TWI430219B - Multi-function display device - Google Patents

Description

Multifunctional display device

The present invention relates to a display device, and more particularly to a multi-function display device.

The flat panel display (FPD) has the advantages of slimness, power saving and low radiation, so it has been widely used as an external screen for a desktop computer or a multimedia host device. However, in the case where the conventional flat display device is not connected to the host device or the host device is turned off, the video signal cannot be independently played or used for other purposes, so the flexibility of use is rather lacking.

Accordingly, it is an object of the present invention to provide a multi-functional display device that overcomes the above-discussed shortcomings of the prior art.

Therefore, the multi-functional display device of the present invention comprises a display unit for displaying a picture, an audio signal output unit for outputting a sound signal, a data input interface for inputting a raw video signal, and an electrical connection. a memory unit of the data input interface, and a video decoding module electrically connected to the memory unit, the display unit and the audio signal output unit.

The memory unit is used to store the original video signal. The video decoding module is configured to decode the original video signal to generate an image output signal and an audio output signal, and feed the image output signal to the display unit to display the image, and feed the audio output signal To the audio signal output unit to output the sound signal.

According to the present invention, the multi-function display device can independently operate to play the original video and audio signal without being connected to the host device or the host device is turned off, so that the flexibility of use can be improved, and the energy-saving effect can be achieved, so The object of the invention is achieved.

The foregoing and other objects, features, and advantages of the invention are set forth in the <RTIgt;

Referring to FIG. 1 and FIG. 2, a preferred embodiment of the multi-function display device 10 of the present invention comprises a display unit 11 for displaying a picture, an audio signal output unit 12 for outputting a sound signal, and an input/ a data input/output interface 13 for outputting a raw video signal, a memory unit 14 electrically connected to the data input/output interface 13, a video decoding module 15, a compression/decompression unit 16, a processor 18, and a The display mode control unit 17 is electrically connected to the processor 18, a video format converter 19, a hot key control unit 21 electrically connected to the processor 18, and a power supply module 22.

The data input/output interface 13 is preferably a universal serial bus (USB) interface, but can also be an IEEE 1394 interface, a secure digital (SD) memory card interface, and a memory stick. (Memory Stick; MS) interface, a multimedia memory card (MMC) interface, a compact flash (CF) memory card interface or other suitable data transmission interface. The memory unit 14 includes a non-volatile memory and/or a volatile memory. The memory unit 14 preferably includes a flash memory. The audio signal output unit 12 can be a conventional mono speaker or a multi-channel speaker.

The memory unit 14 is configured to store the original video signal. The video decoding module 15 is electrically connected to the memory unit 14, the display unit 11, the audio signal output unit 12, the processor 18, and the video format converter 19. The video decoding module 15 is configured to decode the original video signal to generate an image output signal and an audio output signal, and feed the image output signal to the display unit 11 to display the image, and output the audio signal. The audio signal output unit 12 is fed to output the sound signal.

The compression/decompression unit 16 is configured to compress the original video signal into a video compression signal to save the storage space of the memory unit 14, and decompress the video compression signal into the original video signal to perform a playback operation.

The display mode control unit 17 includes at least one button. The button is used to input a display mode control signal to the processor 18. The hotkey control unit 21 includes at least one hotkey for inputting a hotkey signal to the processor 18.

The processor 18 is electrically connected to the memory unit 14, the video decoding module 15, the compression/decompression unit 16, the display mode control unit 17, the video format converter 19, and the hot key control unit 21. The processor 18 can provide a shortcut control according to the hotkey signal, thereby driving the memory unit 14, the video decoding module 15, and the compression/decompression unit 16 to perform corresponding audio and video operations with the video format converter 19. . The processor 18 can further control the display mode of the display unit 11 according to the display mode control signal.

The processor 18 includes an On-Screen Display (OSD) control unit 181. The on-screen display control unit 181 is configured to perform an on-screen display operation according to the display mode control signal, thereby controlling the display mode of the display unit 11.

The video format converter 19 is electrically connected to the video decoding module 15, the processor 18 and the display unit 11. The video format converter 19 is a video format conversion process corresponding to the display unit 11 for executing the image output signal and/or the on-screen display signal of the on-screen display operation.

In the operation of the multi-function display device 10, the data input/output interface 13 can be further used to input a phone number data signal, the memory unit 14 can be further used to store the phone number data signal, and the processor 18 can further The telephone number information signal is used to feed the video format converter 19, so that the display unit 11 displays at least one telephone number corresponding to the telephone number information signal. Alternatively, the data input/output interface 13 can be further used to input other data signals and stored in the memory unit 14 so as to facilitate the user to view the display screen corresponding to the data signals through the display unit 11 at any time. On the other hand, the user can also output the original data signal, the telephone number data signal and the data signals stored in the memory unit 14 to the external device through the data input/output interface 13.

The compression/decompression unit 16 can be further configured to convert the original data signal into a compressed signal to save storage space of the memory unit 14, and decompress the compressed signal into the original data signal for subsequent display operation. In an embodiment, the compression/decompression unit 16 may transmit the decompressed raw data signal directly to the processor 18.

The video format converter 19 includes a PIP/POP (Picture In Picture/Picture Out Picture) processing unit for executing the image output signal, the on-screen display signal of the on-screen display operation, the phone number data signal, and the like. At least two of the data signals are processed by the picture.

The data input/output interface 13 can be further used to input a preset music signal, the memory unit 14 can be further used to store the preset music signal, and the processor 18 can be further used when the multifunctional display device 10 is powered on. The video decoding module 15 is controlled to decode the preset music signal to generate a music output signal, and the music output signal is broadcasted from the audio signal output unit 12. Similarly, the user can also output the preset music signal stored in the memory unit 14 to the external device through the data input/output interface 13. Similarly, the compression/decompression unit 16 can be further used to compress/decompress the preset music signal to save storage space of the memory unit 14.

The video decoding module 15 includes a demultiplexing unit 151 electrically connected to the memory unit 14, an audio decoding unit 152 electrically connected to the demultiplexing unit 151 and the audio signal output unit 12, and an electrical connection. The subtitle decoding unit 153 of the demultiplexing unit 151, the video decoding unit 154 electrically connected to the demultiplexing unit 151, and the video mixing unit 155 electrically connected to the subtitle decoding unit 153 and the video decoding unit 154.

The demultiplexing unit 151 is configured to demultiplex the original video signal into an original audio signal, an original subtitle signal and an original image signal. The audio decoding unit 152 decodes the original audio signal into the audio output signal and feeds the audio signal output unit 12 to output the sound signal.

The subtitle decoding unit 153 decodes the original subtitle signal into a subtitle signal. The video decoding unit 154 decodes the original video signal into an image signal. The video mixing unit 155 performs a video mixing process of the video signal and the caption signal to generate the image output signal.

The power supply module 22 includes a battery unit 221 , a power conversion unit 222 , and a power supply switching unit 223 . The battery unit 221 is configured to provide a first DC power source, and the power conversion unit 222 is configured to convert an AC power source into a second DC power source, and the power switching unit 223 is configured to select the first DC power source. Or the second DC power source to supply the multi-function display device 10. For example, when the AC mains power is supplied, the power switching unit 223 can select the second DC power to supply the multi-function display device 10. When the AC mains is powered off, the power switching unit 223 selects the first A DC power source is used to power the multi-function display device 10.

Although the display unit 11, the audio signal output unit 12, the data input/output interface 13, the display mode control unit 17, and the hot key control unit 21 are all disposed in a front frame 101, the audio signal is shown in FIG. The output unit 12, the data input/output interface 13, the display mode control unit 17 and the hot key control unit 21 can be respectively disposed on a rear frame 102 or a side wall 103.

In summary, in the operation of the multifunctional display device 10 of the present invention, the memory unit 14 can be used to store the original video signal, the phone number data signal, or other data signals that are convenient for the user to view at any time, and are turned off at the host device. Alternatively, in the case of not connecting the host device, the multi-functional display device 10 can operate independently to play the original video signal, display the telephone number required by the user, or display a picture corresponding to the data signal, so that the use can be improved. Elasticity can also achieve energy saving effects. Even in the case of the operation of the host device, the PIP/POP processing unit 191 can play the original video signal, display the telephone number required by the user, or display a picture corresponding to the data signal, so that it can be achieved. The object of the invention.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

10. . . Multifunctional display device

101. . . Front frame

102. . . Back frame

103. . . Side wall

11. . . Display unit

12. . . Audio signal output unit

13. . . Data input/output interface

14. . . Memory unit

15. . . Video decoding module

151. . . Demultiplexing unit

152. . . Audio decoding unit

153. . . Subtitle decoding unit

154. . . Video decoding unit

155. . . Video mixing unit

16. . . Compression/decompression unit

17. . . Display mode control unit

18. . . processor

181. . . On-screen display control unit

19. . . Video format converter

191. . . PIP/POP processing unit

twenty one. . . Hotkey control unit

twenty two. . . Power supply module

221. . . Battery unit

222. . . Power conversion unit

223. . . Power switching unit

1 is a functional block diagram showing a preferred embodiment of the multifunctional display device of the present invention; and

2 is a perspective view showing a preferred appearance of the above multi-functional display device.

10. . . Multifunctional display device

11. . . Display unit

12. . . Audio signal output unit

13. . . Data input/output interface

14. . . Memory unit

15. . . Video decoding module

151. . . Demultiplexing unit

152. . . Audio decoding unit

153. . . Subtitle decoding unit

154. . . Video decoding unit

155. . . Video mixing unit

16. . . Compression/decompression unit

17. . . Display mode control unit

18. . . processor

181. . . On-screen display control unit

19. . . Video format converter

191. . . PIP/POP processing unit

twenty one. . . Hotkey control unit

twenty two. . . Power supply module

221. . . Battery unit

222. . . Power conversion unit

223. . . Power switching unit

Claims (14)

A multifunctional display device comprises: a display unit for displaying a picture; an audio signal output unit for outputting a sound signal; and a data input/output interface for inputting/outputting a raw video signal or a telephone a data signal, a memory unit electrically connected to the data input/output interface, the memory unit is configured to store the original video signal or the telephone number data signal; a video decoding module electrically connected to the memory unit, the a display unit and the audio signal output unit, the video decoding module is configured to decode the original video signal to generate an image output signal and an audio output signal, wherein the image output signal is fed to the display unit to display the image The audio output signal is fed to the audio signal output unit to output the sound signal; and a video format converter is electrically connected to the memory unit and the display unit to enable the display after feeding the telephone number data signal The unit displays at least one telephone number corresponding to the telephone number information signal. The multi-functional display device according to claim 1, further comprising: a compression/decompression unit electrically connected to the memory unit, the compression/solution The compression unit is configured to compress the original video signal into a video compression signal, and decompress the video compression signal into the original video signal. The multi-functional display device of claim 2, further comprising: a display mode control unit, comprising at least one button for inputting a display mode control signal for controlling the display mode of the display unit And a processor electrically connected to the memory unit, the video decoding module, the compression/decompression unit, the display mode control unit, and the video format converter, the processor is configured to control the memory unit, And a video decoding module and the compression/decompression unit to perform a playback operation of the original video signal, the processor is further configured to control a display mode of the display unit according to the display mode control signal, the processor is further configured to The phone number data signal is fed to the video format converter. The multi-functional display device of claim 3, wherein the processor comprises: an on-screen display control unit configured to perform an on-screen display operation according to the display mode control signal, thereby controlling the display unit Display mode. The multi-function display device of claim 4, wherein the video format converter is further electrically connected to the video decoding module, and the video format converter is further configured to execute the image output signal and/or the screen. The video format conversion processing corresponding to the display unit of the display signal on the operation screen is displayed. The multi-function display device according to claim 5, wherein the video format converter comprises: a PIP/POP processing unit, configured to execute the image output signal, the on-screen display signal of the on-screen display operation, and The child number picture of at least any of the telephone number data signals is processed. The multi-function display device according to claim 3, further comprising: a hot key control unit electrically connected to the processor, comprising at least one hot key, wherein the hot key is used to input a hot key signal, so that The processor can provide a shortcut control according to the hotkey signal, thereby driving the memory unit, and the video decoding module and the compression/decompression unit perform corresponding audio and video operations. The multi-function display device of claim 3, wherein the data input/output interface is further configured to input a preset music signal, the memory unit is further configured to store the preset music signal, and the processor further When the multi-function display device is powered on, controlling the video decoding module to decode the preset music signal to generate a music output signal. And output the music output signal from the audio signal output unit. The multi-functional display device of claim 1, wherein the video decoding module comprises: a demultiplexing unit electrically connected to the memory unit, the demultiplexing unit is configured to use the original video signal Demultiplexing is an original audio signal, an original subtitle signal and an original image signal; an audio decoding unit is electrically connected to the demultiplexing unit and the audio signal output unit, and the audio decoding unit decodes the original audio signal into The audio output signal is fed to the audio signal output unit to output the sound signal; a caption decoding unit is electrically connected to the demultiplexing unit, and the caption decoding unit decodes the original caption signal into a caption signal; a video decoding The unit is electrically connected to the demultiplexing unit, and the video decoding unit decodes the original image signal into an image signal; and a video mixing unit electrically connected to the subtitle decoding unit and the video decoding unit, where the video mixing unit performs The image signal is mixed with the video of the caption signal to generate the image output signal. The multi-function display device of claim 1, further comprising: a power supply module, comprising a battery unit, a power conversion unit, and a power switching unit, wherein the battery unit is configured to provide a first direct current The power conversion unit is configured to convert an AC mains power into a second DC power supply, and the power switching unit is configured to select the first DC power source or the second DC power source to supply the multi-function display device. The multi-function display device according to claim 10, wherein, when the AC mains power is supplied, the power switching unit selects the second DC power source to supply the multi-function display device, and when the AC mains power is cut off The power switching unit selects the first DC power source to supply the multi-function display device. The multi-function display device of claim 1, wherein the data input/output interface is a universal serial bus interface. The multi-functional display device of claim 1, wherein the memory unit comprises a non-volatile memory and/or a volatile memory. The multi-functional display device of claim 1, wherein the memory unit comprises a flash memory.