alignment film, and the alignment film is disposed on the patterned substrate. The material of the alignment film is a liquid crystal prepolymer, and the second substrate is opposite to the first substrate. The liquid crystal layer is interposed between the second substrate and the first substrate.

In order to achieve the above object, a method for manufacturing a liquid crystal display panel according to the present invention comprises the steps of: coating a liquid crystal prepolymer on a patterned substrate; curing a liquid crystal prepolymer to form a first substrate; The second substrate is above the first substrate; and a liquid crystal layer is disposed between the first substrate and the second substrate.

According to the invention, the liquid crystal display panel and the method of manufacturing the same according to the present invention are provided on the patterned substrate by curing the liquid crystal prepolymer to form an alignment film, and the liquid crystal layer is interposed therebetween. Between the two substrates and the first substrate. In contrast to the prior art, the present invention does not require the use of conventional roller bristles to directly contact the surface of the alignment film, but by forming a groove by patterning the substrate, and then forming an alignment film thereon. In this way, in addition to avoiding the contamination of the debris caused by the direct brushing of the roller bristles, the size of the roller is increased without the limitation of the panel size, thereby increasing the equipment cost. In the embodiment of the present invention, the groove arrangement direction of the patterned substrate can be arranged in different directions according to different needs of the user, so that the present invention forms a liquid crystal display panel having a multi-region vertical alignment type (MVA), thereby improving the viewing angle. Breadth. The present invention is a material for an alignment film by a liquid crystal-like prepolymer, and is suitable for panels of various sizes. Also due to the shape and liquid of the liquid crystal prepolymer 7

Claims (1)

1360005 September 27, 100, revised replacement page X. Patent application scope: 1. A liquid crystal display panel comprising: a first substrate having a patterned substrate and an alignment film, wherein the alignment film is disposed on the pattern On the substrate, the material of the alignment film is a liquid crystal prepolymer; a second substrate is disposed opposite to the first substrate; and a liquid crystal layer is sandwiched between the second substrate and the first substrate The patterned substrate has a patterned layer, and the long axes of the liquid crystal prepolymers are arranged parallel to each other on the patterned layer with a specific direction as a major axis. 2. The liquid crystal display panel of claim 1, wherein the patterned substrate has a transparent substrate and a patterned layer, the patterned layer is disposed on the transparent substrate, and the patterned layer is formed. Multiple grooves. 3. The liquid crystal display panel of claim 2, wherein the patterned layer is a halogen electrode layer. 4. The liquid crystal display panel of claim 2, wherein the patterned layer is a halogen electrode layer and a common electrode layer. 5. The liquid crystal display panel of claim 2, wherein the modified page of the modified page of September 27, 18, 100 is a color filter layer. The liquid crystal display panel of claim 2, wherein the material of the patterned layer is a polymer. The liquid crystal display panel of claim 2, wherein the patterned substrate has an electric field direction, and the groove direction of the patterned layer is perpendicular or parallel to the electric field direction. The liquid crystal display panel of claim 2, wherein the width of the grooves is greater than about 50 nm. The liquid crystal display panel of claim 2, wherein the ratio of the depth to the width of the plurality of grooves is 1/8 or more. The liquid crystal display panel of claim 1, wherein the patterned substrate is a transparent substrate having a plurality of grooves formed on the surface. The liquid crystal display panel of claim 10, wherein the width of the overlapping grooves is greater than about 50 nm. For example, in the liquid crystal display panel according to claim 10, wherein the ratio of the depth to the width of the repeating grooves is greater than or equal to 1/8. </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; a first direction arrangement 'the other part of the groove is arranged in a second direction, as described in claim 13 of the liquid, the first direction and the second direction are parallel or perpendicular to each other, = application The liquid crystal display panel according to the item (4), wherein the width of the groove is gradually increased in one direction. The liquid crystal display panel of the first aspect, wherein the depth of the trench is gradually increased in one direction. The liquid crystal as described in claim 10 of the patent application has a cross-sectional shape of each of the grooves in an asymmetrical geometry. /, as shown in claim 10 of the scope of the patent application, the cross-sectional shape of each of the grooves is a triangle or a trapezoid, and the liquid crystal according to claim 18 of the patent application has two dimples. The side of the equal length. The display panel, wherein the liquid crystal 4 is not a panel as described in claim 1, wherein the 1360005 modified replacement page on September 27, 100 may be a liquid crystal retardation film. The liquid crystal display panel of claim 1, wherein the liquid crystal prepolymer has a core group, and the core group is an aromatic chain. The liquid crystal display panel according to claim 21, wherein the core group has at least one substituent, and the substituent is a polar molecule. A method for manufacturing a liquid crystal display panel, comprising the steps of: coating a liquid crystal prepolymer on a patterned substrate; curing the liquid crystal prepolymer to form a first substrate; and disposing a second substrate opposite to each other And a liquid crystal layer disposed between the first substrate and the second substrate; wherein the patterned substrate has a patterned layer, and the long axis of the liquid crystal prepolymer is in a specific direction The spindles are arranged parallel to each other on the patterned layer. The method of claim 23, wherein after the step of applying the liquid crystal prepolymer, the method further comprises: applying an electric field to the patterned substrate, the liquid crystal prepolymers being parallel or Vertically aligned in the direction of the electric field. The method of manufacturing the invention of claim 24, wherein after the step of curing the liquid crystal prepolymer, the method further comprises: removing the electric field. The method of claim 23, wherein the patterned substrate has a transparent substrate and a patterned layer, the patterned layer is disposed on the transparent substrate, and the patterned layer is formed into a plurality Groove. 27. The method of manufacture of claim 26, wherein the patterned layer is a monolayer electrode layer. 28. The method of manufacturing of claim 26, wherein the patterned layer is a monolayer electrode layer and a common electrode layer. 29. The method of manufacturing of claim 26, wherein the patterned layer is a color filter layer. The manufacturing method according to claim 26, wherein the material of the patterned layer is a polymer. The manufacturing method of claim 26, wherein the patterned substrate has an electric field direction, and the groove directions of the patterned layer are perpendicular or parallel to the electric field direction. </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The manufacturing method according to claim 26, wherein the ratio of the depth to the width of the grooves is 1/8 or more. The manufacturing method according to claim 23, wherein the substrate is a transparent substrate having a plurality of grooves formed on the surface. 35. The method of manufacture of claim 34, wherein the width of the grooves is greater than about 50 nanometers. The manufacturing method according to claim 34, wherein the ratio of the depth to the width of the grooves is 1/8 or more. The manufacturing method of claim 34, wherein the grooves of the patterned substrate, a portion of the trenches are arranged along a first direction, and the other portions of the trenches are along a first Two directions. 38. The method of manufacturing of claim 37, wherein the first direction and the second direction are parallel or perpendicular to each other. 39. The manufacturing method according to claim 34, wherein each of the 23 136 0005, September 27, pp. correction replacement page groove width is gradually increased in one direction. 40. The method of manufacturing of claim 34, wherein the depth of each of the grooves is gradually increased in one direction. The manufacturing method according to claim 34, wherein the cross-sectional shape of each of the grooves is an asymmetrical geometric shape. 42. The manufacturing method according to claim 34, wherein the cross-sectional shape of each of the grooves is a triangle or a trapezoid. 43. The method of manufacture of claim 42, wherein each of the triangles has sides of two unequal lengths. The manufacturing method according to claim 23, wherein the alignment film is a liquid crystal retardation film. The manufacturing method according to claim 23, wherein the liquid crystal prepolymer has a core group which is an aromatic chain. 46. The method of claim 45, wherein the core group has at least one substituent, the substituent being a polar molecule. 0 24 1360005 TW6628PA Patent Application No. 096104796 Figure 3A 1360005 TW6628PA Patent Application No. 096104796 Amendment Year #月&gt;§曰Revision Replacement Ping Γ311 312 32(32.) ,G1 '312 ZL^±: -311 Figure 3B Figure 3C