CN113807121A - Fingerprint acquisition control method and device, electronic equipment and medium - Google Patents
Fingerprint acquisition control method and device, electronic equipment and medium Download PDFInfo
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The disclosure relates to a fingerprint acquisition control method, a fingerprint acquisition control device, an electronic device and a medium, wherein the fingerprint acquisition control method is applied to a display control chip of the electronic device with an optical fingerprint acquisition function, and the control method comprises the following steps: receiving fingerprint pressing information; determining a sending mode corresponding to a refreshing position according to the first preset refreshing position and the refreshing position of the display frame when the fingerprint pressing information is received; and sending preset information to a main control chip of the electronic equipment according to the determined sending mode corresponding to the refreshing position. According to the control method, the preset information is sent in different sending modes according to the relation between the refreshing position of the display frame and the first preset refreshing position when the fingerprint pressing information is received, the response time of the display control chip to the fingerprint pressing information can be shortened to a certain extent, the fingerprint collecting speed is further accelerated, and the use experience of a user is improved.
Description
Technical Field
The present disclosure relates to the field of intelligent devices, and in particular, to a fingerprint acquisition control method and apparatus, an electronic device, and a medium.
Background
With the continuous development of science and technology, a full-screen mobile phone gradually becomes the development trend of the mobile phone industry. In order to apply the fingerprint unlocking technology to the full-screen mobile phone, the optical fingerprint unlocking technology is developed.
When the optical fingerprint unlocking technology is used for unlocking the mobile phone, when a user presses a fingerprint acquisition area of the full screen by using a finger, after the detection device detects the pressing action of the finger, the controller of the mobile phone controls the display driving chip to improve the brightness of the fingerprint acquisition area of the full screen, the mobile phone enters a highlight display mode to acquire the fingerprint information of the mobile phone, the acquired fingerprint information is matched with the information input before, and the mobile phone can be unlocked if the fingerprint information is matched successfully.
In the unlocking process, after the display driving chip receives the instruction for improving the brightness of the fingerprint acquisition area, the highlight display mode can be usually entered after several frames of time, and the several frames of time are the response time of the display driving chip, so that the fingerprint unlocking process is delayed, and the use experience of a user is influenced.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a fingerprint acquisition control method, apparatus, electronic device, and medium.
According to a first aspect of the embodiments of the present disclosure, there is provided a fingerprint acquisition control method applied to a display control chip of an electronic device having an optical fingerprint acquisition function, the control method including:
receiving fingerprint pressing information;
determining a sending mode corresponding to a refreshing position according to a first preset refreshing position and the refreshing position of a display frame when the fingerprint pressing information is received;
and sending preset information to a main control chip of the electronic equipment according to the determined sending mode corresponding to the refreshing position.
Optionally, the determining, according to a first preset refresh position and a refresh position of a display frame when the fingerprint pressing information is received, a sending manner corresponding to the refresh position includes:
judging whether the refreshing position is in front of the first preset refreshing position of the display frame or not according to the first preset refreshing position and the refreshing position of the display frame when the fingerprint pressing information is received;
and when the refresh position is before the first preset refresh position of the display frame, sending the preset information in a first preset mode, wherein the first preset mode is that the preset information is sent at the first preset refresh position.
Optionally, after the refresh position is located at the first preset refresh position, sending the preset information in a second preset manner, where the second preset manner is to send the preset information at a second preset refresh position of a display frame when the fingerprint pressing information is received, where the second preset refresh position is a position corresponding to a last moment of a refresh process of the display frame when the fingerprint pressing information is received.
Optionally, the control method further includes:
receiving highlight display instruction information generated according to the preset information;
and highlighting a preset area according to the highlight instruction information so as to collect fingerprint information.
Optionally, the highlighting a preset area according to the highlight instruction information to acquire fingerprint information includes:
determining the receiving time of receiving the highlight instruction information according to the highlight instruction information;
and on the basis of the receiving time, delaying preset duration to highlight the preset area so as to acquire fingerprint information.
According to a second aspect of the embodiments of the present disclosure, there is provided a fingerprint acquisition control method applied to a main control chip of an electronic device having an optical fingerprint acquisition function, the control method including:
receiving preset information;
generating highlight instruction information according to the preset information;
and sending the highlight display instruction information to a display control chip of the electronic equipment.
Preferably, the control method further includes:
receiving fingerprint pressing information;
generating fingerprint acquisition instruction information according to the fingerprint pressing information;
and sending the fingerprint acquisition instruction information to a fingerprint acquisition device of the electronic equipment to acquire the fingerprint information.
According to a third aspect of the embodiments of the present disclosure, there is provided a fingerprint acquisition control device applied to a display control chip of an electronic device having an optical fingerprint acquisition function, the control device including:
the first pressing information receiving module is used for receiving fingerprint pressing information;
the first processing module is used for determining a sending mode corresponding to a refreshing position according to a first preset refreshing position and the refreshing position of a display frame when the fingerprint pressing information is received;
and the first sending module is used for sending preset information to a main control chip of the electronic equipment according to the determined sending mode corresponding to the refreshing position.
Optionally, the first processing module is specifically configured to:
judging whether the refreshing position is in front of the first preset refreshing position of the display frame or not according to the first preset refreshing position and the refreshing position of the display frame when the fingerprint pressing information is received;
the first sending module is specifically configured to:
and when the refresh position is before the first preset refresh position of the display frame, sending the preset information in a first preset mode, wherein the first preset mode is that the preset information is sent at the first preset refresh position.
Optionally, the first sending module is further specifically configured to:
and when the refreshing position is behind the first preset refreshing position, sending the preset information in a second preset mode, wherein the second preset mode is that the preset information is sent at a second preset refreshing position of a display frame when the fingerprint pressing information is received, and the second preset refreshing position is a position corresponding to the last moment of the refreshing process of the display frame when the fingerprint pressing information is received.
Optionally, the apparatus further comprises:
the first display instruction information receiving module is used for receiving highlight display instruction information generated according to the preset information;
the first processing module is further configured to highlight a preset area according to the highlight instruction information, so as to collect fingerprint information.
Optionally, the first processing module is specifically configured to:
determining the receiving time of receiving the highlight instruction information according to the highlight instruction information;
and on the basis of the receiving time, delaying preset duration to highlight the preset area so as to acquire fingerprint information.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a fingerprint acquisition control device applied to a main control chip of an electronic device having an optical fingerprint acquisition function, the control device including:
the second preset information receiving module is used for receiving preset information;
the second processing module is used for generating highlight instruction information according to the preset information;
and the second sending module is used for sending the highlight display instruction information to a display control chip of the electronic equipment.
Optionally, the apparatus further comprises:
the second pressing information receiving module is used for receiving fingerprint pressing information;
the second processing module is further used for generating fingerprint acquisition instruction information according to the fingerprint pressing information;
the second sending module is further used for sending the fingerprint acquisition instruction information to a fingerprint acquisition device of the electronic equipment so as to acquire the fingerprint information.
According to a fifth aspect of the embodiments of the present disclosure, there is provided an electronic device including the fingerprint acquisition control device as described above.
According to a sixth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium, wherein instructions of the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the fingerprint acquisition control method as described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when the control method in the disclosure is used for collecting the fingerprint, according to the relation between the refreshing position of the display frame when the fingerprint pressing information is received and the first preset refreshing position, the preset information is sent by adopting different sending modes, and compared with the control method in the prior art that the preset information is sent only at the position corresponding to the last moment of the refreshing process of the display frame, the response time of the display control chip to the fingerprint pressing information can be shortened to a certain extent, so that the fingerprint collecting speed is accelerated, and the use experience of a user is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a fingerprint acquisition control method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a fingerprint acquisition control method according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a fingerprint acquisition control method according to an exemplary embodiment.
FIG. 4 is a flowchart illustrating a fingerprint acquisition control method according to an exemplary embodiment.
Fig. 5 is a flowchart illustrating a fingerprint acquisition control method according to an exemplary embodiment.
FIG. 6 is an interaction flow diagram illustrating a fingerprint acquisition control method according to an example embodiment.
Fig. 7 is a schematic diagram illustrating a comparison of a prior art process flow with a method flow in the present disclosure according to an exemplary embodiment.
Fig. 8 is a block diagram illustrating a fingerprint acquisition control device according to an exemplary embodiment.
Fig. 9 is a block diagram illustrating a fingerprint acquisition control device according to an exemplary embodiment.
Fig. 10 is a block diagram illustrating a fingerprint acquisition control device according to an exemplary embodiment.
Fig. 11 is a block diagram illustrating a fingerprint acquisition control device according to an exemplary embodiment.
FIG. 12 is a block diagram of an electronic device shown in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
With the continuous development of science and technology, a full-screen mobile phone gradually becomes the development trend of the mobile phone industry. In order to apply the fingerprint unlocking technology to the full-screen mobile phone, the optical fingerprint unlocking technology is developed.
When the optical fingerprint unlocking technology is used for unlocking the mobile phone, when a user presses a fingerprint acquisition area of the full screen by using a finger, after the detection device detects the pressing action of the finger, the controller of the mobile phone controls the display driving chip to improve the brightness of the fingerprint acquisition area of the full screen, the mobile phone enters a highlight display mode to acquire the fingerprint information of the mobile phone, the acquired fingerprint information is matched with the information input before, and the mobile phone can be unlocked if the fingerprint information is matched successfully.
In the unlocking process, after the display driving chip receives the instruction for improving the brightness of the fingerprint acquisition area, the highlight display mode can be usually entered after several frames of time, and the several frames of time are the response time of the display driving chip, so that the fingerprint unlocking process is delayed, and the use experience of a user is influenced.
The disclosure provides a fingerprint acquisition control method, which is applied to a display control chip of an electronic device with an optical fingerprint acquisition function. The fingerprint acquisition control method can be applied to the fingerprint unlocking process of the electronic equipment, the payment process completed by the fingerprint identification method and other processes needing to acquire the fingerprint. When the fingerprint collection control method in the disclosure is used for collecting a fingerprint, according to the relation between the refreshing position of the display frame when the fingerprint pressing information is received and the first preset refreshing position, different sending modes are adopted to send the preset information, compared with the control method in the prior art that the preset information is sent only at the position corresponding to the last moment of the refreshing process of the display frame, the response time of a display control chip to the fingerprint pressing information can be shortened to a certain extent, the fingerprint collection speed is further accelerated, and the use experience of a user is improved.
According to an exemplary embodiment, as shown in fig. 1, the control method in the present embodiment may be applied to a display control chip of an electronic device, and the control method in the present embodiment includes:
and S110, receiving fingerprint pressing information.
In this step, the fingerprint pressing information may be a pressure value detected by the pressure sensor, the pressure sensor transmits the pressure value to a corresponding pin of the display control chip, and the display control chip receives the fingerprint pressing information through the corresponding pin.
The pressure sensor only transmits the pressure value larger than the preset value to the corresponding pin of the display control chip, so that frequent work of the display control chip caused by mistaken touch is avoided, and the service life of the display control chip is prolonged.
And S120, determining a sending mode corresponding to the refreshing position according to the first preset refreshing position and the refreshing position of the display frame when the fingerprint pressing information is received.
It is known to those skilled in the art that the display screen of the electronic device is refreshed continuously during the display process at a certain frequency, such as 60Hz, 90Hz or 120 Hz. When the display data of the display screen is refreshed at 60Hz, i.e. the display data is refreshed 60 times per second, the refreshing time duration of each frame of display frame is 16.67 ms.
In the refreshing process of the display screen, display data is scanned line by line from left to right from a first line (the number of lines is determined according to the resolution of the display screen, for example, the resolution is 1080 × 2400 for a display screen, 2400 lines need to be scanned in the refreshing process) at the upper left corner of the screen, the first line is scanned from the leftmost end of a second line to the rightmost end of the second line after being scanned, and a refreshing process of the display screen is completed until the whole display screen is scanned. And then, starting from the first line at the upper left corner of the display screen, restarting to perform the second refreshing scanning, and repeating the steps.
In this step, the first preset refresh position refers to a fixed line in the display screen refresh process, for example, a display screen with a resolution of 1080 × 2400, the first preset refresh position may be 2280 th line or 2000 th line, and the specific value of the first preset refresh position may be determined according to an actual situation. When the first preset refresh position is determined, the position of the scanning end, namely the refresh position with a larger line number, is selected as the first preset refresh position as far as possible according to the refresh principle of the display screen. Taking the display screen with the resolution of 1080 × 2400 as an example, the first preset refresh location may be selected from the 2000 th row to the 2400 th row, so that the fingerprint pressing information is collected before the first preset refresh location in one refresh process as much as possible.
Through setting up first preset refresh position, a refresh process that will show the display data of frame divide into first half and latter half, when the first half of refresh process received the fingerprint and pressed the information, send preset information (there is detailed introduction later) with first preset mode, just can send preset information to main control chip in order to ensure to press the current display frame of information at the receipt fingerprint, main control chip just can receive preset information at current display frame refresh in-process, and then in time feed back, response speed has been promoted to a certain extent. When fingerprint pressing information is received in the latter half of the refreshing process, in order to ensure that the preset information can be accurately sent and avoid the condition of missed sending, the preset information is sent at the position corresponding to the latest moment when the current display frame is refreshed, wherein the position corresponding to the latest moment when the current display frame is refreshed, namely the scanning end of the one-time refreshing process of the display frame, so as to improve the accuracy and the reliability of the control process.
Next, a specific example of the specific meaning of the refresh position of the display frame when the fingerprint pressing information is received in this step will be described. Taking a display screen with a resolution of 1080 × 2400 as an example, the display screen performs a refresh process, which is considered as a refresh process of one display frame. When the display screen refreshes the nth frame and when the display screen refreshes the 800 th row, the fingerprint pressing information is received, and the refreshing position of the display frame when the fingerprint pressing information is received is the 800 th row.
When the refresh position of the display frame when the fingerprint pressing information is received has different position relations relative to the first preset refresh position, different sending modes can be adopted for data transmission, so that the timeliness of information transmission is improved. The specific sending method is described in detail in the following embodiments, and is not described herein again.
In addition, in this embodiment, a counter may be used to count the number of rows related to the refresh position involved in the refresh process of the display frame in this embodiment, so as to improve the control accuracy. The counter starts counting from the first line of the display frame refresh, stops counting once until the last line of the display frame refresh, and starts counting from the beginning at the beginning of the next display frame.
And S130, sending preset information to a main control chip of the electronic equipment according to the determined sending mode corresponding to the refreshing position.
In step S120, a sending method corresponding to the current refresh position is determined, and in this step, preset information is sent according to the determined sending method corresponding to the refresh position. When the fingerprint pressing information is received, the refreshing position of the display frame falls before the first preset refreshing position, namely the refreshing position falls in the first half section of the display frame, at the moment, the preset information is sent to the main control chip at the first preset refreshing position, and the preset information is sent to the main control chip in time, so that the fingerprint collecting speed is accelerated. When the fingerprint pressing information is received, the refreshing position of the display frame falls behind the first preset refreshing position, namely the refreshing position falls in the second half section of the display frame, and at the moment, in order to ensure the sending accuracy of the preset information and avoid the condition of information missing, the preset signal is sent to the main control chip at the position corresponding to the last moment of the refreshing process of the current display frame.
In one example, taking a display screen with a resolution of 1080 × 2400 as an example, the first preset refresh position in this example is 2000 lines. In the process of refreshing the display frame of the Nth frame, when the display screen is refreshed to the 20 th row, the fingerprint pressing information is received, and then in the process of refreshing the display frame of the Nth frame, when the display screen is refreshed to the 2000 th row, the display control chip sends the preset information to the main control chip of the electronic equipment so as to ensure that the preset information is sent before the refreshing process of the display frame when the fingerprint pressing information is received is completed.
In another example, taking a display screen with a resolution of 1080 × 2400 as an example, the first preset refresh position in this example is 2000 lines. In the process of refreshing the display frame of the nth frame, when the display frame is refreshed to the 2200 th line, the fingerprint pressing information is received, and then the preset information is sent to the main control chip of the electronic device at the position corresponding to the last moment in the process of refreshing the display frame of the nth frame, namely when the current display frame is refreshed to the 2400 th line. The main control chip of the electronic device receives the preset information during the refreshing process of the (N + 1) th frame of the display screen.
The preset information in this embodiment may be a high level signal sent through an EN pin on the display control chip. For example, when the display control chip does not receive the fingerprint pressing information, the EN pin on the display control chip is in a low level state. When the display control chip receives the fingerprint pressing information, according to the determined sending mode corresponding to the refreshing position, the level signal output by the EN pin is pulled up, namely, the high level signal is output to the main control chip, and the preset information sending is completed.
According to an exemplary embodiment, as shown in fig. 2, the control method in the present embodiment includes:
and S210, receiving fingerprint pressing information.
This step is the same as the implementation of step S110 in the above embodiment, and is not described herein again.
S220, judging whether the refreshing position is before the first preset refreshing position of the display frame according to the first preset refreshing position and the refreshing position of the display frame when the fingerprint pressing information is received;
if yes, go to step S230; if not, step S240 is performed.
In this step, the meaning and the determination of the first preset refresh position and the refresh position of the display frame when the fingerprint pressed information is received are the same as the above-described embodiments.
As noted above, the display of the electronic device is refreshed from the top of the electronic device to the bottom of the electronic device in accordance with the resolution of the display during the refresh process. In an example, taking a refresh process of a display screen with a resolution of 1080 × 2400 as an example, the first preset refresh position is line 2280, and if the display control chip receives the fingerprint pressing information when the display frame of the display screen currently undergoing refresh is refreshed to line 800, the refresh position of the display frame during the fingerprint pressing information is line 800, and at this time, the refresh position is located before the first preset refresh position.
If the display frame of the display screen refreshes to the 2350 th line, the display control chip receives the fingerprint pressing information, the refreshing position of the display frame when the fingerprint pressing information is the 2350 th line, and at the moment, the refreshing position is behind the first preset refreshing position.
According to the determination method shown in the above example, the positional relationship between the refresh position and the first preset refresh position can be accurately determined according to the first preset refresh position and the refresh position, and then the preset information is sent in a sending manner corresponding to the refresh position. Here, it should be noted that when the display frame is refreshed to exactly the 2280 th row, that is, when the display frame is refreshed to exactly the first preset refresh position, the display control chip receives the fingerprint pressing information, and then considers that the refresh position is located behind the first preset refresh position, and sends the preset information in a corresponding manner.
And S230, sending preset information in a first preset mode.
If the refresh position of the display frame when the fingerprint pressing information is received is before the first preset refresh position of the display frame, the step is executed, and the preset information is sent in a first preset mode. The first preset mode is to send preset information at a first preset refresh position.
In an example, taking a refresh process of a display screen with a resolution of 1080 × 2400 as an example, the preset position is a 2280 th row, and if the display control chip receives the fingerprint pressing information when the display frame of the display screen currently undergoing refresh is refreshed to an 800 th row, the refresh position of the display frame during the fingerprint pressing information is the 800 th row, and at this time, the refresh position is located before the first preset refresh position. Then, even if the fingerprint pressing information is received when the display frame is refreshed to the 800 th row, the preset information is not sent, and the display frame is refreshed from the 800 th row according to a rule until the display frame is refreshed to the 2280 th row, and the display control chip sends the preset information to the main control chip of the electronic device.
And S240, sending preset information in a second preset mode.
If the refresh position of the display frame when the fingerprint pressing information is received is behind the first preset refresh position of the display frame, the step is executed, and the preset information is sent in a second preset mode. The second preset mode is that the preset information is sent at a second preset refreshing position of the display frame when the fingerprint pressing information is received, wherein the second preset refreshing position is a position corresponding to the last moment of the refreshing process of the display frame when the fingerprint pressing information is received, namely the position of the display frame refreshing to the 2400 th row.
In an example, still taking a refresh process of a display screen with a resolution of 1080 x 2400 as an example, the first preset refresh position is 2280 th row, and if the display frame of the display screen is refreshed to 2350 th row, and the display control chip receives the fingerprint pressing information, the refresh position of the display frame during the fingerprint pressing information is 2350 th row, and at this time, the refresh position is located after the first preset refresh position. When the display frame is refreshed to the 2350 th row, one refreshing process of the display frame is about to be completed, if the preset information is not sent to the main control chip of the electronic equipment in time, the preset information is delayed to be sent for one frame time length, and the response time of the display control chip is prolonged. In order to avoid the above situation, if the display control chip receives the fingerprint pressing information after the first preset refreshing position in the refreshing process of the display frame, the preset information is sent to the main control chip of the electronic device in the second preset refreshing position, that is, the 2400 th row, so that the situation of missed sending of the information is avoided, the control reliability and the safety are improved, and the user experience is improved.
According to an exemplary embodiment, as shown in fig. 3, the control method in the present embodiment further includes:
and S310, receiving highlight display instruction information generated according to the preset information.
Because the display control chip needs to execute corresponding display-related actions according to the received instruction information, after the display control chip sends preset information to the main control chip of the electronic device, highlight display instruction information returned by the main control chip still needs to be received, and then corresponding display actions are executed according to the highlight display instruction information. The highlight display instruction information is generated by the main control chip according to preset information.
And S320, highlighting the preset area according to the highlight instruction information.
Because this embodiment is used on the electronic equipment who has the optics fingerprint collection function, consequently, need carry out highlight display to the fingerprint collection region after, just can gather accurate fingerprint information.
The preset area in this embodiment is a fingerprint collection area that is set on a display screen of the electronic device, and when the display control chip receives highlight instruction information, the fingerprint collection area is highlighted.
The method comprises the steps that under the influence of the inherent property of a display control chip, when the display control chip receives highlight instruction information, the receiving time of the highlight instruction information is determined, and the preset time is delayed to highlight a preset area on the basis of the receiving time. The receiving time may be a frame number in a display screen refreshing process as a reference, for example, highlight instruction information is received when the display screen is refreshed to the nth frame. The delayed preset duration is also referred to as a frame number, for example, after receiving the highlight instruction information, the preset area is highlighted by delaying 2 frames. The delay time is generally related to the inherent property of the display control chip, and the delay time of the display control chip of different models, different specifications and different manufacturers can be different.
In one example, the display control chip receives highlight instruction information at the nth frame, the delay duration of the display control chip is 1 frame, and then the display control chip does not highlight the preset area at the (N + 1) th frame, and the display control chip acts at the (N + 2) th frame to highlight the preset area, so as to collect the fingerprint information.
The disclosure also provides a fingerprint acquisition control method, which is applied to a main control chip of the electronic equipment with the optical fingerprint acquisition function. The fingerprint collection control method applied to the main control chip of the electronic device in the embodiment is matched with the fingerprint collection control method applied to the display control chip of the electronic device to jointly realize fingerprint collection control.
According to an exemplary embodiment, as shown in fig. 4, the control method in the present embodiment includes:
and S410, receiving preset information.
The preset information received in this step is sent by the display control chip.
And S420, generating highlight display instruction information according to the preset information.
The highlight instruction information may be high level information transmitted through a corresponding pin of the main control chip. And after receiving the preset information, the main control chip automatically generates highlight display instruction information. For example, before the preset information is received, the pin corresponding to the main control chip is in a low level state. After receiving the preset information, the level on the pin corresponding to the main control chip is pulled high, and the pin is changed into a high level state.
And S430, sending the highlight display instruction information to a display control chip of the electronic equipment.
According to an exemplary embodiment, as shown in fig. 5, in this embodiment, the fingerprint acquisition control method further includes:
and S510, receiving fingerprint pressing information.
The fingerprint pressing information in this embodiment can be a pressure value detected by the pressure sensor, the pressure sensor transmits the pressure value to the corresponding pin of the main control chip, and the main control chip receives the fingerprint pressing information through the corresponding pin.
And S520, generating fingerprint acquisition instruction information according to the fingerprint pressing information.
After receiving the fingerprint pressing information, the main control chip generates fingerprint acquisition instruction information, and the fingerprint acquisition instruction information may be, for example, level state information of a corresponding pin connected to the fingerprint acquisition device.
And S530, sending the fingerprint acquisition instruction information to a fingerprint acquisition device of the electronic equipment.
The main control chip sends the fingerprint acquisition instruction to the fingerprint acquisition device of the electronic equipment through the corresponding pin. According to the above embodiments, the display control chip may highlight the preset area, and the fingerprint acquisition device acquires the fingerprint information pressed on the preset area of the display screen of the electronic device in the state of highlighting the preset area after receiving the fingerprint acquisition instruction, so as to acquire clear fingerprint information.
After fingerprint information is collected by the fingerprint collecting device, the fingerprint information is sent to the main control chip, the main control chip compares the collected fingerprint information with a prestored fingerprint model, and if the fingerprint information can be matched with the prestored fingerprint model, the mobile phone can be unlocked or a payment process and the like can be completed according to actual conditions.
According to an exemplary embodiment, in the whole fingerprint acquisition process, a display control chip, a main control chip, an image acquisition device, a pressure sensor arranged on a display screen and the like of the electronic equipment are involved in total. Since the working principles of the pressure sensor and the image acquisition device are consistent with those of the related art, the details are not repeated herein. As shown in fig. 6, in this embodiment, the whole interaction process between the display control chip and the main control chip is described. The control method in the embodiment includes:
s610, the display control chip receives fingerprint pressing information.
S620, the display control chip determines the refreshing position of the display frame when the fingerprint pressing information is received.
S630, the display control chip judges whether the refresh position is before the first preset refresh position of the display frame.
And S640, the display control chip sends preset information to the main control chip in a first preset mode or a second preset mode.
And S650, receiving preset information by the main control chip.
And S660, the main control chip generates highlight display instruction information.
And S670, the main control chip sends highlight display instruction information to the display control chip.
And S680, the display control chip receives the highlight display instruction information.
And S690, the display control chip highlights the preset area.
To illustrate the superiority of the fingerprint collection control method in the present disclosure compared to the fingerprint collection control method in the related art, as shown in fig. 7, the flow of the control method in the related art and the flow of the control method in the present disclosure are compared.
First, a fingerprint collection control method in the related art will be explained. Referring to fig. 7, when the display frame of the display screen is refreshed to the 200 th line of the nth frame, the preset area of the display screen receives a finger press, and after the pressure sensor in the preset area detects the finger press, fingerprint press information is transmitted to the display control chip. After the display control chip receives the fingerprint pressing information, the display control chip transmits preset information to the main control chip through the TE pin at a position corresponding to the last moment of the refreshing process of the current display frame of the received fingerprint pressing information, namely when the current display frame is refreshed to the 2400 th row. Since the display control chip sends the preset information to the main control chip only when the last row is refreshed in the refreshing process, the main control chip necessarily receives the preset information in the refreshing process of the next frame (the (N + 1) th frame). Due to the inherent property of the chip, the main control chip transmits information to the display control chip through the TE pin at the position corresponding to the last moment of the refresh process, that is, when the refresh is performed to the 2400 th row. Therefore, after the main control chip receives the preset information at the (N + 1) th frame, the highlight display instruction information is generated according to the preset information, and when the refresh process of the (N + 1) th frame is refreshed to the 2400 th row, the highlight display instruction information is sent to the display control chip through the TE pin. Since the highlight display instruction information is sent to the display control chip in the last row of the refresh process of the (N + 1) th frame, the display control chip must receive the display highlight instruction in the (N + 2) th frame. Due to the inherent property of the display control chip, after receiving the highlight display instruction information, the display control chip also delays one frame (namely, the N +2 th frame) to execute corresponding actions. Therefore, after receiving the highlight instruction, the display control chip will take effect in the refresh process of the display frame of the (N + 3) th frame, and highlight the preset area, that is, at time t2 in fig. 7, the display control chip enters the highlight mode to highlight the preset area. The fingerprint information collection process can be completed only from the moment when the display control chip receives the fingerprint pressing information to the moment when the display control chip highlights the preset area, at least two frames of time are needed in the process, the duration of executing relevant operations by utilizing the fingerprint information is prolonged, and user experience is poor.
The fingerprint collection control method of the present disclosure will be described with reference to fig. 7. When the display frame of the display screen is refreshed to the 200 th line of the Nth frame, the finger pressing is received in the preset area of the display screen, and after the pressure sensor in the preset area detects that the finger is pressed, the fingerprint pressing information is transmitted to the display control chip. When the display control chip receives the fingerprint pressing information, the display control chip does not perform any processing temporarily, and the display frame is refreshed continuously. When the current frame (i.e., the nth frame) is refreshed to the 2280 th row, the display control chip sends the preset information to the main control chip, and the preset information is not sent to the main control chip in the last row of the refresh process of the nth frame, so that the main control chip can receive the preset information in the refresh process of the nth frame without waiting for the N +1 th frame to receive the preset information. After receiving the preset information, the main control chip generates highlight instruction information according to the preset information, and immediately feeds the highlight instruction information back to the display control chip, so that the display control chip can receive the highlight instruction information in the N frame refreshing process. Due to the inherent property of the display control chip, after receiving the highlight display instruction, the display control chip delays one frame (i.e., the (N + 1) th frame) of time to execute the corresponding action. Therefore, after receiving the highlight instruction, the display control chip will take effect in the display frame refresh process of the (N + 2) th frame, and highlight the preset area, that is, at time t1 in fig. 7, the display control chip enters the highlight mode to highlight the preset area.
Therefore, referring to FIG. 7, the time period between time t1 and time t2 is the time period saved by the fingerprint acquisition method of the present disclosure. It has been shown from related experiments that the time for collecting a fingerprint using the fingerprint collection method of the present disclosure can be reduced by about one frame, compared to collecting a fingerprint using the fingerprint collection method of the related art. Approximately 16.67ms can be saved when the refresh rate of the display screen is 60 Hz. The time of unlocking an electronic product by using an optical unlocking method of an existing electronic product with an OLED display screen is about 250ms, the time of about 16.67ms can be saved by using the fingerprint acquisition method in the disclosure, and the use experience of a user is improved.
In addition, it should be noted that, if the first preset position is 2280 th row, when the corresponding refresh position when the fingerprint pressing information is received is that the display frame is refreshed to 2300 th row, at this time, the refresh position falls in the second half of the refresh process of the display frame, and at this time, the transmission process of the preset information and the highlight instruction information between the display control chip and the main control chip is the same as the implementation mode in the related art, and details are not repeated here.
The present disclosure further provides a fingerprint collection control device, which is applied to a display control chip of an electronic device with an optical fingerprint collection function, and the fingerprint collection control device can be integrated on the display control chip to implement the fingerprint collection control method in the above embodiments.
According to an exemplary embodiment, as shown in fig. 8, the fingerprint collection control device in this embodiment includes a first pressing information receiving module 110, a first processing module 120 and a first sending module 130, and is configured to implement steps S110 to S130, and steps S210 to S240 in the above embodiments. The first pressing information receiving module 110 is configured to implement step S110, the first processing module 120 is configured to implement step S120, and the first sending module 130 is configured to implement step S130.
According to an exemplary embodiment, as shown in fig. 9, the fingerprint acquisition control device in this embodiment includes a first display instruction information receiving module 140 and a first processing module 120, the first display instruction information receiving module 140 of the fingerprint acquisition control device in this embodiment is configured to perform step S310 in the method embodiment, and the first processing module 120 is configured to perform step S320 in the method embodiment.
The disclosure also provides a fingerprint collection control device, which is applied to a main control chip of an electronic device with an optical fingerprint collection function. As shown in fig. 10, the fingerprint acquisition control device includes a second preset information receiving module 210, a second processing module 220 and a second sending module 230. The fingerprint collection control device in this embodiment is used to implement steps S410 to S430. The second preset information receiving module 210 is configured to implement step S410, the second processing module 220 is configured to implement step S420, and the second sending module 230 is configured to implement step S430.
According to an exemplary implementation, as shown in fig. 11, the fingerprint acquisition control device in this embodiment includes a second pressing information receiving module 240, a second processing module 220, and a second sending module 230, which are used to implement steps S510 to S530. In this embodiment, the second pressing information receiving module is configured to implement step S510, the second processing module is configured to implement step S520, and the second sending module is configured to implement step S530.
Fig. 12 is a block diagram of an electronic device. The present disclosure also provides for an electronic device, for example, the device 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
The processing component 402 generally controls the overall operation of the device 400, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 402 can include one or more modules that facilitate interaction between the processing component 402 and other components. For example, the processing component 402 can include a multimedia module to facilitate interaction between the multimedia component 408 and the processing component 402.
The memory 404 is configured to store various types of data to support operations at the device 400. Examples of such data include instructions for any application or method operating on device 400, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 404 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 400 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 410 is configured to output and/or input audio signals. For example, the audio component 410 includes a Microphone (MIC) configured to receive external audio signals when the device 400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 404 or transmitted via the communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.
The I/O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 414 includes one or more sensors for providing status assessment of various aspects of the device 400. For example, the sensor component 414 can detect an open/closed state of the device 400, the relative positioning of components, such as a display and keypad of the device 400, the sensor component 414 can also detect a change in position of the device 400 or a component of the device 400, the presence or absence of user contact with the device 400, orientation or acceleration/deceleration of the device 400, and a change in temperature of the apparatus 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 416 is configured to facilitate wired or wireless communication between the device 400 and other devices. The device 400 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
A non-transitory computer readable storage medium, such as the memory 404, including instructions executable by the processor 420 of the device 400 to perform the method described above, is provided in another exemplary embodiment of the present disclosure. For example, the computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like. The instructions in the storage medium, when executed by a processor of the electronic device, enable the electronic device to perform the above-described method.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (16)
1. A fingerprint collection control method is applied to a display control chip of an electronic device with an optical fingerprint collection function, and is characterized by comprising the following steps:
receiving fingerprint pressing information;
determining a sending mode corresponding to a refreshing position according to a first preset refreshing position and the refreshing position of a display frame when the fingerprint pressing information is received;
and sending preset information to a main control chip of the electronic equipment according to the determined sending mode corresponding to the refreshing position.
2. The fingerprint collection control method according to claim 1, wherein the determining, according to a first preset refresh position and a refresh position of a display frame when the fingerprint pressing information is received, a sending mode corresponding to the refresh position includes:
judging whether the refreshing position is in front of the first preset refreshing position of the display frame or not according to the first preset refreshing position and the refreshing position of the display frame when the fingerprint pressing information is received;
and when the refreshing position is before the first preset refreshing position of the display frame, sending the preset information in a first preset mode, wherein the first preset mode is that the preset information is sent at the first preset refreshing position.
3. The fingerprint acquisition control method according to claim 2, wherein the preset information is sent in a second preset manner after the refresh location is at the first preset refresh location;
the second preset mode is that the preset information is sent at a second preset refreshing position of the display frame when the fingerprint pressing information is received, wherein the second preset refreshing position is a position corresponding to the last moment of the refreshing process of the display frame when the fingerprint pressing information is received.
4. The fingerprint collection control method according to claim 1, wherein the control method further comprises:
receiving highlight display instruction information generated according to the preset information;
and highlighting a preset area according to the highlight instruction information so as to collect fingerprint information.
5. The fingerprint collection control method according to claim 4, wherein the highlighting a preset area according to the highlighting instruction information to collect fingerprint information comprises:
determining the receiving time of receiving the highlight instruction information according to the highlight instruction information;
and on the basis of the receiving time, delaying preset duration to highlight the preset area so as to acquire fingerprint information.
6. A fingerprint collection control method is applied to a main control chip of an electronic device with an optical fingerprint collection function, and is characterized by comprising the following steps:
receiving preset information;
generating highlight instruction information according to the preset information;
and sending the highlight display instruction information to a display control chip of the electronic equipment.
7. The fingerprint collection control method according to claim 6, wherein the control method further comprises:
receiving fingerprint pressing information;
generating fingerprint acquisition instruction information according to the fingerprint pressing information;
and sending the fingerprint acquisition instruction information to a fingerprint acquisition device of the electronic equipment so as to acquire the fingerprint information.
8. The utility model provides a fingerprint collection controlling means, is applied to the display control chip that has the electronic equipment of optics fingerprint collection function, its characterized in that, controlling means includes:
the first pressing information receiving module is used for receiving fingerprint pressing information;
the first processing module is used for determining a sending mode corresponding to a refreshing position according to a first preset refreshing position and the refreshing position of a display frame when the fingerprint pressing information is received;
and the first sending module is used for sending preset information to a main control chip of the electronic equipment according to the determined sending mode corresponding to the refreshing position.
9. The fingerprint acquisition control device of claim 8, wherein the first processing module is specifically configured to:
judging whether the refreshing position is in front of the first preset refreshing position of the display frame or not according to the first preset refreshing position and the refreshing position of the display frame when the fingerprint pressing information is received;
the first sending module is specifically configured to:
and when the refreshing position is before the first preset refreshing position of the display frame, sending the preset information in a first preset mode, wherein the first preset mode is that the preset information is sent at the first preset refreshing position.
10. The fingerprint acquisition control device of claim 9, wherein the first sending module is further specifically configured to:
after the refreshing position is at the first preset refreshing position, sending the preset information in a second preset mode; the second preset mode is that the preset information is sent at a second preset refreshing position of the display frame when the fingerprint pressing information is received, wherein the second preset refreshing position is a position corresponding to the last moment of the refreshing process of the display frame when the fingerprint pressing information is received.
11. The fingerprint acquisition control device of claim 8, wherein the device further comprises:
the first display instruction information receiving module is used for receiving highlight display instruction information generated according to the preset information;
the first processing module is further configured to highlight a preset area according to the highlight instruction information, so as to collect fingerprint information.
12. The fingerprint acquisition control device of claim 11, wherein the first processing module is specifically configured to:
determining the receiving time of receiving the highlight instruction information according to the highlight instruction information;
and on the basis of the receiving time, delaying preset duration to highlight the preset area so as to acquire fingerprint information.
13. The utility model provides a fingerprint collection controlling means, is applied to the main control chip of the electronic equipment that has optical fingerprint collection function, its characterized in that, controlling means includes:
the second preset information receiving module is used for receiving preset information;
the second processing module is used for generating highlight instruction information according to the preset information;
and the second sending module is used for sending the highlight display instruction information to a display control chip of the electronic equipment.
14. The fingerprint acquisition control device of claim 13, wherein the device further comprises:
the second pressing information receiving module is used for receiving fingerprint pressing information;
the second processing module is further used for generating fingerprint acquisition instruction information according to the fingerprint pressing information;
the second sending module is further used for sending the fingerprint acquisition instruction information to a fingerprint acquisition device of the electronic equipment so as to acquire the fingerprint information.
15. An electronic device, characterized in that it comprises a fingerprint acquisition control device according to any one of claims 8 to 12, and claim 13 or 14.
16. A non-transitory computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the fingerprint acquisition control method of any one of claims 1 to 5, and claim 6 or 7.
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