BACKGROUND OF THE INVENTION

Field of the Invention

The present disclosure relates to the field of application of electronic device, in particular to a terminal and a method for adjusting the display brightness of a terminal.

Description of the Prior Art

With the development and advancement of technology, the touch display panels have been widely used in the devices that require the human-computer interaction interfaces, such as operating screens of industrial computers, tablet computers, touch screens of smart phones, and the like. When the user answers the call, if the terminal screen remains in the state of use, the terminal power consumption will be further increased, so that the terminal power is quickly exhausted, which is disadvantageous to the user's experience. Therefore, it is particularly necessary to automatically adjust the display brightness of the terminal when the user answers the call.

There are mainly the following methods for adjusting the display brightness of a terminal in the prior art:

One is to add a voice module to replace the light sensor to adjust the brightness of the terminal screen. A terminal including a microprocessor, an audio output unit, a sound sensor, and a display screen is disclosed in the application number “201610511375.3”; the audio output unit is configured for outputting a sound signal; The sound sensor is configured for sending a display adjustment instruction to the microprocessor when a reflected sound signal of the sound signal output by the audio output unit is collected; the microprocessor is configured for adjusting the brightness of the display screen when receiving the display adjustment instruction and determining that the terminal is in a call state. On the one hand, this solution requires the terminal to add additional sound sensors, increasing the terminal cost; on the other hand, the user still needs to trigger the adjustment of the display brightness by the sound, and the difference from the manual adjustment is not very large in essence, and it is not possible to automatically adjust the brightness of the display screen when the user answers the call.

The other is to adjust the brightness of the terminal by sensing the distance between the terminal and the occlusion object. A method and system for realizing volume and brightness adjustment based on proximity sensors is disclosed in the application number “201610627457.4”, the method includes: the proximity sensor in the mobile terminal acquires a distance between the occlusion object and the touch screen, and determines whether the distance value is within a preset distance range; when it is determined that the distance value is within a preset distance range, adjusting a value of the mobile terminal parameter to a parameter corresponding to the distance value according to a correspondence between the preset distance range and the mobile terminal parameter; the mobile terminal parameter include: volume, screen brightness, and flash brightness. In this solution adding the proximity sensor is needed on the terminal and will change the original structure of the terminal and increase the cost; on the other hand, there is no obvious definition for occluding objects, that is, any object that is close enough to the terminal will initiate adjustment of the brightness of the screen, which is often prone to misoperation and cannot be applied to the demand of the microphone mode when the user answers the call.

In summary, it is particularly necessary to provide a scheme that can adaptively adjust the brightness of the screen of the mobile phone without changing the original architecture of the terminal, so as to achieve power saving and user experience improvement regardless of the listening mode of the terminal.

SUMMARY OF THE INVENTION

A technical problem to be solved by the present disclosure is to provide a terminal and a method for adjusting display brightness of a terminal, so as to solve the problems that the terminal cannot adaptively adjust the screen brightness when receiving a call, resulting in problems such as large power consumption and poor user experience when the terminal answers a call.

In order to solve the above technical problem, the technical solution adopted by the present disclosure is a method for adjusting display brightness of a terminal. The method is applied to a terminal, and the terminal includes a display unit and a sensing unit. The display unit is provided with a feature recognition area, and the sensing unit is located under the feature recognition area, and is configured to capture feature information of a user. The method includes the following steps: setting the brightness configuration information in advance, the brightness configuration information including a correspondence relationship between feature information of a user and display brightness; capturing the feature information of the user, and determining whether the captured feature information matches the feature information in the brightness configuration information; if yes, adjusting the display brightness of the terminal to the display brightness corresponding to the matched feature information in the brightness configuration information; otherwise, not adjusting the display brightness of the terminal.

In some embodiment, the step of setting the brightness configuration information in advance includes: receiving a user setting instruction and displaying the feature recognition area; capturing and saving the feature information of the user during the setting process; displaying a display brightness information list, receiving a user's selection instruction for display brightness information, and establishing and saving the correspondence relationship between the selected display brightness information and the captured feature information of the user during the setting process.

In some embodiment, the feature information includes one or more of face feature information, fingerprint feature information, human ear feature information, and lip feature information.

In some embodiment, when the terminal is in a listening mode, the feature information is human ear feature information, and the human ear feature information includes ear contour information; the step of “capturing the feature information of the user, and determining whether the captured feature information matches the feature information in the brightness configuration information” includes: capturing the ear contour information of the user, and determining whether the captured ear contour information matches the ear contour information in the brightness configuration information.

In some embodiment, when the terminal is in a microphone mode, the feature information is fingerprint feature information, and the microphone mode is triggered by the user clicking a first button; the step of “capturing the feature information of the user, and determining whether the captured feature information matches the feature information in the brightness configuration information” includes: capturing the fingerprint feature information of the user while receiving the user's instruction of clicking to the first button, and determining whether the captured fingerprint feature information matches the fingerprint feature information in the brightness configuration information.

In some embodiment, the step of “determining whether the captured feature information matches the feature information in the brightness configuration information” includes: determining whether a matching degree between the captured feature information and the feature information in the brightness configuration information reaches a preset percentage, and if so, it is determined to be a match, otherwise it is determined to be a mismatch.

In some embodiment, the method further includes the step of generating a prompt message when determining that the captured feature information does not match the feature information in the brightness configuration information.

In some embodiment, the prompt message includes one or more of sound prompt message, image prompt message, light prompt message, and video prompt message.

In some embodiment, the method further includes the step of setting volume configuration information in advance; the volume configuration information includes a correspondence relationship between the feature information of the user and a volume level, after the step of “determining whether the captured feature information matches the feature information in the brightness configuration information”, the method further includes: if yes, adjusting the volume of the terminal to a volume corresponding to the feature information in the volume feature information, otherwise not adjusting the volume of the terminal.

In some embodiment, the sensing unit includes a light detection sensing layer, the display pixels of the display unit is configured to emit light with a predetermined pattern when a light source trigger signal is received by the light detection sensing layer; and the light detection sensing layer is configured to be in a light signal detection state and receive an image signal reflected by a user's feature portion to capture the user's feature information when a detection trigger signal is received.

In some embodiment, the sensing unit includes a TFT image sensing array film, the light detection sensing layer comprises an array formed by photodiodes.

In some embodiment, the light source trigger signal and the detection trigger signal are alternately switched in a preset frequency.

In some embodiment, the display unit is a display panel using active array thin film transistors for scan driving and transmitting data, and the display unit includes an AMOLED display, a liquid crystal display, a micro light emitting diode display, a quantum dot display, or an electronic ink display.

In some embodiment, the display unit is the liquid crystal display, a backlight unit is disposed under the sensing unit; and the sensing unit is disposed between the backlight unit and the liquid crystal display.

In some embodiment, the feature recognition area includes a plurality of feature recognition sub-areas, and a sensing unit is disposed corresponding to each of the feature recognition sub-areas.

In some embodiment, the terminal further includes a sensing unit control circuit, the method further including: receiving an instruction of the user for starting the feature recognition sub-area, the sensing unit control circuit turning on the sensing unit under the feature recognition sub-area, and receiving another instruction of the user for closing the feature recognition sub-area, the sensing unit control circuit turning off the sensing unit under the feature recognition sub-area.

A terminal is provided. The terminal includes a display unit and a sensing unit, a feature recognition area is disposed on the display unit, the sensing unit is located under the feature recognition area and is configured to capture feature information of a user; the terminal further includes a configuration information setting unit, a determining unit, and a processing unit; the configuration information setting unit is configured to set the brightness configuration information in advance, and the brightness configuration information includes a correspondence relationship between feature information of a user and display brightness; the sensing unit is configured to capture the feature information of the user and the determining unit is configured to determine whether the captured feature information matches the feature information in the brightness configuration information; if yes, the processing unit is configured to adjust the display brightness of the terminal to the display brightness corresponding to the matched feature information in the brightness configuration information; otherwise, the processing unit does not adjust the display brightness of the terminal.

In some embodiment, the terminal further includes an operation instruction receiving unit, “the configuration information setting unit is configured to set the brightness configuration information in advance” includes: the operation instruction receiving unit is configured to receive a setting instruction of the user and display the feature recognition area; the sensing unit is configured to capture and save the feature information of the user during the setting process; the display unit is configured to display a display brightness information list, the operation instruction receiving unit is configured to receive a user's selection instruction for display brightness information, and the processing unit is configured to establish and save the correspondence relationship between the selected display brightness information and the captured feature information of the user during the setting process.

In some embodiment, the feature information includes one or more of face feature information, fingerprint feature information, human ear feature information, and lip feature information.

In some embodiment, when the terminal is in a listening mode, the feature information is human ear feature information, and the human ear feature information includes ear contour information; “the sensing unit is configured to capture the feature information of the user and the determining unit is configured to determine whether the captured feature information matches the feature information in the brightness configuration information” includes: the sensing unit is configured to capture the ear contour information of the user, and the determining unit is configured to determine whether the captured ear contour information matches the ear contour information in the brightness configuration information.

In some embodiment, the terminal includes an operation instruction receiving unit, when the terminal is in a microphone mode, the feature information is fingerprint feature information, and the microphone mode is triggered by the user clicking a first button; “the sensing unit is configured to capture the feature information of the user and the determining unit is configured to determine whether the captured feature information matches the feature information in the brightness configuration information” includes: the operation instruction receiving unit is configured to capture the fingerprint feature information of the user while the sensing unit is configured to receive the user's instruction of clicking to the first button, and the determining unit is configured to determine whether the captured fingerprint feature information matches the fingerprint feature information in the brightness configuration information.

In some embodiment, “the determining unit is configured to determine whether the captured feature information matches the feature information in the brightness configuration information” includes: the determining unit is configured to determine whether a matching degree between the captured feature information and the feature information in the brightness configuration information reaches a preset percentage, and if so, it is determined to be a match, otherwise it is determined to be a mismatch.

In some embodiment, the processing unit is further configured to generate a prompt message when the determining unit determines that the captured feature information does not match the feature information in the brightness configuration information.

In some embodiment, the prompt message includes one or more of sound prompt message, image prompt message, light prompt message, and video prompt message.

In some embodiment, the configuration information setting unit is configured to preset volume configuration information; the volume configuration information includes a correspondence relationship between the feature information of the user and a volume level, the determining unit is configured to determine whether the captured feature information matches the feature information in the brightness configuration information”, if yes, the processing unit is configured to adjust the volume of the terminal to a volume corresponding to the matched feature information in the volume feature information, otherwise the processing unit does not adjust the volume of the terminal.

In some embodiment, the sensing unit includes a light detection sensing layer, the display pixels of the display unit is configured to emit light with a predetermined pattern when a light source trigger signal is received by the light detection sensing layer; and the light detection sensing layer is configured to be in a light signal detection state when receive an image signal reflected by a user's feature portion to capture the user's feature information when a detection trigger signal is received.

In some embodiment, the sensing unit includes a TFT image sensing array film, the light detection sensing layer comprises an array formed by photodiodes.

In some embodiment, the light source trigger signal and the detection trigger signal are alternately switched in a preset frequency.

In some embodiment, the display unit is a display panel using active array thin film transistors for scan driving and transmitting data, and the display unit includes an AMOLED display, a liquid crystal display, a micro light emitting diode display, a quantum dot display, or an electronic ink display.

In some embodiment, the display unit is the liquid crystal display, a backlight unit is disposed under the sensing unit, and the sensing unit is disposed between the backlight unit and the liquid crystal display.

In some embodiment, the feature recognition area includes a plurality of feature recognition sub-areas, and a sensing unit is disposed corresponding to each of the feature recognition sub-areas.

In some embodiment, the terminal further includes a sensing unit control circuit, the operation instruction receiving unit is configured to receive a start instruction of the user for the feature recognition sub-area, the sensing unit control circuit is configured to turn on the sensing unit under the feature recognition sub-area, and the operation instruction receiving unit is configured to receive a closing instruction of the user for the feature recognition sub-area, the sensing unit control circuit is configured to turn off the sensing unit under the feature recognition sub-area.

The advantages by adopting the above technical solutions are: by disposing a sensing unit and the feature recognition area of the display unit, when the terminal receives an incoming call, as long as the feature information of the user is captured and compared with the feature information in the brightness configuration information, if it matches, the display brightness is adjusted. Compared with the method of speech recognition, the user can adjust the screen brightness as long as the user approaches to a specific part to captures features without the need for the user to input additional speech, effectively improving the user's experience. At the same time, the sensing unit of the present disclosure is directly disposed below the display unit, and no additional sensor (such as a distance sensor) is needed to effectively reduce the overall thickness of the mobile device, so that the mobile device is thinner, and meets market demands. The adjustment of the display brightness is achieved by capturing the user's feature information for comparison, avoiding misoperation by the user and improving the accuracy of the screen brightness adjustment.

