CN107665698A - Ambient light intensity compensation method and device - Google Patents
Ambient light intensity compensation method and device Download PDFInfo
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- CN107665698A CN107665698A CN201711116646.6A CN201711116646A CN107665698A CN 107665698 A CN107665698 A CN 107665698A CN 201711116646 A CN201711116646 A CN 201711116646A CN 107665698 A CN107665698 A CN 107665698A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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Abstract
The embodiment of the invention discloses a kind of compensation of ambient light intensity and device, applied to mobile terminal, this method includes：When the display screen of the mobile terminal is in dispaly state, the picture that predeterminable area is currently shown on the display screen is determined, wherein, the predeterminable area is region corresponding with setting ambient light sensor position on the mobile terminal；The display parameters of the picture currently shown according to the predeterminable area, the ambient light intensity currently gathered to the ambient light sensor compensate, wherein, the display parameters comprise at least：Picture colour, Presentation Time Stamp and display brightness value.The present invention, the time synchronized for the ambient light intensity that the offset that the display parameters of the picture shown according to predeterminable area calculate detects with ambient light sensor can be realized, the compensation error brought due to time irreversibility is avoided, and make it that the ambient light intensity accuracy after compensation is higher.
Description
Technical field
The present invention relates to technical field of light detection, more particularly to a kind of ambient light intensity compensation method and device.
Background technology
In order that human eye preferably observes the screen content of mobile terminal when light changes, it is provided with mobile terminal
Ambient light sensor, for detecting the intensity of the external environmental light residing for mobile terminal, when ambient light sensor detects environment
When the brightness of light changes, mobile terminal can adjust the brightness of display screen according to the testing result of ambient light sensor, to protect
Witness's eye preferably observes display screen.
Ambient light sensor is typically mounted at the front of mobile terminal, and still, so turning into mobile terminal, screen is set comprehensively
One big obstacle of meter.In order to solve this obstacle, a kind of feasible method is then that ambient light sensor 11 is arranged on into movement eventually
The lower section of display screen 12 is held, i.e. ambient light sensor 11 is arranged between the display screen 12 and mainboard 13 of mobile terminal, such as Fig. 1
(a) and shown in Fig. 1 (b)., can be by the self-luminous of display screen but such ambient light sensor is when detecting ambient light intensity
Influence so that the detection of ambient light is inaccurate.
In the prior art, it is generally based on the environmental light intensity that the content that display screen is currently shown gathers to ambient light sensor
Degree is modified, and is eliminated with this due to influence of the interference volume to ambient light intensity caused by display screen self-luminous.But due to aobvious
When display screen is in dispaly state, the content that display screen is shown constantly is changing, therefore, the interference as caused by display screen self-luminous
Amount is also constantly changing.Based on the ambient light intensity that ambient light sensor detects with being calculated based on display screen display content
The offset gone out needs synchronization, otherwise with display screen self-luminous caused by interference volume abatement after ambient light intensity be inaccurate.
But method of the prior art, when eliminating the interference volume as caused by display screen self-luminous, can not ensure to be based on
The time synchronized for the ambient light intensity that the offset that display screen display content calculates detects with ambient light sensor, therefore,
Compensation error can be brought, causes the ambient light intensity after compensation inaccurate.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of ambient light intensity compensation method and device, to solve in the prior art
Due to the ambient light intensity time irreversibility that the compensation that is calculated based on display screen display content is detected with ambient light detectors,
Compensation error can be brought, so as to cause compensation after ambient light intensity inaccuracy the problem of.
In order to solve the above technical problems, what the embodiment of the present invention was realized in：
In a first aspect, the embodiments of the invention provide a kind of ambient light intensity compensation method, this method includes：
When the display screen of the mobile terminal is in dispaly state, determine that predeterminable area is currently shown on the display screen
Picture, wherein, the predeterminable area is corresponding with setting ambient light sensor position on the mobile terminal
Region；
The display parameters of the picture currently shown according to the predeterminable area, the ambient light sensor is currently gathered
Ambient light intensity compensates, wherein, the display parameters comprise at least：Picture colour, Presentation Time Stamp and display brightness value.
Second aspect, the embodiment of the present invention additionally provide a kind of ambient light intensity compensation device, and the device includes：
Determining module, it is pre- on the display screen for when the display screen of the mobile terminal is in dispaly state, determining
If the picture that region is currently shown, wherein, the predeterminable area is with setting ambient light sensor on the mobile terminal
Region corresponding to position；
Compensating module, for the display parameters of the picture currently shown according to the predeterminable area, the ambient light is passed
The ambient light intensity that sensor currently gathers compensates, wherein, the display parameters comprise at least：Picture colour, display time
Stamp and display brightness value.
The third aspect, the embodiment of the present invention additionally provide a kind of mobile terminal, including memory, processor and are stored in institute
The computer program that can be run on memory and on the processor is stated, when the computer program is by the computing device
The step of realizing the ambient light intensity compensation method described in above-mentioned first aspect.
Fourth aspect, the embodiment of the present invention additionally provide a kind of computer-readable recording medium, described computer-readable to deposit
Computer program is stored with storage media, the computer program realizes environment described in above-mentioned first aspect when being executed by processor
The step of luminous intensity compensation method.
In embodiments of the present invention, by determining predeterminable area is currently shown on display screen picture, wherein, predeterminable area
For with setting ambient light sensor position corresponding region on mobile terminals, and currently shown according to the predeterminable area
The display parameters of picture, the ambient light intensity of the current collection of ambient light sensor is compensated, can be realized according to preset areas
The time synchronized for the ambient light intensity that the compensation that the display parameters for the picture that domain is shown calculate detects with ambient light sensor,
The compensation error brought due to time irreversibility is avoided, and make it that the ambient light intensity accuracy after compensation is higher.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 (a) is the front view for the mobile terminal that ambient light sensor is set between display screen and mainboard.
Fig. 1 (b) is the side view for the mobile terminal that ambient light sensor is set between display screen and mainboard.
Fig. 2 is the method flow diagram of one embodiment of the present of invention ambient light intensity compensation method.
Fig. 3 is the schematic diagram of the predeterminable area in one embodiment of the present of invention ambient light intensity compensation method.
Fig. 4 is that the connection of processor and drive module in one embodiment of the present of invention ambient light intensity compensation method is shown
It is intended to.
Fig. 5 is in one embodiment of the present of invention ambient light intensity compensation method, determines what predeterminable area was currently shown
The schematic flow sheet of picture.
Fig. 6 is the schematic diagram of frame synchronizing signal and row scanning synchronizing signal in one embodiment of the present of invention.
Fig. 7 is the second method flow chart of one embodiment of the present of invention ambient light intensity compensation method.
Fig. 8 is the structural representation of one embodiment of the present of invention ambient light intensity compensation device.
Fig. 9 is the structural representation of mobile terminal in one embodiment of the present of invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
The embodiments of the invention provide a kind of ambient light intensity compensation method, this method is applied to mobile terminal, this method
For the ring when the ambient light sensor of mobile terminal is arranged between display screen and mainboard, collected to ambient light sensor
Border luminous intensity is handled, to eliminate interference volume caused by display screen self-luminous, also, method provided in an embodiment of the present invention,
It can ensure according to the offset calculated on display screen with the display picture in the corresponding region of ambient light sensor position
With the time synchronized of the ambient light intensity of ambient light sensor collection, so so that ambient light intensity accuracy after compensation compared with
It is high.Wherein, the mobile terminal can be mobile phone, tablet personal computer, computer etc..
Fig. 2 is a kind of method flow diagram of ambient light intensity compensation method provided in an embodiment of the present invention, shown in Fig. 2
In method, including at least following steps：
S102, when the display screen of mobile terminal is in dispaly state, determine that predeterminable area on display screen is currently shown
Picture, wherein, predeterminable area is region corresponding with setting ambient light sensor position on mobile terminals.
Wherein, above-mentioned display screen is in dispaly state, and generally referred to as display screen is lit.
In embodiments of the present invention, ambient light sensor is arranged on the lower section of display screen, i.e. ambient light sensor is arranged on
Between the display screen and mainboard of mobile terminal, and above-mentioned predeterminable area then refer to it is in place with ambient light sensor institute on display screen
The region faced is put, as shown in figure 3, such as a kind of 3 particular location schematic diagrames for showing above-mentioned predeterminable area.
When display screen is in dispaly state, showing the picture of screen display may constantly change, and on display screen
When showing different pictures, the self-luminous of display screen is different to the interference volume of ambient light intensity, therefore, is needed to eliminate interference volume
The offset wanted also differs, because the picture on display screen scans synchronizing signal scanning display screen, institute when refreshing, it is necessary to go
Using picture refreshing as a progressive formation, in order to ensure offset and the time synchronized of the ambient light of ambient light sensor collection,
In embodiments of the present invention, it is thus necessary to determine that the picture that predeterminable area is currently shown on display screen, specific determination process include as follows
Step (1) and (2)：
Step (1), receive frame synchronizing signal and row scanning synchronizing signal that the drive module of display screen is sent；
Step (2), according to frame synchronizing signal and row scanning synchronizing signal, determine the picture that above-mentioned predeterminable area is currently shown
Face.
The executive agent of method provided in an embodiment of the present invention is mobile terminal, specifically, can be mounted in mobile whole
Processor on the mainboard at end.A kind of connection diagram in the embodiment of the present invention between processor and display screen as shown in figure 4,
Specifically, processor connects with the drive module of display screen.
Frame synchronizing signal and row scanning synchronizing signal for display screen drive module existing signal in itself, in order that must locate
Reason device gets the frame synchronizing signal and row scanning synchronizing signal of drive module, and frame synchronization letter is drawn from the drive module of display screen
Number line and row scanning synchronous signal line, and connected by the mode of flexible PCB (FlexiblePrinted Circuit, FPC)
It is connected on the processor of mainboard.And processor can get the frame synchronizing signal of drive module by frame synchronizing signal line, lead to
Space scanning synchronizing signal can get the row scanning synchronizing signal of drive module.
In embodiments of the present invention, used frame synchronizing signal and the drive module that row scanning synchronizing signal is display screen
Itself existing signal, it is only necessary to directly use, it is therefore not necessary to additionally increase cost；In addition, the drive module of display screen is only
Need to export frame synchronizing signal and row scanning synchronizing signal, do not interfere with the normal function of drive module.
In embodiments of the present invention, can determine to show according to the frame synchronizing signal of drive module and row scanning synchronizing signal
The picture that predeterminable area is currently shown in display screen, i.e., display screen area corresponding at ambient light sensor position are currently shown
Picture.Wherein, as shown in figure 5, according to frame synchronizing signal and row scanning synchronizing signal in above-mentioned steps (2), preset areas is determined
The picture that domain is currently shown, including at least following steps：
S202, the frame number for the picture that display screen currently shows is determined according to frame synchronizing signal；
S204, the first number of lines of pixels of the display screen of Current Scan is determined according to row scanning synchronizing signal；
S206, the lower edge pair of the frame number of the picture currently shown according to display screen, the first number of lines of pixels and predeterminable area
The second number of lines of pixels answered, determine the picture that predeterminable area is currently shown.
Wherein, after ambient light sensor installation on mobile terminals, the position of ambient light sensor is fixed,
After ambient light sensor is installed on mobile terminals, determine that the lower edge of the predeterminable area on display screen is located at display screen
The first row pixel, the number of lines of pixels is designated as the second number of lines of pixels.
In embodiments of the present invention, display screen can be got by frame synchronizing signal first and is currently at which frame is drawn
Face, for example, when processor receives first frame synchronizing signal, then illustrate that the display picture of display screen has currently been updated to
One frame；And in each frame, display screen is updated line by line with row scanning synchronizing signal, specifically, can be from display
The lower edge of screen starts, and is updated line by line from bottom to top, when row scanning synchronizing signal scanning reaches a certain pixel of display screen
During row, the pixel column before the pixel column has then completed content update and has entered a later frame picture, that is, the second frame picture, and
Pixel column behind the pixel column does not complete content update also and then rests on former frame picture, that is, the first frame picture.Specifically
As shown in fig. 6, according to aforesaid way, which frame picture is certain one-row pixels for getting display screen that can be will be apparent that be in.
Specifically, in above-mentioned steps S202, the frame number for the picture that display screen currently shows is determined according to frame synchronizing signal,
Specifically include：The number of frame synchronizing signal to receiving counts；And the number of frame synchronizing signal is defined as display screen
The frame number of the picture currently shown.
In embodiments of the present invention, after display screen is lit, the drive module of display screen starts to transmit frame to processor
Synchronizing signal, after processor receives the frame synchronizing signal of drive module transmission, start the number progress to frame synchronizing signal
Count, first frame synchronizing signal is designated as the first frame, the number of the frame synchronizing signal is exactly the picture that display screen is currently shown
Frame number.For example, counting down to m to the number of frame synchronizing signal, then display screen currently shows m frames.
Also, in each frame, the first number of lines of pixels of the display screen of Current Scan is determined according to row scanning synchronizing signal,
Specifically include：The number of row scanning synchronizing signal to receiving counts；And the number that row is scanned to synchronizing signal determines
First number of lines of pixels of the display screen of Current Scan.
For example, when frame synchronizing signal count down to m frames, in m frames, processor is synchronously believed the row scanning received
Number number counted, if, to row scan synchronizing signal number count down to n, then description line scanning synchronizing signal scanning
To the line n pixel of display screen, i.e. the first number of lines of pixels is n.
Specifically, after the number of the number and row scanning synchronizing signal of determining frame synchronizing signal, it is determined that display screen
The picture that is showing of predeterminable area, that is, perform above-mentioned steps S206, above-mentioned steps S206 specifically comprise the following steps (a),
And (c) (b)：
(a), during display screen is by frame updating to the next frame picture that currently shows, by the first number of lines of pixels with
Second number of lines of pixels is compared；
(b), when the first number of lines of pixels is less than the second number of lines of pixels, the picture before display screen is updated is defined as preset areas
The picture that domain is currently shown；
(c), when the first pixel column is more than the second number of lines of pixels, the picture after display screen is updated is defined as predeterminable area
The picture currently shown.
It is assumed that the lower edge of predeterminable area at the row k pixel of display screen, then the second number of lines of pixels is designated as k, if
n<K, then description line scanning synchronizing signal also without scanning arrive display screen row k pixel at, illustrate predeterminable area also in m
Frame, i.e., the picture currently shown display screen are defined as the picture that predeterminable area is currently shown；If n>K, then description line scanning
Synchronizing signal is at the row k pixel of scanned display screen, and in that case, predeterminable area has been completed that renewal enters
Next frame, i.e. m+1 frames.Because n=k time is extremely short, therefore ignore n=k such cases herein.
S104, the display parameters of the picture currently shown according to predeterminable area, to the environment of the current collection of ambient light sensing
Luminous intensity compensates, wherein, display parameters comprise at least：Picture colour, Presentation Time Stamp and display brightness value.
In embodiments of the present invention, after picture that predeterminable area is currently shown is determined, extract R in current picture,
G, the ratio of B pixels, the equivalent colour of picture, such according to the ratio-dependent of R, G, B pixel goes out predeterminable area
Effect colour is then the picture colour of the picture.
Above-mentioned Presentation Time Stamp refers to time when predeterminable area shows the picture, specifically, the timestamp can root
Determined according to frame synchronizing signal and row scanning synchronizing signal.
Above-mentioned display brightness value refers to the display brightness value of display picture, and the display brightness value of display picture is equal to
The display brightness value of display screen.
The ambient light intensity that ambient light sensor currently gathers refers to showing current picture in the predeterminable area of display screen
When, the ambient light intensity of ambient light sensor collection.
In embodiments of the present invention, each ambient light intensity of ambient light sensor collection carries acquisition time stamp,
And the ambient light intensity of collection and acquisition time stamp are stored in database correspondingly.
In embodiments of the present invention, above-mentioned display parameters include picture colour, Presentation Time Stamp and display brightness value, above-mentioned
The frame parameter of the picture currently shown according to predeterminable area, the ambient light intensity of the current collection of ambient light sensor is mended
Repay, including：
The picture colour and display brightness value of the picture currently shown according to predeterminable area, are determined corresponding to ambient light intensity
Luminous intensity offset；According to Presentation Time Stamp, the ambient light intensity that ambient light sensor currently gathers is obtained；Mended according to luminous intensity
The ambient light intensity that value currently gathers above-mentioned ambient light sensor is repaid to compensate.
In embodiments of the present invention, because ambient light sensor is after the collection of ambient light intensity is completed, by the ring of collection
Border luminous intensity and acquisition time stamp are stored in database correspondingly, therefore, after luminous intensity offset is calculated, according to
Presentation Time Stamp of the predeterminable area when showing above-mentioned picture, finds environment corresponding to the Presentation Time Stamp from above-mentioned database
Luminous intensity, the ambient light intensity that the ambient light intensity then gathers for ambient light sensor when predeterminable area shows above-mentioned picture,
Passage time stamp realizes the time synchronized between the picture that predeterminable area shows and the ambient light intensity of collection.
Specifically, luminous intensity offset corresponding to ambient light intensity is determined by following process：It is current according to predeterminable area
Picture colour, display brightness value and the luminous intensity compensation table of the picture of display determine luminous intensity offset；Wherein, luminous intensity compensates
The mapping relations of picture colour, display brightness value and luminous intensity offset are stored with table.
In addition, before ambient light intensity compensation is carried out using method provided in an embodiment of the present invention, or performing
Before above-mentioned steps S104, mapping table between picture colour, display brightness value and luminous intensity offset is pre-established, in the mapping
Table internal memory contains the corresponding relation between each picture colour, display brightness value and luminous intensity offset.
In a kind of embodiment, what is stored in the above-mentioned mapping table pre-established is picture colour, display brightness
Value and corresponding interference volume, due to compensating the influence for seeking to eliminate above-mentioned interference volume and bringing to ambient light intensity, therefore,
The size of luminous intensity offset under same picture colour, display brightness value and interference volume it is equal in magnitude.
Wherein, the display brightness value in the embodiment of the present invention can be display brightness value or the display of display screen
Shield the grade point of display brightness, what above-mentioned brightness value referred specifically to generation is display brightness value, or the grade point of display brightness, user
It can be selected according to practical application scene.
In embodiments of the present invention, can according to the timestamp of luminous intensity offset after calculating luminous intensity offset C every time
To find the ambient light intensity A that corresponding ambient light sensor detects, ambient light intensity A is compensated by calculating A-C,
It is the ambient light intensity of the ambient light intensity after compensating, i.e. reality by A-C.
, can also be by inserting on a display screen in addition to the method for the elimination self luminous influence of display screen of above-mentioned offer
Black frame or black pixel rows sequence eliminate the self luminous interference of display screen, so as to realize the accurate survey of ambient light intensity
Amount, specifically include and black frame or black pixel rows sequence are inserted into the image frame shown by display screen, when display screen exists
Show black frame moment, ambient light sensor through black frame collection ambient light intensity, or when black pixel rows sequence more
The moment of above-mentioned predeterminable area is newly arrived, ambient light sensor gathers ambient light intensity through black pixel rows, through the above way
Reduce the interference for the ambient light intensity that display screen self-luminous gathers to ambient light sensor.
Following that ambient light intensity compensation method provided in an embodiment of the present invention will be introduced with specific embodiment, Fig. 7 shows
Go out the second method flow chart of ambient light intensity compensation method provided in an embodiment of the present invention, in the method shown in Fig. 7,
Including at least following steps：
S302, when the display screen of mobile terminal is in dispaly state, the frame for receiving the drive module transmission of display screen is same
Walk signal and row scanning synchronizing signal；
S304, the number of frame synchronizing signal is counted, the number of frame synchronizing signal is designated as m；
S306, in m frames, the number that synchronizing signal is scanned to row is counted, and row is scanned to the number of synchronizing signal
It is designated as n；
S308, compare the size of the second number of lines of pixels k and n residing for the lower edge of predeterminable area；If n>K, then perform
S310, if n<K, then perform S312；
S310, m+1 frame pictures are defined as the picture that the predeterminable area of display screen is currently displaying；
S312, m frame pictures are defined as the picture that the predeterminable area of display screen is currently displaying；
S314, picture colour, display brightness value and the luminous intensity compensation of the picture being currently displaying according to predeterminable area
Table determines luminous intensity offset；
S316, the Presentation Time Stamp for the picture being currently displaying according to predeterminable area, it is current to obtain ambient light sensor
The ambient light intensity of collection；
S318, the ambient light intensity of the current collection of ambient light sensor is compensated according to luminous intensity offset.
The embodiments of the invention provide a kind of ambient light intensity compensation method, by determining that predeterminable area is current on display screen
The picture of display, wherein, predeterminable area is the ambient light sensor position corresponding region with setting on mobile terminals, and
The display parameters of the picture currently shown according to the predeterminable area, the ambient light intensity of the current collection of ambient light sensor is carried out
Compensation, it can realize that the compensation rate that the display parameters of the picture shown according to predeterminable area calculate detects with ambient light sensor
The time synchronized of the ambient light intensity gone out, the compensation error brought due to time irreversibility is avoided, and caused after compensating
Ambient light intensity accuracy is higher.
Based on thinking same as mentioned above, the embodiment of the present invention additionally provides a kind of ambient light intensity compensation device,
Applied to mobile terminal, Fig. 8 shows the structural representation of ambient light intensity compensation device provided in an embodiment of the present invention, is scheming
In device shown in 8, including：
Determining module 41, for when the display screen of mobile terminal is in dispaly state, determining predeterminable area on display screen
The picture currently shown, wherein, predeterminable area is corresponding with setting ambient light sensor position on mobile terminals
Region；
Compensating module 42, for the display parameters of the picture currently shown according to predeterminable area, ambient light sensor is worked as
The ambient light intensity of preceding collection compensates, wherein, above-mentioned display parameters comprise at least：Picture colour, Presentation Time Stamp and aobvious
Show brightness value.
Optionally it is determined that module 41 includes：
Receiving unit, the frame synchronizing signal and row scanning synchronizing signal that the drive module for receiving display screen is sent；
First determining unit, for according to frame synchronizing signal and row scanning synchronizing signal, determining that predeterminable area is currently shown
Picture.
Alternatively, the first determining unit includes：
First determination subelement, for determining the frame number of picture that display screen currently shows according to frame synchronizing signal；
Second determination subelement, the first pixel column of the display screen for determining Current Scan according to row scanning synchronizing signal
Number；
3rd determination subelement, for the frame number of the picture that is currently shown according to display screen, the first number of lines of pixels and default
Second number of lines of pixels corresponding to the lower edge in region, determine the picture that predeterminable area is currently shown.
Alternatively, the first determination subelement is specifically used for,
The number of frame synchronizing signal to receiving counts；And
The number of frame synchronizing signal is defined as to the frame number for the picture that display screen is currently shown.
Alternatively, the second determination subelement is specifically used for,
The number of row scanning synchronizing signal to receiving counts；And
The number of row scanning synchronizing signal is defined as to the first number of lines of pixels of the display screen of Current Scan.
Alternatively, the 3rd determination subelement is specifically used for,
During display screen is by frame updating to the next frame picture that currently shows, by the first number of lines of pixels and second
Number of lines of pixels is compared；
When the first number of lines of pixels is less than the second number of lines of pixels, the picture before display screen is updated is defined as predeterminable area and worked as
The picture of preceding display；
When the first number of lines of pixels is more than the second number of lines of pixels, the picture after display screen is updated is defined as predeterminable area and worked as
The picture of preceding display.
Alternatively, above-mentioned display parameters include picture colour, Presentation Time Stamp and display brightness value, and compensating module 42 wraps
Include：
Second determining unit, for the picture colour and display brightness value of the picture currently shown according to predeterminable area, really
Determine luminous intensity offset corresponding to ambient light intensity；
Acquiring unit, for according to Presentation Time Stamp, obtaining the ambient light intensity that ambient light sensor currently gathers；
Compensating unit, for being mended according to luminous intensity offset to the ambient light intensity of the current collection of ambient light sensor
Repay.
Alternatively, the second determining unit includes：
4th determination subelement, for the picture colour of the picture that is currently shown according to predeterminable area, display brightness value and
Luminous intensity compensation table determines luminous intensity offset；Wherein, picture colour, display brightness value and light are stored with luminous intensity compensation table
The mapping relations of intensity compensation value.
Ambient light intensity compensation device provided in an embodiment of the present invention, by determining that predeterminable area is currently shown on display screen
Picture, wherein, predeterminable area is and sets ambient light sensor position corresponding region on mobile terminals, and according to
The display parameters for the picture that the predeterminable area is currently shown, the ambient light intensity of the current collection of ambient light sensor is mended
Repay, can realize that the offset that the display parameters of the picture shown according to predeterminable area calculate detects with ambient light sensor
Ambient light intensity time synchronized, avoid the compensation error brought due to time irreversibility, and cause the ring after compensation
Border luminous intensity accuracy is higher.
Fig. 9 is a kind of hardware architecture diagram of mobile terminal of each embodiment of the present invention.Mobile terminal shown in Fig. 9
500 include but is not limited to：Radio frequency unit 501, mixed-media network modules mixed-media 502, audio output unit 503, input block 504, sensor
505th, display unit 506, user input unit 507, interface unit 508, memory 509, processor 510 and power supply 511 etc.
Part.It will be understood by those skilled in the art that the mobile terminal structure shown in Fig. 9 does not form the restriction to mobile terminal,
Mobile terminal can be included than illustrating more or less parts, either combine some parts or different parts arrangement.
In the embodiment of the present invention, mobile terminal includes but is not limited to mobile phone, tablet personal computer, notebook computer, palm PC, vehicle-mounted end
End, wearable device and pedometer etc..
In embodiments of the present invention, the internal memory of memory 509 contains computer program, and the computer program is by processor 510
During execution, following steps can be realized：
When the display screen of mobile terminal is in dispaly state, the picture that predeterminable area is currently shown on display screen is determined,
Wherein, predeterminable area is region corresponding with setting ambient light sensor position on mobile terminals；
The display parameters of the picture currently shown according to predeterminable area, to the environmental light intensity of the current collection of ambient light sensor
Degree compensates, wherein, above-mentioned display parameters comprise at least：Picture colour, Presentation Time Stamp and display brightness value.
Alternatively, when computer program is performed by processor 510, the picture that predeterminable area is currently shown on display screen is determined
Face, including：
Receive frame synchronizing signal and row scanning synchronizing signal that the drive module of display screen is sent；
According to frame synchronizing signal and row scanning synchronizing signal, the picture that predeterminable area is currently shown is determined.
Alternatively, when computer program is performed by processor 510, synchronizing signal is scanned according to frame synchronizing signal and row, really
Determine the picture that predeterminable area is currently shown, including：
The frame number for the picture that display screen currently shows is determined according to frame synchronizing signal；
The first number of lines of pixels of the display screen of Current Scan is determined according to row scanning synchronizing signal；
Corresponding to the lower edge of the frame number of the picture currently shown according to display screen, the first number of lines of pixels and predeterminable area
Two number of lines of pixels, determine the picture that predeterminable area is currently shown.
Alternatively, when computer program is performed by processor 510, determine what display screen was currently shown according to frame synchronizing signal
The frame number of picture, including：
The number of frame synchronizing signal to receiving counts；And
The number of frame synchronizing signal is defined as to the frame number for the picture that display screen is currently shown.
Alternatively, when computer program is performed by processor 510, the synchronous letter of row scanning is determined according to row scanning synchronizing signal
First number of lines of pixels of number display screen scanned, including：
The number of row scanning synchronizing signal to receiving counts；And
The number of row scanning synchronizing signal is defined as to the first pixel of the display screen that row scanning synchronizing signal is scanning
Line number.
Alternatively, when computer program is performed by processor 510, the frame number of the picture currently shown according to display screen,
Second number of lines of pixels corresponding to the lower edge of one number of lines of pixels and predeterminable area, determines the picture that predeterminable area is currently shown, bag
Include：
During display screen is by frame updating to the next frame picture that currently shows, by the first number of lines of pixels and second
Number of lines of pixels is compared；
When the first number of lines of pixels is less than the second number of lines of pixels, the picture before display screen is updated is defined as predeterminable area and worked as
The picture of preceding display；
When the first number of lines of pixels is more than the second number of lines of pixels, the picture after display screen is updated, which is defined as predeterminable area, to be treated
The picture of display.
Alternatively, when computer program is performed by processor 510, above-mentioned display parameters include picture colour, display time
Stamp and display brightness value；Accordingly, the display parameters of the picture currently shown according to predeterminable area, it is current to ambient light sensor
The ambient light intensity of collection compensates, including：
The picture colour and display brightness value of the picture currently shown according to predeterminable area, are determined corresponding to ambient light intensity
Luminous intensity offset；
According to Presentation Time Stamp, the ambient light intensity that ambient light sensor currently gathers is obtained；
The ambient light intensity of the current collection of ambient light sensor is compensated according to luminous intensity offset.
Alternatively, when computer program is performed by processor 510, the picture color of the picture currently shown according to predeterminable area
Value and display brightness value, determine luminous intensity offset corresponding to ambient light intensity, including：
Picture colour, display brightness value and the luminous intensity compensation table of the picture currently shown according to predeterminable area determine light intensity
Spend offset；Wherein, the mapping that picture colour, display brightness value and luminous intensity offset are stored with luminous intensity compensation table is closed
System.
In mobile terminal provided in an embodiment of the present invention, by determining predeterminable area is currently shown on display screen picture,
Wherein, predeterminable area is to be preset with setting ambient light sensor position corresponding region on mobile terminals, and according to this
The display parameters for the picture that region is currently shown, the ambient light intensity of the current collection of ambient light sensor is compensated, can
Realize the environment that the offset that the display parameters of the picture shown according to predeterminable area calculate detects with ambient light sensor
The time synchronized of luminous intensity, the compensation error brought due to time irreversibility is avoided, and cause the environmental light intensity after compensation
It is higher to spend accuracy.
It should be understood that in the embodiment of the present invention, radio frequency unit 501 can be used for receiving and sending messages or communication process in, signal
Reception and transmission, specifically, by from base station downlink data receive after, handled to processor 510；In addition, will be up
Data are sent to base station.Generally, radio frequency unit 501 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 501 can also by wireless communication system and network and other set
Standby communication.
Mobile terminal has provided the user wireless broadband internet by mixed-media network modules mixed-media 502 and accessed, and such as helps user to receive
Send e-mails, browse webpage and access streaming video etc..
Audio output unit 503 can be receiving by radio frequency unit 501 or mixed-media network modules mixed-media 502 or in memory 509
It is sound that the voice data of storage, which is converted into audio signal and exported,.Moreover, audio output unit 503 can also be provided and moved
The audio output for the specific function correlation that dynamic terminal 500 performs is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 503 includes loudspeaker, buzzer and receiver etc..
Input block 504 is used to receive audio or video signal.Input block 504 can include graphics processor
(Graphics Processing Unit, GPU) 9041 and microphone 5042, graphics processor 5041 is in video acquisition mode
Or the static images or the view data of video obtained in image capture mode by image capture apparatus (such as camera) are carried out
Reason.Picture frame after processing may be displayed on display unit 506.Picture frame after the processing of graphics processor 5041 can be deposited
Storage is transmitted in memory 509 (or other storage mediums) or via radio frequency unit 501 or mixed-media network modules mixed-media 502.Mike
Wind 5042 can receive sound, and can be voice data by such acoustic processing.Voice data after processing can be
The form output of mobile communication base station can be sent to via radio frequency unit 501 by being converted in the case of telephone calling model.
Mobile terminal 500 also includes at least one sensor 505, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 5061, and proximity transducer can close when mobile terminal 500 is moved in one's ear
Display panel 5061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axles) size of acceleration, size and the direction of gravity are can detect that when static, available for identification mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；Pass
Sensor 505 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared ray sensor etc. are spent, will not be repeated here.
Display unit 506 is used for the information for showing the information inputted by user or being supplied to user.Display unit 506 can wrap
Display panel 5061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configures display panel 5061.
User input unit 507 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is relevant.Specifically, user input unit 507 include contact panel 5071 and
Other input equipments 5072.Contact panel 5071, also referred to as touch-screen, collect touch operation of the user on or near it
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 5071 or in contact panel 5071
Neighbouring operation).Contact panel 5071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 510, receiving area
Manage the order that device 510 is sent and performed.It is furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes contact panel 5071.Except contact panel 5071, user input unit 5707 can also be set including other inputs
Standby 5072.Specifically, other input equipments 5072
P1714721CN-VIVO can include but is not limited to physical keyboard, function key (such as volume control button, switch
Button etc.), trace ball, mouse, action bars, will not be repeated here.
Further, contact panel 5071 can be covered on display panel 5061, when contact panel 5071 is detected at it
On or near touch operation after, send processor 510 to determine the type of touch event, be followed by subsequent processing device 510 according to touch
The type for touching event provides corresponding visual output on display panel 5061.Although in fig.9, contact panel 5071 and display
Panel 5061 is the part independent as two to realize the input of mobile terminal and output function, but in some embodiments
In, can be integrated by contact panel 5071 and display panel 5061 and realize input and the output function of mobile terminal, it is specific this
Place does not limit.
Interface unit 508 is the interface that external device (ED) is connected with mobile terminal 500.For example, external device (ED) can include
Line or wireless head-band earphone port, external power source (or battery charger) port, wired or wireless FPDP, storage card end
Mouth, port, audio input/output (I/O) port, video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 508 can be used for receive the input (for example, data message, electric power etc.) from external device (ED) and
The input received is transferred to the one or more elements shielded in mobile terminal 500 or can be used in mobile terminal 500
Data are transmitted between external device (ED).
Memory 509 can be used for storage software program and various data.Memory 509 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 509 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 510 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
Individual part, by running or performing the software program and/or module that are stored in memory 509, and call and be stored in storage
Data in device 509, the various functions and processing data of mobile terminal are performed, so as to carry out integral monitoring to mobile terminal.Place
Reason device 510 may include one or more processing units；Preferably, processor 510 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 510.
Mobile terminal 500 can also include the power supply 511 (such as battery) to all parts power supply, it is preferred that power supply 511
Can be logically contiguous by power-supply management system and processor 510, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
In addition, mobile terminal 500 includes some unshowned functional modules, will not be repeated here.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 510, memory 509, is stored in
On memory 509 and the computer program that can be run on the processor 510, the computer program are performed by processor 510
Each process of the above-mentioned ambient light intensity compensation method embodiments of Shi Shixian, and identical technique effect can be reached, to avoid weight
It is multiple, repeat no more here.
Further, the embodiment of the present invention also provides a kind of computer-readable recording medium, computer-readable recording medium
On be stored with computer program, the computer program realizes above-mentioned ambient light intensity compensation method embodiment when being executed by processor
Each process, and identical technique effect can be reached, to avoid repeating, repeated no more here.Wherein, described computer can
Storage medium is read, such as read-only storage (Read-OnlyMemory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic disc or CD etc..
It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Comprising so that process, method, commodity or equipment including a series of elements not only include those key elements, but also wrapping
Include the other element being not expressly set out, or also include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that wanted including described
Other identical element also be present in the process of element, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, system or computer program product.
Therefore, the present invention can be using the embodiment in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Form.Deposited moreover, the present invention can use to can use in one or more computers for wherein including computer usable program code
The shape for the computer program product that storage media is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention.For those skilled in the art
For, the present invention can have various modifications and variations.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included within scope of the presently claimed invention.
Claims (18)
- A kind of 1. ambient light intensity compensation method, applied to mobile terminal, it is characterised in that methods described includes：When the display screen of the mobile terminal is in dispaly state, the picture that predeterminable area is currently shown on the display screen is determined Face, wherein, the predeterminable area is region corresponding with setting ambient light sensor position on the mobile terminal；The display parameters of the picture currently shown according to the predeterminable area, the environment currently gathered to the ambient light sensor Luminous intensity compensates, wherein, the display parameters comprise at least：Picture colour, Presentation Time Stamp and display brightness value.
- 2. according to the method for claim 1, it is characterised in that described to determine that predeterminable area is currently shown on the display screen Picture, including：Receive frame synchronizing signal and row scanning synchronizing signal that the drive module of the display screen is sent；According to the frame synchronizing signal and row scanning synchronizing signal, the picture that the predeterminable area is currently shown is determined.
- 3. according to the method for claim 2, it is characterised in that described to be scanned together according to the frame synchronizing signal and the row Signal is walked, determines the picture that the predeterminable area is currently shown, including：The frame number for the picture that the display screen currently shows is determined according to the frame synchronizing signal；The first number of lines of pixels of the display screen of Current Scan is determined according to row scanning synchronizing signal；The frame number of the picture currently shown according to the display screen, first number of lines of pixels and the predeterminable area it is following Second number of lines of pixels corresponding to edge, determine the picture that the predeterminable area is currently shown.
- 4. according to the method for claim 3, it is characterised in that described that the display screen is determined according to the frame synchronizing signal The frame number of the picture currently shown, including：The number of the frame synchronizing signal to receiving counts；AndThe number of the frame synchronizing signal is defined as to the frame number for the picture that the display screen is currently shown.
- 5. according to the method for claim 3, it is characterised in that described to determine currently to sweep according to row scanning synchronizing signal First number of lines of pixels of the display screen retouched, including：The number of row scanning synchronizing signal to receiving counts；AndThe number of row scanning synchronizing signal is defined as to the first number of lines of pixels of the display screen of Current Scan.
- 6. according to the method for claim 3, it is characterised in that the frame of the picture currently shown according to the display screen Second number of lines of pixels corresponding to the lower edge of several, described first number of lines of pixels and the predeterminable area, determines the preset areas The picture that domain is currently shown, including：During the display screen is by frame updating to the next frame picture that currently shows, by first number of lines of pixels with Second number of lines of pixels is compared；When first number of lines of pixels is less than second number of lines of pixels, the picture before the display screen is updated is defined as institute State the picture that predeterminable area is currently shown；When first number of lines of pixels is more than second number of lines of pixels, the picture after the display screen is updated is defined as institute State the picture that predeterminable area is currently shown.
- 7. according to the method for claim 1, it is characterised in that the display parameters include picture colour, Presentation Time Stamp With display brightness value；The display parameters of the picture currently shown according to the predeterminable area, are currently gathered to the ambient light sensor Ambient light intensity compensates, including：The picture colour and display brightness value of the picture currently shown according to the predeterminable area, determine the ambient light intensity pair The luminous intensity offset answered；According to the Presentation Time Stamp, the ambient light intensity that the ambient light sensor currently gathers is obtained；Compensated according to the ambient light intensity that the luminous intensity offset currently gathers to the ambient light sensor.
- 8. according to the method for claim 7, it is characterised in that the picture currently shown according to the predeterminable area Picture colour and display brightness value, luminous intensity offset corresponding to the ambient light intensity is determined, including：Described in picture colour, display brightness value and the luminous intensity compensation table of the picture currently shown according to the predeterminable area determine Luminous intensity offset；Wherein, picture colour, display brightness value and luminous intensity offset are stored with the luminous intensity compensation table Mapping relations.
- A kind of 9. ambient light intensity compensation device, applied to mobile terminal, it is characterised in that described device includes：Determining module, for when the display screen of the mobile terminal is in dispaly state, determining preset areas on the display screen The picture that domain is currently shown, wherein, the predeterminable area is with setting ambient light sensor place on the mobile terminal The region of position correspondence；Compensating module, for the display parameters of the picture currently shown according to the predeterminable area, to the ambient light sensor The ambient light intensity currently gathered compensates, wherein, the display parameters comprise at least：Picture colour, Presentation Time Stamp and Display brightness value.
- 10. device according to claim 9, it is characterised in that the determining module includes：Receiving unit, the frame synchronizing signal and row scanning synchronizing signal that the drive module for receiving the display screen is sent；First determining unit, for scanning synchronizing signal according to the frame synchronizing signal and the row, determine the predeterminable area The picture currently shown.
- 11. device according to claim 10, it is characterised in that first determining unit includes：First determination subelement, for determining the frame number of picture that the display screen currently shows according to the frame synchronizing signal；Second determination subelement, the first picture of the display screen for determining Current Scan according to row scanning synchronizing signal Plain line number；3rd determination subelement, frame number, first number of lines of pixels for the picture that is currently shown according to the display screen with And the second number of lines of pixels corresponding to the lower edge of the predeterminable area, determine the picture that the predeterminable area is currently shown.
- 12. device according to claim 11, it is characterised in that first determination subelement is specifically used for,The number of the frame synchronizing signal to receiving counts；AndThe number of the frame synchronizing signal is defined as to the frame number for the picture that the display screen is currently shown.
- 13. device according to claim 11, it is characterised in that second determination subelement is specifically used for,The number of row scanning synchronizing signal to receiving counts；AndThe number of row scanning synchronizing signal is defined as to the first number of lines of pixels of the display screen of Current Scan.
- 14. device according to claim 11, it is characterised in that the 3rd determination subelement is specifically used for,During the display screen is by frame updating to the next frame picture that currently shows, by first number of lines of pixels with Second number of lines of pixels is compared；When first number of lines of pixels is less than second number of lines of pixels, the picture before the display screen is updated is defined as institute State the picture that predeterminable area is currently shown；When first number of lines of pixels is more than second number of lines of pixels, the picture picture after the display screen is updated determines The picture currently shown for the predeterminable area.
- 15. device according to claim 9, it is characterised in that the display parameters include picture colour, Presentation Time Stamp With display brightness value；The compensating module includes：Second determining unit, for the picture colour and display brightness value of the picture currently shown according to the predeterminable area, really Luminous intensity offset corresponding to the fixed ambient light intensity；Acquiring unit, for according to the Presentation Time Stamp, obtaining the ambient light intensity that the ambient light sensor currently gathers；Compensating unit, the ambient light intensity for currently being gathered to the ambient light sensor according to the luminous intensity offset enter Row compensation.
- 16. device according to claim 15, it is characterised in that second determining unit includes：4th determination subelement, for the picture colour of the picture that is currently shown according to the predeterminable area, display brightness value and Luminous intensity compensation table determines the luminous intensity offset；Wherein, be stored with the luminous intensity compensation table picture colour, display it is bright The mapping relations of angle value and luminous intensity offset.
- A kind of 17. mobile terminal, it is characterised in that including：Memory, processor and it is stored on the memory and can be in institute The computer program run on processor is stated, the computer program is realized such as claim 1 to 8 during the computing device Any one of ambient light intensity compensation method the step of.
- 18. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, realize that ambient light intensity compensates as any one of claim 1 to 8 when the computer program is executed by processor The step of method.
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