JP5193764B2 - Projection type capacitive touch detection device, display panel and video display system - Google Patents
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Description
本発明は投影型容量タッチ検出装置、ディスプレイ・パネル及び映像表 示システムに関し、特に電子製品の投影型容量タッチ検出装置に適用する投影型容量タッチ検出器、ディスプレイ・パネル及び映像表示システムに関する。 The present invention relates to a projection capacitive touch detection device, a display panel, and a video display system, and more particularly to a projection capacitive touch detector, a display panel, and a video display system applied to a projection capacitive touch detection device of an electronic product.
近年、タッチ検出装置は、製造技術が進んで、製品の効能、品質が向上するために、例えば、携帯電話、デジタルカメラ、ピーディーエー、電子辞書、ラップトップコンピュータ、デスクトップコンピュータ、テレビ、全地球測位システム、自動車用の表示器、飛行機用の表示器、デジタルフォトフレーム、又はポータブルDVDプレーヤーなどのような電子製品に広く応用されている。 In recent years, touch detection devices have been improved in manufacturing technology and product effectiveness and quality. For example, mobile phones, digital cameras, PDAs, electronic dictionaries, laptop computers, desktop computers, televisions, global positioning Widely applied to electronic products such as systems, automotive displays, airplane displays, digital photo frames, or portable DVD players.
従来のタッチ検出装置は、操作者の指又は導体でタッチする瞬間、容量効果が発生し、容量感応器の容量変化量を検出することにより指又は導体 のタッチした位置を決定する機能を果たす。例えば、米国特許US6535200号「CAPACITIVE POSITION SENSOR」、米国特許US6297811号「PROJECTIVE CAPACITIVE TOUCHSCREEN」などには開示されているもの。しかしながら、タッチ検出装置では、検出ユニットの数量が多くなると、それぞれ検出ユニットに対応し設置された感応軸の数量も多くなる必要がある。それに対し、タッチ検出装置内の応用回路も複雑化する。その結果、タッチ検出装置又はそのタッチ検出装置を用いた電子製品にとって、寸法、製造コスト、パッケージコストが増加する可能性が高い。 A conventional touch detection device generates a capacitive effect at the moment of touching with an operator's finger or conductor, and fulfills the function of determining the touched position of the finger or conductor by detecting the amount of capacitance change of the capacitive sensor. For example, those disclosed in US Pat. No. 6,535,200 “CAPACITIVE POSITION SENSOR” and US Pat. No. US6297811 “PROJECTIVE CAPACITIVE TOUCHSCREEN”. However, in the touch detection device, as the number of detection units increases, the number of sensitive axes installed corresponding to the detection units needs to increase. On the other hand, the application circuit in the touch detection device is also complicated. As a result, the size, manufacturing cost, and package cost are likely to increase for the touch detection device or the electronic product using the touch detection device.
上記従来のタッチ検出装置を改善するために、製造コストを減少させるとともに応用回路を簡単になるように感応軸の数量が少なくなったタッチ検出装置を提供することが望ましい。
本発明は、上記の問題に鑑みてなされたものであり、その目的は、製造コストを減少させるとともに応用回路を簡単になるように、菱形の第１電極と三角形の第２電極とを互いに配列し、第１電極を第１感応軸に電気的に接続し第２電極を第２感応軸に電気的に接続することにより、最低数量の第１感応軸及び第２感応軸だけで指又は導体のタッチした位置を精確に決定する機能を果たすことができる複数の検出ユニットからなる配列を含む投影型容量タッチ検出装置を提供することにある。 The present invention has been made in view of the above problems, and an object of the present invention is to arrange the diamond-shaped first electrode and the triangular second electrode with each other so as to reduce the manufacturing cost and simplify the application circuit. Then, by electrically connecting the first electrode to the first sensitive axis and electrically connecting the second electrode to the second sensitive axis, a finger or a conductor can be formed with only the minimum number of the first sensitive axis and the second sensitive axis. Another object of the present invention is to provide a projected capacitive touch detection device including an array of a plurality of detection units capable of accurately determining the touched position.
上記目的を達成するための本発明は、複数の検出ユニットからなる配列を含む投影型容量タッチ検出装置を提供することで上記課題を良好に解決する。それぞれの検出ユニットは、第１電極と、前記第１電極の周囲に配置される、複数の第２電極を含む第２電極組と、前記第１電極に電気的に接続した第１感応軸と、前記第２電極に電気的に接続した第２感応軸と、を備えてなり、前記第１電極は四角形になり、前記複数の第２電極は三角形になり、前記第１電極と前記複数の第２電極とは互いに配列され四角形のパターンになり、前記第１電極と前記複数の第２電極との間には検出機能を有さない区域があることを特徴とする。 The present invention for achieving the above object satisfactorily solves the above problem by providing a projection capacitive touch detection device including an array of a plurality of detection units. Each detection unit includes a first electrode, a second electrode set including a plurality of second electrodes disposed around the first electrode, and a first sensitive shaft electrically connected to the first electrode. A second sensitive axis electrically connected to the second electrode, wherein the first electrode is square, the plurality of second electrodes are triangular, and the first electrode and the plurality of The second electrodes are arranged in a square pattern, and there is an area having no detection function between the first electrode and the plurality of second electrodes.
上記目的を達成するための本発明はさらに、複数の検出ユニットからなる配列を含む投影型容量タッチ検出装置を備えるディスプレイ・パネルを提供することで上記課題を良好に解決する。それぞれの検出ユニットは、第１電極と、前記第１電極の周囲に配置される、複数の第２電極を含む第２電極組と、前記第１電極に電気的に接続した第１感応軸と、前記第２電極に電気的に接続した第２感応軸と、を備えてなり、前記第１電極は四角形になり、前記複数の第２電極は三角形になり、前記第１電極と前記複数の第２電極とは互いに配列され四角形のパターンになり、前記第１電極と前記複数の第２電極との間には検出機能を有さない区域があることを特徴とする。 To achieve the above object, the present invention further solves the above problems by providing a display panel including a projected capacitive touch detection device including an array of a plurality of detection units. Each detection unit includes a first electrode, a second electrode set including a plurality of second electrodes disposed around the first electrode, and a first sensitive shaft electrically connected to the first electrode. A second sensitive axis electrically connected to the second electrode, wherein the first electrode is square, the plurality of second electrodes are triangular, and the first electrode and the plurality of The second electrodes are arranged in a square pattern, and there is an area having no detection function between the first electrode and the plurality of second electrodes.
上記目的を達成するための本発明はさらに、複数の検出ユニットからなる配列を含む投影型容量タッチ検出装置を備えるディスプレイ・パネルを有する映像表示系統を提供することで上記課題を良好に解決する。それぞれの検出ユニットは、第１電極と、前記第１電極の周囲に配置される、複数の第２電極を含む第２電極組と、前記第１電極に電気的に接続した第１感応軸と、前記第２電極に電気的に接続した第２感応軸と、を備えてなり、前記第１電極は四角形になり、前記複数の第２電極は三角形になり、前記第１電極と前記複数の第２電極とは互いに配列され四角形のパターンになり、前記第１電極と前記複数の第２電極との間には検出機能を有さない区域があることを特徴とする。 In order to achieve the above object, the present invention further solves the above problems by providing a video display system having a display panel including a projected capacitive touch detection device including an array of a plurality of detection units. Each detection unit includes a first electrode, a second electrode set including a plurality of second electrodes disposed around the first electrode, and a first sensitive shaft electrically connected to the first electrode. A second sensitive axis electrically connected to the second electrode, wherein the first electrode is square, the plurality of second electrodes are triangular, and the first electrode and the plurality of The second electrodes are arranged in a square pattern, and there is an area having no detection function between the first electrode and the plurality of second electrodes.
本発明による利点は、（１）特殊な形状を有した第１電極、第２電極を上記のように配列することにより、操作者の指又は導体でタッチする瞬間、容量値の変化量を検出し、指又は導体のタッチした位置を決定すること、（２）特殊な形状を有した第１電極、第２電極が上記のように配列されたことに応じて、最低数量の、電気的に接続してあった第１感応軸、第２感応軸、第１電極、及び第２電極だけでは、指又は導体のタッチした位置を精確に決定し、該タッチ検出装置の製造コストを減少させるという目的に達すること、ができるというものである。 Advantages of the present invention are as follows: (1) The first electrode and the second electrode having a special shape are arranged as described above, so that the change amount of the capacitance value is detected at the moment of touching with the finger or conductor of the operator. Determining the touched position of the finger or conductor, and (2) the first electrode having the special shape and the second electrode are arranged as described above, and the minimum quantity is electrically Only the first sensitive axis, the second sensitive axis, the first electrode, and the second electrode that have been connected accurately determine the touched position of the finger or conductor, and reduce the manufacturing cost of the touch detection device. You can reach your goal.
本願発明のその他の利点及び特徴については、以下に行う発明の実施の形態の説明から、より明らかとなるであろう。下記実施の形態は本発明の技術的手段をより具体的に詳述するためのもので、当然本発明はそれに限定されず、添付クレームの範囲を逸脱しない限り、当業者による単純な設計変更、付加、修飾、及び置換はいずれも本発明の技術的範囲に属する。 Other advantages and features of the present invention will become more apparent from the following description of embodiments of the invention. The following embodiments are intended to more specifically describe the technical means of the present invention. Naturally, the present invention is not limited thereto, and a simple design change by those skilled in the art without departing from the scope of the appended claims. Any additions, modifications, and substitutions are within the scope of the present invention.
図１は、本発明による実施形態１の投影型容量タッチ検出装置の構成を示す図である。この実施形態における投影型容量タッチ検出装置は縦に配列された六つの検出ユニット２を含んでいる。検出ユニット２の数量はディスプレイ・パネルの寸法によって変わってもよい。それぞれの検出ユニット２は、透明な、電気伝導性がある、インジウムとスズの酸化物(Indium Tin Oxide, ITO)又はインジウムと亜鉛の酸化物(Indium Zinc Oxide, In2ZnyO3+y)からなった一つの第１電極３と、透明な、電気伝導性がある、インジウムとスズの酸化物又はインジウムと亜鉛の酸化物からなり、第１電極３の周囲にそれぞれ配置され四角形になった四つの第２電極９、１０、１１、１２を含んだ第２電極組と、第１電極３に電気的に接続した少なくとも一つの第１感応軸（Ｙ）と、第２電極９、１０、１１、１２に電気的に接続した少なくとも一つの第２感応軸（Ｘ）と、を備えて成った。 FIG. 1 is a diagram illustrating a configuration of a projected capacitive touch detection device according to a first embodiment of the present invention. The projected capacitive touch detection device in this embodiment includes six detection units 2 arranged vertically. The quantity of detection units 2 may vary depending on the dimensions of the display panel. Each detection unit 2 is transparent, electrically conductive, indium and tin oxide (Indium Tin Oxide, ITO) or indium and zinc oxide (Indium Zinc Oxide, In 2 Zn y O 3 + y ). The first electrode 3 is made of a transparent, electrically conductive, indium and tin oxide or indium and zinc oxide, and is disposed around the first electrode 3 to form a square. A second electrode set including four second electrodes 9, 10, 11, 12, at least one first sensitive axis (Y) electrically connected to the first electrode 3, and second electrodes 9, 10, 11 and 12 and at least one second sensitive axis (X) electrically connected.
六つの第１感応軸Ｙ１、Ｙ２、Ｙ３、Ｙ４、Ｙ５、Ｙ６は縦に配列され、それぞれ六つの第１電極３に電気的に接続している。二つの第２感応軸Ｘ１、Ｘ２は第２電極９、１０、１１、１２に電気的に接続している。第２感応軸Ｘ１は第２電極９、１０に電気的に接続し、第２感応軸Ｘ２は第 ２電極１１、１２に電気的に接続している。第１電極３は四角形になり、好ましく菱形になった。第２電極は三角形になり、好ましく直角三角形に なった。第２電極９、１０、１１、１２の最長辺が第１電極３の一側辺に対向するとともに、第１電極３と複数の第２電極とは互いに配列され四角形のパターンになり、好ましく矩形になった。第１電極３と該第２電極組 との間には検出機能を有さない区域５がある。 The six first sensitive axes Y 1, Y 2, Y 3, Y 4, Y 5, Y 6 are arranged vertically and are electrically connected to the six first electrodes 3, respectively. The two second sensitive axes X 1, X 2 are electrically connected to the second electrodes 9, 10, 11, 12. The second sensitive axis X1 is electrically connected to the second electrodes 9 and 10, and the second sensitive axis X2 is electrically connected to the second electrodes 11 and 12. The 1st electrode 3 became a square and became a rhombus preferably. The second electrode became a triangle, preferably a right triangle. The longest side of the second electrodes 9, 10, 11, 12 faces one side of the first electrode 3, and the first electrode 3 and the plurality of second electrodes are arranged with each other to form a square pattern, preferably rectangular Became. There is an area 5 having no detection function between the first electrode 3 and the second electrode set.
図１に示すように、第２電極組は、第１三角形とした第２電極９と、第２三角形とした第２電極１０と、第３三角形とした第２電極１１と、第４三角形とした第２電極１２と、を備えた。第１三角形とした第２電極９は 第１電極３の左上方に、第２三角形とした第２電極１０は第１電極３の左 下方に、第３三角形とした第２電極１１は第１電極３の右上方に、第４三角形とした第２電極１２は第１電極３の右下方に設けられた。第１三角形とした第２電極９の区域面積、第２三角形とした第２電極１０の区域面積は左側から右側に次第に減少した。第３三角形とした第２電極１１の区域面積、第４三角形とした第２電極１２の区域面積は右側から左側に次第に減少した。三角形とした第２電極９、１０、１１、１２の面積を一側から他側に次第に減少させることにより、容量値の変化に基づいて指又は導体のタッチした位置を精確に決定することができる。 As shown in FIG. 1, the second electrode set includes a second electrode 9 having a first triangle, a second electrode 10 having a second triangle, a second electrode 11 having a third triangle, and a fourth triangle. The second electrode 12. The second electrode 9 made of the first triangle is on the upper left side of the first electrode 3, the second electrode 10 made of the second triangle is on the lower left side of the first electrode 3, and the second electrode 11 made of the third triangle is the first electrode A second electrode 12 having a fourth triangle is provided on the lower right side of the first electrode 3 on the upper right side of the electrode 3. The area of the second electrode 9 as the first triangle and the area of the second electrode 10 as the second triangle gradually decreased from the left side to the right side. The area of the second electrode 11 as the third triangle and the area of the second electrode 12 as the fourth triangle gradually decreased from the right side to the left side. By gradually reducing the area of the triangular second electrodes 9, 10, 11, and 12 from one side to the other side, the touched position of the finger or conductor can be accurately determined based on the change in capacitance value. .
図１に参照して続ける。操作者が指又は導体で本発明の投影型容量タッチ検出装置のマルＡをタッチする際に、指又は導体がタッチした瞬間、容量効果が発生するので、電気の変化量を検出することにより指又は導体のタッチした位置を決定することができる。マルＡに位置した第１電極３は 第１感応軸Ｙ１（その電気量が１Ｑと仮定）に電気的に接続している。マルＡに位置した、第１三角形とした第２電極９は第２感応軸Ｘ１（その電 気量が１Ｑと仮定）に電気的に接続している。「該第１感応軸―電気量１Ｑ」及び「該第２感応軸―電気量１Ｑ」という二つの総合情報により、指又は導体のタッチした位置を精確に決定することができる。 Continuing with reference to FIG. When the operator touches the circle A of the projected capacitive touch detection device of the present invention with a finger or conductor, a capacitive effect is generated at the moment the finger or conductor touches, so that the finger is detected by detecting the amount of change in electricity. Alternatively, the touched position of the conductor can be determined. The first electrode 3 positioned at the circle A is electrically connected to the first sensitive axis Y1 (assuming that the amount of electricity is 1Q). The 2nd electrode 9 made into the 1st triangle located in the circle | round | yen A is electrically connected to the 2nd sensitive axis | shaft X1 (it assumes that the electric energy is 1Q). The touched position of the finger or the conductor can be accurately determined based on the two pieces of comprehensive information “the first sensitive axis—electric amount 1Q” and “the second sensitive axis—electric amount 1Q”.
操作者が指又は導体で本発明の投影型容量タッチ検出装置のマルＢをタッチする際に、マルＢの箇所では二つの第１電極３が互いに接続し、該二つの第１電極３がそれぞれ第１感応軸Ｙ５（その電気量が５Ｑと仮定）及び第１感応軸Ｙ６（その電気量が６Ｑと仮定）に電気的に接続しているため、公式（５Ｑ＋６Ｑ）／２＝５．５Ｑを通じて、５．５Ｑの値が第１感 応軸Ｙ５と第１感応軸Ｙ６との間にあることが分かる。さらに、指又は導 体でタッチした位置は、第２感応軸Ｘ２（その電気量が２Ｑと仮定）に電気的に接続している第２電極１１、１２に接続した。「該第１感応軸―電気量５．５Ｑ」及び「該第２感応軸―電気量２Ｑ」という二つの総合情報により、指又は導体のタッチした位置を精確に決定することができる。 When the operator touches the circle B of the projected capacitive touch detection device of the present invention with a finger or a conductor, the two first electrodes 3 are connected to each other at the location of the circle B, and the two first electrodes 3 are respectively connected to each other. Since it is electrically connected to the first sensitive axis Y5 (assuming that the quantity of electricity is 5Q) and the first sensitive axis Y6 (assuming that the quantity of electricity is 6Q), the formula (5Q + 6Q) /2=5.5Q It can be seen that the value of 5.5Q is between the first sensitive axis Y5 and the first sensitive axis Y6. Furthermore, the position touched with a finger or a conductor was connected to the second electrodes 11 and 12 that are electrically connected to the second sensitive axis X2 (assuming that the amount of electricity is 2Q). The touched position of the finger or the conductor can be accurately determined based on the two pieces of comprehensive information of “the first sensitive axis—electric amount 5.5Q” and “the second sensitive axis—electric amount 2Q”.
図２は、本発明による実施形態２の投影型容量タッチ検出装置の構成を示す図である。この実施形態における投影型容量タッチ検出装置は縦に配列された六つの検出ユニット２を含んでいる。検出ユニット２の数量はディスプレイ・パネルの寸法によって変わってもよい。それぞれの検出ユニット２は、透明な、電気伝導性がある、インジウムとスズの酸化物(Indium Tin Oxide, ITO)又はインジウムと亜鉛の酸化物(Indium Zinc Oxide, In2ZnyO3+y)からなった一つの第１電極３と、透明な、電気伝導性がある、インジウムとスズの酸化物(Indium Tin Oxide, ITO)又はインジウムと亜鉛の酸化物(Indium Zinc Oxide, In2ZnyO3+y)からなり、第１電極３の周囲にそれぞれ配置され四角形になった四つの第２電極９、１０ 、１１、１２を含んだ第２電極組と、第１電極３に電気的に接続した少なくとも一つの第１感応軸（Ｙ）と、第２電極９、１０、１１、１２に電気 的に接続した少なくとも一つの第２感応軸（Ｘ）と、を備えて成った。 FIG. 2 is a diagram showing the configuration of the projection capacitive touch detection apparatus according to the second embodiment of the present invention. The projected capacitive touch detection device in this embodiment includes six detection units 2 arranged vertically. The quantity of detection units 2 may vary depending on the dimensions of the display panel. Each detection unit 2 is transparent, electrically conductive, indium and tin oxide (Indium Tin Oxide, ITO) or indium and zinc oxide (Indium Zinc Oxide, In 2 Zn y O 3 + y ). A first electrode 3 made of transparent, electrically conductive, indium and tin oxide (Indium Tin Oxide, ITO) or indium and zinc oxide (Indium Zinc Oxide, In 2 Zn y O) 3 + y ), and a second electrode set including four second electrodes 9, 10, 11, 12 each arranged around the first electrode 3 and having a quadrangular shape, and the first electrode 3 electrically At least one first sensitive axis (Y) connected and at least one second sensitive axis (X) electrically connected to the second electrodes 9, 10, 11, 12 were provided.
六つの第１感応軸Ｙ１、Ｙ２、Ｙ３、Ｙ４、Ｙ５、Ｙ６は縦に配列され、それぞれ六つの第１電極３に電気的に接続している。六つの第２感応軸 Ｘ３、Ｘ４、Ｘ５、Ｘ６、Ｘ７、Ｘ８は第２電極９、１０、１１、１２に電気的に接続している。六つの第２感応軸Ｘ９、Ｘ１０、Ｘ１１、Ｘ１２、Ｘ１３、Ｘ１４は第２電極１１、１２に電気的に接続している。 The six first sensitive axes Y 1, Y 2, Y 3, Y 4, Y 5, Y 6 are arranged vertically and are electrically connected to the six first electrodes 3, respectively. The six second sensitive axes X3, X4, X5, X6, X7, X8 are electrically connected to the second electrodes 9, 10, 11, 12. The six second sensitive axes X9, X10, X11, X12, X13, X14 are electrically connected to the second electrodes 11, 12.
操作者が指又は導体で本発明の投影型容量タッチ検出装置のマルＣをタッチする際に、マルＣの箇所で位置した第１電極３は第１感応軸Ｙ２（その電気量が２Ｑと仮定）に電気的に接続している。マルＣの箇所で位置した、第２三角形とした第２電極１０は第２感応軸Ｘ４（その電気量が４Ｑと仮定）に電気的に接続している。「該第１感応軸―電気量２Ｑ」及び「該第２感応軸―電気量４Ｑ」という二つの総合情報により、指又は導体のタッチした位置を精確に決定することができる。 When the operator touches the circle C of the projected capacitive touch detection device of the present invention with a finger or a conductor, the first electrode 3 positioned at the location of the circle C is the first sensitive axis Y2 (assuming that the amount of electricity is 2Q). ) Is electrically connected. The second electrode 10 having a second triangle located at the position of the circle C is electrically connected to the second sensitive axis X4 (assuming that the amount of electricity is 4Q). The touched position of the finger or the conductor can be accurately determined by the two comprehensive information of “the first sensitive axis—electric amount 2Q” and “the second sensitive axis—electric amount 4Q”.
操作者が指又は導体で本発明の投影型容量タッチ検出装置のマルＤをタッチする際に、マルＤの箇所では二つの第１電極３が互いに接続し、該二つの第１電極３がそれぞれ第１感応軸Ｙ３（その電気量が３Ｑと仮定）及び第１感応軸Ｙ４（その電気量が４Ｑと仮定）に電気的に接続しているため、公式（３Ｑ＋４Ｑ）／２＝３．５Ｑを通じて、３．５Ｑの値が第１感応軸Ｙ３と第１感応軸Ｙ４との間にあることが分かる。マルＤの箇所で互いに接続している二つの第２電極１２、１１は、それぞれ第２感応軸Ｘ１０（その電気量が１０Ｑと仮定）及び第２感応軸Ｘ１１（その電気量が１１Ｑと仮定）に電気的に接続している。公式（１０Ｑ＋１１Ｑ）／２＝１０．５Ｑを通じて、１０．５Ｑの値が第２感応軸Ｘ１０と第２感応軸Ｘ１１との間にあることが分かる。「該第１感応軸―電気量３．５Ｑ」及び「該第２感応軸―電気量１０．５Ｑ」という二つの総合情報により、指又は 導体のタッチした位置を精確に決定することができる。 When the operator touches the circle D of the projected capacitive touch detection device of the present invention with a finger or a conductor, the two first electrodes 3 are connected to each other at the point of the circle D, and the two first electrodes 3 are respectively connected to each other. Since it is electrically connected to the first sensitive axis Y3 (assuming that the amount of electricity is 3Q) and the first sensitive axis Y4 (assuming that the amount of electricity is 4Q), through the formula (3Q + 4Q) /2=3.5Q , 3.5Q is between the first sensitive axis Y3 and the first sensitive axis Y4. The two second electrodes 12 and 11 connected to each other at the point of the circle D are respectively a second sensitive axis X10 (assuming that the amount of electricity is 10Q) and a second sensitive axis X11 (assuming that the amount of electricity is 11Q). Is electrically connected. Through the formula (10Q + 11Q) /2=10.5Q, it can be seen that the value of 10.5Q is between the second sensitive axis X10 and the second sensitive axis X11. The position where the finger or the conductor is touched can be accurately determined based on the two comprehensive information of “the first sensitive axis—electric amount 3.5Q” and “the second sensitive axis—electric amount 10.5Q”.
図３は、本発明による実施形態３の投影型容量タッチ検出装置の構成を示す図である。この実施形態における投影型容量タッチ検出装置は横に配列された十二個の検出ユニット２を含んでいる。検出ユニット２の数量はディスプレイ・パネルの寸法によって変わってもよい。それぞれの検出ユニット２は、電気伝導性がある、インジウムとスズの酸化物(Indium Tin Oxide, ITO)又はインジウムと亜鉛の酸化物(Indium Zinc Oxide, In2Zn yO3+y)からなった一つの第１電極３と、透明な、電気伝導性がある、インジウムとスズの酸化物(Indium Tin Oxide, ITO)又はインジウムと亜鉛の酸化物(Indium Zinc Oxide, In2ZnyO3+y)からなり、第１電極３の周囲にそれぞれ配置され四角形になった四つの第２電極９、１０、１１、１２を含んだ第２電極組と、第１電極３に電気的に接続した少なくとも一つの第１感応軸（Ｙ）と、第２電極９、１０、１１、１２に電気的に接続した少なくとも一つの第２感応軸（Ｘ）と、を備えて成った。 FIG. 3 is a diagram showing a configuration of the projection capacitive touch detection apparatus according to the third embodiment of the present invention. The projected capacitive touch detection device in this embodiment includes twelve detection units 2 arranged side by side. The quantity of detection units 2 may vary depending on the dimensions of the display panel. Each detection unit 2 is made of indium and tin oxide (Indium Tin Oxide, ITO) or indium and zinc oxide (Indium Zinc Oxide, In 2 Zn y O 3 + y ). One first electrode 3 and transparent, electrically conductive indium and tin oxide (Indium Tin Oxide, ITO) or indium and zinc oxide (Indium Zinc Oxide, In 2 Zn y O 3 + y And a second electrode set including four second electrodes 9, 10, 11, 12 each disposed around the first electrode 3 and having a square shape, and at least electrically connected to the first electrode 3 One first sensitive axis (Y) and at least one second sensitive axis (X) electrically connected to the second electrodes 9, 10, 11, 12 were provided.
左側の六つの第１感応軸Ｙ７、Ｙ８、Ｙ９、Ｙ１０、Ｙ１１、Ｙ１２は 縦に配列され、それぞれ六つの第１電極３に電気的に接続している。右側の六つの第１感応軸Ｙ１３、Ｙ１４、Ｙ１５、Ｙ１６、Ｙ１７、Ｙ１８は縦に配列され、それぞれ六つの第１電極３に電気的に接続している。一方、四つの第２感応軸Ｘ１５、Ｘ１６、Ｘ１７、Ｘ１８について、第２感応 軸Ｘ１５は第２電極９、１０、１１、１２に、第２感応軸Ｘ１６は第２電極１１、１２に、第２感応軸Ｘ１７は第２電極９、１０に、第２感応軸Ｘ１８は第２電極１１、１２に、電気的に接続している。 The six first sensitive axes Y7, Y8, Y9, Y10, Y11, Y12 on the left are arranged vertically and are electrically connected to the six first electrodes 3, respectively. The six first sensitive axes Y13, Y14, Y15, Y16, Y17, Y18 on the right side are arranged vertically and are electrically connected to the six first electrodes 3, respectively. On the other hand, for the four second sensitive axes X15, X16, X17, and X18, the second sensitive axis X15 is the second electrode 9, 10, 11, 12, and the second sensitive axis X16 is the second electrode 11, 12. The second sensitive axis X17 is electrically connected to the second electrodes 9 and 10, and the second sensitive axis X18 is electrically connected to the second electrodes 11 and 12.
図４は、本発明による映像表示システムを示すブロック図である。この実施形態における映像表示システム６は、前記投影型容量タッチ検出装置を具備したディスプレイ・パネル７と、ディスプレイ・パネル７に電気的に接続し電気をディスプレイ・パネル７に提供する電源８と、を備えてなった。映像表示システム６は、携帯電話、デジタルカメラ、ピーディーエー、電子辞書、ラップトップコンピュータ、デスクトップコンピュータ、テレビ、全地球測位システム、自動車用の表示器、飛行機用の表示器、デジタルフォトフレーム、又はポータブルDVDプレーヤーでもある。 FIG. 4 is a block diagram showing a video display system according to the present invention. The video display system 6 in this embodiment includes a display panel 7 having the projected capacitive touch detection device, and a power supply 8 that is electrically connected to the display panel 7 and provides electricity to the display panel 7. I was prepared. The video display system 6 is a mobile phone, digital camera, PDA, electronic dictionary, laptop computer, desktop computer, television, global positioning system, automobile display, airplane display, digital photo frame, or portable It is also a DVD player.
上記実施の形態は本発明の技術的手段をより具体的に詳述するためのもので、当然本発明はそれに限定されず、添付クレームの範囲を逸脱しない限り、当業者による単純な設計変更、付加、修飾、及び置換はいずれも本発明の技術的範囲に属する。 The above-described embodiments are intended to more specifically describe the technical means of the present invention. Naturally, the present invention is not limited thereto, and simple design changes by those skilled in the art without departing from the scope of the appended claims. Any additions, modifications, and substitutions are within the scope of the present invention.
２ 検出ユニット
３ 第１電極
５ 検出機能を有さない区域
６ 映像表示システム
７ ディスプレイ・パネル
８ 電源
９〜１２ 第２電極
Ｙ１〜Ｙ１８ 第１感応軸
Ｘ１〜Ｘ１８ 第２感応軸
2 Detection unit 3 First electrode 5 Area 6 having no detection function Video display system 7 Display panel 8 Power supply 9 to 12 Second electrode Y1 to Y18 First sensitive axis X1 to X18 Second sensitive axis
Claims (9)
第１電極と、
前記第１電極の周囲に配置される、複数の第２電極を含む第２電極組と、
前記第１電極に電気的に接続した第１感応軸と、
前記第２電極に電気的に接続した第２感応軸と、を備えてなり、
前記第１電極は菱形になり、前記複数の第２電極は直角三角形になり、前記複数の第２電極の最長辺が前記第１電極の一側辺に対向するとともに、前記第１電極と前記複数の第２電極とは互いに配列され矩形のパターンになり、前記第１電極と前記複数の第２電極との間には検出機能を有さない区域があることを特徴とする投影型容量タッチ検出装置。 A projected capacitive touch detection device including an array of a plurality of detection units, each detection unit comprising:
A first electrode;
A second electrode set including a plurality of second electrodes disposed around the first electrode;
A first sensitive shaft electrically connected to the first electrode;
A second sensitive shaft electrically connected to the second electrode,
The first electrode has a rhombus, the plurality of second electrodes have a right triangle, the longest side of the plurality of second electrodes faces one side of the first electrode, and the first electrode and the A projected capacitive touch characterized in that a plurality of second electrodes are arranged in a rectangular pattern, and there is an area having no detection function between the first electrode and the plurality of second electrodes. Detection device.
前記第１三角形とした第２電極は前記第１電極の左上方に、前記第２三角形とした第２電極は前記第１電極の左下方に、前記第３三角形とした第２電極は前記第１電極の右上方に、前記第４三角形とした第２電極は前記第１電極の右下方に設けられたことを特徴とする請求項１記載の投影型容量タッチ検出装置。 The second electrode set includes a second electrode having a first triangle, a second electrode having a second triangle, a second electrode having a third triangle, and a second electrode having a fourth triangle. Become
The second electrode with the first triangle is at the upper left of the first electrode, the second electrode with the second triangle is at the lower left of the first electrode, and the second electrode with the third triangle is in the first The projected capacitive touch detection device according to claim 1, wherein the second electrode having the fourth triangle is provided on the right upper side of one electrode and on the lower right side of the first electrode.
第１電極と、
前記第１電極の周囲に配置される、複数の第２電極を含む第２電極組と、
前記第１電極に電気的に接続した第１感応軸と、
前記第２電極に電気的に接続した第２感応軸と、を備えてなり、
前記第１電極は菱形になり、前記複数の第２電極は直角三角形になり、前記複数の第２電極の最長辺が前記第１電極の一側辺に対向するとともに、前記第１電極と前記複数の第２電極とは互いに配列され矩形のパターンになり、前記第１電極と前記複数の第２電極との間には検出機能を有さない区域があることを特徴とするディスプレイ・パネル。 A display panel comprising a projected capacitive touch detection device comprising an array of detection units, each detection unit comprising:
A first electrode;
A second electrode set including a plurality of second electrodes disposed around the first electrode;
A first sensitive shaft electrically connected to the first electrode;
A second sensitive shaft electrically connected to the second electrode,
The first electrode has a rhombus, the plurality of second electrodes have a right triangle, the longest side of the plurality of second electrodes faces one side of the first electrode, and the first electrode and the A display panel , wherein the plurality of second electrodes are arranged in a rectangular pattern, and there is an area having no detection function between the first electrode and the plurality of second electrodes.
The video display system is a mobile phone, digital camera, PDA, electronic dictionary, laptop computer, desktop computer, TV, global positioning system, automobile display, airplane display, digital photo frame, or portable DVD 9. The video display system according to claim 8 , wherein the video display system is a player.
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