TW200415392A - Image display device - Google Patents

Abstract

The present invention provides an image display device capable of preventing pillar-shaped spacers in the image display device from being fitted into cavity structures during a temporary securing step and a position alignment step. Among the pillar-shaped spacers 3a-31 formed on an opposed substrate 2, pillar-shaped spacers 3a-3f are arranged in a pattern B shown by single-dashed lines and pillar-shaped spacers 3g-31 are arranged in a pattern C shown by double-dashed lines. Pattern A shown by broken lines in Fig. 4 is the projection onto the opposed substrate 2 from the arrangement pattern of the cavity structure formed on an array substrate 1 that is adhered to the opposed substrate 2. Patterns B and C are the patterns formed by parallel displacements of the pattern A only with different distances from each other and/or in different directions. By arranging each of the pillar-shaped spacers on the patterns B and C with an amount more than 1 and less than 2/3 of the total amount, it is possible to reduce the percentage of the pillar-shaped spacers fitted into the cavity structures.

Description

200415392

V. Description of the invention (1) --- L I. [Technical field to which the invention belongs] The present invention relates to an image display device that uses a columnar spacer to define a substrate interval, especially to a pre-fixing process and an alignment process, which can be suppressed. Image display device with columnar spacers embedded in the hole structure. 2. [Prior art] In the prior art, there is known an image display device in which a liquid crystal layer is arranged between substrates disposed oppositely, and the alignment of liquid crystal molecules contained in the liquid crystal layer is controlled. Since the light transmittance of a liquid crystal material depends on the alignment state of the liquid crystal molecules, controlling the alignment of the liquid crystal molecules can control the photometric ratio of the liquid crystal ', which can be used for image display. Fig. 9 is a sectional view of a conventional liquid crystal display device. As shown in FIG. 9, a liquid crystal display device with a conventional structure includes an array substrate: 101 ′ Opposing substrate 10 opposite to the array substrate 101 102 ^ 1 03 ^ ^ & ^ 〇2 ^ spacer 1 0 4 gauge (see For example, Patent Document 1.) The water puppet has a structure that supplies a potential to the liquid anode layer 103. The dendritic spacers 104 are used to hold the substrate 100, so that the thickness of the liquid crystal layer 103 is "sentence 01." The space between U2 is the use of the optical properties of the liquid crystal layer 103. The characteristics are used for image display; the d factor must be uniform. The columnar spacer 104 is formed of a photosensitive layer 1003, specifically, for example, in the form of light lithography ^ 'Shizhi and other materials The opening is formed on the surface of 200415392 of the opposite substrate 102. 5. Description of the invention (2). The assembly process of the liquid crystal display device is to keep the array substrate 丨 〇1 and the opposite substrate 102 at a specified interval and attach them. The liquid crystal material constituting the liquid crystal layer 103 is sealed between the array substrate 丨 and the opposing substrate 102. Here, the array substrate = inverse 01 and the opposing substrate 丨 02 each have a wiring structure corresponding to a display pixel, etc. Therefore, in the actual assembly process, the array substrate 101 and the opposing substrate 102 are first pressed and fixed in advance, and then the array substrate 101 or the opposing substrate 102 are moved horizontally. It is formally fixed after the position. Patent Document 1 Japanese Patent Laid-Open No. 2-223922 Bulletin (Page 4, Figure 3) III. [Summary of the Invention] However, the existence of the 'columnar spacers 丨 〇4' may sometimes occur during the alignment process after the array substrate 101 and the opposite substrate 102 are pre-fixed. Causes a problem. Specifically, when the array substrate 100 or the opposing substrate 10 is moved in the horizontal direction after pre-fixing, the 'columnar spacer 1 104' hinders the movement of the array substrate 101 or the opposing substrate 1 02. There is a problem that the alignment accuracy is lowered. This problem is described below. Fig. 10 is a schematic diagram showing a state where the columnar spacers 104 are embedded in the hole structure 10a. As shown in Fig. 10, the array substrate 10a has a structure. A thin film transistor 107 for the switching element function and a pixel electrode 1 〇5. A flattening layer i 〇8, a pixel electrode 〇5 and a thin film transistor are arranged between the thin film transistor 107 and the pixel electrode 107. 1 0 7 is electrically connected through a hole structure drilled in a part of the planarization layer 〇 08. Therefore, in order to reduce the generation of the pixel electrode 105 and the pixel electrode 105

Page 10 200415392 V. Description of the invention (3) The parasitic capacitance between the wiring structures such as the thin film transistor 10 and the lower layer, the thickness of the flattening layer 108 must be about 2 to 4 microns, and the depth of the hole structure 109 Also around 2 to 4 microns. Because the array substrate 101 has a hole structure 10, the columnar spacer 104 may be embedded in the hole structure 09 during the pre-fixing process and the alignment process. The columnar spacer 104 embedded in the hole structure 109 moves the array substrate 10m in the horizontal direction or opposes the substrate 102 'because force is applied in a direction that prevents the substrate from moving, which causes a malfunction in the alignment process. Generally, in order to keep the thickness of the liquid crystal layer 103 uniform, the columnar spacers are arranged in a design that avoids the hole structure on the surface of the substrate facing each other. However, during the pre-fixing process, the positional relationship between the array substrate 101 and the opposing substrate 102 is difficult to fit according to the design, and there will be a certain position slip, which will cause the columnar space 1 104 to enter the hole structure. 9. In addition, even if there is no interstitial hole structure 10 of the columnar spacer 104 during the pre-fixing process, there will be columnar spaces when the array is moved horizontally from $ array to the substrate 101 or opposite to the substrate 102 during alignment. The structure of the object 104 / undercut hole is 109, and it is difficult to align after embedding. The 1 ηΛ / 口技 # liquid crystal display device has almost the same structure in each display pixel due to the pixel electrode 105 and the thin-film transistor A 09, and the structure of the pore structure: the element location is also approximately constant. Similarly, on the inner surface of the columnar spaced arrangement / substrate 102, the positional relationship of the columnar hole structure 1 09 corresponding to the display pixel rule 1 becomes ^, almost all of the settings =: , Making the alignment process difficult. The meals are completed based on the problems of the above-mentioned conventional technologies. The purpose is to

Page 11 200415392 V. Description of the invention (4) It is mentioned that the image display device of the substrate interval specified by the columnar spacer, the structure of the embedded hole of the columnar spacer in the pre-fixing process and the alignment process is suppressed. Image display device. In order to achieve the above purpose, the feature of the image display device related to item 1 of the scope of patent application is that the first substrate has a plurality of hole structures on its inner surface, and the plurality of hole structures are arranged according to a specific layout pattern. The second substrate Is arranged opposite to the first substrate, the crystal layer is arranged between the first substrate and the second substrate, and the above-mentioned columnar spacer group is tied to the inner surface of the second substrate, and the pattern is much larger Set the 点 ^ point of the picture type. ^ "Move by columnar spacers placed above 1, less than 2/3 of the total. Different parallel movements" refers to the invention of item 1 of the above-mentioned multi-patent range with different distances and / or directions. The projection pattern of the upper = hole = configuration pattern is fixed by unmade columns; the obstruction is suppressed. -, Α & China may apply for moving substrates in the scope of patent application No. 2 is related to the above-mentioned pore structure is deep! Micron to J, the image shows that the cracking is related to the above invention application patent scope No. 3 related to the above column The number of the spacers is "" The pore structure is not split, which is 3/2 times the number of the L structure of the above invention. 200415392

The invention of the third column of the column_and ”According to the ratio of the columnar layout according to the above, the upper penetration is in the corresponding middle, and the upper is in the Kaidan layer electrode domain. Middle, upper position. Middle and middle In the middle of the upper driving electrode, the spacer-type configuration column of the application can be lowered to the first base of the patent model, and the light shielding device is mounted on the array element of the above patent model patent; Please open the patent list, the majority of the patent list, the ground state of the array, and the potential. The patent base list is the 3 / 2d slab-like spacer of the number of the above-mentioned hole structure, pre-fixed and 2 / of the total number of counterpoints. 3 or less: The structure of the interstitial entrance hole-the related image display device is the above-mentioned invention: ΐ: 2 base ㈣ part of the area is further equipped with a columnar spacer group that suppresses light and light, which is an area that forms a special domain Ξ: 5 Each item has: The image display device of the above invention 4C element is provided with: a switching element; a hole forming center 2 and a pixel electrode are disposed on the level-off element display :: element for electrically connecting the image y Formed on the above-mentioned planarizing layer The area hole structure has been η · guan for a long time. The image display device is the above-mentioned invention, and each government is approximately the same in the display pixel. The two items of the broadcast image display device are the above-mentioned invention. The image display device for the above pixels through the above-mentioned switching element: Γ The above item / Deguan ’s image display device is provided with a common electrode near the pixel electrode of the above invention,

200415392 V. Description of the invention (6) --- Based on the potential difference between the pixel electrode and the common electrode, an electric field parallel to the inner surface of the array substrate is applied to the liquid crystal layer.彳 IV. [Embodiment] An image display device according to an embodiment of the present invention is illustrated. The m scheme is only schematic and different from the real thing. Of course, the drawings may include parts with different dimensional relationships and ratios. (Embodiment 1) First, a video display device according to this embodiment will be described. The structure of the image display device related to the configuration 1 is formed on the opposite ^ 3 surfaces. Most of the columnar spacers define the structure of the array substrate and the opposite substrate according to a specific layout diagram on the inner surface of the array substrate. Most of the columnar spacers on the opposite substrate are arranged in the projection pattern of the hole structure on the surface of the opposite substrate, and the number of the columnar spacers arranged on each pattern is 6 weeks. More than 1 and less than 2/3 of the total. The columnar spacers are arranged on the above pattern. When the image display device according to the first embodiment is pre-fixed and aligned with the Wei Er column substrate and the opposite substrate, the columnar spacers that are simultaneously embedded in the hole structure can be suppressed. The ratio is less than 2/3 of the total. The image display device according to the first embodiment will be described below. As shown in FIG. 1, the image display device according to the first embodiment includes: an array substrate 1, which has a specific wiring structure, and an opposing substrate 2, which is arranged opposite to the array substrate 1. The structure is such that the distance between the array substrate 丨 and the opposing substrate 2 is defined by the columnar spacer 3. Formed on the array substrate 丨 and the opposite substrate

200415392

A liquid crystal layer 4 is arranged in a gap between the two, and a polarizing plate 5 and a polarizing plate 6 are arranged on the outer surface of the array substrate 丨 and the surface of the opposite substrate 2 respectively. The interface between the array substrate i and the liquid crystal layer 4 and the interface between the opposing substrate 2 and the liquid crystal layer 4 are each provided with an alignment film 7 and an alignment film 8. The array substrate 1 includes a specific wiring structure on a substrate. FIG. 2 is a plan view of the structure of the array substrate 1. As shown in FIG. The array substrate 丨 as shown in Figure 2, is presented:

Pixel electrode 9; common electrode 10, which is formed to cover the periphery of the pixel electrode f; a thin film transistor 11, which has switching elements ^, ^ b, and scan lines 12 as the pixel electrode 9, which controls the thin film transistor A driving state of 11; and a signal line 13 that supplies specific electricity through the thin film transistor u to the pixel electrode 9. In order to supply the signal line 13 with electricity, the pixel electrode 9 is electrically connected to the thin film transistor Η. Specifically, the thin film transistor u and the pixel electrode 9 are connected through a hole structure 14 having a contact hole function.

Figure 3 is a sectional view taken along line A-A in Figure 2. As shown in FIG. 3, a planarization layer 18 is interposed between the thin-film electrical crystal 11, the scanning line 12, and the signal line 13 and the pixel electrode 9. The planarizing layer 18 is used to suppress the influence of the potential variation of the wiring structure such as the scanning lines 2 and the signal lines 3 on the potential of the pixel electrode 9, and the film thickness must be about 1 to 4 microns. Therefore, the hole structure electrically connecting the pixel electrode 9 and the thin-film transistor n is “deep to about a micron. As shown in FIG. 2 and FIG. 3, each display pixel on the array substrate 1 has a circuit structure, and this circuit structure is configured. It has a matrix shape. Therefore, there are also a large number of hole structures formed on the array substrate 1, and they are arranged at regular intervals according to a matrix pattern. The scan lines 12 and 2 in FIG.

The operation of the circuit structure on page 15. First self-transistor 11 · Gate electrode, thin film

200415392 V. Description of the invention (8) ^ ---- The transistor 11 becomes 0N. Then, a specific potential is supplied to the thin film transistor signal line 13 in the 0N state, and the specific potential is written to the transistor electrode 9 through the thin film transistor. On the other hand, in order to maintain the common electrode 10 located around the pixel at a substantially constant potential, a potential difference / factor electrode 9 and the common electrode are generated between the pixel electrode and the write bit, that is, between the pixel electrode 9 and the common electrode 10. The system 10 is formed on the array substrate 1 and generates an electric field in a parallel direction on the surface of the array substrate 1 based on the generated potential difference. And the light transmittance changes. Each display pixel advances individually. In this action, the liquid crystal layer that changes in light transmittance from the outside is displayed. , Winter Next, the structure and arrangement pattern of the columnar spacer 3 will be described.桎 妆 物 3 伤 彬 # μ, bit; I large interval base? "Specifically" is formed on the inner surface of the opposite substrate 2 after the photosensitive resin is coated on the inner surface of the opposite substrate 2 and patterned by photolithography. Therefore, the columnar spacer 3 is different from the conventional spherical spacer. When the pattern is used, the pattern of the photomask can be used to achieve almost any layout. The columnar spacer of this embodiment 1 is not limited in structure. Above, with

At β ′ can be used to form a layout pattern on a substrate, and can be used as the columnar spacer of the present embodiment. And FIG. 4 are diagrams showing the arrangement pattern of the columnar space on the inner surface of the opposing substrate 2 and the opposing substrate 2. As shown in FIG. 4, each display of the opposite substrate 2 is provided with an opening portion 19a to an opening portion 19r, and the remaining area is a light shielding portion 20 and a cover. The columnar spacers 3a to the columnar anodes 31 on the inner surface of the opposing substrate 2 are shown in Fig. 4 as a total of 7 ^. The system shown in Figure 4, most dotted areas

Page 16 200415392

The illustrated pattern A is a projection of the arrangement pattern of the hole structure 14 existing on the inner surface of the array substrate 1 onto the opposing substrate 2. In addition, the pattern B shown in most single-dot chain line regions is a projection pattern of the hole structure 14 moved in parallel. However, the pattern C shown in most double-dot chain line regions is obtained by moving the pattern a in parallel only in a direction and / or a different distance from the pattern b. First, the columnar spacers 3a to 31 are formed on the light-shielding portion 20, avoiding the opening portions 19a to 19r, respectively. Because it is arranged on the opening portion 19a to the opening portion 19r, it is possible to prevent the columnar spacers from arranging to the columnar spacers 3 during the alignment process. 1 The orientation of the alignment film 7 disposed on the array substrate 1 is disturbed, resulting in a displayed image. Grade decline. In the first embodiment, the columnar spacers 3 a to 3 丨 are arranged on the pattern in which each of the hole structure 14 layout patterns is moved in parallel. Specifically, the columnar spacers 3a to 3f are arranged according to the pattern B, and the columnar spacers 3g to 3b are arranged according to the pattern 匸. In the image display device according to the first embodiment, a columnar spacer 仏 to a columnar spacer 31 are formed on the inner surface of the opposing substrate 2 in accordance with the pattern shown in FIG. 4. According to the figure, the ratio of the columnar spacers 3 embedded in the hole structure 14 during the pre-fixing process and the alignment process is reduced to less than 丨 / 2, and the influence of the resistance caused by the columnar spacers 3 is suppressed. Bit becomes possible. 5 and 6 are schematic diagrams for explaining the positional relationship between the hole structure 14 existing on the array substrate 1 and the columnar spacers 3 formed on the opposing substrate 2 during the pre-fixing process and the alignment process. . More specifically, Fig. 5 shows the overlapping state of the layout pattern of the hole structure 14 and the pattern β of Fig. 4,

Page 17 200415392 V. Description of the invention (ίο) The figure shows the overlapping state of the layout pattern of the hole structure 14 and the pattern c of FIG. 4. First, the positional relationship between the array substrate 1 and the opposing substrate 2 in the pre-fixing process and the alignment process will be described with reference to FIG. 5. In the case of the fifth figure, because the pattern B of the fourth figure coincides with the layout of the hole structure 14, the columnar spacers 3a to 3f are simultaneously embedded in any one of the hole structure 14a to the hole structure 14r. The columnar spacers 3a to 3f are each formed on the inner surface of the opposing substrate 2 on the pattern B in which the arrangement pattern of the hole structure 14 is moved in parallel. Therefore, in the pre-fixing process and the alignment process, the alignment of the array substrate and the opposing substrate 2 has not yet been completed. The pattern of the pattern B and the hole structure 14 are the same. The pattern is formed at this time. All the columnar spacers 3 a to 3 f on B are embedded in the pore structure. On the other hand, the columnar spacer 3 g to the columnar spacer 31 are not embedded in any one of the hole structure 14a to the hole structure I4r as shown in FIG. 5. As described above, the columnar spacer 3 g to the columnar spacer 31 are formed on the pattern C to which a parallel movement different from the pattern b is applied. Therefore, in the overlapping pattern of the pattern b and the hole structure 14, the columnar spacer 3g to the columnar spacer 3 are located outside the arrangement pattern of the hole structure 14. Therefore, when the array substrate 1 and the opposing substrate 2 are in the positional relationship shown in FIG. 5, the number of the columnar spacers of any one of the hole structure 1 4 a to the hole structure 1 4 r is half of the total number. Next, the case where the array substrate i and the opposing substrate 2 are in the positional relationship shown in FIG. 6 will be described. The state of FIG. 6 is that the columnar spacer 3g to the columnar spacer 3 丨 embeds any one of the hole structure 14a to the hole structure i4r, and the columnar spacer 3 & to the columnar spacer 3f does not embed the hole structure 14a to Any of the hole structures i4r. The case of FIG. 6 is that the positions of the array substrate 1 and the opposing substrate 2 enable the hole structure 1 4a.

Page 18 200415392 V. Description of the invention (11) The layout pattern of the hole structure 14r coincides with the pattern C. Therefore, the columnar spacers 3g formed on the pattern C to the columnar spacers 31 are embedded in the hole structure 14, and the columnar spacers 3a to the columnar spacers formed on the pattern B different from the pattern C are formed. 3 f is located outside the area from the hole structure 1 4 a to the hole structure 1 4 r. In the pre-fixing process and the alignment process, since the array substrate 1 and the opposing substrate 2 are almost in any positional relationship, they can also be in a positional relationship other than those shown in Figs. 5 and 6. In this positional relationship, all of the columnar spacers 3a to 31 are located outside the pore structure 14, and any of the columnar spacers are not embedded in the pore structure 14. The arrangement of the hole structure 14 on the array substrate 1 has already been explained. The arrangement of the columnar spacers 3 on the plate 2 has been designed so that they will not overlap with each other in the official 9-port ΛΑ fixed date guard, and the image display device is officially fixed. The top of the columnar spacer is not embedded in the hole structure 14. However, in the stage of pre-fixing and alignment of the array substrate i and the opposite substrate 2, the target has not been correctly positioned, and it may be combined with ::: column spacer 3 and then entered into the hole structure 14. Therefore, this' == elephant display device is based on the premise of the pre-fixation process and: == 3 part of the hole structure 14, and will be the same as: embedding column path: shape: spacer 3 ratio is reduced to Below a certain value, the value of the resistance caused by the manhole structure 14 of the spacer 3 can be used in the alignment process to the extent that it does not cause problems in practice. Twisting the soil to the consonant = speaking 'is to specify the distribution of the formation of the columnar spacers 3, so that: in the pre-fixing process and the alignment process, the number of the post-hole structure cloth 3 to occupy the columnar spacers 3 Under the state. The number of columnar spacers 3 lost is not equal to 2 / = Riyafia is based on the absolute value, and it is specified by the ratio of 200415392 V. Invention Description (12) The reason is as follows. During the pre-fixing process and the alignment process, pressure is applied in the approach direction between the array substrate and the opposing substrate 2, specifically, the state where the end of the columnar spacer 3 and the surface of the array substrate 1 are in contact with each other. . Therefore, the columnar spacer 3 embedded in the hole structure ie 1 4 is also in a state where a waste force is applied, and the resistance generated in the alignment process f is known to increase with the pressure. On the other hand, during the pre-fixing process and the alignment process, the pressure is applied to the entire surface of the array substrate 1 and the opposing substrate 2 substantially uniformly, and the pressure applied to each columnar spacer 3, that is, the total pressure divided by the columnar interval The value of the number of objects 3. Therefore, the alignment process =, the resistance due to the columnar spacers 3 embedded in the hole structure 14 is not the absolute value of the number with the number of two, but the columnar spacers 3 with the number of the embedment. Increase and become larger. Based on this insight, the present inventors have found that the ratio of the number of columnar spacers 3 to the total number of columnar spacers 3 on the same day is as follows: temple, resistance can be reduced to the point that the alignment process is not actually a problem. Degrees, and complete the structure to get the ratio. : In this embodiment! When the arrangement is to form the columnar spacers 3, the upper door is manufactured. As described above, the columnar spacer 3 is on the opposite substrate 2. Inner surface: Ten: ί = ί Resin and other film-forming structures are formed by the light lithography method to have only the configuration as in the first embodiment. Carefully use this Once you can use the pattern from the top cover, you can use the ancestors, make 1 straight, 1 in ,,, and so on, and use the light of the shadow to implement shape energy 1 ancient M / 4 clothes, etc. can be as usual. Therefore, the image display device related to the shape 1 can be used for precise alignment. The system does not increase the burden on the installation system. (Modifications) Next, the changes in the display of the image display related to the first embodiment will be described. Ml page 20 200415392 5 Description of the invention (13) ___ Examples. The seventh diagram shows an image display device according to a modified example, which is a layout pattern of columnar spaces on the inner surface of the substrate 2. Variation two = f = the opposite image display device is as shown in FIG. 7, the columnar spacers 21 a to 1 ^ The shadow of the Guan satisfies the condition of Embodiment 1, two pairs are formed in pairs / 211. The arrangement position of each pair may be Random, and this becomes: on the two substrates 2. In the example of the compound, a pair of columnar spacers of the same columnar spacer arrangement as in the known technology is formed. "] As can be seen from Figure 7, in this variation, for the projection pattern of the layout pattern of the 14 in the dotted area, the columnar spacers 21 &, Η., 21e, 21g, 21i, 21k belong to the warp The pattern of a specific parallel movement] The spacers 21b, 21d, 2lf, 21h, 21j, and 211 belong to a pattern that is moved in different shapes. In this variation, the cross-sectional area of the columnar spacer is about / used in general Half of the cross-sectional area of the columnar spacer. Μ, that is, the structure of this variation is formed by the columnar spacer 21, and the arrangement pattern of the hole structure 14 is subjected to a parallel movement different from the projection pattern. Most of the patterns. Therefore, as in the first embodiment, the ratio of the columnar spacers of the "diffusion hole structure 14" in the pre-fixing process and the alignment process is suppressed, which can avoid problems in the alignment process. In addition, this variation is based on the arrangement position of the columnar spacers in the conventional structure. Two columnar spacers with a half cross-sectional area are arranged. The distribution of the columnar spacers under the macroscopic view can be regarded as approximately the same as the conventional image display device. Therefore, after the completion of the image display device, For optimal distribution of the conventional column spacer configuration, means to have the same characteristics of a conventional image after completion of the display should be arranged pattern of columnar spacers, is to be considered after the completion of the image significantly

Page 21 200415392 V. Description of the invention (14) Depending on the Λ characteristics. Therefore, when columnar spacers are configured to meet the requirements of "~ + and ΓΤ pieces, the image display device after completion of the conditions is as follows: ίί the design of the columnar spacer configuration pattern, sometimes designing cotton In the busy feather example, the columnar spacers with a cross-sectional area of half of the known size can be realized according to the configuration pattern that satisfies the implementation requirements. Advantages of image display devices. (Performance Form 2) The right gate ίi will explain an image display device related to Embodiment 2. Embodiment 2 The image display device is formed such that the number of columnar spacers between the fixed array substrate and the opposite substrate is greater than or equal to the number of holes in the array substrate. With this structure, during the pre-fixing process and the alignment process, the ratio of the columnar spacers of the pore structure 4 to the total number is suppressed to 2/3. I band = the basic structure and practicality of the image display device related to this embodiment 2. = y heart 1 is the same, only the arrangement of the columnar spacers is different from the embodiment ^ i. The image display device is different. Therefore, the configuration diagram of the columnar spacers 51 and the advantages of forming the layout pattern will be described below. Fig. 8 is a schematic diagram of the arrangement pattern of the columnar interval j in the image display device according to the second embodiment. In FIG. 8, the pattern of the dotted area ^ = FIG. 4 ′ is a pattern of a layout pattern of the hole structure existing on the array substrate. The image display device according to the second embodiment, as shown in Fig. 8, is formed with a columnar spacer 3 which is 3/2 times the number of display pixels. The material and method for forming the columnar spacer 22 are the same as those in the first embodiment. In the form 2 of the helmet Benbesch, as shown in FIG. 8, the arrangement pattern of the columnar spacers 22 is ... special control. Most of the columnar spacers are so-called randomly arranged. The following says

Page 22 200415392

It is clear that in the image display device according to the second embodiment, the columnar spacers embedded in the hole structure do not cause an obstacle to the alignment process.

As described above, in the image display device related to the original shape 2, columnar spacers 22 having a number of 3/2 times or more of the hole structure 4 are formed on the inner surface of the opposing substrate 2. In the pre-fixing process and the alignment process, the maximum number of columnar spacers 22 embedded in the hole structure 14 depends on the number of the hole structures 14. There will be no embedding of the columnar spacers 22 with more than 14 hole structures.孔 结构 14。 Hole structure 14. Therefore, when the columnar spacers 22 having more than the hole structure 4 are formed in the second embodiment, it is impossible for all the columnar spacers 22 to be embedded in the hole structure 14 even if all the hole structures 14 have columnar spacers. When 22 is inserted, there are still a certain number of columnar spacers 2 2 without embedded hole structures 1 4. In particular, in the second embodiment, since the columnar spacers 22 are formed as 3/2 or more of the number of the hole structures 14, even when, for example, all the hole structures 14 are embedded by the columnar spacers 22, The ratio of the entered columnar spacers 22 to the total number is also less than 2/3. Therefore, the ~ embedded columnar spacers 22 can actually be used for the alignment process, but can be used for precise 'alignment 0'. From other viewpoints, the image display device related to this embodiment 2 uses 22 spacers. By adjusting the number, it can be explained that the columnar spacers 22 and 2 automatically satisfy the conditions in the first embodiment. That is, it can be explained that, in the second embodiment, the columnar spacers 22 can be arbitrarily arranged, and they can also be arranged on most of the patterns in which the projection patterns of the arrangement pattern of the structure 14 are moved in parallel. It will be described below that the arrangement of the columnar spacers 22 in the second embodiment satisfies the conditions of the first embodiment. The κ extreme case assumes that, in the columnar spacer 2 2, only the pore structure i 4

200415392 V. Description of the invention (16) * --- The number is arranged on the first pattern in which the projection pattern of the hole structure 14 is moved in parallel only by a certain distance, and the rest of the columnar spacers · 22 are disposed in the warp The second pattern moves in parallel at different distances and / or directions. In the second embodiment, since the number of columnar spacers is 22 times the number of holes in the structure 14 or more, the number of columnar spacers arranged on the first pattern is 22 and the number of holes in the structure 14). Less than 2/3. Therefore, the columnar spacers 22 arranged on the first pattern satisfy the conditions of the first embodiment. Therefore, since the columnar door spacers 22 arranged on the second pattern are arranged in addition to the ones on the first pattern, the number of arrangement is less than 1/3 of the total number. Therefore, the columnar spacer 22 disposed on the second pattern also satisfies the conditions of the first embodiment. The arrangement of the columnar spacers 22 is actually not in the same order as above, but is randomly arranged, and the columnar spacers 22 are arranged randomly. Therefore, in fact, the columnar spacers 22 are arranged on most patterns, and at the same time, the ratio of the columnar spacers embedded in the hole structure 14 is lower than the resistance value generated in the alignment process of the above-mentioned example. — In the above, the “inner valley of the present invention has been described by the first embodiment and the second embodiment”, but the present invention is not limited to the above, and relevant industry players should be able to come up with various examples, wheat examples, and the like. For example, in the first and second embodiments, the columnar spacers are formed on the inner surface of the opposing substrate 2, but they may be formed on the array substrate 1. Since there may also be a hole structure on the inner surface of the opposing substrate 2, the ratio of the columnar spacers that penetrate into the hole structure is suppressed, so that the embedded columnar spacers can be prevented from causing obstacles in the alignment process and can be precisely aligned. In the second embodiment and the second embodiment, the hole structure is exemplified by a function having a through hole for electrically connecting the pixel electrode 9 and the thin-film transistor. However, this is only an example at most, and other methods may be considered. Layout of hole structure

Page 24 200415392 V. Description of invention (17). For example, when forming an MVA liquid crystal display device, in order to control the tilt angle of liquid crystal molecules, a concave-convex structure may be provided on the inner surface of the array substrate or the inner surface of the opposite substrate. In order to prevent the columnar spacer from being embedded in the unevenness, the present invention can be adopted. In addition, Embodiment 1 and Embodiment 2 are described with a hole structure provided for each display pixel rule. However, the scope of application of the present invention is not limited to this, and may have a randomly arranged hole structure. When the hole structure is set in any pattern, the configuration pattern of the hole structure can be grasped, and the projected pattern can be moved in parallel to form a majority figure, and a columnar spacer with a specific ratio can be obtained on the pattern. Advantages of the invention. The number of the projected patterns in which the hole structure 14 is arranged and the pattern is moved in parallel is "2" in Embodiment 1. However, if it is 2 or more, columnar spacers 3 can be arranged on any number of patterns. The number of the three columnar spacers formed on each pattern is 1 or more, and may be any number less than 2/3 of the total number of the columnar spacers 3. For example, a pattern equal to the number of columnar spacers 3 may be prepared, and one columnar spacer 3 may be arranged on each pattern. With this structure, during the pre-fixing process and the alignment process, because only a single columnar spacer is embedded in the hole structure 14 at the same time, the resistance generated during the alignment process is negligible. The total number of the columnar spacers 3 formed on the inner surface of the opposing substrate 2 is not necessarily limited in the present invention. The number of the columnar spacers 3 depends on the material forming the columnar spacers 3, the cross-sectional area and height of the columnar spacers 3, and the pressure applied during the formal fixing. When using currently used materials, the total number of columnar spacers 3 generally ranges from 1/3 of the number of display pixels to 丄 A f stone ′. When the present invention is used, it may also be another total number. The present invention is also applicable to, for example, disposing a common electrode, such as

200415392 V. Description of the invention (18) --- On the same substrate, an electric field in the vertical direction of the substrate is applied to the liquid crystal layer. In addition to the so-called In-Piane_Switching image display device, the present invention is also applicable to all image display devices in which a columnar spacer is formed on one substrate and another substrate has a specific layout pattern. As explained above, according to the present invention, on the second substrate, the projection patterns of the hole structure arrangement pattern are arranged on the pattern with different parallel movements by more than 1 each, and less than 2/3 of the total columnar spacers, During the pre-fixing process and the alignment process of the first substrate and the second substrate, the ratio of the columnar spacers simultaneously embedded in the hole structure can be reduced, and the effect of hindering the movement of the substrate during the alignment process can be suppressed. / Furthermore, according to the present invention, the number of the columnar spacers arranged on the second substrate is more than 3/2 times the number of the hole structure. The columnar spacers are arranged in an arbitrary layout pattern, and during the pre-fixing process and alignment In the process, the effect of suppressing the ratio of the embedded hole structure to less than 2/3 of the total can be achieved.

Page 26 200415392

V. [Brief Description of the Drawings] Figure 1 shows the overall structure of the related image display device. Figure 2 is a top view of the wiring structure on the array substrate. Figure 3 and Figure 2 are cross-sectional views taken along line A-A. Fig. 4 is a plan view showing the arrangement pattern of the columnar spacers formed on the inner surface of the opposing substrate. Figure 5 Pre-fixing process and alignment process

An example of the positional relationship. j i Figure 6 is a schematic diagram of another example of the positional relationship of the array substrate during the pre-fixing process and the alignment process.彳 Substrate ... The middle plate, the figure illustrates the implementation form-the image of W Qiaoguan is 57, and the top view of the columnar spacers on the opposite substrate is shown. Fig. 8 is a plan view showing an arrangement pattern of upper columnar spacers in the shadow mound 1 mound display device according to the second embodiment. The image display category view related to the conventional technology in Figure 9_ 远 1 Π 圆 羽 J: n 社 你 price Youguanxiji / hui 51¾ Opposite chanting Λ •, Chen Zhi's structure through $ 10 Image related to the conventional technology In the image display device during the pre-relief process, the columnar spacers are embedded in the hole structure:

Element symbols: 1, 101 array substrate 2, 102 opposite substrate 3 a to 3 1, 2 1 a to 2 1 1, 2 2, 1 0 4 columnar spacers

Page 27 200415392 Brief description of the drawings 4, 1 0 3 Liquid crystal layer 5, 6 Polarizing plate 7, 8 Orientation film 9, 10 Pixel electrode 1 0 Common electrode 11, 1 0 7 Thin film transistor 1 2 Scan line 1 3 Signal lines 14, 14a to 14r, 109 Hole structure 15 Conductive layer 16 Substrate 1 7 Insulating layer 1 8, 1 0 8 Flattening layer 19a to 19r Opening portion 20 Light shielding portion

Page 28

Claims (1)

ZUU4I ^ jy2 6. Scope of patent application1. An image display device, I for the first substrate, straight inside the surface, and the hole structure is prepared according to a specific layout of the majority of the hole structure, the majority of the majority-words 1 soil The dagger is placed, and the violent plate is arranged opposite to the first-I liquid, and the substrate is disposed opposite to each other; ο α. Α, between the first substrate and the second substrate; The group is formed on the inner surface of the second substrate 丄 ′, the above-mentioned plurality of holes are moved in parallel, and the projections of the arranged patterns are formed by applying different spacers. Columns with more than 1 and less than 2/3 of the total number 2. If the scope of patent application is the first one, the depth of manufacture is more than 1 micron. The image display device according to item 3, wherein the above-mentioned pore structure 3 · The image display device according to item 1 of the scope of application for patent, item ▲ / ▲, wherein the number of the above-mentioned crazy spacers is on the top ^ 4 More than 3/2 times the number of escape holes. 4. If the scope of the application for the patent is the first or the second, you will be the first beauty girl and seven mistakes-I 4 item shirt display device, in which the above soil plate or the first substrate is part of the u $ shading device, The lf77 & domain is further provided with the above-mentioned two or more columnar spacer light regions that suppress the penetration of light. The cluster is formed on the image display substrate corresponding to the above-mentioned cover 5 * such as item 1 or 2 of the patent application scope. Each display pixel is provided with: ~ image, shoulder-free device, wherein the above-mentioned switching element is flat. A layer is formed on the switching element, and a pixel electrode is disposed on the planarization layer. The hole structure is based on an electrical connection between the pixel electrode and the switching element. Page 29 200415392 6. For the purpose of patent application, one by one display pixels are formed in a part of the flattening layer. 6 · If the image display device of the scope of patent application No. 1 or 2, most of the above-mentioned hole structures are set at approximately the same position within the respective display pixels. 7 · The image display device according to item 1 or 2 of the patent application scope, wherein the array substrate further includes: a scanning line to control the driving state of the switching element, and a signal line that supplies the pixel electrode through the switching element. Potential. Port 8: If the image display device according to item 1 or 2 of the patent application scope, wherein the array substrate is further provided with a common electrode near the pixel electrode, according to the above; the potential difference between the pixel electrode and the common electrode is along with the above Array = an electric field is applied to the liquid crystal layer in a direction parallel to the inner surface of the substrate.