WO2018133324A1 - Procédé et dispositif d'ajustement de luminosité de rétroéclairage, et terminal - Google Patents

Procédé et dispositif d'ajustement de luminosité de rétroéclairage, et terminal Download PDF

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Publication number
WO2018133324A1
WO2018133324A1 PCT/CN2017/089802 CN2017089802W WO2018133324A1 WO 2018133324 A1 WO2018133324 A1 WO 2018133324A1 CN 2017089802 W CN2017089802 W CN 2017089802W WO 2018133324 A1 WO2018133324 A1 WO 2018133324A1
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WO
WIPO (PCT)
Prior art keywords
backlight brightness
brightness
backlight
applicable
ambient light
Prior art date
Application number
PCT/CN2017/089802
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English (en)
Chinese (zh)
Inventor
张炼
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中兴通讯股份有限公司
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Filing date
Publication date
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Publication of WO2018133324A1 publication Critical patent/WO2018133324A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—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 by control of light from an independent source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0613—The adjustment depending on the type of the information to be displayed
    • G09G2320/062—Adjustment of illumination source parameters

Definitions

  • the present application relates to, but is not limited to, the field of terminal technologies, and in particular, to a backlight brightness adjustment method, device and terminal.
  • the user When watching a smart terminal such as a mobile phone at night, the user often turns off the system's automatic adjustment backlight brightness function, and uses manual mode to adjust the backlight brightness. Because it is night, the brightness is usually adjusted very low, even lower than the automatic adjustment backlight brightness. The lowest brightness that the function can achieve. After using the phone, you will often forget to turn on the auto-adjust backlight brightness function.
  • the related technology is automatically adjusted by the background to automatically adjust the backlight brightness function.
  • the present invention provides a backlight brightness adjustment method, apparatus and terminal for ensuring that a user can see information on a screen without changing the user's willingness to set the backlight brightness.
  • the applicable backlight brightness is determined based on the ambient light brightness
  • the backlight brightness is reset to the applicable backlight brightness.
  • the determining a suitable backlight brightness based on ambient light brightness includes:
  • the applicable minimum backlight brightness is determined based on the detected ambient light level.
  • the determining the applicable minimum backlight brightness according to the detected ambient light brightness comprises:
  • the operations performed by the method further include:
  • the backlight driver is invoked to change the backlight brightness to the applicable backlight brightness.
  • the method includes the operation performed periodically without turning on the automatic adjustment backlight brightness function.
  • the embodiment of the invention further provides a backlight brightness adjusting device, which is applied in the case that the function of automatically adjusting the backlight brightness is not turned on, the device includes:
  • Determining a module setting: determining a suitable backlight brightness based on ambient light brightness;
  • the determining module is configured to: determine whether the applicable backlight brightness is greater than the set backlight brightness; when greater than the set backlight brightness, reset the backlight brightness to the applicable backlight brightness.
  • the determining module includes:
  • the detecting unit is configured to: detect ambient light brightness
  • the minimum backlight determining unit is configured to: determine a suitable minimum backlight brightness according to the detected ambient light brightness.
  • the lowest backlight determining unit includes:
  • the preset unit is configured to: preset a correspondence between different ambient light brightness and a minimum backlight brightness;
  • the searching unit is configured to: find a minimum backlight brightness corresponding to the detected ambient light brightness based on the correspondence relationship.
  • the device further includes:
  • the driving module is configured to: after the determining module resets the backlight brightness to the applicable backlight brightness, invoking the backlight driving device to change the backlight brightness to the applicable backlight brightness.
  • the device does not turn on the function of automatically adjusting the backlight brightness. In case of periodic operation.
  • An embodiment of the present invention further provides a terminal, including an ambient light sensor, a processor, and a memory storing the processor executable instructions. When the instructions are executed by the processor, the following operations are performed:
  • the backlight brightness is reset to the applicable backlight brightness.
  • the operations performed by the processor include:
  • the backlight brightness is reset to the applicable minimum backlight brightness.
  • the terminal further includes: a backlight driver
  • the operation performed by the processor further includes: after resetting the backlight brightness to the applicable minimum backlight brightness, invoking the backlight driver to change the backlight brightness to the applicable minimum backlight brightness.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed.
  • the embodiment of the present invention has at least the following advantages:
  • the method, device and terminal for adjusting the brightness of the backlight can automatically adjust the brightness of the backlight to the backlight brightness suitable for the current ambient light through the background when the brightness setting is too low and the automatic brightness adjustment function of the system is turned off. Ensure that users can see key information on the screen in time.
  • FIG. 1 is a flow chart of a backlight brightness adjustment method according to a first embodiment of the present invention
  • step S101 of the second embodiment of the present invention is a flowchart of step S101 of the second embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a backlight brightness adjusting device according to a third embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a backlight brightness adjusting device according to a fourth embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a backlight brightness adjusting device according to a sixth embodiment of the present invention.
  • FIG. 6 is a flowchart of a backlight brightness adjustment method according to a sixth embodiment of the present invention.
  • the automatic adjustment of the backlight brightness function of the background automatic opening system changes the user setting, which violates the user's willingness to set.
  • a first embodiment of the present invention provides a backlight brightness adjustment method. As shown in FIG. 1 , the method includes at least the following steps performed without automatically turning on the backlight brightness function:
  • Step S101 determining a suitable backlight brightness based on ambient light brightness
  • Step S102 determining whether the applicable backlight brightness is greater than the set backlight brightness. When the brightness of the backlight is greater than the set backlight brightness, the backlight brightness is reset to the applicable backlight brightness.
  • the method, the operations performed include:
  • step S102 the backlight setting interface of the backlight driving device is called to change the backlight brightness of the screen to the applicable backlight brightness.
  • the method includes the above-described operations performed periodically without turning on the automatic adjustment backlight brightness function.
  • the method for adjusting the brightness of the backlight in the embodiment of the present invention can ensure that the user can automatically adjust the brightness of the backlight to the backlight brightness applied under the current ambient light when the brightness setting is too low and the automatic brightness adjustment function of the system is turned off. See the key information on the screen in time.
  • the embodiment of the present invention can ensure that the user can properly see the screen of the terminal without changing the intention of setting the brightness of the backlight before the user. If the backlight brightness set by the user can meet the user's use requirements under the current ambient light, It can still be displayed according to the brightness of the backlight previously set by the user.
  • a second embodiment of the present invention provides a backlight brightness adjustment method, including at least the following steps performed without automatically turning on the backlight brightness function:
  • Step S101 determining a suitable backlight brightness based on ambient light brightness
  • step S101 includes:
  • Step A1 detecting ambient light brightness
  • Step A2 Determine the applicable minimum backlight brightness according to the detected ambient light brightness.
  • step A2 includes:
  • Step S102 determining whether the applicable backlight brightness is greater than the set backlight brightness. When the brightness of the backlight is greater than the set backlight brightness, the backlight brightness is reset to the applicable backlight brightness.
  • the operations performed by the method further include:
  • step S102 the backlight setting interface of the backlight driving device is called to change the backlight brightness of the screen to the applicable backlight brightness.
  • the method includes the above-described operations performed periodically without turning on the automatic adjustment backlight brightness function.
  • the difference between the backlight brightness adjustment method and the first embodiment in the embodiment of the present invention may include: the lowest backlight brightness applicable to the current ambient light brightness in the embodiment; if the backlight brightness is automatically adjusted to the current ambient light through the background The lowest backlight brightness that is applied below saves system power consumption to some extent.
  • the third embodiment of the present invention provides a backlight brightness adjustment device, which is applied to the case where the backlight brightness adjustment function is not turned on.
  • the device includes:
  • determining module 100 configured to: determine a suitable backlight brightness based on ambient light brightness
  • the determining module 200 is configured to: determine whether the applicable backlight brightness is greater than the set backlight brightness; when greater than the set backlight brightness, reset the backlight brightness to the applicable backlight brightness.
  • the device further includes:
  • the driving module is configured to: after the determining module 200 resets the backlight brightness to the applicable backlight brightness, calling the backlight setting interface of the backlight driving device to change the backlight brightness of the screen to The applicable backlight brightness.
  • the device operates periodically without the automatic adjustment of the backlight brightness function turned on.
  • the backlight brightness adjusting device of the embodiment of the invention can ensure that the user can automatically adjust the backlight brightness to the backlight brightness applied under the current ambient light by setting the brightness of the backlight automatically when the brightness setting is too low and the system automatically adjusts the backlight brightness function. See the key information on the screen in time.
  • the embodiment of the present invention can ensure that the user can properly see the screen of the terminal without changing the intention of setting the brightness of the backlight before the user. If the backlight brightness set by the user can meet the user's use requirements under the current ambient light, It can still be displayed according to the brightness of the backlight previously set by the user.
  • the present embodiment provides a backlight brightness adjusting device, which is applied to the case where the function of automatically adjusting the backlight brightness is not turned on.
  • the device includes:
  • determining module 100 configured to: determine a suitable backlight brightness based on ambient light brightness
  • the determining module 100 includes:
  • the detecting unit 101 is configured to: detect ambient light brightness;
  • the minimum backlight determining unit 102 is configured to determine an applicable minimum backlight brightness according to the detected ambient light brightness.
  • the lowest backlight determining unit 102 includes:
  • the preset unit 11 is configured to: preset a correspondence between different ambient light brightness and a minimum backlight brightness;
  • the searching unit 12 is configured to: find a minimum backlight brightness corresponding to the detected ambient light brightness based on the correspondence.
  • the determining module 200 is configured to: determine whether the applicable backlight brightness is greater than the set backlight brightness; when greater than the set backlight brightness, reset the backlight brightness to the applicable backlight brightness.
  • the device further includes:
  • the driving module is configured to: after the determining module 200 resets the backlight brightness to the applicable backlight brightness, invoke the backlight setting interface of the backlight driving device to change the backlight brightness of the screen to the applicable backlight brightness.
  • the device is periodically shipped without automatically turning on the backlight brightness function. Row.
  • the difference between the backlight brightness adjustment device and the third embodiment in the embodiment of the present invention may include: the lowest backlight brightness applicable to the current ambient light brightness in the embodiment; if the backlight brightness is automatically adjusted to the current ambient light through the background The lowest backlight brightness that is applied below saves system power consumption to some extent.
  • a fifth embodiment of the present invention provides a terminal, which can be understood as a physical device, the terminal including an ambient light sensor, a processor, and a memory storing the processor-executable instructions when the instructions are executed by the processor , do the following:
  • the operations performed by the processor include:
  • the terminal further includes: a backlight driver
  • the operation performed by the processor further includes: after resetting the backlight brightness to the applicable minimum backlight brightness, invoking the backlight driver to change the backlight brightness to the applicable minimum backlight brightness.
  • the sixth embodiment of the present invention is based on the above embodiments, and an application example of an embodiment of the present invention is described with reference to FIGS. 5-6.
  • the backlight brightness adjusting device of the embodiment of the present invention may include: an ambient light sensor 101, a backlight driving 102, an ambient light detecting module 103, a minimum backlight visible brightness decision module 104, and a backlight setting module 105.
  • the functions of the ambient light detecting module 103, the lowest backlight visible brightness decision module 104, and the backlight setting module 105 of the embodiment of the present invention may be similar to those of the processor in the fifth embodiment, or may be similar to the third or fourth embodiment.
  • the ambient light sensor 101 of the present embodiment can be similar to the ambient light sensor of the fifth embodiment, and the backlight drive 102 of the present embodiment can be similar to the backlight driver of the fifth embodiment and the first embodiment. In one or two embodiments Backlight drive.
  • the ambient light detecting module 103 of the embodiment of the present invention can scan the current ambient light brightness by the ambient light sensor 101 at a fixed interval and transmit it to the lowest backlight visible brightness decision module 104; the lowest backlight visible brightness decision module 104 can Reading the bottom line table of the valve, and calculating the corresponding minimum backlight visible brightness level under the current ambient light brightness (in this embodiment, the lower the brightness level is, the corresponding brightness value is the smallest), and then reading the backlight set by the current user in the system.
  • Brightness level if the lowest backlight visible brightness level is less than or equal to the current user-set backlight brightness level, indicating that the current screen user is visible, you can wait for the next detection cycle without any processing, otherwise, the current screen user is invisible or visible.
  • the lowest backlight visible brightness level module can transmit the calculated minimum backlight visible brightness level to the backlight setting module; the backlight setting module receives the lowest backlight visible brightness level module from the lowest backlight visible brightness level module, and can receive the Minimum backlight visible brightness level as new Brightness level, the backlight driving the backlight level call set the interface to change the current screen brightness.
  • the ambient light detecting module 103 can enter the sleep state until the user turns off the system to automatically adjust the backlight function, and the ambient light detecting module 103 can enter the working state.
  • the backlight brightness adjustment method of the embodiment of the present invention may include the following steps:
  • Step 1 When the detection period is up, the ambient light detection module reads the current ambient light brightness through the brightness sensor and transmits it to the lowest backlight visible brightness decision module;
  • the second step the minimum backlight visible brightness decision module reads the bottom line table of the valve, and calculates the lowest backlight visible brightness level corresponding to the current ambient light level;
  • Table 1 is an example of a valve bottom line table that includes the lowest visible brightness level versus ambient light level.
  • Table 1 The correspondence in Table 1 is related to a specific screen, and each screen needs to re-adjust the minimum visible brightness level according to the actual brightness of the screen, so the values in the table are implemented for the present invention. For example, it is not static and can include all possible values.
  • the third step the lowest backlight visible brightness decision module, reading the backlight brightness level set by the current user in the system;
  • Step 4 If the lowest backlight visible brightness level is less than or equal to the backlight brightness level set by the current user, the current screen user is visible, and no processing is performed, and the seventh step is performed to wait for the next detection cycle;
  • Step 5 If the lowest backlight visible brightness level is greater than the current user-set backlight brightness level, indicating that the current screen user is invisible or invisible, the lowest backlight visible brightness level module passes the calculated minimum backlight visible brightness level to the backlight. Setting up the module;
  • Step 6 The backlight setting module receives a new backlight brightness level, invokes a backlight-driven backlight level setting interface, and changes the backlight brightness of the current screen.
  • Step 7 The ambient light detection module waits for the next detection cycle and jumps to the first step.
  • the user can see critical information when the brightness setting is low and the system's auto-tune backlight function is turned off.
  • the process of adjusting the brightness of the backlight of the terminal in this embodiment is the same as that of the first embodiment or the second embodiment.
  • the embodiment can use the software to add the necessary general hardware platform.
  • the way to achieve it is of course also possible through hardware.
  • the process of the embodiments of the present invention may be embodied in the form of a computer software product stored in a storage medium (such as a read-only memory (ROM)/random access memory (ROM). (RAM, Random Access Memory), a disk, and an optical disk include a plurality of instructions for causing a terminal (which may be a mobile phone or the like) to execute the process described in the embodiment of the present invention.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed.
  • the embodiment of the present invention can ensure that the user can properly see the screen of the terminal without changing the intention of setting the brightness of the backlight before the user. If the backlight brightness set by the user can meet the user's use requirements under the current ambient light, It is still displayed according to the backlight brightness that the user has previously set.
  • the related art automatically turns on the system to automatically adjust the backlight brightness function in a manner that does not save power.
  • the backlight brightness is automatically adjusted in the background to the lowest backlight brightness applicable under the current ambient light, and the system power consumption is also saved to some extent.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the method, device and terminal for adjusting the brightness of the backlight can automatically adjust the brightness of the backlight to the backlight brightness suitable for the current ambient light through the background when the brightness setting is too low and the automatic brightness adjustment function of the system is turned off. Ensure that users can see key information on the screen in time.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention a trait à un procédé d'ajustement de luminosité de rétroéclairage, comprenant la réalisation, au minimum, des opérations suivantes dans le cas où une fonction d'ajustement automatique de la luminosité de rétroéclairage est désactivée : (S101) déterminer une luminosité de rétroéclairage appropriée sur la base de la luminosité ambiante ; et (S102) déterminer si la luminosité de rétroéclairage appropriée est supérieure à la luminosité de rétroéclairage réglée, et, si tel est le cas, régler à nouveau la luminosité de rétroéclairage pour qu'elle soit la luminosité de rétroéclairage appropriée.
PCT/CN2017/089802 2017-01-22 2017-06-23 Procédé et dispositif d'ajustement de luminosité de rétroéclairage, et terminal WO2018133324A1 (fr)

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Application Number Priority Date Filing Date Title
CN201710053335.3 2017-01-22
CN201710053335.3A CN108346411A (zh) 2017-01-22 2017-01-22 一种背光亮度调节方法、装置及终端

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CN110417999B (zh) * 2019-07-26 2021-08-03 努比亚技术有限公司 屏幕亮度调节方法、移动终端及计算机可读存储介质
DE102020116652A1 (de) * 2019-10-02 2021-04-08 Marco Scheffler Elektrisches Gerät mit berührungsempfindlichem Bildschirm und Benutzeroberfläche zur Einstellung der Bildschirmhelligkeit
CN111857484B (zh) * 2020-07-28 2022-02-08 维沃移动通信有限公司 屏幕亮度调节方法、装置、电子设备及可读存储介质

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