CN1442826A - Contact screen for correcting electric field distribution nonlinearity using medium layer - Google Patents

Contact screen for correcting electric field distribution nonlinearity using medium layer Download PDF

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Publication number
CN1442826A
CN1442826A CN 03112993 CN03112993A CN1442826A CN 1442826 A CN1442826 A CN 1442826A CN 03112993 CN03112993 CN 03112993 CN 03112993 A CN03112993 A CN 03112993A CN 1442826 A CN1442826 A CN 1442826A
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China
Prior art keywords
electrode
line
insulating layer
touch screen
outer edge
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CN 03112993
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Chinese (zh)
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CN1160661C (en
Inventor
刘忠安
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中国电子科技集团公司第五十五研究所
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Priority to CNB031129935A priority Critical patent/CN1160661C/en
Publication of CN1442826A publication Critical patent/CN1442826A/en
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Abstract

A touch screen using medium layer to correct the nonlinearity of electric field distribution features that a medium layer is prepared under the electrode, which surrounds its electrically conductive membrane to generate the electric field distribution on the membrane. Its advantages are high effect and simple design. The technique can increase linear touch positino area of touch screen.

Description

用介质层校正电场分布非线性的触摸屏 Non-linear distribution with a dielectric layer of the touch screen calibration field

技术领域 FIELD

本发明涉及一种触摸屏,尤其是通过检测一层具有电场分布的导电膜上触摸点的电信号来定位触摸点坐标的触摸屏。 The present invention relates to a touch screen, in particular a layer of electrical conductive film having an electric field distribution of a touch point by detecting coordinates of a touch point locating a touch screen.

本发明的目的可以通过以下措施来达到:一种用介质层校正电场分布非线性的触摸屏,它包括一个在透明基材21上具有导电膜20的导电工作板2,围绕导电膜20四周有电极22、23、24、25、相邻电极在四角31连接并有电极引线32和一个能从导电膜20检测出电信号的检测装置,其特征是围绕导电膜20的电极22、23、24、25下面有一层介质绝缘层60。 The object of the present invention can be achieved by the following measures: a non-linear distribution with a touch screen calibration field dielectric layer, comprising a conductive film having a conductive plate 20 is working on a transparent substrate 212, a conductive film 20 form around the electrode 22, 23, connected to the four corners of the adjacent electrodes 31 and the electrode lead 32 and a conductive film 20 is detected by detecting an electrical signal, characterized in that around the electrode 20 from the conductive film 22, 23, an insulating dielectric layer 25 below layer 60.

本发明的目的还可以通过以下措施来达到:介质绝缘层60的内边缘线61是直线,外边缘线62是曲线;介质绝缘层60的外边缘线62的弯曲量H′,与该触摸屏沿电极边缘52直线触摸定位所形成的非线性定位线50的弯曲量H相一致;介质绝缘层60的外边缘线62的弯曲量H′,与该触摸屏沿电极边缘52直线触摸定位所形成的非线性定位线50的弯曲量H满足|(HH′)|/(上述介质层内边缘的相邻正交边的长度)<1%;介质绝缘层60上面的电极22、23、24、25,必须覆盖介质绝缘层60的外边缘线62;介质绝缘层60的外边缘线62′是一条直线,外边缘线62′与导电膜20的边缘线28相隔一间隙h;介质绝缘层60上面的电极22、23、24、25,必须覆盖间隙h。 Object of the present invention can also be achieved by the following measures: the edge line dielectric insulating layer 60 is 61 is a straight line, the outer edge line 62 is a graph; outer edge line dielectric insulating layer 62 of the bending amount H ', along with the touch screen Nonlinear bit line electrode edge 52 linear touch positioning the formed bending amount H 50 consistent; dielectric insulating layer 60 is an outer edge line 62 of the bending amount H ', non with the touch panel along the edge of the electrode 52 linearly touch positioning formed the amount of bending of the linear positioning wire 50 H satisfies | (HH ') | / (side length perpendicular to the adjacent inner edges of the above-described dielectric layer) <1%; dielectric insulating layer above the electrodes 22, 23, 60, It must cover the dielectric insulating layer on the outer edge line 60, 62; an outer edge line dielectric insulating layer 60 62 'is a straight line, the outer edge line 62' and the edge line conductive film 20 of 28 separated by a gap H; dielectric insulating layer 60 above electrodes 22, 23, must cover the gap h.

本发明的优点: The advantages of the present invention:

本发明采用图形校正,设计简单,而且可以在电极宽度范围D内,校正电极分布的非线性,使有效线性触摸定位区51扩展到电极边缘52或接近电极边缘52位置。 The present invention uses the correction pattern, simple design, and may be in the range of the electrode width D, the correction of non-linear distribution of the electrodes, the effective linear touch location area 51 to the extended position 52 or the electrode edge 52 close to the electrode edges.

实施例二在如图1的导电膜20上制作电极前,先制作了一层介质绝缘层60(如图3),然后在上述介质绝缘层60上再制作电极22、23、24、25。 Before producing an electrode according to the second embodiment in FIG. 1 on the conductive film 20, the first insulating layer made of a dielectric 60 (FIG. 3), and then making the electrode 22, 23 on the dielectric insulating layer 60. 上述介质绝缘层60的外边缘线62是曲线,内边缘线61是直线。 An outer edge line of the insulating layer 60 of dielectric 62 is curved, the edge line 61 is a straight line. 外边缘线62的弯曲量H′与非线性定位线50的弯曲量H满足 An outer edge of the curved line 62 an amount of H 'and nonlinear bending amount bitlines 50 satisfies H

|(HH′)|/(上述介质层内边缘的相邻正交边的长度)<1%。 | (HH ') | / (length perpendicular to the adjacent edges of the medium layer side) of <1%.

实施例三如图4。 Third Embodiment 4 FIG. 把实施例一中介质层的外边缘线62由图3的曲线变成图4的外边缘线62′,外边缘线62′是一条直线,且上述外边缘直线62′与导电膜20的边缘线28之间必须有一间隙h。 The outer edge line 62 of the diagram of a dielectric layer becomes the embodiment of FIG. 3 by the curve in FIG. 4 the outer edge line 62 ', the outer edge line 62' is a straight line, and the outer edges of the straight line 'and the edge 20 of the conductive film 62 there must be a gap h between the line 28. 电极22、23、24、25制作在介质绝缘层60及间隙h上面,并保证电极与下面导电膜20,通过间隙h导通。 Electrodes 22, 23 made in the upper insulating layer 60 h and the gap medium, and to ensure that the electrode with the underlying conductive film 20, the gap h is turned on. 要求间隙h远小于电极宽度D。 It requires much smaller than the electrode width of the gap h D. 从而可使上述电极形成的电场分布的线性区,也即有效线性触摸定位区51从图2的位置向外扩展Dh的范围。 Thereby allowing the electrode forming an electric field distribution of the linear region, i.e. the effective linear range of the touch location area 51 extended from the position of FIG. 2 Dh outwardly.

Claims (7)

1.一种用介质层校正电场分布非线性的触摸屏,它包括一个在透明基材(21)上具有导电膜(20)的导电工作板(2),围绕导电膜(20)四周有电极(22)、(23)、(24)、(25),相邻电极在四角(31)连接并有电极引线(32)和一个能从导电膜(20)检测出电信号的检测装置,其特征是围绕导电膜(20)的电极(22、23、24、25)下面有一层介质(60)。 An electric field distribution with a dielectric layer of nonlinear correction touch screen, which comprises a conductive film having (20) a conductive plate work (2) on a transparent substrate (21), (20) is surrounded by a conductive film electrode ( 22), (23), (24), (25), adjacent to the four corners of the electrode (31) and connected to an electrode lead wire (32) and the detection means detects the electrical signal from a conductive film (20), characterized in an electrode (22, 23) surrounding the conductive film (20) is below a dielectric (60).
2.如权利要求1所述的触摸屏,其特征是介质绝缘层(60)的内边缘线(61)是直线,外边缘线(62)是曲线。 The touch screen according to claim 1, characterized in that the edge line of the insulating dielectric layer (60) (61) is a straight line, the outer edge line (62) is curved.
3.如权利要求2所述的触摸屏,其特征是介质绝缘层(60)的外边缘线(62)的弯曲量H′,与该触摸屏沿电极边缘(52)直线触摸定位所形成的非线性定位线(50)的弯曲量H相一致。 The touch panel as claimed in claim 2 linear electrodes along the edge of the touch screen (52) formed by positioning a touch straight claims, wherein the dielectric insulating layer (60) of the outer edge line (62) of the bending amount H ', bit lines (50) of the bending amount H coincide.
4.如权利要求2所述的触摸屏,其特征是介质绝缘层(60)外边缘线(62)的弯曲量H′,与该触摸屏沿电极边缘(52)直线触摸定位所形成的非线性定位线(50)的弯曲量H满足|(HH′)|/(上述介质层内边缘的相邻正交边的长度)<1%。 The touch panel as claimed in claim 2 linear positioning the electrode along the edge of the touch screen (52) formed by positioning a touch straight claims, wherein the dielectric insulating layer (60) outer edge line (62) of the bending amount H ', line (50) of the bending amount H satisfies | (HH ') | / (length perpendicular to the adjacent edges of the medium layer side) of <1%.
5.如权利要求2所述的触摸屏,其特征是介质绝缘层(60)上面的电极(22)、(23)、(24)、(25),必须覆盖介质绝缘层(60)的外边缘线(62)。 The touch screen according to claim 2, wherein the dielectric insulating layer (60) of the upper electrode (22), (23), (24), (25), the outer edge of the media must cover the insulating layer (60) line (62).
6.如权利要求1所述的触摸屏,其特征是介质绝缘层(60)的外边缘线(62′)是一条直线,外边缘线(62′)与导电膜(20)的边缘线(28)相隔一间隙h。 The touch screen according to claim 1, wherein the dielectric insulating layer (60) of the outer edge line (62 ') is a straight line, the outer edge line (62') and the conductive film (20) of the edge line (28 ) separated by a gap h.
7.如权利要求6所述的触摸屏,其特征是介质绝缘层(60)上面的电极(22)、(23)、(24)、(25),必须覆盖间隙h。 7. The touch panel according to claim 6, characterized in that the top dielectric insulating layer (60) of the electrode (22), (23), (24), (25) must cover the gap h.
CNB031129935A 2003-03-18 2003-03-18 Contact screen for correcting electric field distribution nonlinearity using medium layer CN1160661C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102449582A (en) * 2009-05-28 2012-05-09 凸版印刷株式会社 Capacitance-type input device
US8249661B2 (en) 2007-11-06 2012-08-21 Lg Electronics Inc. Mobile terminal
CN101910984B (en) 2008-04-10 2012-11-07 夏普株式会社 Touch panel and display equipped with the same
CN101431552B (en) * 2007-11-06 2014-02-12 Lg电子株式会社 Mobile terminal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8249661B2 (en) 2007-11-06 2012-08-21 Lg Electronics Inc. Mobile terminal
US8447364B2 (en) 2007-11-06 2013-05-21 Lg Electronics Inc. Mobile terminal
CN101431552B (en) * 2007-11-06 2014-02-12 Lg电子株式会社 Mobile terminal
US8712479B2 (en) 2007-11-06 2014-04-29 Lg Electronics Inc. Mobile terminal
CN103761040B (en) * 2007-11-06 2017-04-19 Lg电子株式会社 Mobile terminal
CN101910984B (en) 2008-04-10 2012-11-07 夏普株式会社 Touch panel and display equipped with the same
CN102449582A (en) * 2009-05-28 2012-05-09 凸版印刷株式会社 Capacitance-type input device
CN102449582B (en) * 2009-05-28 2014-12-24 凸版印刷株式会社 Capacitance-type input device

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