JPH0625833B2 - LCD panel - Google Patents
LCD panelInfo
- Publication number
- JPH0625833B2 JPH0625833B2 JP59211665A JP21166584A JPH0625833B2 JP H0625833 B2 JPH0625833 B2 JP H0625833B2 JP 59211665 A JP59211665 A JP 59211665A JP 21166584 A JP21166584 A JP 21166584A JP H0625833 B2 JPH0625833 B2 JP H0625833B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal panel
- glass
- insulating substrate
- strength
- 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.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 77
- 239000000758 substrate Substances 0.000 claims description 63
- 239000011521 glass Substances 0.000 claims description 39
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 14
- 239000010409 thin film Substances 0.000 claims description 13
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 12
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 13
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 8
- 239000005297 pyrex Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 229920006332 epoxy adhesive Polymers 0.000 description 5
- 238000005304 joining Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000005388 borosilicate glass Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000502 Li-aluminosilicate Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000174 eucryptite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- ZFZQOKHLXAVJIF-UHFFFAOYSA-N zinc;boric acid;dihydroxy(dioxido)silane Chemical compound [Zn+2].OB(O)O.O[Si](O)([O-])[O-] ZFZQOKHLXAVJIF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液晶パネルに関し、更に詳しくは、一対の基
板間に液晶を挟持してなる液晶パネルの基板の材質に関
するものである。Description: TECHNICAL FIELD The present invention relates to a liquid crystal panel, and more particularly to a material of a substrate of a liquid crystal panel in which liquid crystal is sandwiched between a pair of substrates.
従来の、２枚の絶縁基板にて液晶を挾持してなる液晶パ
ネルは、例えば第２図に示すような絶縁基板材質構成で
あった。第２図は従来の液晶パネルの断面図を示すもの
である。図中２１は石英ガラスよりなる絶縁基板Ａ、２
２は透明薄膜トランジスタ、２３は液晶層、２４はエポ
キシ系接着剤による有機シール、２５はパイレックスガ
ラス（熱膨張係数約３２×１０-7cm／cm／℃の硼硅酸系
ガラス）による絶縁基板Ｂ、２６は偏光板を示す。さら
に第３図は、第２図に示す従来の液晶パネルの概製造工
程を示すブロック線図を示す。第３図において、２７は
絶縁基板Ａ準備、２８は透明薄膜トランジスタ形成、２
９は配向処理、３０は絶縁基板Ｂ準備、３１は配向処
理、３２はシール部の印刷、３３は絶縁基板Ａと絶縁基
板Ｂのシール部接合、３４は液晶の封入、３５は封止を
示す。A conventional liquid crystal panel in which liquid crystal is sandwiched between two insulating substrates has an insulating substrate material configuration as shown in FIG. 2, for example. FIG. 2 shows a sectional view of a conventional liquid crystal panel. In the figure, 21 is an insulating substrate A made of quartz glass, 2
2 is a transparent thin film transistor, 23 is a liquid crystal layer, 24 is an organic seal made of epoxy adhesive, and 25 is an insulating substrate B made of Pyrex glass (borosilicate glass having a thermal expansion coefficient of about 32 × 10 −7 cm / cm / ° C.). , 26 are polarizing plates. Further, FIG. 3 is a block diagram showing a rough manufacturing process of the conventional liquid crystal panel shown in FIG. In FIG. 3, 27 is an insulating substrate A preparation, 28 is a transparent thin film transistor formation, 2
9 is an alignment treatment, 30 is an insulating substrate B preparation, 31 is an alignment treatment, 32 is a seal portion printing, 33 is a seal portion joining between the insulating substrate A and the insulating substrate B, 34 is liquid crystal sealing, and 35 is sealing. .
以下に、第２図及び第３図を用いて従来の液晶パネルの
問題点を指適する。従来の液晶パネルの問題点はそれに
用いる絶縁基板の材質構成にあった。第２図より明らか
なように従来の液晶パネルを構成する２枚の絶縁基板の
うち１枚は、石英ガラスであり、他の１枚はパイレック
スガラスよりなるものである。表１に上記する石英ガラ
スとパイレックスガラスの諸元を示す。The problems of the conventional liquid crystal panel will be described below with reference to FIGS. 2 and 3. The problem of the conventional liquid crystal panel is the material composition of the insulating substrate used for it. As is apparent from FIG. 2, one of the two insulating substrates constituting the conventional liquid crystal panel is made of quartz glass, and the other one is made of Pyrex glass. Table 1 shows the specifications of the above-mentioned quartz glass and Pyrex glass.
第２図に示す従来の液晶パネルの絶縁基板構成の第１の
問題点は、液晶パネルが著しくそることである。 The first problem of the conventional insulating substrate construction of the liquid crystal panel shown in FIG. 2 is that the liquid crystal panel is significantly warped.
第３図に示す工程３３、石英ガラスとパイレックスガラ
スのシール部接合工程においては、液晶パネルに対して
１００℃を超える加熱が行なわれる。ところが、表１に
示されるように、石英ガラスとパイレックスガラスとの
熱膨張係数は著しく異なっている。従って被加熱状態の
基板を接合後、パネルが室温まで冷されると、各基板は
それぞれ固有の熱膨張係数に従って収縮するために液晶
パネルにそりが生じてしまう。In the step 33 shown in FIG. 3, the step of joining the quartz glass and the Pyrex glass at the seal portion, the liquid crystal panel is heated to a temperature higher than 100 ° C. However, as shown in Table 1, the thermal expansion coefficients of quartz glass and Pyrex glass are significantly different. Therefore, if the panels are cooled to room temperature after joining the substrates to be heated, each substrate contracts according to its own coefficient of thermal expansion, so that the liquid crystal panel warps.
次に、第２の問題点は、液晶パネルに強度上の問題が生
じることである。周知のように、石英ガラス，パイレッ
クスガラス，ソーダガラスのような一般ガラスは代表的
な高脆性材料であり、圧縮応力には比較的強いが、引張
応力には極めて弱い。第４図は、第２図に示す液晶パネ
ルが第３図工程３３を経てそった後のガラス内応力状態
を示す。第４図に示すようにガラスがそった場合は、一
面が圧縮応力状態であれば、その反対面は必ず引張応力
状態となり、極めて少ない応力で破壊に至る。また破壊
に至らないまでもガラス内に極めて危険な状態で残留応
力が残存する事となり、液晶パネル固定や落下衝撃など
による機械的外力に対する余力が減少し、実質的に液晶
パネルの強度が減少する。液晶パネルを構成する２枚の
絶縁基板の板厚が薄くなれば薄くなどほど以上の事は顕
著となる。また２枚の絶縁基板の板厚がそう薄くなくて
も、２枚の絶縁基板の接合部の相対反力が増加し、接合
面が剥れやすくなるという問題がある。さらに、２枚の
絶縁基板の熱膨張係数があまりにも異なり、それらを熱
間接合した結果、両絶縁基板がそると両絶縁基板間の隙
間がバラつき、その結果、液晶層の厚みがバラついて液
晶パネルの表示特性を劣化させるという問題点もある。Next, the second problem is that the liquid crystal panel has a problem in strength. As is well known, general glass such as quartz glass, Pyrex glass, and soda glass are typical highly brittle materials, which are relatively strong against compressive stress but extremely weak against tensile stress. FIG. 4 shows the state of stress in the glass after the liquid crystal panel shown in FIG. 2 has been deflected through step 33 in FIG. When the glass is warped as shown in FIG. 4, if one surface is in a compressive stress state, the other surface is always in a tensile stress state, and the glass is broken with very little stress. In addition, residual stress remains in the glass in a very dangerous state even if it does not break, and the surplus force against mechanical external force due to liquid crystal panel fixing or drop impact is reduced, and the liquid crystal panel strength is substantially reduced. . The thinner the two insulating substrates that make up the liquid crystal panel, the thinner the thickness becomes. Further, even if the plate thickness of the two insulating substrates is not so thin, there is a problem that the relative reaction force of the joint portion of the two insulating substrates increases and the joint surface is easily separated. Further, the two insulating substrates have too different coefficients of thermal expansion, and as a result of hot-bonding them, the gap between the two insulating substrates varies when the two insulating substrates are warped. As a result, the thickness of the liquid crystal layer varies and the liquid crystal There is also a problem that the display characteristics of the panel are deteriorated.
従来の液晶パネルの絶縁基板構成の第２の問題点は、石
英ガラスの機械的強度が極めて弱い事である。表１より
明らかなように、石英ガラスの静的曲げ強度は非常に弱
く、衝撃強度はさらに弱い、破壊モードも粉微塵的モー
ドで信頼性にとぼしい。The second problem of the conventional insulating substrate structure of a liquid crystal panel is that the mechanical strength of quartz glass is extremely weak. As is clear from Table 1, the static bending strength of quartz glass is very weak, the impact strength is even weaker, and the fracture mode is also a dusty mode, resulting in poor reliability.
以上に示す、従来の液晶パネルの第１，第２の問題点
は、第２図に示す液晶パネルの絶縁基板構成以外の絶縁
基板構成であっても基本的には同じであり、ちなみにソ
ーダガラスは熱膨張係数，９３．５×１０-7cm／cm／
℃，歪点４７３℃，曲げ強度５kg／mm2以下である。The above-described first and second problems of the conventional liquid crystal panel are basically the same even if the insulating substrate structure other than the insulating substrate structure of the liquid crystal panel shown in FIG. 2 is used. Is the coefficient of thermal expansion, 93.5 × 10 -7 cm / cm /
℃, strain point 473 ℃, bending strength 5kg / mm 2 or less.
また、２枚の絶縁基板のうち１枚が第２図に示すように
透明薄膜トランジスタを搭載している場合、特に多結晶
透明薄膜Ｓｉトランジスタを搭載している場合は、透明
薄膜トランジスタを搭載する工程の都合上、それを搭載
する絶縁基板は石英ガラスのように歪点が高い特殊なも
のでなければならず、潜在的に上記する第１の問題＝熱
膨張係数の差によるソリの問題と、第２の問題＝強度上
の問題が存在するものである。さらに、２枚の絶縁基板
の両方を石英ガラス製にすれば、熱膨張係数の差による
ソリは減少するが、石英ガラスそのものが静的強度，衝
撃強度共に著しく低い為、ほとんど実用的ではない。In addition, when one of the two insulating substrates is mounted with a transparent thin film transistor as shown in FIG. 2, particularly when a polycrystalline transparent thin film Si transistor is mounted, For convenience, the insulating substrate on which it is mounted must be a special one having a high strain point, such as quartz glass, and potentially the above-mentioned first problem = the problem of warpage due to the difference in thermal expansion coefficient and the second problem. Problem 2 = problem with strength exists. Further, if both of the two insulating substrates are made of quartz glass, warpage due to the difference in thermal expansion coefficient is reduced, but since quartz glass itself has remarkably low static strength and impact strength, it is hardly practical.
２枚の絶縁基板のうち１枚が石英ガラスでもなく、また
透明薄膜トランジスタを搭載していないものでも、例え
ば液晶パネルの性格上、液晶パネルが携帯型液晶テレビ
や携帯型計算機に使われている場合は、液晶パネルの静
的強度，衝撃強度は重要なものであり、絶縁基板として
ソーダガラスやアルカリ亜鉛硼硅酸ガラス等の一般のガ
ラスを用いたものでは、液晶パネルを固定する為に特殊
な耐震構造を構じないと期待した強度がでない事があ
る。Even if one of the two insulating substrates is not quartz glass and it is not equipped with a transparent thin film transistor, for example, when the liquid crystal panel is used in a portable liquid crystal television or a portable computer due to the nature of the liquid crystal panel. Is important for the static strength and impact strength of the liquid crystal panel. When using general glass such as soda glass or alkali zinc borosilicate glass as the insulating substrate, the special strength is required to fix the liquid crystal panel. The expected strength may not be achieved without constructing a seismic structure.
上記問題点を解決するために、本発明は、一対の絶縁基
板間に液晶を挾持してなる液晶パネルにおいて、前記絶
縁基板のうち一方の基板は薄膜トランジスタを搭載した
石英ガラスであり、他方の基板は、ＳｉＯ2，Ａｌ2Ｏ3
およびＬｉ2Ｏを主成分とする３成分系の結晶化ガラス
であることを特徴とする。In order to solve the above problems, the present invention provides a liquid crystal panel in which a liquid crystal is sandwiched between a pair of insulating substrates, one of the insulating substrates being quartz glass on which a thin film transistor is mounted, and the other substrate. Is SiO 2 , Al 2 O 3
And a ternary crystallized glass containing Li 2 O as a main component.
以下に本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明による液晶パネルの断面図を示すもので
ある。図中１は石英ガラスよりなる絶縁基板Ａ、２は透
明薄膜トランジスタ、３は液晶層、４はエポキシ系接着
剤による有機シール、５はＳｉＯ2，Ａｌ2Ｏ3，Ｌｉ2Ｏ
３成分系の結晶化ガラスによる絶縁基板Ｂ、６は偏光
板、７は偏光板付反射板、８は液晶パネルに対する入射
および反射光線、９は液晶層内にできる像が、像光板付
反射板上につくる影のできる面を示す。FIG. 1 is a sectional view of a liquid crystal panel according to the present invention. In the figure, 1 is an insulating substrate A made of quartz glass, 2 is a transparent thin film transistor, 3 is a liquid crystal layer, 4 is an organic seal made of an epoxy adhesive, 5 is SiO 2 , Al 2 O 3 , Li 2 O.
Insulating substrate B made of crystallized glass of three-component system, 6 is a polarizing plate, 7 is a reflecting plate with a polarizing plate, 8 is an incident and reflected light beam on the liquid crystal panel, 9 is an image formed in the liquid crystal layer on the reflecting plate with an image light plate. Shows the surface on which shadows are created.
ガラスを制御された条件のもとで再加熱して、多数の微
小な結晶を均一に析出成長させて得られる陶磁器様の多
結晶体を結晶化ガラスという。ガラスが結晶化する時
は、最初にガラス中に核が形成され、その核をもとに結
晶が成長する。Ｌｉ2Ｏが少なく、Ａｌ2Ｏ3の多いＳｉ
Ｏ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ ３成分系ガラスを加熱する
と、熱膨張係数の小さいリチウム・アルミノシリケート
の結晶が析出し、熱膨張係数が小さく、機械的外力や熱
衝撃に強い結晶化ガラスが得られる。加熱温度が９００
℃近辺の比較的低い温度の場合は、β−ユークリプタイ
トが析出成長し、一般的には透明であり、第１図に示す
本発明の液晶パネルでは、絶縁基板ＢとＣと、このβ−
ユーッリプタイトを析出成長させた透明のＳｉＯ2−Ａ
ｌ2Ｏ3−Ｌｉ2Ｏ３成分系結晶化ガラスを用いている。
表２はＳｉＯ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ３成分系結晶化ガラ
スの概略組成の一例を示す。各成分の組成によって、熱
膨張係数や光透過率あるいは引張強度は若干異なるが、
（表３）に上記したＳｉＯ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ３成分
系結晶化ガラスの諸元の一例を示す。A ceramic-like polycrystal obtained by reheating glass under controlled conditions to uniformly deposit and grow a large number of minute crystals is called crystallized glass. When glass crystallizes, nuclei are first formed in the glass, and crystals grow based on the nuclei. Si with a small amount of Li 2 O and a large amount of Al 2 O 3
When O 2 -Al 2 O 3 -Li 2 O 3 system glass is heated, crystals of lithium aluminosilicate having a small coefficient of thermal expansion are deposited, and the coefficient of thermal expansion is small, resulting in crystallization that is strong against mechanical external force and thermal shock. A glass is obtained. Heating temperature is 900
In the case of a relatively low temperature in the vicinity of ° C, β-eucryptite precipitates and grows and is generally transparent. In the liquid crystal panel of the present invention shown in Fig. 1, the insulating substrates B and C and the β −
Transparent SiO 2 -A obtained by depositing and growing Eurillite
L 2 O 3 —Li 2 O 3 component crystallized glass is used.
Table 2 shows an example of the schematic composition of the SiO 2 —Al 2 O 3 —Li 2 O 3 component type crystallized glass. Depending on the composition of each component, the coefficient of thermal expansion, light transmittance or tensile strength is slightly different,
(Table 3) shows an example of specifications of the above-described SiO 2 —Al 2 O 3 —Li 2 O 3 component crystallized glass.
表３より明らかなようにＳｉＯ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ３
成分系結晶化ガラスの熱膨張係数は極めて低く、しかも
石英ガラスに近い為、絶縁基板Ａと絶縁基板Ｂを熱間で
接合しても、液晶パネルにソリは生ぜず、従って液晶パ
ネルは破壊されたり、絶縁基板Ａと絶縁基板Ｂが剥れた
り、また、そうでなくても、絶縁基板内に発生する残留
応力も極めて少なく、液晶パネル固定や、落下衝撃など
による機械外力に対する余力が充分残り、実質的に液晶
パネルの強度が向上する。またソリが小さくなる為、液
晶層の厚みバラツキが減少し、液晶パネルの表示特性も
向上する。 SiO 2 As apparent from Table 3 -Al 2 O 3 -Li 2 O3
The thermal expansion coefficient of the component crystallized glass is extremely low, and since it is close to that of quartz glass, even if the insulating substrate A and the insulating substrate B are hot-bonded, warpage does not occur in the liquid crystal panel, and therefore the liquid crystal panel is destroyed. Or the insulating substrate A and the insulating substrate B are separated, and even if they are not, residual stress generated in the insulating substrate is extremely small, and there is sufficient remaining power against external mechanical force such as liquid crystal panel fixing and drop impact. The strength of the liquid crystal panel is substantially improved. Further, since the warp is small, the thickness variation of the liquid crystal layer is reduced, and the display characteristics of the liquid crystal panel are improved.
また、表３より明らかなように、本発明による液晶パネ
ルに用いるＳｉＯ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ３成分系の結晶
化ガラスは曲げ強度が非常に強く、パイレックスガラス
のそれに比べ約３０％も強い為、この液晶化ガラスと対
で用いられるガラスがいかなる材質、あるいは組成のも
のであっても液晶パネルの絶対強度を向上せしめるもの
である。 As is clear from Table 3, the SiO 2 —Al 2 O 3 —Li 2 O 3 component crystallized glass used in the liquid crystal panel according to the present invention has a very high bending strength, which is about 30% of that of Pyrex glass. Therefore, even if the glass used in pair with the liquid crystal glass is made of any material or composition, the absolute strength of the liquid crystal panel can be improved.
第１図に示す本発明による液晶パネルは、ＳｉＯ2−Ａ
ｌ2Ｏ3−Ｌｉ2Ｏ３成分系結晶化ガラスを反射型液晶パ
ネルに応用した例を示すものであるが、このような反射
型液晶パネルを第１図中の視点１０より見た場合、液晶
パネルによって形成される像は場合によっては、液晶層
そのものの中に形成される像と、これが反射板付偏光板
に影となって映りこの影と液晶層そのものの中の像とが
２重になってみえる事がある。この２重に像が見える事
を解決する最も短的な手段は、第１図中５の絶縁基板Ｂ
の厚さを薄くする事である。本発明による液晶パネルで
は、絶縁基板Ｂの素材として、ＳｉＯ2−Ａｌ2Ｏ3−Ｌ
ｉ2Ｏ３成分系結晶化ガラスを用いている為、液晶パネ
ル絶対強度をそれほど低下させる事なく、絶縁基板Ｂの
厚さを薄くできる利点がある。A liquid crystal panel according to the present invention shown in FIG. 1 is, SiO 2 -A
If While l 2 O 3 -Li 2 O3 component crystallized glass illustrates an example of an application to a reflective liquid crystal panel, seen such a reflective liquid crystal panels from the viewpoint 10 in FIG. 1, the liquid crystal In some cases, the image formed by the panel appears in the liquid crystal layer itself as a shadow on the polarizing plate with a reflection plate, and the shadow and the image in the liquid crystal layer itself overlap. There are things you can see. The shortest means to solve this double image viewing is the insulating substrate B in FIG.
Is to reduce the thickness of. In the liquid crystal panel according to the present invention, the material of the insulating substrate B is SiO 2 —Al 2 O 3 -L.
Since the i 2 O 3 component-based crystallized glass is used, there is an advantage that the thickness of the insulating substrate B can be reduced without significantly lowering the absolute strength of the liquid crystal panel.
第５図は、本発明による液晶パネルの他の一例の断面図
を示す。第５図は透過型液晶パネルである。図中１１は
石英ガラスよりなる絶縁基板Ａ，１２は透明薄板トラン
ジスタ、１３は液晶層、１４はエポキシ系接着剤による
有機シール、１５はＳｉＯ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ ３成
分系の結晶化ガラスによる絶縁基板Ｂ、１６は偏光板、
１７は光源を示す。絶縁基板Ａと絶縁基板Ｂの熱間接合
時におけるソリに対する効果と強度そのものに対する効
果は第１図に示す場合と同じである。FIG. 5 shows a sectional view of another example of the liquid crystal panel according to the present invention. FIG. 5 shows a transmissive liquid crystal panel. In the figure, 11 is an insulating substrate A made of quartz glass, 12 is a transparent thin plate transistor, 13 is a liquid crystal layer, 14 is an organic seal with an epoxy adhesive, and 15 is a SiO 2 —Al 2 O 3 —Li 2 O 3 component system. Insulating substrates B and 16 made of crystallized glass are polarizing plates,
Reference numeral 17 indicates a light source. The effect on warpage and the effect on strength itself during the hot joining of the insulating substrate A and the insulating substrate B are the same as those shown in FIG.
本発明は、一対の絶縁基板間に液晶を挾持してなる液晶
パネルにおいて、前記絶縁基板のうち一方の基板は薄膜
トランジスタを搭載した石英ガラスであり、他方の基板
は、ＳｉＯ2，Ａｌ2Ｏ3およびＬｉ2Ｏを主成分とする３
成分系の結晶化ガラスであるという構成をとることによ
り、液晶パネルのそりを軽減、あるいはなくすことが可
能であり、更に液晶パネルの強度を向上させるという効
果を有する。The present invention provides a liquid crystal panel in which a liquid crystal is sandwiched between a pair of insulating substrates, one of the insulating substrates is quartz glass on which a thin film transistor is mounted, and the other substrate is SiO 2 , Al 2 O 3 And containing Li 2 O as a main component 3
By adopting the constitution that it is a component type crystallized glass, it is possible to reduce or eliminate the warpage of the liquid crystal panel, and further it is possible to improve the strength of the liquid crystal panel.
第１図〜本発明による液晶パネルの一例の断面図。 第２図〜従来の液晶パネルの断面図。 第３図〜液晶パネルの概製造工程を示す図。 第４図〜第２図に示す液晶パネルが第３図工程３３を経
てソリを生じた後のガラス内応力状態を示す図。 第５図〜本発明による液晶パネルの他の一例の断面図。 １……石英ガラスよりなる絶縁基板Ａ ２……透明薄膜トランジスタ ３……液晶層 ４……エポキシ系接着剤による有機シール ５……ＳｉＯ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ３成分系の結晶化ガ
ラスよりなる絶縁基板Ｂ ６……偏光板 ７……偏光板付反射板 ８……液晶パネルに対する入射光及び反射光 ９……液晶層内にできる像が偏光板付反射板上につくる
影のできる面 １０……液晶パネルを見る視点 １１……石英ガラスよりなる絶縁基板Ａ １２……透明薄膜トランジスタ １３……液晶層 １４……エポキシ系接着剤による有機シール １５……ＳｉＯ2−Ａｌ2Ｏ3−Ｌｉ2Ｏ３成分系結晶化ガ
ラスによる絶縁基板Ｂ １６……偏光板 １７……光 源 ２１……石英ガラスよりなる絶縁基板Ａ ２２……透明薄膜トランジスタ ２３……液晶層 ２４……エポキシ系接着剤による有機シール ２５……パイレックスガラスによる絶縁基板Ｂ ２６……偏光板 ２７……絶縁基板Ａ準備 ２８……透明薄膜トランジスタ形成 ２９……配向処理 ３０……絶縁基板Ｂ準備 ３１……配向処理 ３２……シール部印刷 ３３……絶縁基板Ａと絶縁基板Ｂのシール部接合 ３４……液晶の封入 ３５……封 止 ３６……引張応力 ３７……圧縮応力1 to 1 are cross-sectional views of an example of a liquid crystal panel according to the present invention. FIG. 2 is a cross-sectional view of a conventional liquid crystal panel. FIG. 3 is a diagram showing a schematic manufacturing process of a liquid crystal panel. The figure which shows the stress state in glass after the liquid crystal panel shown in FIGS. 4 and 2 warps through the process 33 of FIG. 5 is a cross-sectional view of another example of the liquid crystal panel according to the present invention. 1 ... Insulating substrate A made of quartz glass 2 ... Transparent thin film transistor 3 ... Liquid crystal layer 4 ... Organic seal with epoxy adhesive 5 ... SiO 2 —Al 2 O 3 —Li 2 O 3 component crystallized glass Insulating substrate B 6 ... Polarizing plate 7 ... Reflecting plate with polarizing plate 8 ... Incident light and reflected light on liquid crystal panel 9 ... Surface with shadow formed on image on liquid crystal layer reflecting plate with polarizing plate 10 ...... Viewpoint of liquid crystal panel 11 ・ ・ ・ Insulating substrate A 12 made of quartz glass ・ ・ ・ Transparent thin film transistor 13 …… Liquid crystal layer 14 …… Organic seal with epoxy adhesive 15 …… SiO 2 -Al 2 O 3 -Li 2 Insulating substrate B made of O3 component crystallized glass ... Polarizing plate 17 ... Light source 21 ... Insulating substrate A made of quartz glass 22 ... Transparent thin film transistor 23 ... Liquid crystal layer 24 ... Organic seal with Poxy adhesive 25 …… Insulating substrate B with Pyrex glass 26 …… Polarizing plate 27 …… Preparing insulating substrate A 28 …… Forming transparent thin film transistor 29 …… Aligning treatment 30 …… Preparing insulating substrate B 31 …… Aligning Processing 32 …… Seal part printing 33 …… Seal part joining of insulating substrate A and insulating substrate 34 …… Liquid crystal encapsulation 35 …… Seal 36 …… Tensile stress 37 …… Compressive stress
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−50426（ＪＰ，Ａ) 特開 昭60−122748（ＪＰ，Ａ) 特開 昭50−104118（ＪＰ，Ａ) 特公 昭55−6588（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-59-50426 (JP, A) JP-A-60-122748 (JP, A) JP-A-50-104118 (JP, A) JP-B-55- 6588 (JP, B1)
Claims (1)
晶パネルにおいて、 前記絶縁基板のうち一方の基板は薄膜トランジスタを搭
載した石英ガラスであり、他方の基板は、ＳｉＯ2，Ａ
ｌ2Ｏ3およびＬｉ2Ｏを主成分とする３成分系の結晶化
ガラスであることを特徴とする液晶パネル。1. A liquid crystal panel in which a liquid crystal is sandwiched between a pair of insulating substrates. One of the insulating substrates is quartz glass on which a thin film transistor is mounted, and the other substrate is SiO 2 , A.
A liquid crystal panel, which is a three-component crystallized glass containing l 2 O 3 and Li 2 O as main components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59211665A JPH0625833B2 (en) | 1984-10-09 | 1984-10-09 | LCD panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59211665A JPH0625833B2 (en) | 1984-10-09 | 1984-10-09 | LCD panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6190130A JPS6190130A (en) | 1986-05-08 |
| JPH0625833B2 true JPH0625833B2 (en) | 1994-04-06 |
Family
ID=16609563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59211665A Expired - Fee Related JPH0625833B2 (en) | 1984-10-09 | 1984-10-09 | LCD panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625833B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6179315U (en) * | 1984-10-26 | 1986-05-27 | ||
| JPS63121018A (en) * | 1986-11-10 | 1988-05-25 | Seiko Epson Corp | Liquid crystal picture displaying device |
| JPH0766237B2 (en) * | 1991-03-29 | 1995-07-19 | 岡谷電機産業株式会社 | Display panel manufacturing method |
| JPH0766238B2 (en) * | 1991-06-03 | 1995-07-19 | 岡谷電機産業株式会社 | Display panel manufacturing method |
| JP2556693Y2 (en) * | 1991-10-30 | 1997-12-08 | 三洋電機株式会社 | Liquid crystal display |
| JP4135088B2 (en) * | 2003-07-31 | 2008-08-20 | 日本電気株式会社 | Liquid crystal display device and liquid crystal projector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5950426A (en) * | 1982-09-17 | 1984-03-23 | Seiko Epson Corp | Assembling and press sticking method of liquid crystal display panel |
-
1984
- 1984-10-09 JP JP59211665A patent/JPH0625833B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6190130A (en) | 1986-05-08 |
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| LAPS | Cancellation because of no payment of annual fees |