JPH09185457A - Touch panel, and display device with input function using the same - Google Patents
Touch panel, and display device with input function using the sameInfo
- Publication number
- JPH09185457A JPH09185457A JP34307195A JP34307195A JPH09185457A JP H09185457 A JPH09185457 A JP H09185457A JP 34307195 A JP34307195 A JP 34307195A JP 34307195 A JP34307195 A JP 34307195A JP H09185457 A JPH09185457 A JP H09185457A
- Authority
- JP
- Japan
- Prior art keywords
- display device
- refractive index
- touch panel
- transparent
- electrode substrate
- 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
Landscapes
- Liquid Crystal (AREA)
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、表示素子上に積層
配置され、指及びペン等で押圧することにより入力を行
うことができるタッチパネルに関するものであり、特
に、透明電極が形成された一対の電極基板間に、透明な
絶縁性の液体が封入されたタッチパネルに関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch panel that is stacked on a display element and can perform input by pressing it with a finger or a pen. The present invention relates to a touch panel in which a transparent insulating liquid is sealed between electrode substrates.
【０００２】[0002]
【従来の技術】携帯情報端末等に用いられるタッチパネ
ルの構成は、ガラスまたはプラスチックからなる一対の
電極基板に、ＩＴＯ、ネサ膜等からなる透明電極を形成
し、この一対の電極基板の少なくとも一方には、ペン等
による入力時の入力精度を高くするためのドットスペー
サーが形成され、周縁部に両面接着テープを介してこの
一対の電極基板が貼り合わされたものが一般的である。2. Description of the Related Art A touch panel used for a portable information terminal or the like has a structure in which a transparent electrode made of ITO, a nesa film or the like is formed on a pair of electrode substrates made of glass or plastic, and at least one of the pair of electrode substrates is made. In general, a dot spacer is formed to improve the input accuracy when inputting with a pen or the like, and the pair of electrode substrates are bonded to the peripheral portion via a double-sided adhesive tape.
【０００３】このような構成のタッチパネルは、電極基
板間に空気層が介在しているため、例えば電極基板とし
て用いられるガラスの屈折率の１．５と空気の屈折率の
１．０との屈折率の差により、光の透過率が低くなって
表示装置の明るさが低下し、ペン等による入力時には干
渉縞が生じて表示装置の表示品位が悪くなるという問題
点があった。In the touch panel having such a structure, since the air layer is interposed between the electrode substrates, for example, the refractive index of glass used as the electrode substrate is 1.5 and the refractive index of air is 1.0. Due to the difference in the ratio, the light transmittance is lowered, the brightness of the display device is lowered, and interference fringes are generated at the time of inputting with a pen or the like, so that the display quality of the display device is deteriorated.
【０００４】前述した問題点を解決するために、実開昭
６２−１０６４３６号公報に開示されているような、一
対の電極基板間に、電極基板とほぼ同等の屈折率を有す
る透明な絶縁性の液体を充填するという方法が提案され
ている。In order to solve the above-mentioned problems, as disclosed in Japanese Utility Model Laid-Open No. 62-106436, a transparent insulating material having a refractive index substantially equal to that of the electrode substrates is provided between the pair of electrode substrates. A method of filling the liquid has been proposed.
【０００５】[0005]
【発明が解決しようとする課題】前述した実開昭６２−
１０６４３６号公報で提案されている方法では、電極基
板間に空気層が介在している場合と比較すると、前述し
た問題点は改善されてはいるものの、電極基板には透明
電極が形成されており、この透明電極の屈折率について
は考慮されていない。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the method proposed in Japanese Patent No. 106436, compared with the case where an air layer is interposed between the electrode substrates, the above-mentioned problems are improved, but a transparent electrode is formed on the electrode substrate. The refractive index of this transparent electrode is not taken into consideration.
【０００６】光の透過率が低くなって表示装置の明るさ
が低下し、ペン等による入力時に干渉縞が生じて表示装
置の表示品位が悪くなるという問題点は、隣接する材料
の屈折率の差によって生じるものであり、例えば透明電
極として用いられるＩＴＯの屈折率は１．９であるた
め、例えば電極基板として用いられるガラスの屈折率の
１．５、ポリカーボネートの屈折率の１．５９、その他
のタッチパネル用電極基板として用いられるプラスチッ
クの屈折率の１．４５〜１．６０と同等の屈折率を有す
る透明な絶縁性の液体を一対の電極基板間に封入したと
しても、透明電極の屈折率と透明な絶縁性の液体の屈折
率との間には差が生じ、この隣接する材料の屈折率の差
により、前述した光の透過率が低くなって表示装置の明
るさが低下し、ペン等による入力時に干渉縞が生じて表
示装置の表示品位が悪くなるという問題点は、解消され
てはいない。[0006] The problem that the transmittance of light is lowered and the brightness of the display device is lowered, interference fringes are generated at the time of inputting with a pen or the like, and the display quality of the display device is deteriorated, This is caused by the difference. For example, since the ITO used as a transparent electrode has a refractive index of 1.9, for example, the glass used as an electrode substrate has a refractive index of 1.5, a polycarbonate has a refractive index of 1.59, and others. Even if a transparent insulating liquid having a refractive index equivalent to 1.45 to 1.60 of the refractive index of the plastic used as the electrode substrate for the touch panel is enclosed between the pair of electrode substrates, the refractive index of the transparent electrode Difference between the refractive index of the transparent insulating liquid and the refractive index of the transparent insulating liquid. Due to the difference in the refractive index of the adjacent materials, the above-mentioned light transmittance is lowered, and the brightness of the display device is lowered. Display problem quality deteriorates the interference fringes occur display device at the time of input by the is not solved.
【０００７】また、透明電極と空気層または透明電極と
透明な絶縁性の液体との屈折率の差による光干渉によ
り、タッチパネルが黄色っぽく見えるため、表示装置単
体で着色のない良好な白色を表示している場合であって
も、タッチパネルと組み合わせることにより、良好な白
色が黄色っぽい表示となって表示品位が悪くなる。Further, since the touch panel looks yellowish due to optical interference due to the difference in refractive index between the transparent electrode and the air layer or the transparent electrode and the transparent insulating liquid, the display device displays a good white color without coloring. Even if it is, when it is combined with the touch panel, a good white color becomes a yellowish display and the display quality deteriorates.
【０００８】この黄色っぽい表示は、十分に表示の明る
い透過型の表示装置と組み合わせた場合、目視では視認
者に白色であると認識させてしまうこともあるが、それ
ほど表示の明るくない反射型の表示装置と組み合わせた
場合、目視でも視認者に黄色であると認識させてしま
う。When this yellowish display is combined with a transmissive display device having a sufficiently bright display, the viewer may visually perceive it as white, but the display is not so bright and is of a reflective type. When it is combined with a display device, the viewer visually recognizes it as yellow.
【０００９】この黄色っぽい表示を解消するため、表示
装置単体における白色表示をタッチパネルの光干渉によ
る黄色と補色関係になるように、カラーフィルターの特
性を青色っぽい白色表示となるように設定することもあ
るが、この場合、青色っぽい白色表示にすることで表示
装置の明るさが低下し、表示装置として、特に光の利用
効率が表示品位に大きく影響するカラーフィルター付き
反射型液晶表示装置を用いているときには、必ずしも有
用な方法とはならない。In order to eliminate the yellowish display, it is possible to set the characteristic of the color filter to the bluish white display so that the white display in the display device alone has a complementary color relationship with the yellow due to the light interference of the touch panel. However, in this case, the brightness of the display device is reduced by displaying a bluish white color, and as the display device, a reflective liquid crystal display device with a color filter is used, in which the light utilization efficiency greatly affects the display quality. When it does, it is not always a useful method.
【００１０】本発明は、前述した従来の問題点に鑑みな
されたものであって、光の透過率が高く、表示装置の明
るさを低下させることがないとともに、ペン等による入
力時にも干渉縞が生じることが少ないタッチパネルを提
供することを目的としている。The present invention has been made in view of the above-mentioned conventional problems, and it has a high light transmittance, does not reduce the brightness of the display device, and has an interference fringe even when inputting with a pen or the like. It is an object of the present invention to provide a touch panel that is less likely to cause.
【００１１】[0011]
【課題を解決するための手段】前述した目的を達成する
ために、本発明の請求項１記載のタッチパネルは、透明
電極が形成された一対の電極基板間に、透明な絶縁性の
液体が封入されたタッチパネルであって、該透明な絶縁
性の液体の屈折率をｎｘ、該透明電極の屈折率をｎｙ、
該電極基板の屈折率をｎｚとし、ｎｚ＜ｎｘ≦ｎｙを満
たすようにしたことを特徴としている。In order to achieve the above-mentioned object, a touch panel according to claim 1 of the present invention has a transparent insulating liquid sealed between a pair of electrode substrates on which transparent electrodes are formed. A transparent touch panel having a refractive index of nx, a transparent electrode having a refractive index of ny,
It is characterized in that the refractive index of the electrode substrate is nz, and nz <nx ≦ ny is satisfied.
【００１２】請求項２記載の入力機能付き表示装置は、
請求項１記載のタッチパネルと、カラーフィルターを有
する液晶表示装置とから構成されることを特徴としてい
る。According to another aspect of the display device with an input function,
It is characterized by comprising the touch panel according to claim 1 and a liquid crystal display device having a color filter.
【００１３】本発明のタッチパネルによれば、透明な絶
縁性の液体の屈折率ｎｘ、透明電極の屈折率ｎｙ、電極
基板の屈折率ｎｚが、ｎｚ＜ｎｘ≦ｎｙを満たす屈折率
であることにより、隣接する構成部材間の屈折率の差を
小さくすることができるため、光の透過率を高くするこ
とができ、表示装置の明るさが低下することを防止する
とともに、ペン等による入力時に生じる干渉縞を低減す
ることができ、表示装置の表示品位が悪くなることを防
止する。According to the touch panel of the present invention, the refractive index nx of the transparent insulating liquid, the refractive index ny of the transparent electrode, and the refractive index nz of the electrode substrate are such that they satisfy nz <nx ≦ ny. , It is possible to increase the light transmittance because the difference in the refractive index between the adjacent constituent members can be reduced, and it is possible to prevent the brightness of the display device from being lowered, and to occur when inputting with a pen or the like. The interference fringes can be reduced and the display quality of the display device is prevented from being deteriorated.
【００１４】また、本発明の入力機能付き表示装置によ
れば、請求項１記載のタッチパネルと、カラーフィルタ
ーを有する液晶表示装置とから構成することにより、光
干渉によってタッチパネルが黄色っぽく見えることが軽
減され、表示装置のカラーフィルターの特性を青色っぽ
い白色表示となるように設定する必要がなくなり、青色
っぽい白色表示にすることで表示装置の明るさが低下す
ることもなく、表示装置として、特に光の利用効率が表
示品位に大きく影響するカラーフィルター付き反射型液
晶表示装置を用いた場合であっても、表示品位を著しく
悪化させることがない。Further, according to the display device with an input function of the present invention, by comprising the touch panel according to claim 1 and the liquid crystal display device having a color filter, it is possible to reduce that the touch panel looks yellowish due to optical interference. Therefore, it is not necessary to set the characteristics of the color filter of the display device so that the display becomes a bluish white display, and the bluish white display does not reduce the brightness of the display device. Even when using a reflective liquid crystal display device with a color filter, in which the use efficiency of the display greatly affects the display quality, the display quality is not significantly deteriorated.
【００１５】[0015]
【発明の実施の形態】図１乃至図３を用いて本発明の実
施の形態について説明する。本発明の実施の形態におい
て記載する各構成材料の屈折率は、波長５８９ｎｍにお
ける測定値を用いる。DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described with reference to FIGS. As the refractive index of each constituent material described in the embodiment of the present invention, a measured value at a wavelength of 589 nm is used.
【００１６】図１に示すようなタッチパネル１を得るた
めに、固定側電極基板２として厚さ０．７ｍｍで屈折率
１．５のガラスを用い、この固定側電極基板２上に、透
明電極３として厚さ１００ｎｍで屈折率１．９のＩＴＯ
を形成する。In order to obtain the touch panel 1 as shown in FIG. 1, a glass having a thickness of 0.7 mm and a refractive index of 1.5 is used as the fixed side electrode substrate 2, and the transparent electrode 3 is formed on the fixed side electrode substrate 2. With a thickness of 100 nm and a refractive index of 1.9
To form
【００１７】次に、可動側電極基板４として厚さ０．１
ｍｍで屈折率１．５９のポリカーボネートフィルムを用
い、この可動側電極基板４上に、透明電極３として厚さ
１００ｎｍで屈折率１．９のＩＴＯを形成する。Next, the movable electrode substrate 4 has a thickness of 0.1.
An ITO film having a thickness of 100 nm and a refractive index of 1.9 is formed as the transparent electrode 3 on the movable-side electrode substrate 4 using a polycarbonate film having a size of mm and a refractive index of 1.59.
【００１８】この固定側電極基板２及び可動側電極基板
４上に形成された透明電極３を所定の電極パターンとし
た後、フォトリソグラフィ法によってドットスペーサー
５を形成し、スクリーン印刷法によってシール６を形成
する。シール６には、透明な絶縁性の液体７を注入する
ための注入口を設けておく。After forming the transparent electrodes 3 formed on the fixed-side electrode substrate 2 and the movable-side electrode substrate 4 into a predetermined electrode pattern, dot spacers 5 are formed by photolithography and a seal 6 is formed by screen printing. Form. The seal 6 is provided with an injection port for injecting the transparent insulating liquid 7.
【００１９】次に、固定側電極基板２と可動側電極基板
４とを所定の空隙を設けて貼り合わせ、注入口から透明
な絶縁性の液体７として屈折率１．７のヨウ化メチレン
を真空注入法によって注入した後、注入口を封止するこ
とによってタッチパネル１を得る。Next, the fixed-side electrode substrate 2 and the movable-side electrode substrate 4 are adhered to each other with a predetermined gap provided therebetween, and methylene iodide having a refractive index of 1.7 is vacuumized as a transparent insulating liquid 7 from the injection port. After the injection is performed by the injection method, the touch panel 1 is obtained by sealing the injection port.
【００２０】表示装置には、図２に示すような液晶表示
装置８を用いる。本実施の形態においては、液晶表示装
置８としてゲストホストモードの反射型液晶表示装置を
用いる。液晶表示装置用上側電極基板９として厚さ０．
７ｍｍのガラスを用い、液晶表示装置用上側電極基板９
上に、シアン及びレッドからなるカラーフィルター１０
を形成し、さらに液晶表示装置用透明電極１１として厚
さ１００ｎｍのＩＴＯを形成し、所定の電極パターンと
した後、配向膜１２を形成する。A liquid crystal display device 8 as shown in FIG. 2 is used as the display device. In this embodiment, a guest-host mode reflective liquid crystal display device is used as the liquid crystal display device 8. The upper electrode substrate 9 for a liquid crystal display device has a thickness of 0.
Upper electrode substrate 9 for liquid crystal display device using 7 mm glass
On top, a color filter 10 consisting of cyan and red
Then, ITO having a thickness of 100 nm is formed as the transparent electrode 11 for the liquid crystal display device to form a predetermined electrode pattern, and then the alignment film 12 is formed.
【００２１】次に、液晶表示装置用下側電極基板１３と
して厚さ０．７ｍｍのガラスを用い、液晶表示装置用下
側電極基板１３上に、液晶表示装置用透明電極１１とし
て厚さ１００ｎｍのＩＴＯを形成し、所定の電極パター
ンとした後、配向膜１２を形成する。Next, a glass having a thickness of 0.7 mm is used as the lower electrode substrate 13 for the liquid crystal display device, and a transparent electrode 11 for the liquid crystal display device having a thickness of 100 nm is formed on the lower electrode substrate 13 for the liquid crystal display device. After forming ITO to form a predetermined electrode pattern, the alignment film 12 is formed.
【００２２】この液晶表示装置用上側電極基板９と液晶
表示装置用下側電極基板１３とをシール材料１４及びス
ペーサー（図示せず）を介して貼り合わせ、二色性色素
を混入した液晶材料１５を注入し、液晶表示装置用下側
電極基板１３に反射板１６を貼り付け、ゲストホストモ
ードの反射型液晶表示装置を得る。The upper electrode substrate 9 for the liquid crystal display device and the lower electrode substrate 13 for the liquid crystal display device are bonded together via a seal material 14 and a spacer (not shown), and a liquid crystal material 15 containing a dichroic dye is mixed. And a reflector 16 is attached to the lower electrode substrate 13 for a liquid crystal display device to obtain a guest-host mode reflective liquid crystal display device.
【００２３】このようにして得られる液晶表示装置８の
液晶表示装置用上側電極基板９に、接着剤１７を用いて
タッチパネル１を貼り付け、図３に示すような入力機能
付き表示装置１８を得る。この入力機能付き表示装置１
８は、液晶表示装置８本来の性能をタッチパネル１によ
って損なわれることなく、良好な表示特性を有してい
る。The touch panel 1 is attached to the upper electrode substrate 9 for a liquid crystal display device of the liquid crystal display device 8 thus obtained using an adhesive 17 to obtain a display device 18 with an input function as shown in FIG. . This display device with input function 1
The liquid crystal display device 8 has good display characteristics without impairing the original performance of the liquid crystal display device 8 by the touch panel 1.
【００２４】本発明の実施の形態で用いるカラーフィル
ター１０の光の透過率特性を図４に示す。従来のタッチ
パネルを用いる場合のカラーフィルターの特性は、光干
渉によってタッチパネルが黄色っぽく見えることを補正
するため、波長４５０ｎｍの青色光付近の透過率を高く
設定し、それ以外の波長の光の透過率を低く設定してい
る。これに対して、本発明の実施の形態で用いるカラー
フィルター１０の特性は、波長に関係なく、よりフラッ
トに近い透過率特性に設定することができる。FIG. 4 shows the light transmittance characteristics of the color filter 10 used in the embodiment of the present invention. The characteristics of the color filter when using a conventional touch panel are that the touch panel looks yellowish due to light interference, so the transmittance near blue light with a wavelength of 450 nm is set high and the transmittance of light with other wavelengths is set. Is set low. On the other hand, the characteristics of the color filter 10 used in the embodiment of the present invention can be set to a transmittance characteristic closer to a flatness regardless of the wavelength.
【００２５】このことにより、従来のカラーフィルター
よりもΔＴ1 の分だけ明るい表示を行うことができる。As a result, a display brighter than the conventional color filter by ΔT 1 can be displayed.
【００２６】本発明の実施の形態に係わる入力機能付き
表示装置１８の光の透過率特性を図５に示す。従来のタ
ッチパネルを用いる場合の入力機能付き表示装置の特性
は、カラーフィルターによる色補正を行っているため、
黄色っぽく見えることが解消されている。しかし、本発
明の実施の形態に係わる入力機能付き表示装置１８の特
性は、カラーフィルター１０による色補正を行う必要が
ないため、ΔＴ2の分だけ明るい表示を行うことができ
る。FIG. 5 shows the light transmittance characteristics of the display device 18 with an input function according to the embodiment of the present invention. The characteristic of the display device with an input function when using a conventional touch panel is that color correction is performed using a color filter.
The yellowish appearance has been resolved. However, the characteristic of the display device with an input function 18 according to the embodiment of the present invention is that it is not necessary to perform color correction by the color filter 10, and therefore a bright display can be performed by ΔT 2 .
【００２７】本発明のタッチパネル１は、本実施の形態
で用いた構成材料に限定されるものではなく、製造方法
についても本実施の形態で用いた方法に限定されるもの
ではない。The touch panel 1 of the present invention is not limited to the constituent materials used in this embodiment, and the manufacturing method is not limited to the method used in this embodiment.
【００２８】また、本発明のタッチパネル１と組み合わ
せる表示装置については、ゲストホストモードのカラー
フィルター付き反射型液晶表示装置に限定されるもので
はない。The display device combined with the touch panel 1 of the present invention is not limited to the guest-host mode reflective liquid crystal display device with a color filter.
【００２９】[0029]
【発明の効果】以上の説明のように、本発明のタッチパ
ネルによれば、透明な絶縁性の液体の屈折率ｎｘ、透明
電極の屈折率ｎｙ、電極基板の屈折率ｎｚが、ｎｚ＜ｎ
ｘ≦ｎｙを満たすようにしたことにより、光の透過率を
高くすることができるため、表示装置の明るさが低下す
ることを防止することができ、表示装置が本来持ってい
る性能を充分に活用することができるとともに、ペン等
による入力時に生じる干渉縞を低減することができるた
め、表示装置の表示品位が悪くなることを防止すること
ができ、表示装置が本来持っている性能を損なうことが
ない。As described above, according to the touch panel of the present invention, the refractive index nx of the transparent insulating liquid, the refractive index ny of the transparent electrode, and the refractive index nz of the electrode substrate are nz <n.
By satisfying x ≦ ny, it is possible to increase the light transmittance, and thus it is possible to prevent the brightness of the display device from being lowered, and the performance originally possessed by the display device can be sufficiently achieved. In addition to being utilized, it is possible to reduce interference fringes that occur when inputting with a pen or the like, so that it is possible to prevent the display quality of the display device from deteriorating, and to impair the inherent performance of the display device. There is no.
【００３０】また、本発明の入力機能付き表示装置によ
れば、光干渉によってタッチパネルが黄色っぽく見える
ことが軽減され、表示装置のカラーフィルターの特性を
青色っぽい白色表示となるように設定する必要がなくな
り、青色っぽい白色表示にすることで表示装置の明るさ
が低下することもなく、表示装置として、特に光の利用
効率が表示品位に大きく影響するカラーフィルター付き
反射型液晶表示装置を用いた場合であっても、表示品位
を著しく悪化させることがないため、タッチパネルと組
み合わせる表示装置の選択肢を多くすることができる。Further, according to the display device with an input function of the present invention, it is necessary to set the characteristic of the color filter of the display device such that the touch panel looks yellowish due to light interference and the display is bluish white. When the display is a bluish white display, the brightness of the display device does not decrease, and when a reflective liquid crystal display device with a color filter is used as the display device, in which the light utilization efficiency greatly affects the display quality. However, since the display quality is not significantly deteriorated, it is possible to increase the choice of display devices to be combined with the touch panel.
【図１】本発明の実施の形態に係わるタッチパネルの説
明図である。FIG. 1 is an explanatory diagram of a touch panel according to an embodiment of the present invention.
【図２】本発明のタッチパネルと組み合わせて用いられ
る液晶表示装置の説明図である。FIG. 2 is an explanatory diagram of a liquid crystal display device used in combination with the touch panel of the present invention.
【図３】本発明のタッチパネルを用いた入力機能付き表
示装置の説明図である。FIG. 3 is an explanatory diagram of a display device with an input function using the touch panel of the present invention.
【図４】本発明の実施の形態で用いるカラーフィルター
及び従来の入力機能付き表示装置で用いるカラーフィル
ターの光の透過率特性を示す説明図である。FIG. 4 is an explanatory diagram showing light transmittance characteristics of the color filter used in the embodiment of the present invention and the color filter used in the conventional display device with an input function.
【図５】本発明の実施の形態に係わる入力機能付き表示
装置及び従来の入力機能付き表示装置の光の透過率特性
を示す説明図である。FIG. 5 is an explanatory diagram showing light transmittance characteristics of a display device with an input function and a conventional display device with an input function according to an embodiment of the present invention.
１ タッチパネル ２ 固定側電極基板 ３ 透明電極 ４ 可動側電極基板 ５ ドットスペーサー ６ シール ７ 透明な絶縁性の液体 ８ 液晶表示装置 ９ 液晶表示装置用上側電極基板 １０ カラーフィルター １１ 液晶表示装置用透明電極 １２ 配向膜 １３ 液晶表示装置用下側電極基板 １４ シール材料 １５ 液晶材料 １６ 反射板 １７ 接着剤 １８ 入力機能付き表示装置 1 Touch Panel 2 Fixed Electrode Substrate 3 Transparent Electrode 4 Movable Electrode Substrate 5 Dot Spacer 6 Seal 7 Transparent Insulating Liquid 8 Liquid Crystal Display 9 Upper Electrode Substrate for Liquid Crystal Display 10 Color Filter 11 Transparent Electrode 12 for Liquid Crystal Display 12 Alignment film 13 Lower electrode substrate for liquid crystal display device 14 Sealing material 15 Liquid crystal material 16 Reflector 17 Adhesive 18 Display device with input function
Claims (2)
に、透明な絶縁性の液体が封入されたタッチパネルにお
いて、前記透明な絶縁性の液体の屈折率をｎｘ、前記透
明電極の屈折率をｎｙ、前記電極基板の屈折率をｎｚと
し、ｎｚ＜ｎｘ≦ｎｙを満たすようにしたことを特徴と
するタッチパネル。1. In a touch panel in which a transparent insulating liquid is sealed between a pair of electrode substrates on which transparent electrodes are formed, a refractive index of the transparent insulating liquid is nx, and a refractive index of the transparent electrode is Is defined as ny and the refractive index of the electrode substrate is defined as nz, and nz <nx ≦ ny is satisfied.
フィルターを有する液晶表示装置とから構成されること
を特徴とする入力機能付き表示装置。2. A display device with an input function, comprising the touch panel according to claim 1 and a liquid crystal display device having a color filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34307195A JPH09185457A (en) | 1995-12-28 | 1995-12-28 | Touch panel, and display device with input function using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34307195A JPH09185457A (en) | 1995-12-28 | 1995-12-28 | Touch panel, and display device with input function using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09185457A true JPH09185457A (en) | 1997-07-15 |
Family
ID=18358720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34307195A Pending JPH09185457A (en) | 1995-12-28 | 1995-12-28 | Touch panel, and display device with input function using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09185457A (en) |
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|---|---|---|---|---|
| WO1999056199A1 (en) * | 1998-04-24 | 1999-11-04 | Nissha Printing Co., Ltd. | Touch panel device |
| KR100300432B1 (en) * | 1999-06-23 | 2001-11-01 | 김순택 | fabrication method of the touch panel |
| JP2003015555A (en) * | 2001-06-28 | 2003-01-17 | Minolta Co Ltd | Display panel and display device provided with the panel |
| JP2007508639A (en) * | 2003-10-15 | 2007-04-05 | スリーエム イノベイティブ プロパティズ カンパニー | Patterned conductor touch screen with improved optical properties |
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| US9134851B2 (en) | 2002-02-20 | 2015-09-15 | Apple Inc. | Light sensitive display |
| US9176604B2 (en) | 2012-07-27 | 2015-11-03 | Apple Inc. | Stylus device |
| US9310923B2 (en) | 2010-12-03 | 2016-04-12 | Apple Inc. | Input device for touch sensitive devices |
| US9329703B2 (en) | 2011-06-22 | 2016-05-03 | Apple Inc. | Intelligent stylus |
| US9354735B2 (en) | 2002-05-23 | 2016-05-31 | Apple Inc. | Light sensitive display |
| US9477354B2 (en) | 2012-11-16 | 2016-10-25 | 3M Innovative Properties Company | Conductive trace hiding materials, articles, and methods |
| US9557845B2 (en) | 2012-07-27 | 2017-01-31 | Apple Inc. | Input device for and method of communication with capacitive devices through frequency variation |
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| US10474277B2 (en) | 2016-05-31 | 2019-11-12 | Apple Inc. | Position-based stylus communication |
| US11073926B2 (en) | 2002-02-20 | 2021-07-27 | Apple Inc. | Light sensitive display |
-
1995
- 1995-12-28 JP JP34307195A patent/JPH09185457A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999056199A1 (en) * | 1998-04-24 | 1999-11-04 | Nissha Printing Co., Ltd. | Touch panel device |
| US6556189B1 (en) | 1998-04-24 | 2003-04-29 | Nissha Printing Co., Ltd. | Touch panel device |
| EP1074907A4 (en) * | 1998-04-24 | 2005-11-16 | Nissha Printing | Touch panel device |
| KR100653904B1 (en) * | 1998-04-24 | 2006-12-05 | 니폰샤신인사츠가부시키가이샤 | Touch panel device |
| KR100300432B1 (en) * | 1999-06-23 | 2001-11-01 | 김순택 | fabrication method of the touch panel |
| JP2003015555A (en) * | 2001-06-28 | 2003-01-17 | Minolta Co Ltd | Display panel and display device provided with the panel |
| US11073926B2 (en) | 2002-02-20 | 2021-07-27 | Apple Inc. | Light sensitive display |
| US9971456B2 (en) | 2002-02-20 | 2018-05-15 | Apple Inc. | Light sensitive display with switchable detection modes for detecting a fingerprint |
| US9411470B2 (en) | 2002-02-20 | 2016-08-09 | Apple Inc. | Light sensitive display with multiple data set object detection |
| US9134851B2 (en) | 2002-02-20 | 2015-09-15 | Apple Inc. | Light sensitive display |
| US9354735B2 (en) | 2002-05-23 | 2016-05-31 | Apple Inc. | Light sensitive display |
| JP2007508639A (en) * | 2003-10-15 | 2007-04-05 | スリーエム イノベイティブ プロパティズ カンパニー | Patterned conductor touch screen with improved optical properties |
| US8068186B2 (en) | 2003-10-15 | 2011-11-29 | 3M Innovative Properties Company | Patterned conductor touch screen having improved optics |
| WO2008068058A1 (en) * | 2006-12-07 | 2008-06-12 | Sony Ericsson Mobile Communications Ab | Resistive touch panel filled with liquid |
| KR101017816B1 (en) * | 2007-09-26 | 2011-02-28 | 가부시키가이샤 히타치 디스프레이즈 | Display device |
| EP2187294A1 (en) | 2008-11-06 | 2010-05-19 | Hitachi Displays, Ltd. | Capacitive coupling type touch panel |
| US9310923B2 (en) | 2010-12-03 | 2016-04-12 | Apple Inc. | Input device for touch sensitive devices |
| US9329703B2 (en) | 2011-06-22 | 2016-05-03 | Apple Inc. | Intelligent stylus |
| US8928635B2 (en) | 2011-06-22 | 2015-01-06 | Apple Inc. | Active stylus |
| US9519361B2 (en) | 2011-06-22 | 2016-12-13 | Apple Inc. | Active stylus |
| US9921684B2 (en) | 2011-06-22 | 2018-03-20 | Apple Inc. | Intelligent stylus |
| US9176604B2 (en) | 2012-07-27 | 2015-11-03 | Apple Inc. | Stylus device |
| US9557845B2 (en) | 2012-07-27 | 2017-01-31 | Apple Inc. | Input device for and method of communication with capacitive devices through frequency variation |
| US9582105B2 (en) | 2012-07-27 | 2017-02-28 | Apple Inc. | Input device for touch sensitive devices |
| US9652090B2 (en) | 2012-07-27 | 2017-05-16 | Apple Inc. | Device for digital communication through capacitive coupling |
| US9477354B2 (en) | 2012-11-16 | 2016-10-25 | 3M Innovative Properties Company | Conductive trace hiding materials, articles, and methods |
| US10048775B2 (en) | 2013-03-14 | 2018-08-14 | Apple Inc. | Stylus detection and demodulation |
| US9939935B2 (en) | 2013-07-31 | 2018-04-10 | Apple Inc. | Scan engine for touch controller architecture |
| US10067580B2 (en) | 2013-07-31 | 2018-09-04 | Apple Inc. | Active stylus for use with touch controller architecture |
| US10845901B2 (en) | 2013-07-31 | 2020-11-24 | Apple Inc. | Touch controller architecture |
| US11687192B2 (en) | 2013-07-31 | 2023-06-27 | Apple Inc. | Touch controller architecture |
| CN104090696A (en) * | 2014-06-19 | 2014-10-08 | 京东方科技集团股份有限公司 | Two-side-touch display panel and device as well as driving method |
| US10061449B2 (en) | 2014-12-04 | 2018-08-28 | Apple Inc. | Coarse scan and targeted active mode scan for touch and stylus |
| US10061450B2 (en) | 2014-12-04 | 2018-08-28 | Apple Inc. | Coarse scan and targeted active mode scan for touch |
| US10067618B2 (en) | 2014-12-04 | 2018-09-04 | Apple Inc. | Coarse scan and targeted active mode scan for touch |
| US10664113B2 (en) | 2014-12-04 | 2020-05-26 | Apple Inc. | Coarse scan and targeted active mode scan for touch and stylus |
| US10474277B2 (en) | 2016-05-31 | 2019-11-12 | Apple Inc. | Position-based stylus communication |
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