JPH1083247A - Display device - Google Patents
Display deviceInfo
- Publication number
- JPH1083247A JPH1083247A JP23758496A JP23758496A JPH1083247A JP H1083247 A JPH1083247 A JP H1083247A JP 23758496 A JP23758496 A JP 23758496A JP 23758496 A JP23758496 A JP 23758496A JP H1083247 A JPH1083247 A JP H1083247A
- Authority
- JP
- Japan
- Prior art keywords
- display device
- transparent
- liquid crystal
- touch switch
- optical film
- 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.)
- Granted
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 33
- 230000001070 adhesive effect Effects 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000012790 adhesive layer Substances 0.000 claims abstract description 12
- 125000006850 spacer group Chemical group 0.000 claims abstract description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims description 31
- 239000012788 optical film Substances 0.000 claims description 17
- 239000011521 glass Substances 0.000 abstract description 13
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 241000238413 Octopus Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Position Input By Displaying (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ペン入力などの機
能を有する携帯機器等に使用される表示装置に関する。[0001] 1. Field of the Invention [0002] The present invention relates to a display device used for portable equipment having a function such as pen input.
【０００２】[0002]
【従来の技術】従来、液晶表示装置の上に透明タッチス
イッチを配置する方法として、液晶表示装置の表示面と
透明タッチスイッチ７の入力エリアの裏面を透明接着剤
６で面接着していた。この従来の断面構造を図５〜７に
示す。具体的には、図５は液晶表示装置の端子部が無い
辺の接着構造の断面図であり、図６は液晶表示装置の端
子部がある辺の断面図である。更に、図７には、アイコ
ンシート１１を透明タッチスイッチと液晶表示装置の間
に配置した辺の断面図を示した。2. Description of the Related Art Conventionally, as a method of arranging a transparent touch switch on a liquid crystal display device, a display surface of the liquid crystal display device and a back surface of an input area of the transparent touch switch 7 are surface-bonded with a transparent adhesive 6. This conventional sectional structure is shown in FIGS. Specifically, FIG. 5 is a cross-sectional view of the bonding structure on the side of the liquid crystal display device where no terminal portion is provided, and FIG. 6 is a cross-sectional view of the side of the liquid crystal display device where the terminal portion is provided. FIG. 7 is a sectional view of a side where the icon sheet 11 is disposed between the transparent touch switch and the liquid crystal display device.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、図５に
示す構造において、液晶表示装置上に透明タッチスイッ
チ７を紫外線硬化型等の透明接着剤６により面接着する
場合、透明接着剤６を透明タッチスイッチ７と液晶表示
装置の間に充填し、透明タッチスイッチ７側から紫外線
を照射することにより透明接着剤６を硬化したとき、透
明接着剤６には硬化収縮が発生する。However, in the structure shown in FIG. 5, when the transparent touch switch 7 is surface-bonded to the liquid crystal display device with a transparent adhesive 6 such as an ultraviolet curing type, the transparent adhesive 6 is applied to the transparent touch panel. When the transparent adhesive 6 is cured by filling the space between the switch 7 and the liquid crystal display device and irradiating ultraviolet rays from the transparent touch switch 7 side, the transparent adhesive 6 undergoes curing shrinkage.
【０００４】透明接着剤６が充填された面の偏光板３の
外形は、位置合わせのバラツキや公差を考慮して画面の
可視エリアより大きく切断されて貼り付けられている。
一般的には、偏光板３の外周にはおおよそ２．０ｍｍの
段差部分Ｌがあり、その段差部分Ｌと偏光板３のある部
分では透明接着剤６の層の厚みが異なることとなり、そ
のため、硬化収縮量に違いが生ずる。[0006] The outer shape of the polarizing plate 3 on the surface filled with the transparent adhesive 6 is cut and attached so as to be larger than the visible area of the screen in consideration of variation in alignment and tolerance.
Generally, there is a step portion L of about 2.0 mm on the outer periphery of the polarizing plate 3, and the thickness of the layer of the transparent adhesive 6 is different between the step portion L and a portion where the polarizing plate 3 is provided. There is a difference in the amount of cure shrinkage.
【０００５】したがって、その部分に内部応力が発生
し、液晶層のギャップが変化する。結果的にシール剤５
の内側の周辺に表示むらが発生した。図６に示す液晶表
示装置の端子部の設けられた辺においては、段差部分Ｌ
が更に大きくなり、同様にシール剤５の内側周辺に表示
むらが発生した。Therefore, an internal stress is generated in that portion, and the gap of the liquid crystal layer changes. As a result, sealant 5
Display unevenness occurred around the inside of the. In the side provided with the terminal portion of the liquid crystal display device shown in FIG.
Was further increased, and display unevenness similarly occurred around the inner side of the sealant 5.
【０００６】この表示むらは特にＳＴＮの場合厳しく、
液晶層のギャップがおよそ０．１μｍ変化したときに目
立つようになる。そのため、液晶層のギャップ変化を極
力小さくする構造にする必要がある。更に液晶層のギャ
ップ変化は使用する透明基板の厚みが薄いほど大きくな
る。現状では０．７ｍｍ厚のガラス基板を使用している
が、薄型化に向けて０．５５ｍｍや、０．４ｍｍ厚のガ
ラスが使用されはじめており、表示ムラに対しては、一
段と厳しい条件となってきている。[0006] This uneven display is particularly severe in the case of STN.
It becomes noticeable when the gap of the liquid crystal layer changes by about 0.1 μm. Therefore, it is necessary to have a structure that minimizes the change in the gap of the liquid crystal layer. Further, the change in the gap of the liquid crystal layer increases as the thickness of the transparent substrate used decreases. At present, a glass substrate with a thickness of 0.7 mm is used, but glass with a thickness of 0.55 mm or 0.4 mm has begun to be used for thinning, and even more severe conditions are required for display unevenness. Is coming.
【０００７】また、図７に示すマークを印刷したアイコ
ンシート１１を液晶表示装置と透明タッチスイッチ７の
間に配置した構造では、一般的には、アイコンシート１
１を透明タッチスイッチ７または液晶表示装置の偏光板
３に設け、紫外線硬化型の透明接着剤６によって透明タ
ッチスイッチ７と液晶表示装置を貼り合わせることによ
り形成される。この場合、透明接着剤６を充填する際
に、アイコンシート１１部分に気泡を抱き込んでしまう
問題や、やはりアイコンシート１１部分と偏光板３部分
の硬化収縮量が異なり、周辺に表示むらが発生した。In the structure in which the icon sheet 11 on which the mark shown in FIG. 7 is printed is arranged between the liquid crystal display device and the transparent touch switch 7, the icon sheet 1 is generally used.
1 is provided on the transparent touch switch 7 or the polarizing plate 3 of the liquid crystal display device, and is formed by bonding the transparent touch switch 7 and the liquid crystal display device with an ultraviolet curing type transparent adhesive 6. In this case, when filling the transparent adhesive 6, there is a problem that air bubbles are entrapped in the icon sheet 11 portion, and also the curing shrinkage amount of the icon sheet 11 portion and the polarizing plate 3 portion are different, so that display unevenness occurs in the periphery. did.
【０００８】このように発生する表示むらを解決する手
段のひとつとして、透明接着剤の硬化後の硬さをゲル状
にすることで内部応力を拡散し、表示むらを解決するこ
とが可能である。しかしながらこの方法においては、透
明接着剤の硬化後の硬さをゲル状にするに従い接着力が
落ち、８０℃の高温または、−２０℃の低温での保存で
透明タッチスイッチが剥がれる不良が発生するため、信
頼性を保証することが困難であった。[0008] As one of the means for solving such display unevenness, it is possible to solve the display unevenness by diffusing the internal stress by making the hardness of the transparent adhesive after curing into a gel state. . However, in this method, the adhesive strength decreases as the hardness of the transparent adhesive after curing becomes gel, and a failure occurs in which the transparent touch switch peels off when stored at a high temperature of 80 ° C. or at a low temperature of −20 ° C. Therefore, it was difficult to guarantee reliability.
【０００９】そこで、本発明は、透明タッチスイッチと
液晶表示装置を透明接着剤で貼り合わせた構造におい
て、透明接着剤の硬化後の硬さに関係なく、透明接着剤
の硬化収縮により発生する内部応力が原因の表示むらを
解決することにある。Accordingly, the present invention provides a structure in which a transparent touch switch and a liquid crystal display device are bonded together with a transparent adhesive, regardless of the hardness of the transparent adhesive after curing, due to the internal contraction caused by the curing shrinkage of the transparent adhesive. An object of the present invention is to solve display unevenness caused by stress.
【００１０】[0010]
【問題点を解決するための手段】本問題を解決するため
に、この発明は、液晶表示装置の表示面と透明タッチス
イッチの入力領域の裏面を透明接着剤を充填して紫外線
などの光により硬化して接着してなる表示装置におい
て、光学フイルムの外形寸法は、光学フイルムを貼り付
けている透明基板より小さく、その光学フイルムの外周
の段差寸法を１．０ｍｍ以下の構成にすることで、透明
接着剤層の光学フイルム外周の硬化収縮による内部応力
を低減し、その結果、表示むらを解消した。SUMMARY OF THE INVENTION In order to solve this problem, the present invention is directed to a liquid crystal display device and a rear surface of an input area of a transparent touch switch, which are filled with a transparent adhesive and exposed to light such as ultraviolet rays. In a display device that is cured and adhered, the outer dimensions of the optical film are smaller than the transparent substrate to which the optical film is attached, and the step size of the outer periphery of the optical film is 1.0 mm or less. The internal stress due to the curing shrinkage of the outer periphery of the optical film of the transparent adhesive layer was reduced, and as a result, display unevenness was eliminated.
【００１１】または、光学フイルムの外形を変えず、そ
の光学フイルム外周の同等の位置にスペーサーを配設す
る構造にすることで、接着剤層の厚みを均一にし、硬化
収縮量を違いにより発生する内部応力を解消した。ま
た、文字やアイコン等の絵を表示面に配置する場合は、
光学フイルムが貼り付けられている透明基板上か、もし
くはその光学フイルム上にインクにより印刷することで
接着剤層を均一にすることができる。このようにアイコ
ンシートを無くした構成では、透明接着剤の充填工程に
おいて接着剤の流れる速度が安定し、気泡の抱き込みが
発生しない。また、接着剤層の厚みが均一なので、硬化
収縮量を違いにより発生する内部応力を解消され、表示
むらが発生しない。Alternatively, by providing a structure in which spacers are provided at the same positions on the outer periphery of the optical film without changing the outer shape of the optical film, the thickness of the adhesive layer is made uniform, and the amount of curing shrinkage is caused by the difference. Internal stress has been eliminated. Also, when placing pictures such as characters and icons on the display surface,
The adhesive layer can be made uniform by printing with ink on the transparent substrate to which the optical film is attached, or on the optical film. In such a configuration in which the icon sheet is eliminated, the flow speed of the adhesive in the step of filling the transparent adhesive is stabilized, and no air bubbles are entrapped. In addition, since the thickness of the adhesive layer is uniform, the internal stress generated due to the difference in the amount of curing shrinkage is eliminated, and display unevenness does not occur.
【００１２】[0012]
【発明の実施の形態】表示素子とタッチスイッチの間の
接着層の厚みが均一になるように表示装置を構成する。
例えば、偏光板とガラス基板の段差部分を小さくする、
または、この段差部分に偏光板厚と同等厚のスペーサー
を設置する。このような構成により、透明接着の層の厚
みをほぼ均一にすることができるので、透明接着剤の硬
化時に発生する硬化収縮量がほぼ一定となり、透明接着
剤の内部応力が低減され、表示むらは発生しない。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A display device is constructed so that an adhesive layer between a display element and a touch switch has a uniform thickness.
For example, to reduce the level difference between the polarizing plate and the glass substrate,
Alternatively, a spacer having a thickness equal to the thickness of the polarizing plate is provided at the step. With such a configuration, the thickness of the transparent adhesive layer can be made substantially uniform, so that the amount of curing shrinkage that occurs when the transparent adhesive is cured becomes substantially constant, the internal stress of the transparent adhesive is reduced, and display unevenness occurs. Does not occur.
【００１３】さらに、文字やアイコン等のシンボルを表
示面に設ける場合は、光学フイルムが貼り付けられてい
る透明基板上や光学フイルム上にインクにより印刷する
ことで接着剤層を均一にすることができる。そのため
に、透明接着剤の気泡の抱き込みや、表示むらを解消す
ることができる。Further, when symbols such as characters and icons are provided on the display surface, the adhesive layer is made uniform by printing with ink on a transparent substrate or an optical film to which the optical film is attached. it can. For this reason, it is possible to eliminate the inclusion of bubbles of the transparent adhesive and display unevenness.
【００１４】[0014]
【実施例】以下に本発明の実施例を図面に基づいて説明
する。 （実施例１）図１は本発明の表示装置の実施例１の断面
図である。Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a sectional view of Embodiment 1 of the display device of the present invention.
【００１５】液晶表示装置は０．７ｍｍのガラス基板１
と２の間に６．３μｍの液晶層を形成するように保持さ
れ、０．３２ｍｍの厚みの偏向板３と０．２５ｍｍの厚
みの反射板付き偏向板４が貼り付けられている。偏光板
３は、ガラス基板１の外形に対し、０．８ｍｍの位置に
貼り付けられており、その表面に０．７ｍｍのガラス基
板を用いた透明タッチスイッチ７が透明接着剤６により
接着されている。The liquid crystal display device has a glass substrate 1 of 0.7 mm.
2 and 2, a 6.3 μm liquid crystal layer is formed, and a 0.32 mm thick deflecting plate 3 and a 0.25 mm thick deflecting plate with reflector 4 are attached. The polarizing plate 3 is attached at a position of 0.8 mm with respect to the outer shape of the glass substrate 1, and a transparent touch switch 7 using a 0.7 mm glass substrate is adhered to the surface thereof with a transparent adhesive 6. I have.
【００１６】ここで用いた透明接着剤６の硬化後のショ
アＡによる硬度は１０である。接着剤層は、偏光板３上
で約０．１ｍｍとなり、偏光板３の外周の段差部分Ｌ
は、偏光板厚を含むため約０．４２ｍｍとなる。接着剤
の硬化収縮率が５％のため、偏光板３上で５μｍの収
縮、段差部分では２１μｍの収縮となるが、段差部分Ｌ
を０．８ｍｍとしたことで内部応力が減少し、液晶層に
対し０．１μｍ以下のギャップ変化しか与えない。その
ため、表示むらは発生しない。The hardness of the transparent adhesive 6 used here is 10 due to Shore A after curing. The adhesive layer has a thickness of about 0.1 mm on the polarizing plate 3 and a step L on the outer periphery of the polarizing plate 3.
Is about 0.42 mm because of including the thickness of the polarizing plate. Since the curing shrinkage ratio of the adhesive is 5%, the shrinkage of 5 μm on the polarizing plate 3 and the shrinkage of 21 μm at the stepped portion, but the stepped portion L
Is set to 0.8 mm, the internal stress is reduced, and only a gap change of 0.1 μm or less is given to the liquid crystal layer. Therefore, display unevenness does not occur.
【００１７】（実施例２）図２は、本発明による表示装
置の実施例２を示し、偏光板３の段差部分Ｌにスペーサ
ー８を設置した構成の表示装置である。すなわち、実施
例１のように偏光板３の段差部分Ｌを偏光板３の外形を
大きくすることで削減するのではなく、スペーサー８を
設置することで削減した。スペーサー８は、粘着剤付き
のポリエステルフイルムで総厚が０．３ｍｍで偏光板３
とほぼ同一の厚みである。スペーサーは、透明タッチス
イッチ７を透明接着剤６で接着する前に段差部分Ｌに設
置されても、透明タッチスイッチ７側に設置されておい
てもよい。また、透明接着剤を硬化する前に、隙間に挿
入してもよい。但し、接着剤硬化前に挿入する場合に
は、接着剤の層の厚みに影響する場合があり、表示むら
が出ることがある。(Embodiment 2) FIG. 2 shows Embodiment 2 of the display device according to the present invention, which is a display device having a structure in which a spacer 8 is provided at a step portion L of a polarizing plate 3. That is, the step L of the polarizing plate 3 was not reduced by enlarging the outer shape of the polarizing plate 3 as in Example 1, but was reduced by installing the spacer 8. The spacer 8 is a polyester film with an adhesive having a total thickness of 0.3 mm and a polarizing plate 3.
And the thickness is almost the same. The spacer may be installed on the step portion L before the transparent touch switch 7 is bonded with the transparent adhesive 6, or may be installed on the transparent touch switch 7 side. Before the transparent adhesive is cured, it may be inserted into the gap. However, when the adhesive is inserted before the adhesive is cured, the thickness of the adhesive layer may be affected, and the display may be uneven.
【００１８】また、図３は液晶をドライブするＩＣ９が
実装された端子部にスペーサー８を配置した断面で、基
本的な構成は上記と同様である。ここでは、表示素子の
端子部にＩＣを実装した後、段差部にスペーサー８を配
置し透明タッチスイッチ７を接着して製作した。FIG. 3 is a cross section in which a spacer 8 is arranged at a terminal portion on which an IC 9 for driving a liquid crystal is mounted. The basic configuration is the same as that described above. Here, an IC was mounted on the terminal portion of the display element, and then a spacer 8 was disposed on the step portion, and the transparent touch switch 7 was adhered thereto.
【００１９】ガラス基板の端子部の裏面に偏光板が配置
されていると端子部にＩＣを実装することが困難にな
り、一方、端子部にＩＣを実装した後に偏光板３をガラ
ス基板１に貼り合わせたり、段差部に偏光板３を延長し
て配置することも障害がある。そのため、ガラス基板の
端子部にＩＣが実装された表示素子の場合には、前述し
たような、端子部にＩＣを実装した後で段差部にスペー
サー８を配置し透明タッチスイッチ７を接着する方法が
好ましい。If a polarizing plate is disposed on the back surface of the terminal portion of the glass substrate, it becomes difficult to mount the IC on the terminal portion. On the other hand, after mounting the IC on the terminal portion, the polarizing plate 3 is attached to the glass substrate 1. Laminating or disposing the polarizing plate 3 so as to extend at the stepped portion also poses an obstacle. Therefore, in the case of a display element in which an IC is mounted on a terminal portion of a glass substrate, as described above, after mounting the IC on the terminal portion, the spacer 8 is disposed on the step portion and the transparent touch switch 7 is bonded. Is preferred.
【００２０】このような方法で形成された表示装置の構
成によれば、接着剤層の厚みが均一になり、液晶層への
影響も実施例１同様に低減する。さらに、ＩＣが実装さ
れた部分のガラス基板面がそることにより実装接続部に
発生する接続不良を防ぐことができる。According to the structure of the display device formed by such a method, the thickness of the adhesive layer becomes uniform, and the influence on the liquid crystal layer is reduced as in the first embodiment. Furthermore, it is possible to prevent a connection failure occurring at the mounting connection portion due to the deformation of the glass substrate surface at the portion where the IC is mounted.
【００２１】（実施例３）図４は、アイコンシートを削
減した実施例である。構成は、実施例１と同様に偏光板
３を透明基板３の外形から０．８ｍｍの位置に貼り付け
ている。アイコンマークは、偏光板３を貼り付ける前
に、タコ印刷法により任意の形状のインクをガラス基板
1に転写する。転写されたインク１０の厚みは、約５μ
ｍでその上から偏光板３を貼り付けても、気泡を挟み込
んで外観を損ねることはない。(Embodiment 3) FIG. 4 shows an embodiment in which the number of icon sheets is reduced. The configuration is such that the polarizing plate 3 is attached at a position of 0.8 mm from the outer shape of the transparent substrate 3 as in the first embodiment. Before attaching the polarizing plate 3, the icon mark indicates that an ink of an arbitrary shape is printed on a glass substrate by an octopus printing method.
Transfer to 1. The thickness of the transferred ink 10 is about 5 μ
Even if the polarizing plate 3 is adhered from above with m, the appearance is not impaired by sandwiching bubbles.
【００２２】但し、アイコンシートを使わないことによ
り、液晶表示装置の外形を大きくする必要があり、外形
形状、および重量面でのデメリットはある。印刷する面
はこの他に、下側の透明基板２の表面または、偏光板３
の表面でもよい。However, since the icon sheet is not used, it is necessary to enlarge the outer shape of the liquid crystal display device, and there are disadvantages in the outer shape and weight. The surface to be printed may be the surface of the lower transparent substrate 2 or the polarizing plate 3.
May be the surface.
【００２３】[0023]
【発明の効果】以上説明したように、本発明は透明タッ
チスイッチを液晶表示装置に面接着して配置した時に発
生する表示むらを解消でき、安定した表示品質の表示装
置を提供できるようになった。As described above, according to the present invention, it is possible to eliminate display unevenness that occurs when a transparent touch switch is placed on a liquid crystal display device by surface bonding, and to provide a display device with stable display quality. Was.
【００２４】また、アイコンシートを削減したことや、
気泡抱き込みなどの不良が減少し、歩留まりが向上し
た。その結果、コストダウンができ、安価な表示装置を
提供できるようになった。In addition, the number of icon sheets has been reduced,
Defects such as air bubbles were reduced, and the yield was improved. As a result, the cost can be reduced and an inexpensive display device can be provided.
【図１】本発明による実施例１の表示装置の断面図。FIG. 1 is a sectional view of a display device according to a first embodiment of the present invention.
【図２】本発明による実施例２の表示装置の断面図。FIG. 2 is a sectional view of a display device according to a second embodiment of the present invention.
【図３】本発明による実施例３の表示装置の断面図。FIG. 3 is a sectional view of a display device according to a third embodiment of the present invention.
【図４】本発明による実施例４の表示装置の断面図。FIG. 4 is a sectional view of a display device according to a fourth embodiment of the present invention.
【図５】従来技術の表示装置の断面図。FIG. 5 is a cross-sectional view of a conventional display device.
【図６】従来技術の表示装置の断面図。FIG. 6 is a cross-sectional view of a conventional display device.
【図７】従来技術の表示装置の断面図。FIG. 7 is a cross-sectional view of a conventional display device.
１，２ ガラス基板 ３ 偏光板 ６ 透明接着剤 ７ 透明タッチスイッチ ８ スペーサー ９ ドライバＩＣ １０ インク １１ アイコンシート Ｌ 段差部分 1, 2 glass substrate 3 polarizing plate 6 transparent adhesive 7 transparent touch switch 8 spacer 9 driver IC 10 ink 11 icon sheet L stepped portion
Claims (3)
持され、その透明基板の表面に光学フイルムが設けられ
た液晶表示素子と、透明タッチスイッチとを備え、前記
液晶表示素子の表示面と前記透明タッチスイッチの入力
領域の裏面とを透明接着剤で接着してなる表示装置にお
いて、 前記液晶表示素子と前記透明タッチスイッチとの間に充
填された透明接着剤層が、ほぼ均一の厚みであることを
特徴とする表示装置。1. A liquid crystal display device having a liquid crystal held between at least two transparent substrates, an optical film provided on a surface of the transparent substrate, and a transparent touch switch, wherein a display surface of the liquid crystal display device is provided. In a display device in which the rear surface of the input area of the transparent touch switch is adhered with a transparent adhesive, the transparent adhesive layer filled between the liquid crystal display element and the transparent touch switch has a substantially uniform thickness. A display device, comprising:
持され、その透明基板の表面に光学フイルムが設けられ
た液晶表示素子と、透明タッチスイッチとを備え、前記
液晶表示素子の表示面と前記透明タッチスイッチの入力
領域の裏面とを透明接着剤で接着してなる表示装置にお
いて、 透明タッチスイッチと対向する側の光学フイルムの外形
と、該光学フイルムが設けられた透明基板の外形とのク
リアランスが１．０ｍｍ以下であるか、もしくは、該光
学フイルムと透明基板のクリアランス部分に該光学フイ
ルムの厚み相当のスペーサーが配設されていることを特
徴とする表示装置。2. A liquid crystal display device having a liquid crystal held between at least two transparent substrates and having an optical film provided on a surface of the transparent substrate; and a transparent touch switch, wherein a display surface of the liquid crystal display device is provided. In a display device in which the rear surface of the input area of the transparent touch switch is bonded with a transparent adhesive, an outer shape of an optical film on a side facing the transparent touch switch and an outer shape of a transparent substrate provided with the optical film are provided. A display device having a clearance of 1.0 mm or less, or a spacer corresponding to the thickness of the optical film is provided in a clearance between the optical film and the transparent substrate.
基板上、もしくは光学フイルム上に印刷されたことを特
徴とする請求項２記載の表示装置。3. The display device according to claim 2, wherein a symbol such as a character or a picture is printed on the transparent substrate or on an optical film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23758496A JP3842347B2 (en) | 1996-09-09 | 1996-09-09 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23758496A JP3842347B2 (en) | 1996-09-09 | 1996-09-09 | Display device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006111512A Division JP4227625B2 (en) | 2006-04-14 | 2006-04-14 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1083247A true JPH1083247A (en) | 1998-03-31 |
| JP3842347B2 JP3842347B2 (en) | 2006-11-08 |
Family
ID=17017492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23758496A Expired - Lifetime JP3842347B2 (en) | 1996-09-09 | 1996-09-09 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3842347B2 (en) |
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1996
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Also Published As
| Publication number | Publication date |
|---|---|
| JP3842347B2 (en) | 2006-11-08 |
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