CN102339593A - Handheld mobile display device for video signals - Google Patents
Handheld mobile display device for video signals Download PDFInfo
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- CN102339593A CN102339593A CN2010102291732A CN201010229173A CN102339593A CN 102339593 A CN102339593 A CN 102339593A CN 2010102291732 A CN2010102291732 A CN 2010102291732A CN 201010229173 A CN201010229173 A CN 201010229173A CN 102339593 A CN102339593 A CN 102339593A
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Abstract
The invention relates to a handheld mobile display device for video signals. The handheld mobile display device comprises a video signal source, a signal-masking module and a display panel. The video signal source is used for generating data-enabling signals and clock pulse signals. The signal-masking module is electrically connected with the video signal source and is used for receiving the data-enabling signals and the clock pulse signals and for masking part of the clock pulse signals according to the data-enabling signals and masking signals so as to provide processing signals. The display panel is electrically connected with the signal-masking module and is used for receiving the processing signals and for displaying part of the video signals into an image according to the processing signals.
Description
Technical field
The invention relates to a kind of hand-hold mobile display device, and particularly relevant for a kind of hand-hold mobile display device of scalable video signal resolution.
Background technology
In recent years, along with popularizing of hand-hold mobile display device, become the modern indispensable electronic product, wherein, mobile phone market is the most fast-developing market.Because the market of mobile phone is developed in a large number, (for example microcontroller (micro controller unit, MCU) panel of interface) is made in a large number, watches to the user so that video data (video data) is shown as image therefore to be suitable for panel that mobile phone uses.
Because the form of video data is different with the form of microcontroller interface; And video data is also different with the panel resolution rate of microcontroller interface; Therefore; Can configuration image processor and picture frame impact damper (frame buffer) in mobile phone, and the picture frame impact damper can have the resolution of the panel resolution rate size that is equivalent to microcontroller interface, makes the resolution of video data can meet panel resolution rate.Wherein, image processor is in order to the processing video data, and the video data that will handle stores the picture frame impact damper.Then, the data that will be stored in the picture frame impact damper via image processor converts the data of the required form of microcontroller interface into by pen, and is sent to the panel of microcontroller interface, shows with the vision signal that will meet panel resolution.Yet,, will increase the use cost of circuit component owing to use the hand-hold mobile display device domestic demand configuration picture frame impact damper of handset displays panel.
Summary of the invention
The present invention provides a kind of hand-hold mobile display device of vision signal; With with the conversion of resolution of vision signal for meeting general handset displays panel resolution rate; And need not use extra picture frame impact damper, can reduce the use cost of circuit and reach the effect of simplifying circuit.
The present invention proposes a kind of hand-hold mobile display device of vision signal, comprises that video signal source, signal cover module and display panel.Video signal source is in order to produce data enable signal and clock signal.Signal covers module and electrically connects video signal source, in order to receiving data enable signal and clock signal, and covers the clock signal of part according to data enable signal and mask signal, so that processing signals to be provided.Display panel electrically connects signal and covers module, in order to receiving processing signals, and according to processing signals the part of vision signal is shown as an image.
In one embodiment of this invention, the hand-hold mobile display device of above-mentioned vision signal also comprises reset signal generation module and selected cell.The reset signal generation module produces reset signal, with the initialization display panel.Selected cell couples signal and covers module and reset signal generation module, according to control signal, to select the output reset signal or to handle and number give display panel.In addition, above-mentioned selected cell can be a multiplexer.
In one embodiment of this invention, the hand-hold mobile display device of above-mentioned vision signal also comprises control module.Control module couples selected cell, receives vertical synchronizing signal, to produce control signal and mask signal.
In one embodiment of this invention, above-mentioned signal cover module comprise with the door and Sheffer stroke gate.Receive the data enable signal with the first input end of door, with second input end reception mask signal of door, with the output terminal generation adjustment signal of door.The first input end of Sheffer stroke gate receives the adjustment signal, and second input end of Sheffer stroke gate receives clock signal, and its output terminal produces processing signals.
In one embodiment of this invention, the resolution of above-mentioned image is less than the resolution of vision signal.
The present invention is covered module is covered vision signal partly according to the data enable signal of mask signal and vision signal clock signal by signal; Display panel just can be according to the clock signal after covering afterwards; Vision signal is shown as image; And do not need to carry out the conversion of vision signal, and then the resolution of adjustment vision signal through the picture frame impact damper.Thus, the present invention need not dispose extra picture frame impact damper, therefore can reduce the use cost of circuit effectively, also can simplify the framework of hand-hold mobile display device.
Description of drawings
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows, wherein:
Fig. 1 is the synoptic diagram according to the hand-hold mobile display device of the vision signal of one embodiment of the invention.
Fig. 2 is the sequential chart according to Data Processing signal, clock signal, mask signal and the processing signals of one embodiment of the invention.
Fig. 3 is the synoptic diagram according to the hand-hold mobile display device of the vision signal of another embodiment of the present invention.
Embodiment
Fig. 1 is the synoptic diagram according to the hand-hold mobile display device of the vision signal of one embodiment of the invention.Please with reference to Fig. 1, the hand-hold mobile display device 100 of vision signal comprises that video signal source 101, signal cover module 110 and display panel 102, and wherein, display panel 102 can be microcontroller (micro controller unit, MCU) panel of interface.Signal covers module 110 and can electrically connect video signal source 101 and receive data enable signal DE and the clock signal CLK that is produced by video signal source 101; And cover clock signal CLK partly according to data enable signal DE and mask signal SD, give display panel 102 to produce processing signals WR (that is the clock signal CLK after covering).
Then, display panel 102 can be according to processing signals WR, and the part of its vision signal that receives from video signal source 101 is shown as image.Because the processing signals WR of 102 foundations of display panel is the clock signal CLK after covering; Therefore the resolution of the resolution of the image that shown of display panel 102 vision signal that can be produced less than video signal source 101 is so that be adjusted to vision signal identical with the resolution of display panel 102.
Further, signal cover module 110 comprise with the door 120 with Sheffer stroke gate 130.Receive data enable signal DE with the first input end of door 120, with second input end reception mask signal SD of door 120, with the output terminal generation adjustment signal AS of door 120.The first input end of Sheffer stroke gate 130 receives adjustment signal AS, and second input end of Sheffer stroke gate 130 receives clock signal CLK, and the output terminal of Sheffer stroke gate 130 produces processing signals WR.
Below, the signal timing diagram clear signal of collocation Fig. 2 is covered the start of module 110.Fig. 2 is the sequential chart according to data enable signal DE, mask signal SD, clock signal CLK and the processing signals of one embodiment of the invention.Please merge with reference to Fig. 1 and Fig. 2, when data enable signal DE and mask signal SD are the accurate position of logic high voltage " 1 ", with the adjustment signal AS of door 120 outputs be the accurate position of logic high voltage " 1 "; When data enable signal DE and mask signal SD are accurate position of logic low-voltage " 0 " or data enable signal DE when being the accurate position of logic low-voltage " 0 " with mask signal SD one of which, with the adjustment signal AS of door 120 outputs be logic low-voltage accurate " 0 ".
When clock pulse signal CLK was the accurate position of logic low-voltage " 0 " with adjustment signal AS, the processing signals WR of Sheffer stroke gate 130 outputs was the accurate position of logic high voltage " 1 "; When clock pulse signal CLK and adjustment signal AS be that accurate position of logic high voltage " 1 " or clock signal CLK are the accurate position of logic high voltage " 1 " with adjustment signal AS one of which, the processing signals of Sheffer stroke gate 130 outputs is logic high voltage accurate " 0 ".
Can find out by Fig. 2, by covering clock signal CLK partly effectively, to produce processing signals WR with the door 120 and the running of Sheffer stroke gate 130.Because clock signal CLK crested (being processing signals WR) partly; When display panel 102 is shown as image according to processing signals WR with the part of vision signal; The pixel that has partly can not be shown, so the resolution of the image that shown of display panel 102 can descend.Thus; Can cover clock signal CLK partly through the hand-hold mobile display device 100 of vision signal; Make the resolution of the image that display panel 102 shows to descend, meeting the resolution of display panel 102, and do not need to carry out through known picture frame impact damper.Therefore, present embodiment can reduce the use cost of circuit effectively, also can simplify the structure of circuit.
Fig. 3 is the synoptic diagram according to the hand-hold mobile display device of the vision signal of another embodiment of the present invention.Please with reference to Fig. 3, the hand-hold mobile display device 300 of vision signal comprises that video signal source 301, display panel 302 signals cover module 310, reset signal generation module 320, selected cell 330 and control module 340.
In the present embodiment, video signal source 301, display panel 302 can cover the embodiment of module 110 with signal with reference to information signal source 101, the display panel 102 of Fig. 1 with the embodiment that signal covers module 310, repeat no more at this.In addition, signal covers module 310 and also comprises and door 311 and Sheffer stroke gate 312, and with the relation of coupling of door 311 and Sheffer stroke gate 312 and embodiment can with reference to Fig. 1 with couple relation and the embodiment of door 120 with Sheffer stroke gate 130, so repeat no more at this.
Reset signal generation module 310 produces reset signal SR, with initialization display panel 302.For instance; When display panel 302 receives reset signal SR; Drawing RAS (graphic random access memory in the display panel 302; GRAM) memory pointer (ram pointer) can be got back to the position of beginning (start), so that carry out writing of video data, and then show image.
Selected cell 330 couples signal and covers module 310 and reset signal generation module 320, according to control signal CTRL, gives display panel 302 to select output reset signal SR or processing signals WR.In addition, the selected cell 330 of present embodiment can be a multiplexer.For instance, when control signal CTRL was the accurate position of logic low-voltage " 0 ", selected cell 330 can be given display panel 302 by output reset signal SR, with initialization display panel 302; When control signal CTRL was the accurate position of logic high voltage " 1 ", selected cell 330 can be given display panel 302 by output processing signals WR, is adjusted to the resolution that meets display panel 302 with the resolution with vision signal.
Next, with the function mode of hand-hold mobile display device 300 of explanation vision signal.At first; When the hand-hold mobile display device 300 of vision signal starts; Owing to do not receive the vertical synchronizing signal VSS that video signal source 301 produces as yet; Therefore the control signal CTRL of the control module 340 generation accurate positions of logic low-voltage " 0 " gives selected cell 330, makes the reset signal of selected cell 330 output reset signal generation modules 320 generations give display panel 302, to carry out the initialization of display panel 302.
Afterwards; When control module 340 receives the vertical synchronizing signal VSS of video signal source 301 generations; The control signal CTRL that control module 340 can produce the accurate position of logic high voltage " 1 " gives selected cell 330, and the processing signals WR that makes selected cell 330 output signal shielding modules 310 produced gives display panel 302.
At this moment, can data enable signal DE and mask signal SD be carried out in the signal shielding module 310 with door 311 " with " computing, adjust signal AS to produce.Then, the Sheffer stroke gate 312 in the signal shielding module 310 can will adjust signal AS and clock signal CLK carries out the computing of NAND, gives display panel 302 to produce processing signals WR.
Then, display panel 302 can be according to processing signals WR (that is the clock signal CLK after covering), and the part of at that time vision signal is shown, and continues such action and finishes until the data activation.
In sum; The present invention is covered module is covered vision signal partly according to the data enable signal of mask signal and vision signal clock signal by signal; Display panel just can be according to the clock signal after covering afterwards; Vision signal is shown as image, and does not need to carry out the conversion of vision signal through the picture frame impact damper, and then the resolution of adjustment vision signal.Thus, the present invention need not dispose extra picture frame impact damper, therefore can reduce the use cost of circuit effectively, also can simplify the framework of hand-hold mobile display device.
Though the present invention discloses as above with embodiment; Right its is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under any; Do not breaking away from the spirit and scope of the present invention, when can doing a little change and retouching, so protection scope of the present invention is when looking being as the criterion that the claim scope defined.
Claims (6)
1. the hand-hold mobile display device of a vision signal comprises:
One video signal source is in order to produce a data enable signal and a clock pulse signal;
One signal covers module, electrically connects this video signal source in order to receiving this data enable signal and this clock signal, and covers this clock signal partly according to this a data enable signal and a mask signal, so that a processing signals to be provided; And
One display panel electrically connects this signal and covers module, in order to receiving this processing signals, and according to this processing signals the part of this vision signal is shown as an image.
2. the hand-hold mobile display device of vision signal as claimed in claim 1 also comprises:
One reset signal generation module produces a reset signal, with this display panel of initialization; And
One selected cell couples this signal and covers module and this reset signal generation module, according to a control signal, number gives this display panel to select this reset signal of output maybe should handle.
3. the hand-hold mobile display device of vision signal as claimed in claim 2, wherein this selected cell is a multiplexer.
4. the hand-hold mobile display device of vision signal as claimed in claim 2 also comprises:
One control module couples this selected cell, receives a vertical synchronizing signal, to produce this control signal and this mask signal.
5. the hand-hold mobile display device of vision signal as claimed in claim 1, wherein this signal covers module and comprises:
One with door, its first input end receives this data enable signal, its second input end receives this mask signal, its output terminal produces an adjustment signal; And
One Sheffer stroke gate, its first input end receive should adjust signal, and its second input end receives this clock signal, and its output terminal produces processing signals.
6. the hand-hold mobile display device of vision signal as claimed in claim 1, wherein the resolution of this image is less than the resolution of this vision signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102291732A CN102339593B (en) | 2010-07-14 | 2010-07-14 | Handheld mobile display device for video signals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102291732A CN102339593B (en) | 2010-07-14 | 2010-07-14 | Handheld mobile display device for video signals |
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| Publication Number | Publication Date |
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| CN102339593A true CN102339593A (en) | 2012-02-01 |
| CN102339593B CN102339593B (en) | 2013-11-13 |
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| CN2010102291732A Expired - Fee Related CN102339593B (en) | 2010-07-14 | 2010-07-14 | Handheld mobile display device for video signals |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070077379A (en) * | 2006-01-23 | 2007-07-26 | 삼성전자주식회사 | Driving apparatus and liquid crystal display comprising the same |
| JP2007304479A (en) * | 2006-05-15 | 2007-11-22 | Ｎｅｃディスプレイソリューションズ株式会社 | Video display device, and display method by the same |
| CN101241687A (en) * | 2000-05-09 | 2008-08-13 | 夏普公司 | Image display device |
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2010
- 2010-07-14 CN CN2010102291732A patent/CN102339593B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241687A (en) * | 2000-05-09 | 2008-08-13 | 夏普公司 | Image display device |
| KR20070077379A (en) * | 2006-01-23 | 2007-07-26 | 삼성전자주식회사 | Driving apparatus and liquid crystal display comprising the same |
| JP2007304479A (en) * | 2006-05-15 | 2007-11-22 | Ｎｅｃディスプレイソリューションズ株式会社 | Video display device, and display method by the same |
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Granted publication date: 20131113 Termination date: 20180714 |