CN102982762B - A kind of display terminal - Google Patents
A kind of display terminal Download PDFInfo
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- CN102982762B CN102982762B CN201210573060.3A CN201210573060A CN102982762B CN 102982762 B CN102982762 B CN 102982762B CN 201210573060 A CN201210573060 A CN 201210573060A CN 102982762 B CN102982762 B CN 102982762B
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Abstract
The invention discloses a kind of display terminal, comprising: frequency detecting unit, for detecting the frequency of described display terminal place electrical network in real time; Switching command input block, for the frequency error factor steering order of Real-time Collection user input; Set of frequency unit, be connected with frequency detecting unit, switching command input block respectively, for receiving the frequency of display terminal place electrical network, the refreshing frequency of this frequency as display terminal is set, and the integral multiple of display terminal refreshing frequency is set to 3D synchronizing frequency, and prestore at least two kinds of mains frequencies, select wherein a kind of refreshing frequency as display terminal; Described 3D synchronizing frequency is the frequency that display terminal and outside 3D evaluation equipment carry out simultaneous display.A kind of display terminal disclosed by the invention, it can allow the display terminals such as televisor automatically and manually adjust 3D synchronizing frequency according to place electrical network, avoids user to have obvious flickering when wearing shutter type 3 D spectacles viewing 3D video.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of display terminal.
Background technology
Along with the development of China's science and technology, the domestic electric appliances such as televisor, video camera, camera are more and more universal in people's daily life, people often use display to understand the information of outside and learn, and display has become people and to have lived indispensable ingredient.
For display terminals such as current display and televisors, in order to realize shutter 3D Presentation Function, need the refreshing frequency synchronous (refreshing frequency of shutter type 3 D spectacles is the integral multiple of described display terminal refreshing frequency) by the refreshing frequency of shutter type 3 D spectacles and display terminal, thus realize 3D video capability.
At present, be subject to the frequency restriction of display terminal power supply, the display terminals such as the 3D display on sale for China and televisor, in order to realize shutter 3D Presentation Function, the synchronizing frequency between described shutter type 3 D spectacles and display terminal is generally fixed on 50Hz, but, for in Korea S, Japan, the national product sold such as the U.S., the synchronizing frequency (referred to as 3D synchronizing frequency) between described shutter type 3 D spectacles and display terminal is generally fixed on 60Hz.
When user is with the 3D video that 3D glasses viewing display terminal is being play, 3D synchronizing frequency is generally 50Hz or 60Hz.Be generally in indoor in view of user watches 3D video, most of time can open daylight lamp, and the frequency of domestic electrical network is 50Hz, thus the flicker frequency of daylight lamp is 50Hz.When 3D synchronizing frequency is 50Hz, because 3D glasses refreshing frequency is identical with daylight lamp flicker frequency, not flickering.But, when 3D synchronizing frequency be 60Hz, mains frequency be 50Hz time, or when mains frequency be 60Hz, 3D synchronizing frequency is 50Hz, due to user the brush screen frequency of daylight lamp flicker frequency in the environment and 3D glasses there are differences, user so will be caused when wearing 3D glasses, feel environment light have obvious flickering, thus cause the eye fatigue of user, not only seriously reduce the visual experience impression of user, and badly influence the healthy of user.
At present, for display terminals such as general Domestic Televisions, in order to overcome environment light user watched to the impact of 3D video, when producing, the synchronizing frequency (3D synchronizing frequency) between described shutter type 3 D spectacles and display terminal is arranged on 50Hz.But, if the display terminals such as these Domestic Televisions are exported to the U.S., when Japan and Korea S etc. are external, mains frequency due to locality is 60Hz, so user visually will have serious flicker sense, equally, if the televisor of foreign producer is sold to China, user can be made equally visually to have serious flicker sense.
Therefore, at present in the urgent need to developing a kind of technology, it can allow the display terminals such as televisor and shutter type 3 D spectacles have different 3D synchronizing frequencies in different countries, make 3D synchronizing frequency identical with the mains frequency of the country one belongs to, user is avoided to have obvious flickering when wearing shutter type 3 D spectacles viewing 3D video, strengthen the visual experience of user, bring convenience to the routine work of user and life, improve the quality of life of user.
Summary of the invention
In view of this, the object of this invention is to provide a kind of display terminal, it can allow the display terminals such as televisor and shutter type 3 D spectacles automatically and manually adjust 3D synchronizing frequency according to place electrical network, make 3D synchronizing frequency identical with the mains frequency of the country one belongs to, user is avoided to have obvious flickering when wearing shutter type 3 D spectacles viewing 3D video, strengthen the visual experience of user, bring convenience to the routine work of user and life, improve the quality of life of user, be of great practical significance.
For this reason, the invention provides a kind of display terminal, comprising:
Frequency detecting unit, for detecting the frequency of described display terminal place electrical network in real time, then sends to set of frequency unit;
Set of frequency unit, be connected with frequency detecting unit, for receiving the frequency of the display terminal place electrical network that described frequency detecting unit sends, the refreshing frequency of frequency as described display terminal of this display terminal place electrical network is set, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency;
Described 3D synchronizing frequency is the frequency that described display terminal and outside 3D evaluation equipment carry out simultaneous display.
Wherein, described frequency detecting unit comprises a field effect transistor Q, the grid G of described field effect transistor Q is connected with a resistance R1 with a resistance R2 respectively by a resistance R3, described resistance R1 ground connection, and described resistance R2 is connected with the live wire L of described display terminal place electrical network;
The source S ground connection of described field effect transistor Q, the drain D of described field effect transistor Q is connected with a resistance R5 with a resistance R4 respectively, described resistance R4 is connected with a supply voltage VCC, and described resistance R5 and first universal input export and control mouth GPIO1 and be connected.
Described display terminal, also comprises:
Switching command input block, is connected with described set of frequency unit, for the frequency error factor steering order of Real-time Collection user input, is then transmitted to set of frequency unit;
Described set of frequency unit, also for prestoring at least two kinds of mains frequencies, receive the frequency error factor steering order of user's input, then according to this frequency error factor steering order, the integral multiple of described display terminal refreshing frequency, as the refreshing frequency of described display terminal, and is set to 3D synchronizing frequency by corresponding selection wherein a kind of mains frequency.
Wherein, set of frequency unit is used for prestoring 50 hertz and 60 hertz of two kinds of mains frequencies;
Described switching command input block is the switch key that described display terminal is installed.
Wherein, described switching command input block comprises a switch key K, described switch key K one end ground connection, the other end of described switch key K meets a resistance R6 and resistance R7 respectively, described resistance R7 is connected with a supply voltage VCC, and described resistance R6 and second universal input export and control mouth GPIO2 and be connected.
Wherein, described display terminal is 3D display or 3D televisor.
Wherein, described set of frequency unit is central processor CPU, digital signal processor DSP or single-chip microprocessor MCU that described display terminal is installed.
From above technical scheme provided by the invention, compared with prior art, the invention provides a kind of display terminal, it can detect the frequency of described display terminal place electrical network automatically by frequency detecting unit, make set of frequency unit that the refreshing frequency of frequency as described display terminal of this display terminal place electrical network can be set, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency, can also allow user's artificial selection mains frequency simultaneously, make 3D synchronizing frequency identical with the mains frequency of the country one belongs to, achieve and the automatic control of the refreshing frequency of display terminal and Non-follow control are combined.Therefore, it is possible to effectively avoid user to have obvious flickering when wearing shutter type 3 D spectacles viewing 3D video, strengthen the visual experience of user, bring convenience to the routine work of user and life, the product use sense of remarkable enhancing user to display terminal is subject to, improve the quality of life of user, be of great practical significance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of display terminal embodiment one provided by the invention;
Fig. 2 is the circuit diagram of a kind of display terminal embodiment one medium frequency detecting unit provided by the invention;
Fig. 3 is the structural representation of a kind of display terminal embodiment two provided by the invention;
Fig. 4 is the circuit diagram of switching command input block in a kind of display terminal embodiment two provided by the invention.
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 terminal and comprise:
Frequency detecting unit 101, for detecting the frequency of described display terminal place electrical network in real time, then sends to set of frequency unit;
Set of frequency unit 102, be connected with frequency detecting unit 101, for receiving the frequency of the display terminal place electrical network that described frequency detecting unit sends, the refreshing frequency (i.e. field frequency) of frequency as described display terminal of this display terminal place electrical network is set, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency;
Described 3D synchronizing frequency is the frequency that described display terminal and outside 3D evaluation equipment (such as external shutter formula 3D glasses and other outside 3D evaluation equipments) carry out simultaneous display.In the present invention, described display terminal can comprise mobile phone, PDA(palm PC), any one such as mobile PC, panel computer, display has the device of menu display function.
In the present invention, in specific implementation, described set of frequency unit 102 can for central processor CPU, digital signal processor DSP or the single-chip microprocessor MCU that described display terminal is installed.
It should be noted that, for display terminal provided by the invention, the frequency of described display terminal place electrical network can be detected by frequency detecting unit, then the refreshing frequency (i.e. field frequency) of frequency as described display terminal of this display terminal place electrical network be set by set of frequency unit 102, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency, realizes allowing described display terminal and outside 3D evaluation equipment carry out simultaneous display.Therefore, the present invention can according to the frequency of automatic detection display terminal place electrical network and the refreshing frequency of corresponding adjustment display terminal and 3D synchronizing frequency, thus the display terminals such as televisor and shutter type 3 D spectacles can be allowed automatically to have different 3D synchronizing frequencies at different electrical networks (electrical network of such as country variant), make 3D synchronizing frequency identical with place mains frequency (mains frequency as the country one belongs to), user is avoided to have obvious flickering when wearing shutter type 3 D spectacles viewing 3D video, can realize watching equal flicker free sense with a display terminal in different countries, therefore the visual experience of user is strengthened, bring convenience to the routine work of user and life, the product use sense of remarkable enhancing user to display terminal is subject to, improve the quality of life of user, be of great practical significance.
In specific implementation, for the present invention, described display terminal is preferably 3D display or 3D televisor.
In the present invention, in specific implementation, see Fig. 2, described frequency detecting unit 101 comprises a field effect transistor MosfetQ, the grid G of described field effect transistor Q is connected with a resistance R1 with a resistance R2 respectively by a resistance R3, described resistance R1 ground connection, described resistance R2 is connected with the live wire L of described display terminal place electrical network, and described live wire is for inputting line voltage;
The source S ground connection of described field effect transistor Q, the drain D of described field effect transistor Q is connected with a resistance R5 with a resistance R4 respectively, described resistance R4 is connected with the supply voltage VCC of 3.3V size, and described resistance R5 and first universal input export and control mouth GPIO1 and be connected.
It should be noted that, see Fig. 2, from described display terminal place electrical network live wire input line voltage after resistance R2 and resistance R1 dividing potential drop, drive field effect transistor Q, mains voltage signal is converted to square-wave signal.Be specially: the low voltage drive field effect transistor Q after resistance R2 and resistance R1 dividing potential drop, when the voltage ratio source S height of the grid G of field effect transistor Q, field effect transistor Q conducting, from drain D pole output low level; When the voltage ratio source S of grid G is low, field effect transistor Q not conducting, drain D exports high level, thus realizes the conversion of sinusoidal signal and square-wave signal.
Square-wave signal is input to described first universal input and exports control mouth GPIO1, described first universal input exports and controls mouth GPIO1 for pre-setting two kinds of different mains frequencies and corresponding line voltage output level size and duration, and the duration of real time record square-wave signal, according to the duration of this square-wave signal, obtain corresponding mains frequency.
Such as, in specific implementation, for the electrical network of 50 hertz and 60 hertz, described first universal input exports control mouth GPIO1 can distinguish 50 hertz and 60 hertz by the duration of record square wave high level, wherein, the high level lasting time of 50Hz electrical network is longer than 60Hz, in addition, can also sue for peace to the square-wave signal high level time in multiple cycle (such as 10), to increase the separating capacity to 50Hz and 60Hz signal.
Therefore, for the present invention, automatically the frequency of described display terminal place electrical network can be detected by frequency detecting unit, make set of frequency unit that the refreshing frequency (i.e. field frequency) of frequency as described display terminal of this display terminal place electrical network can be set, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency, without the need to user's artificial selection mains frequency, achieve the automatic control of the refreshing frequency to display terminal, be conducive to facilitating user's regular job to control display terminal, can be reduced the working strength of user, the product use sense strengthening user is subject to.
See Fig. 3, display terminal provided by the invention also comprises: described switching command input block 103, also for the frequency error factor steering order of Real-time Collection user input, is then transmitted to set of frequency unit 102;
Accordingly, set of frequency unit 102, be connected with switching command input block 103, also for prestoring at least two kinds of mains frequencies, receive the frequency error factor steering order of user's input, then according to this frequency error factor steering order, the integral multiple of described display terminal refreshing frequency, as the refreshing frequency (i.e. field frequency) of described display terminal, and is set to 3D synchronizing frequency by corresponding selection wherein a kind of mains frequency.
Therefore, for display terminal provided by the invention, after having adjusted frequency according to frequency detecting unit, in order to the refreshing frequency allowing user can further facilitate user's manual control display terminal, user still can input manual frequency error factor steering order by switching command input block 103, mains frequency is manually adjusted, realize the refreshing frequency that manual switchover controls display terminal, in case stop-pass crosses the adjustment that detection of grid frequency carries out error, user not being glimmered when watching 3D video, meeting the actual user demand of user.
In the present invention, in specific implementation, for at least two kinds of mains frequencies in described set of frequency unit 102, can arrange according to the needs of user and display terminal manufacturer, user can the random time when first use and in use procedure set, can also set in advance when dispatching from the factory by display terminal manufacturer, to facilitate user, flexibly operation setting being carried out to mains frequency.Such as, the mains frequency 60Hz storing the U.S., Korea S, Japan can be set, China Power Grids frequency 50Hz.
In specific implementation, described set of frequency unit 102 is also for prestoring 50 hertz and 60 hertz of two kinds of mains frequencies.Described switching command input block 103 can for the switch key that described display terminal is installed, thus user can switch the refreshing frequency controlling described display terminal in a manual manner, be specially: user passes through Manual press switch key back and forth, namely by set of frequency unit 102, realize switching a kind of refreshing frequency as described display terminal (i.e. field frequency) in selection two kinds of mains frequencies, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency.
See Fig. 4, described switching command input block 103 comprises a switch key K, described switch key K is for gathering the frequency error factor steering order (such as switch order) of user's input, described switch key K one end ground connection, the other end of described switch key K meets a resistance R6 and resistance R7 respectively, described resistance R7 is connected with the supply voltage VCC of a 3.3V size, and described resistance R6 and second universal input export and control mouth GPIO2 and be connected;
Described second universal input exports the frequency error factor steering order controlling mouth GPIO2 and be used for receiving according to described switch key K, switches a kind of refreshing frequency as described display terminal in selection two kinds of mains frequencies.
In sum, compared with prior art, the invention provides a kind of display terminal, it can detect the frequency of described display terminal place electrical network automatically by frequency detecting unit, make set of frequency unit that the refreshing frequency (i.e. field frequency) of frequency as described display terminal of this display terminal place electrical network can be set, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency, can also allow user's artificial selection mains frequency simultaneously, make 3D synchronizing frequency identical with the mains frequency of the country one belongs to, achieve and the automatic control of the refreshing frequency of display terminal and Non-follow control are combined.Therefore, it is possible to effectively avoid user to have obvious flickering when wearing shutter type 3 D spectacles viewing 3D video, strengthen the visual experience of user, bring convenience to the routine work of user and life, the product use sense of remarkable enhancing user to display terminal is subject to, improve the quality of life of user, be 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 (7)
1. a display terminal, is characterized in that, comprising:
Frequency detecting unit, for detecting the frequency of described display terminal place electrical network in real time, then sends to set of frequency unit;
Set of frequency unit, be connected with frequency detecting unit, for receiving the frequency of the display terminal place electrical network that described frequency detecting unit sends, the refreshing frequency of frequency as described display terminal of this display terminal place electrical network is set, and the integral multiple of described display terminal refreshing frequency is set to 3D synchronizing frequency;
Described 3D synchronizing frequency is the frequency that described display terminal and outside 3D evaluation equipment carry out simultaneous display.
2. display terminal as claimed in claim 1, it is characterized in that, described frequency detecting unit comprises a field effect transistor Q, the grid G of described field effect transistor Q is connected with a resistance R1 with a resistance R2 respectively by a resistance R3, described resistance R1 ground connection, described resistance R2 is connected with the live wire L of described display terminal place electrical network;
The source S ground connection of described field effect transistor Q, the drain D of described field effect transistor Q is connected with a resistance R5 with a resistance R4 respectively, described resistance R4 is connected with a supply voltage VCC, and described resistance R5 and first universal input export and control mouth GPIO1 and be connected.
3. display terminal as claimed in claim 1, is characterized in that, also comprise:
Switching command input block, is connected with described set of frequency unit, for the frequency error factor steering order of Real-time Collection user input, is then transmitted to set of frequency unit;
Described set of frequency unit, also for prestoring at least two kinds of mains frequencies, receive the frequency error factor steering order of user's input, then according to this frequency error factor steering order, the integral multiple of described display terminal refreshing frequency, as the refreshing frequency of described display terminal, and is set to 3D synchronizing frequency by corresponding selection wherein a kind of mains frequency.
4. display terminal as claimed in claim 3, it is characterized in that, described set of frequency unit is used for prestoring 50 hertz and 60 hertz of two kinds of mains frequencies; Described switching command input block is the switch key that described display terminal is installed.
5. display terminal as claimed in claim 3, it is characterized in that, described switching command input block comprises a switch key K, described switch key K one end ground connection, the other end of described switch key K meets a resistance R6 and resistance R7 respectively, described resistance R7 is connected with a supply voltage VCC, and described resistance R6 and second universal input export and control mouth GPIO2 and be connected.
6. the display terminal according to any one of claim 1 to 5, is characterized in that, described display terminal is 3D display or 3D televisor.
7. the display terminal according to any one of claim 1 to 5, is characterized in that, described set of frequency unit is central processor CPU, digital signal processor DSP or single-chip microprocessor MCU that described display terminal is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210573060.3A CN102982762B (en) | 2012-12-26 | 2012-12-26 | A kind of display terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210573060.3A CN102982762B (en) | 2012-12-26 | 2012-12-26 | A kind of display terminal |
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| Publication Number | Publication Date |
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| CN102982762A CN102982762A (en) | 2013-03-20 |
| CN102982762B true CN102982762B (en) | 2015-11-18 |
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| CN201210573060.3A Expired - Fee Related CN102982762B (en) | 2012-12-26 | 2012-12-26 | A kind of display terminal |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473495B (en) * | 2019-09-12 | 2020-09-18 | 欧姆龙(上海)有限公司 | Method and device for refreshing light-emitting element |
| CN113473213B (en) * | 2021-09-03 | 2021-11-26 | 深圳佳力拓科技有限公司 | Digital television display method and device based on Bluetooth black screen glasses |
Citations (3)
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| CN102073140A (en) * | 2009-11-25 | 2011-05-25 | 歌尔声学股份有限公司 | Three-dimensional glasses and control method thereof |
| CN102547341A (en) * | 2011-12-20 | 2012-07-04 | 四川长虹电器股份有限公司 | Method for adjusting opening time of television three-dimensional (3D) glasses lenses |
| CN102710954A (en) * | 2012-05-17 | 2012-10-03 | 深圳Tcl新技术有限公司 | Method for synchronizing 3D (three dimensional) display equipment and glasses and 3D display equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10217867A1 (en) * | 2002-04-22 | 2003-11-13 | Nec Electronics Europ Gmbh | RF amplifier with switchable amplification |
| US20080246775A1 (en) * | 2005-08-27 | 2008-10-09 | Displaylink (Uk) Limited | Display System and a Method of Operating a Displaying System |
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2012
- 2012-12-26 CN CN201210573060.3A patent/CN102982762B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073140A (en) * | 2009-11-25 | 2011-05-25 | 歌尔声学股份有限公司 | Three-dimensional glasses and control method thereof |
| CN102547341A (en) * | 2011-12-20 | 2012-07-04 | 四川长虹电器股份有限公司 | Method for adjusting opening time of television three-dimensional (3D) glasses lenses |
| CN102710954A (en) * | 2012-05-17 | 2012-10-03 | 深圳Tcl新技术有限公司 | Method for synchronizing 3D (three dimensional) display equipment and glasses and 3D display equipment |
Non-Patent Citations (1)
| Title |
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| 绝不拖泥带水——100/120Hz倍频高清液晶电视对比选购指南;一流;《实用影音技术》;20080930;参见正文第14页 * |
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