CN201259773Y - LCD with digital photo holding frame function - Google Patents
LCD with digital photo holding frame function Download PDFInfo
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- CN201259773Y CN201259773Y CNU2008201380417U CN200820138041U CN201259773Y CN 201259773 Y CN201259773 Y CN 201259773Y CN U2008201380417 U CNU2008201380417 U CN U2008201380417U CN 200820138041 U CN200820138041 U CN 200820138041U CN 201259773 Y CN201259773 Y CN 201259773Y
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- control module
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Abstract
A liquid crystal display device with the function of a digital picture frame comprises a display main control module, a digital picture frame main control module, a keystroke processing module, a keystroke board and an LCD screen. The output signal of the digital picture frame main control module is input to the display main control module through a high-definition YPbPr channel; the display driving chip of the display main control module receives the key signal of a video source switch SOURCE keystroke on the keystroke board, which is transmitted by the keystroke processing module, to realize switching among a VGA port, a DVI port and a high-definition YPbPr port; and finally, the display main control module inputs the video signals to the LCD screen to finish the display process. The digital picture frame main control module is added to the liquid crystal display device, which is good for expanding the functions of the liquid crystal display device; meanwhile, the liquid crystal display device solves the problem that common digital picture frames lack display function of a large-size LED screen.
Description
Technical field
The utility model relates to LCD, more particularly, relates to a kind of LCD with digital photo frame function.
Background technology
The LCD of prior art is mainly used in PC and shows, but under the situation that does not have to open at host computer, owing to there is not the signal input, LCD does not generally have use value.On the other hand, the display driver chip of LCD can be handled the input signal of three kinds of interfaces, is respectively: VGA, DVI and high definition YPbPr interface, but LCD all only can be used preceding two kinds of interfaces usually, last a kind of interface then seldom uses, and this has also caused very big waste.
Digital album (digital photo frame) not only has light, the function of putting arbitrarily and changing photo of traditional photo frame, and can edit by the logarithmic code photo, plays photo continuously, even can playing back music and video.Digital album (digital photo frame) can directly read the file in USB flash disk or other storage mediums, and is easy to operate.But the size of the screen of digital album (digital photo frame) is less than normal, mainly concentrates on 2.5,3.5 or 7 inches, if will watch then comparatively inconvenience of video, audio-visual broadcast in digital album (digital photo frame).
Summary of the invention
The technical problems to be solved in the utility model is, above-mentioned defective at prior art, a kind of LCD with digital photo frame function is provided, this display not only can be used as the display device of PC, and still can carry out picture demonstration and audio frequency and video playback automatically when not having the input of PC shows signal.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of LCD with digital photo frame function, comprise display main control module, digital album (digital photo frame) main control module, by key processing module, keypad, LCDs.The output signal of digital album (digital photo frame) main control module is input to the display main control module by high definition YPbPr passage, the display driver chip of display main control module receives the push button signalling of video source switching SOURCE button on the keypad that transmits by key processing module to be implemented in the switching between VGA, DVI and the high definition YPbPr interface, and last display main control module is input to LCDs with vision signal and finishes demonstration.
Described display main control module mainly comprises display driver chip and shows signal input channel, be used for the reception and the processing of shows signal, output on the LCDs then, simultaneously also blocked operation signal in receiver, video source carries out the selection of video source, and according to the startup of the State Control digital album (digital photo frame) master chip part of video source with close.
Described digital album (digital photo frame) main control module comprises the digital album (digital photo frame) master chip, the storage device interface, the audio frequency power amplifier module that are connected with the digital album (digital photo frame) master chip.Mainly realize the function of general digital album (digital photo frame), and shows signal is input to display driver chip by high definition YPbPr passage, audio signal transmission is arrived audio frequency power amplifier module; The audio frequency external tapping is connected with audio frequency power amplifier module, directly external audio signal is input to audio frequency power amplifier module and plays.Described digital album (digital photo frame) main control module also comprises an infrared interface, is connected with the digital album (digital photo frame) master chip, is used to receive the independently control signal of telepilot logarithmic code photo frame, partly operates with the logarithmic code photo frame.
Described keypad is provided with video source and switches SOURCE button and conventional func key, the signal of SOURCE button is transferred to by key processing module, realize display to the selection between VGA, DVI and three video source of YPbPr by the touch potential that video source is switched the SOURCE button, the conventional func key is realized the operation to LCD part and digital album (digital photo frame) part.
The described key processing module of pressing is connected with keypad, display main control module and digital album (digital photo frame) main control module respectively, press key processing module and receive the push button signalling that the keypad video source is switched the SOURCE button, this signal is transferred to display driver chip and receives its feedback information, the push button signalling that switches the SOURCE button according to video source by key processing module come conventional func key on the selection key plate be the operation LCD partly or function digit photo frame part.
Video source is switched according to " high definition---VGA---DVI---high definition " and is circulated in the whole process, and the SOURCE button then switches once whenever by next time.
Implement LCD of the present utility model, has following beneficial effect: by in LCD, adding the digital album (digital photo frame) main control module, be of value to the expansion of LCD function, solved the function that the not available large-scale LCD screen of common digital album (digital photo frame) shows simultaneously, in LCD during not as terminal display, can browsing pictures, listen to the music and watch video, so also make the user in the enjoy in Seeing and Hearing amusement, do not need to open host computer and waste more multipotency source.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the utility model workflow diagram.
Embodiment
As shown in Figure 1, the utility model comprise display main control module, digital album (digital photo frame) main control module, by key processing module, keypad, LCDs.
The display main control module comprises that display driver chip and shows signal input channel are two conventional input channels of VGA, DVI and high definition input channel YPbPr.Wherein two interfaces of VGA, DVI are mainly used in the input of PC shows signal, the YPbPr interface is used for the input of digital album (digital photo frame) module shows signal, display driver chip receives these shows signal and handles, and outputs on the LCDs by the LVDS interface at last.Simultaneously display driver chip receives the push button signalling that switches the SOURCE button by video source on the keypad of key processing module transmission and carries out the selection of video source, and according to the startup of the State Control digital album (digital photo frame) master chip part of video source with close.Shared same feed circuit in liquid crystal display drive circuit and photo frame processing section and be positioned at same PCB are controlled by display driver chip.
The digital album (digital photo frame) main control module comprises the digital album (digital photo frame) master chip, the storage device interface, the audio frequency power amplifier module that are connected with the digital album (digital photo frame) master chip.The digital album (digital photo frame) module reads the data of External memory equipment by USB interface or SD/CF card, via giving display driver chip with video display signal by high definition YPbPr channel transfer after the processing of digital album (digital photo frame) master chip, and give audio frequency power amplifier module with audio signal transmission, realize the function of digital album (digital photo frame); The audio frequency external tapping is connected with audio frequency power amplifier module, can directly external audio signal be input to audio frequency power amplifier module and play.Described digital album (digital photo frame) main control module also is provided with an infrared interface IR, be connected with the digital album (digital photo frame) main control chip, can receive the control signal of outside telepilot logarithmic code photo frame, thereby carry out the operation of logarithmic code photo frame part, the for example copy of file, deletion, picture or audio frequency and video file are play.
Keypad is provided with video source and switches SOURCE button and conventional func key, and the push button signalling that keypad switches the SOURCE button with video source is transferred to by key processing module.Realize LCD part or digital album (digital photo frame) operation partly by the conventional func key.The touch potential that switches the SOURCE button by video source realizes that display is to VGA, selection between three video source of DVI and YPbPr, concrete enforcement can be with reference to following scheme: because display partly has 3 input sources, therefore must represent with two, whenever by the SOURCE of video source switching next time button, the inner selector switch SOURCE_SW[1..0 of display driver chip] value oneself add once, on duty is to make zero in 3 (being binary code 11) time, so circulation, actual is with the work of a modulo-three counter form, the signal source selecting sequence is VGA (binary code 00), DVI (binary code 01), YPbPr (binary code 10), display driver chip carry out video source select in also with SOURCE_SW[1..0] signal feedback gives and presses key processing module, as SOURCE_SW[1..0] can automatically button operation be switched to the digital album (digital photo frame) part by key processing module when being binary code 10, other then are the operation to the LCD part.Can pass through CPLD (EPM240) realization and press key processing module, also be convenient to the down-stream renewal and realize complicated operations more.
Pressing key processing module is connected with keypad, display main control module and digital album (digital photo frame) main control module, press the push button signalling that the SOURCE button is switched in key processing module receiver, video source, this signal is transferred to display driver chip and receives its feedback information, the push button signalling that switches the SOURCE button according to video source by key processing module come conventional func key on the selection key plate be the operation LCD partly or function digit photo frame part.
Another embodiment of the present utility model is, keeping on all parts basis of invariable, remove and press key processing module, keypad directly is input to display driver chip with signal, finish operation to the LCD part, when video source switches to high definition YPbPr interface, partly operate by infrared interface logarithmic code photo frame by telepilot.
As shown in Figure 2, the whole flow process of system works of the present utility model is as follows:
1, after system powered on, the display drive control part was at first started working, and each functional module of reality part is carried out initialization.
2, judge whether power key is pressed, if system then can progressively cut off the power supply of major equipment except display driver chip, system enters low power consumpting state; If not, the system default video source is YPbPr, the operation of keypad control digital album (digital photo frame).
3, video source has switched to YPbPr, judges whether video source switching SOURCE button is pressed, if, video source switches to VGA, display driver chip is closed digital album (digital photo frame) and is partly powered, and makes this part enter low power consumpting state, keypad control operation of LCD; If not, video source keeps the YPbPr state constant, and signal is transferred to LCDs.
4, video source has switched to VGA, judges whether video source switching SOURCE button is pressed, if video source switches to DVI, and keypad control operation of LCD; If not, video source keeps the VGA state constant, and signal is transferred to LCDs.
5, video source has switched to DVI, judges whether video source switching SOURCE button is pressed, if video source is switched back high definition YPbPr, and the beginning cycling; If not, video source keeps the DVI state constant, and signal is transferred to LCDs.
Video source is switched according to " high definition---VGA---DVI---high definition " and is circulated in the whole process, and the SOURCE button then switches once whenever by next time.
Claims (6)
1, a kind of LCD with digital photo frame function, comprise the display main control module, the digital album (digital photo frame) main control module, press key processing module, keypad, LCDs, it is characterized in that, the output signal of digital album (digital photo frame) main control module is input to the display main control module by high definition YPbPr passage, the display driver chip of display main control module receives by video source on the keypad of key processing module transmission and switches the push button signalling of SOURCE button to be implemented in VGA, switching between DVI and the high definition YPbPr interface, last display main control module is input to LCDs with vision signal and finishes demonstration.
2, the LCD of band digital photo frame function according to claim 1, it is characterized in that, the display main control module mainly comprises display driver chip and shows signal input channel, be used for the reception and the processing of shows signal, output on the LCDs then, simultaneously also blocked operation signal in receiver, video source carries out the selection of video source, and according to the startup of the State Control digital album (digital photo frame) master chip part of video source with close.
3, the LCD of band digital photo frame function according to claim 1, it is characterized in that, the digital album (digital photo frame) main control module comprises the digital album (digital photo frame) master chip, the storage device interface, the audio frequency power amplifier module that are connected with the digital album (digital photo frame) master chip, the main function that realizes general digital album (digital photo frame), and shows signal is input to display driver chip by high definition YPbPr passage, with audio signal transmission to audio frequency power amplifier module; The audio frequency external tapping is connected with audio frequency power amplifier module, directly external audio signal is input to audio frequency power amplifier module and plays.
4, the LCD of band digital photo frame function according to claim 1, it is characterized in that, the digital album (digital photo frame) main control module also comprises an infrared interface, be connected with the digital album (digital photo frame) master chip, be used to receive the independently control signal of telepilot logarithmic code photo frame, partly operate with the logarithmic code photo frame.
5, according to the LCD of the described band digital photo frame function of claim 1, it is characterized in that, keypad is provided with video source and switches SOURCE button and conventional func key, the signal of SOURCE button is transferred to by key processing module, realize display to the selection between VGA, DVI and three video source of YPbPr by the touch potential that video source is switched the SOURCE button, the conventional func key is realized the operation to LCD part and digital album (digital photo frame) part.
6, according to the LCD of the described band band of claim 1 digital photo frame function, it is characterized in that, pressing key processing module is connected with keypad, display main control module and digital album (digital photo frame) main control module respectively, press key processing module and receive the push button signalling that the keypad video source is switched the SOURCE button, this signal is transferred to display driver chip and receives its feedback information, the push button signalling that switches the SOURCE button according to video source by key processing module come conventional func key on the selection key plate be the operation LCD partly or function digit photo frame part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201380417U CN201259773Y (en) | 2008-09-20 | 2008-09-20 | LCD with digital photo holding frame function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201380417U CN201259773Y (en) | 2008-09-20 | 2008-09-20 | LCD with digital photo holding frame function |
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| Publication Number | Publication Date |
|---|---|
| CN201259773Y true CN201259773Y (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201380417U Expired - Fee Related CN201259773Y (en) | 2008-09-20 | 2008-09-20 | LCD with digital photo holding frame function |
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| CN (1) | CN201259773Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618957A (en) * | 2013-11-25 | 2014-03-05 | 乐视致新电子科技（天津）有限公司 | Image playing method and electronic device |
-
2008
- 2008-09-20 CN CNU2008201380417U patent/CN201259773Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618957A (en) * | 2013-11-25 | 2014-03-05 | 乐视致新电子科技（天津）有限公司 | Image playing method and electronic device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160801 Address after: Ten, 518000 floor, new world industrial town, Bantian street, Shenzhen District, Longgang District, Guangdong, China Patentee after: Shenzhen Shenzhou Creative Technology Limited Address before: 518112 new world industrial city, Shenzhen, Longgang, Guangdong Patentee before: Shenzhen Hasee Computer Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20170920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |