JPS61278924A - Display and input device - Google Patents

Abstract

PURPOSE:To obtain a thin and simple constitution ensuring a visible and bright display by disposing on the surface of a light emitting display body a lower transparent electrode group composing a key matrix and thereon a transparent member having an upper transparent electrode group on the lower surface away from a space. CONSTITUTION:An opaque electrode group 2 composing the lower contact point of the key matrix is installed on the upper surface of the light emitting display body 1 such as a cathode ray tube and a plasma display. The transparent member 3, where the upper transparent electrode group 4 composing the upper contact point of the key matrix is installed on the lower surface spaced out by sandwiching spacer 6 in between, is installed on the electrode group 2. When the transparent member 3 is depressed with fingers, etc., the upper transparent electrode at the point comes into contact with the lower one to close one point of the key matrix, and the operation is shifted to a key input.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Description of the field to which the invention pertains The present invention is a one-display/input device that enables input particularly in a dark use environment, integrates a display part and a key input part, and has two display parts. This invention relates to a display/input device that makes the display bright and easy to see.

(2) Description of conventional technology Conventionally, in this type of device, as shown in FIG.
Since the key input section having a transparent base member 5 is disposed on the display section 1 having a light emitting display, the transmittance of light from the light emitting display 1 decreases and 2 the display surface becomes dark. This resulted in a decrease in display contrast. Further, there are drawbacks such as an increase in the total thickness of the input section and the display section, an increase in the number of parts, and an increase in cost. In FIG. 2, reference numeral 2 represents a lower transparent electrode group, 3 represents a transparent member, 4 represents an upper transparent electrode group, and 6 represents a spacer.

(3) Purpose of the Invention In order to solve these drawbacks, the present invention provides a lower transparent electrode group constituting a key matrix on the light emitting display body of one light emitting display section, and an upper transparent electrode group constituting the key matrix. A transparent member having a back surface thereof is disposed on the upper surface side of the lower transparent electrode group with a space therebetween, so that the base member is omitted.The drawings will be described in detail below.

(4) Explanation of the structure and operation of the invention FIG. 1 shows an embodiment of the invention.
A display section with a light-emitting display such as T), plasma display panel (PDP), electroluminescent (EL), or fluorescent display tube (VFD).

2 is a lower transparent electrode group formed on the upper surface of the display section 1;

3 is a transparent member facing the light emitting display with a certain gap therebetween; 4 is the lower transparent electrode group 2 on the back surface of the transparent member 3;
and an upper transparent electrode group arranged to form a key matrix.

Here, the transparent electrode group 2.4 constituting the key matrix may be formed by bundling one or more thin wires made of thin film metal.

Further, the transparent electrode group 2.4 may be a simple stripe-shaped electrode, or may be an electrode having a vein-like shape with a larger area under the part pressed down by a finger or the like. Note that 6 is a spacer and 7 is an optical path.

When you press the upper surface part of the transparent member 3 corresponding to the position of a desired character or item among the characters or items displayed by the light-emitting display section 1 with your finger, the transparent electrode group 2 of that part is pressed.
．． Part of 4 is conductive.

It is detected that the input is made in the corresponding part.

Because it has such a structure, 1. In the case of the present invention, compared to the conventional example, the base member 5 used as the base of the keyboard is omitted, so that the characters for the keyboard and the guidance screen are omitted. The display from the light-emitting display body for displaying images, etc. becomes brighter and easier to see, and the total thickness becomes thinner and the price becomes lower.

(5) Description of effects As explained above, (1) according to the present invention, the base member of the keyboard disposed on the upper surface of the light-emitting display body can be removed to make it thinner, and input characters and input items can be It is possible to make the display bright and easy to see.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the device of the present invention, and FIG. 2 is a sectional view of a conventional display/input device. DESCRIPTION OF SYMBOLS 1... Light emitting display part, 2... Lower transparent electrode group, 3...
Transparent member, 4... Upper transparent electrode group, 5... Base member for key matrix, 6... Spacer, 7... Optical path. Patent applicant Nippon Telegraph and Telephone Corporation (one other person) Representative patent attorney Mori 1) Hiroshi Figure 1 Figure 2

Claims (1)

[Claims] In an input device that also serves as a display and has a display section that displays characters for a keyboard or figures including a guidance screen using a light-emitting display, and a key input section arranged on the upper surface side of the display section, the light-emitting display A transparent member having a lower transparent electrode group constituting a key matrix on the front surface and an upper transparent electrode group constituting the key matrix on the back surface is disposed on the upper surface side of the lower transparent electrode group with a space between them. Display and input device.