WO2007129499A1 - 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
- WO2007129499A1 WO2007129499A1 PCT/JP2007/053219 JP2007053219W WO2007129499A1 WO 2007129499 A1 WO2007129499 A1 WO 2007129499A1 JP 2007053219 W JP2007053219 W JP 2007053219W WO 2007129499 A1 WO2007129499 A1 WO 2007129499A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- display device
- crystal display
- electrode line
- protrusion
- 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
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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 in which RGB is distributed to form a color filter.
- 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.
- a liquid crystal display device of the present invention includes a pair of transparent substrates stacked in parallel, spacer particles holding the pair of transparent substrates at a predetermined interval, A liquid crystal display device comprising a liquid crystal sealed between the pair of transparent substrates, the other side of at least one transparent substrate of the pair of transparent substrates The surface opposite to the transparent substrate is characterized in that an arrangement region in which the spacer particles are to be arranged and a protrusion that surrounds the arrangement region over the entire circumference are formed.
- the spacer particles should be arranged on the surface of at least one of the pair of transparent substrates facing the counterpart transparent substrate. Protrusions that enclose the region over the entire circumference are provided, and the spacer particles are applied together with ink in the arrangement region surrounded by the projections on the one transparent substrate, and the ink The spacer particles are fixed to the arrangement region, and the pair of transparent substrates are overlapped at a predetermined interval by sandwiching the spacer particles. It is characterized by dropping or enclosing liquid crystal in the gap between the transparent substrates.
- the arrangement region where the spacer particles are to be arranged is surrounded by the protrusions over the entire circumference thereof, and therefore, the spacer particles in the arrangement region are arranged in the arrangement region. It is prevented from moving outside.
- FIG. 1 is a partially enlarged plan view of a TFT substrate of Embodiment 1.
- FIG. 2 is an enlarged cross-sectional view taken along line XX of FIG.
- FIG. 3 is a partially enlarged plan view of the CF substrate of the second embodiment.
- FIG. 4 is a cross-sectional view taken along line Y—Y of FIG.
- FIG. 5 is a cross-sectional view taken along the line ZZ in FIG.
- FIG. 6 is a partially enlarged plan view of the TFT substrate of Embodiment 3.
- TFT substrate transparent substrate
- Embodiment 1 of the present invention will be described below with reference to FIGS. 1 and 2.
- FIG. 1 a pair of glass transparent substrates, that is, a TFT substrate 10 and a CF substrate 20 are overlapped in parallel, and spacer particles 31 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 32 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 having a transparent thin plate shape made of ITO (Indium Tin Oxide) is disposed.
- a switching element 14 having a TFT (Thin Film Transistor) force connected to the source electrode line 11 and the gate electrode line 12 is provided at each corner of each lattice frame.
- the gate electrode line 12 is connected to the drive element 14. As shown in Figure 2, TF An insulating film 15 is formed on the surface of the T 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 on the surface of the insulating film 15. 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.
- a 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.
- the black light shielding film 23 defines the colored portion 22.
- a transparent thin plate common electrode 24 made of ITO (Indium 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 on the substrate.
- 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.
- Both the source electrode line 11 and the gate electrode line 12 are arranged in the light shielding region 30.
- An arrangement region 17 for arranging the spacer particles 31 is provided on the surface (surface) of the TFT substrate 10 facing the CF substrate.
- the arrangement region 17 is located on the gate electrode line 12 extending in a band shape, and the planar shape of the arrangement region 17 is a square in which two of the four sides are parallel to the length direction of the gate electrode line 12. ing.
- a protrusion 18 is formed on the surface of the TFT substrate so as to continuously surround the arrangement region 17 along its outer peripheral edge and over the entire periphery.
- the planar shape of the protrusion is a square like the placement area.
- two sides parallel to the gate electrode line 12 are arranged along both side edges of the gate electrode line 12.
- the protrusions 18 are ribs 19 having a square planar shape formed on the surface of the insulating film 15 (that is, a pair of ribs 19 parallel to the length direction of the gate electrode line 12 and the width direction of the gate electrode line 12). It is configured with a pair of ribs 19) parallel (perpendicular to the length direction).
- the cross-sectional shape perpendicular to the length direction of the rib 19 is a trapezoid.
- the arrangement region 17 is arranged on the gate electrode line 12, and the source electrode line 11 overlaps the surface of the gate electrode line 12 (the surface of the insulating film 15).
- the rib 19 is formed of the same kind of material as that of the source electrode line 11. That is, the rib 19 is formed simultaneously with the source electrode line 11 by a photolithography method in the step of forming the source electrode line 11.
- the outer surface (surface and side surfaces) of the rib 19 is covered with the alignment film 16.
- a plurality of spacer particles 31 are arranged in the arrangement region 17 surrounded by the protrusions 18. That is, in the present embodiment, the spacer particles 31 are arranged using the gate electrode line 12 connected to the drive element 14.
- the spacer particles 31 are spheres made of synthetic resin, and the surfaces thereof are coated with an adhesive material (not shown).
- the width dimension of the gate electrode line 12 is 25 to 60 / ⁇ ⁇ , and when the width dimension of the gate electrode line 12 is 2, the length of one side of the arrangement region 17 can be set to about 20 m. it can.
- the diameter of the spacer particle 31 is about 3 m, and the protruding dimension of the protrusion 18 (the height dimension from the surface on which the spacer particle 31 is placed in the arrangement region 17) is about 0. 2 ⁇ m.
- the cross-sectional shape of the protrusion 18 is a trapezoid whose width is reduced by the upward force as with the rib 19, but the width of the upper side of the protrusion 18 (including the alignment film 16) is about 4. O / zm.
- the spacer particles 31 are discharged from the ink jet device (not shown) in a state of being contained in the ink (not shown), and thereby the surface of the arrangement region 17. Painted on. At this time, since one droplet of ink includes a plurality of spacer particles 31, a plurality of spacer particles 31 are applied in one arrangement region 17.
- 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.
- the plurality of spacer particles 31 contained in the ink approach each other while moving on the placement surface of the placement region.
- the arrangement region 17 is surrounded like a fence by the protrusions 18 over the entire circumference, the spacer particles 31 in the arrangement region 17 do not move to the outside of the arrangement region 17. .
- the spacer particles 31 are fixed to the placement surface of the placement area by the adhesive on the surface.
- the TFT substrate 10 and the CF substrate 20 are overlapped (bonded) with the spacer particles 31 sandwiched therebetween. Let's go. Then, the gap (cell gap) between the substrates 10 and 20 is kept constant over the entire region of the substrates 10 and 20 by the spacer particles 31 fixed to the plurality of arrangement regions 17. The boards 10 and 20 are kept parallel with high accuracy. Thereafter, the liquid crystal display device is manufactured by performing a process of dropping or enclosing the liquid crystal 32 in the gap between the substrates 10 and 20 using a liquid crystal dropping device (not shown) or the like.
- the arrangement region 17 in which the spacer particles 31 are to be arranged is surrounded by the protrusions 18 over the entire circumference thereof, so that the coating is applied in the arrangement region 17.
- the spacer particles 31 are prevented from moving out of the arrangement region 17, and the positioning accuracy of the spacer particles 31 is increased.
- the protrusion 18 continuously surrounds the arrangement region 17 over the entire circumference, the movement of the spacer particles 31 to the outside of the arrangement region 17 can be reliably prevented.
- the rib 19 constituting the protrusion 18 can be formed in the same process as the source electrode line 11.
- Embodiment 2 of the present invention will be described with reference to FIGS.
- the spacer particles 31 are arranged only on the CF substrate 20 in place of the TFT substrate 10. Since other configurations are the same as those of the first embodiment, the same configurations are denoted by the same reference numerals, and descriptions of the structure, operation, and effects are omitted.
- the upper surface of the CF substrate 20 is the surface facing the TFT substrate 10.
- the arrangement area 40 is secured in the area corresponding to the black light shielding film 23 in the light shielding area 30 (specifically, the area corresponding to the source electrode line 11), and the planar shape is rectangular. ing.
- the surface of the arrangement region 40 is covered with the alignment film 25, and the spacer particles 31 are fixed to the surface of the alignment film 25.
- the spacer particle 31 has a plurality of The black light shielding film 23 that divides the colored portion 22 is used.
- the arrangement region 40 is surrounded by the protrusion 41 over substantially the entire circumference thereof.
- the protrusion 41 is formed in a substantially rectangular shape by four ribs 42 a and 42 b along the four sides of the arrangement region 41.
- the ribs 42a and 42b are not in contact with each other, and the rectangular shape formed by the protrusions 41 is cut off at the four corners.
- the distance between the ribs 42a and 42b in this interrupted portion is sufficiently smaller than the diameter of the spacer particle 31.
- the rib 42 a is parallel to the length direction of the black light shielding film 23, and the rib 42 b is perpendicular to the length direction of the black light shielding film 23.
- the surfaces of these ribs 42a and 42b are covered with an alignment film 25.
- the ribs 42a and 42b are forces formed on the surface of the common electrode 24 (the surface facing the TFT substrate 10).
- a long and narrow ridge 43 is formed so as to cross the source electrode line 11 at right angles to the length direction and to extend across the colored portion 22.
- the raised portion 43 has an arcuate cross-sectional shape and an arc-shaped surface.
- the raised portion 43 partially raises the alignment film 25 formed so as to overlap the surface of the colored portion 22 (more precisely, the surface of the common electrode 24), and the raised portion 43 is inclined with respect to the CF substrate 20 by the raising. ! Formed to form a cave 44.
- the liquid crystal molecules 32a and 32b disposed on the alignment film 25 the liquid crystal molecules 32a disposed on the region not corresponding to the raised portion 43 and the liquid crystal molecules 32b disposed on the inclined surface 44 are: The orientation of the array is different.
- the ribs 42 a and 42 b are formed of the same type of synthetic resin material as that of the raised portion 43. That is, the ribs 42a and 42b are formed at the same time as the raised portion 43 by the photolithographic method in the step of forming the raised portion 43.
- the rib 42b perpendicular to the length direction of the black light shielding film 23 also serves as a region of the raised portion 43 that crosses the black light shielding film 23. That is, the rib 42b forms a part of the raised portion 43.
- the outer surfaces (surface and side surfaces) of the ribs 42a and 42b are covered with the alignment film 25.
- the rib 42b has the same cross-sectional shape as the raised portion 43, but the rib 42a also has the same cross-sectional shape as the rib 42b and the raised portion 43.
- the cross-sectional shape of each side of the protrusion 41 has a shape having a tapered surface 45 in which the surface of the protrusion 41 is curved in an arch shape and is directed downward toward the arrangement region 40.
- the protrusion 41 has a protrusion dimension (height dimension from the surface on which the spacer particles 31 are placed in the arrangement region 40) of about 1.0 / zm, and the protrusion 41 has a width dimension (orientation).
- the dimension including membrane 16) is about 10. O / zm.
- the protrusion 41 is constituted by the ribs 42a and 42b made of the same material as the raised portion 43. Therefore, the ribs 42a and 42b are formed in the same process as the raised portion 43.
- the cross-sectional shape of the protrusion 41 has a shape having a tapered surface 45 that has a downward slope by facing the arrangement region 40 by curving the surface of the protrusion 41 in an arch shape. Therefore, the spacer particles 31 that have been placed on the protrusion 41 are attracted to the arrangement region 40 by the tapered surface 45, and there is no possibility that the spacer particles 31 remain on the protrusion 41.
- Embodiment 3 embodying the present invention will be described with reference to FIG.
- the arrangement region 50 is provided at a position different from that of the first embodiment. Since other configurations are the same as those of the first embodiment, the same configurations are denoted by the same reference numerals, and descriptions of the structure, operation, and effects are omitted.
- the color filter 21 is configured on the CF substrate 20 by partitioning the plurality of colored portions 22 by the grid-like black light-shielding film 23 (black 'matrix).
- An auxiliary capacitance electrode line 51 connected to the auxiliary capacitance (storage capacitance or additional capacitance) is provided so as to cross the colored portion 22, and an area corresponding to the auxiliary capacitance electrode line 51 is also a light shielding area 30. It has become.
- the arrangement region 50 and the arrangement region 50 are continuously surrounded over the entire circumference.
- a projection 52 having a square shape in plan view is provided. That is, the spacer particles 31 are arranged by using the auxiliary capacitance electrode line 51 arranged so as to cross the colored portion 22.
- the auxiliary capacitance electrode wire 51 arranged so as to cross the colored portion 22 is used.
- the arrangement area may be configured by using an auxiliary capacitance electrode line that does not cross the colored portion 22.
- the protrusion forms a frame shape that continuously surrounds the entire arrangement area, but instead, the protrusion substantially surrounds the outer periphery of the arrangement area. Although it is a form, it may be a discontinuous partly discontinuous form.
- the protrusions have a square frame shape, but the protrusions may have a shape such as a rectangle, a trapezoid, a parallelogram, a circle, an oval, or an ellipse.
- the protrusion is constituted by a pair of ribs parallel to the length direction of the gate electrode line and a pair of ribs parallel to the width direction of the electrode line.
- the protrusion may be constituted by a rib extending obliquely with respect to the length direction of the electrode wire.
- the protrusions may be made of the same type of material as the layer film provided on the TFT substrate other than the force source electrode lines in which the ribs are made of the same type of material as the source electrode lines.
- the cross-sectional shape of the protrusion is trapezoidal, but the cross-sectional shape of the protrusion may be a rectangle, a square, a semicircle, a triangle, or the like.
- the protrusion is formed of the rib of the same material as that of the raised portion.
- the same material as that of the layer film provided on the CF substrate other than the raised portion may be used.
- the cross-sectional shape of the protrusion is an arched shape, but instead, the cross-sectional shape of the protrusion is triangular, trapezoidal, rectangular, square, semicircular, etc. Also good.
- planar shape of the protrusion is a rectangular frame, but the protrusion may be a square, trapezoid, parallelogram, circle, oval, ellipse, or the like.
- the protrusion is configured by arranging four ribs in a substantially rectangular shape with four corners interrupted. Instead, the protrusion continues over the entire circumference of the arrangement region. Make a frame that surrounds you.
- the protrusions (ribs) are formed by photolithography.
- the present invention is not limited to this, and for example, the protrusions (ribs) may be formed by laser processing.
- the arrangement region and the protrusion are arranged on the gate electrode line, the black light shielding film, and the auxiliary capacitance electrode line.
- the arrangement region and the protrusion are arranged on the source electrode line. It ’s good.
- the spacer particles are arranged on only one of the TFT substrate and the CF substrate.
- the spacer particles may be arranged on both the TFT substrate and the CF substrate.
- the spacer particles arranged on the TFT substrate and the spacer particles arranged on the CF substrate are arranged so as not to interfere with each other.
- the present invention can also be applied to a case where the drive element is other than a TFT such as MIM (Metal Insulator Metal).
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- 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800082781A CN101401029B (zh) | 2006-04-28 | 2007-02-21 | 液晶显示装置及其制造方法 |
US12/298,224 US20090122241A1 (en) | 2006-04-28 | 2007-02-21 | Liquid crystal display device and manufacturing method of the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-125657 | 2006-04-28 | ||
JP2006125657A JP2009168832A (ja) | 2006-04-28 | 2006-04-28 | 液晶表示装置及びその製造方法 |
Publications (1)
Publication Number | Publication Date |
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WO2007129499A1 true WO2007129499A1 (ja) | 2007-11-15 |
Family
ID=38667609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/053219 WO2007129499A1 (ja) | 2006-04-28 | 2007-02-21 | 液晶表示装置及びその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090122241A1 (ja) |
JP (1) | JP2009168832A (ja) |
CN (1) | CN101401029B (ja) |
WO (1) | WO2007129499A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101868755B (zh) * | 2007-08-09 | 2012-11-07 | 夏普株式会社 | 液晶面板、液晶显示单元、液晶显示装置、电视接收机 |
KR101296653B1 (ko) | 2007-10-05 | 2013-08-14 | 엘지디스플레이 주식회사 | 액정 표시 장치 및 이의 제조 방법 |
TWI370934B (en) * | 2008-05-08 | 2012-08-21 | Au Optronics Corp | Liquid crystal panel structure and method for manufacturing the same |
KR20110100741A (ko) * | 2010-03-05 | 2011-09-15 | 삼성전자주식회사 | 표시패널 및 그 제조방법 |
JP2013186148A (ja) * | 2012-03-06 | 2013-09-19 | Japan Display West Co Ltd | 液晶表示装置、液晶表示装置の製造方法、および、電子機器 |
TWI645234B (zh) * | 2016-10-25 | 2018-12-21 | 鴻海精密工業股份有限公司 | 液晶顯示面板 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000162607A (ja) * | 1998-11-26 | 2000-06-16 | Sharp Corp | 液晶表示装置およびその製造方法 |
JP2000235188A (ja) * | 1999-02-17 | 2000-08-29 | Hitachi Ltd | 液晶表示装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100209620B1 (ko) * | 1996-08-31 | 1999-07-15 | 구자홍 | 액정 표시 장치 및 그 제조방법 |
KR20020004277A (ko) * | 2000-07-04 | 2002-01-16 | 구본준, 론 위라하디락사 | 액정표시장치 |
JP4282219B2 (ja) * | 2000-11-28 | 2009-06-17 | 三洋電機株式会社 | 画素暗点化方法 |
KR20080096127A (ko) * | 2007-04-27 | 2008-10-30 | 엘지디스플레이 주식회사 | 액정표시장치 및 이의 제조방법 |
-
2006
- 2006-04-28 JP JP2006125657A patent/JP2009168832A/ja active Pending
-
2007
- 2007-02-21 US US12/298,224 patent/US20090122241A1/en not_active Abandoned
- 2007-02-21 WO PCT/JP2007/053219 patent/WO2007129499A1/ja active Application Filing
- 2007-02-21 CN CN2007800082781A patent/CN101401029B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000162607A (ja) * | 1998-11-26 | 2000-06-16 | Sharp Corp | 液晶表示装置およびその製造方法 |
JP2000235188A (ja) * | 1999-02-17 | 2000-08-29 | Hitachi Ltd | 液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2009168832A (ja) | 2009-07-30 |
CN101401029A (zh) | 2009-04-01 |
US20090122241A1 (en) | 2009-05-14 |
CN101401029B (zh) | 2011-04-27 |
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