CN100378674C - Method for detecting resolution ratio of electronic display device, storing media and display device - Google Patents
Method for detecting resolution ratio of electronic display device, storing media and display device Download PDFInfo
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- CN100378674C CN100378674C CNB2004100484542A CN200410048454A CN100378674C CN 100378674 C CN100378674 C CN 100378674C CN B2004100484542 A CNB2004100484542 A CN B2004100484542A CN 200410048454 A CN200410048454 A CN 200410048454A CN 100378674 C CN100378674 C CN 100378674C
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Abstract
The present invention relates to a method for detecting the resolution of an electronic display device. The present invention comprises the steps that the horizontal frequency, the vertical frequency and the number of horizontal lines of the electronic display device are received to calculate at least one theoretical resolution; the horizontal video point of the electronic display device is received; a horizontal refraction point is calculated according to the horizontal frequency and the horizontal video point, and the resolution adjustment mode of the electronic display device is judged according to the horizontal refraction point; finally, one optimum resolution is selected from at least one theoretical resolution according to the resolution adjustment mode.
Description
Technical field
The present invention relates to a kind of method of detected electrons display device, particularly a kind of after electronic display unit resolution is adjusted, detect the method for its optimum resolution.
Background technology
Traditionally, the electronic display unit that is connected with main frame has fixing resolution usually, for example 1600: 1200 (4: 3), and electronic display unit can often not change, so the display card in the main frame, as VGA card or the like, only need to support a kind of resolution usually.But progress along with computer-related technologies and Related product, the resolution of electronic display unit and specification be variation gradually, in the application of many computing machine Related products, the electronic display unit that may connect different size by a main frame, therefore can have different resolution, as 16: 9,16: 10 or the like, and display card must be able to be supported the electronic display unit of different resolution.
Existing method is to utilize display card to carry out emulation for various resolution.For example, suppose that its resolution of electronic display unit that links to each other with a main frame is 4: 3, then the display card in this main frame is just supported 4: 3 resolution.Changing electronic display unit when this main frame is resolution in the time of 16: 9, and then display card can be adjusted at 16: 9 resolution, is 16: 9 with original 4: 3 resolution emulation.For electronic display unit, though display card has carried out emulation, because electronic display unit can't be known simulation and the adjustment that display card carries out, therefore still can be with original resolution display frame, error or distortion when often causing picture to show.
Please refer to Fig. 1, Fig. 1 shows the method for electronic display unit in order to detection resolution.When electronic display unit is had some change, can produce new frequency, display card can detect new frequency and occur, and carries out emulation and adjustment (step S10) at resolution.Then electronic display unit detection level frequency (line rate, KHz), vertical frequency (frame rate, Hz) and horizontal line number (horizontal total) three parameters (step S12).Then, utilize several three parameters of horizontal frequency, vertical frequency and horizontal line to decide frequency data, promptly determine resolution (step S14).When display card is adjusted to some extent for the resolution of electronic display unit or during emulation, because an electronic display unit detection level frequency, vertical frequency and several three parameters of horizontal line, can't learn the resolution of display card institute emulation, therefore can't solve the problem of display distortion.
Therefore, how to effectively utilize the data of display card institute's emulation and adjustment, and then the resolution of detected electrons display device, be an important technology problem in fact.
Summary of the invention
In view of this, the present invention utilizes display card emulation to adjust the data that produced after the resolution, and then the resolution of detected electrons display device, and display frame according to this, improve the problem of picture display distortion and error, to adapt to the electronic display unit of various different sizes.
For reaching above-mentioned purpose, the invention provides a kind of method of detected electrons display device resolution.At first, receive horizontal frequency, vertical frequency and the horizontal line number of an electronic display unit, with theory of computation resolution, theoretical resolution can be a plurality of.Then, receive the horizontal video point (horizontal display) of this electronic display unit.Then, hide from view point (horizontal blank) according to horizontal frequency and horizontal video point calculated level, the horizontal blanking point is the difference for horizontal frequency and horizontal video point.Judge the resolution adjustment mode of electronic display unit again according to horizontal blanking point.Resolution is adjusted mode may be for increasing horizontal video point or reducing the horizontal line number.For example, original resolution is 4: 3, and resolution is the ratio of horizontal line number and horizontal video point, if desire to be adjusted into 16: 9, can utilize increase horizontal video point or minimizing horizontal line number to reach.Thereafter, can be according to optimum resolution display frame in electronic display unit.
Still comprise a step in the aforesaid resolution adjustment mode in order to calculate emulation resolution, emulation resolution is the ratio for horizontal line number and horizontal video point.When selecting optimum resolution, promptly according to the emulation resolution of being calculated by determining in the theoretical resolution.Aforesaid method is to cooperate a display card to use, and wherein horizontal frequency, vertical frequency, horizontal line number and horizontal video point are that display card produces thus.
Moreover the present invention proposes a kind of Storage Media, and in order to store a computer program, aforementioned calculation machine program is in order to be loaded in the computer system and to make aforementioned calculation machine system carry out the method step of foregoing detected electrons display device resolution.
Secondly, the present invention proposes a kind of electronic display unit, and (liquid crystal display, LCD) etc., this electronic display unit comprises a processing unit at least as LCD.With theory of computation resolution, theoretical resolution can be a plurality of processing unit in order to the horizontal frequency, vertical frequency and the horizontal line number that receive this electronic display unit.Processing unit also receives the horizontal video point of this electronic display unit.Calculate horizontal blanking point according to horizontal frequency and horizontal video point, the horizontal blanking point is the difference for horizontal frequency and horizontal video.Processing unit is judged the resolution adjustment mode of this electronic display unit again according to horizontal blanking point.Resolution adjustment mode is for increasing horizontal video point or reducing the horizontal line number.Adjust mode according to resolution, processing unit is by selecting an optimum resolution in the theoretical resolution.Thereafter electronic display unit can be according to optimum resolution display frame.
The processing unit of aforementioned electronic display device still comprises carries out a step to calculate emulation resolution, and emulation resolution is the ratio of horizontal line number and horizontal video point.When selecting optimum resolution, promptly according to the emulation resolution of being calculated by determining in the theoretical resolution.Aforesaid electronic display unit is to cooperate a display card to use, and wherein horizontal frequency, vertical frequency, horizontal line number and horizontal video point are that display card produces thus.In real the work, processing unit can be realized by a chip.
As from the foregoing, electronic display unit proposed by the invention can detect the parameter that is produced by display card, and utilizes various parameter decision simulation and the adjustment that display card carried out that detected, and then chooses best resolution, to solve the problem of display distortion.
Description of drawings
Fig. 1 shows the method for electronic display unit in order to detection resolution.
Fig. 2 is the flowchart that shows disclosed method.
Fig. 3 is the synoptic diagram that shows disclosed Storage Media.
Fig. 4 is the functional block diagram that shows an embodiment of disclosed electronic display unit.
The reference numeral explanation
The computer program of 32-detected electrons display device resolution; 320-receives the programmed logic of electronic display unit horizontal frequency, vertical frequency and horizontal line number; 322-receives the programmed logic of electronic display unit horizontal video point; The 324-calculated level hides from view programmed logic a little; 326-judges the programmed logic of resolution adjustment mode; 328-calculates the programmed logic of emulation resolution; 330-selects the programmed logic of optimum resolution; The 40-electronic display unit; The 42-processing unit.
Embodiment
Please refer to Fig. 2, Fig. 2 is the flowchart that shows disclosed method.The invention provides a kind of method of detected electrons display device resolution, this electronic display unit and a display card are used.At first, receive horizontal frequency, vertical frequency and the horizontal line number of electronic display unit, to calculate at least one theoretical resolution (step S20).Theoretical resolution can be one or more.Then receive the horizontal video point (step S22) of this electronic display unit.Wherein horizontal frequency, vertical frequency, horizontal line number and horizontal video point are produced by display card.
Then, horizontal frequency is deducted horizontal video point and calculate horizontal blanking point (step S24).Then, judge the resolution adjustment mode (step S26) of electronic display unit according to horizontal blanking point.Can judge according to horizontal blanking point that just display card is to adjust resolution in the mode that increases horizontal video point or minimizing horizontal line number.
Then, adjust mode according to resolution, calculate emulation resolution (step S28), emulation resolution is the ratio of horizontal line number and horizontal video point.Again according to emulation resolution, by the optimum resolution (step S30) of selecting electronic display unit at least one theoretical resolution.According to optimum resolution in electronic display unit show a picture (step S32) thereafter.
Please refer to Fig. 3, Fig. 3 is the synoptic diagram that shows disclosed Storage Media.As shown in the figure, the present invention proposes a kind of Storage Media 30, and in order to store a computer program 32, computer program 32 is in order to be loaded in the computer system and to make aforementioned calculation machine system carry out the method for foregoing detected electrons display device resolution.Computer program 32 comprises that mainly the horizontal frequency, vertical frequency and the horizontal line number that receive electronic display unit hides from view a little programmed logic 324, judges that resolution adjusts the programmed logic 326 of mode, calculates the programmed logic 328 of emulation resolution and the programmed logic 330 of selecting optimum resolution with the programmed logic 320 of theory of computation resolution, the programmed logic 322, the calculated level that obtain the electronic display unit horizontal video point.
Please refer to Fig. 4, Fig. 4 is the functional block diagram that shows an embodiment of disclosed electronic display unit.In this embodiment, the present invention proposes a kind of electronic display unit 40, and electronic display unit 40 comprises a processing unit 42 at least.
Calculating at least one theoretical resolution, processing unit 42 also receives the horizontal video point of electronic display unit 40 to processing unit 42 in order to the horizontal frequency, vertical frequency and the horizontal line number that receive electronic display unit 40.Processing unit 42 hides from view a little according to horizontal frequency and horizontal video point calculated level, and the horizontal blanking point is the difference of horizontal frequency and horizontal video.Processing unit 42 is judged the resolution adjustment mode of electronic display unit 40 again according to horizontal blanking point, resolution adjustment mode is to increase horizontal video point or reduce the horizontal line number.Adjust mode according to resolution, by selecting an optimum resolution at least one theoretical resolution.Thereafter, electronic display unit 40 can show a picture according to optimum resolution.
Still comprise a step in the aforesaid resolution adjustment mode in order to calculate emulation resolution, emulation resolution is the ratio of horizontal line number and horizontal video point.When selecting optimum resolution, promptly according to the emulation resolution of being calculated by determining at least one theoretical resolution.Aforesaid method is to cooperate a display card to use, and wherein horizontal frequency, vertical frequency, horizontal line number and horizontal video point are that display card produces thus.In real the work, processing unit 42 can be realized by a chip.
For example, use the resolution of method detected electrons display device proposed by the invention.Suppose that original resolution is 1600: 1200, and the resolution of changing behind the electronic display unit is 1920: 1200, horizontal frequency is generally fixed value, is assumed to be 2160.The method of the resolution of detected electrons display device comprises the following step.At first, receive horizontal frequency, vertical frequency and the horizontal line number of electronic display unit, to calculate at least one theoretical resolution, promptly 1600: 1200 and 1920: 1200.Receive the horizontal video point of electronic display unit again, promptly 1600.
Then, horizontal frequency is deducted horizontal video point and obtain horizontal blanking point 2160-1600=560.When display card carried out emulation for resolution, the horizontal blanking point can become 2160-1920=240.Therefore can judge the resolution adjustment mode of electronic display unit according to horizontal blanking point.In the present embodiment, because 240＜560, therefore can judge display card according to horizontal blanking point is with the mode that the increases horizontal video point resolution after with the emulation change.
Again horizontal blanking point and horizontal video point are divided by, promptly obtain emulation resolution 240/1920=0.125.According to emulation resolution, by the optimum resolution of selecting electronic display unit at least one theoretical resolution, promptly 1920: 1200., according to optimum resolution in electronic display unit in show a picture, avoid problems such as display distortion and error thereafter.
Comprehensive speech, the present invention proposes a kind of method of detected electrons display device resolution, when being used for electronic display unit and having some change, according to the data that display card produced, judge simulation and the adjustment carried out, and then cooperate adjusted resolution display frame, and solve the insurmountable problem of present technology, reach the purpose that the present invention desires to reach.
Foregoing method and device are to provide a dynamic and sound solution at the problem that the resolution of electronic display unit detects.If preceding method and device are had some change under certain conditions, for example the electronic product at the kind of electronic display unit or electronic display unit place is had some change, and then disclosed method and device are when the different demands that can adjust with in response to practical application the time thereupon.
Method and system proposed by the invention, perhaps wherein some is partly, may be realized in the mode of computer program (computer instruction), this computer program (computer instruction) may be built and place the entity Storage Media, can distinguish in the Storage Media of reading as floppy disk (floppy diskettes), CD (CD-ROMS), hard disk (hard drives) or other any machine.When aforesaid computer program (computer instruction) when loading as machines such as computing machines and carrying out, this machine that loads computer program (computer instruction) promptly is converted to one in order to realize device of the present invention.Moreover, disclosed method and system can computer program (computer instruction) mode transmit via transmission medium, as electric wire (electricalwire), cable (cable), optical fiber (fiber optics) or other any transmission medium that transmits.When aforementioned computer program (computer instruction) via transmission medium transmission via as machines such as computing machine when loading and carrying out, machine of this loading computer program (computer instruction) promptly is converted to one in order to realize device of the present invention.Again moreover, disclosed method and system can computer program (computer instruction) kenel be applied in general purpose (general-purpose) processor, when the aforementioned computer program (computer instruction) that is applied to general purpose processor combines with this processor, promptly provide one in order to realize device of the present invention, its function is equivalent to have the logical circuit (logiccircuits) of specific function.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing 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 as the criterion when looking accompanying the claim person of defining.
Claims (11)
1. the method for a detected electrons display device resolution comprises the following steps:
(a) horizontal frequency, a vertical frequency and a horizontal line number of reception one electronic display unit are to calculate at least one theoretical resolution;
(b) horizontal video point of the above-mentioned electronic display unit of reception;
(c) calculate horizontal blanking point according to above-mentioned horizontal frequency and above-mentioned horizontal video point, this horizontal blanking point is the difference of above-mentioned horizontal frequency and above-mentioned horizontal video point;
(d) adjust mode according to a resolution of the above-mentioned electronic display unit of above-mentioned horizontal blanking point judgement; And
(e) adjust mode according to above-mentioned resolution, calculate an emulation resolution, this emulation resolution is the ratio of above-mentioned horizontal line number and above-mentioned horizontal video point, according to this emulation resolution, in above-mentioned at least one theoretical resolution, select an optimum resolution of above-mentioned electronic display unit.
2. the method for detected electrons display device resolution as claimed in claim 1 still comprises a step
(f) in above-mentioned electronic display unit, show a picture according to above-mentioned optimum resolution.
3. the method for detected electrons display device resolution as claimed in claim 1, wherein, above-mentioned resolution adjustment mode is to increase above-mentioned horizontal video point.
4. the method for detected electrons display device resolution as claimed in claim 1, wherein, above-mentioned resolution adjustment mode is to reduce above-mentioned horizontal line number.
5. the method for detected electrons display device resolution as claimed in claim 1 is to cooperate a display card to use, and wherein, above-mentioned horizontal frequency, above-mentioned vertical frequency, above-mentioned horizontal line number and above-mentioned horizontal video point are produced by above-mentioned display card.
6. electronic display unit, above-mentioned electronic display unit comprises at least:
One processing unit, in order to receive a horizontal frequency of above-mentioned electronic display unit, one vertical frequency and a horizontal line number, to calculate at least one theoretical resolution, above-mentioned processing unit receives a horizontal video point of above-mentioned electronic display unit again, calculate horizontal blanking point according to above-mentioned horizontal frequency and above-mentioned horizontal video point, this horizontal blanking point is the difference of above-mentioned horizontal frequency and above-mentioned horizontal video point, and according to above-mentioned horizontal blanking point, judge the resolution adjustment mode of above-mentioned electronic display unit, above-mentioned processing unit is more in order to adjust mode according to above-mentioned resolution, calculate an emulation resolution, this emulation resolution is the ratio of above-mentioned horizontal line number and above-mentioned horizontal video point, according to this emulation resolution, in above-mentioned at least one theoretical resolution, select an optimum resolution.
7. electronic display unit as claimed in claim 6, wherein, above-mentioned electronic display unit still shows a picture according to above-mentioned optimum resolution.
8. electronic display unit as claimed in claim 6, wherein, above-mentioned resolution adjustment mode is to increase above-mentioned horizontal video point.
9. electronic display unit as claimed in claim 6, wherein, above-mentioned resolution adjustment mode is to reduce above-mentioned horizontal line number.
10. electronic display unit as claimed in claim 6 is to cooperate a display card to use, wherein, above-mentioned horizontal frequency, above-mentioned vertical frequency, above-mentioned horizontal line number and above-mentioned horizontal video point produced by above-mentioned display card.
11. electronic display unit as claimed in claim 6, wherein, above-mentioned processing unit is a chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100484542A CN100378674C (en) | 2004-06-10 | 2004-06-10 | Method for detecting resolution ratio of electronic display device, storing media and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100484542A CN100378674C (en) | 2004-06-10 | 2004-06-10 | Method for detecting resolution ratio of electronic display device, storing media and display device |
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| CN1707437A CN1707437A (en) | 2005-12-14 |
| CN100378674C true CN100378674C (en) | 2008-04-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186274A (en) * | 1996-12-26 | 1998-07-01 | 佳能株式会社 | Display control apparatus and method |
| CN1281154A (en) * | 1999-07-20 | 2001-01-24 | 三星电子株式会社 | Device and method for automatic control of liquid crystal display equipment screen state |
| US6567092B1 (en) * | 1999-02-10 | 2003-05-20 | Microsoft Corporation | Method for interfacing to ultra-high resolution output devices |
| CN1440001A (en) * | 2002-02-22 | 2003-09-03 | 索尼英国有限公司 | Image processor |
-
2004
- 2004-06-10 CN CNB2004100484542A patent/CN100378674C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186274A (en) * | 1996-12-26 | 1998-07-01 | 佳能株式会社 | Display control apparatus and method |
| US6567092B1 (en) * | 1999-02-10 | 2003-05-20 | Microsoft Corporation | Method for interfacing to ultra-high resolution output devices |
| CN1281154A (en) * | 1999-07-20 | 2001-01-24 | 三星电子株式会社 | Device and method for automatic control of liquid crystal display equipment screen state |
| CN1440001A (en) * | 2002-02-22 | 2003-09-03 | 索尼英国有限公司 | Image processor |
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| CN1707437A (en) | 2005-12-14 |
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