CN102663985B - Contrast and brightness linkage adjustment method and device - Google Patents

Contrast and brightness linkage adjustment method and device Download PDF

Info

Publication number
CN102663985B
CN102663985B CN201210118184.2A CN201210118184A CN102663985B CN 102663985 B CN102663985 B CN 102663985B CN 201210118184 A CN201210118184 A CN 201210118184A CN 102663985 B CN102663985 B CN 102663985B
Authority
CN
China
Prior art keywords
contrast
adjustment
brightness
brightness value
luminance threshold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201210118184.2A
Other languages
Chinese (zh)
Other versions
CN102663985A (en
Inventor
陈虹燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Skyworth RGB Electronics Co Ltd
Original Assignee
Shenzhen Skyworth RGB Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Skyworth RGB Electronics Co Ltd filed Critical Shenzhen Skyworth RGB Electronics Co Ltd
Priority to CN201210118184.2A priority Critical patent/CN102663985B/en
Publication of CN102663985A publication Critical patent/CN102663985A/en
Application granted granted Critical
Publication of CN102663985B publication Critical patent/CN102663985B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a contrast and brightness linkage adjustment method and device. The method comprises the following steps: comparing a adjusted brightness value with a brightness threshold after brightness increasing adjustment signals are detected, and adjusting the current contrast when the adjusted brightness value is larger than the brightness threshold. The method has the advantages that the adjusted brightness value is compared with the brightness threshold, and when the adjusted brightness value is larger than the brightness threshold, the contrast is properly reduced, so that the image brightness is properly reduced, image pixel points are prevented from dropping into a high-brightness saturation range, and the image definition and the integrity are effectively guaranteed.

Description

Contrast and brightness interlock method of adjustment and device
Technical field
The present invention relates to display technology field, specially refer to contrast and brightness interlock method of adjustment and device.
Background technology
At present; when user watches the picture of the outputs such as TV, computer or advertisement screen by display; in order to make display frame more clear, allow darker part in picture become clear, usually can adjust the brightness of image model one hurdle setting in user's display interface or contrast option.Under normal circumstances, brightness or contrast to display regulate, and all can change the bright degree of display frame.But, when display frame is adjusted when bright, although be improved compared with the sharpness of dark-part details in picture, the details of dividing compared with highlights in picture is but because highlighted saturated, cause that details is fuzzy to be hard to tell, user will see incomplete picture, have a strong impact on user's visual effect.
Summary of the invention
Fundamental purpose of the present invention is for providing a kind of highlighted saturated contrast of display frame and brightness interlock method of adjustment and device avoided.
The present invention proposes a kind of contrast and brightness interlock method of adjustment, comprises step:
In the time detecting that brightness increases adjustment signal, the brightness value after relatively adjusting and the size of luminance threshold;
When brightness value after described adjustment is greater than described luminance threshold, adjust current contrast.
Preferably, when described brightness value after adjustment is greater than described luminance threshold, the step of adjusting current contrast specifically comprises:
In the time that the brightness value after described adjustment is greater than described luminance threshold, judge whether current contrast is greater than [contrast threshold-(brightness value-luminance threshold after adjustment)];
If so, current contrast is adjusted into [contrast threshold-(brightness value-luminance threshold after adjustment)];
If not, retain current contrast.
Preferably, described contrast and brightness interlock method of adjustment, also comprise:
In the time detecting that brightness reduces to adjust signal, the brightness value before relatively adjusting and the size of luminance threshold;
When brightness value before described adjustment is greater than described luminance threshold, adjust current contrast.
Preferably, when described brightness value before adjustment is greater than described luminance threshold, the step of adjusting current contrast specifically comprises:
In the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is greater than described luminance threshold, judge whether current contrast is less than [contrast threshold-(brightness value-luminance threshold after adjustment)];
If so, current contrast is adjusted into [contrast threshold-(brightness value-luminance threshold after adjustment)];
If not, retain current contrast.
Preferably, when described brightness value before adjustment is greater than described luminance threshold, the step of adjusting current contrast specifically also comprises:
In the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is less than or equal to described luminance threshold, current contrast is adjusted into the contrast displayed value in user's display interface.
The present invention also proposes a kind of contrast and brightness interlock adjusting gear, comprising:
The first brightness comparison module, in the time detecting that brightness increases adjustment signal, the brightness value after relatively adjusting and the size of luminance threshold;
The first contrast adjusting module, while being greater than described luminance threshold, adjusts current contrast for the brightness value after described adjustment.
Preferably, described the first contrast adjusting module specifically comprises:
The first contrast comparing unit, in the time that the brightness value after described adjustment is greater than described luminance threshold, judges whether current contrast is greater than [contrast threshold-(brightness value-luminance threshold after adjustment)];
The first contrast adjustment unit, when be greater than [contrast threshold-(brightness value-luminance threshold after adjustment)] in current contrast, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)]; Be less than or equal to [contrast threshold-(brightness value-luminance threshold after adjustment)] during in current contrast, retain current contrast.
Preferably, described contrast and brightness interlock adjusting gear, also comprise:
The second brightness comparison module, in the time detecting that brightness reduces to adjust signal, the brightness value before relatively adjusting and the size of luminance threshold;
The second contrast adjusting module, while being greater than described luminance threshold, adjusts current contrast for the brightness value before described adjustment.
Preferably, described the second contrast adjusting module specifically comprises:
The second contrast comparing unit, for in the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is greater than described luminance threshold, judge whether current contrast is less than [contrast threshold-(brightness value-luminance threshold after adjustment)];
The second contrast adjustment unit, when be less than [contrast threshold-(brightness value-luminance threshold after adjustment)] in current contrast, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)]; Be more than or equal to [contrast threshold-(brightness value-luminance threshold after adjustment)] during in current contrast, retain current contrast.
Preferably, described the second contrast adjustment unit specifically also for:
In the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is less than or equal to described luminance threshold, current contrast is adjusted into the contrast displayed value in user's display interface.
The present invention is by the brightness value after adjusting and default luminance threshold comparison, when brightness value after adjusting is greater than luminance threshold, suitably reduce contrast, the bright degree of picture is suitably reduced, avoid picture photo vegetarian refreshments to fall into highlighted saturation region, effectively ensured image sharpness and integrity degree.
Brief description of the drawings
Fig. 1 is the process flow diagram of contrast and brightness interlock method of adjustment in one embodiment of the invention;
Fig. 2 is the flow chart of steps of adjusting contrast when brightness increases in the contrast of one embodiment of the invention and brightness interlock method of adjustment;
Fig. 3 is the process flow diagram of contrast and brightness interlock method of adjustment in another embodiment of the present invention;
Fig. 4 is the flow chart of steps of adjusting contrast when brightness reduces in the contrast of another embodiment of the present invention and brightness interlock method of adjustment;
Fig. 5 is the structural drawing of contrast and brightness interlock adjusting gear in one embodiment of the invention;
Fig. 6 is the structural representation of the first contrast adjusting module in the contrast of one embodiment of the invention and brightness interlock adjusting gear;
Fig. 7 is the structural drawing of contrast and brightness interlock adjusting gear in another embodiment of the present invention;
Fig. 8 is the structural representation of the second contrast adjusting module in the contrast of another embodiment of the present invention and brightness interlock adjusting gear.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, Fig. 1 is the process flow diagram of contrast and brightness interlock method of adjustment in one embodiment of the invention, and the contrast that this embodiment mentions and the brightness method of adjustment that links, comprising:
Step S101, in the time detecting that brightness increases adjustment signal, the brightness value after relatively adjusting and the size of luminance threshold;
Step S102, when the brightness value after adjustment is greater than luminance threshold, adjusts current contrast.
Before employing the present embodiment technical scheme is carried out contrast and brightness interlock adjustment, when user is according to brightness displayed value in user's display interface, by brightness during from a certain nonzero value tone pitch maximal value, to there is highlighted saturation region at brightness curve afterbody, the brightness of pixel that drops on highlighted saturation region in picture is identical, be brightness maximal value, thereby cause the fuzzy loss of the details of highlighted part in picture, picture disply is imperfect.Therefore, the present embodiment adopts default luminance threshold, wherein, default luminance threshold is less than brightness maximal value, and the present embodiment is by brightness value and luminance threshold comparison after adjusting, when the brightness value after adjusting is greater than luminance threshold, suitably reduce contrast, the bright degree of picture is suitably reduced, avoid picture photo vegetarian refreshments to fall into highlighted saturation region, effectively ensured sharpness and the integrity degree of picture detail.
As shown in Figure 2, when brightness increases in the contrast that Fig. 2 is one embodiment of the invention and brightness interlock method of adjustment, adjust the flow chart of steps of contrast.It comprises:
Step S201, judges whether the brightness value after adjusting is greater than luminance threshold; If not, perform step S202; If so, perform step S203;
Step S202, retains current contrast;
Step S203, judges whether current contrast is greater than [contrast threshold-(brightness value-luminance threshold after adjustment)]; If so, perform step S204; If not, perform step S202;
Step S204, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)].
The present embodiment has two kinds of situations in the time that brightness increases, a kind of be brightness value (adjust after brightness value) after increasing still within the scope of luminance threshold, do not need to adjust contrast, retain current contrast; Another kind is that the brightness value after increasing has exceeded luminance threshold, needs suitably to reduce current contrast.The present embodiment belongs to backstage adjustment to the adjustment of current contrast, and the contrast displayed value in user's display interface on foreground still remains unchanged, and can in the unware situation of user, improve picture disply quality like this, effectively improves user and experiences.Simultaneously, the present embodiment is according to the brightness value after default contrast threshold and adjustment and the difference between luminance threshold, for contrast settings reference value, in the time that current contrast is greater than this reference value, reduce current contrast, the bright degree of picture is suitably reduced, avoid picture photo vegetarian refreshments to fall into highlighted saturation region, effectively ensured sharpness and the integrity degree of picture detail.
As shown in Figure 3, Fig. 3 is the process flow diagram of contrast and brightness interlock method of adjustment in another embodiment of the present invention.On the basis of above-described embodiment, also comprise:
Step S103, in the time detecting that brightness reduces to adjust signal, the brightness value before relatively adjusting and the size of luminance threshold;
Step S104, when the brightness value before adjustment is greater than luminance threshold, adjusts current contrast.
In the time that brightness reduces, consider that the brightness value that may occur before adjustment is greater than the situation of luminance threshold, for example, adopted earlier figures 1 or embodiment illustrated in fig. 2 carrying out after contrast adjustment, brightness value is now greater than luminance threshold, in the time that needs reduce this brightness value, contrast is suitably returned to former displayed value, and to guarantee in the time that brightness reduces, the bright degree of picture is unlikely to too dark, further ensure image sharpness, effectively improved image quality.
As shown in Figure 4, when brightness reduces in the contrast that Fig. 4 is another embodiment of the present invention and brightness interlock method of adjustment, adjust the flow chart of steps of contrast.
Step S301, judges whether the brightness value before adjusting is greater than luminance threshold; If not, perform step S302; If so, perform step S303;
Step S302, retains current contrast;
Step S303, judges whether the brightness value after adjusting is greater than luminance threshold; If not, perform step S304; If so, perform step S305;
Step S304, is adjusted into the contrast displayed value in user's display interface by current contrast;
Step S305, judges whether current contrast is less than [contrast threshold-(brightness value-luminance threshold after adjustment)]; If so, perform step S306; If not, perform step S302;
Step S306, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)].
In the present embodiment, there are two kinds of situations for the brightness value being reduced (brightness value before adjusting).A kind of be the brightness value that is reduced originally just within the scope of luminance threshold, there is not the situation of contrast adjustment in it, even after brightness value reduces, still can not exceed the scope of luminance threshold, therefore do not need its contrast to adjust.Another kind of situation is, the brightness value being reduced is outside luminance threshold scope, the contrast that this brightness value is corresponding is so the contrast after adjusting, in the time reducing this brightness value, contrast suitably should be returned to former displayed value, to guarantee in the time that brightness reduces, the bright degree of picture is unlikely to too dark, has further ensured image sharpness.In addition, still there are two kinds of situations for the brightness value after reducing (brightness value after adjusting).A kind of is that brightness value after reducing has been got back within the scope of luminance threshold, contrast adjustment should be recalled to former displayed value.Because the present embodiment all belongs to backstage adjustment to the adjustment of current contrast, the contrast displayed value in user's display interface on foreground remains constant, and therefore the former displayed value of contrast is the contrast displayed value in user's display interface.Another kind be brightness value after reducing still outside luminance threshold scope, need suitably to increase current contrast, make contrast as far as possible near former contrast displayed value.The present embodiment is according to the brightness value after contrast threshold and adjustment and the difference between luminance threshold, for contrast settings reference value, in the time that current contrast is less than this reference value, increase current contrast, to guarantee in the time that brightness reduces, avoid picture photo vegetarian refreshments to fall into highlighted saturation region on the one hand, effectively ensured sharpness and the integrity degree of picture detail; Also the bright degree of having guaranteed on the other hand picture is unlikely to too dark, has further ensured image sharpness, effectively improves image quality.
As shown in Figure 5, Fig. 5 is the structural drawing of contrast and brightness interlock adjusting gear in one embodiment of the invention, and the contrast that this embodiment mentions and the brightness adjusting gear that links, comprising:
The first brightness comparison module 10, in the time detecting that brightness increases adjustment signal, the brightness value after relatively adjusting and the size of luminance threshold;
The first contrast adjusting module 20, while being greater than luminance threshold, adjusts current contrast for the brightness value after adjustment.
Before employing the present embodiment technical scheme is carried out contrast and brightness interlock adjustment, when user is according to brightness displayed value in user's display interface, by brightness during from a certain nonzero value tone pitch maximal value, to there is highlighted saturation region at brightness curve afterbody, the brightness of pixel that drops on highlighted saturation region in picture is identical, be brightness maximal value, thereby cause the fuzzy loss of the details of highlighted part in picture, picture disply is imperfect.Therefore, the present embodiment adopts default luminance threshold, wherein, default luminance threshold is less than brightness maximal value, and the first brightness comparison module 10 is by brightness value and luminance threshold comparison after adjusting, when the brightness value after adjusting is greater than luminance threshold, suitably reduce contrast by the first contrast adjusting module 20, the bright degree of picture is suitably reduced, avoid picture photo vegetarian refreshments to fall into highlighted saturation region, effectively ensured sharpness and the integrity degree of picture detail.
As shown in Figure 6, the structural representation of the first contrast adjusting module in the contrast that Fig. 6 is one embodiment of the invention and brightness interlock adjusting gear.
The first contrast adjusting module 20 specifically comprises:
The first contrast comparing unit 21, while being greater than luminance threshold, judges whether current contrast is greater than [contrast threshold-(brightness value-luminance threshold after adjustment)] for the brightness value after adjusting;
The first contrast adjustment unit 22, when be greater than [contrast threshold-(brightness value-luminance threshold after adjustment)] in current contrast, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)]; Be less than or equal to [contrast threshold-(brightness value-luminance threshold after adjustment)] during in current contrast, retain current contrast.
The comparative result that the present embodiment obtains by the first brightness comparison module 10, in the time that increasing, brightness has two kinds of situations, a kind of be brightness value (adjust after brightness value) after increasing still within the scope of luminance threshold, do not need to adjust contrast, retain current contrast; Another kind is that the brightness value after increasing has exceeded luminance threshold, needs suitably to reduce current contrast by the first contrast adjustment unit 22.The first contrast adjustment unit 22 belongs to backstage adjustment to the adjustment of current contrast, be that contrast displayed value in user's display interface on foreground still remains unchanged, can in the unware situation of user, improve picture disply quality like this, effectively improve user and experience.Simultaneously, the first contrast comparing unit 21 is according to the brightness value after default contrast threshold and adjustment and the difference between luminance threshold, for contrast settings reference value, in the time that current contrast is greater than contrast reference value, reduce current contrast by the first contrast adjustment unit 22, the bright degree of picture is suitably reduced, avoid picture photo vegetarian refreshments to fall into highlighted saturation region, effectively ensured sharpness and the integrity degree of picture detail.
As shown in Figure 7, Fig. 7 is the structural drawing of contrast and brightness interlock adjusting gear in another embodiment of the present invention, and contrast and the brightness adjusting gear that links also comprises:
The second brightness comparison module 30, in the time detecting that brightness reduces to adjust signal, the brightness value before relatively adjusting and the size of luminance threshold;
The second contrast adjusting module 40, while being greater than luminance threshold, adjusts current contrast for the brightness value before adjustment.
In the time that brightness reduces, in the comparative result obtaining by the second brightness comparison module 30, may occur that the brightness value before adjusting is greater than the situation of luminance threshold, for example, earlier figures 1 or embodiment illustrated in fig. 2 carrying out after contrast adjustment are adopted, brightness value is now greater than luminance threshold, in the time that needs reduce this brightness value, contrast is suitably returned to former displayed value by the second contrast adjusting module 40, to guarantee in the time that brightness reduces, the bright degree of picture is unlikely to too dark, has further ensured image sharpness, effectively improves image quality.
As shown in Figure 8, the structural representation of the second contrast adjusting module in the contrast that Fig. 8 is another embodiment of the present invention and brightness interlock adjusting gear.
The second contrast adjusting module 40 specifically comprises:
The second contrast comparing unit 41, while being greater than luminance threshold for the brightness value before adjusting, when the brightness value after adjustment is greater than luminance threshold, judge whether current contrast is less than [contrast threshold-(brightness value-luminance threshold after adjustment)];
The second contrast adjustment unit 42, when be less than [contrast threshold-(brightness value-luminance threshold after adjustment)] in current contrast, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)]; Be more than or equal to [contrast threshold-(brightness value-luminance threshold after adjustment)] during in current contrast, retain current contrast.
The second contrast adjustment unit 42 specifically also for, the brightness value before adjusting while being greater than luminance threshold, when the brightness value after adjustment is less than or equal to luminance threshold, is adjusted into the contrast displayed value in user's display interface by current contrast.
In the present embodiment, in the comparative result obtaining by the second brightness comparison module 30, there are two kinds of situations for the brightness value being reduced (brightness value before adjusting).A kind of be the brightness value that is reduced originally just within the scope of luminance threshold, there is not the situation of contrast adjustment in it, even after brightness value reduces, still can not exceed the scope of luminance threshold, therefore do not need its contrast to adjust.Another kind of situation is, the brightness value being reduced is outside luminance threshold scope, the contrast that this brightness value is corresponding is so the contrast after adjusting, in the time reducing this brightness value, should contrast be suitably returned to former displayed value by the second contrast adjustment unit 42, to guarantee in the time that brightness reduces, the bright degree of picture is unlikely to too dark, has further ensured image sharpness.In addition,, in the comparative result obtaining by the second brightness comparison module 30, still there are two kinds of situations for the brightness value after reducing (brightness value after adjusting).A kind of is that brightness value after reducing has been got back within the scope of luminance threshold, should contrast adjustment be recalled to former displayed value by the second contrast adjustment unit 42.Because the second contrast adjustment unit 42 all belongs to backstage adjustment to the adjustment of current contrast, the contrast displayed value in user's display interface on foreground remains constant, and therefore the former displayed value of contrast is the contrast displayed value in user's display interface.Another kind be brightness value after reducing still outside luminance threshold scope, need suitably to increase current contrast by the second contrast adjustment unit 42, make contrast as far as possible near former contrast displayed value.The second contrast comparing unit 41 of the present embodiment is according to the brightness value after contrast threshold and adjustment and the difference between luminance threshold, for contrast settings reference value, in the time that current contrast is less than this reference value, increase current contrast, to guarantee in the time that brightness reduces, avoid picture photo vegetarian refreshments to fall into highlighted saturation region on the one hand, effectively ensured sharpness and the integrity degree of picture detail; Also the bright degree of having guaranteed on the other hand picture is unlikely to too dark, has further ensured image sharpness, effectively improves image quality.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (6)

1. contrast and a brightness interlock method of adjustment, is characterized in that, comprises step:
In the time detecting that brightness increases adjustment signal, the brightness value after relatively adjusting and the size of luminance threshold;
When brightness value after described adjustment is greater than described luminance threshold, adjust current contrast;
Wherein, when described brightness value after adjustment is greater than described luminance threshold, the step of adjusting current contrast specifically comprises:
In the time that the brightness value after described adjustment is greater than described luminance threshold, judge whether current contrast is greater than [contrast threshold-(brightness value-luminance threshold after adjustment)];
If so, current contrast is adjusted into [contrast threshold-(brightness value-luminance threshold after adjustment)];
If not, retain current contrast.
2. contrast according to claim 1 and brightness interlock method of adjustment, is characterized in that, also comprises:
In the time detecting that brightness reduces to adjust signal, the brightness value before relatively adjusting and the size of luminance threshold;
When brightness value before described adjustment is greater than described luminance threshold, adjust current contrast;
Wherein, when described brightness value before adjustment is greater than described luminance threshold, the step of adjusting current contrast specifically comprises:
In the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is greater than described luminance threshold, judge whether current contrast is less than [contrast threshold-(brightness value-luminance threshold after adjustment)];
If so, current contrast is adjusted into [contrast threshold-(brightness value-luminance threshold after adjustment)];
If not, retain current contrast.
3. contrast according to claim 2 and brightness interlock method of adjustment, is characterized in that, when described brightness value before adjustment is greater than described luminance threshold, the step of adjusting current contrast specifically also comprises:
In the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is less than or equal to described luminance threshold, current contrast is adjusted into the contrast displayed value in user's display interface.
4. contrast and a brightness interlock adjusting gear, is characterized in that, comprising:
The first brightness comparison module, in the time detecting that brightness increases adjustment signal, the brightness value after relatively adjusting and the size of luminance threshold;
The first contrast adjusting module, while being greater than described luminance threshold, adjusts current contrast for the brightness value after described adjustment;
Wherein, described the first contrast adjusting module specifically comprises:
The first contrast comparing unit, in the time that the brightness value after described adjustment is greater than described luminance threshold, judges whether current contrast is greater than [contrast threshold-(brightness value-luminance threshold after adjustment)];
The first contrast adjustment unit, when be greater than [contrast threshold-(brightness value-luminance threshold after adjustment)] in current contrast, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)]; Be less than or equal to [contrast threshold-(brightness value-luminance threshold after adjustment)] during in current contrast, retain current contrast.
5. contrast according to claim 4 and brightness interlock adjusting gear, is characterized in that, also comprises:
The second brightness comparison module, in the time detecting that brightness reduces to adjust signal, the brightness value before relatively adjusting and the size of luminance threshold;
The second contrast adjusting module, while being greater than described luminance threshold, adjusts current contrast for the brightness value before described adjustment;
Wherein, described the second contrast adjusting module specifically comprises:
The second contrast comparing unit, for in the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is greater than described luminance threshold, judge whether current contrast is less than [contrast threshold-(brightness value-luminance threshold after adjustment)];
The second contrast adjustment unit, when be less than [contrast threshold-(brightness value-luminance threshold after adjustment)] in current contrast, is adjusted into current contrast [contrast threshold-(brightness value-luminance threshold after adjustment)]; Be more than or equal to [contrast threshold-(brightness value-luminance threshold after adjustment)] during in current contrast, retain current contrast.
6. contrast according to claim 5 and brightness interlock adjusting gear, is characterized in that, described the second contrast adjustment unit specifically also for:
In the time that the brightness value before described adjustment is greater than described luminance threshold, when the brightness value after described adjustment is less than or equal to described luminance threshold, current contrast is adjusted into the contrast displayed value in user's display interface.
CN201210118184.2A 2012-04-20 2012-04-20 Contrast and brightness linkage adjustment method and device Active CN102663985B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210118184.2A CN102663985B (en) 2012-04-20 2012-04-20 Contrast and brightness linkage adjustment method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210118184.2A CN102663985B (en) 2012-04-20 2012-04-20 Contrast and brightness linkage adjustment method and device

Publications (2)

Publication Number Publication Date
CN102663985A CN102663985A (en) 2012-09-12
CN102663985B true CN102663985B (en) 2014-10-01

Family

ID=46773453

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210118184.2A Active CN102663985B (en) 2012-04-20 2012-04-20 Contrast and brightness linkage adjustment method and device

Country Status (1)

Country Link
CN (1) CN102663985B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103077696B (en) * 2013-01-15 2015-08-12 Opera软件股份公司 For regulating method and apparatus and the display system of brightness of display screen
CN105139814B (en) * 2015-06-05 2017-10-17 深圳创维-Rgb电子有限公司 Liquid crystal display and its display methods
CN107016978B (en) * 2017-04-25 2018-11-20 腾讯科技(深圳)有限公司 A kind of showing interface technology and terminal device
CN108984140B (en) * 2018-06-28 2021-01-15 联想(北京)有限公司 Display control method and system
CN110876180B (en) * 2018-08-31 2023-08-29 Oppo广东移动通信有限公司 Power consumption processing method and device, electronic equipment and computer readable medium
CN113674718B (en) * 2021-08-10 2022-10-18 北京小米移动软件有限公司 Display brightness adjusting method, device and storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1909624A (en) * 2005-08-01 2007-02-07 乐金电子(沈阳)有限公司 Image display device capable of adjusting contrast and brightness and adjusting method therefor
CN100461841C (en) * 2006-07-19 2009-02-11 南京Lg新港显示有限公司 Device for automatically adjusting television receiver video contrast and method thereof
CN100479494C (en) * 2006-03-08 2009-04-15 深圳Tcl新技术有限公司 Adjusting method for the image quality
CN101710955A (en) * 2009-11-24 2010-05-19 北京中星微电子有限公司 Method and equipment for adjusting brightness and contrast

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1909624A (en) * 2005-08-01 2007-02-07 乐金电子(沈阳)有限公司 Image display device capable of adjusting contrast and brightness and adjusting method therefor
CN100479494C (en) * 2006-03-08 2009-04-15 深圳Tcl新技术有限公司 Adjusting method for the image quality
CN100461841C (en) * 2006-07-19 2009-02-11 南京Lg新港显示有限公司 Device for automatically adjusting television receiver video contrast and method thereof
CN101710955A (en) * 2009-11-24 2010-05-19 北京中星微电子有限公司 Method and equipment for adjusting brightness and contrast

Also Published As

Publication number Publication date
CN102663985A (en) 2012-09-12

Similar Documents

Publication Publication Date Title
CN102663985B (en) Contrast and brightness linkage adjustment method and device
EP3454564B1 (en) Method for achieving television theater mode, device, equipment and storage medium
US9142032B2 (en) Method and apparatus for implementing motion detection
CN103325355B (en) A kind of method of image content-based dynamic adjustments backlight illumination
EP3379822B1 (en) Video enhancement method, terminal, and nonvolatile computer readable storage medium
US20080180373A1 (en) Image display device, image display method, image display program, recording medium containing image display program, and electronic apparatus
CN103474036B (en) Display brightness control method, system
CN102111640B (en) Effective image area detection method and system
JP5335706B2 (en) Image display device
CN102402970B (en) Method and device for adjusting contrast of display screen
CN103390395A (en) Method and electronic equipment for adjusting brightness of display
CN110223658B (en) Display brightness control method, device and equipment and display device
CN103763537A (en) Method and device for dynamically regulating display image quality
US8537102B2 (en) Backlight control apparatus and control method thereof
EP3454565B1 (en) Backlight self-adaptive regulation method and apparatus
CN111128082B (en) Backlight adjusting method, display and storage medium
JP4660617B2 (en) Video processing apparatus and video processing method
CN104581132A (en) Detection system and detection method
WO2019184447A1 (en) Backlight control method, device, and computer readable storage medium
US20120008050A1 (en) Video processing apparatus and video processing method
CN105635789A (en) Video image OSD brightness reducing method and device
CN102055924B (en) Method for adjusting proportion mode and television using same
CN113271422A (en) Brightness adjusting method and device, television and computer readable storage medium
JP2012173576A (en) Display controller and display control method
CN100418351C (en) Method for reducing brightness variation during channel change of TV set

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant