TWI479231B - Liquid crystal panel and method for manufacturing the same - Google Patents

Description

Liquid crystal display panel and method of manufacturing same

The present invention relates to a 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.

In recent years, in order to improve the display quality of liquid crystal displays, blue phase liquid crystal materials with fast response characteristics have been paid more and more attention. Among them, blue phase is a kind of cholesteric phase and isotropic phase. The liquid crystal phase between them exists in a very narrow temperature range. The blue phase has three different phases, namely a first blue phase (BP I), a second blue phase (BP II), and a third blue phase (BP III), wherein the first blue phase and the second blue phase are cubes. The cubic, while the third blue phase is an amorphous structure.

Although the current technology has also developed the addition of trace polymer monomers to liquid crystal materials, when the liquid crystal state is blue phase, the polymer monomer is photopolymerized to bond to a high molecular polymer to achieve a stable blue phase liquid crystal structure. effect. However, the polymerized blue phase liquid crystal still has some problems such as a high driving voltage and a problem of the tape effect.

Embodiments of the present invention provide a liquid crystal display panel and a method of fabricating the same, which pass through a polymer polymerization network structure in a display region to arrange liquid crystal molecules of liquid crystals in a display region to be arranged in a blue phase structure.

The embodiment of the invention provides a liquid crystal display panel, which comprises a first transparent substrate, a second transparent substrate, a polymer polymerization network structure, a liquid crystal and a first sealant. The second transparent substrate is opposite to the first transparent substrate, wherein the first transparent substrate has a display area. The polymer polymerization network structure is arranged in the first light transmission The substrate and the second transparent substrate are disposed, and the polymer polymerization network structure is located in the display area. The liquid crystal is disposed between the first transparent substrate and the second transparent substrate, and the liquid crystal penetrates into the polymer polymerization network structure. The first sealant is disposed between the first transparent substrate and the second transparent substrate, and has a gap between the polymer polymerization network structure and the first sealant.

The embodiment of the invention further provides a method for manufacturing a liquid crystal display panel, which comprises the following steps. First, a first light transmissive substrate is provided, the first light transmissive substrate having a display area. Next, a polymer polymerization network structure is formed on the first transparent substrate, and the polymer polymerization network structure is located in the display region. Then, a first sealant is formed on the first transparent substrate, and the first sealant surrounds the display area. Next, liquid crystal is disposed on the first light-transmissive substrate, and the liquid crystal penetrates into the polymer polymerization network structure. Furthermore, a second transparent substrate is provided, and the second transparent substrate is opposite to the first transparent substrate. The first transparent substrate and the second transparent substrate are adhered through the first sealant to seal the liquid crystal between the first transparent substrate and the second transparent substrate. The polymer polymerization network structure is used for arranging the liquid crystal molecules of the liquid crystal in the display area, and the polymer polymerization network structure has a gap between the first frame glue and the first frame glue.

In the method for fabricating a liquid crystal display panel according to another embodiment of the present invention, the step of forming the polymer polymerization network structure includes the following steps. First, an initial liquid crystal layer is disposed on the first light transmissive substrate, the initial liquid crystal layer comprising an initial liquid crystal and a polymerized monomer, wherein the initial liquid crystal is a blue phase liquid crystal. Next, the initial liquid crystal layer in the display region is subjected to a polymer stabilization treatment to polymerize the polymerization monomer. Then, the initial liquid crystal is separated from the first light-transmitting substrate.

In summary, the liquid crystal display panel and the method for fabricating the same according to the embodiments of the present invention pass through a polymer polymerization network structure formed on the first transparent substrate. It can break through the limitation of liquid crystal material, and obtain the characteristic of blue phase in the process of display panel by using general liquid crystal material.

The detailed description of the present invention and the accompanying drawings are to be understood by the claims The scope is subject to any restrictions.

[Example of Liquid Crystal Display Panel 100 and Method of Manufacturing Same]

Please refer to FIG. 1 and FIG. 1A to FIG. 1C. FIG. 1 is a schematic plan view of a liquid crystal display panel 100 according to an embodiment of the present invention, and FIGS. 1A to 1C are cross-sectional views showing the liquid crystal display panel 100 of FIG. schematic diagram. As shown in FIG. 1A and FIG. 1C , the liquid crystal display panel 100 includes a first transparent substrate 110 , a second transparent substrate 120 , a polymer network structure 130 , a liquid crystal 140 , and a first sealant 150 . The second transparent substrate 120 is opposite to the first transparent substrate 110 , wherein the first transparent substrate 110 has a display region 111 .

The polymer polymerization network structure 130 is disposed between the first transparent substrate 110 and the second transparent substrate 120 , and the polymer polymerization network structure 130 is located in the display region 111 . The liquid crystal 140 is disposed between the first transparent substrate 110 and the second transparent substrate 120 , and the liquid crystal 140 is infiltrated into the polymer polymerization network structure 130 . The first sealant 150 is disposed between the first transparent substrate 110 and the second transparent substrate 120 to seal the liquid crystal 140 between the first transparent substrate 110 and the second transparent substrate 120. The polymer polymerization network structure 130 is used to arrange the liquid crystal molecules of the liquid crystal 140 in the display region 111, and the polymer polymerization network structure 130 and the first sealant 150 have a gap D therebetween.

First, the first transparent substrate 110 and the second transparent substrate 120 are provided. The first transparent substrate 110 is opposite to the second transparent substrate 120, and the first transparent substrate is transparent. The distance between the substrate 110 and the second transparent substrate 120 is, for example, 2 micrometers to 100 micrometers (micrometer, μm). For the first transparent substrate 110 or the second transparent substrate 120, an alkali-free glass substrate such as aluminosilicate glass, aluminoborosilicate glass or bismuth borate glass may be used, and for example, a quartz substrate or a ceramic substrate may be used. Or plastic substrate. In other embodiments, the first transparent substrate 110 or the second transparent substrate 120 may also be a flexible or flexible substrate. An element such as a pixel or a transistor may be disposed on the first transparent substrate 110 or the second transparent substrate 120.

In the embodiment, the first transparent substrate 110 is, for example, an active device array substrate, and the first transparent substrate 110 is formed with, for example, a thin film transistor array and a protective layer. The protective layer may have a conductive layer, such as an indium tin oxide layer, a protective layer to protect the thin film transistor array, and may be used to planarize the surface of the thin film transistor array. The second transparent substrate 120 is, for example, a color filter substrate, and the surface of the second transparent substrate 120 may have a color filter pattern layer (not shown) and a common electrode layer (not shown), and the common electrode layer is disposed on the second transparent substrate 120. On the color filter pattern layer. It is to be noted that in other embodiments, the first transparent substrate 110 can be a color filter substrate, and the second transparent substrate 120 can be an active device array substrate. The types of the first transparent substrate 110 and the second transparent substrate 120 are generally known to those skilled in the art according to actual needs, and thus embodiments of the present invention are not limited.

The first transparent substrate 110 has a first light transmitting region (not shown), wherein the light of the backlight can penetrate the first light transmitting region. For example, in the embodiment, the partial first transparent substrate 110 may be coated with a reflective layer (not shown) such that the region not coated with the reflective layer becomes the first transparent region, and The first transparent substrate 110 is separated from the first transparent region and the reflective region (not shown). The reflective area can be used to reflect external light incident from the external environment and to make the backlight Light cannot penetrate the reflective layer and exit into the outside environment.

Similarly, the second light transmissive substrate 120 has a second light transmissive region, wherein the light of the backlight can penetrate the second light transmissive region. The second light-transmissive region is located at a central position of the first transparent substrate 110, and the second transparent region 102 is located at a central position of the second transparent substrate 120, for example. The first light transmitting region 101 and the second light transmitting region 102 together define a display region 111. The display area 111, the shape, the size, and the set position of the display area 111 can be designed according to the pixel portion on the second transparent substrate 120 and the scan line driving circuit. For example, the display area 111 can correspond to the pixel on the second transparent substrate 120. And the scan line drive circuit. As shown in FIG. 1A to FIG. 1C , in the embodiment, the display area 111 is located at a central position of the first transparent substrate 110 .

Next, a polymer polymerization network structure 130 is formed on the first transparent substrate 110, wherein the polymer polymerization network structure 130 is located in the display region 111. The polymer polymerization network structure 130 is, for example, a polymer formed by polymerizing a polymerizable monomer, and the polymerizable monomer is, for example, a non-liquid crystalline monomer or a liquid crystal monomer. For example, the polymeric network structure 130 can be formed from a non-liquid crystalline monomer by photopolymerization or thermal polymerization. The non-liquid crystalline monomer is, for example, a monomer having a rod-like molecular structure, and the non-liquid crystal monomer contains, for example, an acryl fluorenyl group, a methacryl fluorenyl group, a vinyl group, an epoxy group, or a butylene group in a molecular structure. A monomer having a polymerizable group such as an acid ester group or a cinnamoyl group. And the rod-shaped molecular structure is, for example, biphenyl or biphenyl. At the end of the cyclohexyl group, there is a molecular structure of an alkyl group, a cyano group, or a fluorine.

The liquid crystal monomer is, for example, a liquid crystal monomer which exhibits a liquid crystal property by itself, which exhibits a liquid crystal property by a rod-like or plate-like skeleton such as a phenyl group or a cyclohexyl group. In detail, the polymerizable monomer may participate in the polymerization reaction together with the crosslinking agent to form the polymer polymerization network structure 130. Cross-linking The agent is, for example, a liquid crystalline or non-liquid crystalline compound, and the crosslinking agent has a reactive site that can be bonded to the polymerizable monomer in accordance with the polymerizable monomer used.

Then, the first sealant 150 is formed on the first transparent substrate 110. For example, the first sealant 150 may be formed on the surface of the first transparent substrate 110 provided with the polymer network structure 130 by coating. As shown in FIG. 1 , in the embodiment, the first sealant 150 is a square annular frame, and the first sealant 150 surrounds the display area 111 . The shape, size and arrangement position of the first sealant 150 are generally known to those skilled in the art, and are designed according to actual needs, for example, according to the shape, size and installation position of the display area 111, and thus the embodiment is not limited. It is worth mentioning that the polymer polymerization network structure 130 and the first sealant 150 have a gap D therebetween. In the present embodiment, the square ring-shaped first sealant 150 surrounds the display area 111 and has a substantially square annular gap D with the polymer-polymer network structure 130, and the gap D has a width of, for example, 1 micrometer to 100 micrometers. That is, the minimum distance between the polymeric network structure 130 located in the display area 111 and the first sealant 150 is substantially equal to the width of the gap D.

The first sealant 150 is formed, for example, of a thermosetting resin such as an epoxy resin or an acrylate (acrylic acid-urethane) resin. In other embodiments, the first sealant 150 is formed of, for example, a photocurable resin containing a butylene resin or an epoxy resin, and a curable resin for photothermal treatment, which is pre-cured by irradiation light, and then Heat treatment to completely cure the resin. For example, the viscosity of the first sealant 150 is, for example, 200 to 450 Pascal seconds (Pa sec) (25 ° C) to seal the liquid crystal 140 to the first transparent substrate 110 and the second transparent substrate 120. between. It should be noted that the adhesiveness of the first sealant 150 refers to the adhesiveness of the first sealant 150 before being disposed between the first transparent substrate 110 and the second transparent substrate 120. In addition, for example, you can use The viscosity of the first sealant 150 is measured by a rotary viscometer, a falling ball viscometer or a capillary viscometer. Additionally, in other embodiments, the first sealant 150 can also include a filler.

Then, the liquid crystal 140 is disposed on the first transparent substrate 110, and the liquid crystal 140 is infiltrated into the polymer polymerization network structure 130. In this embodiment, the liquid crystal 140 can be dropped onto the surface of the first transparent substrate 110 provided with the polymer polymerization network structure 130 by a liquid drop dropping process (ODF), and the liquid crystal 140 can be first. The frame glue 150 is surrounded. The liquid crystal molecules in the liquid crystal 140 are, for example, thermotropic liquid crystal molecules, low molecular liquid crystal molecules, polymer liquid crystal molecules, ferroelectric liquid crystal molecules or antiferroelectric liquid crystal molecules. In other embodiments, the liquid crystal molecules in the liquid crystal 140 may also be blue phase liquid crystal molecules.

It is worth mentioning that the liquid crystal molecules of the liquid crystal 140 in the display area 111 can penetrate into the polymer polymerization network structure 130, and the polymer polymerization network structure 130 is used to arrange the liquid crystal molecules of the liquid crystal 140 in the display area 111. Further, the liquid crystal molecules in the display region 111 may be partially and/or entirely dispersed in the network structure, that is, a part of the liquid crystal molecules may be partially and/or entirely aligned by the network structure, and in the liquid crystal molecules. Other parts can be located between the network structures. For example, the polymer polymerization network structure 130 can align the liquid crystal molecules of the liquid crystal 140 in the display region 111 between the twisted phase and the isotropic phase, and cause the liquid crystal 140 in the display region 111 to be in the twisted phase and the isotropic phase. A blue phase can appear between them.

Next, the second transparent substrate 120 is aligned on the first transparent substrate 110 provided with the polymer network structure 130, the liquid crystal 140 and the first sealant 150, and the first transparent substrate 110 and the second transparent substrate 110 are disposed. The transparent substrate 120 is adhered through the first sealant 150. Thereby, the liquid crystal 140 is sealed between a transparent substrate 110 and the second transparent substrate 120 to complete the liquid crystal display surface. Board 100. Moreover, the first sealant 150 is more thermally cured or photocured, so that the first transparent substrate 110 and the second transparent substrate 120 are closely adhered. Furthermore, the liquid crystal display panel 100 can be used as a liquid crystal display device by cutting and incorporating an element such as a flexible printed circuit board or an outer frame.

In addition, in this embodiment, the order of the above steps is designed by a person having ordinary knowledge in the technical field according to actual needs, and thus the embodiment is not limited. For example, in this embodiment, the second transparent substrate 120 may be firstly disposed on the first transparent substrate 110 provided with the polymer network structure 130, and then the liquid crystal 140 may be filled in the first transparent substrate. Between the substrate 110 and the second transparent substrate 120. For example, the liquid crystal 140 can be injected between the first transparent substrate 110 and the second transparent substrate 120 by a liquid crystal injection sealing device and sealed to seal the liquid crystal 140 to the first transparent substrate 110 and the second transparent substrate 120. And the first sealant 150, and the liquid crystal display panel 100 is completed.

In this embodiment, the liquid crystal display panel 100 further includes at least one conductive terminal 160 disposed on the first transparent substrate 110 and located at the periphery of the first sealant 150. The conductive terminal 160 is electrically connected to the scan driving line (not shown) and the data driving line (not shown) in the display area 111, and the external electrical signal can be input to the conductive terminal 160. For example, the plurality of conductive terminals 160 may be formed by a conductive pattern layer, and the scan driving lines and the data driving lines in the display area 111 may respectively extend outside the display area 111, and the plurality of conductive terminals 160 may respectively correspond to the The extension ends are electrically connected. It is to be noted that, as shown in FIG. 1 , since the polymer polymerization network structure 130 and the first sealant 150 have a gap D, and the conductive terminal 160 is located at the periphery of the first sealant 150, the conductive terminal 160 can be avoided. It is covered by the polymer aggregation network structure 130 in the display area 111. Yu Shishi In the embodiment, the minimum distance between the conductive terminals 160 and the polymer network structure 130 in the display region 111 is substantially equal to the width of the gap D, and the width of the gap D is, for example, 1 micrometer to 100 micrometers.

The above embodiment can be summarized as a method of manufacturing a liquid crystal display panel 100. Referring to FIG. 2, FIG. 2 is a flow chart showing a method of manufacturing the liquid crystal display panel 100 according to an embodiment of the present invention. In summary, the manufacturing method of the liquid crystal display panel 100 according to the embodiment of the present invention as shown in the second figure includes the following steps: providing the first transparent substrate 110, the first transparent substrate 110 having the display area 111 (step S1) Forming a polymer polymerization network structure 130 on the first transparent substrate 110, the polymer polymerization network structure 130 is located in the display area 111 (step S2); forming the first sealant 150 on the first transparent substrate 110 The first sealant 150 surrounds the display area 111 (step S3); the liquid crystal 140 is disposed on the first transparent substrate 110, and the liquid crystal 140 penetrates into the polymer polymerization network structure 130 (step S4); The first transparent substrate 110 and the second transparent substrate 120 are pasted through the first sealant 150 to seal the liquid crystal 140 to the first light-transmissive substrate 120. Between the transparent substrate 110 and the second transparent substrate 120, wherein the polymer network structure 130 is used to arrange the liquid crystal molecules of the liquid crystal 140 in the display region 111, and the polymer polymerization network structure 130 and the first sealant 150 have The gap D (step S5).

[Embodiment of Manufacturing Method of Liquid Crystal Display Panel 100]

Referring to FIG. 3A to FIG. 3C , FIG. 3A to FIG. 3C are schematic cross-sectional views showing a liquid crystal display panel 100 according to another embodiment of the present invention. The manufacturing method of the liquid crystal display panel 100 of the embodiment is substantially similar to the foregoing embodiment. In the following, only the differences between the present embodiment and the foregoing embodiments will be described in detail. The formation of a polymer polymerization network will be described in detail below. In the method of structure 130, first, as shown in FIG. 3A, an initial liquid crystal layer 170 is disposed on the first light-transmissive substrate 110, wherein the initial liquid crystal layer 170 includes an initial liquid crystal and a polymerizable monomer. The initial liquid crystal is a blue phase liquid crystal. For example, the initial liquid crystal is, for example, JC-1041XX liquid crystal manufactured by Chisso Co., Ltd. or 5CB (4-n-pentyl-4'-cyanobiphenyl) manufactured by Aldrich Co., Ltd., 4- Cyano-4'-pentylbiphenyl) liquid crystal material of liquid crystal. Or the initial liquid crystal is, for example, a liquid crystal comprising 5OCB (4-carbonitrile, 4'-pentyIoxy-1,1'-biphenyl), 8OCB (4-(n-octyloxy)-4'-cyanobiphenyl) liquid crystal or 5CT (4-carbonitrile- A liquid crystal material of 4"-pentyl-1,1',4',1"-terphenyl) liquid crystal. The polymerizable monomer can be used for subsequent polymerization, and the polymerization monomer is, for example, ethylhexyl acrylate (EHA), trimethylolpropane triacrylate (TMPTA), DA polymerization sheet manufactured by Wako Co., Ltd. RM257 polymerizable monomer manufactured by Merck, C12A polymerizable monomer manufactured by Wako, C12M polymerizable monomer manufactured by Wako, PLC polymerized monomer manufactured by Chisso, PLCM polymerized monomer manufactured by Chisso or a mixture thereof .

Specifically, a mixture containing a blue phase liquid crystal molecule, a polymerization monomer, a photopolymerization initiator, a reactive mesogen (RM), and a solvent may be coated in a wet coating (Wet-coating) manner. The light-transmissive substrate 110 is formed to form an initial liquid crystal layer 170. The above wet coating method can be performed by, for example, a spin coating process, a crescent coating process, a mesh coating process, or a knife coating process.

As shown in FIG. 3B, next, the initial liquid crystal layer 170 in the display region 111 is subjected to a polymer stabilization treatment to polymerize the polymerization monomer to form a polymer polymerization network structure 130. Specifically, the light can be illuminated on the display The initial liquid crystal layer 170 in the region 111 causes the polymerization monomer to undergo a polymerization reaction. That is, the polymer stabilization treatment can be performed by irradiating the initial liquid crystal layer 170 in the display region 111 with light of a specific wavelength. In the present embodiment, the initial liquid crystal layer 170 in the display region 111 can be irradiated with ultraviolet light by controlling the temperature of the initial liquid crystal layer 170 and exhibiting a blue phase in the initial liquid crystal layer 170 to perform polymer stabilization treatment. The initial liquid crystal layer 170 containing the initial liquid crystal and the polymerizable monomer reacts to produce a polymer stabilized blue phase liquid crystal.

Referring to FIG. 3B , a mask can be placed over the first transparent substrate 110 , and an ultraviolet light exposure process is performed through the mask, wherein the opening of the mask exposes only the display region 111 of the first transparent substrate 110 . Thereby, the ultraviolet light is irradiated to the initial liquid crystal layer 170 in the display region 111, and the polymerization monomer of the initial liquid crystal layer 170 in the display region 111 can be polymerized to form the initial liquid crystal layer 170 having the network structure in the display region 111. in. It is worth mentioning that, in this embodiment, the exposure process can be performed in a nitrogen gas atmosphere, for example, in a cavity filled with nitrogen gas. In addition, the above exposure process can be carried out while controlling the ambient temperature to facilitate polymerization of the monomers.

Finally, as shown in FIG. 3C, the initial liquid crystal is separated from the first transparent substrate 110, and the step of forming the polymer polymerization network structure 130 in the display region 111 of the first transparent substrate 110 is completed. In this embodiment, the first transparent substrate 110 provided with the initial liquid crystal layer 170 and irradiated with light may be immersed in a solvent to dissolve the initial liquid crystal in the solvent, wherein the polymerized network structure 130 is insoluble. In the solvent. Next, the solvent is removed to separate the initial liquid crystal from the first light-transmitting substrate 110. The method of removing the solvent may evaporate the solvent by, for example, heating the first transparent substrate 110, whereby the initial liquid crystal dissolved in the solvent may be separated from the first transparent substrate 110. Figure The rest of the process details in FIG. 3A to FIG. 3C are as described in FIG. 1. Those skilled in the art should be able to easily infer the implementation manner thereof, and no further details are provided herein.

[Another Embodiment of Manufacturing Method of Liquid Crystal Display Panel 100]

4A to 4F, FIG. 4A to FIG. 4E are schematic cross-sectional views showing a liquid crystal display panel 100 according to another embodiment of the present invention, and FIG. 4F is a plan view showing the liquid crystal display panel 100 of FIG. 4C during the manufacturing process. schematic diagram. The manufacturing method of the liquid crystal display panel 100 of this embodiment is substantially similar to the foregoing embodiment, and only the differences between the present embodiment and the foregoing embodiments will be described in detail below.

As shown in FIG. 4A, the manufacturing method of the liquid crystal display panel 100 of the present embodiment further includes the step of providing the second mask 190 after the step of providing the first transparent substrate 110 and before the step of disposing the initial liquid crystal layer 170. On a transparent substrate 110, the second sealant 190 surrounds the display area 111. As shown in FIG. 4F, in the embodiment, the second sealant 190 is a square annular frame and is located around the display area 111. Further, the second sealant 190 is located at the periphery of the conductive terminal 160. The material forming the second sealant 190 can be similar to the material forming the first sealant 150, and is generally designed by those skilled in the art according to actual needs, and thus the embodiment is not limited.

Furthermore, after the step of disposing the initial liquid crystal layer 170, the method for manufacturing the liquid crystal display panel 100 of the present embodiment further includes providing the third transparent substrate 180, wherein the third transparent substrate 180 is opposite to the first transparent substrate 110. The first transparent substrate 110 and the third transparent substrate 180 are adhered through the second sealant 190 to seal the initial liquid crystal layer 170 between the first transparent substrate 110 and the third transparent substrate 180. As the third light-transmitting substrate 180, an alkali-free glass substrate such as aluminosilicate glass, aluminoborosilicate glass or bismuth borate glass can be used, and for example, a quartz substrate, a ceramic substrate or a plastic substrate can be used.

Then, as shown in FIG. 4B, the ultraviolet light is irradiated to the initial liquid crystal layer 170 in the display region 111, and the polymerization monomer of the initial liquid crystal layer 170 in the display region 111 can be polymerized to form a network structure in the display region 111. In the initial liquid crystal layer 170. Next, referring to FIG. 4B and FIG. 4F together, as shown, the first transparent substrate 110 and the third transparent substrate 180 are cut along the cutting line to separate the second sealant 190 from the initial liquid crystal layer 170. The cutting line is located between the display area 111 and the second sealant 190. Further, the cutting line is located at the periphery of the conductive terminal 160. In this embodiment, the second frame seal 190 can be separated by cutting by a blade sawing process or a laser cutting process.

Then, as shown in FIG. 4D, the third transparent substrate 180 is separated from the initial liquid crystal layer 170 to facilitate the subsequent separation of the initial liquid crystal from the first transparent substrate 110. It is worth mentioning that the third transparent substrate 180 may be provided with a release layer 181 with respect to the surface of the first transparent substrate 110. The release layer 181 is used to reduce the contact between the polymer polymerization network structure 130 and the third transparent substrate 180. When the third transparent substrate 180 is separated from the initial liquid crystal layer 170, the separation of the polymer polymerization network structure 130 is avoided. The first transparent substrate 110 is used. Specifically, in the present embodiment, the adhesion of the release layer 181 to the third transparent substrate 180 is greater than the adhesion of the release layer 181 to the polymeric network structure 130. Therefore, when the third transparent substrate 180 is separated from the initial liquid crystal layer 170, the release layer 181 may be attached to the third transparent substrate 180 to be separated from the initial liquid crystal layer 170. The release layer 181 may be formed of a single layer or a multilayer film, and may be disposed on the opposite surface of the third transparent substrate 180 by plating, attaching, or electrostatic attraction. The remaining process details in FIG. 4A to FIG. 4F are as described in FIG. 1. Those skilled in the art should be able to easily infer the implementation manner thereof, and no further details are provided herein.

[Another Embodiment of Manufacturing Method of Liquid Crystal Display Panel 100]

Referring to FIG. 5A to FIG. 5F, FIG. 5A to FIG. 5F are schematic cross-sectional views showing a liquid crystal display panel 100 according to another embodiment of the present invention during a manufacturing process. The manufacturing method of the liquid crystal display panel 100 of this embodiment is substantially similar to the foregoing embodiment, and only the differences between the present embodiment and the foregoing embodiments will be described in detail below.

In the present embodiment, the step of separating the third transparent substrate 180 from the initial liquid crystal layer 170 includes dissolving the release layer 181'. The release layer 181' is, for example, a water-soluble film, and the first light-transmissive substrate 110 and the third light-transmissive substrate 180 may be first immersed in an aqueous solution to dissolve the release layer 181'. Since the polymer polymerization network structure 130 is not dissolved in the aqueous solution, a third distance between the third transparent substrate 180 and the polymer polymerization network structure 130 is formed to reduce the distance between the third transparent substrate 180 and the polymer network structure 130. contact. Therefore, when the third transparent substrate 180 is separated from the initial liquid crystal layer 170, the separation of the polymer polymerization network structure 130 from the first transparent substrate 110 can be avoided.

In addition, please refer to FIG. 6A to FIG. 6B. FIG. 6A to FIG. 6B are schematic cross-sectional views showing the liquid crystal display panel 100 according to another embodiment of the present invention in a manufacturing process. The water soluble release layer 181' can extend to the second sealant 190. After the first transparent substrate 110 and the third transparent substrate 180 are immersed in the aqueous solution to remove the release layer 181', a gap is formed between the third transparent substrate 180 and the first sealant 150. Thereby, the third transparent substrate 180 can be separated from the first sealant 150 when the third transparent substrate 180 is separated from the initial liquid crystal layer 170. The rest of the process details in FIG. 5A to FIG. 5F are as described in FIG. 1. Those skilled in the art should readily infer the implementation manner, and no further details are provided herein.

In other embodiments, in the step of forming the polymer polymerization network structure 130 on the first transparent substrate 110, the method may include forming a high score first. The sub-polymer network structure 130 is further disposed on the first transparent substrate 110. In detail, the polymer polymerization network structure 130 may be first formed on a temporary substrate, and the temporary substrate is, for example, a release plate. For example, an initial liquid crystal layer 170 may be disposed on the temporary substrate, and the initial liquid crystal layer 170 is subjected to a polymer stabilization treatment to polymerize the polymerization monomer to form a polymer polymerization network structure 130 on the temporary On the substrate. Then, the polymer polymerization network structure 130 can be released from the temporary substrate, and the polymer polymerization network structure 130 is attached to the first transparent substrate 110.

In other embodiments, the polymer network structure 130 may be formed between two temporary substrates, and the two temporary substrates are, for example, release plates. Specifically, an initial liquid crystal layer 170 may be disposed between the two temporary substrates, and the initial liquid crystal layer 170 is subjected to a polymer stabilization treatment to form a polymer polymerization network structure 130 between the two temporary substrates. . Then, the polymer polymerization network structure 130 can be formed on the two temporary substrates, and the polymer polymerization network structure 130 is attached to the first transparent substrate 110. It is worth mentioning that the temporary substrate or the polymer polymerization network structure 130 may be in the form of a soft film and can be used for winding and storage.

In addition, in other embodiments, the laser polymerization network structure 130 may also be formed by laser address processing. Specifically, an initial template may be provided first, for example, formed of a polymeric material. However, the material forming the initial template is one of ordinary skill in the art and can be designed according to actual needs, and thus the embodiment of the present invention is not limited. Then, the initial template may be laser-engraved according to a desired three-dimensional pattern to pattern the initial template, thereby forming a polymer-polymer network structure 130. The initial template or polymer network knot The structure 130 can be in the form of a soft film and can be used for winding and storage. Furthermore, the polymer polymerization network structure 130 can be attached to the first transparent substrate 110 to form a polymer polymerization network structure 130 on the first transparent substrate 110.

In addition, in other embodiments, it may be formed by gravure printing, offset printing, silk screen printing, ink-jet printing or other printing processes. Polymeric network structure 130. For example, the material for forming the polymer polymerization network structure 130 may be stacked on the first transparent substrate 110 by an inkjet printing process, and the stacking step may be performed according to a desired three-dimensional pattern to form a polymer. The polymeric network structure 130 is on the first transparent substrate 110.

In other embodiments, the material for forming the polymer polymerization network structure 130 may be stacked on the temporary substrate by an inkjet printing process to form a polymer polymerization network structure 130 on the temporary substrate. The substrate is, for example, a release plate. Then, the polymer polymerization network structure 130 can be released from the temporary substrate, and the polymer polymerization network structure 130 is attached to the first transparent substrate 110. In the embodiment, the temporary substrate or the polymer polymerization network structure 130 formed with the polymer polymerization network structure 130 may be in the form of a soft film and can be used for winding and storage.

In addition, in other embodiments, the polymeric polymer network structure 130 may also be formed by interference lithography. In detail, a positive photosensitive polymer network structure 130 material may be coated on the first light-transmissive substrate 110 to form a photoresist film having a predetermined thickness. Then, the first transparent substrate 110 provided with the photoresist film is subjected to two-beam interference exposure, for example, an interference beam is generated by two beams from the same light source, and the interference beam is irradiated to the photoresist film. First transparent substrate 110 on. Since the light intensity of the interference beam irradiated on the first transparent substrate 110 is different, and the light intensity distribution of the interference beam on the first transparent substrate 110 is required by those skilled in the art. The three-dimensional pattern is designed, whereby the photoresist film can be patterned to form a polymer polymerization network structure 130 on the first light-transmissive substrate 110.

In addition, in other embodiments, the nano-polymerization network structure 130 may also be formed by nanoimprinting. Specifically, the transfer template having a three-dimensional pattern may be formed by a laser writing process, a printing process, or an interference method as described above, and the transfer template may be reused. Then, the imprint resist is patterned through the transfer template, for example, a liquid embossed material may be disposed on the first transparent substrate 110, and then the transfer template is appropriately The pressure is imprinted on the embossed object. The embossed material comprises, for example, a polymerizable monomer, and can be polymerized by irradiation of light in a transfer process to form a polymer polymerization network structure 130 on the first transparent substrate 110. .

[Possible Effect of Embodiments of Assembly Method of Circuit Board Assembly System]

In summary, the embodiment of the present invention provides a liquid crystal display panel 100 and a method for fabricating the same, which can pass through the polymer polymerization network structure 130 in the display area 111 to arrange liquid crystal molecules of the liquid crystal 140 in the display area 111 to display the display area 111. The liquid crystal molecules of the inner liquid crystal 140 exhibit a blue phase. The liquid crystal display panel 100 and the manufacturing method thereof can pass through the polymer polymerization network structure 130 formed on the first transparent substrate 110, and can break through the limitation of the liquid crystal material, and can be displayed in a mass production process of the display panel by using a general liquid crystal material. The characteristics of the blue phase. Furthermore, the liquid crystal display panel 100 and the manufacturing method thereof can prevent the polymer polymerization network structure 130 in the display region 111 from blocking the electricity of the conductive terminal 160 by the gap D between the polymer polymerization network structure 130 and the first sealant 150. Sexual connection.

The above is only an embodiment of the present invention, and is not intended to limit the scope of the invention. It is still within the scope of patent protection of the present invention to make any substitutions and modifications of the modifications made by those skilled in the art without departing from the spirit and scope of the invention.

100‧‧‧LCD panel

110‧‧‧First transparent substrate

111‧‧‧ display area

120‧‧‧Second transparent substrate

130‧‧‧ polymer aggregation network structure

140‧‧‧LCD

150‧‧‧ first frame glue

160‧‧‧Electrical terminals

170‧‧‧Initial liquid crystal layer

180‧‧‧ Third transparent substrate

181,181'‧‧‧ release layer

190‧‧‧Second frame glue

C‧‧‧ cutting line

D‧‧‧ gap

M‧‧‧ mask

S1~S5‧‧‧Steps

1 is a schematic plan view of a liquid crystal display panel according to an embodiment of the present invention.

1A to 1C are schematic cross-sectional views showing the liquid crystal display panel of Fig. 1 in a manufacturing process.

2 is a flow chart showing a method of manufacturing a liquid crystal display panel according to an embodiment of the present invention.

3A to 3C are schematic cross-sectional views showing a liquid crystal display panel according to another embodiment of the present invention in a manufacturing process.

4A to 4E are schematic cross-sectional views showing a liquid crystal display panel according to another embodiment of the present invention in a manufacturing process.

4F is a top plan view showing the liquid crystal display panel of FIG. 4C during the manufacturing process.

5A to 5F are schematic cross-sectional views showing a liquid crystal display panel according to another embodiment of the present invention in a manufacturing process.

6A to 6B are schematic cross-sectional views showing a liquid crystal display panel according to another embodiment of the present invention in a manufacturing process.

100‧‧‧LCD panel

110‧‧‧First transparent substrate

111‧‧‧ display area

120‧‧‧Second transparent substrate

130‧‧‧ polymer aggregation network structure

140‧‧‧LCD

150‧‧‧ first frame glue

Claims (6)

A method for manufacturing a liquid crystal display panel, comprising: providing a first transparent substrate, wherein the first transparent substrate has a display area; and a second sealant is disposed on the first transparent substrate, wherein the second sealant Surrounding the display area; forming a polymer polymerization network structure on the first transparent substrate, the polymer polymerization network structure is located in the display area, wherein the step of forming the polymer polymerization network structure comprises: setting an initial liquid crystal layer On the first transparent substrate, the initial liquid crystal layer comprises an initial liquid crystal and a polymerizable monomer, wherein the initial liquid crystal is a blue phase liquid crystal; and a third transparent substrate is provided, the third transparent substrate is opposite to the first transparent substrate a transparent substrate, the first transparent substrate and the third transparent substrate are adhered through the second sealant to seal the initial liquid crystal between the first transparent substrate and the third transparent substrate The third transparent substrate is provided with a release layer relative to the surface of the first transparent substrate; the initial liquid crystal layer in the display region is subjected to a polymer stabilization treatment to polymerize the polymerization monomer; And separating the initial liquid crystal from the first transparent substrate; forming a first sealant on the first transparent substrate, the first sealant surrounding the display area; and providing a liquid crystal on the first transparent substrate The liquid crystal is infiltrated into the polymer polymerization network structure; and a second transparent substrate is provided. The second transparent substrate is transparent to the first transparent substrate and the second transparent substrate. The first The sealant is adhered to seal the liquid crystal between the first transparent substrate and the second transparent substrate; wherein the polymer network structure is used to arrange liquid crystal molecules of the liquid crystal in the display region, and The polymer polymerization network structure has a gap between the first sealant and the first sealant. The method for fabricating a liquid crystal display panel according to claim 1, wherein the step of performing a polymer stabilization treatment on the initial liquid crystal layer in the display region comprises irradiating a light to the initial liquid crystal layer in the display region. in. The method of manufacturing a liquid crystal display panel according to claim 1, wherein after the step of performing a polymer stabilization treatment on the initial liquid crystal layer in the display region and separating the initial liquid crystal from the first through Before the step of the optical substrate, the method further includes: cutting the first transparent substrate and the third transparent substrate along a cutting line to separate the second sealant from the initial liquid crystal layer, wherein the cutting line is located in the display area And separating the third transparent substrate from the initial liquid crystal layer; The method for manufacturing a liquid crystal display panel according to claim 3, wherein the adhesion of the release layer to the third transparent substrate is greater than the adhesion of the release layer to the polymer polymerization network structure. The method of manufacturing a liquid crystal display panel according to claim 3, wherein the step of separating the third transparent substrate from the initial liquid crystal layer comprises dissolving the release layer. The method for manufacturing a liquid crystal display panel according to claim 1, wherein the step of separating the initial liquid crystal from the first transparent substrate comprises: A solvent is added to the initial liquid crystal layer to dissolve the initial liquid crystal in the solvent; and the solvent is removed.