JP2002062817A - Display device, display method and video apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that the check of the display of an operating state from remote is heretofore not possible in the case of a luminous display having a background which does not allow the transmission of light. SOLUTION: The display device 100 having a fluorescent display tube 22 (luminous display) for making display by emitting light and a microcomputer 21 (control means) for controlling the display of the fluorescent display tube 22 is provided with a half prism 24 (translucent mirror) which allows the transmission of the LED 23 (luminous element) light emitted by controlling with the microcomputer 21 and the light from the fluorescent display tube 22 and reflects the light from the LED 23. The area for displaying the operating state may be taken larger by superposing light from the LED 23 on the display of the fluorescent display tube 22 and therefore the display of the operating state may be checked from remote even with the fluorescent display tube 22 having the background which does not allow the transmission of the light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a display device, a display method, and a video device.

[0002]

2. Description of the Related Art Conventionally, this type of display device has a fluorescent display tube comprising a plurality of segments for displaying numerical values and a plurality of small characters for displaying the operation state of the main body. In the case of a display device attached to a video device, the display device displays operating states such as recording, reproduction, fast forward, and rewind of a video tape by lighting a character. In addition, Japanese Patent Application Laid-Open No. 4-13662
The display device disclosed in Japanese Patent Publication No. 3 (JP-A) No. 3 is also known. In this display device, light from a plurality of light-emitting diodes having different emission colors is transmitted through a liquid crystal display element to illuminate a display segment or its background. Then, one or a combination of two or more light emitting diodes is selected according to the mode set on the operation panel, and power is supplied to the selected light emitting diode. Then, the user can visually recognize the mode display even from a long distance by the color of the light transmitted through the liquid crystal display element.

[0003]

The above-mentioned conventional display device has the following problems. In the former display device, since the character is small, it is difficult to distinguish the character from a distance, and the display of the operation state cannot be confirmed. Further, in the latter display device, although it is possible to confirm the operation state from a distance, it cannot be applied to a light emitting display having a background that does not transmit light, such as a fluorescent display tube. The same applies to the display device disclosed in Japanese Patent Laid-Open No. 4-190596. The present invention has been made in view of the above problems, and provides a display device, a display method, and a video device that enable a display of an operation state to be confirmed from a distance even if the display device has a background that does not transmit light. With the goal.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a light emitting display which emits light for displaying, a control means for controlling the display of the light emitting display, and a control means for controlling the light emitting display. The light-emitting device emits light under the control of the means, and a semi-transparent mirror that transmits light from the light-emitting display body and reflects light from the light-emitting device.

[0005] In the invention according to claim 1 configured as described above, the light from the light-emitting display member which performs display under the control of the control means passes through the semi-transparent mirror. On the other hand, light from the light emitting element that emits light under the control of the control means is reflected by the semi-transparent mirror. Then, the user can see the display of the light-emitting display body through the semi-transparent mirror and also can visually recognize the light from the light-emitting element reflected by the semi-transparent mirror. That is, light from the light-emitting element can be superimposed on the display of the light-emitting display body, and the area for displaying the operation state can be increased. Therefore, it is possible to confirm the display of the operation state from a distance. As a result, for example, when a remote controller is provided in a main body including the present display device, it is possible to operate the remote controller while viewing the display of the display device from a distance. Further, in order to reflect light from the light emitting element, the light emitting display may have a background that does not transmit light. Further, since it is not necessary to provide a small character on the light emitting display, the display surface of the light emitting display can be enlarged.

Here, the control means only needs to be able to control the display of the light emitting display and the lighting of the light emitting element. For example, a microcomputer having a D / A conversion function and having a plurality of D / A conversion output terminals may be connected to the light emitting display and the light emitting element for control. The display of the light-emitting display and the lighting of the light-emitting element may be controlled by a control circuit in which a plurality of ICs or the like are combined instead of the microcomputer, and the configuration is various.

[0007] The semi-transparent mirror only needs to be able to transmit light from the light emitting display and reflect light from the light emitting element. For example, a half mirror in which a metal film is provided on one surface of a transparent plate may be used, or a half prism formed in a prism shape may be used, and various types can be applied. Further, as an example of the arrangement of the semi-transmissive mirror, the invention according to claim 2 is the display device according to claim 1, wherein the semi-transparent mirror is arranged obliquely to a transmission direction of light from the light emitting display. A transmissive surface that transmits light from the light emitting display, and a reflective surface formed on the back surface of the transmissive surface and that reflects light from the light emitting element in substantially the same direction as light transmitted from the light emitting display. Is provided.

[0008] In the invention according to claim 2 configured as described above, light from the light-emitting display body passes through the semi-transparent mirror from the transmission surface. Further, light from the light emitting element is reflected on a reflection surface formed on the back surface of the transmission surface. Here, the reflecting surface is
The light from the light emitting element is reflected in a direction substantially the same as the direction of transmission of the light from the light emitting display. Then, light from the light emitting element is clearly recognized from the direction in which the light emitting display is viewed. Therefore, the display of the operation state can be clearly confirmed even from a distance.

According to a third aspect of the present invention, as a configuration example of the reflecting surface of the semi-transparent mirror, in the display device according to the second aspect, the reflecting surface is matted. In the invention according to claim 3 configured as described above, the light from the light emitting element is reflected so as to be finely scattered on the matte reflecting surface. That is, the position and the shape of the light emitting element are hardly visually recognized, and the appearance can be improved.

It is sufficient that the light-emitting display is capable of emitting light under the control of the control means to perform display, and the light-emitting element is only required to be capable of emitting light under the control of the control means.
As an example of the specific configuration, the invention according to claim 4 is the display device according to claim 1, wherein the light emitting display is a fluorescent display tube, and the light emitting element is
The configuration is a light emitting diode. In the invention according to claim 4 configured as described above, light from the fluorescent display tube passes through the semi-transparent mirror, and light from the light emitting diode is reflected by the semi-transparent mirror. That is, it is possible to provide a specific example in which light from the light emitting diode can be superimposed on the display of the fluorescent display tube, and the display of the operation state can be confirmed from a distance. Of course, the configuration in which the light emitting display is a fluorescent display tube and the light emitting element is a light emitting diode is merely an example. For example, the light-emitting display may be a light-emitting diode and the light-emitting element may be a lamp.

According to a fifth aspect of the present invention, as a configuration of the light emitting element, in the display device according to any one of the first to fourth aspects, the light emitting element emits light from the light emitting display. The configuration is different in color. In the invention according to claim 5 configured as described above, even if the light-emitting element emits light, it is possible to visually recognize the display of the light-emitting display body that is different from the light-emitting color of the light-emitting element. That is, the display of the light-emitting display body can be confirmed even while the operation state is being displayed.

Further, as an example of the configuration of the light emitting element, the invention according to claim 6 is the display device according to any one of claims 1 to 5, wherein the light emitting element has a plurality of elements having different emission colors. Is constituted.
In the invention according to claim 6 configured as described above, it is possible to change the color of light from the light emitting element.
Therefore, the operating state can be displayed in a plurality of colors, and it is easy to confirm the plurality of operating states.

When a plurality of light emitting elements are provided, all of them may be lit and displayed, or only some of them may be lit and displayed. As an example of controlling the turning on or off of the light emitting element, the invention according to claim 7 is the display device according to any one of claims 1 to 6, wherein the light emitting element is arranged in a plurality of substantially linearly; The control means is configured to turn on or off the light emitting elements in the order in which the light emitting elements are arranged. In the invention according to claim 7 configured as described above, the plurality of light emitting elements arranged substantially linearly turn on or off in the order in which they are arranged. Therefore, the appearance can be improved. Of course, the timing of turning on or off may be changed according to the operating state. In this case, the operating state can be confirmed from the turning on or off timing.

Further, control for changing the direction of reflection of light from the light emitting element may be performed. As an example, the invention according to claim 8 relates to the display device according to any one of claims 1 to 7. , The semi-transparent mirror is provided to be tiltable,
The control means includes a tilting mechanism for tilting the semi-transparent mirror. In the invention according to claim 8 configured as described above, the tilting mechanism tilts the semi-transparent mirror. Then, the reflection direction of light from the light emitting element reflected by the semi-transparent mirror changes. That is, the appearance of light from the light emitting element changes, and the appearance can be improved. Of course, the tilting timing may be changed according to the operating state, and in this case, the operating state can be confirmed from the tilting timing.

Further, control for changing the color of light from the light emitting element may be performed. As an example, the invention according to claim 9 is the display device according to any one of claims 1 to 8, A transparent film, which is interposed between the light emitting element and the semi-transparent mirror and has a plurality of colors, and a drive mechanism for moving the transparent film are provided. In the ninth aspect of the present invention, the light from the light emitting element is transmitted through the transparent film having a plurality of colors and reflected by the semi-transparent mirror.
A drive mechanism moves the transparent film. Then, the color of the transparent film that transmits light from the light emitting element changes. That is, the color of the light from the light emitting element changes, and the appearance can be improved. Further, the operating state can be displayed in a plurality of colors, and the plurality of operating states can be confirmed from a distance.

If the color of the display changes, it can be visually recognized from a distance. Therefore, a configuration may be adopted in which the color of the light from the light emitting display is changed. As an example of the configuration, the invention according to claim 10 controls the light emitting display that emits light to perform display and the display of the light emitting display. Control means for transmitting light from the light-emitting display body, a transparent film having a plurality of colors, and a driving mechanism controlled by the control means to move the transparent film. .

In the tenth aspect of the present invention, the light from the light-emitting display member which performs display under the control of the control means passes through the transparent film having a plurality of colors. A drive mechanism moves the transparent film. Then, the color of the transparent film that transmits light from the light emitting display changes. That is, since the color of the light from the light emitting display changes, the operation state can be displayed by the change in color. Further, since the color of the entire light of the light emitting display changes, it is possible to confirm the display of the operation state from a distance. Of course, the light-emitting display may have a background that does not transmit light.

Here, as an example of the driving mechanism according to claim 9 or claim 10, the invention according to claim 11 is the display device according to claim 9 or claim 10, wherein A first and a second winding shaft provided substantially parallel to wind the transparent film in directions opposite to each other, and a tension applying mechanism for applying a rotational force in the winding direction to the first winding shaft. And a rotation drive mechanism for driving the second winding shaft to rotate.

In the invention according to the eleventh aspect, the first winding shaft for winding the transparent film is provided with a rotating force in a winding direction by a tension applying mechanism to apply a tension to the transparent film. Give. Similarly, the second winding shaft for winding the transparent film is rotationally driven by a rotary drive mechanism to wind and unwind the transparent film. Here, the first winding shaft is provided substantially in parallel with the second winding shaft, and applies tension so that the transparent film is wound in a direction opposite to the winding direction of the second winding shaft. Therefore, when the second winding shaft is rotationally driven, the transparent film moves in a direction perpendicular to both winding shafts. That is, a drive mechanism for moving the transparent film is configured.

According to a twelfth aspect of the present invention, as an example of a tension applying mechanism or a rotation driving mechanism, in the display device according to the eleventh aspect, the tension applying mechanism winds the first winding shaft. Equipped with a mainspring that biases in the direction,
The rotation drive mechanism is configured to include a motor controlled by the control means and linked to the second winding shaft. In the invention according to claim 12 configured as described above, the mainspring biases the first winding shaft in the winding direction to apply tension to the transparent film.
On the other hand, the motor is controlled by the control means to rotationally drive the second winding shaft. That is, the tension applying mechanism and the rotation driving mechanism are configured with a simple configuration, and even if the background has a light-impermeable background, the display of the operation state can be confirmed from a distance.

The method of enabling the display of the operating state to be confirmed from a distance even if the background has a light-impermeable background is not necessarily limited to a substantial device. Thus, as one example, the invention according to claim 13 includes a light emitting display that emits light and performs display, a control unit that controls the display of the light emitting display, and a light emitting element that emits light under the control of the control unit. The light from the light emitting display is transmitted through a semi-transparent mirror, and the light from the light-emitting element is reflected by the semi-transparent mirror to perform display. According to a fourteenth aspect of the present invention, there is provided a light emitting display which emits light to perform display, control means for controlling the display of the light emitting display, light from the light emitting display being transmitted, and a plurality of the same colors. And a display which moves by moving the transparent film under the control of the control means. That is, the present invention is not necessarily limited to a substantial display device, and is also effective as a display method.
1. Needless to say, the configuration described in claim 12 can correspond to the method.

By the way, as a specific application example of the present display device, the invention according to claim 15 is a video device having a display device for displaying an operation state of a loaded video tape, wherein the display device comprises: A fluorescent display tube that emits light for display, a control unit that controls display of the fluorescent display tube, and a plurality of light emitting diodes that emit different colors according to the operation state by being controlled by the control unit, A transmission surface that is disposed obliquely to a transmission direction of light from the fluorescent display tube and transmits light from the fluorescent display tube,
A semi-transparent mirror formed on the back surface of the transmission surface and having a reflection surface for reflecting the light from the light emitting diode in a direction substantially the same as the light transmission direction from the light emitting diode. The invention according to claim 16 is a video device having a display device for displaying an operation state of a loaded video tape, the display device comprising: a fluorescent display tube which emits light for displaying; Control means for controlling the display of the tube, and a light-transmitting light from the fluorescent display tube, a transparent film having a plurality of colors, and a transparent film provided substantially parallel to wind the transparent film in opposite directions. A first and a second winding shaft, and a mainspring biasing the first winding shaft in a winding direction;
A motor controlled by the control means and interlocked with the second winding shaft is provided. That is, the present invention is also effective as a video device having the above specific configuration.

[0023]

As described above, according to the present invention, it is possible to provide a display device capable of confirming the display of the operation state from a distance even if the display device has a background that does not transmit light. Further, according to the second aspect of the invention, it is possible to clearly confirm the display of the operation state even from a distance. Furthermore, according to the third aspect of the present invention, the position and shape of the light emitting element are hardly visually recognized, and the appearance can be improved.

Further, according to the invention according to claim 4,
It is possible to provide a specific example in which the display of the operation state can be confirmed from a distance. Furthermore, according to the invention according to claim 5, it is possible to confirm the display of the light emitting display even while the operation state is being displayed. Furthermore, according to the invention according to claim 6, the operating state can be displayed in a plurality of colors, and it is easy to confirm the plurality of operating states.

Further, according to the invention of claim 7,
Since the light emitting elements are turned on or off in the order in which the plurality of light emitting elements arranged in a substantially straight line are arranged, it is possible to improve the aesthetic appearance. Furthermore, according to the invention according to claim 8, the appearance of light from the light emitting element changes, so that the appearance can be improved. Furthermore, according to the ninth aspect of the present invention, the color of light from the light emitting element is changed, and it is possible to improve the aesthetic appearance.

Further, according to the tenth aspect of the present invention, it is possible to confirm the display of the operating state from a distance even if the background has a light-impermeable background. Further, according to the eleventh aspect of the present invention, the driving mechanism for moving the transparent film is configured, and even if it has a background that does not transmit light, it is possible to confirm the display of the operating state from a distance. Further, according to the twelfth aspect of the present invention, the tension applying mechanism and the rotation driving mechanism are configured with a simple configuration, and even if there is a background that does not transmit light, the display of the operation state can be confirmed from a distance. It is.

According to the thirteenth and fourteenth aspects of the present invention, even if there is a background that does not transmit light,
It is possible to provide a display method that enables the display of the operation state to be confirmed from a distance. Further, claim 1
According to the invention according to claim 16, it is possible to provide a video device having a display device that enables a display of an operation state to be confirmed from a distance even if the device has a background that does not transmit light.

[0028]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a video device incorporating a display device 100 according to the present invention. In the present embodiment, the microcomputer 2
1 constitutes a part of the display device 100. And
The microcomputer 21 realizes a function as a video device by centrally controlling the entire video device. The tuner 11 receives a television signal from a desired broadcast station based on a predetermined tuning signal transmitted from the microcomputer 21. The tuner 11 is connected to a signal circuit 12 and inputs a received television signal to the signal circuit 12.

At the time of video recording, the signal system circuit 12 separates the input television signal, performs FM modulation and low-frequency conversion, and then mixes and amplifies the signal. Then, the signal is output to a head system circuit (not shown) provided in the drive system circuit 13. On the other hand, at the time of video reproduction, the signal system circuit 12 extracts a luminance signal and a carrier chrominance signal from the signal reproduced by the head system circuit in the drive system circuit 13. Then, after performing a process such as amplification on a reproduction signal from the video head, YC mixing is performed and a composite video signal is output via an RCA pin plug. As for the audio signal, the reproduction signal from the audio head is reproduced and output. Note that switching between video recording and video reproduction is performed based on a recording / reproduction switching signal sent from the microcomputer 21. Of course, in order to obtain a video output, it is not always necessary to adopt the above-mentioned mode, and an RF signal may be output via an RF converter.

The drive system circuit 13 includes a tape drive system circuit (not shown) such as a reel motor or a capstan motor for driving and driving the video tape. The rotation speed of the reel motor, the capstan motor, and the above-described cylinder motor of the video head are controlled by a servo system circuit (not shown) provided in the drive system circuit 13 and driven. Then, the microcomputer 21 controls the tape running system circuit via the servo system circuit to execute FF / REW running, reproduction running, and the like.

The video apparatus can instruct processing such as video recording and video reproduction from the remote controller 14. Then, the microcomputer 21 detects an operation content of the remote controller 14 and executes a corresponding process. Microcomputer 21
Controls the tuner 11, the signal system circuit 12, and the drive system circuit 13 as described above, and reads and sets the time of the clock circuit 15. In addition, the display of the fluorescent display tube 22 in the display device 100 is controlled in accordance with the time of the clock circuit 15, the operation state of the video tape, and the operation of the remote controller 14, and the lighting of the light emitting diode (LED) 23 is controlled. And so on. More specifically, the microcomputer 21 includes a CPU, a ROM, and a RAM,
CPU while using M as a temporary work area
The program recorded in the ROM is executed based on the control of.

FIG. 2 is a front view of the display device 100 according to the present invention as viewed from the front, and FIG. 3 is a side view as viewed from the left side thereof. In these figures, the fluorescent display tube 22 constituting the light emitting display according to the present invention has a plurality of terminals 22a provided at a lower portion, and the terminals 22a are connected to the printed circuit board 31. The printed circuit board 31 stands upright with the display surface 22b facing the front. The fluorescent display tube 22 performs a so-called seven-segment display in which one numerical value is displayed in seven cells. Each cell is an anode, and when a predetermined voltage is applied between the cell and an opposite cathode, electrons are emitted from the cathode and collide with the anode to emit green light. That is, when the voltage applied to each anode is controlled, a predetermined numerical value is displayed by light emission.
A microcomputer 21 having a D / A conversion function is mounted on the printed board 31, and the microcomputer 21 controls the display of the fluorescent display tube 22. The direction of light from the fluorescent display tube 22 is the direction of the front half prism 24.

Above the half prism 24, a plurality of LEDs 23 constituting the light emitting element according to the present invention are mounted on the lower surface of the LED substrate 32. Multiple LEDs 23
Is composed of a plurality of blue LEDs 23a and a plurality of red LEDs 23b (four in this embodiment) each having a light emission color different from the green color of the fluorescent display tube 22. These blue LEDs 23a and red LEDs 23b are arranged alternately and substantially linearly in the left-right direction with reference to the direction in which the fluorescent display tube 22 is viewed. The light emitting surface of the LED 23 is directed slightly downward from below so that the direction of the emitted light is slightly downward from below. Then, the microcomputer 21 controls lighting of the plurality of LEDs 23.

The half prism 24 is formed of a substantially triangular prism-shaped transparent resin. The transmission surface 24a faces the display surface 22b of the fluorescent display tube 22, the substantially horizontal upper surface 24c faces the LED 23, and the substantially vertical front surface 24d is fixed to the front. The transmission surface 24a is thinly coated with a metal, and transmits light from the fluorescent display tube 22. The transmission surface 24
“a” is inclined so that the lower side is forward than the upper side in the vertical cross section in the front-rear direction, and is disposed so as to be oblique to the transmission direction of light from the fluorescent display tube 22. Further, the reflection surface 24 formed on the back surface of the transmission surface 24a
b reflects light from the LED 23 provided above in the forward direction substantially in the same direction as the direction of transmission of light from the fluorescent display tube 22. That is, the transmitting surface 24a and the reflecting surface 24b of the half prism 24 constitute a semi-transparent mirror according to the present invention. The vertical direction of the front surface 24d through which the light from the fluorescent display tube 22 and the LED 23 transmits to the outside is longer than the front and rear direction of the upper surface 24c where the light from the LED 23 enters. Therefore, the light emitting surface of the LED 23 is directed slightly backward from below, and the LED 23
The direction of the light from is set to be substantially forward.

FIG. 4 is a flowchart showing the display control performed by the microcomputer 21. In the figure, first,
It is determined whether the video tape is in operation (step S
100). If not in operation, the time is displayed on the fluorescent display tube 22 (step S105), and this flow ends.
If the video tape is in operation, the count of the video tape is displayed (step S110). Then, the operation state is determined (step S115), and thereafter, processing according to each operation state is performed. When the operation state is the reproduction state, the blue LEDs 23a are repeatedly turned on or off in the order in which they are arranged (step S120). The timing at this time is shown in FIG. The blue LED 23a shown in FIG.
LED1, LED2, LED3, LED from left to right
It is set to 4. The LED 1 is turned on at the timing T1, and the LED 2 on the right side is turned on at the timing T2. At the timing T3, the LED 3 on the right side is turned on,
Turn off LED1. At timing T4, LED4 on the right of LED3 is turned on, and LED2 on the right of LED1 is turned on.
Turn off the light. At timing T5, LED1 is turned on again, and LED3 on the right side of LED2 is turned off. Less than,
Similarly, the right LED is sequentially turned on or off, and if there is no right LED, LED1 is turned on or off. Then, as shown in FIG.
3a is turned on or off in order from the left.
This process is performed during the playback of the video tape. When the playback is completed, the process ends, and the present flow ends.

When the operation state is the recording state, the red L
The EDs 23b are repeatedly turned on or off in the order in which they are arranged (step S125). The timing at this time is the same as that for the blue LED 23a. Step S
The process of 125 ends when the recording is completed, and the flow ends. When the operation state is the fast-forward state, all the blue LEDs 23a blink at the same time (step S1).
30). When the operation state is the rewinding state, all the blue LEDs 23a are simultaneously turned on (Step S).
135). These processes end when fast-forwarding or rewinding ends, and the flow ends. As described above, the processing of the microcomputer 21 for controlling the display of the fluorescent display tube 22 and the lighting of the LED 23 constitutes the control means according to the present invention.

Next, the display device 10 constructed as described above is used.
The operation of 0 will be described. FIG. 7 shows a half prism 2
4 schematically shows the state of light passing through No. 4. In the figure, light emitted forward from a display surface 22b of a fluorescent display tube 22 is reflected by a half prism 2 formed of a thin metal film.
4 and passes through the front surface 24d of the half prism 24. Then, the user of the video device,
The display on the fluorescent display tube 22 can be viewed through the half prism 24. On the other hand, light emitted from the LED 23 downward and slightly behind is reflected by the reflection surface 24b of the half prism 24 and passes through the front surface 24d of the half prism 24. Then, the user can also check the light from the LED 23.

Here, the LED 2 is displayed on the fluorescent display tube 22.
Since the lights from 3 can be overlapped, the area for displaying the operating state can be increased. Therefore, it is not necessary to confirm a small character provided on the fluorescent display tube 22 to display the operation state as in the related art, and the display of the operation state can be visually recognized from a distance. As a result, it is suitable for operating the remote controller 14 from a distance. In addition, since the display of the operation state is performed by reflecting the light from the LED 23, it can be applied to a light-emitting display body of a background that does not transmit light, such as the fluorescent display tube 22. Further, since it is not necessary to provide a small character on the light emitting display, the display surface of the light emitting display can be enlarged. Further, at the time of video tape reproduction or recording, as shown in FIG. 6, the LEDs 23 are turned on or off in the order in which the LEDs 23 are arranged, so that the appearance is improved.

Since the reflecting surface 24b is provided to reflect the light from the LED 23 substantially forward, LE
The direction of the light emitted from D23 and reflected by the reflection surface 24b is substantially the same as the direction of the light from the fluorescent display tube 22 transmitted through the transmission surface 24a. Further, the emission color of the LED 23 is different from that of the fluorescent display tube 22. Then, the light from the LED 23 can be clearly recognized from the front while checking the display of the fluorescent display tube 22. Therefore, it is possible to clearly confirm the display of the operation state even from a distance.

In the above embodiment, a half prism is used as the semi-transparent mirror, but a semi-transparent mirror other than the half prism may be used. FIG. 8 shows the display device according to the second embodiment as viewed from the left side. In the figure, a half mirror 44 is used instead of the above-described half prism 24. The half mirror 44 is formed of a substantially flat transparent resin. The transmission surface 44a facing the fluorescent display tube 42 is thinly coated with a metal like the half prism 24 so as to transmit light from the fluorescent display tube 42. Also, a matte reflecting surface 44b is formed on the back surface of the transmitting surface 44a, and the L
The light from the ED 43 is reflected forward in substantially the same direction as the transmission direction of the light from the fluorescent display tube. That is, even if such a half mirror 44 is used, the above-described half prism 2
The same effect as in No. 4 can be obtained, and the display of the operating state can be confirmed from a distance even in a background where the light emitting display does not transmit light. The light from the LED 43 is reflected by the matte reflecting surface 44b so as to be scattered finely. Therefore, the position and shape of the LED 43 are hard to be visually recognized, and the appearance is improved.

The half mirror 44 has an upper end rotatably hooked and tiltably provided. The cam 41a is in contact with the lower side of the transmission surface 44a, and the cam 41a rotates in accordance with the rotation of a motor (not shown) controlled by the microcomputer 41, and the half mirror 44 tilts with the upper end as the center of rotation. Then, as shown in FIG. 8, the reflection direction of the light from the LED 43 reflected by the half mirror 44 changes. That is, the appearance of light from the LEDs 43 changes, and the appearance of the appearance improves. And the cam 41a,
The motor that rotationally drives the cam 41a and the microcomputer 41 that controls the rotation of the motor constitute a tilting mechanism according to the present invention.

Here, even if the LED 43 is constantly turned on, if the cam 41a is driven according to the operation state of the video tape, the operation state can be visually recognized from a distance. For example, if the cam 41a is driven at a relatively fast rotation in the fast-forward state and is driven at a relatively slow rotation in the reproduction state, the fast-forward state is when the change in the light from the LED 43 reflected by the half mirror 44 is fast. If the change is slow, it can be confirmed that the playback state has been reached. Of course, a semi-transparent mirror other than the above-described half prism 24 and half mirror 44 may be used. For example, the reflective surface may be a curved surface, and various types of semi-transparent mirrors may be used.

Incidentally, in order to display the operating state of the video tape, control for changing the color of light from the light emitting element may be performed. FIG. 9 shows a display device according to the third embodiment as viewed from the left side. In FIG.
3 emits white light. A transparent film 55 is interposed substantially horizontally between the LED 53 and the half prism 54. Looking at the transparent film 55 from below,
As shown in FIG. 10, the front side is a red portion 55a, and the rear side is a blue portion 55b. The front side of the transparent film 55 is wound and supported by a first winding shaft 56a provided in the left-right direction (left-hand winding in FIG. 9). Also,
The rear side of the transparent film 55 is wound on a second winding shaft 56b provided substantially in parallel with the first winding shaft 56a behind the first winding shaft 56a (in FIG. 9, the right side in FIG. 9). Winding), is supported. That is, the first winding shaft 5
6a and the second winding shaft 56b wind the transparent film 55 in directions opposite to each other. Then, the red portion 55a is wound around the first winding shaft 56a, and the blue portion 55b is wound around the second winding shaft 56b.

A spring 56c for urging the first winding shaft 56a in the winding direction is attached to one end of the first winding shaft 56a. That is, the front side of the transparent film 55 is provided with the tension F1 in the forward direction. In this sense, the spring 56c constitutes the tension applying mechanism according to the present invention. On the other hand, a gear 56d is attached to one end of the second winding shaft 56b. Gear 56
d meshes with a gear 56f attached to a rotating shaft of a motor 56e that can rotate bidirectionally, and the motor 56e is driven to rotate in conjunction with the second winding shaft 56b. Here, since the motor 56e is controlled by the microcomputer 51, the second winding shaft 56b winds and unwinds the transparent film 55 while being controlled by the microcomputer 51. That is, the microcomputer 51 and the motor 56e constitute a rotation drive mechanism according to the present invention for driving the second winding shaft 56b to rotate. Then, both winding shafts 56a,
The drive mechanism 56b, the tension applying mechanism, and the rotary drive mechanism constitute the drive mechanism according to the present invention.

When the motor 56e rotates the second take-up shaft 56b in the take-up direction under the control of the microcomputer 51, the blue portion 55b of the transparent film 55 is moved to the second take-up position as shown in FIG. It is wound around the shaft 56b. Then, the light from the LED 43 passes through the red portion 55a and enters the upper surface of the half prism 54. Then
The light from the LED 43 is changed to red and reflected by the reflecting surface 54b, and is made to travel in substantially the same direction as the light from the fluorescent display tube 52. Therefore, the operating state of the video tape can be displayed in red. When the motor 56e rotates the second winding shaft 56b in the unwinding direction under the control of the microcomputer 51, the urging force of the mainspring 56c causes the motor 56e to rotate.
The red portion 55a of the transparent film 55 is the first winding shaft 5
6a (the state of FIG. 10). And LED
The light from 43 passes through the blue portion 55b and is incident on the upper surface of the half prism 54, is changed to blue, and is reflected by the reflection surface 54b.
Reflected by Therefore, the operation state of the video tape can be displayed in blue. The transparent film 55
It is also possible to add three or more colors to the image. For example, if a yellow portion is provided on the rear side of the blue portion 55b in FIG. 10 and the winding amount of the second winding shaft 56b is controlled, the operation state can be displayed in three colors of red, blue, and yellow. It becomes possible.

By the way, if the color of the display changes, it becomes possible to visually recognize the display from a distance, so that the color of the light from the light emitting display may be changed instead of the light emitting element such as an LED. FIG. 12 shows a display device according to the fourth embodiment viewed from the left side. In FIG.
No ED is provided. A transparent film 65 is provided in front of the fluorescent display tube 62 so as to be substantially vertical and parallel to the left and right directions. The structure of the transparent film 65 is
Since it is the same as the above-mentioned transparent film 55, detailed description is omitted. Note that a first winding shaft 66a is provided below the transparent film 65, and a second winding shaft 66b provided substantially parallel to the first winding shaft 66a is provided above the transparent film 65. The transparent film 6
5 is arranged upside down from FIG. 10, with the red part on the lower side and the blue part on the upper side.

When the motor 66e drives the second take-up shaft 66b to rotate in the take-up direction under the control of the microcomputer 61, the blue portion of the transparent film 65 is taken up by the second take-up shaft 66b. Then, the light from the fluorescent display tube 62 passes through the red portion. Then, the fluorescent display tube 62
Since the light from the video tape can be changed to a reddish color, the operating state of the video tape can be displayed in a reddish color. On the other hand, when the motor 66e rotates the second take-up shaft 66b in the unwinding direction under the control of the microcomputer 61, the urging force of the mainspring 66c causes the transparent film 65b to rotate.
Is wound on the first winding shaft. And
Since the light from the fluorescent display tube 62 passes through the blue portion and can be changed to a bluish color, the operation state of the video tape can be displayed in a bluish color. That is, since the color of the light from the light emitting display changes, the operation state can be displayed by the change in color. Further, since the color of the entire light of the light emitting display changes, it is possible to confirm the display of the operating state from a distance even if a light emitting display of a background that does not transmit light is used.

As described above, according to the present invention, since the light from the light emitting element can be superimposed on the display of the light emitting display or the color of the light from the light emitting display can be changed, the operation state can be displayed. The area can be increased. Therefore, it is possible to provide a display device, a display method, and a video device that enable a display of an operation state to be confirmed from a distance even if the display device has a background that does not transmit light.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a video device incorporating a display device according to the present invention.

FIG. 2 is a front view showing the display device according to the present invention as viewed from the front.

FIG. 3 is a side view showing the display device according to the present invention as viewed from the left side surface.

FIG. 4 is a flowchart illustrating display control performed by a microcomputer.

FIG. 5 is a timing chart showing the timing of turning on and off the LED.

FIG. 6 is a diagram showing lighting of an LED during video tape reproduction.

FIG. 7 is a schematic diagram showing a state of light passing through a half prism.

FIG. 8 is a side view showing the display device according to the second embodiment as viewed from the left side surface.

FIG. 9 is a side view showing the display device according to the third embodiment as viewed from the left side surface.

FIG. 10 is a bottom view showing the transparent film viewed from below.

FIG. 11 is a bottom view showing a state where the transparent film is wound in a winding direction of a second winding shaft.

FIG. 12 is a side view showing a display device according to a fourth embodiment as viewed from a left side surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 ... Microcomputer 22 ... Fluorescent display tube 23 ... Light emitting diode 23a ... Blue LED 23b ... Red LED 24 ... Half prism 24a ... Transmissive surface 24b ... Reflective surface 41a ... Cam 43 ... Light emitting diode 44 ... Half mirror 44a ... Transmissive surface 44b ... Reflection Surface 51 ... Microcomputer 52 ... Fluorescent display tube 53 ... Light emitting diode 54 ... Half prism 54b ... Reflective surface 55 ... Transparent film 55a ... Red part 55b ... Blue part 56a ... First winding shaft 56b ... Second winding shaft 56c ... Spring 56e ... Motor 61 ... Microcomputer 62 ... Fluorescent display tube 65 ... Transparent film 66a ... First winding shaft 66b ... Second winding shaft 66c ... Spring 66e ... Motor 100 ... Display device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 27/34 G11B 27/34 Z 5G435 H01L 33/00 H01L 33/00 L H04N 5/7826 H04N 5/782 Z F term (reference) 5C018 HA09 5C094 AA01 AA14 AA48 AA51 AA56 BA08 BA23 BA33 BA67 BA92 CA14 CA18 CA24 DA02 DB01 ED02 ED11 ED13 FA10 GA10 HA10 5C095 AA15 BA13 BB07 BB09 CC01 DA02 EE02 CB05A01 BB34 DC07 EE23 EE25 FF01 5G435 AA01 AA04 BB01 BB04 CC05 CC09 CC12 CC13 DD05 DD11 EE11 FF02 FF03 FF06 GG09 GG10 GG12 GG13 GG23 GG26 HH03 KK03 LL03

Claims (16)

[Claims] 1. A light emitting display which emits light to perform display, control means for controlling display of the light emitting display, a light emitting element which emits light under the control of the control means, and a light from the light emitting display. A display device, comprising: a semi-transmissive mirror that transmits light and reflects light from the light-emitting element. 2. The display device according to claim 1, wherein the semi-transparent mirror is disposed obliquely to a transmission direction of light from the light-emitting display body and transmits light from the light-emitting display body. And a reflection surface formed on the back surface of the transmission surface to reflect light from the light emitting element in a direction substantially the same as the light transmission direction from the light emitting display. 3. The display device according to claim 2, wherein the reflection surface has a matte finish. 4. The display device according to claim 1, wherein the light-emitting display is a fluorescent display tube, and the light-emitting element is a light-emitting diode. 5. The display device according to claim 1, wherein the light emitting element emits light of a different color from that of the light emitting display. 6. The display device according to claim 1, wherein the light-emitting element includes a plurality of elements having different emission colors. 7. The display device according to claim 1, wherein the plurality of light-emitting elements are arranged in a substantially straight line, and the control means turns on the light-emitting elements in the order in which the light-emitting elements are arranged. Alternatively, the display device is turned off. 8. The display device according to claim 1, wherein the semi-transparent mirror is provided to be tiltable, and the control means includes a tilt mechanism for tilting the semi-transparent mirror. A display device characterized by the above-mentioned. 9. The display device according to claim 1, wherein a transparent film interposed between the light emitting element and the semi-transparent mirror and having a plurality of colors is provided. And a drive mechanism for moving the transparent film. 10. A light emitting display which emits light to perform display, a control means for controlling the display of the light emitting display, and a transparent film which transmits light from the light emitting display and has a plurality of colors. And a drive mechanism controlled by the control means to move the transparent film. 11. The display device according to claim 9, wherein the driving mechanism is provided substantially in parallel, and the first and second driving mechanisms wind the transparent film in opposite directions. A winding shaft; a tension applying mechanism for applying a rotational force in the winding direction to the first winding shaft; and a rotation driving mechanism for rotating and driving the second winding shaft. Display device. 12. The display device according to claim 11, wherein the tension applying mechanism includes a mainspring for urging the first winding shaft in a winding direction, and the rotation driving mechanism includes the control unit. And a motor interlocked with the second winding shaft. 13. A light emitting display which emits light to perform display, control means for controlling display of the light emitting display, and a light emitting element which emits light under the control of the control means. A display method, wherein light is transmitted through a semi-transparent mirror and display is performed by reflecting light from the light emitting element to the semi-transparent mirror. 14. A light emitting display which emits light to perform display, a control means for controlling the display of the light emitting display, and a transparent member which transmits light from the light emitting display and has a plurality of colors. A display method comprising: moving the transparent film under control of the control means; 15. A video device having a display device for displaying an operation state of a loaded video tape, wherein the display device emits light and performs display, and controls display of the fluorescent display tube. A plurality of light emitting diodes which emit light of different colors according to the operation state under the control of the control means; and a plurality of light emitting diodes which are arranged obliquely with respect to a transmission direction of light from the fluorescent display tube. A half having a transmitting surface through which light from the display tube is transmitted, and a reflecting surface formed on the back surface of the transmitting surface and reflecting light from the light emitting diode in substantially the same direction as light transmitting from the light emitting diode. A video device, comprising: a transparent mirror. 16. A video device having a display device for displaying an operation state of a loaded video tape, wherein the display device emits light and performs display, and controls display of the fluorescent display tube. Control means for transmitting light from the fluorescent display tube, a transparent film having a plurality of colors, and a first and a second film provided substantially parallel to wind the transparent film in opposite directions. A winding shaft, a mainspring for urging the first winding shaft in a winding direction, and a motor controlled by the control means and interlocked with the second winding shaft. Video equipment.