TWI240835B - Liquid crystal panel assembling process and liquid crystal panel - Google Patents

Abstract

A liquid crystal panel assembling process comprising the following steps is disclosed. First, a first substrate and a second substrate are provided. A patterned sealing member is disposed on the first substrate. The patterned sealing member defines a display region and a plurality of buffer regions that lean against the display region. Then, liquid crystal is disposed on the first substrate or the second substrate. After, the first substrate is laminated with the second substrate and the liquid crystal is located in the display region without the buffer regions. Thereafter, the outer part of the patterned sealing member is cured. Then, the first substrate and the second substrate are pressed to push the excess liquid crystal into at least one buffer region with breaking the uncured patterned sealing member. Final, the uncured part of the patterned sealing member is cured.

Description

1240835 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a liquid crystal panel assembly process (丨 i qu id crystal panel assembling process) and a liquid crystal panel, and more particularly to a liquid crystal panel assembly process capable of solving excessive liquid crystal filling. The liquid crystal panel assembly process and liquid crystal panel which cause gravi ty mura phenomenon. [Previous Technology] For the rapid progress of the multimedia society, most of them have benefited from the rapid progress of semiconductor devices or human-machine display devices. As far as displays are concerned, liquid crystal displays (L i q u i d C r y s t a 1 D i s p 1 a y, L C D) with high picture quality, good space utilization efficiency, low power consumption, and superior characteristics have gradually become the mainstream of the market. The liquid crystal panel of a liquid crystal display is generally composed of an upper substrate, a lower substrate, and a liquid crystal disposed therebetween, and the surrounding of the display panel uses a sealing member to seal the liquid crystal between the upper substrate and the lower substrate. The material of the seal is usually heat curing glue or ultraviolet curing glue, which is cured by heating or ultraviolet irradiation, respectively. The sealing member not only has a function of sealing the liquid crystal between the upper substrate and the lower substrate, but also has a function of maintaining a cell gap (c e 1 1 g a p). FIG. 1 is a flowchart of a conventional liquid crystal panel assembly process, and FIG. 2 is a schematic diagram of a patterned seal of a conventional liquid crystal panel. Please refer to FIG. 1 and FIG. 2. A conventional LCD panel assembly process using a drop injection method (One Drop Fi 1 1, 0DF) is provided with a first substrate 1 1 0, and a sealing member 1 2 0. The frame is coated on the first substrate 11 0 as in step S 1 10. Pick up

13497twf.ptd Page 7 1240835 V. Description of the invention (2) Drop the liquid crystal 130 on the center of the first substrate 1 1 0 and let the liquid crystal 1 30 flow to the entire area surrounded by the seal 1 2 0 Range, as in step S 1 2 0. Then, a second substrate 140 is pressed onto the first substrate 1 10 in a vacuum state, and the first substrate 110 and the second substrate 1 40 are bonded by the sealing member 120, as in step S 1 3 0. After that, the sealing member 120 is cured by ultraviolet rays to seal the liquid crystal 130 therein, as in step S1 40. Finally, since the material of the seal 120 is usually a mixture of a heat-curing adhesive and an ultraviolet curing adhesive, it is necessary to perform a baking to completely cure the seal 120, such as step S150. It is worth noting that in the conventional liquid crystal panel assembly process using the drip injection method, since the amount of the dropped liquid crystal is difficult to control, it is impossible to maintain uniform cell gaps throughout the LCD panel after assembly. Since the size of the cell gap is also the thickness of the liquid crystal layer, it has a great influence on the display effect of the liquid crystal panel. As a result, the display quality of the liquid crystal panel is not good. In addition, since the panel is placed in an upright position during use, excessive liquid crystals will be further affected by gravity and flow downward, resulting in a more uneven gravity distribution of the liquid crystal distribution, which in turn affects the display quality of the liquid crystal panel. SUMMARY OF THE INVENTION The object of the present invention is to provide a liquid crystal panel assembly process and a liquid crystal panel, which are suitable for solving the problem of uneven gravity caused by excessive liquid crystal. The invention provides a liquid crystal panel, which is composed of a first substrate, a second substrate, a liquid crystal layer, and a patterned seal. The second substrate is disposed on the first substrate. The liquid crystal layer and the patterned seal are disposed between the first substrate < and the second substrate. The patterned seal includes an outer frame and at least one buffer wall. The outer frame surrounds the liquid crystal layer. The defined area of the buffer wall is different from that of some outer frames

13497twf.ptd Page 8 1240835 V. Description of the invention (3) Multiple buffers. In this embodiment, the curing of the buffer wall is, for example, later than the curing of the outer frame, so that excess liquid crystal can enter at least one buffer region before the buffer wall is cured. The arrangement of the buffer areas is, for example, from small to large and arranged in rows. A part of the liquid crystal layer is located in at least one buffer area, for example. The patterned seal is, for example, a heat-curing adhesive, a light-curing adhesive, or a mixture of a light-curing adhesive and a heat-curing adhesive. The present invention further proposes a liquid crystal panel assembly process, which includes the following steps. First, a first substrate and a second substrate are provided. A patterned seal is disposed on the first substrate. The patterned seal defines a display area and a plurality of buffer areas, and the buffer areas are adjacent to the display area. Then, the liquid crystal is arranged on the first substrate or the second substrate. Then attach the first substrate and the second substrate, where the liquid crystal system is located in the display area but does not enter the buffer area. A first curing step is then performed to cure at least the peripheral portion of the patterned seal. Then, the first substrate and the second substrate are pressurized so that the excess liquid crystal breaks through the uncured portion of the patterned seal and enters at least one buffer zone. Finally, a second curing step is performed to cure the uncured portion of the patterned seal. In this embodiment, the areas of the buffer regions are, for example, the same or different from each other. The patterned seal is, for example, a thermosetting adhesive, a light curing adhesive, or a mixture of a light curing adhesive and a heat curing adhesive. The method of performing the first curing step and the second curing step is, for example, ultraviolet exposure. The method of performing the second curing step may also be baking or baking plus ultraviolet exposure. The present invention further proposes a liquid crystal panel assembly process, which includes the following steps. First, a first substrate and a second substrate are provided. Configuration on the first substrate

13497twf.ptd Page 9 1240835 V. Description of the invention (4) There is a patterned seal. The patterned seal includes an outer frame, at least one common wall and a plurality of partition walls. The two ends of the partition wall are respectively connected to the outer frame and the common wall. Part of the outer frame defines a plurality of buffer zones with the common wall and the partition wall. The buffer zones are adjacent to each other and arranged in rows with partition walls. The part of the area surrounded by the frame other than the buffer area is a display area. Liquid crystal is then disposed on the first substrate or the second substrate. After that, the first substrate and the second substrate are bonded together, wherein the liquid crystal system is located in the display area but does not enter the buffer area. A first curing step is then performed to cure the outer frame and the common wall. Then, the first substrate and the second substrate are pressurized so that the excess liquid crystal breaks through the uncured partition wall and enters at least one buffer zone. Finally, a second curing step is performed to cure the separation wall. & In this embodiment, the areas of the buffer regions are, for example, the same or different from each other. The patterned seal is, for example, a thermosetting adhesive, a light curing adhesive, or a mixture of a light curing adhesive and a heat curing adhesive. The method of performing the first curing step and the second curing step is, for example, ultraviolet exposure. The method of performing the second curing step may also be baking or baking plus ultraviolet exposure. The present invention also provides a process for assembling a liquid crystal panel, which includes the following steps. First, a first substrate and a second substrate are provided. A patterned seal is disposed on the first substrate. The patterned seal includes an outer frame and at least one buffer wall. A part of the outer frame and the buffer wall jointly define a plurality of buffer areas with different areas. The part of the area surrounded by the frame other than the buffer area is a display area. The liquid crystal is then disposed on the first substrate or the second substrate. After that, the first substrate and the second substrate are bonded together, wherein the liquid crystal system is located in the display area but does not enter the buffer area. The patterned seal is then cured. Then cut a part of the patterned seal

13497twf.ptd Page 10 1240835 V. Description of the invention (5) Connect the display area with at least one of the buffers. Finally, the first substrate and the second substrate are pressurized, so that the excess liquid crystal enters into the buffer area communicating with the display area. In this embodiment, a method of cutting a portion of the patterned seal includes using laser light. The buffer areas are, for example, adjacent to each other and arranged in a row, and the arrangement manner is, for example, from small to large. The patterned seal is, for example, a heat-curing adhesive, a light-curing adhesive, or a mixture of a light-curing adhesive and a heat-curing adhesive. The method of curing the patterned seal is, for example, ultraviolet exposure, baking, or a combination of both. In summary, in the liquid crystal panel assembly process and the liquid crystal panel of the present invention, the display area and the plurality of buffer areas are defined by the sealing member, and when excess liquid crystal drips into the display area, the excess liquid crystal is pressed into the buffer area Inside. Therefore, the phenomenon of uneven gravity caused by excessive liquid crystal can be solved, and the display quality of the liquid crystal panel can be improved. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, preferred embodiments are described below in detail with reference to the accompanying drawings, as follows. [Embodiment] FIG. 3A is a flowchart of an assembly process of a liquid crystal panel according to a first embodiment of the present invention, FIG. 3B is a flowchart of assembling a batch of liquid crystal panels, and FIGS. 4A to 4B are shown as Schematic diagrams of two liquid crystal panels according to the first embodiment of the present invention.

Referring to FIG. 3A and FIG. 4A, the liquid crystal panel assembly process of the first embodiment of the present invention first provides a first substrate 4 1 0 and a second substrate 4 50, as in step < S310. In an embodiment, the first substrate 410 and the second substrate 450 may be thin film transistor arrays (TFTs).

13497twf.ptd Page 11 1240835 V. Description of the invention (6) Array) substrate and color filter substrate. In another embodiment, the first substrate 4 10 and the second substrate 4 50 may be a multilayer color filter on array substrate and an opposite substrate having a common electrode. The multilayer color filter substrate is formed by forming a light-shielding array, a color filter film, and a thin film transistor on the same substrate. In another embodiment, the first substrate 41 0 and the second substrate 450 may be an in-plane switching mode (IPS mode) thin-film transistor array substrate and an opposite substrate. In-plane switching mode thin-film transistor array substrate is formed by forming a thin-film transistor and a common electrode on the same substrate. A patterned sealing member 4 2 0 is disposed on the first substrate 41 0. The patterned seal 4 2 0 includes, for example, a frame adhesive, which is a heat curing adhesive (such as Mitsui Chemical's Struct bond XN-21 series 21, J), and a light curing adhesive (such as ThreeBond Co., Ltd) 's 30Y series) or a mixture of light-curing adhesive and heat-curing adhesive (such as M itsui

Chemical) Struct bond XUR series, Sekisui Chemical S series, ShinEtsu Chemical

T ^ chS ^ ea ^ series and X series of Henkei Loctite Tech). In this embodiment, the patterned sealing member 4 2 0 is a mixture of a light curing adhesive and a heat curing adhesive as an example. The patterned seal 4 2 0 includes an outer frame 4 2 2 and at least one buffer wall 424. Specifically, the buffer wall 424 is a portion of the pattern $ seal 4 2 0 located in the outer frame 42 2. A part of the outer frame 42 2 defines a plurality of buffer areas 43 2 having different areas together with the buffer walls 4 24. The frame 4 2 2 is a display area 4 3 0 except the buffer area 4 3 2. The buffer zones 4 3 2 are, for example, adjacent to each other and arranged in a row.

Page 12 1240835 V. Description of the invention

For example, from small to large, as shown in Figure 4A. Alternatively, the buffers 432 may be scattered without being adjacent to each other, as shown in FIG. 4B. Next, for example, the liquid crystal 4 4 0 is arranged in the display area 4 3 0 on the first substrate 4 10 by a drop-injection method, as in step 4 3 2 0. Of course, the liquid crystal 4 4 〇 may also be first disposed on a portion of the second substrate 4 5 0 corresponding to the display area 4 3 0. —After that ', for example, in a vacuum environment, the second substrate 4 4 0 is adhered to the first substrate 4 by the adhesiveness of the patterned seal 4 2 0, as in step S330. At this time ', due to the blocking of the buffer wall 424, the liquid crystal 44o does not enter the buffer zone 432. The entire patterned seal 42 is then cured, as in step S3 40. The method of 'curing the patterned sealing member 4 2 0 in this embodiment is, for example, ultraviolet exposure. In addition / after curing the patterned seal 4 2 0 by ultraviolet exposure, for example, the patterned seal 4 2 0 is baked to completely cure the heat-curing adhesive. h Next ', the liquid crystal panel 400 can be selectively inspected to determine whether there is unevenness of gravity 1, such as step S350. If the result of the detection shows that the liquid crystal is out / seeing, ”a portion of the patterned sealing member 42 0 ′ is cut to connect S 3 f 10 and at least one buffer 4 32, as in step S 3 60. The cut portion is patterned to seal the 4 9 n + + t 甘 Gan, and the method of obtaining the 4 2 0 includes using laser light. The laser light can be injected into the substrate 4in and the iridium- # right side A. The substrate 4 50 is shot into the position ′, and the incident position is in the area without the seal 4? N \ road ^ or better. The power of the laser light is to 'damage' the patterned pattern without damaging the first substrate 4 1 0 and the second substrate 4 (J is preferred. Finally, the first substrate 4 1 0 and the second substrate 4 5 are pressed. 0 to make it redundant

13497twf.ptd Page 13 1240835 V. Description of the invention (8) The liquid crystal 4 4 0 enters the buffer area 4 3 2 which communicates with the display area 4 3 0, as in step S 3 7 0 °. In addition, after step S 3 7 0, For example, the liquid crystal panel 400 is tested again to determine whether a gravity unevenness is generated, as in step S380. If the test result shows that the liquid crystal 4 4 0 is still excessive, the process returns to step S 3 6 0 and cuts a portion of the patterned sealing member 4 2 0 to communicate the display area 4 3 0 with another buffer 4 32. If it is found that the LCD panel 400 has no weight unevenness, the entire assembly process of the LCD panel 400 is completed. As mentioned above, in the process of assembling the liquid crystal panel of the first embodiment, since the patterned seals are designed with a plurality of buffer areas having different areas, the laser can be used to open the buffer area when the liquid crystal is overfilled to accommodate Excessive liquid crystal 'solves the problem that the gravity unevenness affects the display quality of the liquid crystal panel. In addition, because the areas of the buffers are different, the best adjustment effect can be obtained by selecting different buffers. In the above-mentioned embodiment, since the patterned seal and each buffer area are cured first, it is necessary to further add a detection program to determine whether there is a gravity unevenness. After that, the seal is cut by, for example, the aforementioned laser light, so that the liquid crystal material located in the display area of the liquid crystal panel can enter a predetermined number of buffers. Then, the liquid crystal panel is squeezed so that the remaining liquid crystal material flows out of the display area and flows into the buffer area. Please refer to Fig. 3B. Generally speaking, the liquid crystal panels manufactured in the same batch should have approximately the same cell volume, and the liquid crystal drip volume is also the same. Therefore, after the assembly of the same batch of LCD panels is completed (such as step S 1 0), several LCD panels will be tested first to confirm that they are

13497twf.ptd Page 14 1240835 V. Description of the invention (9) Whether there is uneven gravity, such as step S 2 0. If there is a defect of uneven gravity, it is necessary to find out the optimal area of the buffer area required to accommodate the excess liquid crystal material by using a try and error method, such as step S30. Then, in other liquid crystal panels in the same batch, the patterned sealing member can be cut according to the above results, so as to obtain a buffer area with an optimal area to accommodate the excess liquid crystal material 5 (step S 40). In addition, since the areas of each buffer area are not exactly the same, when the buffer area is used to accommodate excess liquid crystal, the best adjustment effect can be obtained by selecting different buffer areas. For example, if, after trial and error, it is determined that the laser light needs to be used to cut the seal to allow the liquid crystal material to enter a buffer zone with a unit volume of 1 and a unit volume of 2, then other LCD cells in the same batch can use As a result, the laser light cutting seal is directly used to allow the liquid crystal material to enter a buffer zone with a unit volume of 3, which can save repair time and increase production capacity. Please continue to refer to FIG. 4A. The liquid crystal panel 400 of the present invention is mainly composed of a first substrate 41 0, a patterned sealing member 4 2 0, a liquid crystal layer 4 40, and a second substrate 450. The patterned sealing member 4 2 0 and the liquid crystal layer 44 0 are disposed between the first substrate 4 0 and the second substrate 4 50. The patterned sealing member 4 2 0 includes an outer frame 4 2 2 and at least one buffer wall 424. The outer frame 4 2 2 surrounds the liquid crystal layer 440. The buffer wall 4 24 and a part of the outer frame 4 2 2 define a plurality of buffer zones 4 3 2 having different areas. A part of the liquid crystal layer 4 4 0 is, for example, located in at least one buffer region 4 3 2, or all of the buffer regions 4 3 2 have no liquid crystal layer 4 4 0. It is worth noting that the assembling process of the liquid crystal panel 400 of the first embodiment of the present invention is not limited to that of the first embodiment of the present invention as shown in FIG. 3A.

13497twf.ptd Page 15 1240835 V. Description of the invention (10) The LCD panel assembly process can also be used with the LCD panel assembly process such as the example, or it can be prepared in the second implementation. In other words, as long as the LCD panel: panel assembly process . The design of multiple buffers are all desirable for the present invention ":: J ::, different Figure 5 is a schematic diagram of a μ panel according to a second embodiment of the present invention. Please refer to FIG. 5 and FIG. 6A for the example / night day and day. The second aspect of the present invention-v-bonding and soil-tanning. * The LCD panel assembly process of an embodiment is k for one. The first substrate 610 and the second substrate 650, as in step S510. The types of the first substrate 610 and the second substrate 650 may be the same as those of the first embodiment. A patterned seal 62 is disposed on the first substrate 610. The material selection of the patterned sealing member 6 2 0 may be the same as that of the patterned sealing member 420 in FIG. 4A. In this embodiment, a mixture of a light curing adhesive and a heat curing adhesive is used as an example. The patterned seal 6 2 0 defines a display area 6 3 0 and a plurality of buffers 6 3 2. The patterned seal 6 2 0 may include an outer frame 6 2 2, at least one common wall 6 2 4 and a plurality of partition walls 6 2 6. The two ends of each partition wall 6 2 6 are respectively connected to the outer frame ^ 2 2 and the common wall 6 2 4 to separate the outer frame 6 2 2 and the common wall 6 2 4 into a plurality of the aforementioned buffer zones 6. 3 2. In other words, the buffer regions 6 3 2 are adjacent to each other and arranged in a row, for example, with partition walls 6 2 6. The part of the area surrounded by the outer frame 6 2 2 except the buffer area 6 3 2 is a display area 6 3 0. The areas of the buffer regions 6 3 2 are, for example, the same or different from each other. In another embodiment of the present invention, the outer frame 6 2 2 and the common wall 6 2 4 are formed by, for example, a light-curing adhesive. The partition wall 6 2 6 is formed by, for example, a heat-curing adhesive.

13497twf.ptd Page 16 1240835 V. Description of the invention (ii) In another embodiment of the present invention, the outer frame β 2 2 and the common wall 6 2 4 are formed of, for example, a mixture of a light curing adhesive and a heat curing adhesive. The partition wall 6 2 6 is formed of, for example, a thermosetting adhesive. Next, for example, the liquid crystal 6 40 is disposed in the display area 6 30 on the first substrate 6 1 0 by using a dropping injection method, as in step s 5 2 0. Of course, in yet another embodiment of the present invention, the liquid crystal 6 40 may be first disposed on a portion of the second substrate 6 50 corresponding to the display area 6 3 0. ^ Then, for example, in a vacuum environment, attach the second substrate 6 50 to the first substrate 6 with the adhesiveness of the patterned sealing member 6 2 0, as in step S530. At this time, the liquid crystal 640 does not enter the buffer area 632 due to the blocking of the common wall 624 and the partition wall 626. _ After that, a first curing step is performed to cure the patterned sealing member 6 2 0 outside the frame 6 2 2 and the common wall 6 2 4, as in step S5 4 0. In this embodiment, the outer frame 622 and the common wall 624 are cured, for example, by using a photomask and irradiating the outer frame 6 2 2 and the common wall 624 with ultraviolet exposure. Among them, the photomask covers a part of the partition wall 6 2 6 to protect it from hardening by ultraviolet rays. Of course, the light used for exposure is not limited to ultraviolet light, it should be determined according to the characteristics of the light curing adhesive used. It is worth noting that, in another embodiment of the present invention, when the outer frame 622 and the common wall 624 are formed by a light-curing adhesive, and the partition wall 626 is formed by a heat-curing adhesive; In one embodiment, when the outer frame 6 2 2 and the common wall 6 2 4 are formed of, for example, a mixture of a light-curing adhesive and a heat-curing adhesive, and when the partition wall 6 2 6 is formed of a heat-curing adhesive, for example, using The process of curing the outer frame 622 and the common wall 624 by means of ultraviolet exposure, that is,

13497twf.ptd Page 17 1240835 V. Description of the invention (12) The use of the photomask can be omitted. Next, the first substrate 610 and the second substrate 650 are pressurized so that the excess liquid crystal 6 3 0 breaks through the uncured portion of the patterned seal 6 2 0, that is, breaks through the partition wall 6 2 6 and enters at least one buffer 6 3 2, as in step S 5 5 0. In this way, the buffer area 6 32 can be used to accommodate the excess liquid crystal 6 3 0, thereby solving the gravity unevenness caused by the excess liquid crystal 6 3 0. In this embodiment, since both the outer frame 6 2 2 and the common wall 6 2 4 have been cured, the liquid crystal 6 30 will be restricted by the common wall 6 2 4 when entering the buffer zone 6 2 2, but only from The buffers 6 3 2 on both sides begin to enter one by one. In this way, the number of buffers 6 3 2 entered by the liquid crystal 6 3 0 can be easily controlled to control the thickness of the liquid crystal 6 3 0 at the optimal position throughout the LCD panel without the liquid crystal 6 3 0 too little counter-effect. Finally, a second curing step is performed to cure the uncured portion of the patterned seal 620, that is, the partition wall 626, as in step S560. In the embodiment in which a mixture of a light-curing adhesive and a heat-curing adhesive is used to form a patterned seal, a method of performing a second curing step to cure the partition wall 6 2 6 is, for example, first performing UV exposure, and after performing UV exposure, For example, the entire patterned seal 6 2 0 is baked. The purpose of this baking is to partially cure the heat-curable adhesive in the patterned sealing member 620. In another embodiment in which the outer frame 622 and the common wall 624 are formed by a photo-curing adhesive, and the partition wall 6 2 6 is formed by a heat-curable adhesive, or the outer frame 6 2 2 and the common wall 6 2 4 are, for example, Formed by a mixture of light-curing glue and heat-curing glue, and the partition wall 6 2 6 is formed by heat-curing glue. In another embodiment, the second curing step is performed, for example, by sealing the entire pattern.

13497twf.ptd Page 18 1240835 V. Description of the invention (13) Piece 6 2 0 Bake. The purpose of this step is to partially cure the heat-curable adhesive in the patterned seal 620, so that the step of UV exposure and the required cost can be omitted. In addition, please refer to FIG. 6B, the common wall 6 2 4 of the patterned sealing member 6 2 0 may be a plurality of pieces. The buffer zone 6 3 2 can be arranged on each side of the outer frame 6 2 2 and is not limited to one side. The area sizes of the buffer zones 6 3 2 may be the same as or different from each other. Of course, the arrangement of the buffers 6 3 2 can also be arranged from large to small, or from small to large as shown in FIG. 6C. Alternatively, the layout of the patterned seal 620 can also be as shown in Figs. 6D and 6E. Among them, the patterned sealing member 6 2 0 shown in FIG. 6E omits the design of the common wall, and only the combination of the outer frame 6 2 2 and the buffer wall 626 defines the display area 630 and the buffer area 632. Of course, the assembly process of the liquid crystal panel 600 shown in FIGS. 6A to 6E is not limited to the assembly process of the liquid crystal panel 600 shown in FIG. 5 according to the second embodiment of the present invention. The liquid crystal panel assembly process of the first embodiment of the invention, or other liquid crystal panel assembly processes. Compared with the first embodiment of the present invention, the second embodiment of the present invention cures the patterned seal in a two-curing process, and allows more than liquid crystal to break through the uncured pattern between the two-curing processes. The seal is entered into the buffer zone, so there is no need to determine the volume of the buffer zone by trial and error, and then the patterned seal is cut to allow excess liquid crystal to enter the buffer zone. In other words, in the process of assembling the liquid crystal panel of the second embodiment of the present invention, it is only necessary to make the patterned sealing member defining the buffer zone to include a soft or uncured portion, and the excess liquid crystal will be automatically determined to be occupied during the extrusion process. How much volume of buffer. In this way, the process operation interval can be increased (p r 〇 c e s s

13497twf.ptd Page 19 1240835 V. Description of the invention (14) window) can not only improve the production yield, but also reduce the precision requirements of the process equipment, which can significantly reduce the cost of LCD panel production and quality control. Please refer to FIG. 6E again. In this embodiment, the number of the patterned seals 6 2 0 is multiple (here, 6 is taken as an example), and each patterned seal 6 2 0 ′ defines one Display area 6 3 0. The size of each display area 630 depends on the size requirements of the LCD panel. In the subsequent process, the first substrate 6 1 0 and the second substrate 6 50 are cut into multiple parts along the dotted line D 1, for example, and each part can be a liquid crystal panel. Each liquid crystal panel includes, for example, a patterned sealing member 6 2 0. It is worth noting that the cutting lines of the first substrate 610 and the second substrate 650 do not necessarily overlap each other, and the dotted line D 1 is for illustration purposes only. As mentioned above, this method can be used for mass production of liquid crystal panels to reduce production time and cost, and of course, it can also be applied to other embodiments of the present invention. In summary, in the process of assembling the liquid crystal panel and the liquid crystal panel of the present invention, the entire sealing member is directly cured, and when the liquid crystal is found to be excessive, the buffer area is opened to accommodate the excessive liquid crystal. At the same time, buffers with different areas can obtain a more appropriate accommodating area for excess liquid crystals with different volumes, and save the time required to open the buffers. Alternatively, the display area and a plurality of buffer areas are defined by the seal. For example, at least the periphery of the seal member is cured first, and then the liquid crystal passing the s in the display area is pressed into the buffer zone 'before the seal member defining the buffer zone is cured. Because the patterned seal is designed with a buffer zone, the liquid crystal panel assembly process and liquid crystal panel of the present invention can solve the phenomenon of uneven gravity caused by excessive liquid crystal and improve the display of the liquid crystal panel

13497twf.ptd Page 20 1240835 V. Description of the invention (15) Quality. Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be determined by the scope of the attached patent application. ❿ Ο

13497twf.ptd Page 21 1240835 Brief description of the diagram Figure 1 shows a flowchart of a conventional LCD panel assembly process. FIG. 2 is a schematic diagram of a patterned seal of a conventional liquid crystal panel. FIG. 3A is a flowchart illustrating an assembly process of a liquid crystal panel according to the first embodiment of the present invention. FIG. 3B is an assembly flowchart of the entire batch of liquid crystal panels. 4 A ~ 4 B are schematic diagrams showing two liquid crystal panels of the first embodiment of the present invention. FIG. 5 is a flowchart illustrating an assembly process of a liquid crystal panel according to a second embodiment of the present invention. 6A to 6E are schematic diagrams of five liquid crystal panels according to the second embodiment of the present invention. [Illustration of Graphical Symbols] 1 1 0: first substrate 1 2 0: seal 1 3 0: liquid crystal 1 4 0: second substrate SI 1 0 to S1 50: step 4 1 0, 6 1 0: first substrate 4 2 0, 6 2 0: Patterned seal 4 2 2, 6 2 2: Frame 4 2 4: Buffer wall 430, 630: Display area 4 3 2, 6 3 2: Buffer 440 · Liquid crystal (liquid crystal) Floor)

13497twf.ptd Page 22 1240835

13497twf.ptd Page 23

Claims (1)

1240835 6. Scope of patent application 1. A liquid crystal panel including: a first substrate; a second substrate disposed on the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; A patterned seal is disposed between the first substrate and the second substrate. The patterned seal includes: an outer frame surrounding the liquid crystal layer; and at least one buffer wall, the buffer wall and a part of the outer frame. It defines a large number of buffer areas with different areas. 2. The liquid crystal panel according to item 1 of the scope of patent application, wherein the curing of the buffer wall is later than the curing of the outer frame, so that excess liquid crystal can enter at least one of the buffer zones before the buffer wall is cured. Inside. 3. The liquid crystal panel according to item 1 of the scope of patent application, wherein the arrangement of the buffer zones is from small to large and arranged in a row. 4. The liquid crystal panel according to item 1 of the scope of patent application, wherein part of the liquid crystal layer is located in at least one of the buffer regions. 5. The liquid crystal panel according to item 1 of the scope of patent application, wherein the material of the patterned sealing member includes a mixture of light curing adhesive and heat curing adhesive. 6. The liquid crystal panel according to item 1 of the scope of patent application, wherein the material of the patterned sealing member includes one of a light curing adhesive and a heat curing adhesive. 7. A process for assembling a liquid crystal panel includes: providing a first substrate and a second substrate, the first substrate is provided with a patterned seal, the patterned seal defines a display area and a plurality of buffer zones, The buffers are close to the display area; 13497twf.ptd Page 24 1240835 6. The scope of the patent application is to arrange liquid crystal on one of the first substrate and the second substrate; fit the first substrate and the second substrate, where the liquid crystal is located in the display area but The buffers are not entered; a first curing step is performed to cure at least a peripheral portion of the patterned seal; ^ pressurizing the first substrate and the second substrate to break excess liquid crystals. The patterned seal An uncured portion of the piece enters at least one of the buffer zones; and a second curing step is performed to cure the uncured portion of the patterned seal. 8. The liquid crystal panel assembling process according to item 7 of the scope of patent application, wherein the areas of the buffer zones are the same as each other. 9 · The liquid crystal panel assembly process as described in item 7 of the scope of patent application, wherein the areas of the buffer zones are different from each other. 10. The process for assembling a liquid crystal panel according to item 7 of the scope of the patent application, wherein the patterned sealing member includes a mixture of a light curing adhesive and a heat curing adhesive. 11. The assembly process for a liquid crystal panel according to item 7 of the scope of the patent application, wherein the patterned seal includes one of a light curing adhesive and a heat curing adhesive. 1 2. The process for assembling a liquid crystal panel according to item 7 of the scope of patent application, wherein the method for performing the first curing step includes ultraviolet exposure. 1 3. The process for assembling a liquid crystal panel according to item 7 of the scope of patent application, wherein the method for performing the second curing step includes ultraviolet exposure. 1 1 4. The liquid crystal panel assembly process as described in item 7 of the scope of patent application, wherein the method for performing the second curing step includes baking. 13497twf.ptd Page 25 1240835 6. Scope of patent application 1 5 · The LCD panel assembly process described in item 7 of the scope of patent application, wherein the method of performing the second curing step includes ultraviolet exposure and baking. 16. A process for assembling a liquid crystal panel includes: providing a first substrate and a second substrate, the first substrate is provided with a patterned seal, the patterned seal includes an outer frame and at least one wall And a plurality of partition walls, two ends of the partition walls are respectively connected to the outer frame. And the common wall, and part of the outer frame and the common wall and the partition walls define a plurality of buffer zones, and the buffer zones are The partition walls are adjacent to each other and arranged in a row, and a portion of the area surrounded by the outer frame other than the buffer zones is a display area; a liquid crystal is disposed on one of the first substrate and the second substrate. Attaching the first substrate and the second substrate, wherein the liquid crystal system is located in the display area but does not enter the buffer zones; performing a first curing step to cure the outer frame and the common wall; pressurizing the The first substrate and the second substrate, so that excess liquid crystals break through the uncured partition walls and enter at least one of the buffer zones; and a second curing step is performed to cure the partition walls. 1 7. The LCD panel assembly process according to item 16 of the scope of patent application, wherein the areas of the buffer zones are the same as each other. 18. The liquid crystal panel assembling process according to item 16 of the scope of patent application, wherein the areas of the buffer zones are different from each other. < 1 9. The liquid crystal panel assembling process according to item 16 of the scope of patent application, wherein the patterned seal includes a mixture of a light curing adhesive and a heat curing adhesive 13497twf.ptd Page 26 1240835 6. Scope of Patent Application. 2 0 · The liquid crystal panel assembly process as described in item 16 of the scope of patent application, wherein the patterned seal includes one of light-curing adhesive and heat-curing adhesive 0 2 1. In the liquid crystal panel assembly process, a method for performing the first curing step includes ultraviolet exposure. 22. The liquid crystal panel assembly process according to item 16 of the scope of patent application, wherein the method for performing the second curing step includes ultraviolet exposure. 2 3. The liquid crystal panel assembly process according to item 16 of the scope of patent application, wherein the method for performing the second curing step includes baking. 2 4. The liquid crystal panel assembly process described in item 16 of the scope of patent application, wherein the method for performing the second curing step includes ultraviolet exposure and baking 2 5. A liquid crystal panel assembly process, including: providing a first substrate And a second substrate, a patterned seal is arranged on the first substrate, the patterned seal includes an outer frame and at least one buffer wall, and part of the outer frame is a plurality of buffers with different areas defined by the buffer wall Area, and a portion of the area surrounded by the outer frame other than the buffer areas is a display area; liquid crystal is disposed on one of the first substrate and the second substrate; and the first substrate and the second substrate are attached A substrate, in which the liquid crystal system is located in the display area but does not enter the buffer zones; curing the patterned seal; cutting a part of the patterned seal to communicate the display area with the buffers 13497twf.ptd Page 27 1240835 6. At least one of the patent application areas; and pressurizing the first substrate and the second substrate so that excess liquid crystals enter the buffers that communicate with the display area. 2 6. The liquid crystal panel assembly process according to item 25 of the scope of patent application, wherein the method of cutting a part of the patterned seal includes using laser light. 2 7. The LCD panel assembly process according to item 25 of the scope of patent application, wherein the buffer zones are adjacent to each other and arranged in a row. 2 8. The LCD panel assembly process as described in item 25 of the scope of patent application, wherein the arrangement of the buffer zones is from small to large. 29. The process for assembling a liquid crystal panel according to item 25 of the scope of patent application, wherein the patterned seal includes a mixture of a light-curing adhesive and a heat-curing adhesive. 30. The liquid crystal panel assembling process according to item 25 of the scope of patent application, wherein the patterned seal includes one of light curing adhesive and heat curing adhesive. 31. As described in item 25 of patent application scope The liquid crystal panel assembly process, wherein the method of curing the patterned seal includes ultraviolet exposure. 32. The process for assembling a liquid crystal panel according to item 25 of the scope of patent application, wherein the method of curing the patterned seal includes baking. 33. The process for assembling a liquid crystal panel according to item 25 of the scope of patent application, wherein the method of curing the patterned seal includes ultraviolet exposure and baking. 13497twf.ptd Page 28