CN1997128A - Method for automatic brightness adjustment of the TV - Google Patents
Method for automatic brightness adjustment of the TV Download PDFInfo
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- CN1997128A CN1997128A CN 200610098376 CN200610098376A CN1997128A CN 1997128 A CN1997128 A CN 1997128A CN 200610098376 CN200610098376 CN 200610098376 CN 200610098376 A CN200610098376 A CN 200610098376A CN 1997128 A CN1997128 A CN 1997128A
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- 230000000694 effects Effects 0.000 description 8
- 230000035807 sensation Effects 0.000 description 3
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- 238000006467 substitution reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
This invention discloses one television shell brightness adjust method, which comprises the following steps: a, setting one light sensor parts in television to get current environment brightness value; b, comparing the current environment brightness value with television received signal brightness value with stored brightness adjust list to get the television brightness and to automatically adjust the brightness value.
Description
Technical field
The present invention relates to television set, the luminance regulating method of television set especially, specifically a kind of television set method for automatic brightness adjustment.
Background technology
Current, the hommization of household electrical appliance, intelligent degree are more and more higher.Various advanced technologies have been penetrated into household appliance technical field, and the function of various automations is provided, for daily life has been brought convenience.The introducing of various automation equipments, the control of the aspects such as various amounts, degree and time in the also accurate life has improved people's quality of life.The image acquisition visual information that people show by television screen.The brightness and contrast of television set is two important parameters of television set, directly influences human eye.So the brightness and contrast is realized that automatic adjustment can improve television set greatly and watch effect, keep the best state of watching constantly, and can protect people's eyes, realize healthy TV.
The bright-dark degree of the light that so-called brightness is sent with regard to the television screen that is meant demonstration.The expression of television set color mainly is to mix by the redgreenblue with different bright-dark degrees, to represent different colors.Human eye is to the sensation of bright-dark degree even more more obvious than the sensation of color.Promote the brightness of television set, will promote the bright degree of each color component of RGB.
So-called contrast is meant at television set under certain state the brightness ratio when showing certain picture between the point of the point of maximum brightness and minimum brightness.Because the restriction of television set physical equipment, contrast can not have so big light and shade contrast as the picture that nature is seen.So the lifting contrast can make bright point brighter, dark point is darker, can obtain the clearly more demarcated image of color like this.
The brightness and contrast's of television set adjustment is cumbersome, is not high more good more.The image that it and you play, many factors such as surrounding environment light are relevant, if adjust badly, even can cause certain damage to human eye.How relatively to be fit to the brightness and contrast that watches, general television set producer all can provide one group of luminance contrast numerical value that sets, and allows user oneself relatively select, for example some isotypes such as soft, dynamic, highlighted.But can not summarize all complex situations with this dot pattern all the time.
Summary of the invention
The objective of the invention is at the brightness adjustment modes in the existing television set single, and must manually adjust and can not suitable environment changing of bringing, the problem of effect is watched in influence, invents a kind of television set method for automatic brightness adjustment.
Technical scheme of the present invention is:
A kind of television set method for automatic brightness adjustment is characterized in that it may further comprise the steps:
The first step is provided with a photoinduction device in television set, to obtain the current environment brightness value;
In second step, the brightness adjustment form of storing in regularly that the current environment brightness value that obtains and television set is received luminance signals value and the television set compares, and obtains television set brightness, and adjusts to this brightness value automatically.
Television set is added the adjusted value of corresponding difference as television set brightness after obtaining brightness value in the received luminance signals value of the current environment brightness value that obtains and television set and with the brightness adjustment form contrast of storage, and the brightness value of the self-adjusting brightness value of TV and user's manual adjustment was poor when this difference equaled a certain ambient brightness.
The present invention has the following advantages:
The present invention utilizes the built-in transducer of TV, can the self-defining time cycle the bright degree of external environment condition be taken a sample with the user, and to the sampling the result analyze, according to sampled result the brightness of current television set is judged, see and whether meet current environment brightness, if do not meet,, can reach best view reception effect to man-machine interface with regard to automatically the brightness of television set being adjusted.
Description of drawings
Fig. 1 is that FB(flow block) is adjusted in brightness of the present invention automatically.
Fig. 2 is ambient brightness and the received signal brightness and the adjusted brightness relationship table of comparisons of the embodiment of the invention.
Embodiment
The present invention is further illustrated for following structure drawings and Examples.
As shown in Figure 1, 2.
Increase a photoinduction device in that television set is inner, come to external world the light of environment to sample, judge current environment brightness,, carry out the brightness and the contrast adjustment of television set itself again in conjunction with the bright degree of television set inside to shows signal.In TV set software, increase a table of comparisons, comprising current environment brightness, signal lightness and television set luminance contrast (as shown in Figure 2, it can obtain by normal experiment).After collecting ambient brightness and luminance signals, carry out table lookup operation, be adjusted into the luminance contrast of indicating in the table afterwards automatically.
Because human eye can not be fit to the user fully to the difference of light sensation, wherein introduces difference again.Allow the user that automatic adjusted luminance contrast is adjusted again.Simultaneously, television set is noted the difference with default value.Next time is when adjusting the light and shade state, if default value then counts user's difference factor, if user's adjusted value then directly is written into user's adjusted value again.
Because external environment changes, so there is one-period in the sampling time, but the cycle can not be too short, in order to avoid the burden of increase television processor.So can a time cycle defined by the user, with the variation that conforms.
The concrete course of work of the present invention is as follows:
At first get access to after ambient brightness and the luminance signals, table look-up and obtain difference information.Difference information (in the table difference hurdle for empty) is arranged, export brightness after then will adjusting back brightness and adjusting back contrast and separately difference addition and contrast value is adjusted automatically to television set.If there is not difference information, then by formula:
Brightness value=ambient brightness+environment and effect of signals factor * luminance signals
Calculate current brightness value earlier.Again all there is the brightness value of the data of difference information to calculate, generate new brightness value table, and by brightness value ordering (if the difference mean value that will get them of same brightness value is arranged, guarantee that brightness value is unique in the new table), again and will inquire about in this brightness value substitution table, obtain user's difference at contiguous two ends, and the calculating of substitution following formula, draw environment and effect of signals factor.Again environment and effect of signals factor being added that table is gone up outputs to television set after adjusted brightness and the contrast and carries out the luminance contrast adjustment.
Illustrate:
Example 1: when we obtain ambient brightness 230 and luminance signals 210 by transducer, be 32 by the acquisition adjustment back brightness of tabling look-up, user's difference-1 is adjusted back contrast 67, user's difference 2.Automatically to adjust brightness be 32-1=31 to television set thus, and contrast is 67+2=69.
Example 2: when we obtain ambient brightness 196 and luminance signals 148 by transducer, be 55 by the acquisition adjustment back brightness of tabling look-up, user's difference is empty, and contrast 32 after adjusting, user's difference are sky.By brightness values all in the computational chart, get the numerical value that closes on two ends.If environment and effect of signals factor are 1, then
Brightness value==ambient brightness+1 * luminance signals be brightness value==ambient brightness+luminance signals
The brightness value of our current television set is 196+148=344, gets the numerical value that closes on two ends in the table and finds that 136+128=264 and 230+210=440 close on two ends for it.
It is 55-2=53 that television set is adjusted brightness automatically, and contrast is 32+4=36.
Because the processor resource of most of television sets lacks, therefore need built-in one and be with analog-to-digital single-chip microcomputer.To carry out analog-to-digital conversion by the signal that transmits of light sensor, to obtain brightness number.
Numerical value and environment and effect of signals factor in the table of comparisons will repeatedly be tested definitely by many people, obtaining popular parameter, and in time revise according to client's response situation, to obtain good adaptability.Can in a little customer group, gather user's difference, and reality acquiescence numerical value is analyzed, and revision in time.
Claims (2)
1, a kind of television set method for automatic brightness adjustment is characterized in that it may further comprise the steps:
The first step is provided with a photoinduction device in television set, to obtain the current environment brightness value;
In second step, the brightness adjustment form of storing in regularly that the current environment brightness value that obtains and television set is received luminance signals value and the television set compares, and obtains television set brightness, and adjusts to this brightness value automatically.
2, television set method for automatic brightness adjustment according to claim 1, it is characterized in that adding the adjusted value of corresponding difference as television set brightness after television set obtains brightness value in the received luminance signals value of the current environment brightness value that obtains and television set and with the brightness adjustment form contrast of storage, the brightness value of the self-adjusting brightness value of TV and user's manual adjustment was poor when this difference equaled a certain ambient brightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610098376 CN1997128A (en) | 2006-12-14 | 2006-12-14 | Method for automatic brightness adjustment of the TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610098376 CN1997128A (en) | 2006-12-14 | 2006-12-14 | Method for automatic brightness adjustment of the TV |
Publications (1)
| Publication Number | Publication Date |
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| CN1997128A true CN1997128A (en) | 2007-07-11 |
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| CN 200610098376 Pending CN1997128A (en) | 2006-12-14 | 2006-12-14 | Method for automatic brightness adjustment of the TV |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810306A (en) * | 2012-07-26 | 2012-12-05 | 广东欧珀移动通信有限公司 | An automatic control method for display screen wallpaper brightness |
| CN103531174A (en) * | 2013-10-29 | 2014-01-22 | 京东方科技集团股份有限公司 | Brightness adjusting device and method |
| CN104954844A (en) * | 2015-06-25 | 2015-09-30 | 深圳Tcl数字技术有限公司 | User position based image adjusting method and device as well as television system |
| WO2018233476A1 (en) * | 2017-06-19 | 2018-12-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and apparatus for adjusting screen luminance, terminal device and storage medium |
-
2006
- 2006-12-14 CN CN 200610098376 patent/CN1997128A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810306A (en) * | 2012-07-26 | 2012-12-05 | 广东欧珀移动通信有限公司 | An automatic control method for display screen wallpaper brightness |
| CN102810306B (en) * | 2012-07-26 | 2015-01-07 | 广东欧珀移动通信有限公司 | Method for automatically controlling brightness of display screen wallpaper |
| CN103531174A (en) * | 2013-10-29 | 2014-01-22 | 京东方科技集团股份有限公司 | Brightness adjusting device and method |
| CN104954844A (en) * | 2015-06-25 | 2015-09-30 | 深圳Tcl数字技术有限公司 | User position based image adjusting method and device as well as television system |
| CN104954844B (en) * | 2015-06-25 | 2019-04-02 | 深圳Tcl数字技术有限公司 | Image adjusting method, device and television system based on user location |
| WO2018233476A1 (en) * | 2017-06-19 | 2018-12-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and apparatus for adjusting screen luminance, terminal device and storage medium |
| US10522096B2 (en) | 2017-06-19 | 2019-12-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for adjusting screen luminance, terminal device and storage medium |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |