JPH03293328A - Production of liquid crystal display panel - Google Patents
Production of liquid crystal display panelInfo
- Publication number
- JPH03293328A JPH03293328A JP9573690A JP9573690A JPH03293328A JP H03293328 A JPH03293328 A JP H03293328A JP 9573690 A JP9573690 A JP 9573690A JP 9573690 A JP9573690 A JP 9573690A JP H03293328 A JPH03293328 A JP H03293328A
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- liquid crystal
- spacer particles
- glass substrate
- particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000002245 particle Substances 0.000 claims abstract description 54
- 125000006850 spacer group Chemical group 0.000 claims abstract description 53
- 239000011521 glass Substances 0.000 claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000004793 Polystyrene Substances 0.000 claims abstract description 5
- 229920002223 polystyrene Polymers 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 11
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 239000003989 dielectric material Substances 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000790 scattering method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、液晶表示パネルの製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing a liquid crystal display panel.
従来の技術
第５図に示すように、液晶表示パネルは一定の液晶層厚
を得るために、その液晶層５中にスペーサー粒子ＩＢを
有しており、液晶層５はシール樹脂４で硝子基板２間に
封止されている。−このスペーサー粒子ＩＢは、２枚の
硝子基板２を張り合わせる工程の前工程において、片側
の硝子基板２上に散布される。その散布方法として硝子
基板２を設置した散布室中に窒素等のガスを用いてスペ
ーサー粒子ＩＢを散乱させる方法（乾式散布法）、スペ
ーサー粒子ＩＢを含有したフロン等の液体を硝子基板に
吹き付ける方法等がある。いずれの方法を用いても、硝
子基板２上に散布されたスペーサー粒子ＩＢの分布は、
透明電極３上においても透明電極３間においても一様で
ある。BACKGROUND ART As shown in FIG. 5, a liquid crystal display panel has spacer particles IB in its liquid crystal layer 5 in order to obtain a constant liquid crystal layer thickness, and the liquid crystal layer 5 is bonded to a glass substrate with a sealing resin 4. It is sealed between the two. - The spacer particles IB are scattered on one side of the glass substrate 2 in a pre-step of pasting the two glass substrates 2 together. The scattering method includes a method of scattering the spacer particles IB using a gas such as nitrogen in a scattering chamber in which the glass substrate 2 is installed (dry scattering method), and a method of spraying a liquid such as chlorofluorocarbon containing the spacer particles IB onto the glass substrate. etc. No matter which method is used, the distribution of spacer particles IB scattered on the glass substrate 2 is as follows:
It is uniform both on the transparent electrode 3 and between the transparent electrodes 3.
発明が解決しようとする課題
しかし、表示領域にスペーサー粒子ＩＢが散布された場
合、スペーサー粒子ＩＢが光を散乱し、暗表示時におい
ても漏れ光となり表示コントラストを低下させ、また、
スペーサー粒子ＩＢを核とした液晶の配向乱れが生じや
すく、表示品位を損なうという問題点があった。更に、
透明電極のない非表示領域からの漏れ光により、表示コ
ントラストが低下するという問題点があった。Problems to be Solved by the Invention However, when spacer particles IB are scattered in the display area, the spacer particles IB scatter light and leak light even during dark display, reducing display contrast.
There was a problem in that the alignment of the liquid crystal centered around the spacer particles IB was easily disturbed and the display quality was impaired. Furthermore,
There was a problem in that the display contrast deteriorated due to light leakage from the non-display area where there was no transparent electrode.
本発明は、表示領域へのスペーサー粒子の散布を防止し
、更に非表示領域における漏れ光を遮蔽することにより
、表示品位を向上せしめることを目的としている。An object of the present invention is to improve display quality by preventing the scattering of spacer particles in a display area and further blocking light leakage in a non-display area.
課題を解決するための手段
上記目的を達成するために本発明の液晶表示パネルの製
造方法は、透明電極をパターンニングした２枚の硝子基
板のうち一方の硝子基板の透明電極を帯電させて、この
透明電極と同符号の電荷を持つスペーサー粒子をこの硝
子基板上に散布し、その後他方の硝子基板と相対向させ
るとともに、この硝子基板間に液晶を挾持し周辺部をシ
ール樹脂で封止するものである。Means for Solving the Problems In order to achieve the above object, the method for manufacturing a liquid crystal display panel of the present invention includes charging the transparent electrode of one of two glass substrates patterned with transparent electrodes, Spacer particles having the same electric charge as the transparent electrode are scattered on this glass substrate, and then the glass substrate is made to face the other glass substrate, and the liquid crystal is sandwiched between the glass substrates and the peripheral part is sealed with a sealing resin. It is something.
作用
上記方法によりスペーサー粒子を散布した場合、スペー
サー粒子は同符号の電位を持つ透明電極とは反発しあう
ために、透明電極のない領域に選択的に散布することが
でき、表示領域上のスペーサー粒子に起因する漏れ光と
配向乱れを防止することができる。Effect When spacer particles are dispersed by the above method, the spacer particles repel the transparent electrodes having the same potential, so they can be selectively dispersed in areas where there are no transparent electrodes, and the spacer particles on the display area repel each other. Light leakage and orientation disturbance caused by particles can be prevented.
実施例
以下、本発明の一実施例について第１図〜第４図の図面
を用いて説明する。第３図に示すようにスペーサー粒子
室７に窒素ガスを吹き付けた時、予めスペーサー粒子室
７中に置かれていた６、５閣φのポリスチレン製スペー
サー粒子１は吹き飛ばされ、硝子製スペーサー粒子管８
を通り、硝子製スペーサー粒子反射板９、さらにスペー
サー粒子反射板１０により反射された後、スペーサー散
布室１１中に散乱される。帯電序列ではポリスチレンは
負に、硝子は正に帯電しやすいため、この時、既にスペ
ーサー粒子１は、スペーサー粒子管８やスペーサー粒子
反射板９．１０との摩擦により、負の電荷をもつ。EXAMPLE Hereinafter, an example of the present invention will be explained using the drawings of FIGS. 1 to 4. As shown in Fig. 3, when nitrogen gas is blown into the spacer particle chamber 7, the polystyrene spacer particles 1 of 6. 8
After being reflected by the glass spacer particle reflection plate 9 and further by the spacer particle reflection plate 10, the particles are scattered into the spacer dispersion chamber 11. In the charging order, polystyrene tends to be negatively charged and glass tends to be positively charged, so at this time, the spacer particles 1 already have a negative charge due to friction with the spacer particle tube 8 and the spacer particle reflection plate 9.10.
散乱されたスペーサー粒子１は、数分後には硝子基板２
上に付着するが、予め硝子基板２の透明電極３に、アー
スにおとした硝子基板設置銅網１２に対して負の電荷を
与えておくと、スペーサー粒子１は、透明電極３には反
発し選択的に非透明電極領域１３に付着する。The scattered spacer particles 1 are transferred to the glass substrate 2 after a few minutes.
However, if the transparent electrode 3 of the glass substrate 2 is given a negative charge in advance to the glass substrate installation copper net 12 which is grounded, the spacer particles 1 will be repelled by the transparent electrode 3. and selectively adheres to non-transparent electrode areas 13.
本実施例により製造された液晶表示パネルの断面図が第
１図である。スペーサー粒子１は透明電極３上には配置
されていない。また第２図に示すように黒色加工された
スペーサー粒子ＩＡを用いれば非表示領域からの漏れ光
を軽減することができ、表示コントラストを向上できる
。FIG. 1 is a cross-sectional view of a liquid crystal display panel manufactured according to this example. Spacer particles 1 are not arranged on transparent electrode 3. Further, as shown in FIG. 2, by using black-treated spacer particles IA, leakage light from non-display areas can be reduced and display contrast can be improved.
第４図に示した他実施例においては、スペーサー粒子管
８Ａは内部がナイロン糸で覆われている。帯電序列では
ナイロンは正に帯電しやすいため、スペーサー粒子１は
、ナイロンとの摩擦によって、負に帯電する。In another embodiment shown in FIG. 4, the spacer particle tube 8A is internally covered with nylon thread. Since nylon tends to be positively charged in the charging order, the spacer particles 1 are negatively charged by friction with the nylon.
発明の効果
以上のように本発明によれば、透明電極上へスペーサー
粒子が配置されないため、表示領域におけるスペーサー
粒子を核とした液晶の配向乱れや、光の散乱が生じない
。また黒色加工されたスペーサー粒子を用いれば非表示
領域における漏れ光を軽減することができ、表示品位の
良好な液晶表示パネルを製造することができる。Effects of the Invention As described above, according to the present invention, since spacer particles are not arranged on the transparent electrode, alignment disorder of the liquid crystal centered on the spacer particles in the display area and light scattering do not occur. Further, by using black-treated spacer particles, leakage of light in non-display areas can be reduced, and a liquid crystal display panel with good display quality can be manufactured.
第１図、第２図はそれぞれ本発明の一実施例により製造
された液晶表示パネルの主要部の断面図、第３図、第４
図はそれぞれ本発明の一実施例のスペーサー粒子散布工
程を示す説明図、第５図は従来の方法により製造された
液晶表示パネルの主要部の断面図である。
１・・・・・・スペーサー粒子、ＩＡ・・・・・・黒色
加工されたスペーサー粒子、２・・・・・・硝子基板、
３・・・・・・透明電極、４・・・・・・シール樹脂、
５・・・・・・液晶層、６・・・・・・液晶配向膜、７
・・・・・・スペーサー粒子室、８・・・・・・スペー
サー粒子管、８Ａ・・・・・・内部がナイロン糸に覆わ
れたスペーサー粒子管、９．１０・・・・・・スペーサ
ー粒子反射板、１１・・・・・・スペーサー粒子散布室
、１２・・・・・・硝子基板設置鋼網、１３・・・・・
・非透明電極領域。FIGS. 1 and 2 are cross-sectional views of the main parts of a liquid crystal display panel manufactured according to an embodiment of the present invention, and FIGS.
The figures are explanatory diagrams showing a spacer particle dispersion process according to an embodiment of the present invention, and FIG. 5 is a sectional view of the main parts of a liquid crystal display panel manufactured by a conventional method. 1...Spacer particles, IA...Black-treated spacer particles, 2...Glass substrate,
3...Transparent electrode, 4...Seal resin,
5...Liquid crystal layer, 6...Liquid crystal alignment film, 7
...Spacer particle chamber, 8... Spacer particle tube, 8A... Spacer particle tube whose inside is covered with nylon thread, 9.10 ... Spacer Particle reflection plate, 11...Spacer particle dispersion chamber, 12...Glass substrate installation steel mesh, 13...
- Non-transparent electrode area.
Claims (5)
うち一方の硝子基板の透明電極を帯電させて、この透明
電極と同符号の電荷を持つスペーサー粒子をこの硝子基
板上に散布し、その後他方の硝子基板と相対向させると
ともに、この硝子基板間に液晶を挾持し周辺部をシール
樹脂で封止することを特徴とする液晶表示パネルの製造
方法。(1) Charge the transparent electrode of one of the two glass substrates patterned with transparent electrodes, scatter spacer particles with the same charge as the transparent electrode on this glass substrate, and then A method for manufacturing a liquid crystal display panel, comprising the steps of: facing the other glass substrate, sandwiching a liquid crystal between the glass substrates, and sealing the peripheral portion with a sealing resin.
サー粒子を帯電させることを特徴とする請求項１記載の
液晶表示パネルの製造方法。(2) The method for manufacturing a liquid crystal display panel according to claim 1, characterized in that the spacer particles are charged by friction between the spacer particles and the dielectric.
あることを特徴とする請求項２記載の液晶表示パネルの
製造方法。(3) The method for manufacturing a liquid crystal display panel according to claim 2, wherein the spacer particles are polystyrene and the dielectric material is glass.
ン系であることを特徴とする請求項２記載の液晶表示パ
ネルの製造方法。(4) The method for manufacturing a liquid crystal display panel according to claim 2, wherein the spacer particles are polystyrene and the dielectric material is nylon.
特徴とする請求項１記載の液晶表示パネルの製造方法。(5) The method for manufacturing a liquid crystal display panel according to claim 1, wherein the spacer particles are black-treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9573690A JPH03293328A (en) | 1990-04-10 | 1990-04-10 | Production of liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9573690A JPH03293328A (en) | 1990-04-10 | 1990-04-10 | Production of liquid crystal display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03293328A true JPH03293328A (en) | 1991-12-25 |
Family
ID=14145769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9573690A Pending JPH03293328A (en) | 1990-04-10 | 1990-04-10 | Production of liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03293328A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2304915A (en) * | 1995-08-17 | 1997-03-26 | Samsung Display Devices Co Ltd | Depositing spacer elements for a liquid crystal display |
| GB2304916A (en) * | 1995-08-11 | 1997-03-26 | Samsung Display Devices Co Ltd | Spacer elements for a lliquid crystal display |
| WO1999045428A1 (en) * | 1998-03-03 | 1999-09-10 | Sekisui Chemical. Co., Ltd. | Liquid crystal display and manufacture thereof |
| US6577373B1 (en) | 1997-06-13 | 2003-06-10 | Sekisui Chemical Co., Ltd. | Liquid crystal display and method of manufacturing the same |
| US6618112B1 (en) * | 1998-03-03 | 2003-09-09 | Sharp Kabushiki Kaisha | Method of scattering fine spacers method of manufacturing liquid crystal display, apparatus for scattering fine spacers with electrostatic control and confinement, and liquid crystal display |
| KR20030087479A (en) * | 2002-05-10 | 2003-11-14 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display and Method for Manufacturing the same |
| US7223817B2 (en) | 1998-09-02 | 2007-05-29 | Kaneka Corporation | Polymer, processes for producing polymer and composition |
-
1990
- 1990-04-10 JP JP9573690A patent/JPH03293328A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2304916A (en) * | 1995-08-11 | 1997-03-26 | Samsung Display Devices Co Ltd | Spacer elements for a lliquid crystal display |
| GB2304915A (en) * | 1995-08-17 | 1997-03-26 | Samsung Display Devices Co Ltd | Depositing spacer elements for a liquid crystal display |
| US6577373B1 (en) | 1997-06-13 | 2003-06-10 | Sekisui Chemical Co., Ltd. | Liquid crystal display and method of manufacturing the same |
| WO1999045428A1 (en) * | 1998-03-03 | 1999-09-10 | Sekisui Chemical. Co., Ltd. | Liquid crystal display and manufacture thereof |
| US6618112B1 (en) * | 1998-03-03 | 2003-09-09 | Sharp Kabushiki Kaisha | Method of scattering fine spacers method of manufacturing liquid crystal display, apparatus for scattering fine spacers with electrostatic control and confinement, and liquid crystal display |
| US6639644B1 (en) * | 1998-03-03 | 2003-10-28 | Sekisui Chemical Co., Ltd. | Liquid crystal display and manufacture thereof with electrostatic control of sprayed spacer particle deposition |
| US6930746B2 (en) | 1998-03-03 | 2005-08-16 | Sekiusi Chemical Co., Ltd. | Method of scattering fine particles, method of manufacturing liquid crystal display, apparatus for scattering fine particles, and liquid crystal display |
| US6961112B2 (en) | 1998-03-03 | 2005-11-01 | Sekisui Chemical Co., Ltd. | Method of scattering fine particles, method of manufacturing liquid crystal display, apparatus for scattering fine particles, and liquid crystal display |
| US7223817B2 (en) | 1998-09-02 | 2007-05-29 | Kaneka Corporation | Polymer, processes for producing polymer and composition |
| KR20030087479A (en) * | 2002-05-10 | 2003-11-14 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display and Method for Manufacturing the same |
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