WO2010146729A1 - 液晶表示素子及びその製造方法 - Google Patents
液晶表示素子及びその製造方法 Download PDFInfo
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- WO2010146729A1 WO2010146729A1 PCT/JP2010/000391 JP2010000391W WO2010146729A1 WO 2010146729 A1 WO2010146729 A1 WO 2010146729A1 JP 2010000391 W JP2010000391 W JP 2010000391W WO 2010146729 A1 WO2010146729 A1 WO 2010146729A1
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- liquid crystal
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2200/00—Printing processes
- B41P2200/10—Relief printing
- B41P2200/12—Flexographic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/50—Screen printing machines for particular purposes
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13396—Spacers having different sizes
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13398—Spacer materials; Spacer properties
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/02—Materials and properties organic material
- G02F2202/022—Materials and properties organic material polymeric
- G02F2202/023—Materials and properties organic material polymeric curable
Definitions
- the present invention relates to a liquid crystal display element provided with a plurality of columnar spacers on one of a pair of substrates to keep a gap between the pair of substrates uniform, and a method for manufacturing the same.
- a liquid crystal display element performs a display function by bonding a pair of glass substrates while keeping a gap constant, filling a liquid crystal material therebetween, and applying an electric signal to the liquid crystal material.
- a gap material such as plastic beads.
- the columnar spacer is also called a photo spacer, and is known to be formed by overlapping colored layers, or formed from a dedicated material such as photosensitive polyimide, photosensitive acrylic resin, or photosensitive colored resin.
- the gap depends on the height of the columnar spacers supporting the pair of substrates. If there is a variation in the height, the gap becomes a variation as it is and the display quality is deteriorated.
- the gap difference at the boundary between the pixel portion and the edge portion is adjusted by the cross-sectional area or the arrangement interval. However, it is still between the plurality of columnar spacers in the same pixel portion or at the same edge portion. If the height varies among a plurality of columnar spacers, the gap cannot be kept constant.
- the present invention has been made in view of such a point, and an object thereof is to prevent display unevenness by keeping a gap between a pair of substrates constant with a simple configuration.
- a height adjusting portion is provided at the tip of the columnar spacer.
- the first or second invention is premised on a liquid crystal display element provided with a plurality of columnar spacers that keep a gap between the pair of substrates uniform on either one of the pair of substrates.
- the columnar spacer includes a height adjusting portion that is easily deformed as compared to other portions of the columnar spacer when the pair of substrates is bonded to the tip of the columnar spacer, which is in contact with the other of the pair of substrates.
- the columnar spacer includes a height adjustment portion at a tip that contacts the other of the pair of substrates, When the pair of substrates are bonded together, the height adjusting portion is deformed, so that the gap is kept uniform.
- the height adjustment portion formed at the tip of the columnar spacer higher than the other columnar spacers When a pair of substrates are bonded together, they first come into contact with the other substrate and easily deform. For this reason, the difference in height between the plurality of columnar spacers is alleviated, and the gap between the pair of substrates is made uniform.
- a step is formed on the base of either surface of the pair of substrates,
- the amount of deformation of the height adjusting portion of the columnar spacer provided in the higher step region is as follows: It is larger than the deformation amount of the height adjusting portion of the columnar spacer provided in the lower step region.
- the height of the columnar spacer provided in the higher step region is equal to the columnar spacer provided in the lower step region. Even when the pair of substrates are bonded together, the height adjusting portion provided at the tip of the columnar spacer having a high height is first brought into contact with the other substrate and deformed, and the difference in level is increased. It becomes almost equal to the height of the columnar spacer provided in the lower region. For this reason, the difference in height between the plurality of columnar spacers is alleviated, and the gap between the pair of substrates is made uniform.
- the height of the height adjusting portion is greater than 0 and 1.0 ⁇ m or less
- the width of the height adjusting portion is greater than 0 and equal to or less than 1 ⁇ 2 of the tip width of the columnar spacer.
- the rigidity of the height adjusting portion and the rigidity of the tip surface of the columnar spacer are increased.
- the rigidity of the height adjustment unit maintained at the minimum height and width and the rigidity of the end face of the columnar spacer Since the difference is kept moderate, the columnar spacers are not crushed more than necessary, and the height adjustment is easy.
- the height adjusting portion is a plurality of protrusions protruding from the tip of the columnar spacer.
- the height adjustment portion by configuring the height adjustment portion with a plurality of projections having a cross-sectional area smaller than the tip of the columnar spacer, the plurality of projections are more easily deformed than the other portions of the columnar spacer, and the columnar spacer Contributes to uniform height.
- the plurality of protrusions are hemispherical.
- the plurality of protrusions are column bodies.
- the above configuration is suitable for molding by photolithography because there is little increase or decrease in cross-sectional area.
- the plurality of protrusions are cones.
- the plurality of protrusions are annular bodies.
- a liquid crystal display element including a plurality of columnar spacers that keeps a gap between the pair of substrates uniform on either one of the pair of substrates
- the above manufacturing method is Prepare a columnar spacer provided with a height adjustment portion at the tip that contacts the other of the pair of substrates, The substrate provided with the columnar spacers is bonded to the other of the pair of substrates while deforming the height adjusting portion to keep the gap uniform.
- the height adjustment unit provided at the tip of the columnar spacer higher than the surrounding columnar spacers
- the substrates are first deformed by coming into contact with the other substrate and deformed until the height becomes equal to that of the other columnar spacers, so that the gap between the pair of substrates is made uniform.
- the columnar spacer In the photolithography exposure process, when the columnar spacer is formed of a negative photosensitive resist, the portion corresponding to the height adjustment portion of the exposure mask is made free of a light-shielding film, and the remaining portion corresponding to the columnar spacer is half-finished.
- the columnar spacer having the height adjusting portion is formed as a permeable membrane or a completely permeable membrane.
- the height adjustment portion can be easily protruded from the tip of the columnar spacer by providing a difference in transmittance and partially adjusting the amount of photosensitive light. Further, when a positive photosensitive resist is used, the complete transmission film and the complete light shielding film in the mask are reversed.
- the height adjusting portion is formed by forming a plurality of concave portions in advance in the protective film of the dry film resist.
- the above configuration it is possible to easily form a desired shape without crafting the portion corresponding to the height adjustment portion of the exposure mask only by providing a plurality of concave portions in advance in the portion corresponding to the height adjustment portion in the protective film.
- the height adjusting portion can be reliably formed at an appropriate position.
- the columnar spacer having the height adjusting portion is formed by forming a plurality of concave portions in advance in a portion corresponding to the tip of the columnar spacer in the printing plate.
- the height adjusting portion is provided on the columnar spacer, and the height adjusting portion is deformed when the pair of substrates are bonded to each other. Display gaps can be prevented by keeping the gap between the substrates constant.
- FIG. 2 is a view corresponding to FIG. 1 showing an edge portion of the liquid crystal display element and its periphery.
- Other embodiment which forms a height adjustment part with a printing system is shown, (a) is a sectional view of a printing plate, (b) is a sectional view of a columnar spacer and its circumference.
- FIG. 3 is a view corresponding to FIG. 2 according to another embodiment.
- FIG. 3 is a view corresponding to FIG. 2 according to another embodiment.
- FIG. 3 is a view corresponding to FIG. 2 according to another embodiment, and
- (a) is a cross-sectional view taken along line Xa-Xa of (b).
- FIG. 1 shows a liquid crystal display element 1 according to an embodiment of the present invention
- the liquid crystal display element 1 includes a pair of substrates 2 and 3.
- the pair of substrates 2 and 3 includes a color filter substrate 2 and an array substrate 3, and a plurality of columnar spacers 4 that maintain a uniform gap G between the pair of substrates 2 and 3 are provided on the color filter substrate 2 side. Is provided.
- a liquid crystal material (not shown) is sealed in the gap G that is uniformly maintained by the columnar spacers 4.
- the columnar spacer 4 has a truncated cone shape, and includes a height adjusting portion 5 at the tip that contacts the array substrate 3.
- the columnar spacer shape any other shape that can form the height adjusting portion on the upper bottom such as a rectangular column or cylinder may be used.
- the columnar spacer 4 is formed by overlapping colored layers, or is a dedicated material such as photosensitive polyimide, photosensitive acrylic resin, photosensitive colored resin, and is formed by photolithography, dry film resist, printing, etc. Its height is 3-10 ⁇ m and its width is 10-50 ⁇ m.
- the height adjusting portion 5 is composed of a plurality of (two in this embodiment) protrusions provided on the flat surface 4 a at the tip of the truncated cone in the columnar spacer 4.
- the projection is formed of a hemisphere 6.
- the height h of the hemisphere 6 is greater than 0 and 1.0 ⁇ m or less (0 ⁇ h ⁇ 1.0 ⁇ m), and the width w1 (outer diameter) of the hemisphere 6 is greater than 0 and columnar. It is 1/2 or less of the tip end width w2 of the spacer 4 (0 ⁇ w1 ⁇ w2 / 2).
- the height adjusting unit 5 has a reduced cross-sectional area compared to the truncated cone part and is less rigid than the truncated cone part, and a pair of substrates 2 and 3 are bonded together. It is easy to deform. The height adjustment portion 5 that protrudes compared to the surroundings is deformed, so that the gap G between the pair of substrates 2 and 3 is kept uniform.
- the base of the surface of the color filter substrate 2 is a pixel portion 2b (region in FIG. 3) inside the peripheral portion (the edge portion 2a, indicated by region B in FIG. 3).
- a step is formed between the surface of the edge portion 2a and the surface of the pixel portion 2b.
- the height of the columnar spacer 4 provided on the edge portion 2a is higher than the height of the columnar spacer 4 provided on the pixel portion 2b.
- the step is assumed to be smaller than a height of 1.0 ⁇ m.
- the amount of deformation of the height adjusting portion 5 in the columnar spacer 4 provided on the edge portion 2a is larger than the amount of deformation of the height adjusting portion 5 of the columnar spacer 4 provided in the pixel portion 2b.
- the gap G between 2 and 3 is kept uniform.
- a plurality of columnar spacers 4 are formed on the color filter substrate 2.
- the columnar spacer 4 and the height adjusting unit 5 are formed by a printing method.
- a main body recess 11 corresponding to a truncated cone is formed in a portion of the columnar spacer 4 in the printing plate 10.
- a plurality of hemispherical recesses 12 are formed in advance in a portion corresponding to the flat surface 4a at the tip.
- the height adjusting portion 5 having a desired shape can be easily formed.
- the plurality of protrusions are hemispherical bodies 6 and thus can be easily molded.
- the color filter substrate 2 having the columnar spacer 4 provided with the height adjusting portion 5 at the tip is bonded to the array substrate 3 while applying pressure. .
- the height of the columnar spacer 4 provided in the edge portion 2a is higher than the height of the columnar spacer 4 provided in the pixel portion 2b.
- the height adjusting portion 5 of the columnar spacer 4 provided on the edge portion 2 a first comes into contact with the array substrate 3. Then, since the hemisphere 6 has lower rigidity than the truncated cone portion, it is crushed and deformed. At this time, the columnar spacer 4 provided in the pixel portion 2b is deformed more greatly than the height adjusting portion 5.
- the height adjustment unit 5 at the tip of the high columnar spacer 4 is It deforms in contact with the surface of the array substrate 3. And a pair of board
- the gap G between the pair of substrates 2 and 3 is kept uniform.
- the height of the height adjuster 5 is greater than 0 and 1.0 ⁇ m or less, and the width w1 of the height adjuster 5 is greater than 0 and less than or equal to 1 ⁇ 2 of the tip width w2 of the columnar spacer 4. (0 ⁇ w1 ⁇ w2 / 2), the difference between the rigidity of the height adjusting portion 5 kept at the minimum height and width and the rigidity of the end face 4a of the columnar spacer 4 was kept moderate. Therefore, height adjustment is easy.
- the uniform gap G is filled with a liquid crystal material.
- the columnar spacer 4 is provided with the height adjusting portion 5, and the height adjusting portion 5 is deformed when the pair of substrates 2 and 3 are bonded together.
- display gaps can be prevented by keeping the gap G between the pair of substrates 2 and 3 constant with a simple configuration.
- Modification 1 of Embodiment— 5 and 6 show an exposure process for forming the liquid crystal display element 1 according to the first modification of the present embodiment, which is different from the above-described embodiment in that the method of forming the height adjusting unit 5 is different.
- the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.
- the columnar spacer is formed by photolithography using a negative photosensitive resist, in the exposure process, the portion 102 corresponding to the height adjusting portion 5 of the exposure mask 101 is made free of a light-shielding film, and the remaining columnar spacer 4 is formed.
- the columnar spacer 4 having the height adjusting portion 5 is formed using the corresponding portion 103 as a semi-permeable membrane or a completely permeable membrane.
- the height adjusting portion 5 can be easily protruded from the tip of the columnar spacer 4 by partially adjusting the amount of light received by providing a difference in transmittance.
- FIG. 7 shows a cross section of a dry film resist 201 for forming the liquid crystal display element 1 according to the second modification of the embodiment of the present invention.
- the columnar spacer 4 and the height adjusting portion 5 are formed by the dry film resist 201. Specifically, for example, it is formed by arranging a plurality of recesses 203 at equal intervals in advance on the protective film 202 of the dry film resist 201.
- the dry film resist 201 is supported by the support film 204.
- the height adjustment portion 5 is formed on the exposure mask 101 side as in the first modification.
- the height adjusting part 5 having a desired shape can be easily and reliably formed at an appropriate position simply by exposing the columnar spacer 4 portion without any work.
- the present invention may be configured as follows with respect to the above embodiment.
- the plurality of protrusions provided on the prismatic spacer 4 are two hemispheres 6, but the number is not limited.
- the plurality of protrusions may be, for example, four quadrangular pyramids 106, or may be four triangular pyramids 206 as shown in FIG.
- the plurality of protrusions are pyramids such as the quadrangular pyramid 106, the triangular pyramid 206, and the cone, the tip is sharper than the hemispherical body 6 or the columnar body, so that it is easy to deform with a small force.
- the optimum height adjusting unit 5 is obtained.
- the height of the protrusion may be greater than 0 and 1.0 ⁇ m or less, and the width may be greater than 0 and 1 ⁇ 2 or less of the tip width of the columnar spacer 4.
- the plurality of protrusions may be a central hemisphere 6 and an annular body 306 surrounding it.
- the hemisphere 6 may be a small annular body 306. In this case, it is possible to obtain the height adjusting portion 5 that can be easily deformed with a simple configuration that can be molded even by photolithography.
- a plurality of protrusions may be used as the pillars.
- the increase / decrease in the cross-sectional area is small, it is suitable for molding by photolithography.
- the shape of the plurality of protrusions is not particularly limited, and is not particularly limited as long as the number is two or more.
- the present invention provides a liquid crystal display element having a plurality of columnar spacers on one of a pair of substrates such as a color filter substrate and an array substrate, and a method for producing the same. Useful for the method.
- Liquid crystal display element Color filter substrate (one of a pair of substrates) 2a Edge (step) 3 Array substrate (the other of a pair of substrates) 4 Columnar spacer 5 Height adjustment part 6 Hemisphere (protrusion) 12 hemispherical recess 101 exposure mask 106 square pyramid (protrusion) 201 Dry film resist 202 Protective film 203 Concave portion 206 Triangular pyramid (protrusion) 306 Toroidal body (projection)
Abstract
Description
又は、上記柱状スペーサは、一対の基板の他方と当接する先端に高さ調整部を備え、
上記一対の基板を貼り合わせたときに、上記高さ調整部が変形することにより、上記ギャップが均一に保たれている。
上記一対の基板のいずれか一方の表面の下地には、段差が形成され、
上記段差の高い方の領域に設けた柱状スペーサの上記高さ調整部の変形量は、
上記段差の低い方の領域に設けた柱状スペーサの上記高さ調整部の変形量よりも大きい。
上記高さ調整部の高さは、0よりも大きくかつ1.0μm以下であり、
上記高さ調整部の幅は、0よりも大きく上記柱状スペーサの先端幅の1/2以下である。
上記高さ調整部は、上記柱状スペーサの先端から突出する複数の突起である。
上記複数の突起は、半球体である。
上記複数の突起は、柱体である。
上記複数の突起は、錐体である。
上記複数の突起は、環状体である。
上記製造方法は、
上記一対の基板の他方と当接する先端に高さ調整部を備える柱状スペーサを用意し、
上記柱状スペーサを設けた基板を上記一対の基板の他方に、上記高さ調整部を変形させながら貼り合わせることにより、上記ギャップを均一に保つ構成とする。
フォトリソグラフィーの露光工程において、柱状スペーサをネガ型感光レジストで形成する場合、露光マスクの上記高さ調整部に対応する部分を遮光膜のない状態とし、残りの上記柱状スペーサに対応する部分を半透過膜又は完全透過膜として上記高さ調整部を有する上記柱状スペーサを形成する。
上記高さ調整部を、ドライフィルムレジストの保護フィルムに予め複数の凹部を形成することで形成する。
印刷版における上記柱状スペーサの先端に対応する部分に予め複数の凹部を形成することで、上記高さ調整部を有する上記柱状スペーサを形成する。
次に、本実施形態にかかる液晶表示素子1の製造方法について説明する。
図5及び図6は、本実施形態の変形例1にかかる液晶表示素子1を形成するための露光工程を示し、高さ調整部5の成形方法が異なる点で上記実施形態と異なる。なお、以下の各変形例では、図1~図3と同じ部分については同じ符号を付してその詳細な説明は省略する。
図7は本発明の実施形態の変形例2にかかる液晶表示素子1を形成するためのドライフィルムレジスト201の断面を示す。
本発明は、上記実施形態について、以下のような構成としてもよい。
2 カラーフィルタ基板(一対の基板の一方)
2a 縁辺部(段差)
3 アレイ基板(一対の基板の他方)
4 柱状スペーサ
5 高さ調整部
6 半球体(突起)
12 半球状凹部
101 露光マスク
106 四角錐(突起)
201 ドライフィルムレジスト
202 保護フィルム
203 凹部
206 三角錐(突起)
306 環状体(突起)
Claims (13)
- 一対の基板のいずれか一方に該一対の基板間のギャップを均一に保つ複数の柱状スペーサを備えた液晶表示素子において、
上記柱状スペーサは、一対の基板の他方と当接する先端に、上記一対の基板を貼り合わせたときに、上記柱状スペーサにおける他の部分と比べて変形しやすい高さ調整部を備えている
ことを特徴とする液晶表示素子。 - 一対の基板のいずれか一方に該一対の基板間のギャップを均一に保つ複数の柱状スペーサを備えた液晶表示素子において、
上記柱状スペーサは、上記一対の基板の他方と当接する先端に高さ調整部を備え、
上記一対の基板を貼り合わせたときに、上記高さ調整部が変形することにより、上記ギャップが均一に保たれている
ことを特徴とする液晶表示素子。 - 請求項1又は2に記載の液晶表示素子において、
上記一対の基板のいずれか一方の表面の下地には、段差が形成され、
上記段差の高い方の領域に設けた柱状スペーサの上記高さ調整部の変形量は、
上記段差の低い方の領域に設けた柱状スペーサの上記高さ調整部の変形量よりも大きい
ことを特徴とする液晶表示素子。 - 請求項1乃至3のいずれか1つに記載の液晶表示素子において、
上記高さ調整部の高さは、0よりも大きくかつ1.0μm以下であり、
上記高さ調整部の幅は、0よりも大きく上記柱状スペーサの先端幅の1/2以下である
ことを特徴とする液晶表示素子。 - 請求項1乃至4のいずれか1つに記載の液晶表示素子において、
上記高さ調整部は、上記柱状スペーサの先端から突出する複数の突起である
ことを特徴とする液晶表示素子。 - 請求項5に記載の液晶表示素子において、
上記複数の突起は、半球体である
ことを特徴とする液晶表示素子。 - 請求項5に記載の液晶表示素子において、
上記複数の突起は、柱体である
ことを特徴とする液晶表示素子。 - 請求項5に記載の液晶表示素子において、
上記複数の突起は、錐体である
ことを特徴とする液晶表示素子。 - 請求項5に記載の液晶表示素子において、
上記複数の突起は、環状体である
ことを特徴とする液晶表示素子。 - 一対の基板のいずれか一方に該一対の基板間のギャップを均一に保つ複数の柱状スペーサを備えた液晶表示素子を製造する方法において、
上記一対の基板の他方と当接する先端に高さ調整部を備える柱状スペーサを用意し、
上記柱状スペーサを設けた基板を上記一対の基板の他方に、上記高さ調整部を変形させながら貼り合わせることにより、上記ギャップを均一に保つ
ことを特徴とする液晶表示素子の製造方法。 - 請求項10に記載の液晶表示素子の製造方法において、
フォトリソグラフィーの露光工程において、露光マスクの上記高さ調整部に対応する部分を遮光膜のない状態とし、残りの上記柱状スペーサに対応する部分を半透過膜又は完全透過膜として上記高さ調整部を有する上記柱状スペーサを形成する
ことを特徴とする液晶表示素子の製造方法。 - 請求項10に記載の液晶表示素子の製造方法において、
上記高さ調整部を、ドライフィルムレジストの保護フィルムに予め複数の凹部を形成することで形成する
ことを特徴とする液晶表示素子の製造方法。 - 請求項10に記載の液晶表示素子の製造方法において、
印刷版における上記柱状スペーサの先端に対応する部分に予め複数の凹部を形成することで、上記高さ調整部を有する上記柱状スペーサを形成する
ことを特徴とする液晶表示素子の製造方法。
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BRPI1014243A BRPI1014243A2 (pt) | 2009-06-16 | 2010-01-25 | dispositivo de tela de cristal líquido e método para a fabricação do mesmo. |
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RU2011152315/28A RU2495464C2 (ru) | 2009-06-16 | 2010-01-25 | Жидкокристаллическое устройство отображения и способ его изготовления |
US13/378,945 US20120086901A1 (en) | 2009-06-16 | 2010-01-25 | Liquid crystal display device and method for manufacturing the same |
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CN103235450B (zh) * | 2013-03-15 | 2015-12-02 | 合肥京东方光电科技有限公司 | 显示面板及其制备方法、掩膜板及其制备方法、显示装置 |
KR20150040648A (ko) * | 2013-10-07 | 2015-04-15 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
CN104238197B (zh) | 2014-07-24 | 2017-06-16 | 合肥鑫晟光电科技有限公司 | 一种隔垫物、显示面板和显示装置 |
US9383609B2 (en) * | 2014-11-14 | 2016-07-05 | Sharp Kabushiki Kaisha | Liquid crystal display device |
CN104898329A (zh) * | 2015-06-24 | 2015-09-09 | 深圳市华星光电技术有限公司 | 用于制造液晶面板的方法 |
CN105093706A (zh) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | 隔垫物、掩模板、显示面板及显示装置 |
CN105259713B (zh) * | 2015-11-20 | 2018-09-14 | 武汉华星光电技术有限公司 | 曲面液晶面板及曲面液晶显示装置 |
KR102343241B1 (ko) * | 2017-07-24 | 2021-12-27 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 제조 방법 |
CN112083606A (zh) * | 2019-06-14 | 2020-12-15 | 夏普株式会社 | 液晶显示装置、以及、液晶显示装置的制造方法 |
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JP5318953B2 (ja) | 2013-10-16 |
US20120086901A1 (en) | 2012-04-12 |
RU2011152315A (ru) | 2013-07-27 |
JPWO2010146729A1 (ja) | 2012-11-29 |
EP2444837A4 (en) | 2014-01-22 |
EP2444837A1 (en) | 2012-04-25 |
BRPI1014243A2 (pt) | 2019-09-24 |
CN102804046A (zh) | 2012-11-28 |
RU2495464C2 (ru) | 2013-10-10 |
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