WO2007111063A1 - 液晶表示装置及びその製造方法 - Google Patents
液晶表示装置及びその製造方法 Download PDFInfo
- Publication number
- WO2007111063A1 WO2007111063A1 PCT/JP2007/053208 JP2007053208W WO2007111063A1 WO 2007111063 A1 WO2007111063 A1 WO 2007111063A1 JP 2007053208 W JP2007053208 W JP 2007053208W WO 2007111063 A1 WO2007111063 A1 WO 2007111063A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- particles
- positioning recess
- liquid crystal
- crystal display
- pair
- Prior art date
Links
Classifications
-
- 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
- G02F1/13392—Gaskets; Spacers; Sealing of cells spacers dispersed on the cell substrate, e.g. spherical particles, microfibres
-
- 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
Definitions
- Liquid crystal display device and manufacturing method thereof
- the present invention relates to a liquid crystal display device and a method for manufacturing the same, and more particularly to a liquid crystal display device that maintains a distance between transparent substrates by spacer particles and a method for manufacturing the same.
- a liquid crystal display device includes a liquid crystal sandwiched between a glass transparent substrate on which a TFT (Thin Film Transistor) is formed and a glass transparent substrate on which a color filter having RGB is formed.
- the thickness of the liquid crystal layer that is, the cell gap
- the cell gap is required to have a uniform value in order to prevent uneven display of the liquid crystal panel.
- spherical spacer particles are arranged between the transparent substrates, for example, as described in Patent Document 1, and the spacing is made uniform over the entire surface of the transparent substrate. The thing of the structure to hold
- Patent Document 1 Japanese Patent Laid-Open No. 2005-10412
- the present invention has been completed based on the above-described circumstances, and an object thereof is to provide a liquid crystal display device in which spacer particles are arranged at desired locations.
- the liquid crystal display device of the present invention includes a pair of transparent substrates, spacer particles that hold the pair of transparent substrates at a predetermined interval, and the pair of transparent substrates.
- a liquid crystal display device including a liquid crystal sealed between transparent substrates, wherein the spacer particles are arranged in a light shielding region of at least one of the pair of transparent substrates.
- An arrangement region is provided, and a positioning recess is formed in the arrangement region so as to be recessed from the surface of the arrangement region. In the positioning recess, the nuclear particles move to the surface of the arrangement region. It is characterized in that it is accommodated in a regulated state, and the spacer particles are arranged in a form adjacent to the core particles on the surface of the arrangement region.
- the arrangement area set in the light-shielding area of at least one of the pair of transparent substrates is recessed from the surface of the arrangement area.
- a plurality of particles are applied together with the ink to a region including the positioning recess in the one transparent substrate, and the ink is evaporated, and the plurality of particles are formed.
- the particles are accommodated in the positioning recesses to form core particles, and the particles remaining on the surface of the arrangement region are attracted to the core particles to form spacer particles, and the pair of transparent particles
- the substrate is overlapped with a predetermined interval by sandwiching the spacer particles, and liquid crystal is dropped or sealed in a gap between the pair of transparent substrates stacked.
- the present invention when a plurality of particles serving as spacer particles or core particles are applied together with ink to an area including a positioning recess by an ink jet ejection device or the like, the ink is evaporated and the droplets are reduced. Along with this, a plurality of particles move toward each other while moving on the surface of the arrangement region, and V, one of the particles is housed in the positioning recess and becomes a core particle.
- the core particles in the positioning recess cannot move out of the positioning recess (surface of the placement area), as the ink droplets become smaller, other particles remaining in the placement area are As it evaporates, the particles are attracted to the core particles, and are arranged adjacent to the core particles on the surface of the arrangement region to become spacer particles. As described above, according to the present invention, since the spacer particles are arranged adjacent to the movement-restricted nuclear particles, the spacer particles are prevented from being arranged outside the predetermined arrangement region.
- FIG. 1 is an enlarged plan view of a TFT substrate (transparent substrate) of Embodiment 1.
- FIG. 2 is a cross-sectional view taken along the line XX of FIG.
- FIG. 3 is a partially enlarged view of the arrangement region in FIG.
- FIG. 4 is a perspective view of an arrangement region.
- FIG. 5 is a partially enlarged sectional view of the second embodiment.
- FIG. 6 is an enlarged plan view of the TFT substrate (transparent substrate) of the third embodiment.
- Embodiment 1 of the present invention will be described below with reference to FIGS. 1 to 4.
- FIG. 1 In the liquid crystal display device of this embodiment, a pair of transparent substrates made of glass, that is, the TFT substrate 10 and the CF substrate 20 are overlapped in parallel, and the spacer particles 35 are interposed between the substrates 10 and 20. Therefore, the gap (cell gap) between the substrates 10 and 20 is kept constant over the entire surface, and the liquid crystal 36 is filled in the gap between the substrates 10 and 20 by dropping or sealing.
- a plurality of source electrode lines 11 are vertically arranged at regular intervals and a plurality of gate electrode lines 12 are arranged.
- a substantially rectangular display electrode 13 in the form of a transparent thin plate made of IT O (Indium Tin Oxide) is arranged.
- a driving element 14 made of TFT (Thin Film Transistor) connected to the source electrode line 11 and the gate electrode line 12 is provided at each corner of each lattice frame.
- an insulating film 15 is formed on the surface of the TFT substrate 10 (the surface facing the CF substrate 20) and the surface of the gate electrode line 12, and the display electrode 13 is formed of the insulating film 15. It is formed on the surface. Further, an alignment film 16 is formed on the surface of the display electrode 13.
- a large number of colored portions 22 of the three primary colors red (R), green (G), and blue (B) are arranged vertically and horizontally.
- the color filter 21 is formed on the surface of the CF substrate 20 facing the TFT substrate 10.
- a black light-shielding film 23 (black 'matrix) is formed.
- a transparent thin plate common electrode 24 made of ITO dndium tin oxide is formed on the surface of the color filter 21 and the black light shielding film 23 (the surface facing the TFT substrate 10).
- An alignment film 25 is formed.
- the lattice-shaped region where the black light shielding film 23 is formed in the CF substrate 20 corresponds to the lattice-shaped wiring region of the source electrode line 11 and the gate electrode line 12 on the TFT substrate 10, and this
- the grid-like region formed by the black light shielding film 23 is a light shielding region 30 that is not involved in image display of the liquid crystal display device.
- An arrangement region 31 and a positioning recess 32 for arranging the spacer particles 35 are provided in the light shielding region 30 of the TFT substrate 10.
- the arrangement region 31 is provided so as to be placed on the surface of the insulating film 15 on the gate electrode line 12.
- the arrangement region 31 as a whole has a rectangular shape that is long in the same direction as the length direction of the gate electrode line 12, and has a constant thickness.
- the arrangement region 31 is formed by the photolithography method simultaneously with the display electrode 13 in the step of forming the display electrode 13. Note that the height of the surface of the arrangement region 31 is substantially the same as the surface of the alignment film 16.
- a positioning recess 32 is formed in the arrangement region 31.
- the positioning recess 32 is formed by recessing the center position in the long side direction and the short side direction.
- the positioning recess 32 is formed by etching, its planar shape is square, and the depth dimension (the step dimension from the surface of the placement region 31 to the bottom of the positioning recess 32) is the diameter of the spacer particle 35. Smaller dimension (for example, about 1Z8 to 1Z5 of the diameter of the spacer particles 35).
- Spacer particles 35 and core particles 34 are spherical particles that are indistinguishable before being arranged, and are made of a synthetic resin, and the surfaces thereof are coated with an adhesive (not shown).
- the spacer particles 35 and the core particles 34 are applied toward the arrangement region 31 by an ink jet coating apparatus (not shown) while being contained in ink (not shown). At this time, the ink droplets are applied within a range including the positioning recess 32.
- the applied ink gradually evaporates while maintaining the state of a single droplet due to surface tension, and the drying proceeds. Therefore, the diameter of the ink droplet gradually decreases.
- a plurality of particles contained in the ink move on the surface of the arrangement region 31 and approach each other, and eventually one particle is positioned in the positioning recess 32. (See Fig. 3 and Fig. 4).
- the particles accommodated in the positioning recesses 32 become the core particles 34 whose upper part protrudes upward from the surface of the arrangement region 31.
- the core particles 34 abut against the bottom surface 32a of the positioning recess 32 and abut against the four sides of the opening edge 32b of the positioning recess 32 in a direction parallel to the surface of the arrangement region 31 (a direction parallel to the TFT substrate 10). Movement is restricted. After the core particles 34 are accommodated in the positioning recesses 32, as the ink droplets become smaller, other particles remaining on the surface of the arrangement region 31 approach the core particles 34, Eventually, the particles that come into contact with the core particles 34 are adjacent to each other) and become the spacer particles 35. When the ink is completely evaporated, the core particle 34 is fixed in the positioning recess 32 by the adhesive on the surface, and the spacer particle 35 is also fixed on the surface of the arrangement region 31 by the adhesive on the surface.
- the TFT substrate 10 and the CF substrate 20 are overlapped with the spacer particles 35 interposed therebetween. Then, the gap (cell gap) between the substrates 10 and 20 is kept constant over the entire area of the substrates 10 and 20 by the spacer particles 35. As a result, both substrates 10 and 20 are kept parallel with high accuracy. Thereafter, the liquid crystal display device is manufactured by performing a process such as dropping or enclosing the liquid crystal 36 in the gap between the substrates 10 and 20.
- the spacer particles 35 are attracted to the nuclear particles 34 whose movement is restricted, so that the spacer particles 35 are outside the predetermined arrangement region 31. It is prevented from being placed on.
- the accommodating position of the nuclear particles 34 in the positioning recess 32 is determined in one place, and the nuclear particle 34 Is inserted in a state in which movement within the positioning recess 32 is restricted, so that the positioning accuracy of the spacer particles 35 is increased.
- Embodiment 2 of the present invention will be described with reference to FIG.
- the spacer particles 35 are arranged on the CF substrate 20 instead of the TFT substrate 10.
- the TFT substrate 10 is superposed on the upper side of the CF substrate 20.
- the arrangement region 40 is secured in the region corresponding to the black light shielding film 23 in the light shielding region 30, and a part of the common electrode 24 and the alignment film 25 in the arrangement region 30 (black light shielding film 23) is etched.
- a positioning recess 41 for accommodating the core particle 34 is formed by cutting out the corresponding portion.
- the spacer particles 35 are fixed to the surface of the alignment film 25.
- symbol is attached
- FIG. 6 shows Embodiment 3 of the present invention.
- the color filter 21 is configured on the CF substrate 20 by dividing the plurality of colored portions 22 by the grid-like black light shielding film 23 (black 'matrix).
- the auxiliary capacity electrode line 50 of the auxiliary capacity (storage capacity or additional capacity) is provided so as to cross the colored portion 22, and the area corresponding to the auxiliary capacity electrode line 50 is also a light shielding area 30.
- an arrangement region 31 having the same positioning recess 32 as in the first embodiment is formed on the auxiliary capacitance electrode line 50 in the light shielding region 30.
- the core particles 34 are fixedly disposed in the positioning recesses 32, and the spacer particles 35 are disposed on the surface of the placement region 3.
- the auxiliary capacitance electrode line 50 is arranged so as to cross the colored portion 22 and the arrangement region 31 and the positioning concave portion 32 are arranged so as to correspond to the colored portion 22, but instead, the colored portion It is also possible to arrange auxiliary capacitance electrode wires 50 that do not cross 22 and arrange the arrangement region 31 and the positioning recess 32 so as not to correspond to the colored portion 22 (so that they are separated from the colored portion 22). ,.
- the positioning recess is formed by photolithography and etching, but the present invention is not limited to this.
- the positioning recess may be formed by laser processing.
- the arrangement region is arranged on the gate electrode line, the black light shielding film, and the auxiliary capacitance electrode line.
- the arrangement area is not limited to this, and may be arranged on the source electrode line.
- the spacer particles are arranged on either the TFT substrate or the CF substrate.
- the spacer particles may be arranged on both the TFT substrate and the CF substrate. In this case, the spacer particles arranged on the TFT substrate and the spacer particles arranged on the CF substrate overlap each other and do not interfere with each other.
- the positioning recess is square.
- the positioning recess is not limited to this, and may be, for example, a rectangle, a circle, an ellipse, or an oval.
- the nuclear particles are brought into contact with the opening edge of the positioning recess so that the positioning position of the nuclear particles in the recess is determined at one place, but within a certain range in the positioning recess.
- the nuclear particles may be arranged at any of the positions.
- one nucleus particle is accommodated in one positioning recess, but a plurality of nucleus particles may be accommodated in one positioning recess.
- the driving element is a TFT. It can also be applied when the drive element is something other than TFT, such as MIM (Metal Insulator Metal).
- a force in which the number of positioning recesses in one arrangement area is one.
- a plurality of positioning recesses may be provided in one arrangement area.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800070515A CN101395528B (zh) | 2006-03-27 | 2007-02-21 | 液晶显示装置及其制造方法 |
JP2008506854A JP4637238B2 (ja) | 2006-03-27 | 2007-02-21 | 液晶表示装置及びその製造方法 |
US12/236,147 US20090103039A1 (en) | 2006-03-27 | 2008-09-23 | Liquid crystal display device and manufacturing method of the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006086610 | 2006-03-27 | ||
JP2006-086610 | 2006-03-27 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/236,147 Continuation US20090103039A1 (en) | 2006-03-27 | 2008-09-23 | Liquid crystal display device and manufacturing method of the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007111063A1 true WO2007111063A1 (ja) | 2007-10-04 |
Family
ID=38540995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/053208 WO2007111063A1 (ja) | 2006-03-27 | 2007-02-21 | 液晶表示装置及びその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090103039A1 (ja) |
JP (1) | JP4637238B2 (ja) |
CN (1) | CN101395528B (ja) |
WO (1) | WO2007111063A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019193856A1 (ja) * | 2018-04-04 | 2019-10-10 | 株式会社ジャパンディスプレイ | 表示装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101296653B1 (ko) * | 2007-10-05 | 2013-08-14 | 엘지디스플레이 주식회사 | 액정 표시 장치 및 이의 제조 방법 |
KR20110100741A (ko) * | 2010-03-05 | 2011-09-15 | 삼성전자주식회사 | 표시패널 및 그 제조방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000235188A (ja) * | 1999-02-17 | 2000-08-29 | Hitachi Ltd | 液晶表示装置 |
JP2001125114A (ja) * | 1999-10-29 | 2001-05-11 | Sekisui Chem Co Ltd | プラズマアドレス液晶表示素子の製造方法及びプラズマアドレス液晶表示素子 |
JP2004145102A (ja) * | 2002-10-25 | 2004-05-20 | Seiko Epson Corp | 液晶装置、液晶装置の製造方法、電子機器 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6738125B2 (en) * | 1999-12-27 | 2004-05-18 | Sharp Kabushiki Kaisha | Liquid crystal display apparatus and method for manufacturing same |
JP4282219B2 (ja) * | 2000-11-28 | 2009-06-17 | 三洋電機株式会社 | 画素暗点化方法 |
TW200506469A (en) * | 2003-06-13 | 2005-02-16 | Sekisui Chemical Co Ltd | Method for manufacturing liquid crystal display |
-
2007
- 2007-02-21 CN CN2007800070515A patent/CN101395528B/zh not_active Expired - Fee Related
- 2007-02-21 JP JP2008506854A patent/JP4637238B2/ja not_active Expired - Fee Related
- 2007-02-21 WO PCT/JP2007/053208 patent/WO2007111063A1/ja active Application Filing
-
2008
- 2008-09-23 US US12/236,147 patent/US20090103039A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000235188A (ja) * | 1999-02-17 | 2000-08-29 | Hitachi Ltd | 液晶表示装置 |
JP2001125114A (ja) * | 1999-10-29 | 2001-05-11 | Sekisui Chem Co Ltd | プラズマアドレス液晶表示素子の製造方法及びプラズマアドレス液晶表示素子 |
JP2004145102A (ja) * | 2002-10-25 | 2004-05-20 | Seiko Epson Corp | 液晶装置、液晶装置の製造方法、電子機器 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019193856A1 (ja) * | 2018-04-04 | 2019-10-10 | 株式会社ジャパンディスプレイ | 表示装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4637238B2 (ja) | 2011-02-23 |
CN101395528A (zh) | 2009-03-25 |
CN101395528B (zh) | 2010-06-09 |
JPWO2007111063A1 (ja) | 2009-08-06 |
US20090103039A1 (en) | 2009-04-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4170693B2 (ja) | 液晶表示装置 | |
EP2485086A1 (en) | Liquid crystal display panel | |
US20120019896A1 (en) | Electrophoretic display device | |
JP6220592B2 (ja) | 液晶表示素子及びその製造方法 | |
US20100328756A1 (en) | Electrophoretic displaying apparatus | |
US8564746B2 (en) | Color filter substrate, method of manufacturing the same, and display panel using the color filter substrate | |
US10054832B2 (en) | Liquid crystal display device | |
JP5538106B2 (ja) | 液晶表示パネル | |
US20130286337A1 (en) | Liquid crystal display device | |
KR20090041337A (ko) | 액정 디스플레이 패널 | |
JP2006023733A (ja) | カラーフィルタ基板およびその製造方法ならびにそれを備えた表示装置 | |
WO2007129499A1 (ja) | 液晶表示装置及びその製造方法 | |
JP2006071750A (ja) | 液晶表示装置 | |
JP4637238B2 (ja) | 液晶表示装置及びその製造方法 | |
EP2806306B1 (en) | Wide-viewing-angle liquid crystal display panel, manufacturing method thereof and display device | |
WO2007122891A1 (ja) | 液晶表示装置及びその製造方法 | |
JP2007108610A (ja) | カラーフィルター及びそれを用いた液晶表示装置とその製造方法 | |
US20080149933A1 (en) | Display panel | |
US8368865B2 (en) | Display panel and method of manufacturing the same | |
JP6616897B2 (ja) | 表示パネル | |
KR20070035145A (ko) | 액정 표시 장치용 컬러필터 기판 및 그 제조방법 | |
JP2007164056A (ja) | 表示装置の製造方法及び表示装置 | |
JP2003202551A (ja) | 液晶表示素子およびその製造方法 | |
JP6050602B2 (ja) | 液晶表示パネル及びその製造方法 | |
TW200949391A (en) | Method for manufacturing liquid crystal device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07714708 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2008506854 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200780007051.5 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07714708 Country of ref document: EP Kind code of ref document: A1 |