CN1764284A - Display signal adjusting apparatus and method - Google Patents
Display signal adjusting apparatus and method Download PDFInfo
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- CN1764284A CN1764284A CN 200410086036 CN200410086036A CN1764284A CN 1764284 A CN1764284 A CN 1764284A CN 200410086036 CN200410086036 CN 200410086036 CN 200410086036 A CN200410086036 A CN 200410086036A CN 1764284 A CN1764284 A CN 1764284A
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Abstract
The invention relates to display signal adjust device and method to show optimal white balance in user environment. Wherein, the method comprises: sensing output signal level when inputting image signal to said PC; outputting adjust mode of A/D converter opposite to said signal level; with said adjust mode as standard, running A/D converter adjustment. Thereby, even user is unaware of the adjust function, it can also automatic run the function to improve convenience. It can also use the adjust mode not generated by PC signal to run the adjustment for A/D converter, avoids effect of PC noise, and improves reliability of product.
Description
Technical field
The present invention relates to display, specifically, relate under user environment, embody display signal adjusting apparatus and the method for best white balance (White Balance).
Background technology
In general, the image instrument of display and so on is all different because of the PC signal magnitude from the outside input, and when display was finally exported, the peak white of each signal (PeakWhite) can only be different.
Therefore, for the signal that makes the PC input embodies best white balance, be necessary to carry out the adjustment of the analog to digital converter (analog/digital conversion portion) of display interior.
On screen display (OSD:On Screen Display), append above-mentioned analog to digital converter and adjust function, the user is used in case of necessity.
The monitor signal method of adjustment of prior art will be described below.
At first, as shown in Figure 1, display receives picture signal input back output (S1) from the video card of PC.
Then, judge whether the user moves the automatic adjustment (S2) of analog to digital converter.
At this moment, above-mentioned analog to digital converter is adjusted function as shown in Figure 2, is positioned on the OSD of display, after the user confirms display picture, if judged result for being necessary to carry out the analog to digital converter adjustment, is just adjusted order by the OSD input analog-to-digital converter automatically.
For above-mentioned judged result (S2), if user's input analog-to-digital converter adjustment order just utilizes from the picture signal of above-mentioned PC video card input operation analog to digital converter adjustment (S3).
That is, the signal of importing with above-mentioned video card is as the criterion, and to the adjustment of PC signal operation analog to digital converter, makes the best digital value of display output.
Simultaneously, if the user does not have input analog-to-digital converter adjustment order, just use display (S4) with the level of signal of present PC.
So existing analog to digital converter method of adjustment is to be as the criterion with the picture signal that the PC video card is imported to move the analog to digital converter adjustment.
Yet there are the following problems for the monitor signal method of adjustment of above-mentioned prior art.
The 1st, the user who exists some to use display does not know that menu is provided with the situation that analog to digital converter is adjusted function.
The 2nd, the user moves before the analog-digital converter function, can not have best white balance adjustment.
The 3rd, use the PC signal because of the analog to digital converter adjustment, do not solve the noise in the video card picture signal.
That is, not only to the picture signal of PC input, and to being included in noise or other unwanted signal in the picture signal input, therefore the operation analog-digital converter function, exists undesirable possibility by color sensation performance picture.
Summary of the invention
The present invention is intended to address the above problem, and its purpose is, can move display signal adjusting apparatus and the method that analog to digital converter is adjusted automatically for embodying better white balance, providing under the client personal computer environment.
To achieve these goals, display signal adjusting apparatus of the present invention comprises: the signal input part that receives the picture signal of above-mentioned PC input, to the scaler of above-mentioned analog to digital converter output with the corresponding analog to digital converter adjustment modes of level of signal of above-mentioned signal input part input, induction is by the level of signal of above-mentioned signal input part input, and according to the level of signal of above-mentioned induction, analog to digital converter adjustment modes with above-mentioned scaler (Scaler) output is as the criterion, make it can adjust white balance, control the control part of above-mentioned analog to digital converter.
In addition, for achieving the above object, monitor signal method of adjustment of the present invention comprised as the next stage: if above-mentioned PC received image signal is just responded to stage of above-mentioned input signal grade; The stage of output and the corresponding analog to digital converter adjustment modes of above-mentioned induced signal grade; Analog to digital converter adjustment modes with above-mentioned output is as the criterion, the stage that the operation analog to digital converter is adjusted.
At this moment, output comprised with the stage of the corresponding analog to digital converter adjustment modes of above-mentioned induced signal grade, if whether judge the peak white grade of the picture signal of above-mentioned PC input is that stage and the above-mentioned peak white grade of 0.7V is not 0.7V, then output and stage of the corresponding analog to digital converter adjustment modes of peak white grade now.
Display signal adjusting apparatus of the present invention and method have following effect:
The 1st, even recognizing the analog to digital converter of display, the user do not adjust function, also move analog to digital converter automatically and adjust function, therefore, can embody best white balance all the time.
The 2nd, irrelevant with user's adjustment order, move analog to digital converter automatically according to the grade of present picture signal and adjust function, therefore, can make utilance and system effectiveness reach maximum.
The 3rd, utilization is not the adjustment modes that the display interior of PC signal produces, and therefore the adjustment of operation analog to digital converter, is not subjected to the influence of PC noise, can improve the trustworthiness of product.
Description of drawings
Fig. 1 is the flow chart of the monitor signal method of adjustment of prior art.
Fig. 2 adjusts the OSD picture of order automatically for input signal.
Fig. 3 is the pie graph of display signal adjusting apparatus of the present invention.
Fig. 4 is the flow chart of monitor signal method of adjustment of the present invention.
Accompanying drawing major part symbol description
10: video card 20: display
21: signal input part 22: control part
23: scaler 24: modulus (A/D) transducer
Embodiment
Embodiment to display signal adjusting apparatus of the present invention and method is elaborated below with reference to accompanying drawings.
At first, as shown in Figure 3, display signal adjusting apparatus of the present invention comprises: the signal input part 21 that receives the picture signal of above-mentioned video card 10 inputs, to the scaler 23 of above-mentioned analog to digital converter 24 outputs with the corresponding analog to digital converter adjustment modes of level of signal of above-mentioned signal input part 21 inputs, induction is by the level of signal of above-mentioned signal input part 21 inputs, and according to the level of signal of above-mentioned induction, analog to digital converter adjustment modes with above-mentioned scaler 23 outputs is as the criterion, make it can adjust white balance, control the control part 22 of above-mentioned analog to digital converter 24.
Display signal adjusting apparatus of the present invention moves the adjustment of analog to digital converter 24 according to the level of signal of above-mentioned video card 10 inputs.
In detail, when the user used display 20 first, the level of signal of video card 10 inputs of above-mentioned control part 22 induction PC, and control scaler 23 can be exported and the corresponding analog to digital converter pattern of the level of signal of above-mentioned induction it.
In addition, above-mentioned scaler 23 is utilized the level of signal of above-mentioned induction according to the control of control part 22, produces and the corresponding analog to digital converter adjustment modes of importing now of level of signal, and exports to analog to digital converter 24.
That is, the control part 22 of aforementioned display device 20 is adjusted white balance, and the adjustment modes of exporting with above-mentioned scaler 23 is as the criterion, the adjustment function of operation analog to digital converter 24.
Below, monitor signal method of adjustment of the present invention is elaborated.
As shown in Figure 4, at first, connect PC first, when using display 20, the level of signal (S10, S20) of video card 10 inputs of above-mentioned control part 22 induction PC.
At this moment, respond to the peak white grade of the picture signal of above-mentioned video card 10 inputs.
Then, whether the peak white grade of judging above-mentioned induction is 0.7V (S30).
For above-mentioned judged result (S30), if the peak white grade of above-mentioned picture signal is not 0.7V, then control above-mentioned scaler 23, to the corresponding analog to digital converter adjustment modes of level of signal (S40) of analog to digital converter 24 outputs with above-mentioned induction.
At this moment, above-mentioned control part 22 is in order to adjust best white balance to the picture signal of above-mentioned video card 10 inputs, and the adjustment modes of exporting with above-mentioned scaler 23 is as the criterion, and moves the adjustment function (S50) of above-mentioned analog to digital converter 24.
Simultaneously,,, just judge that the level of signal of present video card 10 is an optimum state if the peak white grade of above-mentioned picture signal is 0.7V for above-mentioned judged result (S30), and maintain the statusquo (S60).
If above-mentioned video card 10 received image signals, display 20 of the present invention moves the analog to digital converter adjustment automatically according to the level of signal of above-mentioned input.
In addition, the user can utilize the analog to digital converter on the OSD to adjust function, and the run signal grade is adjusted at any time.
Promptly, if user's input analog-to-digital converter adjustment order (S70), just according to user's adjustment order, (S40, S50) is identical with said process, be as the criterion the adjustment of operation analog to digital converter 24 with the corresponding adjustment modes of level of signal with present video card 10 inputs.
So the present invention according to the PC level of signal that is not the PC signal, utilizes the adjustment modes of the display 20 inner scaler that produces 23 outputs, the adjustment of operation analog to digital converter 24 for embodying the best white balance under the client personal computer environment.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content of embodiment, must determine its technical scope according to interest field.
Claims (3)
1, a kind of display signal adjusting apparatus is characterized in that, comprising:
Receive the signal input part of the picture signal of above-mentioned PC input;
To the scaler of above-mentioned analog to digital converter output with the corresponding analog to digital converter adjustment modes of level of signal of above-mentioned signal input part input;
Induction is by the level of signal of above-mentioned signal input part input, and according to the level of signal of above-mentioned induction, the analog to digital converter adjustment modes of exporting with above-mentioned scaler is as the criterion, and makes it can adjust white balance, controls the control part of above-mentioned analog to digital converter.
2, a kind of monitor signal method of adjustment is characterized in that, comprising:
If above-mentioned PC received image signal is just responded to stage of the level of signal of above-mentioned input;
The stage of output and the corresponding analog to digital converter adjustment modes of above-mentioned induced signal grade;
Analog to digital converter adjustment modes with above-mentioned output is as the criterion, and the operation analog to digital converter is adjusted the stage of function.
As claim item 2 described monitor signal methods of adjustment, it is characterized in that 3, output comprised with the stage of the corresponding analog to digital converter adjustment modes of above-mentioned induced signal grade:
Whether the peak white grade of judging the picture signal of above-mentioned PC input is the stage of 0.7V;
If above-mentioned peak white grade is not 0.7V, just output and the stage of the corresponding analog to digital converter adjustment modes of peak white grade now.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410086036 CN1764284A (en) | 2004-10-22 | 2004-10-22 | Display signal adjusting apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410086036 CN1764284A (en) | 2004-10-22 | 2004-10-22 | Display signal adjusting apparatus and method |
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| CN1764284A true CN1764284A (en) | 2006-04-26 |
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| CN 200410086036 Pending CN1764284A (en) | 2004-10-22 | 2004-10-22 | Display signal adjusting apparatus and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103621068A (en) * | 2011-06-22 | 2014-03-05 | 株式会社日立国际电气 | Television camera device |
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2004
- 2004-10-22 CN CN 200410086036 patent/CN1764284A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103621068A (en) * | 2011-06-22 | 2014-03-05 | 株式会社日立国际电气 | Television camera device |
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