TWI244565B - Liquid crystal display panel with fluid control wall - Google Patents

Abstract

A substrate includes fluid control walls for controlling the liquid crystal fluid closer to the liquid crystal dropped spot of a display area or frame-like fluid control walls between a sealing material and the display area. After the liquid crystal is dropped on the display area, a pair of substrates are pasted and then picked out in the atmosphere for applying pressure onto the pair of substrates and diffusing the liquid crystal. The liquid crystal fluid control walls serve to control the liquid crystal fluid, thereby suppressing the liquid crystal contamination caused by the contact of the unhardened sealing material with the liquid crystal and the relevant display failure.

Description

1244565 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a liquid crystal display panel, which is manufactured using a liquid crystal drop-in filling method. [Prior Art] As a thin and light display device with low power consumption, liquid crystal display devices have gradually become popular. The liquid crystal display device is designed to establish a driving circuit and related circuits in a flat device called a liquid crystal display panel. FIG. 1 is a cross-sectional schematic diagram for explaining a schematic structure of a liquid crystal display panel (usually referred to as a display panel in this specification). As shown in FIG. 丨, the liquid crystal display panel 9 is constructed with a pair of overlapping substrates, and the liquid crystal 5 is placed therein. The overlapping substrate pair is made of a thin film transistor (only referred to as a TFT) substrate (also referred to as a TFT substrate) ^ and other colors The filter substrate lb (also known as * CF substrate) is composed of the latter substrate = normal mode, which is composed of three colors of red (R), green, and blue (B). In addition, a spacer 4 is placed between the substrate pair, & and lb to control the gap between the two substrates. A sealing material 7 is filled into the mountain seal 15 around the substrate pair la and lb to adhere the substrate to the substrate. The methods proposed so far for manufacturing the liquid crystal panel 9 are roughly divided into a liquid crystal injection method and a liquid crystal drop-in filling method. The liquid crystal injection method is to overlap the TFT substrate 1a and the CF substrate 1b, adhere the substrates 1a and 1b, and inject the liquid crystal 5 into the gap between the TFT substrate 1 and the CF substrate 1b. On the other hand, the liquid crystal filling method is to drop a specified amount of liquid crystal 5 into one of a TFT substrate and a CF substrate, overlap these substrates with each other, and stick the two together. Stomach method is to combine liquid crystal display panel 9 and inject liquid crystal at the same time

87519.DOC 1244565 Generally, "the gap between the TFT substrate ia and the CF substrate lb which constitutes the liquid crystal display panel 9" is at least 3 to 5 microns. Therefore, through the liquid crystal dripping filling method, 'To fully fill the liquid crystal 5 into the gap of 3 to 5 micrometers, a vacuum chamber needs to be used to make the interval between the LCD panel and the LCD panel vacuum, so that the liquid crystal contacts the liquid crystal inlet of the display panel. And through the capillary effect, and the liquid crystal display panel (pressure difference, the liquid crystal is injected. However, in this method, the interval of 3 to 5 microns into a vacuum, and the operation of the liquid crystal injection takes a long time. Especially, when When the liquid crystal display panel is enlarged and the gap between the substrates is narrowed, the time required for Wang to enter the liquid crystal will become quite long. In addition, the inlet must be sealed after the injection operation is completed. In these cases, the operation of injecting liquid crystal will be It becomes a factor that increases the manufacturing cost. On the other hand, the liquid crystal drip-filling method does not require a vacuum operation, that is, it is not necessary to decompress the 3 to 5 micron interval between the TFT substrate la and the CF substrate 1b. Both substrates constitute a liquid crystal display panel 9. In addition, this method does not need to seal the liquid crystal inlet (operation. Moreover, the time required to fill the liquid crystal becomes shorter. Therefore, compared to liquid crystal Injecting method, this liquid crystal drip filling method can reduce the time required to fill the liquid crystal into the display panel. Hereinafter, the manufacturing using the liquid crystal injection method or the liquid crystal drip filling method will be described. Manufacturing using the liquid crystal injection method includes the following steps ⑴ Coating-sealing material so as to surround the liquid crystal display area and form an opening (liquid inlet), through which the liquid crystal is injected into the surrounding coating. ⑺ Place the interval * to maintain the substrate between 3 and 5 microns. Spacer. In the case of using spacers containing one of ^-or two substrates, there is no need to place 87519.DOC -7- I244565 spacers. (3) Position and adhere the two substrates. (4) According to the type of sealing material Surface, Nippon Electric Power Co., Ltd., shaming | outer or heating the substrate to harden the sealing material. The above operation is completed with a liquid crystal display panel spaced between the substrate pair. (5) It is formed by a large substrate In the case of multiple LCD panels, the substrate is cut to the size of each panel. (6) The LCD monitor panel is placed in a vacuum chamber to inject liquid crystal into the gap between the pair of substrates adhered to each other Then, 'the gap in the liquid crystal display panel is reduced by reducing the vacuum chamber. (7) The liquid crystal is brought into contact with the liquid crystal inlet of the display panel, and the pressure in the vacuum chamber is increased to atmospheric pressure or more. As a result, The liquid crystal is injected through the capillary effect and the pressure difference between the inside and the outside of the liquid crystal display panel. (8) After wiping the liquid crystal adhered to the liquid crystal inlet, the liquid crystal inlet is sealed with an ultraviolet curing resin or the like. Next, referring to FIGS. 2A to 2E Describe the liquid crystal drop-in filling method. Figures 2A to 2E are conceptual diagrams to describe the method of manufacturing a liquid crystal display panel by using the liquid crystal drop-in filling method. Figures 2A to 2E depict four liquid crystal display panels 9, each from The large-scale substrate shown in Figure 1. The manufacturing method using the liquid crystal drop filling method includes the following steps. (1) Place spacer 4 (see Figure 1) so that the distance between the substrate pair la and lb

87519.DOC 1244565 holds 3 to 5 microns. For using one or two substrates with spacers included, no spacers are required. (2) By using a dispenser (see FIG. 2A), the sealing material 7 is applied as a frame so as to surround the display area of one or both substrates (in FIGS. 2A to 2E, the substrate lb). Before or after the sealing material 7 is applied, the sealing material 70 is applied to the outside of the sealing material 7 to fix the two large substrates by using the same dispenser during manufacturing, and cut into four display panels. (3) Drop a specified amount of liquid crystal 5 into the inside of the sealing material 7 (see FIG. 2B). (4) After positioning the substrate pair la and lb to each other, adhere the substrate in a reduced pressure atmosphere (see FIG. 2C). (5) Remove the adhered substrate to atmospheric pressure. Next, in order to harden the sealing material 7, according to the hardening conditions of the sealing material 7, use an ultraviolet lamp "to apply external light to the sealing material, or heat the substrate 丨 (see Fig. 2D). (6) Manufactured from a large substrate 丨In the case of a batch of a plurality of liquid crystal display panels 9, the large substrate 1 is cut to a panel size (see FIG. 2E). The above operation completes the liquid crystal display panel 9. The liquid crystal drop-in filling method described above is, for example, in JP-A_62_89〇25 ( It is proposed in the open wood. In this liquid crystal filling method, there is no need to make the gap between the substrates to be adhered, and the interval between 3 and 5 microns becomes a vacuum. In addition, it is not necessary to seal the entrance of the liquid crystal with iridium. Compared with the liquid crystal injection method, the filling method can reduce the time for filling the liquid crystal into the LCD panel. However, the liquid crystal filling method has a disadvantage, that is, the sealing material and the substrate pair. The bonding strength is low and the sealing material may lose the proper form,

87519.DOC Ϊ 244565 due to the liquid crystal coming into contact with the sealing material that has not yet hardened. In addition, the contact between the unhardened sealing material and the liquid crystal contaminates the liquid crystal, which will cause the display to malfunction. To avoid contact between this unhardened sealing material and the liquid crystal, a sealing material without liquid crystal contamination is required. In addition, as a method of product structure and manufacturing process, a method of placing a frame-shaped wall between the liquid crystal and the sealing material to avoid contact between the unhardened sealing material and the liquid crystal is proposed. This method is disclosed in (Public Case 2), jP_A_6_194615 (Public Case 3), (Public Case 4). [Summary of the Invention] Figs. 3A to 3D, Fig. 4 and Fig. 5 and Fig. 5 are conceptual diagrams, described in the liquid crystal dripping filling < liquid crystal fluidization. In FIGS. 3A to 3D, plan views are shown on the upper side and each plane is shown on the lower side along the cross section of the first eight to A. In FIGS. 4A and 々Η, the plan view is shown on the right side, and each plane along the arrow to A section is shown on the left side. Similarly, in Fig. 5, the plan view is shown on the right, and each plane is shown on the left along a cross section of 2 to /. In the case of manufacturing a liquid crystal display panel by using the above-mentioned liquid crystal filling method), and in n62-89〇25 (published ^ related patents), when the substrates are overlapped with each other, and the gap is filled with liquid At any time, the liquid crystals 5 dropped on the substrate are distributed concentrically with the dropping point as the center, as shown in FIGS. 3A to 3B to 3C to 3D. Every _ times, the substrate pair 1 iodine 1] The interval between the three becomes narrower until the predetermined interval controlled by the spacer 4. As described above, the liquid crystal 5 is centered on the dropping point and is distributed in a concentric circle (shown by a dashed line ^ bu as shown in _4A '). Therefore 'When the LCD 5 does not completely fill the LCD display

87519.DOC 1244565 When panel 9 is displayed, and the substrate ia and a are between ten and +, and the gap does not reach the predetermined gap. ::: Shao: 12, where liquid crystal 5 is in contact with sealing material 7. When the liquid crystal 5 is filled into the entire surface of the liquid crystal display panel 9 as shown in FIG. 4B, finally, the gap between the substrate 1a and the substrate becomes more, and therefore the width of the sealing material 7 becomes See you more. In this case, the sealing material 7 hits the P-knife of the liquid crystal 5 in contact with the substrate material (see FIG. 4B "° 卩 刀 U"), which results in a shortcoming, which makes the bonding strength between the sealing material 7 and the substrate in this part become weaker. low. In addition, in order to avoid liquid crystal contamination caused by the sealing material 7, in the above-mentioned publication 1 or 3 < method, before the liquid crystal contacts the sealing material, the frame-shaped wall 8 is placed inside the sealing material and outside the liquid crystal display area. And the step of separating the unhardened sealing material from the liquid crystal or hardened sealing material. However, in the case where the LCD panel is manufactured using the liquid crystal drop-in filling method, the liquid crystal is dripped quantitatively, so that the gap between the pair of substrates reaches a predetermined gap controlled by the spacer, that is, # 滴 人 LCD When distributed over the entire surface of the LCD panel, the interval is the same height as the wall 8. Therefore, before and after the substrate pair la and lb overlap each other, as shown in FIG. 5, the liquid crystal 5 is higher than the wall 8 (h < H), so that the substrate 1 & does not adhere to the wall 8. Therefore, the liquid crystal 5 overflows from the gap between the wall 8 and the opposite substrate 1b, so that the unhardened sealing material 7 and the liquid crystal 5 are in contact with the contact portion 12. This will cause the display to malfunction due to LCD contamination. It is an object of the present invention to provide a liquid crystal display panel, which is designed to overcome the above disadvantages of the prior art. Another object of the present invention is to provide a liquid crystal display panel, which is manufactured using a liquid crystal drop-in filling method and is designed to prevent a gap between a sealing material and a substrate.

87519.DOC -11- 1244565 Insufficient strength < and the deterioration of the sealing material due to the contact between the sealing material and the substrate surface to prevent display failure. Another purpose of, 嗌, and 嗌 is to provide a liquid crystal display device, which is manufactured by using 方, 曰, and 商人 merchants to fill the squares, and by controlling the fluidization of the liquid crystal to prevent people from sealing due to the hard crystal and the adhesive substrate Liquid crystal contamination caused by material contact is 10,000 yuan, and the purpose of the present invention is, according to one aspect of the present invention, the liquid crystal display panel includes a pair of substrates, in which liquid crystals are placed, and a frame-like sealant formed of a sealing material. And the wall (fluid control wall) located inside the sealed part. It is preferred to place the fluid-controlled chirp near the drip point of the liquid crystal. By placing the mud control wall close to the drop point of the liquid crystal, the adhesiveness after coating the liquid crystal can be controlled to "control the concentric circular distribution of the liquid crystal with the drop point as the center" so that the liquid crystal can be distributed in a rectangular shape instead of a circular shape. . This can increase the filling factor of the liquid crystal 'and control the time when the liquid crystal contacts the sealing portion is substantially fixed' until the gap between the substrate pair approaches the predetermined cell interval controlled by the spacer 'without depending on the sealing portion and the liquid crystal drop Distance between entry points. As a result, the deterioration of the sealing portion and the change in the bonding strength can be prevented. Preferably, the wall located on the substrate can be formed by coating or printing one or both of a photosensitive resin or ceramics, and applying a photolithography to the printed substrate, or directly coating or printing such a material. According to another aspect of the present invention, the liquid crystal display panel includes a pair of substrates in which liquid crystals are placed, a frame-shaped sealing portion formed of a sealing material on the substrate pair, and a fluid control wall, and the fluid control wall includes three layers. Or more than three layers of frame-like way, or three or more layers of substantially frame-like way, 87519.DOC -12- 1244565 with some gaps in it. By: Placing the fluid control wall in three or more layers in a frame-like or substantially frame structure during the process of sticking the substrate after coating the liquid crystal. Collision—The liquid crystal of the fluid control wall can be made by The gap between a wall and an adjacent wall is a fixed time interval. This makes it easy to prevent the un-hardened sealing material (liquid crystal) from being stained. Light # 从 分 · L, 丄,, — The fluid control wall formed as described above is located between the sealing portion and the display area, According to another aspect of the present invention, the liquid crystal display panel includes a pair of substrates, where the liquid crystal is placed, and a frame formed by a sealing material on the substrate pair. A frame-shaped fluid control wall is placed at the liquid crystal dropping point, which is located inside the sealing portion and is between the sealing portion and the display area. The adhesion process after the liquid crystal is applied brings the fluid control wall close to the liquid drop. The liquid control wall placed near the liquid crystal drop point can be controlled with the drop point as the center, and the liquid crystal distribution form is changed from "Change to rectangle. This can increase the fill factor of the liquid crystal, and prevent the flow of the liquid only on the inside of the sealing part and outside the liquid crystal display area. Control the wall contact until the gap between the pair of substrates approaches the predetermined cell interval controlled by the spacer. As a result, the frame-like or / or frame-shaped fluid control wall located inside the sealed portion is used to stop the liquid crystal fluid Reduce the solidification time, thereby preventing the liquidity caused by the unhardened sealing portion. The present invention is not limited to the above-mentioned composition or the specific embodiments mentioned below.

87519.DOC -13- 1244565 embodiments, and can be changed into various forms without departing from the spirit of the invention. [Embodiment] Hereinafter, specific embodiments of the liquid crystal display panel will be described in detail with reference to the drawings. 6A to 6C are exemplary diagrams showing a liquid crystal display panel according to a first embodiment of the present invention. Fig. 6A is a perspective view showing a large TFT substrate 1, which is cut into four panels. Fig. 6B is an enlarged plan view showing a liquid crystal display panel shown in Fig. 6A. FIG. 6C is a cross-sectional view taken along a line A to A in FIG. 6B. Fig. 6A shows the positional relationship of each of the four liquid crystal display panels 9, the display area 2 of each panel, the sealing material 7 of each panel, and the fluid control wall 3 of each panel. As shown in FIG. 6C, each panel 9 includes a combination of a TFT substrate la and a CF substrate 1b, and a liquid crystal 5 therein. In the display area 2, a spacer 4 forming a gap between the control substrate pair la and lb, and a three-layer frame-like fluid control wall 3 are formed. Around the outside of the wall 3, a frame-like sealing material 7 is attached. A sealing material 7 formed around the outermost portion is used to adhere the large substrate 1. This specific embodiment is characterized in that a large substrate 1 is used, which includes a pre-formed fluid control wall 3 to control the flow rate of the liquid crystal 5 inside or / and outside the display area of the TFT substrate or CF substrate, and is formed in the TFT substrate or CF substrate. A transparent electrode and a TFT circuit required to drive the liquid crystal 5. In the case where the liquid crystal display 9 is manufactured using the liquid crystal dropping and filling method, the liquid crystal is dropped on any large substrate cut into a TFT substrate and another substrate cut into a CF substrate. In this specific embodiment, the liquid crystal 5 is dropped on a large substrate 1 which becomes a TFT substrate. Then, another large substrate (becoming a CF substrate) was adhered to a large soil substrate under reduced pressure. This process can simultaneously fill the entire surface of the large substrate with the liquid crystal 5 and combine the liquid crystal display panel 9. The process of making the gap between two large substrates (referred to as the cell gap) that is suitable for each other to the predetermined size controlled by the spacer 4 and filling the liquid crystal $ into the liquid crystal display area 2, the liquid crystal is dripped The human point is the center, and the concentric circle is also shown in Figure 3. Therefore, in the process of filling the liquid crystal into the cell gap, at the portion 12, the sealing portion 7 is in contact with the liquid crystal 5. In this case, the gap between the substrate pairs is not determined in advance. As the filling process continues, the dropped liquid crystals 5 are distributed over the entire surface of the display panel 9. Finally, the gap between the two substrates is more positive, as shown in FIG. 4B, making the width of the sealing material 7 wider. In this case, the sealing material hits a portion where the liquid crystal 5 is in contact with the two substrates (see part 1 in FIG. 4B). This causes a decrease in the bonding strength between the sealing material 7 and this portion 11 of both substrates < disadvantages. Therefore, it is necessary to use a substrate 1 with a fluid control wall 3 formed on one or both sides, and control the concentric circular distribution of the liquid crystal 5 fluid to avoid filling the liquid crystal until the gap between the two substrates is controlled by the spacer 4 When the gap is determined in advance, the contact between the sealing material 7 and the liquid crystal 5 is made. Next, the manufacture of the fluid control wall 3 will be described with reference to FIGS. 7A to 7D. 7A to 7D are exemplary diagrams illustrating a process of manufacturing a fluid control wall. In FIGS. 7a to 7D, first, the photosensitive resin 20 is coated on the substrate 丨 by a spin coating method, a slit coating method, or a printing method so that the resin 丨 can have a predetermined thickness (see FIG. 7A). Next, the photomask 21 is used so that the fluid control wall 3 can be convexly projected on the substrate 1. With the photomask 21, the photosensitive resin 20 is exposed by using an exposure source 22 (see FIG. 7B). After that, the development of the coated substrate is performed, and the process of removing the photosensitive resin 20 coated on the part where the fluid control wall 3 is not formed is performed (see the figure).

87519.DOC -15-1244565 ^). Finally, the developer adhered to the substrate is washed away, and the substrate i is dried. Next, the fluid control wall 3 is convexly completed on the substrate 1. Alternatively, a method of directly coating the photosensitive resin 3 or the thermosetting resin on the substrate by using a printing method or a dispensing method is proposed, so that the fluid control can be formed convexly, and then a predetermined treatment is continuously performed. To harden the convex part. Next, the effects of the fluid control wall 3 in the case where a liquid crystal display panel is manufactured by the substrate of this specific embodiment will be described with reference to FIGS. 8A to 8D are diagrams explaining the fluid control effect of the first embodiment of the present invention. Above FIGS. 8A to 8D, plan views are shown. Below it, a cross section along the line A-A of the plan is shown. In addition, FIGS. 9A and 9B are diagrams for explaining a fluid control wall effect of the first embodiment of the present invention. Above FIGS. 9A and 9B, a plan view is shown. Below it, a cross section along line A-A of the plan view is displayed. On a large substrate with a fluid control wall 3 formed thereon, a sealing material 7 is coated on the outside of the liquid crystal display panel, and a spacer 4 is placed on the substrate i. The sealing material 7 is used to bond the two substrates and prevent leakage of the liquid crystal material. The spacer 4 is used to fix the interval between the substrates when the liquid crystal display panel is assembled. Next, the liquid crystal 5 is dropped on one of the large substrates (here, it corresponds to a TFT substrate indicated by the number la). The total amount of the liquid crystal 5 dropped is equal to the volume of the space defined by the inside of the two substrates and the sealing material 7. Preferably, the total amount of the liquid crystal 5 is divided into several drops. The liquid crystal can be dropped on any substrate having the fluid control wall 3 formed thereon, and another substrate without the fluid control wall 3. Next, under reduced pressure, the substrate la of the liquid crystal 5 is dropped completely with another substrate

87519.DOC -16-Ϊ 244565 1 / weight 璺 (see Figure 8A). Can be pressed on the overlapping substrate and a. When the substrate h − and the other substrate lb overlap, the liquid crystals 5 may be distributed in a concentric circle shape (see FIG. 8B), and the machine fa control wall 3 is used as a resistance to the liquid crystal flow, and thus forms a wall Shao Fen has a slower flow rate than other parts without walls. Therefore, by placing the fluid control wall 3 with the liquid crystal dropping point as the center, the liquid crystals 5 are distributed in a rectangular shape instead of a concentric circle shape (see FIGS. 8C and 8D). The fluid control wall 3 is provided to avoid direct distribution of the liquid crystal 5 on the liquid crystal display panel 9 up to the two substrates. The gap with _ reaches a predetermined unit interval controlled by the spacer 4, resulting in contact between the liquid crystal 5 and the sealing material 7. This makes it possible to minimize the amount of the sealing material 7 colliding with the substrate ^ and the hard-crystal 5 contact portion, which solves the problem of a decrease in the bonding strength between the sealing material 7 and the two substrates 1 a and 1 b. The description is about the application of the sealing material 7 dripped onto the substrate la of the liquid crystal. The sealing material 7 may be applied to the opposite substrate lb. Alternatively, the sealing material 7 may be coated on both substrates. In addition, the above description also concerns the coating of the spacer 4 on the substrate into which the liquid crystal is dropped. The spacer 4 may be coated on the opposite substrate ib or on the two substrates lb. The spacer may be circular or cylindrical. Like the fluid control wall, the spacer can be formed on the substrate in advance by using a photosensitive resin or the like. As shown in Fig. 6-8 to 60: and 88-81), the fluid control wall 3 can be placed to control the liquid crystal 5 fluid only near the sealing material 7, or to control the dripping of liquid crystal: Zhouyuan fluid (Figs. 9A and 9B Four sides of each display panel), as shown in Fig. 9 and Fig. 9, = depicts a second embodiment of the present invention. In addition, the above description is: the rectangular (or square) distribution of the liquid crystals 5 by the fluid control wall 3 effect. According to this specific embodiment, the purpose of placing the fluid control wall 3 is to control the liquid crystal =

87519.DOC -17- 1244565 Fluid: and prevent the contact between the sealing material section 7 and the liquid crystal 5 until the interval between the two substrates reaches a predetermined interval specified by the spacer 4. Therefore, it is not necessary to make the distribution form of the liquid crystal 5 rectangular. It is only necessary to place the fluid control wall 3 in the form of a sealing material setting. 10A to 10E are cross sections explaining the position of the fluid control wall. If the wall is placed to control the liquid of the liquid crystal, the height hl of the fluid control wall 3 can be adjusted to be equal to the height of the early interval h. The LCD panel is combined as shown in FIG. 10A. In addition, the height hl can be adjusted. Dagger below unit interval. Furthermore, the fluid control wall 3 may be formed on two substrates. ㈣ 上。 The fluid control wall 3 formed on one substrate la can overlap in position with a < matching ' formed on another substrate, as shown in Fig. 1 (c). Alternatively, the position of the former wall 3 may not match the latter's wall, that is, the wall 3 may be arranged as a labyrinth structure. The resolution of the fluid control wall 3 may be equal to the height of the unit interval h, and after the combination of the substrates as shown in Figure _, or afterwards, it may be lower than the height of the unit interval h, as shown in Figure 10E. 11 'to 11D are exemplary diagrams < showing exemplary forms of the fluid control wall. The mud control wall 3 may be a close arrangement of a prismatic wall as shown in FIG. 10A, a cylindrical wall or a conical wall as shown in FIG. 11B, or a cylindrical wall or a conical shape as shown in FIG. Wall arrangement. In this case, the combination of cylindrical or conical fluid control walls can be arranged at regular or irregular intervals. It goes without saying that the fluid control wall 3 can provide the same function as the spacer ', when the substrates are combined, the interval between the two substrates is fixed. Figure 2 is a conceptual diagram explaining the fluidization of liquid crystals. Figures 13 and 14 are conceptual diagrams explaining the effects of a fluid control wall. Fig. 15 is an exemplary diagram showing the location of the Ninmumu control wall. The flow rate of the liquid crystal can be determined according to, for example,

87519.DOC -18- 1244565 The steps of connecting the TFT substrate to the liquid crystal 5; the pattern of the CF substrate, the orientation is thin; and the conditions such as the printing state and the grinding state cause the drop direction to be different. Fig. 12 shows a case where the flow velocity in the? Direction is faster than that in the? Direction, and the dropped liquid crystals are distributed in an elliptical shape according to the above conditions. If the velocity in the χ direction is different from the velocity in the Y direction, the liquid crystal fluid control that controls the liquid crystal velocity,

The positions of the walls in the square and Υ directions are different, that is, faster: :: put X ^ This can increase the fluid resistance and therefore it is easier to control the fluid. The figure shows the position of the liquid crystal fluid control wall 3, and only controls the vicinity of the sealed part. "Hard crystal 5 fluid (which is shown in the center of the display panel without fluid control). Figure Yejing fluid control wall 3 position to control the drip of the substrate. = 5 fluids (four sides of Figure 14). In the case of the liquid crystal fluid control wall in the liquid crystal PXFI security panel "head stateless area, it is better to place these walls 3 between the pixel Pix patterns, as shown in Fig. 15. The purpose of hanging is to prevent the LCD panel from being closed. In addition, it is necessary to make the width of each wall 3 between the pixel patterns small = Γ. FIG. 16 is an exemplary diagram showing the liquid crystal fluid control, the best place for the wall, and the width of the wall 3 needs to be in the range of 10 to 50 microns. Health: = Crystal Γ filling method for the manufacture of display panels, but also produces sealing materials in contact with "before = material is completely hardened," the liquid crystal due to the close and unhardened f days 丨 > / clothing may cause display failure. In order to prevent It is better to prevent the contamination of the liquid crystal and the sealing material from the sealing material, and prevent the frame-like wall from being controlled until the liquid crystal fluid is surrounded by the display area 17C. The sealing material of the present invention has been hardened. 17A to 2nd embodiment of Zhiyue. Figures 17A to 17C are exemplary β $, and 7F is a third embodiment of the present invention.

87519.DOC -19- 1244565 examples of liquid crystal display panels. Fig. 17A is a perspective view showing a lamp substrate cut into four liquid crystal display panels. FIG. 17B is an enlarged plan view showing a liquid crystal display panel shown in FIG. 17A. Fig. 17C is a cross section cut along the line A-A in Fig. NB. Fig. 17C shows that the TF substrate 1a is superposed on another substrate, that is, the CF substrate 1b. 18A to 18C are exemplary diagrams showing the effects of a liquid crystal display panel according to a third embodiment of the present invention. FIG. 18A is an enlarged plan view showing a liquid crystal display panel shown in FIG. 17B. 18B and 18C are enlarged views showing corner portions of FIG. 18A. The substrates in which the liquid crystal is dropped are shown as substrate 1 in FIGS. In this specific embodiment, as shown in FIGS. 17A to 17C, the frame-like first fluid control wall 3a is formed inside the sealing material 7 coated around the display area 2 and outside the display area 2. The first fluid control wall 3a is preferably formed convexly. The first fluid control wall 3a is not allowed to contact the sealing material 7, but the wall 3a is placed as close to the sealing material 7 as possible. In addition, the second fluid control wall 3a is located inside the first fluid control wall 3a, and the third fluid control wall 3c is located inside the second fluid control wall 3b. Preferably, the distance between the wall and the wall, or between the wall and the wall < is about 2.5 cm. Of course, other intervals can provide the same effect. Therefore, the interval size is not limited to this value. The first fluid control wall 3a is formed in a rectangular shape without a slit. The second fluid control wall 3b includes a slit at a half position on each side. The third fluid control wall 3c includes a slit in each corner. In this specific embodiment, the width between the walls 3 & or the walls 3b and 3c is 45 microns, and the slit is 30 microns. Now, a fluid process of liquid crystal in a case where a liquid crystal display panel is manufactured using a substrate of a specific embodiment using a liquid crystal dropping filling method will be described. 87519.DOC -20- 1244565 First, the process of dropping liquid crystal 5 is performed, which corresponds to the volume defined by the inside of the two substrates and the sealing material 7. The liquid crystal 5 is dropped in several times. Then, 'under a reduced pressure, the substrate 1a into which the liquid crystal 5 is dropped overlaps the other substrate 1b. At this time, pressure can be applied to the two substrates so that the gap between the substrates can reach a predetermined interval h controlled by the spacer 4. After the substrate 丨 & weighs another substrate 113, the liquid crystal 5 dripped on the substrate ia is gradually distributed over the entire surface of the substrate. In the first stage, the distributed liquid crystals 5 reach the third fluid control wall 3 (see FIG. 18A). The liquid crystals 5 are distributed along the fluid control wall 3c and are located on the entire surface of the substrate. Then, the liquid crystals 5 overflow from the slits formed in each corner, and then are distributed to the periphery of the substrate 丄. The liquid crystal 5 overflowing from the slit formed at the corner of the third fluid control wall 3c reaches the second fluid control wall 31 ^. Then, it splits along the second fluid control wall 3b and reaches the periphery of the panel (see FIG. 18B). A slit is formed in the center of each side of the second fluid control wall 3b. Therefore, the liquid crystal 5 is controlled by the second fluid, and the slit 313 flows out, and then is further distributed to the outside of the substrate. The liquid crystal 5 overflowing from the slit of the second fluid control wall 3b reaches the first fluid control wall 3a 'and then distributes along the first fluid control wall, and is distributed on the panel. The 'sealing material 7' inside the fluid control wall h is hardened. Preferably, the sealing material used in the liquid crystal drip filling method is a UV light reaction type, or a UV light and / or a thermal reaction torture. In order to harden the sealing material 7 'at this time, it is irradiated with ultraviolet light to ::: =: to seal the contact between 5 ... This prevents the display from being broken by the display and the display failure. No slits are formed in the first fluid

87519.DOC -21-1244565 Control wall 3a, no liquid crystal is filled between the sealing material 7 and the first fluid control wall 3a. However, by heating the composite panel, the main purpose is to harden the sealing material 7 and stabilize the unit interval between the substrates 1a and 1b. The liquid crystal 5 will expand, so that a tiny slit can be formed between the substrate and the first fluid control wall 3a. The liquid crystal 5 overflows from this slit, and then fills the space between the sealing material 7 and the first fluid control wall 3a. The dripped liquid crystal 5 is calculated in advance to match the gap between the two substrates 1a and 1b and the interval volume defined by the sealing material 7. Therefore, when the liquid crystal display panel is cooled, the liquid crystal completely fills the gap between the two substrates, so that the liquid crystal display panel can have a predetermined unit interval. The above specific embodiment has a structure in which as a gap of the second fluid control wall 3, a slit overflowed by the liquid crystal is formed at the center of each side. If the liquid control effect of the liquid crystal is obtained, two or more slits can be formed on each side. In addition, this embodiment also has a structure in which the slit of the second fluid control wall 3b is located at the center of each frame side, and the slit of the third fluid control wall 3c is located at the corner of each frame side. Where appropriate, the slit of the second fluid control wall 3b is located at a corner of each frame side, and the slit of the third fluid control wall 3c is located at the center of each frame side. In the above specific embodiment, therefore, the slit position of the second fluid control wall 3b is shifted by the slit of the third fluid control wall 3c. If the liquid control effect of the liquid crystal is obtained, the slit of the second fluid control wall 3b can be matched with the third fluid control wall 3c. In addition, although three fluid control walls 3 are provided in the above specific embodiment, the same effect can be obtained by more types of walls. FIG. 19 is a plan view similar to FIG. 18, and illustrates a liquid crystal display panel according to a fourth specific embodiment of the present invention. In this specific embodiment, as shown in Fig. 19, 87519.DOC -22-1244565 Ding Chengcheng and brother _ and brother two fluid control wall 3 b and 3 c each slit, opposite and close to another fluid control wall 3d. The fluid control wall 3d is used to prevent liquid crystals from overflowing through each slit. The fluid control wall 34 has a function of preventing liquid crystal flow from overflowing from the slits formed in the second and third fluid control walls 3c and 3c. In particular, the fluid control wall 34 is arranged in a concentric circle centered on the drip point, and the liquid crystal 5 The distribution has substantially the same form as the position of the sealing material 7. This specific embodiment can provide the same effect as the foregoing specific embodiment. 20A and 20B are exemplary diagrams showing a liquid crystal display panel according to a fifth embodiment of the present invention. FIG. 20A is a plan view similar to FIG. 19. FIG. 20A is a cross-section of FIG. 20A along the line A_A. As shown in FIGS. 20a and 20B, another fluid control wall 3d is located near a liquid crystal dropping point indicated by a virtual circle. In addition, the frame-like walls 3a, 3b and 3c are located between the sealing material 7 and the display area 2. The other fluid control wall 3d located near the dropping point of the liquid crystal is used to prevent the liquid crystals 5 centered around the dropping point from being distributed concentrically. According to this specific embodiment, as described above, the distribution form of the liquid crystals 5 is not circular but square, and is shaped by a square sealing material 7. This effectively increases the filling factor of the liquid crystal 5, and greatly prevents the liquid crystal 5 from coming into contact with the frame-like wall 8 located inside the sealing material 7 and outside the display area until the gap between the two substrates approaches the predetermined cell interval. As mentioned above, according to the present invention, the fluid control wheel is positioned close to the liquid crystal dripping to prevent the liquid crystal flow, thereby reducing the liquid crystal flow rate. According to this principle, the present invention can control the concentric circular distribution of liquid crystals centered on the dropping point, so that the distribution form of the liquid crystals is not circular. People coefficient:

87519.DOC -23- 1244565 The time is substantially fixed, with the sealing material section, until the gap between the two substrates is close to the gap. This effect prevents the sealing material branch and makes the distance between the contact between the liquid crystal and the seal and the drop point of the liquid crystal independent of the predetermined form of the spacer controlled by the spacer and the change in bonding strength. In addition, because- ㈣㈣, and three or more layers of frame-like fluid control wall on the side of the sealing material, coated with liquid crystal; the process of sticking the substrate, can prevent the first hanging from sticking out, <> night crystal, the fluid suppression wall and Between the adjacent fluid control walls & doors, the door and the door are spaced for a fixed period of time to prevent liquid crystals from being stained by the sealing material, clothing, and display failures caused by liquid crystal contamination. In addition, the fluid control wall is located near the drop point of the liquid crystal, and other frame-shaped fluid control walls are also located between the sealing material and the display area. The wall of the fluid is located at the point of the crystal drop. The center of the liquid crystal is distributed in a concentric circle centered on the point of the drop. During the coating process, the paste process is applied, and the liquid distribution form is not circular. , And Jishan ~ Shang 'is a rectangle (square) shaped by the starting and sealing materials. This function can increase the fill factor of the liquid crystal and prevent the liquid crystal from contacting the frame-shaped wall located outside the display area and the display area until: the 4 gaps between the substrates are close to the predetermined _ and the early interval. This can provide a high-quality shell LCD display panel, pot wire from the house to the frame-shaped fluid control wall erected on the inside of the chasing material, arranged to improve the prevention of Luo Ri, cloud bribery, etiquette, night and day, The effect of the machine with a fixed length of time, thereby preventing the liquid crystal from being contaminated by the unhardened sealing material, and preventing the display from malfunctioning due to the liquid crystal contamination. Those who are familiar with this technique need to know more about + v. Although the above description is a specific example of the present invention, the present invention is not limited to this, and it may produce

87519.DOC -24-1244565 Various changes and modifications in the spirit of the invention and the scope of the attached patent application. [Schematic description] Figure 1 is a cross-sectional schematic diagram explaining the general structure of a liquid crystal display panel, and Figures 2A to 2E are conceptual diagrams explaining a method for manufacturing a liquid crystal display panel using a liquid crystal drop-in filling method. 3A to 3D are conceptual diagrams explaining liquid crystal fluidization by the liquid crystal dropping filling method; FIGS. 4A and 4B are conceptual diagrams explaining liquid crystal fluidization by the liquid crystal dropping filling method; FIG. 5 is a The concept diagram is explained in the liquidization of liquid crystals by the liquid crystal dripping and filling method; FIGS. 6A to 6C are exemplary diagrams showing a liquid crystal display panel according to a first embodiment of the present invention; and FIGS. 7A to 7D are exemplary diagrams showing The process of manufacturing a fluid control wall; Figures 8A to 8D are exemplary diagrams showing the effects of the fluid control wall in the first embodiment of the present invention; Figures 9A and 9B are exemplary diagrams showing the fluid control wall in the second embodiment of the present invention Effect of the embodiment; Figs. 10A to 10E are cross-sections for explaining the position of the fluid control wall; Figs. 11A to 11D are exemplary diagrams showing an exemplary form of the fluid control wall; Fig. 12 is a conceptual diagram explaining the fluid control wall Fig. 13 is a conceptual diagram explaining the effect of a fluid control wall; Fig. 14 is a conceptual diagram explaining the effect of a fluid control wall; 87519.DOC -25- 1244565 Fig. 15 is an exemplary diagram showing fluid control The position of the wall; Fig. 16 is an exemplary diagram showing the width of the fluid control wall; Figs. 17A to 17C are exemplary diagrams showing the liquid crystal display TF panel according to the third embodiment of the present invention; Figs. 18A to 18C are An exemplary diagram showing a liquid crystal display panel effect according to a specific embodiment of the present invention; FIG. 19 is a plan view explaining a liquid crystal display panel according to a fourth specific embodiment of the present invention; and FIGS. 20A and 20B are exemplary diagrams showing A liquid crystal display panel according to a fifth embodiment of the present invention. [Illustration of representative symbols of the drawings] 1: Large substrate 1 a · Thin 旲 Transistor substrate lb: Color filter substrate 2: Display area 3, 3 a, 3 b, 3 c, 3 d, 8: Fluid control wall 4: Spacer 5 · Liquid crystal 7, 70: Sealing material 9 · Liquid crystal display tf panel 11, 12: Contact part 1 8: Ultraviolet light 20: Photosensitive resin 21: Photomask 22: Exposure source 87519.DOC -26-

Claims (1)

Patent Application No. 1244_Si 122637 No. 'Chinese version, please replace the patent scope (June 94). 1 1! Pick up, please patent scope:' 1. A liquid crystal display panel, which includes: a pair of each other Overlapping substrates; a liquid crystal material interposed between the pair of substrates and forming a display area; and a sealing portion formed of a sealing material interposed between the pair of substrates and surrounding the display area in a frame-like manner, Wherein, the display area located inside the sealed portion is a fluid control wall arranged in a frame shape with a gap therebetween. 2. A liquid crystal display panel comprising: a pair of substrates overlapping each other; a liquid crystal material interposed between the pair of substrates and forming a display area; and a sealing portion formed of a sealing material interposed between the pair of substrates Between the substrates, the display area is surrounded in a frame-like manner, wherein the frame-shaped fluid control wall is arranged in three or more layers inside the sealing portion and outside the display area to surround the fresh TF area along the sealing portion. i or 'Relative to other frame-like fluid control walls, a pair of frame-like fluid control walls arranged near the display area have multiple slits, and in the frame-like fluid control wall, each slit is along The sealing portion is formed to divide the frame-shaped fluid control wall, to divide the position of a group of slits of one of the pair of frame-shaped fluid control walls, and to divide the other of the pair of frame-shaped fluid control walls. The positions of the other groups of slits are staggered so that the groups of slits face the other frame-shaped fluid control wall, and the other groups of slits are connected to the frame 87519-94061. ^ .doc 1244565 is opposed to the shape of the fluid control wall, which is arranged closest to the seal but the outermost one of the above-mentioned frame-like fluid control wall does not have a slit to divide it. . 3. If the scope of the patent application is 1st, the wave is%-叩 ^^ /, and the day is not a chrome panel, wherein the fluid control wall is formed on any one of the pair of substrates. 4. As described in the scope of the patent application No. 1 of the clean q ^ # 丄, and / or from day to day non-destructive panel, wherein the fluid control wall is formed on each of the pair of substrates. 5. The liquid crystal display panel according to item 4 of the scope of patent application, wherein when the pair of substrates overlap each other, the fluid walls formed in the pair of substrates are related to the fluids located on the other substrate. The control wall is opposed, and one of the pair of substrates faces the other substrate. 6. The liquid crystal display panel according to item 4 of the scope of patent application, wherein when the pair of substrates are combined, the fluid control walls formed in the pair of substrates are related to the fluid control on the other substrate. The walls are staggered, and on the surface of one of the pair of substrates that is opposite to the other substrate, and the fluid control wall located on each of the substrates is arranged in a labyrinth structure, and the cross-section portion after the LCD panel is assembled in. 7. The liquid crystal display panel according to item 1 of the patent application scope, further comprising: inserting a spacer between the pair of substrates in the display area to adjust the interval between the pair of substrates when the pair of substrates overlap each other. And when the pair of substrates overlap each other, each of the fluid control walls has the same height as the gap between the pair of substrates, or the same height as the spacer. 8. The liquid crystal display panel according to item 1 of the patent application scope, further comprising: 87519-940617.DOC 1244565 A spacer inserted between the pair of substrates in the display area, so as to adjust between the pair of substrates when they overlap each other. The interval between the pair of substrates, and when the substrates are combined, the height of each of the fluid control walls is smaller than the gap between the pair of substrates or less than the height of the spacer. 9. The liquid crystal display panel according to item 1 of the scope of patent application, wherein when the substrates are combined, the fluid control wall formed on one of the pair of substrates is in contact with the other of the pair of substrates to adjust between The space between the pair of substrates. 10. The liquid crystal display panel according to item 1 of the patent application scope, wherein in the display area where the liquid crystal material is dropped, the fluid control walls are arranged to surround one of the pair of substrates. 11 · The liquid crystal display panel according to item 1 of the patent application, wherein in the display area, the pattern of the pixels is arranged on one of the pair of substrates. 12 · If the liquid crystal display panel of item i i of the patent application scope, wherein the fluid control walls are respectively arranged between the patterns of the picture element. 1 3 · If the liquid crystal display panel of item 丨 of the patent application scope, wherein the fluid control walls are located closer to the drip point of the liquid crystal in the display area inside the sealed panel. 14. If the liquid crystal display panel according to item 丨 of the patent application scope, one of the sealing portions has a pair of sides extending in the X direction and another pair of sides extending in the γ direction and crossing the X direction, One group of these fluid control walls are arranged along the X direction, and another group of these fluid control walls are arranged along the γ direction. 15. If the liquid crystal display panel according to item 14 of the scope of patent application, there are more fluid control walls arranged along the -direction of χ 87519-940617.DOC 1244565 and Y-direction than along the X-direction and γ The fluid control walls arranged in the other direction are surrounded by the fluid resistance of the liquid crystal material dripped on one of the regions of the pair of substrates. 16. If the liquid crystal display panel of item No. 14 of the scope of application for patents, wherein the fluid control wall group located at X Wanxiang is different from other fluid control wall groups, so that the liquid crystal material on the substrate- In the χ direction, the fluid resistance in the Υ direction is different for the liquid crystal material scattered on one of the pair of substrates in the Υ direction. 17. The liquid crystal display panel according to the scope of the patent application, wherein the frame-like arrangements of the fluid control walls are listed inside the display area, and are surrounded by the frames of the fluid control walls. The regions are different regions from each other. … 1 8 · The liquid crystal display panel of item i in the scope of patent application, wherein the fluid control walls < several frame-like arrangements are arranged to surround an area inside the display area in the manner of the fluid control walls Of these frame-like arrangements, < is surrounded by those that are closer to the sealing portion than others. The 19.4 application is referred to as the liquid crystal display panel of the first item in the patent scope, wherein the fluid control wall is formed by a cylindrical wall or a conical wall, and is arranged close to each other along the sealing portion. 20. For example, the liquid crystal display panel of the second patent application range, wherein the fluid control walls are formed on any one of the pair of substrates. 21. For example, the liquid crystal display panel of the second patent application scope, which further includes additional fluid control walls, located between the pair of frame-shaped fluid control walls, 87519-940617.DOC 1244565, wherein these other fluid control walls are respectively Opposite the slit group that divides one of the pair of frame-shaped fluid control walls, and one of the pair of frame-shaped fluid control walls is located closest to the display area. 22. The liquid crystal display panel according to item 2 of the patent application scope, further comprising another fluid control wall, which is located inside the display area and is surrounded by the frame-shaped fluid control walls. 23. The liquid crystal display panel according to claim 22, wherein inside the display area, the other fluid control walls are arranged along the sealing portion in a frame shape with a space between them. 24. The LCD panel of claim 23, wherein in the display area where the liquid crystal material is dropped, the frame-like arrangement of the other fluid control walls surrounds one of the pair of substrates. 87519-940617.DOC