CN106331346A - Contrast adjusting method and device, display screen with device and portable equipment - Google Patents
Contrast adjusting method and device, display screen with device and portable equipment Download PDFInfo
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- CN106331346A CN106331346A CN201610718337.5A CN201610718337A CN106331346A CN 106331346 A CN106331346 A CN 106331346A CN 201610718337 A CN201610718337 A CN 201610718337A CN 106331346 A CN106331346 A CN 106331346A
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- 230000008859 change Effects 0.000 claims abstract description 99
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- 230000006870 function Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 230000035945 sensitivity Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/066—Adjustment of display parameters for control of contrast
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- Theoretical Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention provides a contrast adjusting method and device, and a display screen and portable equipment with the device. The contrast adjusting method comprises the following steps: an ambient brightness obtaining step of obtaining ambient brightness information; determining the ambient brightness change rate, namely calculating the ambient brightness change rate according to the ambient brightness information; and adjusting the contrast of the display screen according to the current ambient brightness under the condition that the ambient brightness change rate is greater than a preset brightness change rate threshold value. The technical scheme provided by the invention can quickly identify the change of the ambient brightness, dynamically adjust the contrast of the screen according to the change rate of the ambient brightness, achieve the effect that the mobile phone screen still keeps high identification degree, effectively avoid the situation that the screen is not clearly seen due to the rapid change of the ambient brightness, and bring very good user experience.
Description
Technical field
The present invention relates to control field, particularly relate to a kind of contrast adjustment method, device and there is the display of this device
Screen and portable equipment.
Background technology
Along with the fast development of mobile electronic device, Portable mobile electronic device such as mobile phone etc. at people's daily life and
Popularity rate in work constantly rises.When using portable equipment out of doors, often cause display because daylight is excessively strong
Screen cannot see, especially when portable equipment from dark environment to high-brightness environment (strong light environment) time, even if display screen display
Showing that brightness reaches the highest, screen also there will be situation about not seeing.For avoid working out of doors middle use portable equipment time occur
Misread, work efficiency is low, by problems such as eyestrain, improve the readability of display screen in portable equipment and become the most urgently to be resolved hurrily
Problem.
A kind of display image contrast is disclosed in the utility model patent that Authorization Notice No. is CN203616973U
Self-checking device.Display contrast can be automatically adjusted by this device, but when intensity of illumination drastically changes, it is impossible to fast
It is automatically adjusted contrast fastly.
Summary of the invention
In view of this, one aspect of the present invention provides a kind of contrast adjustment method, including: ambient brightness obtaining step,
Obtain ambient brightness information；Ambient brightness rate of change determines step, calculates described ambient brightness according to described ambient brightness information
Rate of change；Display screen contrast adjustment step, is more than the situation of predetermined luminance rate of change threshold value at described ambient brightness rate of change
Under, according to display screen contrast described in current environment brightness regulation.
Alternatively, described method also includes presetting described rate of change of brightness threshold value, described rate of change of brightness threshold value bag
Include brightness and strengthen rate of change threshold value and brightness deterioration rate of change threshold value.
Alternatively, also include: at described ambient brightness rate of change less than or equal to described predetermined rate of change of brightness threshold value
In the case of, by ambient brightness changing value compared with predetermined luminance delta threshold value；Big at described ambient brightness changing value
In the case of described predetermined luminance delta threshold value, call contrast and function is set, according to current environment brightness regulation institute
State display screen contrast.
Alternatively, also include: after predetermined very first time threshold value, again sequentially carry out described ambient brightness and obtain
Step, described ambient brightness rate of change determine step, described display screen contrast adjustment step.
Alternatively, also include arranging control knob, be used for starting to perform or stop to perform described contrast adjustment method.
Alternatively, also including initialization step, described initialization step, for performing described contrast adjustment side starting
During method, the display screen contrast first matched according to current environment brightness settings and ambient brightness, then it is bright to perform described environment
Degree obtaining step, described ambient brightness rate of change determine step, described display screen contrast adjustment step.
Alternatively, also include: if in predetermined second time threshold, described ambient brightness rate of change is the most predetermined
Minimum threshold, then stop performing described contrast adjustment method.
Alternatively, described stopping performs described contrast adjustment method, also includes reverting to described display screen contrast
Default value.
Another aspect of the invention provides a kind of contrast control device, including: ambient brightness acquisition module, it is used for obtaining
Ambient brightness information；Computing module, for calculating described ambient brightness rate of change according to described ambient brightness information；Control mould
Block, is configured that in the case of described ambient brightness rate of change is more than predetermined luminance rate of change threshold value, according to current environment brightness
Regulation display screen contrast.
Alternatively, also include arranging module, be used for presetting described rate of change of brightness threshold value, described rate of change of brightness threshold
Value includes that brightness strengthens rate of change threshold value and brightness deterioration rate of change threshold value.
Alternatively, described control module is additionally configured to: at described ambient brightness rate of change less than or equal to described predetermined
In the case of rate of change of brightness threshold value, by ambient brightness changing value compared with predetermined luminance delta threshold value；At described ring
Border brightness flop value, more than in the case of described predetermined luminance delta threshold value, is called contrast and is arranged function, according to currently
Ambient brightness regulates described display screen contrast.
Alternatively, described control module is additionally configured to: after predetermined very first time threshold value, again sequentially carry out institute
State ambient brightness obtaining step, described ambient brightness rate of change determines step, described display screen contrast adjustment step.
Alternatively, also include control knob, be connected with described control module, start to perform or stop to perform for control
Described contrast adjustment method.
Alternatively, also include initialization module, be configured that when starting to perform described contrast adjustment method, first root
The display screen contrast matched according to current environment brightness settings and ambient brightness.
Alternatively, described control module is additionally configured to: if in predetermined second time threshold, described ambient brightness changes
Rate is always below predetermined minimum threshold, then stop performing described contrast adjustment method.
Alternatively, described control module is additionally configured to: when stopping performing described contrast adjustment method, by described display
Screen contrast reverts to default value.
Another aspect of the present invention provides a kind of display screen, has the contrast control device described in any of the above-described item.
Further aspect of the present invention provides a kind of portable equipment, has above-described display screen, described portable equipment bag
Include mobile phone, notebook or panel computer.
The technical scheme of the offer of the present invention, it is possible to quickly environment-identification brightness flop, moves according to ambient brightness rate of change
The contrast of state regulation screen, reaches mobile phone screen and still keeps the effect of high resolution, be prevented effectively from because ambient brightness becomes rapidly
Change and the situation that screen does not sees occurs, bring extraordinary Consumer's Experience.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this
Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the general frame figure of the contrast adjustment method that the present invention provides；
Fig. 2 is the flow chart of a kind of preferred embodiment of the contrast adjustment method that the present invention provides；
Fig. 3 is the flow chart of the another preferred embodiment of the contrast adjustment method that the present invention provides；
Fig. 4 is the flow chart of the further embodiment of the contrast adjustment method that the present invention provides；
Fig. 5 is the overall structure figure of the contrast control device that the present invention provides；
Fig. 6 is the structural representation of a kind of preferred embodiment of the contrast control device that the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described by corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so use
Data can exchange in the appropriate case, in order to embodiments of the invention described herein can with except here diagram or
Order beyond those described is implemented.Additionally, term " includes " and " having " and their any deformation, it is intended that cover
Cover non-exclusive comprising, such as, contain series of steps or the process of unit, method, system, product or equipment are not necessarily limited to
Those steps clearly listed or unit, but can include the most clearly listing or for these processes, method, product
Or intrinsic other step of equipment or unit.
One aspect of the present invention provides a kind of contrast adjustment method.Fig. 1 is the contrast adjustment method that the present invention provides
General frame figure.As it is shown in figure 1, contrast adjustment method of the present invention includes: step 101, ambient brightness obtaining step, obtain
Ambient brightness information；Step 102, ambient brightness rate of change determines step, calculates described environment according to described ambient brightness information
Rate of change of brightness；Step 103, display screen contrast adjustment step, at ambient brightness rate of change more than predetermined luminance rate of change threshold
In the case of value, according to current environment brightness regulation display screen contrast.Step 101, step 102, step 103 order performs.
Generally the display screen of portable set from dark environmental change to high-brightness environment (strong light environment) time, even if mobile phone display brightness
Reaching the highest, mobile phone screen also there will be the situation of not seeing.When ambient brightness strengthens rapidly or weakens rapidly, first pass through ring
Brightness acquisition module in border obtains ambient brightness information, then calculates the variable quantity of ambient brightness within a period of time and time used
Ratio, be described ambient brightness rate of change.According to external environment rate of change of brightness, i.e. according to external environment brightness flop
Speed program regulates Display Contrast, it is possible to ambient brightness change is made reaction rapidly, reaches mobile phone screen and keeps height
The effect of resolution.
According to a kind of embodiment of contrast adjustment method of the present invention, also include presetting described by arranging module
Rate of change of brightness threshold value, described rate of change of brightness threshold value includes that brightness strengthens rate of change threshold value and brightness deterioration rate of change threshold value.
The impression strengthening rapidly and weakening rapidly both scene users due to ambient brightness is different, can set for two kinds of scenes
Two kinds of threshold values, i.e. brightness strengthen rate of change threshold value and brightness deterioration rate of change threshold value, arrange not for different application scenarios
Same sensitivity, thus obtain good Consumer's Experience.According to a kind of embodiment of contrast adjustment method of the present invention, permissible
Offer arranges the page, user oneself set the two threshold value, or allow user go to revise the two threshold according to the hobby of oneself
Value.
Fig. 2 is the flow chart of a kind of preferred embodiment of the contrast adjustment method that the present invention provides.As in figure 2 it is shown,
Step 101 obtains ambient brightness information, and step 102 calculates described ambient brightness rate of change according to described ambient brightness information,
Perform step 202 afterwards, by described ambient brightness rate of change compared with predetermined rate of change of brightness threshold value.Become at ambient brightness
Rate, more than in the case of predetermined luminance rate of change threshold value, performs step 203, calls contrast and arrange function, according to working as front ring
Border brightness regulation display screen contrast.
According to a kind of embodiment of contrast adjustment method of the present invention, also include: after step 202, at described ring
In the case of border rate of change of brightness is less than or equal to predetermined rate of change of brightness threshold value, perform step 204, ambient brightness is changed
Value is compared with predetermined luminance delta threshold value；At described ambient brightness changing value more than described predetermined luminance delta threshold
In the case of value, perform step 203, call contrast and function is set, according to current environment brightness regulation display screen contrast.?
Ambient brightness rate of change is less, in the case of namely ambient brightness change is relatively slow, when ambient brightness changing value reaches certain journey
Degree, when i.e. reaching predetermined luminance delta threshold value, just regulates display screen contrast.According to contrast adjustment method of the present invention
A kind of embodiment, it is provided that arrange the page, is set luminance delta threshold value by user oneself, or allows user according to oneself
Hobby go revise luminance delta threshold value.
According to a kind of embodiment of contrast adjustment method of the present invention, also include: after step 203, through predetermined
Very first time threshold value, come back to step 101, obtain ambient brightness information, then repeat above-mentioned steps, until step
203, regulate display screen contrast according to described ambient brightness information.Very first time threshold value can be set according to specific environment situation,
Very first time threshold value is set to the least, and system is the highest to the sensitivity of ambient brightness reacting condition.According to contrast of the present invention
A kind of embodiment of control method, it is provided that arrange the page, is set very first time threshold value by user oneself, or allows user
Hobby according to oneself goes to revise very first time threshold value.
Fig. 3 is the flow chart of the another preferred embodiment of the contrast adjustment method that the present invention provides.As it is shown on figure 3, this
The contrast adjustment method of invention also includes arranging control knob, is used for starting to perform or stop to perform described contrast adjustment side
Method.According to a kind of embodiment of contrast adjustment method of the present invention, one control knob of inner interpolation can be set in system, supply
User chooses whether to open the function that automatically strengthens of contrast, for example, it is possible to this function be placed on settings-> display and brightness->
Brightness regulation.In figure 3, user performs step 301, clicks on control knob.System response user clicks on the operation of control knob,
Perform step 302, start to perform contrast adjustment method；Or perform step 304, stop performing contrast adjustment method.
As it is shown on figure 3, be additionally included in step 302, when starting to perform described contrast adjustment method, step is first carried out
303, the display screen contrast matched according to current environment brightness settings and ambient brightness.Perform step 101, step the most again
102 and step 103, regulate display screen contrast according to environment high information.In view of opening switch under user is at high light
Time, ambient light, according to not having significant change, at this moment sets and just goes to set once according to ambient brightness when that user opening switch
Contrast, in order to reach good visual experience.
As it is shown on figure 3, be additionally included in step 304, when stopping performing described contrast adjustment method, perform step 305, will
Described display screen contrast reverts to default value.
Fig. 4 is the flow chart of the further embodiment of the contrast adjustment method that the present invention provides.As shown in Figure 4, exist
Step 101, obtains ambient brightness information, and step 102, calculates described ambient brightness rate of change according to described ambient brightness information
Afterwards, step 401 is performed, by ambient brightness rate of change compared with predetermined minimum threshold, if at predetermined second time threshold
In value, described ambient brightness rate of change is always below predetermined minimum threshold, then perform step 304 and step 305, stops performing institute
State contrast adjustment method, described display screen contrast is reverted to default value.When the position of display screen is not moved or long
Time external environment is unchanged and when causing ambient brightness to vary less, closes contrast adjustment service to reduce system burden.
A kind of embodiment according to contrast adjustment method of the present invention, it is provided that arrange the page, when being set second by user oneself
Between threshold value and minimum threshold, or allow user go to revise the second time threshold and minimum threshold according to the hobby of oneself.
As a kind of substitute mode of embodiment illustrated in fig. 4, wherein step 102, calculate according to described ambient brightness information
Described ambient brightness rate of change, can be replaced: calculate described ambient brightness variable quantity according to described ambient brightness information；Accordingly
Ground, step 401, by ambient brightness rate of change with predetermined minimum threshold compared with, can be replaced: by ambient brightness variable quantity and
Predetermined minimum change threshold value compares, if in predetermined second time threshold, described ambient brightness variable quantity is the lowest
In predetermined minimum change threshold value, then perform step 304 and step 305, stop performing described contrast adjustment method, by described
Display screen contrast reverts to default value.
Further, calculating described ambient brightness variable quantity according to described ambient brightness information, ambient brightness variable quantity is big
When a certain threshold value, just go to call contrast method to set up and go to arrange the contrast of screen.
Another aspect of the invention provides a kind of contrast control device.Fig. 5 is the contrast adjustment dress that the present invention provides
The overall structure figure put.As it is shown in figure 5, contrast control device of the present invention includes: ambient brightness acquisition module 510, it is used for obtaining
Take ambient brightness information；Computing module 520, for calculating described ambient brightness rate of change according to described ambient brightness information；Control
Molding block 530, is configured that in the case of ambient brightness rate of change is more than predetermined luminance rate of change threshold value, according to current environment
Brightness regulation display screen contrast.
Fig. 6 is the structural representation of a kind of preferred embodiment of the contrast control device that the present invention provides.Such as Fig. 6 institute
Showing, described contrast control device also includes arranging module 540, is used for presetting described rate of change of brightness threshold value, described bright
Degree rate of change threshold value includes that brightness strengthens rate of change threshold value and brightness deterioration rate of change threshold value.
According to a kind of embodiment of contrast control device of the present invention, described control module 530 is additionally configured to: described
In the case of ambient brightness rate of change is less than or equal to predetermined rate of change of brightness threshold value, by ambient brightness changing value with predetermined
Luminance delta threshold value compares；The situation of described predetermined luminance delta threshold value it is more than at described ambient brightness changing value
Under, call contrast and function is set, according to current environment brightness regulation display screen contrast.
According to a kind of embodiment of contrast control device of the present invention, described control module 530 is additionally configured to: through pre-
After fixed very first time threshold value, again sequentially carry out ambient brightness obtaining step, ambient brightness rate of change determines step, display
Screen contrast adjustment step.
According to a kind of embodiment of contrast control device of the present invention, also include control knob 550, with described control mould
Block 530 connection mutually, starts to perform or stop to perform described contrast adjustment method for control.
According to a kind of embodiment of contrast control device of the present invention, also include initialization module 560, be configured that
When starting to perform described contrast adjustment method, the display screen first matched according to current environment brightness settings and ambient brightness
Contrast.
According to a kind of embodiment of contrast control device of the present invention, described control module 530 is additionally configured to: if
In predetermined second time threshold, described ambient brightness rate of change is always below predetermined minimum threshold, then stop performing described contrast
Degree control method.
According to a kind of embodiment of contrast control device of the present invention, described control module 530 is additionally configured to: stopping
When performing described contrast adjustment method, described display screen contrast is reverted to default value.
Another aspect of the present invention provides a kind of display screen, has the contrast control device described in any of the above-described item.
Further aspect of the present invention provides a kind of portable equipment, has above-described display screen, described portable equipment bag
Include mobile phone, notebook or panel computer.
The technical scheme of the offer of the present invention, it is possible to quickly environment-identification brightness flop, moves according to ambient brightness rate of change
The contrast of state regulation screen, reaches mobile phone screen and still keeps the effect of high resolution, be prevented effectively from because ambient brightness becomes rapidly
Change and the situation that screen does not sees occurs, bring extraordinary Consumer's Experience.
Function described herein can be implemented in hardware, the processor software, firmware or its any combination that perform.
If implemented in the software performed by processor, then function can be stored in computer as one or more instruction or code
Transmitted on readable media or via computer-readable media.Other example and embodiment are wanted in the present invention and appended right
In seeking scope and the spirit of book.For example, owing to the character of software, function described above can use by processor,
The software that hardware, firmware, hardwired or the combination appointing whichever in these perform is implemented.Additionally, each functional unit can be integrated
In a processing unit, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in
In one unit.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be passed through other
Mode realizes.Wherein, device embodiment described above is only schematically, the division of the most described unit, Ke Yiwei
A kind of logic function divides, actual can have when realizing other dividing mode, the most multiple unit or assembly can in conjunction with or
Person is desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed is mutual
Between coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, unit or module or communication link
Connect, can be being electrical or other form.
The described unit illustrated as separating component can be or may not be physically separate, as controlling dress
The parts put can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit
Time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part that in other words prior art contributed or this technical scheme completely or partially can be with the form of software product
Embodying, this computer software product is stored in a storage medium, including some instructions with so that a computer
Equipment (can be for personal computer, server or the network equipment etc.) perform the whole of method described in each embodiment of the present invention or
Part steps.And aforesaid storage medium includes: USB flash disk, read only memory (ROM, Read-Only Memory), random access memory are deposited
Reservoir (RAM, Random Access Memory), portable hard drive, magnetic disc or CD etc. are various can store program code
Medium.
The foregoing is only embodiments of the invention, be not limited to the present invention, for those skilled in the art
For Yuan, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made,
Equivalent, improvement etc., within should be included in scope of the presently claimed invention.
Claims (18)
1. a contrast adjustment method, including:
Ambient brightness obtaining step, obtains ambient brightness information；
Ambient brightness rate of change determines step, calculates described ambient brightness rate of change according to described ambient brightness information；
Display screen contrast adjustment step, in the case of described ambient brightness rate of change is more than predetermined luminance rate of change threshold value,
According to display screen contrast described in current environment brightness regulation.
Method the most according to claim 1, it is characterised in that preset described rate of change of brightness threshold value, described brightness
Rate of change threshold value includes that brightness strengthens rate of change threshold value and brightness deterioration rate of change threshold value.
Method the most according to claim 1 and 2, it is characterised in that also include:
In the case of described ambient brightness rate of change is less than or equal to described predetermined rate of change of brightness threshold value, by ambient brightness
Changing value is compared with predetermined luminance delta threshold value；
In the case of described ambient brightness changing value is more than described predetermined luminance delta threshold value, calls contrast and letter is set
Number, according to display screen contrast described in current environment brightness regulation.
4. according to the method according to any one of claim 1-3, it is characterised in that also include: through the predetermined very first time
After threshold value, again sequentially carry out described ambient brightness obtaining step, described ambient brightness rate of change determines step, described display
Screen contrast adjustment step.
5. according to the method according to any one of claim 1-4, it is characterised in that also include arranging control knob, be used for out
Begin to perform or stop to perform described contrast adjustment method.
Method the most according to claim 5, it is characterised in that also include initialization step, described initialization step, be used for
When starting to perform described contrast adjustment method, the display first matched according to current environment brightness settings and ambient brightness
Screen contrast, then perform described ambient brightness obtaining step, described ambient brightness rate of change determines that step, described display screen contrast
Degree regulating step.
7. according to the method according to any one of claim 1-6, it is characterised in that also include: if in predetermined second time
In threshold value, described ambient brightness rate of change is always below predetermined minimum threshold, then stop performing described contrast adjustment method.
8. according to the method according to any one of claim 5-7, it is characterised in that described stopping performs described contrast adjustment
Method, also includes described display screen contrast is reverted to default value.
9. a contrast control device, including:
Ambient brightness acquisition module, is used for obtaining ambient brightness information；
Computing module, for calculating described ambient brightness rate of change according to described ambient brightness information；
Control module, is configured that in the case of described ambient brightness rate of change is more than predetermined luminance rate of change threshold value, according to working as
Front environment brightness regulation display screen contrast.
Device the most according to claim 9, it is characterised in that also include arranging module, is used for presetting described brightness
Rate of change threshold value, described rate of change of brightness threshold value includes that brightness strengthens rate of change threshold value and brightness deterioration rate of change threshold value.
11. according to the device described in claim 9 or 10, it is characterised in that described control module is additionally configured to:
In the case of described ambient brightness rate of change is less than or equal to described predetermined rate of change of brightness threshold value, by ambient brightness
Changing value is compared with predetermined luminance delta threshold value；
In the case of described ambient brightness changing value is more than described predetermined luminance delta threshold value, calls contrast and letter is set
Number, according to display screen contrast described in current environment brightness regulation.
12. according to the device according to any one of claim 9-11, it is characterised in that described control module is additionally configured to: warp
After crossing predetermined very first time threshold value, again sequentially carry out described ambient brightness obtaining step, described ambient brightness rate of change
Determine step, described display screen contrast adjustment step.
13. according to the device according to any one of claim 9-12, it is characterised in that also include control knob, with described control
Molding block is connected, and starts to perform or stop to perform described contrast adjustment method for control.
14. devices according to claim 13, it is characterised in that also include initialization module, are configured that and are starting execution
During described contrast adjustment method, the display screen contrast first matched according to current environment brightness settings and ambient brightness.
15. according to the device according to any one of claim 9-14, it is characterised in that described control module is additionally configured to:
If in predetermined second time threshold, described ambient brightness rate of change is always below predetermined minimum threshold, then stop holding
The described contrast adjustment method of row.
16. according to the device according to any one of claim 13-15, it is characterised in that described control module is additionally configured to:
When stopping performing described contrast adjustment method, described display screen contrast is reverted to default value.
17. 1 kinds of display screens, have the contrast control device as described in any one of claim 9-16.
18. 1 kinds of portable equipments, have display screen as claimed in claim 17, and described portable equipment includes mobile phone, notebook
Or panel computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610718337.5A CN106331346B (en) | 2016-08-24 | 2016-08-24 | Contrast adjusting method and device, display screen with device and portable equipment |
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| CN201610718337.5A CN106331346B (en) | 2016-08-24 | 2016-08-24 | Contrast adjusting method and device, display screen with device and portable equipment |
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| CN106331346A true CN106331346A (en) | 2017-01-11 |
| CN106331346B CN106331346B (en) | 2019-06-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN106713658A (en) * | 2017-01-20 | 2017-05-24 | 北京小米移动软件有限公司 | Light source adjusting method and apparatus |
| CN106713658B (en) * | 2017-01-20 | 2019-10-11 | 北京小米移动软件有限公司 | Light source adjusting method and device |
| CN112233631A (en) * | 2020-10-28 | 2021-01-15 | 山东超越数控电子股份有限公司 | Device and method for automatically adjusting screen brightness of all-solid-state tablet personal computer |
| CN112233631B (en) * | 2020-10-28 | 2022-05-31 | 超越科技股份有限公司 | Automatic screen brightness adjusting device and method for all-solid tablet personal computer |
| CN112509508A (en) * | 2020-11-28 | 2021-03-16 | 珠海格力电器股份有限公司 | Washing machine panel display brightness adjusting device and brightness adjusting method |
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