JPH05150233A - Liquid crystal display device - Google Patents

Abstract

PURPOSE:To accomplish two kinds of display by classifying functions to a function mainly using the operation of an equipment and a function which is not usually used, disposing a display part and an operation part and confirming one liquid crystal display panel from both sides. CONSTITUTION:The liquid crystal display panel 6 is incorporated in the operation cover 3 of an electronic equipment, which can be opened and closed, and a reflector 7 is movably provided through a pivotally supporting part in a state where the reflector 7 is arranged on the back surface of the panel 6 so that display may be performed from the front surface of the panel 6 at the time of closing the cover 3 and it is arranged on the front surface of the panel 6 so that the display may be performed from the back surface of the panel 6 at the time of opening the cover 3 respectively. A mirror 12 for visually recognizing the display by inverting the liquid crystal display of the panel 6 at the time of opening the cover 3 is provided in an equipment main body 1 opposed to the cover 3, and an operation button is disposed near the mirror 12.

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 which displays its function in an electronic device such as a CD player.

[0002]

2. Description of the Related Art Conventionally, a liquid crystal display portion of a generally used CD player or the like has an operation button portion for operating a main body function and a liquid crystal display portion for displaying the function on the front side of a device main body. Is integrated as a unit,
A liquid crystal display panel for performing function display is integrally formed with a reflector for clear display.

When operating an electronic device, an operator operates an operation button while directly looking at the liquid crystal display screen from the front in a direction substantially perpendicular to the liquid crystal display screen, and draws and uses the function of the device. It was

[0004]

However, in the above-mentioned conventional device, the number of operation buttons increases as the function is improved, but since the size of the liquid crystal display screen is limited, the display characters are packed small. Therefore, since the number of operation buttons is large, it is difficult to operate, and it is difficult to understand the characters and marks of the displayed contents. In addition, since the size of the device and the size of the liquid crystal are limited to be small and thin, it is impossible to solve the problem by simply enlarging the device.

[0005]

In order to solve the above-mentioned problems, the liquid crystal display device of the present invention is provided with an operation lid having a built-in liquid crystal display panel which can be freely opened and closed in the main body of the apparatus, and when the operation lid is closed. The reflector on the back side of the LCD panel reflects light to the front side, and when the operation lid is opened, the reflector on the front side of the LCD panel reflects the light to the mirror provided on the main body of the device to make it visible. At the same time, an operation button is arranged near the mirror.

[0006]

In the liquid crystal display device of the present invention constructed as described above, the operation of the function with the operation lid closed makes the reflector plate so that the liquid crystal display can be confirmed from the front of the liquid crystal display panel. The operation can be confirmed on the liquid crystal display at the same time when the operation buttons arranged on the back side of the liquid crystal display panel and arranged on the front side of the operation lid are operated.

Further, in order to operate the function with the operation lid opened, the reflector is arranged on the front side of the liquid crystal display panel so that the liquid crystal display can be confirmed from the rear side of the liquid crystal display panel, and the rear surface of the liquid crystal display panel. You can check the liquid crystal display reversed.
The reversed liquid crystal display is reversed by a mirror provided in the device body, and can be confirmed as a normal display from the front of the liquid crystal display panel, and at the same time, the operation confirmation can be performed together with the operation of the operation button provided in the device body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the liquid crystal display device of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a schematic side cross-sectional view of an electronic device implementing the present liquid crystal display device when an operation lid is closed. 2 is a schematic side sectional view of an electronic device implementing the present liquid crystal display device when an operation lid is opened, FIG. 3 is a perspective view of FIG. 1, and FIG. 4 is a view of FIG. It is a perspective view.

1 to 4, an operation lid 3 is pivotally attached to a lower portion of the front surface of the electronic equipment main body 1 with a fixed shaft 2 as a fulcrum, and a coaxial gear 4 is fixed to the shaft 2 at an appropriate position. A rectangular through hole 5 is provided in the central portion of the operation lid 3, a liquid crystal display panel 6 is arranged corresponding to the through hole 5, and a flexible surface is provided over the front and back surfaces of the liquid crystal display panel 6. A guide groove 8 for guiding the flat reflector 7 is provided. A gear 9 integrally formed with a drum (not shown) for directly winding the reflection plate 7 is pivotally provided, and the gear 9 and the gear 4 are provided.
An intermediate gear 10 is pivotally provided between them.

Further, a plurality of operation buttons 11, 11 are provided on the front surface of the operation lid 3, for example, at both ends corresponding to the function of the electronic device.
Is provided, and a mirror 12 is attached to the central portion of the front surface of the device main body 1 facing the operation lid 3, and a plurality of operation buttons 13, 13, corresponding to the functions that are relatively infrequently used at both ends of the mirror 12.
... is provided. Reference numeral 14 denotes, for example, a micro switch, which is provided with a protrusion 14a on the operation lid 3 and a receiving portion 14b on the side of the device body 1 facing the protrusion 14a when the operation lid 3 is closed, and operated by the micro switch 14. The operation function of the operation buttons 11, 11, ... Is operated when the lid 3 is closed, and only the operation function of the operation buttons 13, 13, ... Is operated when the operation lid 3 is opened.

Since the above-described embodiment of the present invention has the above-described structure, in the state shown in FIGS. 1 and 3, the reflection plate 7 is used.
Is disposed on the back side of the liquid crystal display panel 6, it is possible to operate the desired operation button 11 while directly looking at the content of the liquid crystal display of the liquid crystal display panel 6 from the front of the electronic device, and to activate its function. In the process from the above state to the state of FIGS. 2 and 4, since the gear 4 is fixed to the fixed shaft 2,
The intermediate gear 10 meshed with the gear 4 rotates in the direction of the arrow, and the gear 9 meshed with the intermediate gear 10 rotates in the direction of the arrow. The liquid crystal display panel 6 is guided and moved by 8 to be arranged on the front side of the liquid crystal display panel 6. Therefore, from the front of the device body 1, the liquid crystal display reversely displayed on the back surface of the liquid crystal display panel 6 is the mirror 1.
It can be confirmed as a normal display by reversing by 2, and at the same time, the operation buttons 13, 13, ..., Which are provided by distributing the operation buttons for all the functions of the electronic device, can be operated.

In the process from the open state of the operation lid 3 shown in FIGS. 2 and 4 to the closed state of the operation lid 3 shown in FIGS. 1 and 3, the rotation of the gears 9 and 10 is as described above. The direction is opposite to the direction of the arrow, and the reflection plate 7 is guided and moved to the rear side of the liquid crystal display panel 6 and arranged.

Next, another embodiment of the liquid crystal display device of the present invention will be described with reference to FIGS. 5 to 10. FIG. 5 shows an electronic device in which the present liquid crystal display device is implemented and the operation lid is closed. 6 is a schematic side sectional view, FIG. 6 is a schematic side sectional view when an operation lid is opened in an electronic device implementing the present liquid crystal display device, FIG. 7 is a perspective view in FIG. 5, and FIG.
FIG. 9 is a perspective view of a reflective element of the front reflector, FIG. 9 is a perspective view of FIG. 6, and FIG. 10 is a perspective view of a reflective element of the back reflector.

5 to 10, the electronic device main body 1
An operation lid 16 is pivotally mounted on the lower part of the front surface of the operation lid with a fixed shaft 15 as a fulcrum, and a rectangular through hole 17 is provided in the central portion of the operation lid 16, and a liquid crystal display panel 18 is arranged corresponding to the through hole 17. .. constituting a front reflector on the front side of the liquid crystal display panel 18 so as to be vertically (vertically) rotatable at the upper and lower ends as shown in FIG. In addition, a shaft 22 is pivotally attached to the upper edge 20 and the lower edge 21 of the through hole 17, and a spring 23 is engaged with the shaft 22 of the reflecting element 19 to urge the α direction.
On the other hand, for example, slide type movable rods 24, 24 ... Are provided at appropriate places on the lower edge 21 of the through hole 17 in correspondence with the number of the plurality of reflective element pieces 19, 19 ,. When it is present, the lower end of the reflective element 19 is pressed against the urging force of the spring 23, and the reflective element 19 is rotated until it is substantially perpendicular to the surface of the liquid crystal display panel 18.

Further, a mirror 24 is mounted on the front surface of the apparatus main body 1 facing the operation lid 16, and a plurality of reflecting pieces 26, 26, ... So that the upper and lower ends can pivot in the vertical (vertical) direction, the upper edge 27 and the lower edge 28, on which the mirror 25 is mounted, are pivotally attached by a shaft 29,
A spring 30 is engaged with the shaft 29 of the reflecting element 26 to urge it in the β direction. On the other hand, when the movable rod 24 projects rearward, the lower end of the reflecting element 26 is moved against the urging force of the spring 30. Pressure response,
The reflecting piece 26 is rotated until it becomes parallel to the mirror 25 or the surface of the liquid crystal display panel 18.

On the front surface of the operation lid 16, operation buttons 31,
, ... on the front surface of the device body 1 with operation buttons 32, 32,
The provision of ... Is the same as in the case of the above-described embodiment. Reference numeral 33 is a micro switch, and its operation function is the same as in the case of the above-mentioned one embodiment.

Since the other embodiment of the present invention has the above-mentioned construction, in the states of FIGS. 5, 7 and 8,
.. are arranged in parallel with the liquid crystal display panel 18 to form a back reflector, so that the liquid crystal display content of the liquid crystal display panel 18 is displayed from the front of the electronic device.
The reflective element 2 arranged vertically to the surface of the liquid crystal display panel 18.
Through 6, the desired operation button 31 can be operated while directly looking at it to activate its function.

In the states shown in FIGS. 6, 9 and 10,
, Are arranged in parallel with the liquid crystal display panel 18 to form a front reflector, and the plurality of reflector pieces 26, 26 ,.
5 is arranged in front of the mirror 25 and perpendicular to the surface of the mirror 25, so that from the front of the device body 1, the liquid crystal display reversely displayed on the back surface of the liquid crystal display panel 18 is reversed by the mirror 25 and is displayed normally. , And at the same time, it is possible to operate the operation buttons 32, 32, ... Which are provided by distributing the operation buttons for all the functions of the electronic device.

The liquid crystal display device of the present invention has been described with reference to the embodiment in which it is mechanically switched. However, it is needless to say that the back reflector, in particular, the reflective element can be electrically driven by a polarizing plate using liquid crystal. Is.

[0020]

Since the liquid crystal display device according to the present invention is constructed as described above, the liquid crystal display portion for displaying the function of the electronic device and the operation portion for operating the function are divided into two. Therefore, it is possible to arrange the display portion and the operation portion by dividing the operation of the device into a function mainly used and a function not normally used. 2 expensive liquid crystal display panels
Two types of displays are possible by checking one liquid crystal display panel from both sides without using one.

[Brief description of drawings]

FIG. 1 is a schematic side cross-sectional view of an electronic device in which a liquid crystal display device of the present invention is implemented and an operation lid is closed.

FIG. 2 is a schematic side sectional view of an electronic device in which the liquid crystal display device of the present invention is implemented, when an operation lid is opened.

FIG. 3 is a perspective view of FIG.

FIG. 4 is a perspective view of FIG.

FIG. 5 is a schematic side sectional view of an electronic device in which another liquid crystal display device of the present invention is implemented and an operation lid is closed.

FIG. 6 is a schematic side sectional view of an electronic device in which another liquid crystal display device of the present invention is implemented and an operation lid is opened.

FIG. 7 is a perspective view of FIG.

FIG. 8 is a perspective view of a reflective element of the front reflector in FIG.

FIG. 9 is a perspective view of FIG.

FIG. 10 is a perspective view of a reflective element of the back reflector in FIG.

[Explanation of symbols]

 1 Electronic Equipment Main Body 3,16 Operation Lid 5,17 Through Hole 6,18 Liquid Crystal Display Panel 7 Reflector 12,25 Mirror 19,26 Reflective Element 11, 13, 31, 32 Operation Button

Claims (2)

[Claims] 1. In an electronic device requiring a liquid crystal display, a liquid crystal display panel is built in an operation lid that can be opened and closed, and a liquid crystal display is provided on a reflector so that the operation lid can be displayed from the front surface of the liquid crystal display panel. The reflector is placed on the back of the panel and on the front of the liquid crystal display panel so that it can be displayed from the back of the liquid crystal display panel when the operation lid is opened.
Provided with the reflection plate that moves via the pivotal support, a mirror for observing the liquid crystal display of the liquid crystal display panel when the operation cover is opened is provided in the device body facing the operation cover, and operated near the mirror. A liquid crystal display device with buttons. 2. In an electronic device requiring a liquid crystal display, a liquid crystal display panel is built in an operation lid that can be opened and closed, and a plurality of reflecting pieces are rotatably pivoted on the front side of the liquid crystal display panel of the operation lid. And a front reflector is attached to the operation lid, and a plurality of reflection pieces are rotatably pivotally attached to the device body side facing the liquid crystal display panel of the operation lid to provide a back reflector, and the front lid when the operation lid is closed. The reflective element of the reflector is almost perpendicular to the liquid crystal display panel surface,
The reflective element of the back reflector is arranged parallel to the liquid crystal display panel surface, and when the operation lid is opened, the reflective element of the front reflector is parallel to the liquid crystal display panel surface and the reflective element of the back reflector is the liquid crystal. A mirror that is provided so as to be arranged substantially vertically to the display panel surface is provided in conjunction with opening and closing of the operation lid, and a mirror for observing the liquid crystal display of the liquid crystal display panel when the operation lid is opened is opposed to the operation lid. A liquid crystal display device in which a back reflector is provided in the main body of the device, and operation buttons are arranged near the mirror.