JPH11272208A - Liquid-crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid-crystal display device which is simple and compact in structure and can be manufactured at low cost. SOLUTION: A liquid-crystal display device 1 has a device body, inside which a liquid crystal means 3 with segments formed in the shape of a matrix and an illumination means 5 for illuminating light forward from the rear of the liquid crystal means 3 are provided. A controller 6 for drivingly controlling each segment of the liquid crystal means 3 is provided in the device body. The controller 6 controls the segments of the liquid crystal means 3 so that only the specific segments allow the light from the illumination means to pass through, whereas the other segments shut off the light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device for displaying characters, numerals, pictures and the like in a liquid crystal matrix.

[0002]

2. Description of the Related Art Conventionally, a display device for displaying characters, numerals, pictures and the like has a plurality of LEDs arranged in a grid and controls the order of light emission of the plurality of LEDs by control means provided in the display device body. Was displayed.

[0003]

The above-mentioned conventional display device requires a large number of LEDs to make it appear as if characters or the like are moving, so that it consumes a large amount of electricity and is manufactured in a compact form. There was a problem that can not be. In addition, there is a problem in that a rapidly blinking LED is easily broken, and if one LED is broken, it cannot be used immediately.

The invention according to claim 1 of the present application has been made in view of the above problems, and has as its object to provide a liquid crystal display device which is simple in structure, compact and can be manufactured at low cost. And

[0005]

According to a first aspect of the present invention, there is provided a liquid crystal display device having the following configuration. (B) Having an apparatus body. (B) Liquid crystal means having segments formed in a matrix and illumination means for irradiating illumination light forward from the rear of the liquid crystal means are provided in the apparatus body. (C) A control device for driving and controlling each segment of the liquid crystal means is provided in the apparatus main body. (D) The control device controls so that only a specific segment of the liquid crystal unit transmits light from the illumination unit and the other segments block light.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the liquid crystal display device according to the present invention will be described with reference to FIGS. FIG. 1 is an overall exploded perspective view showing an embodiment of a liquid crystal display device. FIG. 2 is a sectional view of a main part of FIG. FIG. 3 is an explanatory diagram illustrating a use state. FIG. 4 is a block diagram.

[0007] The liquid crystal display device 1 has a device main body 2.
A liquid crystal unit 3 having segments formed in a matrix and an illuminating unit 5 for irradiating illumination light forward from the rear of the liquid crystal unit 3 are provided in the apparatus main body 2. A control device 6 for controlling the driving of each segment of the liquid crystal means 3 and the illumination means 5 is provided in the apparatus main body 2. The control device 6 controls so that only a specific segment of the liquid crystal unit 3 transmits the light from the illumination unit 5 and the other segments block the light.

In the liquid crystal display device 1, since only a specific segment of the liquid crystal means 3, the driving of which is controlled by the control device 6, has transparency, when the lighting means 5 is turned on, the light is transmitted to the liquid crystal means 3. Pass only the specific segment. At the same time, the control device 6 drives and controls the other segments of the liquid crystal means 3 to block light. The control device 6
The specific segment that transmits light by the drive control of
Since specific characters, numbers, pictures, and the like are configured, the specific characters, numbers, pictures, and the like are illuminated and displayed in a state of being raised by the light of the illumination unit 5.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. The liquid crystal display device 1 has a device main body 2. The device main body 2 is configured by joining an upper case 10 and a lower case 11 and integrally assembling them with screws or the like. The upper case 10 has a display opening 12 formed in the front part,
A plurality of operation button small holes 13 are formed in the rear part.

In the lower case 11, a board 15 provided with a control device 6 is provided.
(Illumination means) 5 are attached. The control device 6 has a CPU, a ROM, and a peripheral circuit unit thereof. The ROM stores a control program for controlling display of information such as characters, numbers, symbols, and comments.
Based on a control program stored in the ROM, the CPU controls only a specific segment of the liquid crystal unit 3 described later to transmit light from the illumination unit and block other segments from the light (FIG. a), (c)).

Contrary to the above, the CPU is configured such that based on a control program stored in the ROM, only the specific segment of the liquid crystal means 3 blocks light and the other segments transmit light. (FIGS. 3B and 3D)
reference). Further, the time during which only the specific segment transmits light from the illumination means can be performed continuously or sequentially. As described above, when the segments corresponding to information such as characters, numbers, symbols, and comments are sequentially controlled in transparency, information such as characters, numbers, symbols, and comments are displayed as if they flow.

On both sides of the substrate 15, supporting members 17, 17
The liquid crystal means 3 is attached to the upper ends of the support members 17 and 17. The liquid crystal unit 3 includes a liquid crystal cell and a pair of polarizing plates disposed on both sides of the liquid crystal cell. The liquid crystal sealed in the liquid crystal cell forms segments in a matrix. The liquid crystal sealed in the liquid crystal cell and the substrate 15 are electrically connected by conductive portions of the supporting members 17 and 17.

On the surface of the liquid crystal means 3, a glass cover 19 in the shape of a semicylindrical glass is provided, and the glass cover 19 protrudes from the display opening 12 of the upper case 10. A conductive rubber body 21 on which a plurality of operation buttons (operation parts) 20... Are formed is attached to one side of the substrate 15, and the operation of the operation buttons 20. A plurality of contacts 22 are provided which are closed. This operation button 2
0 protrudes from the operation button small holes 13 of the upper case 11. A battery cover 25 having a battery 26 is provided in the lower case 11.
Are attached by appropriate means, and the battery 26 and the control device 6 are electrically connected. Also, the lower case 11
The switch 23 for turning on and off the power of the battery 26
Is attached.

[0014]

As described above, the liquid crystal display device according to the first aspect of the present invention is configured such that only a specific segment of the liquid crystal means transmits light from the illuminating means and the other segments block light. Therefore, characters, numerals, pictures, and the like can be displayed by specific segments that transmit light, and the structure is simple, compact, and can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is an overall exploded perspective view showing one embodiment of a liquid crystal display device.

FIG. 2 is a sectional view of a main part of FIG.

FIG. 3 is an explanatory diagram illustrating the contents of a liquid crystal display device.

FIG. 4 is a block diagram of a liquid crystal display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal display device 2 Device main body 3 Liquid crystal means 5 LED (illumination means) 6 Control device 10 Upper case 11 Lower case 12 Display opening 13 Small hole for operation buttons 15 Substrate 17 Support member 19 Glass cover 20 Operation button (operation part) 21 Conductive rubber 22 Contact 23 Switch 25 Battery cover 26 Battery

Claims (1)

[Claims] 1. A liquid crystal display device having the following requirements. (B) Having an apparatus body. (B) Liquid crystal means having segments formed in a matrix and illumination means for irradiating illumination light forward from the rear of the liquid crystal means are provided in the apparatus body. (C) A control device for driving and controlling each segment of the liquid crystal means is provided in the apparatus main body. (D) The control device controls so that only a specific segment of the liquid crystal unit transmits light from the illumination unit and the other segments block light.