JPS6198432A - Input device for position of transparent coordinates - Google Patents

Abstract

PURPOSE:To attain the attachment of a shadow mask onto a display transparent input device on a display by setting a transparent printed board and a shadow mask having a parallel stripe pattern opposite to each other with a space. CONSTITUTION:The black conductive resin and the transparent insulated resin are laminated alternately to form a shadow mask 4 having a parallel stripe pattern. While a transparent printed board 5 contains a substantially transparent electrode. These mask 4 and board 5 are attached to an outer circumferential frame 8 with a fixed space, e.g., 2mm. Black conductive rubber or resin of the mask 4 seems with the lateral straight line width through the board 5. This rubber or resin prevents the glare of the light given from a CRT. When a point of the mask 4 is pressed with a finger, this contact point is transmitted to a host processor as the XY coordinates owing to contact between an electrode on the board 5 and a black conductive layer serving as an electrode.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a transparent coordinate position input device, particularly an anti-glare cathode ray tube that can be used as a self-luminous display device.

The present invention relates to a transparent coordinate position input device that integrates a shadow mask for bright light and coordinate position input by position suppression on a display.

(Prior Art) The transparent touch panel method is attracting attention as an input device for computers (ITK), which allows commands to be entered into a computer by touching a cursor, number, or symbol displayed on the screen with a finger. It is considered basic to do so. As for this touch panel method, the resistive film method is well known - for example, by pressing between two polyester sheets with electrodes in the X or Y direction, the XY coordinates can be changed to the host. This is to transmit light to the processor, but since it is not equipped with an anti-glare and bright light device for the light from the shaded wire tube, it accumulates when used for a long time, and it also reduces visual acuity. Therefore, there is a problem that the shadow mask is reduced, and therefore, it is being considered to eliminate the use of shadow masks, but it is also considered to place a transparent input device on the display to simplify human labor. There is a need for something that can use both at the same time.

(Structure of the Invention) The present invention relates to a transparent coordinate input device that satisfies such requirements, and includes a transparent printed circuit board with substantially transparent electrodes, a black conductive resin, and a transparent insulating material. A shadow mask having a parallel knitting pattern in which resin and resin are alternately laminated are arranged facing each other at one interval.

To explain this, the present inventors studied a coordinate input device that has a shadow mask and a transparent input device at the same time, and found that the shadow mask was made of black conductive resin with thickness and width in horizontal and straight lines. If you use this, you can use it not only as a louver in the original shadow mask, but also as an electrode. The present invention was completed by confirming that by combining a transparent printed circuit board with transparent electrodes, it is possible to create a coordinate input device such as an eye γJ.

Next, this will be explained based on the attached drawings.

FIG. 1 shows a perspective view of a shadow mask used in the apparatus of the present invention, and a transparent insulating rubber or resin made from silicone rubber, urethane rubber, vinyl acetate-styrene resin, etc. Sheet 1 and these rubbers
A black conductive rubber or resin sheet 2 made by mixing carbon black such as acetylene black or Ketjen black into the resin is alternately tcvi4, and then this is cut along a cutting line 3 perpendicular to the laminated surface VC. Obtainable. The shadow mask 4 obtained in this way has a black band with a certain line and width in the horizontal direction, and this becomes the looper of the shadow mask, but this is due to the inclusion of carbon black. Therefore, it can also be used as an electrode.

Moreover, FIG. 2 shows a plan view of a transparent printed circuit board 5 used in combination with this Nyado mask, which is made of glass, polyester resin, acrylic resin,
2. A transparent metal film 7 made of indium oxide, tin oxide, or an alloy thereof with a width of 1.0 sn is placed on a transparent substrate 6 made of vinyl chloride resin or the like. Although this substrate was obtained by vapor deposition on an on-pitch, it is preferable to use a polyester sheet from the viewpoint of cost, but from the viewpoint of durability, it is preferable to use a glass plate.

Figure 3 shows the device of the present invention which is a combination of the above-mentioned shadow mask and transparent printed circuit board. a) As shown in the figure, the shadow mask 4 and the transparent printed circuit board 5 are attached to the outer peripheral frame 8Vc at a constant interval of 1, for example, 2 mm. As shown in Figure 62, the black conductive rubber or resin of the shadow mask can be seen through the transparent printed circuit board in a straight line in the horizontal direction, so that the light from the one cathode tube is prevented from dazzling. This is effective, and when a point on the V-yado mask is pressed with a finger, this contact point is transmitted to the post processor as an XY coordinate by contact between the electrode on the substrate and the black conductive layer serving as the electrode.

The insulating sheet and conductive sheet in the shadow mask described above should have a thickness of about 0.2 mm for the insulating sheet and about 0.02 mm for the conductive sheet. The distance between and the printed circuit board is 1.
0-3. Oy+x - preferably 1,5 to 2,0 am
And it is sufficient.

Next, examples of the present invention will be given.

Example Transparent silicone rubber compound KE174U (
Shin-Etsu Chemical Co., Ltd. Product name: 100 parts with 0-0 curing catalyst
A transparent silicone rubber sheet with a thickness of 0.2 mm is made by extrusion molding from a silicone rubber base material obtained by adding 2.5 parts of 10 (product name manufactured by the company). 040D [Shin-Etsu Polymer Co., Ltd.]
11. Make a conductive black silicone rubber sheet with a thickness of 0.02 m from [Cylinder product name]. These are laminated alternately and hot-pressed to form an integrated product, and then this laminate is cut in a direction perpendicular to the lamination direction to a thickness of 0.22xx to a size of 25o x 32mm.
I made 0g+wealth shadow maskra.

On the other hand, 25Qx320x2. On the transparent glass plate of OB,
Width 1. Otm oxide indium film with pitch 2, Ou
A transparent printed circuit board was made by vapor deposition.

First, connect this shadow mask and the printed circuit board with a 27° x 240 x 15 inch space between the vinyl chloride resin frame and the printed circuit board so that the conductive wires of the shadow mask and the oxidized indium on the printed circuit board are perpendicular to each other. Make a transparent coordinate input device by attaching it.

When this was combined with an anode ray tube device and operated as a resistive touch panel for computer use, this touch panel could not be used for long periods of time because the light from the cathode ray tube was blocked by a shadow mask. However, by lightly pressing the shadow mask surface, the intersection point between the conductive portion of the shadow mask surface and the oxidized indium surface on the printed circuit board was input into the computer as XY coordinates.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a shadow mask used in the device of the present invention, Fig. 2 is a front view of a transparent printed circuit board used in the device of the present invention, and Fig. 3 a) is a longitudinal cross-sectional view of the device of the present invention. ,
b) shows its plan view. l...Insulating sheet, 2...Conductive sheet,! 3
...ill, 4...shadow mask. ri...Transparent printed circuit board, 6...Transparent 2F board. 7...Metal film, 8...Frame. Patent applicant: Shin-Etsu Polymer Co., Ltd.

Claims (1)

[Claims] 1. A transparent printed circuit board with substantially transparent electrodes arranged thereon;
A transparent coordinate position input device characterized in that shadow masks in a parallel striped pattern formed by alternately laminating black conductive resin and transparent insulating resin are arranged facing each other with an interval.