CN108830190A - A kind of display equipment and its control method - Google Patents
A kind of display equipment and its control method Download PDFInfo
- Publication number
- CN108830190A CN108830190A CN201810540948.4A CN201810540948A CN108830190A CN 108830190 A CN108830190 A CN 108830190A CN 201810540948 A CN201810540948 A CN 201810540948A CN 108830190 A CN108830190 A CN 108830190A
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- China
- Prior art keywords
- data voltage
- fingerprint identification
- identification area
- grayscale
- actuation signal
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
-
- 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
Abstract
The present invention provides a kind of display equipment and its control method, solve the problems, such as that fingerprint identification area is not easy to identify under shielding in the prior art.The display equipment includes display screen, and display screen includes fingerprint identification area, which includes：The pre-actuation signal of real-time monitoring fingerprint identification area；When monitoring pre-actuation signal, controls fingerprint identification area and shown with the brightness for being greater than present intensity.
Description
Technical field
The present invention relates to display equipment technical fields, and in particular to a kind of with the display that may be implemented to highlight display effect
Equipment and its control method.
Background technique
As display equipment shields the fast development of technology comprehensively, fingerprint identification area is gradually from shielding in external expansion to screen, i.e.,
Fingerprint identification area is expanded into display area from traditional key area, the latter referred to as shields lower fingerprint identification area, in this case,
When needing to carry out fingerprint recognition, user is difficult to be recognized accurately the specific location of fingerprint identification area to carry out fingerprint typing, shadow
Ring user experience.
Summary of the invention
In view of this, the embodiment of the present invention is dedicated to providing the control method and display equipment of a kind of display equipment, with solution
Certainly shield lower fingerprint identification area in the prior art and is not easy identified problem.
One aspect of the present invention provides a kind of control method for showing equipment, which includes display screen, the display
Screen includes fingerprint identification area, and the control method of the display equipment includes：The pre-actuation signal of real-time monitoring fingerprint identification area；Work as prison
When measuring pre-actuation signal, controls fingerprint identification area and shown with the brightness for being greater than present intensity.
In one embodiment, pre-actuation signal includes that the user in the wake up instruction and/or application program of display screen recognizes
Card instruction.
In one embodiment, fingerprint identification area includes to be greater than the fingerprint recognition image that the brightness of present intensity is shown：
Monitor the present image or pre-set image before pre-actuation signal.
In one embodiment, when monitoring pre-actuation signal, fingerprint identification area is controlled to be greater than the bright of present intensity
Degree is shown：Before monitoring pre-actuation signal, by the grayscale value of the image of fingerprint identification area and the first grayscale-prestored
Data voltage mapping table is matched to obtain the first data voltage, and the first data voltage is output to fingerprint identification area and is carried out
Display；It is when monitoring pre-actuation signal, the grayscale value of fingerprint recognition image is corresponding with the second grayscale-data voltage prestored
Relation table is matched to obtain the second data voltage, and the second data voltage is output to fingerprint identification area and is shown, the first number
According to the corresponding brightness=k1* (grayscale value/255) of voltage2.2, the corresponding brightness of the second data voltage=(grayscale value/255 k2*
)2.2, k1<k2.
In one embodiment, the first variable k1 is 200 candelas or 350 candelas, and the second variable k2 is 500 bank morals
It draws.
The present invention also provides a kind of display equipment, including：Display screen, the display screen include fingerprint identification area；Monitoring is single
Member, the pre-actuation signal for real-time monitoring fingerprint identification area；Control chip is connected with display screen, monitoring unit, for when prison
When measuring pre-actuation signal, controls fingerprint identification area and shown with the brightness for being greater than present intensity.
In one embodiment, control chip includes：Memory, for prestoring the first grayscale-data voltage corresponding relationship
Table and the second grayscale-data voltage mapping table, the data voltage in the first grayscale-data voltage mapping table are corresponding
Brightness=k* (grayscale value/255)2.2, the corresponding brightness=k2* of data voltage in the second grayscale-data voltage mapping table
(grayscale value/255)2.2, k1<k2；First controller is connected with memory, fingerprint identification area, for not monitoring pretrigger
When signal, the grayscale value of the image of fingerprint identification area and the first grayscale-data voltage mapping table are matched to obtain
First data voltage is output to fingerprint identification area and shown by one data voltage, and when monitoring pre-actuation signal, will
The grayscale value and the second grayscale-data voltage mapping table of the present image of fingerprint identification area are matched to obtain the second data
Second data voltage is output to fingerprint identification area and shown by voltage.
In one embodiment, memory is also used to prestore pre-set image；First controller is not for monitoring pre- open
When dynamic signal, the grayscale value of the image of fingerprint identification area and the first grayscale-data voltage mapping table are matched to obtain
First data voltage is output to fingerprint identification area and shown by the first data voltage, and by the grayscale value of pre-set image and
Second grayscale-data voltage mapping table is matched to obtain the second data voltage, and the second data voltage is output to fingerprint
Cog region is shown.
In one embodiment, control chip further comprises：In addition to referring in second controller and memory, display screen
Non- fingerprint identification area except line cog region is connected, for by the grayscale value of the image of non-fingerprint identification area and the first grayscale-number
It is matched to obtain the first data voltage according to voltage mapping table, the first data voltage is output to non-fingerprint identification area and is carried out
Display.
Invention further provides a kind of computer readable storage mediums, are stored thereon with computer program, the computer journey
The step of control method of above-mentioned display equipment is realized when sequence is executed by processor.
The display equipment and its control method provided according to the present invention, when the pre-actuation signal for monitoring fingerprint identification area
When, that is, when needing to carry out fingerprint recognition, can make fingerprint identification area brightness improve, convenient for user identify fingerprint identification area come into
Row fingerprint typing, improves user experience.
Detailed description of the invention
Fig. 1 show a kind of flow chart of the control method of display equipment of one embodiment of the invention offer.
Fig. 2 show the gamma correction curve of one embodiment of the invention offer.
Fig. 3 show a kind of structural block diagram of display equipment of one embodiment of the invention offer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Fig. 1 show a kind of flow chart of the control method of display equipment of one embodiment of the invention offer.The display is set
Standby includes display screen, and display screen includes fingerprint identification area, and fingerprint identification area is preferably in the region of fingerprint graph, i.e. fingerprint identification area
All pixels point constitute fingerprint graph, it can be seen from the figure that the control method 100 includes：
Step S110, the pre-actuation signal of real-time monitoring fingerprint identification area.The pre-actuation signal includes the wake-up of display screen
User authentication instruction in signal and/or application program.
In one embodiment, the pre-actuation signal of fingerprint identification area includes the wake-up signal of display screen.The display screen
Wake-up signal refers to the instruction that control display screen is waken up from standby mode, is usually issued by user, such as presses standby/wake-up
Key can make display screen be transformed into low battery from black state and show state.
In one embodiment, the pre-actuation signal of fingerprint identification area includes the user authentication instruction in application program.It should
User authentication instruction in application program is usually automatically generated by application program, such as be can be when wechat is paid and prompted user defeated
The instruction etc. that prompt user inputs login password when entering the instruction of payment cipher or logging in some websites needs user to carry out body
The instruction of part certification.
Step S120, when monitoring the pre-actuation signal of fingerprint identification area, it is current bright to be greater than to control fingerprint identification area
The brightness of degree is shown.
In order to avoid the feelings of non-linear and human eye vision the non-linear caused image fault of display equipment itself
Condition can be corrected the brightness of display equipment before being shown.Specifically, being directed to each grayscale value pair respectively
The brightness answered is corrected, and by taking 255 grayscale as an example, is calculated first with gamma correction formula by grayscale value 255 to be corrected
Brightness value, gamma correction formula here are brightness value=k* (grayscale value/255)2.2, variable k therein is under current environment
The brightness value of 255 grayscale, such as 350 candelas；Then the image to be displayed that grayscale is 255 display screen is sent to show；
Adjustment is output to the data voltage of display screen, until the brightness of display screen is 350 candelas, records data voltage at this time, weight
The multiple above process obtains grayscale-data voltage mapping table to traverse all grayscale values, such as 0-255.
In this way, subsequent can be stored to the grayscale-data voltage mapping table in advance in control chip, when needing to image
When being shown, the grayscale-data voltage mapping table is called, by the grayscale of image to be displayed and the grayscale-data voltage
Mapping table is matched to obtain corresponding data voltage, and obtained data voltage is output to display screen, can be so that aobvious
Display screen shows ideal brightness, that is, shows the brightness shown when equipment works normally.
In one embodiment, step S120 includes：Before monitoring pre-actuation signal, by the image of fingerprint identification area
Grayscale value and grayscale the-the first data voltage mapping table for prestoring matched to obtain the first data voltage, by the first number
It is shown according to voltage output to fingerprint identification area；When monitoring pre-actuation signal, by the grayscale value of fingerprint recognition image and
Grayscale the-the second data voltage mapping table prestored is matched to obtain the second data voltage, and the second data voltage is exported
It is shown to fingerprint identification area, the corresponding brightness value=k1* (grayscale value/255) of the first data voltage2.2, the second data voltage
Corresponding brightness value=k2* (grayscale value/255)2.2, k1<k2.
The corresponding brightness value of first data voltage is the brightness for showing and showing when equipment works normally, the second data voltage
Corresponding brightness value is the brightness for being greater than present intensity.
The image of fingerprint identification area refers to that the image of fingerprint identification area real-time display, fingerprint recognition image refer to fingerprint recognition
To be greater than the image that the brightness of present intensity is shown, fingerprint recognition image can be fingerprint identification area and monitor fingerprint recognition in area
Shown present image, is also possible to pre-set image before the pre-actuation signal in area.
Fig. 2 show the gamma correction curve of 24 bit images of one embodiment of the invention offer.The gamma correction curve is
It is obtained according to gamma correction formula, Fig. 2 shows two gamma correction curves, and wherein the variable k2 of solid line calibration curve is greater than
The variable k1 of dotted line calibration curve.It can be seen from the figure that one, shown with the brightness for being greater than present intensity when fingerprint identification area
When fingerprint recognition image is the present image of fingerprint identification area before monitoring pre-actuation signal, i.e. one timing of grayscale value, such as
Grayscale value is 200, brightness value can be made to be increased to L2 by L1 by the way that variable k1 is increased to variable k2 in this case.Two,
When the fingerprint recognition image that fingerprint identification area is shown using the brightness greater than present intensity is pre-set image, i.e., grayscale value is different
When, 255 can be set by the grayscale value of pre-set image, thus guarantee no matter the grayscale value of present image be it is how many, such as 200
Grayscale again may be by variable k1 increasing to variable k2 to make gray-scale intensity values be increased to L3 by L1.
As it can be seen that brightness value can be improved by proposing high-k for above-mentioned two situations, different k can use in this way
It is worth corresponding gamma correction formula to be corrected the brightness of display equipment, so that it is corresponding to obtain different grayscale-data voltage
Relation table, subsequently through calling the different grayscale-data voltage mapping table prestored can be so that display screen is aobvious respectively
Show different brightness.
The control process of display equipment provided by the invention is illustrated with two examples below.
By taking pre-actuation signal is the wake up instruction of display screen as an example, when user issues wake up instruction, controller is by fingerprint
The image of cog region and preset grayscale the-the first data voltage mapping table are matched to obtain the first data voltage, by
One data voltage is output to fingerprint identification area and is shown, fingerprint identification area is that low battery shows state at this time.It supervises at the same time
Survey unit can monitor the wake up instruction, after predetermined time delay, controller by fingerprint recognition image (including fingerprint know
The present image or pre-set image in other area) and preset grayscale the-the second data voltage mapping table matched to obtain second
Second data voltage is output to fingerprint identification area and shown by data voltage.In this case, for obtaining grayscale-the first
The first variable k1 in the updating formula of data voltage mapping table can be 200 candelas, for obtaining the number of grayscale-the second
It can be 500 candelas according to the second variable k2 in the updating formula of voltage mapping table.
By taking pre-actuation signal is the user authentication instruction that application program issues as an example, user authentication is issued in application program and is referred to
Before order, the image of fingerprint identification area and preset grayscale the-the first data voltage mapping table match by controller
To the first data voltage, the first data voltage is output to fingerprint identification area and is shown, fingerprint identification area is conventional aobvious at this time
Show state.When application program issues user authentication instruction, controller is by fingerprint recognition image (including the current of fingerprint identification area
Image or pre-set image) and preset grayscale the-the second data voltage mapping table matched to obtain the second data voltage, will
Second data voltage is output to fingerprint identification area and is shown, fingerprint identification area is highlighted state at this time.In this case,
The first variable k1 in updating formula for obtaining grayscale the-the first data voltage mapping table can be 350 candelas, use
The second variable k2 in the updating formula for obtaining the-the second data voltage of grayscale mapping table can be 500 candelas.
The control method of the display equipment provided according to the present invention, when monitoring the pre-actuation signal of fingerprint identification area,
When needing to carry out fingerprint recognition, can control fingerprint identification area brightness raising, convenient for user identify fingerprint identification area come into
Row fingerprint typing, improves user experience.
Fig. 3 show a kind of structural block diagram of display equipment of one embodiment of the invention offer.It can be seen from the figure that should
Show that equipment 30 includes display screen 31, monitoring unit 33, control chip 32, display screen 31 includes fingerprint identification area 311, the fingerprint
Cog region 311 is preferably in the region of fingerprint pattern.Control chip 32 is connected with display screen 31, monitoring unit 33, for when monitoring
When unit 33 monitors the pre-actuation signal of fingerprint identification area 311, fingerprint identification area 311 is controlled to be greater than the brightness of present intensity
Display.
In one embodiment, control chip 32 includes memory 321 and the first controller 322.Memory is for prestoring
Grayscale the-the first data voltage mapping table and grayscale the-the second data voltage mapping table, the-the first data voltage pair of grayscale
Answer the corresponding brightness=k1* (grayscale value/255) of the first data voltage in relation table2.2, the-the second data voltage of grayscale is corresponding to close
It is the corresponding brightness=k2* (grayscale value/255) of the second data voltage in table2.2, k1<k2.First controller 322 and memory
321, the fingerprint identification area 311 of display screen 31 is respectively connected with, in the pre-actuation signal for not monitoring fingerprint identification area 311
When, the grayscale value of the image of fingerprint identification area and grayscale the-the first data voltage mapping table are matched to obtain the first number
According to voltage, the first data voltage is output to fingerprint identification area and is shown；And when the pretrigger for monitoring fingerprint identification area
When signal, the grayscale value of the present image of fingerprint identification area and grayscale the-the second data voltage mapping table match
To the second data voltage, the second data voltage is output to fingerprint identification area and is shown.
In one embodiment, memory 321 is also used to prestore pre-set image.First controller 322 is not for monitoring
To fingerprint identification area 311 pre-actuation signal when, by the-the first data voltage pair of the grayscale value of the image of fingerprint identification area and grayscale
It answers relation table to be matched to obtain the first data voltage, the first data voltage is output to fingerprint identification area and is shown；And
When monitoring the pre-actuation signal, the grayscale value of pre-set image and grayscale the-the second data voltage mapping table are carried out
Matching obtains the second data voltage, and the second data voltage is output to fingerprint identification area and is shown.
In one embodiment, display equipment as shown in Figure 3 further comprises：Second controller 323, second control
Device 323 is connected with the non-fingerprint identification area 312 in display screen 31 other than fingerprint identification area 311, is used for non-fingerprint recognition
The grayscale value and grayscale the-the first data voltage mapping table of the image in area are matched to obtain the first data voltage, by first
Data voltage is output to non-fingerprint identification area and is shown.
The display equipment provided according to the present invention, when monitoring unit monitors the pre-actuation signal of fingerprint identification area, i.e.,
When needing to carry out fingerprint recognition, it can control fingerprint identification area brightness raising, identify fingerprint region convenient for user to carry out fingerprint
Typing improves user experience.
One embodiment of the invention also provides a kind of computer readable storage medium, is stored thereon with computer program, calculates
The control method of the display equipment as described in preceding any embodiment is realized when machine program is executed by processor.Computer storage is situated between
Matter can be any tangible media, such as floppy disk, CD-ROM, DVD, hard disk drive, even network medium etc..
Although being produced it should be appreciated that can be computer program the foregoing describe a kind of way of realization of embodiment of the present invention
Product, but the method or apparatus of embodiments of the present invention can be come in fact according to the combination of software, hardware or software and hardware
It is existing.Hardware components can use special logic to realize；Software section can store in memory, by instruction execution appropriate
System, such as microprocessor or special designs hardware execute.It will be understood by those skilled in the art that above-mentioned side
Method and equipment can be used computer executable instructions and/or is included in the processor control code to realize, such as such as
Disk, the mounting medium of CD or DVD-ROM, the programmable memory of such as read-only memory (firmware) or such as optics or
Such code is provided in the data medium of electrical signal carrier.Methods and apparatus of the present invention can be by such as ultra-large
The semiconductor or such as field programmable gate array of integrated circuit or gate array, logic chip, transistor etc. can be compiled
The hardware circuit realization of the programmable hardware device of journey logical device etc., can also be soft with being executed by various types of processors
Part is realized, can also be realized by the combination such as firmware of above-mentioned hardware circuit and software.
It will be appreciated that though it is referred to several modules or unit of device in the detailed description above, but this stroke
It point is only exemplary rather than enforceable.In fact, according to an illustrative embodiment of the invention, above-described two or
More multimode/unit feature and function can realize in a module/unit, conversely, an above-described module/mono-
The feature and function of member can be to be realized by multiple module/units with further division.In addition, above-described certain module/
Unit can be omitted under certain application scenarios.
It should be appreciated that determiner " first ", " second " and " third " used in description of the embodiment of the present invention is only used for
It more clearly illustrates technical solution, can not be used to limit the scope of the invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, made any modification, equivalent replacement etc. be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of control method for showing equipment, the display equipment includes display screen, and the display screen includes fingerprint identification area,
It is characterised in that it includes：
The pre-actuation signal of fingerprint identification area described in real-time monitoring；
When monitoring the pre-actuation signal, controls the fingerprint identification area and shown with the brightness for being greater than present intensity.
2. the control method of display equipment as described in claim 1, which is characterized in that the pre-actuation signal includes described aobvious
The wake up instruction of display screen and/or the user authentication instruction in application program.
3. the control method of display equipment as described in claim 1, which is characterized in that when monitoring the pre-actuation signal
When, control the fingerprint identification area be greater than present intensity brightness show including：
Before monitoring the pre-actuation signal, by the grayscale value of the image of the fingerprint identification area and the grayscale-the prestored
One data voltage mapping table is matched to obtain the first data voltage, and first data voltage is output to the fingerprint
Cog region is shown；
When monitoring the pre-actuation signal, by the grayscale value of fingerprint recognition image and the-the second data voltage of grayscale prestored
Mapping table is matched to obtain the second data voltage, and second data voltage is output to the fingerprint identification area and is carried out
It has been shown that, the corresponding brightness value=k1* (grayscale value/255) of first data voltage2.2, second data voltage is corresponding bright
Angle value=k2* (grayscale value/255)2.2, k1<k2.
4. the control method of display equipment as claimed in claim 3, which is characterized in that the fingerprint recognition image includes：Prison
Measure the present image or pre-set image of the pre-actuation signal foregoing description fingerprint identification area.
5. the control method of display equipment as claimed in claim 3, which is characterized in that the first variable k1 is 200 bank morals
It draws or 350 candelas, the second variable k2 is 500 candelas.
6. a kind of display equipment, which is characterized in that including：
Display screen, the display screen include fingerprint identification area；
Monitoring unit, the pre-actuation signal for fingerprint identification area described in real-time monitoring；
Control chip is connected with the display screen, the monitoring unit, for controlling when monitoring the pre-actuation signal
The fingerprint identification area is shown with the brightness for being greater than present intensity.
7. display equipment as claimed in claim 6, which is characterized in that the control chip includes：
Memory, for prestoring grayscale the-the first data voltage mapping table and grayscale the-the second data voltage mapping table,
Corresponding brightness=the k1* (grayscale value/255) of the first data voltage in the-the first data voltage of grayscale mapping table2.2,
Corresponding brightness=the k2* (grayscale value/255) of the second data voltage in the-the second data voltage of grayscale mapping table2.2,
k1<k2；
First controller is connected with the memory, the fingerprint identification area, for not monitoring the pre-actuation signal
When, the grayscale value of the image of the fingerprint identification area and the grayscale the-the first data voltage mapping table match
To the first data voltage, first data voltage is output to the fingerprint identification area and is shown；And works as and monitor institute
It is when stating pre-actuation signal, the grayscale value of the present image of the fingerprint identification area and the-the second data voltage of the grayscale is corresponding
Relation table is matched to obtain the second data voltage, and second data voltage is output to the fingerprint identification area and is shown
Show.
8. display equipment as claimed in claim 7, which is characterized in that the memory is also used to prestore pre-set image；
First controller is used for when not monitoring the pre-actuation signal, by the grayscale of the image of the fingerprint identification area
Value and the grayscale the-the first data voltage mapping table are matched to obtain the first data voltage, by the first data electricity
Pressure is output to the fingerprint identification area and is shown；And when monitoring the pre-actuation signal, by the pre-set image
Grayscale value and the grayscale the-the second data voltage mapping table are matched to obtain the second data voltage, by second number
It is shown according to voltage output to the fingerprint identification area.
9. display equipment as claimed in claim 7 or 8, which is characterized in that the control chip further comprises：
Non- fingerprint identification area in second controller and the memory, the display screen other than the fingerprint identification area
Be connected, for by the grayscale value of the image of the non-fingerprint identification area and the grayscale the-the first data voltage mapping table into
Row matching obtains the first data voltage, and first data voltage is output to the non-fingerprint identification area and is shown.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of control method of the display equipment as described in any one of claims 1 to 5 is realized when being executed by processor.
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| CN109767713A (en) * | 2019-01-09 | 2019-05-17 | 昆山国显光电有限公司 | Display screen, display panel drive method and display device |
| CN109801605A (en) * | 2019-02-27 | 2019-05-24 | 维沃移动通信有限公司 | Screen brightness regulation method, electronic equipment, mobile terminal and storage medium |
| CN110276326A (en) * | 2019-06-27 | 2019-09-24 | 云谷（固安）科技有限公司 | A kind of display equipment and display methods |
| CN110310597A (en) * | 2019-06-27 | 2019-10-08 | 云谷（固安）科技有限公司 | A kind of display equipment and display methods |
| CN112992067A (en) * | 2019-12-18 | 2021-06-18 | 敦泰电子股份有限公司 | Display device for realizing local high brightness |
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