TWI574075B - Liquid crystal display panel and manufacturing method thereof - 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.

As liquid crystal displays continue to develop toward large-sized display specifications, in order to overcome the viewing angle problem under large-size display, the wide viewing angle technology of liquid crystal display panels must also continue to advance and break through. At present, a multi-domain vertical alignment (MVA) liquid crystal display panel and a polymer stabilized alignment (PSA) liquid crystal display panel are currently common wide viewing angle technologies, wherein a polymer stabilized alignment liquid crystal display panel By forming an alignment manner of various alignment fields, the problem of poor display contrast of the multi-domain vertical alignment type liquid crystal display panel is improved. However, according to the current technology, the pretilt angle of the liquid crystal in the polymer stable alignment liquid crystal display panel cannot be directly measured, so in order to confirm the optimum curing conditions, a series of complicated experiments and data analysis are still required, which is not time-efficient and Economic benefits.

The present invention provides a liquid crystal display panel and a method of fabricating the same to solve the problem that the pretilt angle of the liquid crystal cannot be directly measured.

The liquid crystal display panel of the present invention comprises a first substrate, a pixel array, a first pseudo pixel array, a second substrate, a light shielding layer, a sealant, and a liquid crystal layer. The first substrate has a display area, a peripheral area, and a sealant area between the display area and the peripheral area. The pixel array is arranged in the display area. The first pseudo-pixel array is disposed between the sealant region and the display region, wherein the first pseudo-pixel array has a plurality of first pseudo-pixel structures, and each of the first pseudo-pixel structures includes a first alignment region and a second The alignment area, and the alignment direction of the first alignment area is different from the alignment direction of the second alignment area, and the first alignment area is located at one side of the second alignment area. The second substrate is disposed opposite to the first substrate. The light shielding layer is disposed between the first substrate and the second substrate, wherein the light shielding layer has a plurality of first openings, the first openings respectively exposing the first alignment regions in the first pseudo-pixel structure, and the light shielding layer shields the first alignment The second alignment area in the pixel structure. The sealant is disposed between the first substrate and the second substrate and located in the sealant region. The liquid crystal layer is disposed between the first substrate, the second substrate, and the sealant.

The method of manufacturing a liquid crystal display panel of the present invention includes the following steps. First, a liquid crystal display panel as described above is provided, wherein the liquid crystal layer includes liquid crystal molecules and a polymerizable monomer. Next, the liquid crystal display panel is subjected to a polymer alignment process to polymerize the polymerizable monomer to form at least one polymer layer, wherein the polymer layer is disposed between the first substrate and the second substrate, and the polymer layer contacts the liquid crystal layer So that the liquid crystal molecules exhibit different pretilt angles in the first alignment region and in the second alignment region. Thereafter, a first optical measurement step is performed to measure the pretilt angle of the liquid crystal molecules in the first alignment region through the first opening.

In the liquid crystal display device of the present invention, a first pseudo pixel array including a plurality of first pseudo-pixel structures is disposed between the seal region of the substrate and the display region, and the first opening is included in the light shielding layer. Each of the first pseudo-pixel structures includes a first alignment region and a second alignment region having different alignment directions, and the first opening exposes the first alignment region, and the light shielding layer shields the second alignment region. In this way, after the polymer alignment process is performed on the liquid crystal display panel, the pretilt angle of the liquid crystal molecules in the first alignment region can be measured by performing the optical measurement step.

The above described features and advantages of the present invention will be more apparent from the following description.

1 is a flow chart showing the manufacture of a liquid crystal display device in accordance with an embodiment of the present invention. 2 is a cross-sectional view showing a liquid crystal display device in accordance with an embodiment of the present invention. 3 is a top plan view of the liquid crystal display device of FIG. 2. 4 is a top plan view of the light shielding layer of FIG. 2. FIG. 5 is a top plan view of the pseudo pixel structure and the light shielding layer of FIG. 2. FIG. 6 is a schematic cross-sectional view showing a polymer alignment process of the liquid crystal display device of FIG. 2. Here, the sectional position of Fig. 1 corresponds to the position of the sectional line I-I' of Fig. 2 . Hereinafter, a method of manufacturing the liquid crystal display device of the present invention will be described in detail with reference to FIGS. 1 to 6.

Referring to FIG. 1 , FIG. 2 and FIG. 3 simultaneously, step S10 is performed to provide the liquid crystal display panel 100. The liquid crystal display panel 100 includes a substrate 110, a plurality of scan lines SL, a plurality of data lines DL, a pixel array 112, a pseudo pixel array 114, an alignment layer 116, a substrate 120, a light shielding layer 122, and a plurality of color filter patterns 124. Counter electrode 126, alignment layer 128, sealant 130, liquid crystal layer 140, data line drive circuit DR1, scanning line drive circuit DR2, and voltage input circuit PA. In the present embodiment, the liquid crystal display panel 100 belongs to a polymer stabilized alignment liquid crystal display panel.

The substrate 110 has a display area A, a peripheral area B, and a sealant area C between the display area A and the peripheral area B. In detail, referring to FIG. 3, the peripheral area B is surrounded by the display area A, and the glue area C is located between the display area A and the peripheral area B and also surrounds the display area A. The substrate 120 is disposed opposite to the substrate 110. The material of the substrate 110 and the substrate 120 may be glass, quartz or an organic polymer.

Referring to FIG. 3, the extending direction of the scanning line SL is not parallel to the extending direction of the data line DL, for example, the extending direction of the scanning line SL is perpendicular to the extending direction of the data line DL. Based on the conductivity considerations, the scan line SL and the data line DL are generally made of a metal material. However, the invention is not limited thereto. According to other embodiments, other conductive materials such as an alloy, a nitride of a metal material, an oxide of a metal material, an oxynitride of a metal material, or a metal material and other conductive materials may also be used for the scan line SL and the data line DL. Stack layers.

Referring to FIG. 2 and FIG. 3 simultaneously, the pixel array 112 is disposed in the display area A. In detail, the pixel array 112 includes a plurality of pixel structures P, and each pixel structure P includes an active element T and a pixel electrode PE. The active device T may be a bottom gate type thin film transistor or a top gate type thin film transistor. The active device T is electrically connected to a corresponding one of the scan lines SL and a corresponding one of the data lines DL. The pixel electrode PE is electrically connected to the active device T, and the material of the pixel electrode PE includes a transparent conductive material, such as Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), Cadmium tin oxide, aluminum zinc oxide, aluminum tin oxide or antimony oxide. Further, in the present embodiment, the pixel structure P may be any pixel structure suitable for use in a polymer-stabilized alignment liquid crystal display panel known to those skilled in the art.

Although 21 pixel structures P are illustrated in FIG. 3, the present invention is not limited thereto. In other embodiments, the embodiment of the present embodiment can also adjust the number of pixel structures in the pixel array according to the design requirements.

Referring to FIG. 2 and FIG. 3 simultaneously, the pseudo pixel array 114 is disposed between the sealant area C and the display area A. In the present embodiment, the area occupied by the pseudo-pixel array 114 is 2 to 6 mm ² , preferably 4 mm ² . In detail, the pseudo pixel array 114 has a plurality of pseudo pixel structures DP, and each pseudo pixel structure DP includes a pseudo active element DT and a pseudo pixel electrode DPE. The pseudo active device DT may be a bottom gate type thin film transistor or a top gate type thin film transistor. The pseudo active device DT is electrically connected to a corresponding one of the scan lines SL and the corresponding one of the data lines DL. The pseudo-electrode DPE is electrically connected to the pseudo-active element DT, and the material of the pseudo-electrode DPE includes a transparent conductive material, such as indium tin oxide, indium zinc oxide, cadmium tin oxide, aluminum zinc oxide, aluminum. Tin oxide or antimony oxide. Further, in the present embodiment, the pseudo active element DT has the same configuration as the active element T, and the pseudo pixel electrode DPE has the same configuration as the pixel electrode PE. In other words, the pseudo-pixel structure DP can have any configuration known in the art that is suitable for use in a polymer stabilized alignment liquid crystal display panel. Hereinafter, the pseudo pixel structure DP will be described in detail with reference to FIG. Further, although not shown in detail, in the present embodiment, the pixel structure P also has a configuration as shown in FIG. However, the pixel structure P and the pseudo-pixel structure DP are not limited to those depicted in FIG. 5. As described above, the pixel structure P and the pseudo-pixel structure DP may be well known to those of ordinary skill in the art. Any configuration suitable for a pixel structure in a polymer stabilized alignment liquid crystal display panel.

The pseudo-electrode DPE is divided into four alignment regions 150a to 150d. Specifically, in the alignment regions 150a to 150d, the pseudo-pixel electrodes DPE each have a pair of alignment slits S1 to S4 having the same alignment direction. From another point of view, the alignment directions of the alignment slits S1 to S4 are different from each other. That is, in the present embodiment, the alignment direction of the alignment region 150a, the alignment direction of the alignment region 150b, the alignment direction of the alignment region 150c, and the alignment direction of the alignment region 150d are all different.

In addition, although three pseudo-pixel structures DP are illustrated in FIG. 3, the present invention is not limited thereto. In other embodiments, the embodiment of the present embodiment can also adjust the number of pseudo-pixel structures in the pseudo pixel array according to their design requirements.

Referring to FIG. 2, FIG. 3 and FIG. 4 simultaneously, the light shielding layer 122 is disposed on the substrate 120. Specifically, the light shielding layer 122 includes an outer frame light shielding portion 123 and a lattice light shielding portion 125, wherein the outer frame light shielding portion 123 spatially overlaps the region other than the display region A of the substrate 110, and the lattice light shielding portion 125 and The scan line SL and the data line DL overlap. In more detail, referring to FIG. 3, FIG. 4 and FIG. 5 simultaneously, the outer frame light shielding portion 123 of the light shielding layer 122 has a plurality of openings O, wherein the openings O respectively expose the alignment regions 150a in the pseudo pixel structure DP. Therefore, in the present embodiment, only the alignment region 150a is exposed by the opening O in each pseudo pixel structure DP, and the alignment regions 150b to 150d are all covered by the outer frame light shielding portion 123 of the light shielding layer 122. Shaded.

Further, the material of the light shielding layer 122 is, for example, a black resin or a light-shielding metal, and is preferably made of a material having low reflection. In the present embodiment, the material of the light shielding layer 122 is a black resin having insulating properties. However, the invention is not limited thereto. If the material of the light shielding layer 122 is a light shielding metal, the light shielding layer 122 and the opposite electrode 126 further include an insulating layer. Further, in the present embodiment, the light shielding layer 122 is disposed on the substrate 120. However, the present invention is not limited thereto, and in other embodiments, the light shielding layer 122 may be disposed on the substrate 110.

The plurality of color filter patterns 124 are disposed on the substrate 120 and disposed corresponding to the pixel structure P. The color filter pattern 124 includes a red filter pattern, a green filter pattern, and a blue filter pattern. Further, in the present embodiment, by providing the color filter pattern 124, the liquid crystal display panel 100 can exhibit an colorful display effect. However, the invention is not limited thereto. In other embodiments, the present invention may also select not to provide the color filter pattern 124 according to actual conditions, or the color filter pattern 124 is disposed on the substrate 110.

The counter electrode 126 is disposed on the substrate 120. The material of the counter electrode 126 includes a transparent conductive material such as indium tin oxide, indium zinc oxide, cadmium tin oxide, aluminum zinc oxide, aluminum tin oxide or cerium oxide.

The alignment layer 116 and the alignment layer 128 are disposed on the substrate 110 and the substrate 120, respectively. Alignment layer 116 and alignment layer 128, respectively, can be any alignment layer suitable for use in a polymer stabilized alignment liquid crystal display panel, as is well known in the art. Further, in the present embodiment, the alignment layer 116 and the alignment layer 128 are disposed on the transmission substrate 110 and the substrate 120, respectively, so that the alignment effect of the liquid crystal display panel 100 is further improved. However, the invention is not limited thereto. In other embodiments, the present invention may also choose not to provide an alignment layer according to actual conditions, or to provide an alignment layer only on one of the substrate 110 and the substrate 120.

Referring to FIG. 2 and FIG. 3 simultaneously, the sealant 130 is disposed between the substrate 110 and the substrate 120 and located in the sealant region C. In detail, the substrate 110 and the substrate 120 are bonded through the sealant 130. In the present embodiment, the sealant 130 is, for example, a conductive sealant, which is composed of an insulating rubber material and conductive particles such as gold particles, wherein the insulating rubber material is composed of, for example, an ultraviolet light-curing adhesive.

The liquid crystal layer 140 is disposed between the substrate 110, the substrate 120, and the sealant 130. In detail, the liquid crystal layer 140 includes liquid crystal molecules 142 and a polymerizable monomer 144, wherein the polymerizable monomer 144 is, for example, a photopolymerizable monomer or a thermally polymerizable monomer. In addition, as described above, since the pixel structure P and the pseudo-pixel structure DP respectively include the pixel electrodes PE and the pseudo-pixel electrodes DPE having the four sets of alignment slits S1 to S4 whose alignment directions are different from each other, when the liquid crystal molecules When the 142 is driven, the liquid crystal molecules 142 located in the region where the pixel structure P and the pseudo pixel structure DP are located are substantially aligned along the alignment direction of the alignment slits S1 to S4. That is to say, in the present embodiment, the arrangement direction of the liquid crystal molecules 142 located in the region where the pixel structure P and the pseudo pixel structure DP are located may exhibit four different directions, thereby achieving a display effect of a wide viewing angle.

The data line driving circuit DR1 is located in the peripheral area B, and is electrically connected to the data line DL, the pixel array 112, and the pseudo pixel array 114. In detail, the data line drive circuit DR1 provides the data line signals corresponding to the pixel structure P and the pseudo pixel structure DP through the data line DL. That is to say, in the present embodiment, the pixel structure P and the pseudo pixel structure DP can receive the same data line signal. In addition, the data line driving circuit DR1 may be selectively pressed or integrated into the peripheral area B.

The scan line driving circuit DR2 is located in the peripheral area B, and is electrically connected to the scan line SL, the pixel array 112, and the pseudo pixel array 114. In detail, the scanning line driving circuit DR2 supplies the scanning line signals corresponding to the pixel structure P and the pseudo pixel structure DP through the scanning lines SL. That is to say, in the present embodiment, the pixel structure P and the pseudo pixel structure DP can receive the same scan line signal. In addition, the scan line driver circuit DR2 may be selectively pressed or integrated into the peripheral area B.

The voltage input circuit PA is located in the peripheral area B and is electrically connected to the data line driving circuit DR1 and the scanning line driving circuit DR2. In this way, after the voltage signal is input to the voltage input circuit PA, the voltage signal can be transmitted to the data line DL through the data line driving circuit DR1 and to the scan line SL through the scan line driving circuit DR2.

Next, referring to FIG. 1 and FIG. 6 simultaneously, step S20 is performed to perform a polymer alignment process on the liquid crystal display panel 100. Hereinafter, the operation method of the polymer alignment process will be described in detail with reference to FIGS. 3, 5, and 6.

First, the driving signal Vdc is supplied to the pixel array 112 and the pseudo pixel array 114 through the voltage input circuit PA, the data line driving circuit DR1, and the scanning line driving circuit DR2. Specifically, in the present embodiment, after the DC voltage is applied to the voltage input circuit PA, the DC voltage is transmitted to the data line DL and the scan line SL through the data line drive circuit DR1 and the scan line drive circuit DR2. This enables the pixel array 112 and the pseudo pixel array 114 to receive the same drive signal Vdc. From another point of view, in the embodiment, the driving signal Vdc includes a data line signal and a scanning line signal. However, the invention is not limited thereto. In other embodiments, the driving signal Vdc may further include a common voltage signal.

More specifically, while applying a DC voltage to the voltage input circuit PA, a curing voltage signal Vs is applied to the counter electrode 126, wherein the curing voltage signal Vs is, for example, a stepped peak signal. At this time, in the liquid crystal display panel 100, the liquid crystal molecules 142 located between the counter electrode 126 and the pixel array 112 and the pseudo pixel array 114 are driven by the voltage signals (ie, the driving signal Vdc and the curing voltage signal Vs). Pretilt occurs.

In addition, as described above, in the liquid crystal display panel 100, the alignment layer 116 and the alignment layer 128 are respectively disposed on the substrate 110 and the substrate 120, and the pixel structure P and the pseudo pixel structure DP respectively include an alignment direction. The alignment regions 150b to 150d are different from each other, whereby when the liquid crystal molecules 142 are driven by the voltage signals (ie, the driving signal Vdc and the curing voltage signal Vs), the liquid crystal molecules 142 located in the alignment regions 150b to 150d not only Arranged along different alignment directions also exhibit different pretilt angles.

Next, after the liquid crystal molecules 142 are stably aligned, the liquid crystal display panel 100 is irradiated with ultraviolet light 180 (ie, an illumination process is performed) to polymerize the polymerizable monomers 144 in the liquid crystal layer 140 to form polymer layers 160 and 162, thereby completing Polymer alignment process. Specifically, the polymer layers 160 and 162 are disposed on the substrate 110 and the substrate 120, respectively, and are in contact with the liquid crystal layer 140. In addition, the illuminating process is performed while continuously applying a DC voltage to the voltage input circuit PA and applying a curing voltage signal Vs to the counter electrode 126, thereby allowing the polymerizable monomer 144 to be polymerized. The liquid crystal molecules 142 are in a pretilt state. In this way, the polymer layers 160, 162 formed by the polymerizable monomer 144 can stably stabilize the pre-tilted liquid crystal molecules 142, thereby causing the application of the DC voltage to the voltage input circuit PA and stopping at the pair. After the curing voltage signal Vs is applied to the electrode 126, the liquid crystal molecules 142 can maintain the pretilt state. Further, in the present embodiment, the polymerizable monomer 144 is polymerized by a photo-irradiation process, but the present invention is not limited thereto. In other embodiments, the polymerizable monomer 144 may also be polymerized by a heating process.

After the completion of the polymer alignment process, the irradiation of the ultraviolet light 180 is stopped and the application of the DC voltage to the voltage input circuit PA and the application of the solidification voltage signal Vs to the counter electrode 126 are stopped.

Thereafter, referring to FIG. 1, FIG. 4 and FIG. 5, step S30 is performed, and the liquid crystal display panel 100 is subjected to an optical measurement step to measure the pretilt angle of the liquid crystal molecules 142 in the alignment region 150a through the opening O. In detail, the optical measurement step of the liquid crystal display panel 100 includes the following steps. First, a light beam is irradiated onto the pseudo-pixel array 114 by using an optical machine, wherein the alignment area 150a in the pseudo-pixel structure DP of the pseudo-pixel array 114 is exposed due to the opening O in the outer frame light-shielding portion 123. Therefore, the light beam will penetrate through the opening O and illuminate the alignment region 150a in the pseudo-pixel structure DP. In more detail, as described above, since only the alignment region 150a of each pseudo pixel structure DP is exposed by the opening O, the light beam only penetrates the opening O in the outer frame light shielding portion 123. The alignment regions 150a having the same alignment direction are irradiated into the pseudo pixel structure DP. Next, the optical characteristics of the light beam penetrating through the opening O are measured by using the optical machine to measure the pretilt angle of the liquid crystal molecules 142 in the alignment region 150a exposed by the opening O. Specifically, in an embodiment, the optical machine is, for example, an optical material measuring device RETs (model: RT4200, manufacturer: OTSUKA ELECTRONICS CO., LTD.), which is equipped with a halogen bulb. The liquid crystal molecules 142 are preliminarily obtained by providing a light beam that is irradiated to the pseudo-pixel structure DP and passing through the phase retardation change of the liquid crystal molecules 142 in the alignment region 150a of the pseudo-pixel structure DP. inclination.

As described above, since the pixel structure P in the pixel array 112 and the pseudo-pixel electrode DPE in the pseudo-pixel array 114 have the same configuration, the pixel array 112 and the pseudo-pixel array 114 receive the same. The drive signal Vdc is such that the pretilt angle of the liquid crystal molecules 142 in the alignment region 150a of the pseudo pixel structure DP is also the pretilt angle of the liquid crystal molecules 142 in the alignment region 150a of the pixel structure P.

Further, in the foregoing embodiment, after the completion of steps S10 to S30, the liquid crystal display device 100 using the polymer alignment process can be obtained, and the pretilt angle of the liquid crystal molecules 142 in the alignment region 150a can be measured. However, the invention is not limited thereto. In other embodiments, in the liquid crystal display panel, by setting a plurality of different sets of pseudo-pixel arrays, and by providing openings corresponding to the pseudo-pixel arrays in the outer frame light-shielding portion, the measurement may be separately measured. Pretilt angle to liquid crystal molecules in different alignment regions. Hereinafter, it will be described in detail with reference to FIGS. 7 to 9.

FIG. 7 is a top plan view of a liquid crystal display device in accordance with another embodiment of the present invention. Figure 8 is a top plan view of the light shielding layer of Figure 7. FIG. 9 is a top plan view of the second pseudo-pixel structure and the light shielding layer of FIG. 7. FIG. In addition, please refer to FIG. 7 to FIG. 9 and FIG. 3 to FIG. 5 simultaneously. The embodiments of FIGS. 7 to 9 are similar to the embodiments of FIGS. 3 to 5, and therefore the same or similar elements are denoted by the same or similar symbols. The description will not be repeated.

3 to FIG. 5 and FIG. 7 to FIG. 9 , the liquid crystal display device 100 is different from the liquid crystal display device 200 mainly in that the liquid crystal display device 200 further includes a pseudo-painting between the sealant region C and the display region A. The element array 214 and the outer frame light blocking portion 123 of the light shielding layer 122 further have a plurality of openings O2 corresponding to the pseudo pixel array 214.

In detail, please refer to FIG. 7 and FIG. 9 simultaneously. In this embodiment, the pseudo pixel array 214 has a plurality of pseudo pixel structures DP2, and each pseudo pixel structure DP2 includes a pseudo active element DT2 and a pseudo active element. The DT2 is electrically connected to the pseudo-electrode DPE2, and the pseudo active element DT2 and the pseudo-pixel electrode DPE2 have the same configuration as the pseudo active element DT and the pseudo-pixel electrode DPE, respectively. That is to say, the pseudo active device DT2 may be a bottom gate type thin film transistor or a top gate type thin film transistor, and the pseudo active element DT2 is electrically connected with a corresponding one of the scan lines SL and a corresponding one of the data lines DL, The pixel electrode DPE2 is also divided into four alignment regions 150a to 150d, and the alignment directions of the alignment regions 150a to 150d are different from each other. Specifically, in the present embodiment, the area occupied by the pseudo pixel array 214 is 2 to 6 mm ² , preferably 4 mm ² .

In addition, although three pseudo-pixel structures DP2 are illustrated in FIG. 7, the present invention is not limited thereto. In other embodiments, the embodiment of the present embodiment can also adjust the number of pseudo-pixel structures in the pseudo pixel array according to their design requirements.

In addition, referring to FIG. 8 and FIG. 9 simultaneously, in the present embodiment, the opening O2 in the outer frame light-shielding portion 123 exposes the alignment region 150b in the pseudo-pixel structure DP2. That is to say, only the alignment region 150b of each pseudo pixel structure DP2 is exposed by the opening O2, and the alignment regions 150a, 150c to 150d are covered by the outer frame light shielding portion 123.

The opaque array 114 and the quasi-pixel array 214 are disposed, and the opening O and the opening O2 are disposed in the outer frame opaque portion 123 to expose the alignment region 150a and the pseudo-pixel array 214 in the pseudo-pixel array 114, respectively. The alignment area 150b, after the polymer alignment process is performed on the liquid crystal display panel 200, the alignment area 150a can be separately measured by performing two optical measurement steps for the pseudo pixel array 114 and the pseudo pixel array 214, respectively. And the pretilt angle of the liquid crystal molecules 142 in the alignment region 150b. That is, the pretilt angle of the liquid crystal molecules 142 in the alignment region 150a and the pretilt angle of the liquid crystal molecules 142 in the alignment region 150b are separately measured. In detail, when the pretilt angle of the liquid crystal molecules 142 in the alignment region 150a is to be measured, the light beam supplied from the optical table is irradiated only on the pseudopixel array 114; and when the liquid crystal molecules 142 in the alignment region 150b are to be measured At the pretilt angle, the beam provided by the optical table is only illuminated on the quasi-pixel array 214. In addition, the operation steps of the polymer alignment process and the optical measurement step have been described in detail in the foregoing embodiments, and thus will not be described herein.

In addition, in the embodiment of FIG. 7 to FIG. 9 , although the liquid crystal display device 200 is provided with only two sets of pseudo pixel arrays (ie, the pseudo pixel array 114 and the pseudo pixel array 214 ) and two sets of openings (ie, the opening O and the opening) O2), but the invention is not limited thereto. It is understood by those having ordinary knowledge in the field that in order to measure the pretilt angle of the liquid crystal molecules 142 in the alignment region 150c and the alignment region 150d, a different spectroscopic element may be disposed between the sealant region C and the display region A. Two sets of pseudo-pixel arrays of the array 114 and the pseudo-pixel array 214, and two sets of openings different from the opening O and the opening O2 are further disposed in the outer frame light-shielding portion 123 of the light-shielding layer 122. Moreover, the alignment region 150a in the pseudo-pixel array 114 exposed by the opening O and the alignment region 150b in the pseudo-pixel array 214 exposed by the opening O2 have a different alignment with the alignment region 150b. Therefore, it is possible to know the alignment of the two different alignment directions of the display panel by separately measuring the opening O and the opening O2, and the opening O and the opening O2 have a sufficient distance to prevent the optical instrument from passing through at the same time when measuring Two openings.

In the liquid crystal display device, a quasi-pixel array including a plurality of pseudo-pixel structures is disposed between the seal region and the display region of the substrate, and the light-shielding layer has an opening therein, wherein each pseudo-pixel structure includes a alignment direction The same plurality of alignment areas, and the opening is large to expose only one of the alignment areas. In this way, after the polymer alignment process is performed on the liquid crystal display panel, the pretilt angle of the liquid crystal molecules in the alignment region can be measured by performing an optical measurement step.

The present invention has been disclosed in the above embodiments, but it is not intended to limit the invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100, 200: liquid crystal display device 110, 120: substrate 112: pixel array 114, 214: pseudo pixel array 116, 128: alignment layer 122: light shielding layer 123: outer frame light shielding portion 124: color filter pattern 125: lattice Shape shading 126: opposite electrode 130: sealant 140: liquid crystal layer 142: liquid crystal molecule 144: polymerizable monomer 150a, 150b, 150c, 150d: alignment region 160, 162: polymer layer 180: ultraviolet light A: display area B: Peripheral area C: frame glue area DL: data line DP, DP2: pseudo-pixel structure DPE, DPE2: pseudo-pixel electrode DR1: data line drive circuit DR2: scan line drive circuit DT, DT2: pseudo active element O, O2: Opening P: pixel structure PA: voltage input circuit PE: pixel electrode SL: scanning lines S1, S2, S3, S4: alignment slits S10, S20, S30: step T: active device Vdc: driving signal Vs: Curing voltage signal

1 is a flow chart showing the manufacture of a liquid crystal display device in accordance with an embodiment of the present invention. 2 is a cross-sectional view showing a liquid crystal display device in accordance with an embodiment of the present invention. 3 is a top plan view of the liquid crystal display device of FIG. 2. 4 is a top plan view of the light shielding layer of FIG. 2. FIG. 5 is a top plan view of the pseudo pixel structure and the light shielding layer of FIG. 2. FIG. FIG. 6 is a schematic cross-sectional view showing a polymer compounding process of the liquid crystal display device of FIG. 2. FIG. FIG. 7 is a top plan view of a liquid crystal display device in accordance with another embodiment of the present invention. Figure 8 is a top plan view of the light shielding layer of Figure 7. Figure 9 is a top plan view of the pseudo pixel structure and the light shielding layer of Figure 7.

100: liquid crystal display device 110: substrate 112: pixel array 114: pseudopixel array A: display area B: peripheral area C: sealant area DL: data line DP: pseudo-pixel structure DPE: pseudo-pixel electrode DR1: Data line drive circuit DR2: scan line drive circuit DT: pseudo active element P: pixel structure PA: voltage input circuit PE: pixel electrode SL: scan line T: active element

Claims (14)

A liquid crystal display panel comprising: a first substrate having a display area, a peripheral area, and a sealant area between the display area and the peripheral area; a pixel array disposed in the display area; a pseudo-pixel array disposed between the sealant region and the display region, wherein the first pseudo-pixel array has a plurality of first pseudo-pixel structures, and each first pseudo-pixel structure includes a first alignment a region and a second alignment region, wherein the alignment direction of the first alignment region is different from the alignment direction of the second alignment region, the first alignment region is located at one side of the second alignment region; a second substrate, and The first substrate is oppositely disposed; a light shielding layer is disposed between the first substrate and the second substrate, wherein the light shielding layer has a plurality of first openings, and the first openings respectively expose the first paintings The first alignment regions in the first structure, and the shielding layer shields the second alignment regions in the first pseudo-pixel structures; a mask glue disposed between the first substrate and the second substrate And located in the glue zone; and a liquid Layer disposed on the first substrate, between the second substrate and the sealant. The liquid crystal display panel of claim 1, wherein each of the first pseudo-pixel structures further includes a third alignment region and a fourth alignment region, and the light shielding layer shields the first pseudo-pixel structures The third alignment regions and the fourth alignment regions. The liquid crystal display panel of claim 1, further comprising a second pseudo-pixel array disposed between the sealant region and the display region, wherein the second pseudo-pixel array has a plurality of second a pseudo-pixel structure, each of the second pseudo-pixel structures includes a fifth alignment region and a sixth alignment region, wherein the alignment direction of the fifth alignment region is different from the alignment direction of the sixth alignment region, the fifth alignment The area is located on one side of the sixth alignment area, and the alignment direction of the sixth alignment area is different from the alignment direction of the first alignment area, and the light shielding layer has a plurality of second openings, and the second openings are respectively opposite The sixth alignment regions of the second pseudo-pixel structures in the second pseudo-pixel array should be. The liquid crystal display panel of claim 3, wherein each second pseudo-pixel structure further comprises a seventh alignment region and a eighth alignment region, and the light shielding layer shields the second pseudo-pixel structures The fifth alignment regions, the seventh alignment regions, and the eighth alignment regions. The liquid crystal display panel according to claim 1 or 3, wherein an area occupied by the first pseudo pixel array and the second pseudo pixel array is 2 mm ² to 6 mm ^{2 , respectively} . The liquid crystal display panel of claim 1, further comprising at least one polymer layer disposed between the first substrate and the second substrate, wherein the polymer layer contacts the liquid crystal layer to make the liquid crystal The liquid crystal molecules of the layer exhibit different pretilt angles in the first alignment region and in the second alignment region. A method of manufacturing a liquid crystal display panel, comprising: providing a liquid crystal display panel, the liquid crystal display panel comprising: a first substrate having a display area, a peripheral area, and a sealant area between the display area and the peripheral area; a pixel array disposed in the display area; a first pseudo pixel array, configured Between the sealant region and the display region, wherein the first pseudo-pixel array has a plurality of first pseudo-pixel structures, each first pseudo-pixel structure including a first alignment region and a second alignment region And the alignment direction of the first alignment area is different from the alignment direction of the second alignment area, the first alignment area is located at one side of the second alignment area; and a second substrate is disposed opposite to the first substrate; a light shielding layer disposed between the first substrate and the second substrate, wherein the light shielding layer has a plurality of first openings, the first openings respectively exposing the first of the first pseudo pixel structures An alignment region, and the light shielding layer shields the second alignment regions of the first pseudo-pixel structures; a sealant disposed between the first substrate and the second substrate and located in the sealant region; And a liquid crystal layer disposed on the first substrate, the Between the two substrates and the sealant, wherein the liquid crystal layer comprises a liquid crystal molecule and a polymerizable monomer; performing a polymer alignment process on the liquid crystal display panel to polymerize the polymerizable monomer to form at least one polymer a layer, wherein the polymer layer is disposed between the first substrate and the second substrate, and the polymer layer contacts the liquid crystal layer such that the liquid crystal molecules are present in the first alignment region and in the second alignment region Different pretilt angles; Performing a first optical measurement step to measure a pretilt angle of the liquid crystal molecules in the first alignment regions through the first openings. The method for manufacturing a liquid crystal display panel according to claim 7, wherein the method for performing the polymer alignment process on the liquid crystal display panel comprises: providing a driving signal to the pixel array and the first pseudo pixel array And performing a light process or a heating process on the liquid crystal display panel under the driving signal. The method of manufacturing a liquid crystal display panel according to claim 7 or 8, wherein the first optical measuring step comprises: providing a light beam to be irradiated on the first pseudo pixel array; and measuring the penetration The optical properties of the beam of the first opening. The method for manufacturing a liquid crystal display panel according to claim 7 or 8, wherein each of the first pseudo-pixel structures further includes a third alignment region and a fourth alignment region, and the light shielding layer shields the first The third alignment regions and the fourth alignment regions in a pseudo pixel structure. The method for manufacturing a liquid crystal display panel according to claim 7 or 8, wherein the liquid crystal display panel further comprises a second pixel array disposed between the sealant region and the display region, wherein the The second pseudo pixel array has a plurality of second pseudo-pixel structures, each second pseudo-pixel structure includes a fifth alignment region and a sixth alignment region, and an alignment direction of the fifth alignment region and the sixth alignment region The alignment direction is different, the fifth alignment area is located at one side of the sixth alignment area, and the alignment direction of the sixth alignment area is different from the alignment direction of the first alignment area. The method for manufacturing a liquid crystal display panel according to claim 11, wherein the light shielding layer has a plurality of second openings respectively corresponding to the second motives in the second pseudo pixel array The sixth alignment regions in the prime structure. The method for manufacturing a liquid crystal display panel according to claim 12, further comprising performing a second optical measuring step of measuring the pre-preparation of the liquid crystal molecules in the sixth alignment regions through the second openings inclination. The method for manufacturing a liquid crystal display panel according to claim 11, wherein each second pseudo-pixel structure further comprises a seventh alignment region and an eighth alignment region, and the light shielding layer shields the second alignment The fifth alignment regions, the seventh alignment regions, and the eighth alignment regions in the pixel structure.