WO2016183887A1 - Procédé et dispositif de réglage de rétroéclairage et support d'informations informatique - Google Patents

Procédé et dispositif de réglage de rétroéclairage et support d'informations informatique Download PDF

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Publication number
WO2016183887A1
WO2016183887A1 PCT/CN2015/081139 CN2015081139W WO2016183887A1 WO 2016183887 A1 WO2016183887 A1 WO 2016183887A1 CN 2015081139 W CN2015081139 W CN 2015081139W WO 2016183887 A1 WO2016183887 A1 WO 2016183887A1
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WIPO (PCT)
Prior art keywords
backlight
pupil size
ambient light
brightness
backlight brightness
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PCT/CN2015/081139
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English (en)
Chinese (zh)
Inventor
尚世同
Original Assignee
西安中兴新软件有限责任公司
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Publication of WO2016183887A1 publication Critical patent/WO2016183887A1/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
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a backlight control method, apparatus, and computer storage medium.
  • embodiments of the present invention are directed to a backlight control method, apparatus, and computer storage medium, which can flexibly adjust backlight brightness in various scenarios, and improve user comfort when viewing a screen.
  • Embodiments of the present invention provide a backlight control method, where the method includes:
  • the method before the acquiring the pupil size of the user under the current ambient light and the backlight brightness, the method further includes:
  • the backlight brightness is initially adjusted in accordance with the backlight level.
  • the judging whether the backlight adjustment is needed according to the pupil size includes:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • the method further includes:
  • the comparison table is configured to store a corresponding relationship between the ambient light, the backlight level, and the standard pupil size.
  • the determining backlight adjustment parameters includes:
  • a backlight adjustment parameter is determined based on a backlight level corresponding to the first backlight level and a current backlight brightness.
  • the method further includes:
  • the standard pupil size corresponding to the ambient light and the adjusted backlight brightness in the comparison table is updated.
  • the embodiment of the invention further provides a backlight control device, the device comprising:
  • the first obtaining unit is configured to acquire a pupil size of the user under current ambient light and backlight brightness
  • the determining unit is configured to determine, according to the pupil size, whether backlight adjustment is needed;
  • a first control unit configured to: when the determining unit determines that backlight adjustment is required, determine a backlight adjustment parameter, and adjust a backlight brightness based on the backlight adjustment parameter; and when the determining unit determines that backlight adjustment is not required, maintaining the current The backlight brightness does not change.
  • the device further includes:
  • a second acquiring unit configured to acquire ambient light data
  • a determining unit configured to: when it is detected that the current ambient light data changes with respect to the previous time ambient light data, and the change value satisfies the first preset condition, determine, according to the current ambient light data, that the current ambient light is matched Backlight level
  • the second control unit is configured to initially adjust the backlight brightness according to the backlight level.
  • the determining unit is further configured to:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • the device further includes:
  • the comparison table is configured to store a correspondence relationship between the ambient light, the backlight level, and the standard pupil size.
  • the first control unit is further configured to:
  • a backlight adjustment parameter is determined based on a backlight level corresponding to the first backlight level and a current backlight brightness.
  • the device further includes:
  • the updating unit is configured to: record a pupil size of the user after adjusting the backlight brightness; determine a difference between the pupil size and the standard pupil size corresponding to the adjusted backlight brightness, and obtain a determination result; when the determination result satisfies the second preset condition And updating a standard pupil size corresponding to the ambient light and the adjusted backlight brightness in the comparison table.
  • Embodiments of the present invention provide a computer storage medium in which a computer program is stored, the computer program for performing the backlight control method described above.
  • the backlight control method and device and the computer storage medium provided by the embodiments of the present invention acquire the pupil size of the user under the current ambient light and the backlight brightness; determine whether the backlight adjustment is needed according to the pupil size; if necessary, determine the backlight adjustment parameter, and Adjusting the backlight brightness based on the backlight adjustment parameter; otherwise, maintaining the current backlight brightness unchanged.
  • the technical solution in the embodiment of the present invention solves the problem that the current backlight adjustment mode cannot satisfy the convenience and the coexistence of the personality, and can flexibly adjust the backlight brightness in various scenarios, thereby greatly improving the user experience.
  • the technical solution of the present invention can determine the current ambient light according to the change of the user's pupil, and make the obtained ambient light data more accurate, and then automatically adjust the backlight brightness according to the more accurate ambient light data, thereby solving the problem.
  • the problem of "automatic adjustment of the rigid board and manual adjustment is cumbersome" can make the backlight adjustment most suitable for the user based on the actual situation that each user has different sensitivity to light; at the same time, the display of the electronic device can also be made.
  • the screen is in the user's most comfortable brightness, which relieves eye fatigue and protects vision, greatly improving the user experience.
  • FIG. 1 is a schematic flowchart 1 of a backlight control method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart 2 of a backlight control method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart 3 of a backlight control method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart 4 of a backlight control method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of hardware for implementing a backlight control method according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram 1 of a backlight control device according to an embodiment of the present invention.
  • FIG. 7 is a second schematic structural diagram of a backlight control apparatus according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram 3 of a backlight control device according to an embodiment of the present invention.
  • the changes of the pupil of the person under different light intensities are introduced.
  • the pupil of the person can be reduced or enlarged according to the intensity of the light.
  • the pupil of the person is reduced to reduce the amount of light collected; and when the light is dark, the pupil is enlarged.
  • the right amount of light is always allowed to enter the eye, so that the image of the object falling on the retina is clear, and the surface does not have excessive light to burn the retina.
  • the technical solution of the present invention is based on this characteristic of the human eye, and proposes a new way to optimize backlight adjustment.
  • FIG. 1 is a schematic flowchart 1 of a backlight control method according to an embodiment of the present invention, which is applied to an electronic device. As shown in FIG. 1 , the backlight control method mainly includes the following steps:
  • Step 101 Obtain the pupil size of the user under current ambient light and backlight brightness.
  • the acquiring the size of the pupil of the current ambient light and the brightness of the backlight may include:
  • the camera generally refers to a front camera of the electronic device.
  • a pupil picture of N users is collected, and a pupil size of the user is calculated based on the N user pupil pictures; wherein N is a positive integer greater than or equal to 2.
  • Step 102 Determine, according to the pupil size, whether backlight adjustment is needed; if necessary, determine a backlight adjustment parameter, and adjust backlight brightness based on the backlight adjustment parameter; otherwise, keep the current backlight brightness unchanged.
  • determining whether the backlight adjustment is needed according to the pupil size may include:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • the determining the backlight adjustment parameter may include:
  • the backlight adjustment parameter is determined according to the ratio and in conjunction with the first algorithm.
  • the first algorithm may be an adaptive algorithm.
  • the adjusting the brightness of the backlight based on the backlight adjustment parameter may include:
  • the backlight brightness when the backlight brightness is adjusted based on the backlight adjustment parameter, the backlight brightness (or backlight level) may be increased or decreased one by one based on the existing backlight brightness (or backlight level) until the adjustment amount is the Backlight adjustment parameters.
  • the method may further include:
  • the backlight brightness is initially adjusted in accordance with the backlight level.
  • the brightness of the current ambient light can be sensed in real time or periodically by the photosensitive chip.
  • the last moment may refer to the last second; when the ambient light data is periodically sensed, the last moment may refer to the previous period.
  • the first preset condition may be that the absolute value of the difference between the current ambient light data and the previous ambient light data is greater than or equal to the first threshold; wherein the first threshold may be set according to an actual situation.
  • each backlight level may be one point or a range; that is, the backlight level may correspond to only one backlight brightness value, or may correspond to multiple backlight brightness values.
  • the method may further include:
  • the comparison table is configured to store a corresponding relationship between the ambient light, the backlight level, and the standard pupil size.
  • the corresponding relationship between the ambient light, the backlight level and the standard pupil size may also exist in the form of a database.
  • the determining the backlight adjustment parameter may include:
  • a backlight adjustment parameter is determined based on a backlight level corresponding to the first backlight level and a current backlight brightness.
  • the method may further include:
  • the standard pupil size corresponding to the ambient light and the backlight brightness in the comparison table is updated.
  • the second preset condition may be that the absolute value of the difference between the pupil size and the standard pupil size corresponding to the adjusted backlight brightness is greater than a second threshold, and the second threshold may be set according to actual conditions. Set, if set to 0.01mm; or,
  • the second preset condition may be: in the scenario of the ambient light and the adjusted backlight brightness, the number of times the pupil size of the user is the size of the pupil is greater than or equal to a third threshold, and the third threshold may be based on actual conditions. Set the situation, such as set to 2 times.
  • the habit of the user when viewing the screen of the electronic device under certain ambient light may change. Therefore, in order to adjust to the brightness of the backlight suitable for the user, it is necessary to update the standard pupil size of the database (or the comparison table). information.
  • the electronic device refers to an electronic device capable of supporting backlight brightness adjustment, such as a mobile phone, a tablet computer, and the like.
  • the phone will adjust the backlight according to A, but for the user, it is necessary to adjust the backlight according to B.
  • the mobile phone adjusts the brightness according to A, and the brightness is larger than the user's eye needs, so that the glare is slightly felt at this time.
  • the size of the pupil is sampled again, and the ambient light B at this time is reversed by the size of the pupil.
  • the ambient light B that is really needed by the user's eyes is obtained, and then the backlight is adjusted by the ambient light B to achieve the most comfortable brightness for the user.
  • the backlight control method of the present invention can obtain the most comfortable brightness of the user's eyes by sampling the pupil size to obtain the ambient light B required by the user's eyes.
  • FIG. 2 is a schematic flowchart 2 of a backlight control method according to an embodiment of the present invention. The method is applied to an electronic device. As shown in FIG. 2, the backlight control method mainly includes the following steps:
  • Step 201 Acquire ambient light data.
  • the brightness of the current ambient light can be sensed in real time or periodically by the photosensitive chip.
  • Step 202 When it is detected that the current ambient light data changes with respect to the previous time ambient light data, and the change value satisfies the first preset condition, determining a backlight that matches the current ambient light based on the current ambient light data grade.
  • the last moment may refer to the last second; when the ambient light data is periodically sensed, the last moment may refer to the previous period.
  • the first preset condition may be that the absolute value of the difference between the current ambient light data and the previous ambient light data is greater than or equal to the first threshold; wherein the first threshold may be set according to an actual situation.
  • each backlight level can be one point or a range; That is to say, the backlight level may correspond to only one backlight brightness value, or may correspond to multiple backlight brightness values.
  • the database of the electronic device stores a correspondence between ambient light data and a backlight level.
  • Step 203 Initially adjust the backlight brightness according to the backlight level.
  • Step 204 Obtain the pupil size of the user under current ambient light and backlight brightness.
  • the camera generally refers to a front camera of the electronic device.
  • the pupil images of the N users are collected, and the pupil size of the user is calculated according to a preset algorithm based on the N user pupil images; wherein N is a positive integer greater than or equal to 2.
  • Step 205 Determine, according to the pupil size, whether backlight adjustment is needed; if necessary, determine backlight adjustment parameters, and adjust backlight brightness based on the backlight adjustment parameter; otherwise, keep the current backlight brightness unchanged.
  • determining whether the backlight adjustment is needed according to the pupil size may include:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • the determining the backlight adjustment parameter may include:
  • the backlight adjustment parameter is determined according to the ratio and in conjunction with the first algorithm.
  • the first algorithm may be an adaptive algorithm.
  • the adjusting the brightness of the backlight based on the backlight adjustment parameter may include:
  • the backlight brightness when the backlight brightness is adjusted based on the backlight adjustment parameter, the backlight brightness (or backlight level) may be increased or decreased one by one based on the existing backlight brightness (or backlight level) until the adjustment amount is the Backlight adjustment parameters.
  • the electronic device refers to an electronic device capable of supporting backlight brightness adjustment, such as a mobile phone, a tablet computer, and the like.
  • the ambient light data by using the technical solution in the embodiment; when detecting that the current ambient light data changes with respect to the previous time ambient light data, and the change value satisfies the first preset condition, based on the current ambient light data Determining a backlight level that matches the current ambient light; initially adjusting a backlight brightness according to the backlight level; obtaining a pupil size of the user under current ambient light and backlight brightness; determining whether backlight adjustment is needed according to the pupil size; Determining the backlight adjustment parameter, and adjusting the backlight brightness based on the backlight adjustment parameter; otherwise, maintaining the current backlight brightness unchanged; thus, solving the problem of “automatic adjustment of rigid board and manual adjustment cumbersome” in the current backlight brightness adjustment, which can be based on each
  • the user's sensitivity to different light conditions makes the backlight adjustment that is most suitable for the user, so that the display of the electronic device is at the user's most comfortable brightness, which greatly improves the user experience.
  • FIG. 3 is a schematic flowchart 3 of a backlight control method according to an embodiment of the present disclosure, which is applied to an electronic device, where the electronic device stores a database in which a correspondence relationship between ambient light, a backlight level, and a standard pupil size is stored, As shown in FIG. 3, the backlight control method mainly includes the following steps:
  • FIG. 3 is a schematic flowchart 3 of a backlight control method according to an embodiment of the present invention, which is applied to an electronic device. As shown in FIG. 3 , the backlight control method mainly includes the following steps:
  • Step 301 Acquire ambient light data.
  • the brightness of the current ambient light can be sensed in real time or periodically by the photosensitive chip.
  • Step 302 When it is detected that the current ambient light data changes with respect to the previous time ambient light data, and the change value satisfies the first preset condition, determining, according to the current ambient light data, The current ambient light matches the backlight level.
  • the first preset condition may be that the absolute value of the difference between the current ambient light data and the previous ambient light data is greater than or equal to the first threshold; wherein the first threshold may be set according to an actual situation.
  • each backlight level may be one point or a range; that is, the backlight level may correspond to only one backlight brightness value, or may correspond to multiple backlight brightness values.
  • the database of the electronic device stores a correspondence between ambient light data and a backlight level.
  • Step 303 Initially adjust the backlight brightness according to the backlight level.
  • Step 304 Acquire the pupil size of the user under current ambient light and backlight brightness.
  • the camera generally refers to a front camera of the electronic device.
  • the pupil images of the N users are collected, and the pupil size of the user is calculated according to a preset algorithm based on the N user pupil images; wherein N is a positive integer greater than or equal to 2.
  • Step 305 Determine, according to the pupil size, whether backlight adjustment is needed; if necessary, determine a backlight adjustment parameter, and adjust backlight brightness based on the backlight adjustment parameter; otherwise, keep the current backlight brightness unchanged.
  • determining whether the backlight adjustment is needed according to the pupil size may include:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • the determining the backlight adjustment parameter may include:
  • a backlight adjustment parameter is determined based on a backlight level corresponding to the first backlight level and a current backlight brightness.
  • the adjusting the brightness of the backlight based on the backlight adjustment parameter may include:
  • the backlight brightness when the backlight brightness is adjusted based on the backlight adjustment parameter, the backlight brightness (or backlight level) may be increased or decreased one by one based on the existing backlight brightness (or backlight level) until the adjustment amount is the Backlight adjustment parameters.
  • Step 306 Determine whether the database needs to be updated, and if necessary, update the database.
  • the method may further include:
  • the standard pupil size corresponding to the ambient light and the backlight brightness in the comparison table is updated.
  • the second preset condition may be that the absolute value of the difference between the pupil size and the standard pupil size corresponding to the adjusted backlight brightness is greater than a second threshold, and the second threshold may be set according to actual conditions. Set, if set to 0.01mm; or,
  • the second preset condition may be: in the scenario of the ambient light and the adjusted backlight brightness, the number of times the pupil size of the user is the size of the pupil is greater than or equal to a third threshold, and the third threshold may be based on actual conditions. Set the situation, such as set to 2 times.
  • the habit of the user when viewing the screen of the electronic device under certain ambient light may change. Therefore, in order to adjust to the brightness of the backlight suitable for the user, it is necessary to update the standard pupil size of the database (or the comparison table). information.
  • the electronic device refers to an electronic device capable of supporting backlight brightness adjustment, such as a mobile phone, a tablet computer, and the like.
  • the ambient light data by using the technical solution in the embodiment; when detecting that the current ambient light data changes with respect to the previous time ambient light data, and the change value satisfies the first preset condition, based on the current ambient light data Determining a backlight level that matches the current ambient light; initially adjusting a backlight brightness according to the backlight level; obtaining a pupil size of the user under current ambient light and backlight brightness; determining whether backlight adjustment is needed according to the pupil size; Determining the backlight adjustment parameter, and adjusting the backlight brightness based on the backlight adjustment parameter; otherwise, maintaining the current backlight brightness unchanged; determining whether the database needs to be updated, and updating the database if necessary.
  • the display of the electronic device is at the user's most comfortable brightness, which improves the user experience.
  • FIG. 4 is a schematic flow chart 4 of a backlight control method according to an embodiment of the present invention, which is applied to an electronic device, where the electronic device stores a database in which a correspondence relationship between a backlight level and a standard pupil size is recorded, as shown in FIG. 4 .
  • the backlight control method mainly includes the following steps:
  • Step 401 Obtain the pupil size of the user under the current backlight level.
  • the acquiring the pupil size of the user under the current backlight level may include:
  • the camera generally refers to a front camera of the electronic device.
  • a pupil picture of N users is collected, and a pupil size of the user is calculated based on the N user pupil pictures; wherein N is a positive integer greater than or equal to 2.
  • Step 402 Determine, according to the size of the pupil, whether backlight adjustment is needed; if necessary, The backlight adjustment parameter is determined, and the backlight level is adjusted based on the backlight adjustment parameter; otherwise, the current backlight level is maintained.
  • determining whether the backlight adjustment is needed according to the pupil size may include:
  • the pupil size is larger than the standard pupil size under the backlight level, it is determined that the backlight level needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight level, it is determined that the backlight level needs to be increased.
  • the determining the backlight adjustment parameter may include:
  • a backlight adjustment parameter is determined based on a backlight level corresponding to the first backlight level and a current backlight brightness.
  • the adjusting the backlight level based on the backlight adjustment parameter may include:
  • the backlight level when the backlight level is adjusted based on the backlight adjustment parameter, the backlight level may be increased or decreased one by one based on the existing backlight level until the adjustment amount is the backlight adjustment parameter.
  • the correspondence between the backlight level in the database and the standard pupil size can also be updated according to the user's habit. I will not repeat them here.
  • the electronic device refers to an electronic device capable of supporting backlight brightness adjustment, such as a mobile phone, a tablet computer, and the like.
  • the pupil size of the current backlight level determining whether backlight adjustment is needed according to the pupil size; determining a backlight adjustment parameter if necessary, and adjusting a backlight level based on the backlight adjustment parameter; Otherwise, keep the current backlight level The same is true; in this way, the backlight level can be determined according to the pupil size, and the backlight brightness can be adjusted according to the backlight level, thereby improving the user experience.
  • this embodiment also provides a hardware schematic diagram for implementing the backlight control method of the present invention; as shown in FIG. 5, the schematic diagram includes a main chip and a camera. Photosensitive chip, backlight chip, display; among them,
  • the main chip stores a BCM (Backlight Control Manager) database, and compares the data transmitted by the camera with the data in the BCM database through FIG. 1 or FIG. 2 or FIG. 3 or FIG.
  • the 4th backlight control method generates a control signal and transmits the control signal to the backlight chip;
  • the camera is configured to sample a pupil picture of the user and transmit the picture to the main chip, so that the main chip obtains the pupil size of the user through a certain algorithm;
  • the backlight chip is configured to adjust a backlight brightness of the display by adjusting a backlight level after receiving a control signal sent by the main chip;
  • the photosensitive chip is configured to transmit the collected ambient light data to the main chip after sensing the brightness of the current ambient light, so that the main chip obtains the current ambient light data.
  • the main chip is also responsible for sampling the backlight level B used by the user under different ambient light G, and comparing with the pupil size D at this time, obtaining a database corresponding to G, B and D one by one, this database has been in Update status, more abundant as users use it.
  • the main chip In use, first obtain the current ambient light level through the sensor chip, obtain the current appropriate backlight level from the BCM database; then, according to the current ambient light sampled by the camera and the pupil size under the backlight level, and the pupil in the database Compare the size to determine whether the current backlight brightness is appropriate. If it is not suitable, adjust the brightness of the display by controlling the backlight chip.
  • the size of the pupil changes when the human eye enters different light; therefore, when the pupil size of the user under the current ambient light and backlight brightness is obtained, the current user's sense can be estimated.
  • Actual ambient light combined with this actual ambient light, according to the BCM database Calculate the brightness of the backlight that is currently needed, and the process is repeated, and finally the appropriate backlight brightness can be obtained.
  • FIG. 6 is a first schematic structural diagram of a backlight control apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes a first acquiring unit 61, a determining unit 62, and a first control unit 63.
  • the first obtaining unit 61 is configured to acquire a pupil size of the user under current ambient light and backlight brightness
  • the determining unit 62 is configured to determine, according to the pupil size, whether backlight adjustment is needed;
  • the first control unit 63 is configured to: when the determining unit determines that backlight adjustment is needed, determine a backlight adjustment parameter, and adjust a backlight brightness based on the backlight adjustment parameter; when the determining unit determines that backlight adjustment is not required Keep the current backlight brightness unchanged.
  • the determining unit 62 is further configured to:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • FIG. 7 is a schematic structural diagram 2 of a backlight control apparatus according to an embodiment of the present invention.
  • the apparatus includes a first acquiring unit 61, a determining unit 62 and a control unit 63, a second acquiring unit 64, and a determining unit. 65, a second control unit 66; wherein
  • the second obtaining unit 64 is configured to acquire ambient light data.
  • the determining unit 65 is configured to, when detecting that the current ambient light data changes with respect to the previous time ambient light data, and the change value satisfies the first preset condition, based on the current ambient light The data determines a backlight level that matches the current ambient light;
  • the adjusting unit 66 is configured to initially adjust backlight brightness according to the backlight level
  • the first obtaining unit 61 is configured to acquire a pupil size of the user under current ambient light and backlight brightness
  • the determining unit 62 is configured to determine, according to the pupil size, whether backlight adjustment is needed;
  • the control unit 63 is configured to: when the determining unit 62 determines that backlight adjustment is needed, determine a backlight adjustment parameter, and adjust a backlight brightness based on the backlight adjustment parameter; when the determining unit 62 determines that backlight adjustment is not required Keep the current backlight brightness unchanged.
  • the determining unit 62 is further configured to:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • FIG. 8 is a schematic structural diagram of a backlight control apparatus according to an embodiment of the present invention.
  • the apparatus includes a first acquiring unit 61, a determining unit 62 and a control unit 63, a second acquiring unit 64, and a determining unit 65. , a second control unit 66, a setting unit 67, and an updating unit 68; wherein
  • the setting unit 67 is configured to preset a comparison table; wherein the comparison table is configured to store a corresponding relationship between the ambient light, the backlight level and the standard pupil size;
  • the second obtaining unit 64 is configured to acquire ambient light data.
  • the determining unit 65 is configured to, when detecting that the current ambient light data changes with respect to the previous time ambient light data, and the change value satisfies the first preset condition, based on the current ambient light The data determines a backlight level that matches the current ambient light;
  • the adjusting unit 66 is configured to initially adjust backlight brightness according to the backlight level
  • the first obtaining unit 61 is configured to acquire a pupil size of the user under current ambient light and backlight brightness
  • the determining unit 62 is configured to determine, according to the pupil size, whether backlight adjustment is needed;
  • the control unit 63 is configured to: when the determining unit 62 determines that backlight adjustment is needed, determine a backlight adjustment parameter, and adjust a backlight brightness based on the backlight adjustment parameter; when the determining unit 62 determines that backlight adjustment is not required Keep the current backlight brightness unchanged;
  • the updating unit 68 is configured to: record a pupil size of the user after adjusting the backlight brightness; determine a difference between the pupil size and the standard pupil size corresponding to the adjusted backlight brightness, and obtain a determination result; when the determination result satisfies the second When the condition is preset, the standard pupil size corresponding to the ambient light and the adjusted backlight brightness in the comparison table is updated.
  • the determining unit 62 is further configured to:
  • the pupil size is greater than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be reduced; if the pupil size is smaller than the standard pupil size under the backlight brightness, it is determined that the backlight brightness needs to be increased.
  • the first control unit 63 is further configured to:
  • a backlight adjustment parameter is determined based on a backlight level corresponding to the first backlight level and a current backlight brightness.
  • the first acquiring unit 61, the determining unit 62, and the control unit 63, The second obtaining unit 64, the determining unit 65, the second controlling unit 66, the setting unit 67, and the updating unit 68 may each be a central processing unit (CPU) in the electronic device to which the backlight control device or the backlight control device belongs.
  • CPU central processing unit
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • An embodiment of the present invention further provides an electronic device including the backlight control device shown in FIG. 6 or FIG. 7 or FIG.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing backlight control method.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or 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.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage device includes the following steps:
  • the foregoing storage medium includes: a removable storage device, a read-only memory (ROM), a magnetic disk, or an optical disk, and the like, which can store program codes.
  • the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a magnetic disk, or an optical disk.
  • the pupil size of the user in the current ambient light and the backlight brightness is obtained; determining whether the backlight adjustment is needed according to the pupil size; determining the backlight adjustment parameter if necessary, and adjusting the backlight brightness based on the backlight adjustment parameter; Otherwise, the current backlight brightness is kept unchanged; thus, the backlight brightness adjustment can be flexibly performed in various scenarios, which greatly improves the user experience.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

La présente invention concerne un procédé de réglage de rétroéclairage qui consiste à : acquérir la taille d'une pupille d'un utilisateur dans une lumière ambiante actuelle et une luminosité de rétroéclairage (101) ; et déterminer si un réglage de rétroéclairage est nécessaire en fonction de la taille de la pupille, si tel est le cas, déterminer un paramètre de réglage de rétroéclairage et régler la luminosité de rétroéclairage en fonction du paramètre de réglage de rétroéclairage, ou sinon maintenir la luminosité de rétroéclairage actuelle inchangée (102).
PCT/CN2015/081139 2015-05-18 2015-06-10 Procédé et dispositif de réglage de rétroéclairage et support d'informations informatique WO2016183887A1 (fr)

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CN107731201B (zh) * 2017-10-31 2020-05-19 武汉华星光电技术有限公司 屏幕亮度调节方法及调节装置
CN107731175B (zh) * 2017-11-08 2018-10-23 深圳航天科创智能科技有限公司 基于瞳孔半径检测的背景光调节系统
CN108010491B (zh) * 2017-11-08 2018-09-07 深圳市星王电子有限公司 一种基于瞳孔半径检测的背景光调节方法
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CN110890078B (zh) * 2019-10-16 2021-08-20 东南大学 一种基于瞳孔大小自动调节显示屏亮度的方法
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