JPS635317Y2 - - Google Patents

Description

[Detailed explanation of the idea] Technical field This invention relates to an improvement of a remote control device.

BACKGROUND ART This type of remote control device allows you to tune a TV wirelessly using radio waves or infrared rays, and is preferred because it allows you to tune in from a distance without touching the TV each time. It is beginning to be used in

For example, FIG. 1 shows an example of such a conventionally commonly used television remote control device. By pressing a desired operation button 6 provided on the top of the screen 5, channel switching and volume adjustment can be performed.

By the way, the channel selection display 7 is not displayed on the operation surface 5 of the conventional TV remote control device 1 commonly used, and the channel selection display 7 is usually provided on the TV body 3. be. Therefore, when switching television channels by remote control operation, it is necessary to check each operation surface of the remote control device 1 while looking at the channel selection display 7 on the television main body 3, resulting in poor operability. For this reason, it is conceivable to attach a display device such as an EL device or a fluorescent display tube to the remote control device 1 to display the channel selection, but although these can provide the display brightness required for remote control operation, Since the display brightness is insufficient and difficult to see when attached to a TV, it was necessary to provide a channel display on both the television main body 3 and the remote control device 1.

DISCLOSURE OF THE INVENTION Therefore, the present invention has been proposed in view of the above-mentioned problems, and it is possible to obtain a predetermined display brightness even when the channel selection display device attached to the remote control device is attached to the TV body. The purpose is to provide a remote control device.

That is, the television device according to the present invention is configured such that the remote control device can be attached and detached from the front of the television body, and a light source is arranged at the mounting position of the remote control device on the television body, and the operation surface of the remote control device is arranged on the television body. A light transmissive display element is disposed on the side at a position corresponding to the light source, and the light source is used as a backlight for the light transmissive display element.

A remote control device with such a configuration allows remote control operation while viewing the channel selection display on the display element attached to the device, and when attached to the TV body, the light transmission type display element is placed in front of the light source, making it possible to It is possible to obtain display brightness. Therefore, there is no need to separately install a channel selection display device on the television main body, and the display element of the remote control device can be used not only for channel display but also for other displays such as a clock and a calculator.

BEST MODE FOR CARRYING OUT THE INVENTION FIG. 2 is an example of a remote control device with a television channel selection display function according to the present invention, and shows a front view of a remote control device 8 that is also equipped with a computer function. In other words, in the figure, 9 is the channel selection button provided on the operation surface, and #1 to #12 correspond to the TV channel.
A channel selection display is attached. This channel selection button 9 is also used as a numeric keypad when used as a calculator, which will be described later. Further, 10 is an operation key in the case of a calculator such as four arithmetic operations. 11 is a mode changeover switch for switching between remote control operation and calculation operation; 12 is an infrared emission port; 13 is a light-transmissive display element, such as a liquid crystal display element, which displays TV channel selection and calculation results when used as a calculator. It is something that does. Although not shown, the liquid crystal display element 13 uses a known liquid crystal cell in which a liquid crystal substance is sealed between a pair of transparent electrodes arranged with a small gap maintained, and the liquid crystal substance in the voltage applied part changes the refractive index of light. This is what was used. Therefore, when used as a remote control device, light from the front side of the operation surface passes through this liquid crystal display element 13 and is reflected by the reflection plate 14 arranged on the back side, and this reflected light is reflected back to the front side, which is called light. It constitutes a transmissive-reflective display device. As shown in cross-section in FIG. 3, the reflecting plate 14 is constituted by a case body that can be moved (slided) as appropriate on the back side of the liquid crystal display element 13 portion. When not operating the remote control, the reflector 14 is slid from the back of the liquid crystal display element 13 and attached to the television main body 16 having an illumination light source 15 such as a lamp, as shown in FIGS. 4 and 5. At this time, the liquid crystal display element 13 transmits the light from the lamp 15 disposed on the back side, and clearly displays the selected television channel. 6th
The figure shows a block circuit diagram of a remote control device 8 that has both the functions of displaying TV channel selection and displaying computer calculations. In the circuit, the TV channel selection control signal from the control unit 19 drives the infrared light emitting unit 20 and also drives the display drive circuit 21 to display the channel display on the liquid crystal display element 13 at the same time as the TV channel switching operation. It was meant to be done. In addition, when using it as a calculator, switch the mode changeover switch 11 to the computer side, connect the calculation section 22 to the power supply 23, calculate the key input from the operation section 18, and send the calculation result via the drive circuit 23. is displayed on the liquid crystal display element 13. In this case, the channel selection button 9 of the operation section 18
is used as a numeric keypad. The remote control device circuit for TV channel selection and the calculation circuit of the computer can be appropriately designed using known circuits, and in this case, the liquid crystal display element 13, the input device of the operation section 18, the power supplies 17, 23, etc. may be shared as appropriate. It is something that can be used.

As described above, according to the present invention, remote control operation becomes easy, and when the TV is attached to the TV main body, a backlight such as a lamp provided on the TV main body can be used, and a channel display with bright display brightness can be performed. Furthermore, by providing the remote control device with a computer circuit and a clock circuit, a multifunctional remote control device can be provided.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of a conventional remote control device, FIG. 2 is a front view of a remote control device according to the present invention, and FIG.
The figure is a cross-sectional view taken from the - line in Figure 2, Figures 4 and 5 are perspective views and cross-sectional views showing the remote control device in Figure 2 attached to the TV body, and Figure 6 is the same view as in Figure 2. FIG. 8...Remote control device, 13...Light transmission type display element (liquid crystal display element), 14...Reflection plate.

Claims (1)

[Scope of utility model registration request] In a television set in which a remote control device is detachably attached to the front surface of the television body, a light source is arranged at a position where the remote control device is attached to the television body, and a light source is placed on the operation surface side of the remote control device at a position corresponding to the light source. 1. A television set comprising a light transmissive display element, the light source being used as a backlight for the light transmissive display element.