JPS61163525A - Transparent touch panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a transparent touch panel that is attached to a display surface of a display device such as a CRT, FDP, or LCD, and is used to input coordinate data corresponding to the display on the display surface.

<Prior Art> As a method for inputting coordinate data corresponding to the display on the display surface of a display device such as a CRT, FDP, or LCD, the electrode contact method has the advantage of a simple configuration and low cost.

FIG. 6 shows a conventional electrode contact type transparent touch panel, in which a plurality of X electrodes 13. 1
3. - and a plurality of Y electrodes 14, 14°-. are formed, respectively, and X electrodes 13.13. -・Arrangement direction and Y electrode 14
,14. The transparent substrates 11 and 12 are combined so that the arrangement directions of -...- are perpendicular to each other. And transparent substrate 11
If you press the upper side of the button with your finger, the X electrode 13 will be
and the Y electrode 14, and the X and Y coordinates of the pressed position are detected. However, in this case, since the electrodes 13 and 14 are formed on the surfaces facing the upper and lower transparent substrates 11 and 12, there are disadvantages of poor transparency and high manufacturing cost. Another disadvantage is that there are many lead-out wiring terminals for the electrodes on the upper and lower transparent substrates 11 and 12, making connection with external equipment complicated.

FIG. 7 shows another conventional example of the electrode contact method, in which the back surface of the upper transparent substrate 15 is covered with electrodes, and only the lower transparent substrate 16 is patterned with electrodes.

A plurality of comb-shaped electrodes 1 are provided on the surface of the lower transparent substrate 16.
7. 17. - and comb-shaped electrode 18. 18. - is formed. Then, when the transparent substrate 15 is pressed, the electrodes on the transparent substrate 15 and the comb-shaped electrodes 17 on the transparent substrate 16 are connected to each other at this pressed position.
．． 18, the comb-shaped electrode 17 and the comb-shaped electrode 18 are electrically connected, and the coordinates of the pressed position are detected. According to such a device, the coordinate resolution is low and the comb-shaped electrode 17.18
This is effective when the number of comb-shaped electrodes 17 and 18 is small, but since the direction of the terminal lead-out wiring of the comb-shaped electrodes 17 and 18 is limited, when the coordinate resolution is high and the number of comb-shaped electrodes 17 and 18 is large,
It becomes difficult to form a pattern for terminal lead wiring from the space.

<Objective of the Invention> The present invention has been made in view of the above circumstances, and its object is to provide a transparent touch panel that increases the number of comb-shaped electrodes and also allows pattern formation of terminal lead wiring. be.

<Structure of the Invention> In the present invention, a plurality of pairs of electrodes, comb-shaped electrodes for X-coordinate detection and comb-shaped electrodes for Y-coordinate detection, are arranged in the X and Y directions on one of two transparent substrates. In a transparent touch panel that detects the X and Y coordinates of a pressed position formed in a matrix, The present invention is characterized in that the terminal lead-out wiring is formed so as to be perpendicular to the direction of the terminal lead-out wiring that commonly connects the detection comb-shaped electrodes.

<Example> An embodiment of the present invention will be described below.

FIG. 1 schematically shows an exploded configuration of a transparent touch panel.

A full-surface electrode is formed on the back surface of the upper transparent substrate 1, and a plurality of pairs of electrodes are formed on the surface of the lower transparent substrate 2, including a comb-shaped electrode 3 for X-coordinate detection and a comb-shaped electrode 4 for Y-coordinate detection. X, Y
It is formed in a matrix shape in the direction. Comb-shaped electrode 3 in each row
．． 3. - and the direction of the terminal lead-out wiring 5 that commonly connects the comb-shaped electrodes 4, 4 . -, so that the direction of the terminal lead-out wiring 6 that commonly connects the terminal lead-out wiring 5, 5. - and terminal lead-out wiring 6,6. - is formed on the lower transparent substrate 2. A transparent touch panel is formed by bonding the upper transparent substrate 1 and the lower transparent substrate 2 with a predetermined gap. Then, by pressing a desired position on the upper transparent substrate 1, the entire surface electrode of the upper transparent substrate 1 at this pressed position and the comb-shaped electrodes 3, 4 of the lower transparent substrate 2 come into contact with each other.
The pair of comb-shaped electrodes 3 and 4 are electrically connected and the X and Y coordinates of the pressed position are detected. 2 to 5 show a method for forming patterns of comb-shaped electrodes and terminal lead wiring on the lower transparent substrate 2.

In FIG. 2, comb-shaped electrodes 3, 3 . -・This comb-shaped electrode 3, 3. - comb-shaped electrode 4.4° -...
is formed. In this case, the terminal lead wiring 5, 5, --m= which commonly connects the comb-shaped electrodes 3, 3°, -
- are formed at the same time, and comb-shaped electrodes 4.4. 0 Next, as shown in FIG.
is formed. After that, as shown in FIG.
,4. - terminal lead-out wiring 6, 6. −
・is formed. This terminal extraction wiring 6.6. - is connected to the terminal lead wiring 5, 5 .・−・ is insulated. Then, as shown in Figure 5, the terminal lead wiring 6.6
．． - terminal extraction wiring 5.5. - Insulating section 8.8. -・ is formed. These insulating parts 8, 8. −・
can also serve as a spacer to maintain a predetermined gap between the upper and lower transparent substrates 1.2.

<Effects of the Invention> As explained above, in the present invention, the terminal lead-out wirings that commonly connect the comb-shaped electrodes for X-coordinate detection and Y-coordinate detection are formed in patterns in directions orthogonal to each other. Even in the case of high resolution and a large number of comb-shaped electrodes, pattern formation of terminal lead-out wiring becomes possible in sufficient space. Moreover, since the electrode pattern needs to be formed only on one side of the transparent substrate, the transparency is good and the manufacturing cost is low.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, and FIG. 2 is an exploded perspective view of an embodiment of the present invention. FIGS. 3, 4, and 5 are plan views showing the pattern forming method according to the embodiment of the present invention, and FIGS. 6 and 7 are exploded perspective views of the conventional method. 1.2-Transparent substrate 3,4-...Comb-shaped electrode 5.6-
・Terminal drawer wiring

Claims (1)

[Claims] A plurality of pairs of electrodes, comb-shaped electrodes for X-coordinate detection and comb-shaped electrodes for Y-coordinate detection, are formed in a matrix in the X and Y directions on one of the two transparent substrates, and the pressed position is In a transparent touch panel that detects X and Y coordinates, the direction of the terminal lead-out wiring that commonly connects the plurality of X-coordinate detection comb-shaped electrodes and the terminal that commonly connects the plurality of Y-coordinate detection comb-shaped electrodes. A transparent touch panel characterized in that the terminal lead-out wiring is formed such that the direction of the lead-out wiring is perpendicular to the direction of the lead-out wiring.