JPH08179687A - Display unit of portable radio terminal equipment - Google Patents

Abstract

PURPOSE: To provide the display unit of a portable radio terminal equipment from which both a visually handicapped person and a visually normal person can easily read a displayed character. CONSTITUTION: This display unit is constituted with seven display elements 1a-1g, 2a-2g per one character. A movable part 2d-1 of the display elements is moved to the upper side by excitation of a solenoid 2d-2 and protruded from a cover 3. As the solenoid is not excited, a movable part 1d-1 of the display elements is pressed to the lower side by a spring 1d-3 and set to the same position as a surface of the cover. Tips of the movable part 1d-1, 2d-1 are formed with transparent or translucent material. Also, LEDs 1d-4, 2d-4 mounted on a LED substrate 5 are arranged inside the movable parts 1d-1 and 2d-1 respectively. The LED 1d-4 in the protruded movable part 2d-1 emits light and illuminates a tip of the movable part 2d-1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device provided in a portable radio terminal such as a portable telephone or a radio calling terminal, and more particularly to a portable device capable of easily recognizing a display character even for a visually impaired person and a normal person. The present invention relates to a display of a wireless terminal.

[0002]

2. Description of the Related Art Conventional displays for the visually impaired include:
For example, as disclosed in Japanese Patent Application Laid-Open No. 5-300776, a Braille display for displaying Braille by moving the projecting elements arranged on the dial up and down, or disclosed in Japanese Patent Application Laid-Open No. 4-122131. As described above, there is disclosed a display or the like that displays the shape of a character by undulating a large number of projections (for example, 5 × 7 dots).

[0003]

However, in the former method, since braille is displayed by a large number of projection elements, a visually impaired person can read by the touch of a finger, but has no knowledge of braille but a normal visually impaired person. Can not read. In addition, since it is necessary to drive and control a large number of projection elements, it is difficult to reduce the size. In the latter case, since the shape of the character is displayed by a large number of protrusions, even a visually impaired person who cannot read Braille can recognize the character by the feel of his / her finger, but there is a drawback in that the character recognition takes longer than in the case of visual recognition.

It is an object of the present invention to provide a display device for a portable wireless terminal which allows a visually impaired person and a visually impaired person to easily read the displayed characters and can be downsized.

[0005]

According to the present invention, there is provided a display for a portable wireless terminal which displays characters by projecting a plurality of movable elements from a display surface in accordance with display characters. When the movable element protrudes from the display surface, light emitting means is provided for illuminating the protruding movable element from inside. Further, the display characters are alphanumeric characters that can be displayed in seven segments, and the movable element is composed of seven characters per character.

[0006]

The present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention.
FIG. 1A shows a display surface, and FIG. 1B shows a cross-sectional view taken along a line AA shown in FIG.

As shown in FIG. 1A, characters to be displayed are numbers and several types of alphabets that can be displayed in seven segments. Here, as an example, “1”,
Two characters indicated as "2" are shown, and each character is constituted by seven display elements 1a to 1g and 2a to 2g corresponding to each segment a, b, c, d, e, f, g. Have been. The required number is arranged according to the number of characters to be displayed.

In FIG. 1B, a display element 1a
1g and 2a to 2g are arranged on the display element substrate, and here, the display elements 1d and 2d located on the AA cutting line are shown.

The movable parts 1d-1, 2d- of the display element
1 moves upward when the solenoids 1d-2 and 2d-2 are excited, the tip protrudes from the cover 3, and
When the solenoid is not excited, the spring 1d-3,
It is urged downward by 2d-3 so that the tip is located at the same position as the surface of the cover 3. Note that the shape of the tip is the shape of each segment constituting the character, and a hole is formed in the cover 3 so as to project from the surface of the cover 3 in accordance with the shape of the tip.

Further, the tips of the movable parts 1d-1 and 2d-1 are formed of a transparent or translucent material, and the spaces provided inside the movable parts are LEDs 1d-4 attached to the LED substrate 5. , 2d-4 are arranged respectively.

Next, the operation will be described with reference to FIGS.

For example, the number "2" is displayed on the display element 2a.
2 to 2 g, the keypad 2 shown in FIG.
The “2” key of “0” is pressed, and the display character code of the number “2” is input to the segment selection unit 21. As shown in FIG. 1A, the segment selecting unit 21 selects the segments a, b, d, e, and g indicating the number "2" from among the seven segments forming one character, and selects the solenoid. Drive unit 22
And the LED drive unit 23. The segments to be displayed are predetermined for each display character code.

The solenoid drive unit 22 includes solenoids 2a-2, 2b-2, 2d-2, 2e-2, 2 of the display elements corresponding to the segments a, b, d, e, g to be displayed.
A current is applied to g-2 to excite. The movable parts 2a-1, 2b- of the display element whose solenoid is excited
1d, 1, 2e-1, and 2g-1 are driven upward and their tips protrude from the cover 3 as shown in FIG.

On the other hand, the LED driving section 23 is provided with LEDs 2a-4, 2b-4, 2d-4, 2e-4, 2g of display elements corresponding to the segments a, b, d, e, g to be displayed.
-4 to emit light. Therefore, as shown in FIG. 1A, the tip of the display element corresponding to the segment indicating the number “2” is brightly illuminated.

In this way, by touching the tip of the display element projecting from the cover surface of the display with a finger, the display characters can be easily recognized by visually impaired persons and normal persons. In addition, since the protruding tip of the display element is brightly illuminated by the light emission of the LED, a person with normal vision can easily read the displayed characters visually.

[0017]

As described above, according to the present invention, by illuminating the display element protruding from the display surface from the inside by the light emitting element, the visually impaired person does not have to touch the display surface with his / her finger and it is dark. Even in places, the displayed characters can be easily read visually. Furthermore, the number of display elements can be reduced by limiting each character to alphanumeric characters that can be displayed in seven segments and arranging seven display elements corresponding to the seven segments, so that the size of the display can be reduced. Not only that, the visually impaired can easily read the displayed characters by tactile sensation.

[Brief description of drawings]

FIGS. 1A and 1B are diagrams showing an embodiment of the present invention, in which FIG. 1A shows a display surface, and FIG. 1B shows a cross-sectional view taken along the line AA shown in FIG.

FIG. 2 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1a-1g, 2a-2g Display element 1d-1, 2d-1 Movable part 1d-2, 2d-2 Solenoid 1d-3, 2d-3 Spring 1d-4, 2d-4 LED 3 Cover 21 Segment selector 22 Solenoid Drive unit 23 LED drive unit

Claims (2)

[Claims] 1. A display for a portable wireless terminal that displays characters by projecting a plurality of movable elements from a display surface in accordance with display characters, wherein the movable element projects when the movable element projects from the display surface. A display for a portable wireless terminal, comprising: a light emitting means for illuminating an element from inside. 2. The display according to claim 1, wherein the display characters are alphanumeric characters that can be displayed in seven segments, and the movable element comprises seven characters per character. .