WO2019184258A1

WO2019184258A1 - Display control method and electronic device

Info

Publication number: WO2019184258A1
Application number: PCT/CN2018/104838
Authority: WO
Inventors: 曾志民; 王永亮; 钟玲
Original assignee: 联想(北京)有限公司
Priority date: 2018-03-29
Filing date: 2018-09-10
Publication date: 2019-10-03
Also published as: CN108510962B; CN108510962A

Abstract

A display control method (100), comprising: when it is detected that a human body part is disposed in a human body feature acquisition area of a screen (2100), adjusting the display brightness of the screen (2100) so same is switched from a first brightness value to a second brightness value, wherein the second brightness value is higher than the first brightness value (110); and adjusting an image displayed in at least part of a display area of the screen (2100) so same is switched from a first image to a second image capable of reducing the display brightness of the at least part of the display area, wherein the second image has a transparency parameter (120). The system can automatically adjust display content of a display area of a screen (2100) when detecting that a user is using a fingerprint acquisition function of an electronic device (200, 2000), so that the brightness of the display area does not change greatly, thereby being perceived by the user and thus damaging the user's eyes. In addition, a fingerprint acquisition operation can be completed in a normal manner.

Description

Display control method and electronic device

Technical field

The present disclosure relates to the field of intelligent display, and in particular, to a display control method and an electronic device.

Background technique

Screen fingerprint technology is an emerging hot development direction for mobile phone fingerprints, and will be widely used in the next few years. When the fingerprint image is captured by the screen fingerprint technology, the screen needs to be highlighted in the collection area, that is, the display brightness of the area is increased to meet the needs of fingerprint collection. The current electronic devices cannot control the screen to only highlight the fingerprint collection area, but only the entire screen can be lighted, which causes a problem. The screen will cause a sudden increase in brightness when the highlight is applied, which leads to the user using the electronic device. When the fingerprint is collected, the human eye will notice the brightness change of the screen, which makes the user feel very glaring, and will cause certain damage to the user's eyes for a long time.

Summary of the invention

The problem to be solved by the present disclosure is to provide a display control method capable of automatically adjusting the display content of the screen while the screen is being adjusted by the system, so that the brightness of the display area does not change greatly. An electronic device to which the method is applied.

In order to solve the above problems, in a first aspect, the present disclosure provides a display control method, including: detecting that a human body portion is placed on a human body feature collection area of a screen: adjusting a brightness display of the screen to be switched by a first brightness value a second brightness value, the second brightness value being higher than the first brightness value; adjusting a display image of at least a portion of the display area of the screen to switch from the first image to being capable of lowering the at least part of the display area A second image of brightness is displayed, wherein the second image has a transparency parameter.

According to the display control method of the first aspect, the display control method further includes: acquiring a human body feature image; determining, according to the result of the collection of the human body feature image, whether to switch the brightness value of the screen from the second brightness value And determining, according to the human body feature image acquisition result, whether to switch the display content of the display area from the second image to the first image.

The display control method according to the first aspect, the display control method further includes: acquiring the first brightness value and the second brightness value; determining the second image according to the first brightness value and the second brightness value Transparency.

According to the display control method of the first aspect, the second image is an image having the same content as the first image.

According to the display control method of the first aspect, the switching of the luminance value of the screen is completed in synchronization with the switching of the display image of the display area.

In a second aspect, an electronic device is provided, comprising: a detecting device configured to detect a human body part of a human body feature collection area on a screen: a data processing device configured to adjust the said signal according to the sensing signal transmitted by the detecting device The brightness of the screen is displayed such that it switches from the first brightness value to the second brightness value, the second brightness value is higher than the first brightness value, and adjusts the display image of at least part of the display area of the screen to Switching from the first image to a second image capable of reducing display brightness of the at least a portion of the display area, wherein the second image has a transparency parameter.

The electronic device according to the second method, wherein the detecting device is a human body feature detector disposed under the screen, and configured to collect a human body feature image; the data processing device is further configured to be according to the human body feature image Determining whether the brightness value of the screen is switched from the second brightness value to the first brightness value, and determining whether to display the display content of the display area by the human body feature image collection result The two images are switched to the first image.

The electronic device according to the second method, the data processing device is further configured to: acquire the first brightness value and the second brightness value; determine the first according to the first brightness value and the second brightness value The transparency of the two images.

The electronic device according to the second method, wherein the second image is a picture having the same content information as the first content.

According to the electronic device of the second method, the switching of the brightness value of the screen is completed in synchronization with the switching of the display image of the display area.

The utility model has the beneficial effects that the system can automatically adjust the display content of the display area of the screen when detecting that the user is using the fingerprint collection function of the electronic device, so that the brightness of the display area does not change greatly, and the user is perceived. In addition, the user's eyes are damaged, and the fingerprint collection operation can be completed normally.

DRAWINGS

FIG. 1 is a schematic flowchart of a display control method according to an embodiment of the present disclosure; FIG.

2A is a schematic block diagram of an electronic device in accordance with another embodiment of the present disclosure;

2B is a schematic structural diagram of an electronic device according to still another embodiment of the present disclosure;

3 is a schematic flowchart of a display control method according to a first modification of the present disclosure;

4 is a schematic flowchart of a display control method according to a second modification of the present disclosure;

FIG. 5 is a schematic flowchart of a display control method according to a third modification of the present disclosure; FIG.

6 is a schematic flowchart of a display control method according to a fourth modification of the present disclosure;

FIG. 7 is a schematic flowchart of a display control method according to a fifth modification of the present disclosure.

detailed description

The present disclosure is described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic flow chart of a display control method according to an embodiment of the present disclosure. The display control method 100 of FIG. 1 is performed by an electronic device, which may be a mobile phone, a tablet, or other touch device. The display control method 100 includes:

110: When detecting that the human body part is placed on the human body feature collection area of the screen: adjusting the brightness display of the screen to switch from the first brightness value to the second brightness value, and the second brightness value is higher than the first brightness value;

120: Adjusting a display image of at least part of the display area of the screen to switch from the first image to a second image capable of reducing display brightness of at least part of the display area, wherein the second image has a transparency parameter.

It should be understood that the body portion can optionally be the surface of any skin having identifiable features such as a fingerprint, and the like. The human body feature collection area corresponds to a sensor that detects a biological characteristic of a human body. The display area refers to a non-human feature collection area in the screen. Adjusting the brightness of the screen can be performed in various ways. For example, an LCD (Liquid Crystal Display) backlight or an OLED (Organic Light-Emitting Diode) backlight can be used. The adjusting the display image of the at least part of the display area of the screen may include: displaying a mask having a certain alpha channel value (transparency value) in a layer in front of the image of the first image, that is, the mask is subjected to the transparency thereof. The effect of the value can block a certain high-intensity light from exiting the screen. Optionally, the alpha value = (luminance value of the highlight - the current lcd backlight value) / the brightness value of the highlight; or the image of the second image is replaced while the picture of the first image is cancelled by the method of not superimposing the layer In this case, the transparency of the picture of the first image is higher than the transparency of the second image. Optionally, the display image on all non-human feature acquisition areas is adjusted.

Alternatively, the display image of at least a portion of the display area of the screen is adjusted while adjusting the brightness display of the screen, or before adjusting the brightness display of the screen.

In addition, before the detecting that the human body part is placed on the human body feature collection area of the screen, the method further includes: displaying a prompt picture in the human body feature collection area, where the transparency parameter of the prompt picture is higher than the transparency of the second image parameter. After the detecting that the human body part is placed on the human body feature collection area of the screen, the prompt picture may be revoked. Optionally, the prompt picture is cancelled before the brightness display of the adjustment screen is displayed. Thereby, it is possible to better acquire human biometrics when the backlight is in the highlight mode.

Further, after the brightness display of the adjustment screen, the method further includes: acquiring a human biometric image from the human body feature collection area by using a sensor, and performing detection.

According to the display control method 100 of FIG. 1, the method further includes: collecting a human body feature image; determining, according to the collection result of the human body feature image, whether to switch the brightness value of the screen from the second brightness value to the first brightness value; determining according to the human body feature image collection result Whether to switch the display content of the display area from the second image to the first image.

According to the display control method 100 of FIG. 1, the method further includes: acquiring the first brightness value and the second brightness value; determining the transparency of the second image according to the first brightness value and the second brightness value. For example, in the case where a front layer of a picture of the first image displays a mask having a certain alpha channel value (transparency value), the alpha channel value may be a function negatively related to the first brightness value, or a second The function of the positive correlation of the luminance values is not limited in this embodiment. In this case, the user does not feel the change in brightness, and the user experience is ensured while ensuring the recognition efficiency. In addition, when the method of not overlaying the layer is adopted, that is, when the picture of the second image is deleted while the picture of the first image is being cancelled, the transparency of the picture of the first image is higher than the transparency of the second image, the first The transparency of the two images may also be a function that is negatively correlated with the first luminance value, or a function that is positively correlated with the second luminance value, which is not limited in this embodiment.

According to the display control method 100 of FIG. 1, the second image is an image having the same content as the first image. Thereby, the content of the first image and the second image are the same, and the continuity of the user experience can be ensured while the brightness does not significantly increase, so that the user does not feel the change of the image on the screen.

According to the display control method 100 of FIG. 1, the switching of the luminance value of the screen is completed in synchronization with the switching of the display image of the display area. Since the user does not feel that the brightness suddenly brightens if the switching of the brightness value of the screen is after the switching of the display image of the display area, there is a possibility of sudden darkening. Thereby, in the case where the switching of the luminance value of the screen and the switching of the display image of the display area are completed, the user does not feel the darkening of the brightness during the operation, and the user experience is optimized.

2A is a schematic block diagram of an electronic device in accordance with another embodiment of the present disclosure. The electronic device 200 of FIG. 2A includes:

The detecting device 210 is configured to detect that the human body part is placed on the human body feature collection area of the screen:

The data processing device 220 is configured to adjust the brightness display of the screen according to the sensing signal transmitted by the detecting device to switch from the first brightness value to the second brightness value, the second brightness value is higher than the first brightness value, and adjust the screen The display image of the at least partially displayed area is switched from the first image to a second image capable of reducing the display brightness of at least a portion of the display area, wherein the second image has a transparency parameter.

According to the electronic device 200 of FIG. 2A, the detecting device is a human body feature detector disposed at the bottom of the screen for collecting a human body feature image; the data processing device is further configured to determine whether the brightness value of the screen is determined according to the collection result of the human body feature image The second brightness value is switched to the first brightness value, and it is determined whether to switch the display content of the display area from the second image to the first image according to the acquisition result of the human body feature image.

According to the electronic device 200 of FIG. 2A, the data processing device is further configured to: acquire the first brightness value and the second brightness value; and determine the transparency of the second image according to the first brightness value and the second brightness value.

According to the electronic device 200 of FIG. 2A, the second image is a picture having the same content information as the first content.

According to the electronic device 200 of FIG. 2A, the switching of the brightness value of the screen is completed in synchronization with the switching of the display image of the display area.

FIG. 2B is a schematic structural diagram of an electronic device 2000 according to still another embodiment of the present disclosure. The electronic device 2000 of FIG. 2B includes:

Screen 2100; backlight 2300;

The sensor 2200 is configured to detect that the human body portion is placed on the human body feature collection area of the screen 2100:

The controller 2400 is configured to: adjust the brightness of the backlight 2300 according to the sensing signal of the sensor 2200 to switch from the first brightness value to the second brightness value, the second brightness value is higher than the first brightness value; and adjust the screen The display image of at least a portion of the non-human feature acquisition area of 2100 is switched from the first image to a second image capable of reducing the display brightness of at least a portion of the display area.

FIG. 2B shows a schematic structural diagram of an electronic device 2000 of one specific example of the present disclosure. It should be understood that, in the structure of FIG. 2B, the sensor 2200 is located below the backlight (eg, LCD or OLED backlight, etc.), but the disclosure is not limited thereto, and may be located above the backlight. The sensor can also be made as a translucent CMOS sensor. The position of the controller 2400 is also arbitrary and can be located anywhere in the structure.

The operation and function of each device are explained above with respect to FIGS. 2A and 2B corresponding to FIG. 1. It should be understood that the functions of the electronic device of FIGS. 2A and 2B are also applicable to the various modifications described below, in more detail. See the following for specific embodiments.

FIG. 3 is a schematic flowchart of a display control method according to a first modification of the present disclosure. In the first modification, the LCD backlight is used to adjust the brightness, and the fingerprint recognition area corresponds to the human body feature collection area. The image after displaying the target picture corresponds to the second image. The display control method of the first modification includes the following operations:

301: A fingerprint recognition area in which a user's finger is placed on the screen is detected.

302: The fingerprint recognition sensor notifies the processor to start acquiring the fingerprint identification image.

303: Display a target picture in the non-fingerprint recognition area, where the alpha channel value is predetermined, optionally, the alpha channel value=(highlight brightness value-current LCD backlight brightness value)/highlight brightness value.

304: Does the monitoring reach the first predetermined triggering time before it completes the display? (The first predetermined triggering time indicates the timing at which the LCD backlight triggers the highlighting to achieve the display of the target picture and the synchronization of the highlights); if YES (ie, the predetermined time is reached), proceed to operation 305; if no (ie If the predetermined time has not been reached, then proceed to operation 306.

305: LCD backlight triggers highlighting.

306: The LCD backlight maintains the current brightness value.

307: The fingerprint recognition sensor acquires a fingerprint recognition image.

308: LCD backlight triggers the cancellation of highlights.

309: Monitoring whether the LCD backlight is reached before the first scheduled revocation time before the cancellation of the highlight is completed? (The first predetermined revocation time indicates the timing of revoking the target picture such that synchronization of the undo highlight and the undo target picture is achieved); if so, proceeds to operation 310; if otherwise, proceeds to operation 311.

310: Undo the target picture and end the process.

311: The LCD backlight maintains the current highlight.

It should be understood that the above description is only one specific modification, and the embodiments of the present disclosure are not limited thereto, and may be implemented in other aspects.

4 is a schematic flowchart of a display control method according to a second modification of the present disclosure. In the third modification, the LCD backlight is used to adjust the brightness, and the fingerprint recognition area corresponds to the human body feature collection area. The image after displaying the target picture corresponds to the second image. The display control method of the second modification includes the following operations:

401: A fingerprint recognition area where a user's finger is placed on the screen is detected.

402: The fingerprint recognition sensor notifies the processor to start acquiring the fingerprint identification image.

403: The target picture is displayed in the non-fingerprint recognition area, and the alpha channel value of the target picture is predetermined. Optionally, the alpha channel value=(luminance value of the highlight-current LCD backlight brightness value)/luminance value of the highlight.

404: Does the monitoring reach the first predetermined triggering time before it completes the display? (The first predetermined triggering time indicates the timing at which the LCD backlight triggers the highlighting to achieve the display of the target picture and the synchronization of the highlights); if yes (ie, the predetermined time is reached), proceed to operation 405; if no (ie If the predetermined time has not been reached, then proceed to operation 406.

405: LCD backlight triggers highlighting.

406: The LCD backlight maintains the current brightness value.

407: The fingerprint recognition sensor acquires a fingerprint identification image.

408: LCD backlight triggers the cancellation of highlights.

409: Monitor whether the LCD backlight is reached after the second scheduled cancellation time after the cancellation of the highlight is completed? (The second predetermined revocation time indicates the timing of revoking the target picture so that the target picture display is achieved during highlighting, so as to eliminate the glare of the user and improve the comfort); if yes, proceed to operation 410. If it is otherwise proceeding to operation 411.

410: Undo the target picture and end the process.

411: The LCD backlight maintains the current highlight.

FIG. 5 is a schematic flowchart of a display control method according to a third modification of the present disclosure. In the third modification, the LCD backlight is used to adjust the brightness, and the fingerprint recognition area corresponds to the human body feature collection area. The image after displaying the target picture corresponds to the second image. The display control method of the third modification includes the following operations:

501: A fingerprint recognition area in which a user's finger is placed on the screen is detected.

502: The fingerprint recognition sensor notifies the processor to start acquiring the fingerprint identification image.

503: Start displaying the target picture in the non-fingerprint recognition area, and the alpha channel value of the target picture is predetermined, optionally, the alpha channel value=(luminance value of the highlight-current LCD backlight brightness value)/luminance value of the highlight.

504: Monitor whether the second predetermined triggering time after the completion of the display is reached? (The second predetermined triggering time indicates the timing of the LCD backlight triggering the highlighting, so as to achieve the target image display during the highlighting, so as to eliminate the glare of the user and improve the comfort); if yes (ie, arrive The predetermined time) proceeds to operation 505; if not (i.e., the predetermined time is not reached), then operation 506 is performed.

505: LCD backlight triggers highlights.

506: The LCD backlight maintains the current brightness value.

507: The fingerprint recognition sensor acquires a fingerprint recognition image.

508: LCD backlight triggers the cancellation of highlights.

509: Monitor whether the LCD backlight is reached before the first scheduled revocation time before the cancellation of the highlight is completed? (The first predetermined revocation time indicates the timing of revoking the target picture such that synchronization of the undo highlight and the undo target picture is achieved); if so, proceeds to operation 510; if otherwise, proceeds to operation 511.

510: Undo the target picture and end the process.

511: The LCD backlight maintains the current highlight.

FIG. 6 is a schematic flowchart of a display control method according to a fourth modification of the present disclosure. In the fourth modification, the LCD backlight is used to adjust the brightness, and the fingerprint recognition area corresponds to the human body feature collection area. The image after displaying the target picture corresponds to the second image. The display control method of the fourth modification includes the following operations:

601: A fingerprint recognition area where the user's finger is placed on the screen is detected.

602: The fingerprint recognition sensor notifies the processor to start acquiring the fingerprint identification image.

603: Displaying a target picture in the non-fingerprint recognition area, the alpha channel value of the target picture is predetermined, optionally, the alpha channel value=(luminance value of the highlight-current LCD backlight brightness value)/luminance value of the highlight.

604: Monitor whether it reaches the second predetermined triggering time after it completes the display? (The second predetermined triggering time indicates the timing of the LCD backlight triggering the highlighting, so as to achieve the target image display during the highlighting, so as to eliminate the glare of the user and improve the comfort); if yes (ie, arrive The predetermined time) proceeds to operation 605; if not (i.e., the predetermined time is not reached), then operation 606 is performed.

605: LCD backlight triggers highlighting.

606: The LCD backlight maintains the current brightness value.

607: The fingerprint recognition sensor acquires a fingerprint recognition image.

608: LCD backlight triggers the cancellation of highlights.

609: Monitoring whether the LCD backlight is reached after the second predetermined revocation time after the cancellation of the highlight is completed? (The second predetermined revocation time indicates the timing of revoking the target picture, so that the target picture display is performed during highlighting, so that the glare of the user is eliminated, and the comfort is improved); if yes, proceed to operation 610. If it is otherwise proceeding to operation 611.

610: Undo the target picture and end the process.

611: The LCD backlight maintains the current highlight.

FIG. 7 is a schematic flowchart of a display control method according to a fifth modification of the present disclosure. In the fifth modification, the LCD backlight is used to adjust the brightness, and the fingerprint recognition area corresponds to the human body feature collection area. The image after displaying the target picture corresponds to the second image. The display control method of the fifth modification includes the following operations:

701: Display a prompt picture on the fingerprint recognition area to prompt the user to place the finger.

702: A fingerprint recognition area in which a user's finger is placed on the screen is detected.

703: The fingerprint recognition sensor notifies the processor to start acquiring the fingerprint identification image.

704: Display a target picture in the non-fingerprint recognition area, where the alpha channel value is predetermined, optionally, the alpha channel value=(highlight brightness value-current LCD backlight brightness value)/highlight brightness value.

705: Monitor the display process so that the LCD backlight triggers highlighting while being displayed.

706: Undo the prompt picture.

707: The fingerprint recognition sensor acquires a fingerprint recognition image.

708: LCD backlight triggers the cancellation of highlights.

709: Monitoring the LCD backlight triggers the cancellation of highlights such that the undo highlights are cancelled simultaneously with the undo target image.

Those of ordinary skill in the art will appreciate that the unit and algorithm operations of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present disclosure, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the portion of the technical solution of the present disclosure that contributes in essence or to the prior art or the portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the operations of the methods described in various embodiments of the present disclosure. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above embodiments are merely exemplary embodiments of the present disclosure, and are not intended to limit the disclosure, and the scope of the disclosure is defined by the claims. A person skilled in the art can make various modifications or equivalents to the present disclosure within the spirit and scope of the disclosure, and such modifications or equivalents are also considered to be within the scope of the disclosure.

Claims

A display control method includes:

When it is detected that the human body part is placed on the human body feature collection area of the screen:

Adjusting a brightness display of the screen to switch from a first brightness value to a second brightness value, the second brightness value being higher than the first brightness value;

Adjusting a display image of at least a portion of the display area of the screen to switch from the first image to a second image capable of reducing display brightness of the at least a portion of the display area, wherein the second image has a transparency parameter.
The method of claim 1 further comprising:

Collecting human body image;

Determining whether to switch the brightness value of the screen from the second brightness value to the first brightness value according to the collection result of the human body feature image;

Determining whether to switch the display content of the display area from the second image to the first image according to the collection result of the human body feature image.
The method of claim 1 further comprising:

Obtaining the first brightness value and the second brightness value;

Transparency of the second image is determined based on the first brightness value and the second brightness value.
The method of claim 3, wherein the second image is an image having the same content as the first image.
The method according to claim 1 or 2, wherein switching of the luminance value of the screen is completed in synchronization with switching of the display image of the display area.
An electronic device comprising:

a detecting device configured to detect a human body part of the human body feature collection area on the screen:

a data processing device configured to adjust a brightness display of the screen according to a sensing signal transmitted by the detecting device to switch from a first brightness value to a second brightness value, the second brightness value being higher than the first a brightness value, and adjusting a display image of at least a portion of the display area of the screen to switch from the first image to a second image capable of reducing display brightness of the at least a portion of the display area, wherein the second image has a transparency parameter .
The electronic device according to claim 6, wherein the detecting device is a human body feature detector disposed under the screen for acquiring a human body feature image;

The data processing device is further configured to determine, according to the collection result of the human body feature image, whether to switch the brightness value of the screen from the second brightness value to the first brightness value, and according to the human body feature image The acquisition result determines whether the display content of the display area is switched from the second image to the first image.
The electronic device of claim 6, wherein the data processing device is further configured to:

Obtaining the first brightness value and the second brightness value;

Transparency of the second image is determined based on the first brightness value and the second brightness value.
The electronic device of claim 8, wherein the second image is a picture having the same content information as the first content.
The electronic device according to claim 6 or 7, wherein switching of the luminance value of the screen is completed in synchronization with switching of the display image of the display area.