CN102820020B - Display capable of achieving double-desktop operation function - Google Patents
Display capable of achieving double-desktop operation function Download PDFInfo
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- CN102820020B CN102820020B CN201110151284.0A CN201110151284A CN102820020B CN 102820020 B CN102820020 B CN 102820020B CN 201110151284 A CN201110151284 A CN 201110151284A CN 102820020 B CN102820020 B CN 102820020B
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Abstract
The invention discloses a display capable of achieving a double-desktop operation function. The display comprises a digital signal interface module, a digital selector is respectively connected with the digital signal interface module, a first main processing chip and a second main processing chip, the first main processing chip is connected with a first low voltage differential signal interface module, the second main processing chip is connected with a second low voltage differential signal interface module, the first low voltage differential signal interface module is connected with the left half portion of a display panel, and the second low voltage differential signal interface module is connected with the right half portion of the display panel. The display capable of achieving the double-desktop operation function has the advantages that two desktops can be displayed simultaneously at one display panel, a user can simultaneously operate contents in the two desktops, thereby the work efficiency of the user is greatly improved, the convenience is brought for working and life of the user, and the enhancement of the product use experience of the display user is facilitated.
Description
Technical field
The present invention relates to household electrical appliance technical field, particularly relate to a kind of display realizing two desktop operated function.
Background technology
Along with the development of China's science and technology, the domestic electric appliances such as televisor, video camera, camera, computing machine are more and more universal in people's daily life, people often use computing machine to understand the information of outside and learn, and computing machine has become people and to have lived indispensable ingredient.
For current graphoscope, in use, by the data-interface of video card on main frame video signal transmission to the central signal processor DSP of display, after central signal processor DSP process, form differential signal to low-voltage differential signal LVDS interface module, by LVDS interface modules handle and output LOW voltage differential signal LVDS to display pannel, display pannel demonstrates video pictures.
Current graphoscope operationally, be merely able to display desktop, even if by the video card process of main frame, can realize switching the display of multiple desktop back and forth, but when startup second desktop (such as desktop B), first desktop (such as desktop A) will cover by this second desktop, two desktops can not be shown simultaneously, can not operate two desktops simultaneously.Therefore, current graphoscope is made troubles to user's routine use graphoscope, affects the work efficiency of user, and the product use sense seriously reducing user is subject to.
Therefore, at present in the urgent need to developing a kind of display, it can show two desktops on a display pannel simultaneously, and user can be operated the content of these two desktops simultaneously, thus greatly improve the work efficiency of user, offer convenience to the work of user and life.
Summary of the invention
In view of this, the object of this invention is to provide a kind of display realizing two desktop operated function, it can show two desktops on a display pannel simultaneously, and user can be operated the content of these two desktops simultaneously, thus greatly improve the work efficiency of user, offer convenience to the work of user and life, the product use sense being conducive to strengthening display user is subject to, and is of great practical significance.
For this reason, the invention provides a kind of display realizing two desktop operated function, panel the right and left of this display is respectively the left-half of display pannel and the right half part of display pannel, and this display includes:
Digital signal DVI interface module, for receiving the digital video signal that outer computer main frame sends, and is transmitted to data selector;
Data selector, be connected with the second main process chip with digital signal DVI interface module, the first main process chip respectively, for receive described digital signal DVI interface module forward digital video signal after, with the frequency preset, this digital video signal is alternately exported to the first main process chip and the second main process chip;
First main process chip, be connected with the first low-voltage differential signal LVDS interface module, for receive described data selector export digital video signal after, this digital video signal is processed, formed differential signal export to the first low-voltage differential signal LVDS interface module;
Second main process chip, be connected with the second low-voltage differential signal LVDS interface module, for receive described data selector export digital video signal after, this digital video signal is processed, formed differential signal export to the second low-voltage differential signal LVDS interface module;
First low-voltage differential signal LVDS interface module, is connected with the left-half of display pannel, and form low-voltage differential signal for the differential signal process that will receive, the left-half then exporting to display pannel carries out picture display;
Second low-voltage differential signal LVDS interface module, is connected with the right half part of display pannel, and form low-voltage differential signal for the differential signal process that will receive, the right half part then exporting to display pannel carries out picture display.
Wherein, described data selector alternating output signal preset the twice that frequency is the frequency equaling described digital signal DVI interface module output digital video signal.
Wherein, the frequency that presets of described data selector alternating output signal is 120HZ.
Wherein, also include a counter, this counter is connected with data selector, frequency for presetting according to described data selector counts in real time, then count results is informed data selector in real time, control data selector switch alternately sends received digital video signal to the first main process chip and the second main process chip according to the frequency preset.
Wherein, also include an integrated circuit (IC) control chip, described counter is connected with described integrated circuit (IC) control chip, described integrated circuit (IC) control chip is connected with digital signal DVI interface module, for receiving the signal that described digital signal DVI interface module place is transmitted, then by sampling, calculate the cycle of two width picture transmission, when calculating the cycle accurate of two width picture transmission, control counter 7 counts.
Wherein, also include a clock module, described counter is connected with described clock module, described clock module is used for presetting frequency according to described data selector to the first main process chip and the second main process chip alternating output signal, alternately produces a rising edge signal and a negative edge signal to counter.
From above technical scheme provided by the invention, compared with prior art, a kind of display realizing two desktop operated function provided by the invention, it can show two desktops on a display pannel simultaneously, and user can be operated the content of these two desktops simultaneously, thus greatly improves the work efficiency of user, offer convenience to the work of user and life, the product use sense being conducive to strengthening display user is subject to, and is of great practical significance.
Accompanying drawing explanation
Fig. 1 is the circuit structure block scheme of a kind of display realizing two desktop operated function provided by the invention when being connected with outer computer main frame;
Fig. 2 is the circuit structure block scheme of a kind of display realizing two desktop operated function provided by the invention a kind of embodiment when being connected with outer computer main frame;
In figure, 1 is the panel of display, and 11 is the left-half of display pannel, 12 is the right half part of display pannel, and 21 is the first low-voltage differential signal LVDS interface module, and 22 is the second low-voltage differential signal LVDS interface module, 31 is the first main process chip, 32 is the second main process chip, and 4 is data selector, and 5 is digital signal DVI interface module, 6 is integrated circuit (IC) control chip, 7 is counter, and 8 is clock module, and 9 is main frame.
Embodiment
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
See Fig. 1, the invention provides a kind of display realizing two desktop operated function, this display is connected with outer computer main frame, panel 1 the right and left of this display is respectively the left-half 11 of display pannel and the right half part 12 of display pannel, this display includes digital signal DVI interface module 5, main process chip 32, first low-voltage differential signal LVDS interface module 21, the second low-voltage differential signal LVDS interface module 22 of data selector the 4, first main process chip 31, second, wherein:
Digital signal (DVI) interface module 5, for receiving the digital video signal that outer computer main frame 9 sends, and is transmitted to data selector 4;
Data selector 4, be connected with the second main process chip 32 with the main process chip 31 of digital signal DVI interface module 5, first respectively, for receive described digital signal DVI interface module 5 forward digital video signal after, with the frequency preset, this digital video signal is alternately exported to the first main process chip 31 and the second main process chip 32;
First main process chip Main IC 31, be connected with data selector 4, first low-voltage differential signal LVDS interface module phase 21 respectively, for receive described data selector 4 export digital video signal after, this digital video signal is processed, forms differential signal and export to the first low-voltage differential signal LVDS interface module 21;
Second main process chip Main IC 32, be connected with data selector 4, second low-voltage differential signal LVDS interface module 22 respectively, for receive described data selector 4 export digital video signal after, this digital video signal is processed, forms differential signal and export to the second low-voltage differential signal LVDS interface module 22;
First low-voltage differential signal LVDS interface module 21, the left-half 11 of process chip 31 main with first, display pannel is connected respectively, differential signal process for receiving forms low-voltage differential signal, and the left-half 11 then exporting to display pannel carries out picture display;
Second low-voltage differential signal LVDS interface module 22, the right half part 12 of process chip 32 main with second, display pannel is connected respectively, differential signal process for receiving forms low-voltage differential signal, and the right half part 12 then exporting to display pannel carries out picture display;
In the present invention, described first low-voltage differential signal LVDS interface module 21 is connected with the right half part 12 of display pannel with the left-half 11 of display pannel, described second low-voltage differential signal LVDS interface module 22, controls the image display of display pannel left-half 11 and right half part 12 respectively.
In the present invention, described data selector 4 alternating output signal preset the twice that frequency preferably equals the frequency of described digital signal DVI interface module 5 output digital video signal.
It should be noted that, the optimum resolution can born in view of human eye is 60HZ, the frequency of usual digital signal DVI interface module output digital video signal is also 60HZ, so, digital video signal is alternately exported to the frequency that the first main process chip 31 and the second main process chip 32 preset and is preferably 120HZ by described data selector 4 of the present invention respectively, namely described data selector 4 is replace output digital video signal the cycle to the first main process chip 31 and the second main process chip 32 with the time of 1/120th second, thus the frequency of the digital video signal making the first main process chip 31 and the second main process chip 32 receive is all 60HZ, thus make the refreshing frequency of display pannel left-half 11 and right half part 12 be all 60HZ.Such as, a digital video signal be exported to the first main process chip 31 in first time of 1/120th second, a digital video signal be exported to the second main process chip 32 in so following second time of 1/120th second, repetitive operation again in 3rd time of 1/120th second, export a digital video signal to the first main process chip 31, Zhou Er like this renews, and alternately output digital video signal gives the first main process chip 31 and the second main process chip 32 back and forth.
See Fig. 2, in order to the real-time frequency to data selector 4 output digital video signal controls, display provided by the invention also includes a counter 7, this counter 7 is connected with data selector 4, frequency for presetting according to described data selector 4 counts in real time, then count results is informed data selector 4 in real time, control data selector switch 4 alternately sends received digital video signal to different main process chip (i.e. the first main process chip and the second main process chip) according to the frequency preset.
In the present invention, the process that the concrete control data selector switch 4 of described counter 7 works is: when counter 7 produces rising edge signal to data selector, digital signal transmission is given the first main process chip 31 by described data selector 4; When counter 7 produces negative edge signal to data selector 4, digital signal transmission is given the second main process chip 32 by described data selector.
Such as, when the described frequency preset is 120HZ, described counter 7 is that cycle alternate transport is to data selector 4 one rising edges or negative edge signal with the time of 1/120th second, when counter 7 produces rising edge signal to data selector, digital signal transmission is given the first main process chip 31 by described data selector 4; When counter 7 produces negative edge signal to data selector 4, digital signal transmission is given the second main process chip 32 by described data selector 4.The signal of the digital video signal making the first main process chip 31 and the second main process chip 32 receive like this to be frequency be 60HZ, then, after the first main process chip 32 and the second main process chip 32 process, export to display pannel 1 and show on the screen connected separately.
See Fig. 2, in order to ensure the count accuracy of described counter, display of the present invention also includes a clock module 8, integrated circuit (IC) control chip 6, and described counter 7 is connected with integrated circuit (IC) control chip 6 with described clock module 8 respectively, wherein:
Integrated circuit (IC) control chip 6, be connected with digital signal DVI interface module 5, for receiving the signal that described digital signal DVI interface module 5 place is transmitted, then by sampling, calculate the cycle of two width picture transmission, when calculating the cycle accurate of two width picture transmission, control counter 7 counts, the data synchronised that the digital video signal that the first main process chip 31 and the second main process chip 32 can be made like this to receive and digital signal DVI interface module 5 are transmitted, thus avoid occurring signal interference problem.
Clock module 8, be connected with counter 7, preset frequency (namely producing the frequency of rising edge or negative edge signal as clock module self) for what give the first main process chip 31 and the second main process chip 32 alternating output signal according to described data selector 4, alternately produce a rising edge signal and a negative edge signal to counter 7.Such as, the frequency of described clock module 8 is 12MHZ, so when counter 7 often counts 100000 times, will produce a rising edge or negative edge signal, and export to counter 7.
For display provided by the invention, by data selector 4, two main process chip can be given by identical digital signal transmission, the frequency that each main process chip receives digit chip is the frequency of digital signal DVI interface module output digital video signal, these two main process chip after convergent-divergent process is carried out to the digital video signal received, the data only on respective indicator screen received by (left-half of display pannel or right half part) display.Therefore, display of the present invention can demonstrate two desktops on same indicator screen, and allow user pass through main frame, the digital video signal realized main frame exports carries out editor control, the right half part 12 of the left-half 11 and display pannel of exporting to display pannel after editor control respectively shows, namely realize carrying out control operation to the content on two desktops, therefore, the present invention extends the display scope of subscriber computer greatly, improves the desk job efficiency of user.
Certainly, it should be noted that, display of the present invention is preferably LCD liquid crystal display, can also be three-dimensional (3D) display.
In sum, compared with prior art, a kind of display realizing two desktop operated function provided by the invention, it can show two desktops on a display pannel simultaneously, and user can be operated the content of these two desktops simultaneously, thus greatly improves the work efficiency of user, offer convenience to the work of user and life, the product use sense being conducive to strengthening display user is subject to, and is of great practical significance.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. can realize a display for two desktop operated function, it is characterized in that, panel the right and left of this display is respectively the left-half of display pannel and the right half part of display pannel, and this display includes:
Digital signal DVI interface module, for receiving the digital video signal that outer computer main frame sends, and is transmitted to data selector;
Data selector, be connected with the second main process chip with digital signal DVI interface module, the first main process chip respectively, for receive described digital signal DVI interface module forward digital video signal after, with the frequency preset, this digital video signal is alternately exported to the first main process chip and the second main process chip;
First main process chip, be connected with the first low-voltage differential signal LVDS interface module, for receive described data selector export digital video signal after, this digital video signal is processed, formed differential signal export to the first low-voltage differential signal LVDS interface module;
Second main process chip, be connected with the second low-voltage differential signal LVDS interface module, for receive described data selector export digital video signal after, this digital video signal is processed, formed differential signal export to the second low-voltage differential signal LVDS interface module;
First low-voltage differential signal LVDS interface module, is connected with the left-half of display pannel, and form low-voltage differential signal for the differential signal process that will receive, the left-half then exporting to display pannel carries out picture display;
Second low-voltage differential signal LVDS interface module, is connected with the right half part of display pannel, and form low-voltage differential signal for the differential signal process that will receive, the right half part then exporting to display pannel carries out picture display.
2. display as claimed in claim 1, is characterized in that, described data selector alternating output signal preset the twice that frequency is the frequency equaling described digital signal DVI interface module output digital video signal.
3. display as claimed in claim 2, it is characterized in that, the frequency that presets of described data selector alternating output signal is 120HZ.
4. display as claimed in claim 1, it is characterized in that, also include a counter, this counter is connected with data selector, frequency for presetting according to described data selector counts in real time, then count results is informed data selector in real time, control data selector switch alternately sends received digital video signal to the first main process chip and the second main process chip according to the frequency preset.
5. display as claimed in claim 4, it is characterized in that, also include an integrated circuit (IC) control chip, described counter is connected with described integrated circuit (IC) control chip, and described integrated circuit (IC) control chip is connected with digital signal DVI interface module, for receiving the signal that described digital signal DVI interface module place is transmitted, then by sampling, calculate the cycle of two width picture transmission, when calculating the cycle accurate of two width picture transmission, control counter counts.
6. the display as described in claim 4 or 5, it is characterized in that, also include a clock module, described counter is connected with described clock module, described clock module is used for presetting frequency according to described data selector to the first main process chip and the second main process chip alternating output signal, alternately produces a rising edge signal and a negative edge signal to counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110151284.0A CN102820020B (en) | 2011-06-08 | 2011-06-08 | Display capable of achieving double-desktop operation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151284.0A CN102820020B (en) | 2011-06-08 | 2011-06-08 | Display capable of achieving double-desktop operation function |
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| Publication Number | Publication Date |
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| CN102820020A CN102820020A (en) | 2012-12-12 |
| CN102820020B true CN102820020B (en) | 2015-05-27 |
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| CN201110151284.0A Expired - Fee Related CN102820020B (en) | 2011-06-08 | 2011-06-08 | Display capable of achieving double-desktop operation function |
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| CN107039003B (en) * | 2017-06-14 | 2019-07-02 | 深圳市华星光电半导体显示技术有限公司 | It is suitble to the data driving chip framework and sequence controller framework of AMOLED compensation |
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| CN1664659A (en) * | 2004-03-05 | 2005-09-07 | Nec液晶技术株式会社 | Liquid crystal display device and method for driving the same |
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