WO2017024726A1 - 模式切换方法及装置 - Google Patents

模式切换方法及装置 Download PDF

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Publication number
WO2017024726A1
WO2017024726A1 PCT/CN2015/098958 CN2015098958W WO2017024726A1 WO 2017024726 A1 WO2017024726 A1 WO 2017024726A1 CN 2015098958 W CN2015098958 W CN 2015098958W WO 2017024726 A1 WO2017024726 A1 WO 2017024726A1
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WIPO (PCT)
Prior art keywords
intensity value
light intensity
mode
liquid crystal
crystal display
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PCT/CN2015/098958
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English (en)
French (fr)
Inventor
李国盛
刘安昱
鄢来军
Original Assignee
小米科技有限责任公司
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Publication date
Application filed by 小米科技有限责任公司 filed Critical 小米科技有限责任公司
Priority to RU2016108000A priority Critical patent/RU2638771C2/ru
Priority to JP2017533682A priority patent/JP6526814B2/ja
Priority to MX2016003218A priority patent/MX361906B/es
Priority to KR1020167004807A priority patent/KR101889624B1/ko
Publication of WO2017024726A1 publication Critical patent/WO2017024726A1/zh

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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
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • 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
    • 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
    • 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
    • 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
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a mode switching method and apparatus.
  • Mobile terminals are the most commonly used electronic devices for users, such as smart phones and tablets.
  • the display content of the mobile terminal may be very glaring due to the low brightness of the ambient light.
  • a related night mode is provided in which the user manually turns on the night mode when the ambient light level is low. This night mode will turn the backlight's brightness down to a minimum, and the UI's background color will change to black, or other dark tones.
  • the ambient light level is extremely low, the display content of the mobile terminal will still be very glaring.
  • the present disclosure provides a mode switching method and apparatus.
  • the related technical solutions are as follows:
  • a mode switching method comprising:
  • the night mode is turned on, and the night mode is a display mode in which the grayscale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • turning on the night mode includes:
  • a correspondence relationship is a correspondence between a light intensity value and a night mode level
  • the gray scale voltage in the liquid crystal display is lowered in proportion to the night mode level.
  • the method further includes:
  • the backlight brightness of the liquid crystal display is lowered.
  • reducing the backlight brightness of the liquid crystal display includes:
  • the second correspondence relationship is a correspondence between the light intensity value and the backlight brightness
  • a mode switching method comprising:
  • the night mode is a display mode for reducing the gray scale voltage in the liquid crystal display according to a predetermined ratio
  • the night mode is exited.
  • the method further includes:
  • the acquired light intensity value is not higher than the predetermined threshold, it is detected whether the acquired light intensity value is higher than the last acquired light intensity value;
  • the nighttime mode level corresponding to the acquired light intensity value is searched according to the first correspondence relationship, and the first correspondence relationship is the light intensity value and Correspondence between night mode levels;
  • the method further includes:
  • the second correspondence relationship is a correspondence between the light intensity value and the backlight brightness
  • a mode switching apparatus comprising:
  • An acquisition module configured to obtain a light intensity value of ambient light
  • the first detecting module is configured to detect whether the acquired light intensity value is lower than a predetermined threshold
  • Opening the module configured to turn on the night mode when the light intensity value is below a predetermined threshold, the night mode
  • the formula is a display mode in which the gray scale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • turning on the night mode includes:
  • the first correspondence relationship is a correspondence between the light intensity value and the night mode level
  • the gray scale voltage in the liquid crystal display is lowered in proportion to the night mode level.
  • the device further includes:
  • the second detecting module is configured to detect whether the acquired light intensity value is lower than the last acquired light intensity value
  • the adjustment module is configured to reduce the backlight brightness of the liquid crystal display when the acquired light intensity value is lower than the last acquired light intensity value.
  • reducing the backlight brightness of the liquid crystal display includes:
  • the second correspondence relationship is a correspondence between the light intensity value and the backlight brightness
  • a mode switching apparatus comprising:
  • the acquiring module is configured to obtain a light intensity value of the ambient light when the current display mode is the night mode; the night mode is a display mode for lowering the grayscale voltage in the liquid crystal display according to a predetermined ratio;
  • the first detecting module is configured to detect whether the acquired light intensity value is higher than a predetermined threshold
  • the exit module is configured to exit the night mode when the light intensity value is above a predetermined threshold.
  • exiting the night mode includes:
  • the apparatus further includes:
  • the second detecting module is configured to detect whether the acquired light intensity value is higher than the last acquired light intensity value when the light intensity value is not higher than the predetermined threshold;
  • the level setting module is configured to: when the light intensity value acquired this time is higher than the light intensity value obtained last time, search for a nighttime mode level corresponding to the light intensity value acquired this time according to the first correspondence relationship, the first A correspondence relationship is a correspondence between a light intensity value and a night mode level;
  • the level setting module further includes: increasing the gray scale voltage in the liquid crystal display according to a ratio corresponding to the night mode level.
  • the apparatus further includes:
  • the adjusting module is configured to, after exiting the night mode, query the backlight brightness corresponding to the light intensity value obtained according to the second correspondence relationship;
  • the second correspondence relationship is a correspondence between the light intensity value and the backlight brightness;
  • the adjustment module further includes adjusting the backlight of the liquid crystal display to the brightness of the found backlight.
  • a mode switching apparatus comprising:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the night mode is turned on, and the night mode is a display mode in which the gray scale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • a mode switching apparatus comprising:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the current display mode is the night mode
  • the light intensity value of the ambient light is acquired
  • the night mode is a display mode in which the grayscale voltage in the liquid crystal display is lowered according to a predetermined ratio
  • the night mode is exited.
  • the night mode By obtaining the light intensity value of the ambient light, detecting whether the acquired light intensity value is lower than a predetermined threshold. If the acquired light intensity value is lower than the predetermined threshold, the night mode is turned on, and the night mode is in the liquid crystal display.
  • the gray scale voltage is reduced in a predetermined ratio according to a predetermined ratio, and when the current display mode is the night mode, the light intensity value of the ambient light is detected to be higher than a predetermined threshold by acquiring the light intensity value of the ambient light, if the current acquisition is performed When the light intensity value is higher than the predetermined threshold, the night mode is exited; the problem that the ambient light brightness cannot be satisfied by adjusting the brightness of the backlight or the background color of the UI when the ambient light brightness is extremely low is solved; When low, it automatically switches to night mode, which reduces the brightness of the screen by lowering the grayscale voltage in the LCD.
  • FIG. 1 is a flowchart of a mode switching method according to an exemplary embodiment
  • FIG. 2A is a flowchart of another mode switching method according to an exemplary embodiment
  • Figure 2B is a flow chart of the sub-steps of step 203 of Figure 2A;
  • 2C is a flow chart of the sub-steps of step 207 of FIG. 2A;
  • FIG. 3 is a schematic structural view of an array substrate on a TFT-LCD
  • FIG. 4 is a flowchart of a mode switching method according to an exemplary embodiment
  • FIG. 5 is a flowchart of another mode switching method according to an exemplary embodiment
  • FIG. 6 is a block diagram of a mode switching apparatus according to an exemplary embodiment
  • FIG. 7 is a block diagram of another mode switching apparatus according to an exemplary embodiment.
  • FIG. 8 is a block diagram of a mode switching apparatus according to an exemplary embodiment
  • FIG. 9 is a block diagram of another mode switching apparatus according to an exemplary embodiment.
  • FIG. 10 is a block diagram of a mode switching apparatus according to an exemplary embodiment.
  • the embodiments provided by the present disclosure are exemplified by a mobile terminal.
  • the mobile terminal includes at least a light intensity sensor and a liquid crystal display.
  • the liquid crystal display includes a backlight, a TFT (Thin Film Transistor) switching element, and a liquid crystal unit. Wait.
  • the light intensity sensor is used to obtain the light intensity value of the current ambient light;
  • the liquid crystal display is used to display the output content of the mobile terminal;
  • the backlight is used to control the brightness of the liquid crystal display;
  • the TFT switching element is used to control the corresponding liquid crystal in the liquid crystal display.
  • the gray scale voltage of the unit is used to obtain the light intensity value of the current ambient light;
  • the liquid crystal display is used to display the output content of the mobile terminal;
  • the backlight is used to control the brightness of the liquid crystal display; and
  • the TFT switching element is used to control the corresponding liquid crystal in the liquid crystal display.
  • the gray scale voltage of the unit is used to obtain the light intensity value of the current
  • the display mode of the mobile terminal when the user enters a low light intensity environment from the environment of the normal light intensity value, the display mode of the mobile terminal also changes with the change of the light intensity value. Please refer to the following examples.
  • FIG. 1 is a flowchart of a mode switching method according to an exemplary embodiment. This embodiment is exemplified by applying the mode switching method to a mobile terminal including a light intensity sensor and a liquid crystal display.
  • the mode switching method may include the following steps:
  • step 101 the light intensity value of the ambient light is acquired.
  • step 102 it is detected whether the acquired light intensity value is lower than a predetermined threshold.
  • step 103 if the light intensity value is lower than the predetermined threshold, the night mode is turned on, and the night mode is a display mode in which the grayscale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • the mode switching method detects whether the acquired light intensity value is lower than a predetermined threshold by acquiring the light intensity value of the ambient light. If the light intensity value obtained this time is lower than a predetermined threshold, Turning on the night mode, which is a display mode in which the gray scale voltage in the liquid crystal display is lowered according to a predetermined ratio; solving the problem that the brightness of the backlight or the background color of the UI cannot be satisfied when the ambient light level is extremely low The problem of ambient light brightness; achieves the effect of reducing the screen brightness by reducing the gray scale voltage in the liquid crystal display when the ambient light level is extremely low.
  • FIG. 2A is a flowchart of another mode switching method according to an exemplary embodiment. The embodiment is illustrated by using the mode switching method in a mobile terminal including a light intensity sensor and a liquid crystal display.
  • the mode switching method may include the following steps:
  • step 201 the light intensity value of the ambient light is acquired.
  • the light intensity value of ambient light refers to the light intensity of the current ambient light.
  • the mobile terminal When the mobile terminal is in the normal display mode, the mobile terminal acquires the light intensity value of the current ambient light every predetermined time interval;
  • the mobile terminal acquires a light intensity value of the current ambient light through the built-in light intensity sensor
  • the manner of acquiring the light intensity value of the ambient light is not limited.
  • step 202 it is detected whether the acquired light intensity value is lower than the last acquired light intensity value.
  • the mobile terminal acquires the light intensity value of the current environment every predetermined time interval.
  • the mobile terminal compares the acquired light intensity value with the last acquired light intensity value, and detects that the acquired light intensity value is No lower than the last acquired light intensity value.
  • step 203 If it is lower than the light intensity value obtained last time, the process proceeds to step 203; if it is higher than the light intensity value obtained last time, the process proceeds to step 204.
  • step 203 if the light intensity value acquired this time is lower than the light intensity value obtained last time, the backlight brightness of the liquid crystal display is lowered.
  • This step may include the following steps, as shown in FIG. 2B:
  • step 203a according to the second correspondence, the backlight brightness corresponding to the light intensity value acquired this time is queried.
  • the second correspondence relationship refers to a correspondence relationship between the light intensity value and the backlight brightness.
  • an ambient light intensity value interval corresponds to a backlight brightness
  • different backlight brightness is obtained by dividing the ambient light intensity value into sections, that is, according to the decrease of the ambient light intensity value, the backlight brightness is also It is reduced accordingly.
  • the ambient light intensity value is from 0 to 500 lx, where lx is the unit of the light intensity lux, and the ambient light intensity value is taken as an interval every 50, and the interval of the ambient light intensity value is correspondingly Different levels of backlight brightness. Assuming that the light intensity value is lower than 50lx, the backlight backlight is reduced to the lowest backlight brightness and cannot meet the current light intensity value.
  • the corresponding relationship is shown in the following table:
  • Light intensity interval Backlight level (450-500) Ninth level backlight brightness (400-450) Eighth backlight brightness (350-400) Seventh level backlight brightness (300-350) Sixth level backlight brightness (250-300) Fifth level backlight brightness (200-250) Fourth level backlight brightness (150-200) Third level backlight brightness (100-150) Second level backlight brightness (50-100) First level backlight brightness
  • the level correspondence relationship between the light intensity value interval of the ambient light and the backlight brightness level is referred to as a second correspondence relationship. If the current ambient light intensity value is 75, it can be seen from the corresponding relationship in Table 1. At this time, the backlight brightness of the mobile terminal is at the first level. The lower the level of backlight brightness, the lower the brightness; the higher the level of the back Brightness, the higher the brightness.
  • step 203b the backlight of the liquid crystal display is adjusted to the found backlight brightness.
  • the backlight of the liquid crystal display is adjusted to the backlight brightness corresponding to the light intensity value obtained this time.
  • step 204 if the light intensity value obtained this time is higher than the light intensity value obtained last time, the backlight brightness of the liquid crystal display is raised.
  • the lifting process can also be upgraded using the method illustrated in Figure 2B.
  • step 205 it is detected whether the acquired light intensity value is lower than a predetermined threshold.
  • the terminal After reducing the brightness of the backlight, the terminal also detects whether the acquired light intensity value is lower than a predetermined threshold.
  • the predetermined threshold is the empirical value that the developer has repeatedly tested.
  • the empirical value may be selected as the light intensity value when the minimum brightness of the backlight cannot satisfy the intensity value of the ambient light.
  • step 206 If the light intensity value is not lower than the predetermined threshold, the process proceeds to step 206; if the light intensity value is lower than the predetermined threshold, the process proceeds to step 207.
  • step 206 if the light intensity value is not lower than the predetermined threshold, the normal display mode is maintained.
  • the brightness of the backlight is lowered to adapt to the brightness of the current light intensity value.
  • step 207 if the light intensity value is below a predetermined threshold, the night mode is turned on.
  • the night mode is turned on
  • the brightness of the backlight is reduced to adapt to the brightness of the current light intensity value.
  • This step may include the following steps, as shown in FIG. 2C:
  • step 207a according to the first correspondence, the night mode level corresponding to the light intensity value acquired this time is searched for.
  • the first correspondence relationship refers to a correspondence relationship between the light intensity value of the ambient light and the night mode level.
  • an ambient light intensity value interval corresponds to a night mode level
  • different nighttime mode levels are obtained by dividing the ambient light intensity values into sections, that is, according to the decrease of the ambient light intensity value, the night mode. The higher the level.
  • the minimum brightness of the backlight can not meet the current light intensity value.
  • the predetermined threshold is 50lx
  • the ambient light intensity value is taken as every 10th.
  • the interval that is, there are five intervals, and the interval of the light intensity value of the ambient light corresponds to the night mode level; the level correspondence relationship between the light intensity value interval of the ambient light and the night mode level is referred to as the first correspondence relationship.
  • the specific correspondence is shown in the following table:
  • Light intensity interval Night mode level (40-50) First level (30-40) second level (20-30) Third level (10-20) Fourth level (0-10) Fifth level
  • the mobile terminal is in the night mode and the night mode level is in the third level.
  • the light intensity values and the corresponding backlight levels and the corresponding night mode levels in Tables 1 and 2 in this embodiment are for illustrative purposes only, and the corresponding relationship between the two is not specifically limited.
  • step 207b the gray scale voltage in the liquid crystal display is lowered in proportion to the night mode level.
  • the gray scale voltage in the liquid crystal display refers to the drain electrode voltage of each liquid crystal display unit connected to the data line in the data driving chip.
  • FIG. 3 is a schematic view showing the structure of an array substrate on a TFT-LCD. It includes a liquid crystal pixel electrode 1 arranged in a matrix form, a data line 2 and a scan line 3 disposed between the rows and columns of the liquid crystal pixel electrode 1, the data line 2 is connected to the data driving chip 4, and the scanning line 3 is connected to the scan driving chip 5. Generally, one data line 2 is connected to control one column of liquid crystal pixel electrodes 1, and one scanning line 3 is connected to control one row of liquid crystal pixel electrodes 1.
  • the active electrode 6 is connected to each of the liquid crystal pixel electrodes 1, and a drain electrode 7 is provided corresponding to each of the source electrodes 6, and the drain electrode 7 is connected to the corresponding data line 2 under each pair of the source electrode 6 and the drain electrode 7.
  • a gate 8 is provided, and the gate is connected to the corresponding scan line 3.
  • the source electrode 6, the drain electrode 7, and the gate electrode 8 constitute a TFT switching element.
  • the data line 2 is used to transfer the video data signal in the data driving chip 4 to the drain electrode 7 of the TFT switching element, thereby controlling the voltage of the liquid crystal pixel electrode.
  • the data driving chip 4 transmits the video data signal to the drain electrode 7 through the data line 2, and the scan driving chip 5 controls the scanning line 3 to be turned on line by line, thereby According to the driving chip 4, the corresponding data voltage is stored on the pixel electrode 1, and gray scale voltages of respective levels are formed to realize image display of each frame.
  • the gray scale voltage in the liquid crystal display corresponds to the drain electrode voltage in the TFT-LCD array substrate, that is, the mobile terminal changes the gray scale voltage in the liquid crystal display by changing the drain electrode voltage in the TFT-LCD array substrate.
  • the gray scale voltage has a predetermined correspondence relationship, for example, the gray scale 255 corresponds to the gray scale voltage A, and the gray scale 215 corresponds to the gray scale voltage B, and the correspondence relationship may be a curve.
  • the night mode in this embodiment is implemented by reducing the gray scale voltage corresponding to each gray scale by a predetermined ratio. For example, if the predetermined ratio is 85%, in the night mode, the gray scale voltage corresponding to the gray scale 255 is A*85%, and the gray scale 215 corresponds to the gray scale voltage B*85%.
  • the night mode level is achieved by lowering the gray scale voltage in the liquid crystal display by a different predetermined ratio, that is, there is a correspondence between the night mode level and a predetermined ratio when the gray scale voltage in the liquid crystal display is lowered.
  • the mobile terminal changes the grayscale voltage in the liquid crystal display by a predetermined ratio according to the night mode level, thereby realizing a nighttime mode level corresponding to the current ambient light intensity value.
  • the correspondence between the night mode level and the predetermined ratio is as follows:
  • the light intensity value of the current environment corresponds to the night mode level is the third level.
  • the night mode level is realized by changing the gray scale voltage in the liquid crystal display. That is, the third level night mode is realized by changing the gray scale voltage in the liquid crystal display to 65% of the normal gray scale voltage.
  • the correspondence between the nighttime mode level and the predetermined ratio in Table 3 is for illustrative purposes only, and the correspondence between the two is not limited in this embodiment.
  • the night mode provided in this embodiment may further include adjusting the brightness of the backlight to a minimum or changing the background color of the UI to black, or Other processing operations such as the color of other dark tones.
  • the display brightness of the liquid crystal display can be further reduced if the brightness of the backlight is adjusted to a minimum and the light intensity value of the current ambient light cannot be satisfied.
  • the mode switching method detects whether the light intensity value obtained this time is lower than the light intensity value obtained last time by acquiring the light intensity value of the ambient light, and if the light intensity value obtained this time is obtained. If the light intensity value of the liquid crystal display is lower than the predetermined threshold, if the light intensity value obtained this time is lower than the predetermined threshold, the night mode is turned on.
  • the night mode is a display mode in which the gray scale voltage in the liquid crystal display is lowered according to a predetermined ratio; and the ambient light brightness cannot be satisfied by adjusting the brightness of the backlight or the background color of the UI when the ambient light level is extremely low. The problem is achieved by reducing the grayscale voltage in the liquid crystal display to reduce the brightness of the screen.
  • FIG. 4 is a flowchart of a mode switching method according to an exemplary embodiment, where the mode switching method may include the following steps:
  • step 401 when the current display mode is the night mode, the light intensity value of the ambient light is acquired, and the night mode is a display mode in which the grayscale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • step 402 it is detected whether the acquired light intensity value is higher than a predetermined threshold.
  • step 403 if the light intensity value is above a predetermined threshold, the night mode is exited.
  • the mode switching method detects whether the acquired light intensity value is higher than a predetermined threshold by acquiring the light intensity value of the ambient light when the current display mode is the night mode. If the light intensity value is higher than the predetermined threshold, the night mode is exited; the problem that the mobile terminal is inoperable due to the increase of the ambient light intensity value when the current display mode is the night mode is solved; The grayscale voltage in the screen and the brightness of the backlight are used to increase the brightness of the screen.
  • FIG. 5 is a flowchart of another mode switching method according to an exemplary embodiment, where the mode switching method may include the following steps:
  • step 501 when the current display mode is the night mode, the light intensity value of the ambient light is acquired.
  • the night mode refers to a display mode in which the gray scale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • the light intensity value of the ambient light refers to the light intensity in the current environment, and the mobile terminal acquires the light intensity value of the current ambient light every predetermined time interval, so that it is convenient to detect the change of the ambient light.
  • step 502 it is detected whether the acquired light intensity value is higher than a predetermined threshold.
  • the predetermined threshold is an empirical value of the mobile terminal after multiple detections, and the empirical value may be a light intensity value when the minimum brightness of the backlight cannot satisfy the light intensity value of the ambient light.
  • step 503 if the acquired light intensity value is not higher than the predetermined threshold, it is detected whether the acquired light intensity value is higher than the last acquired light intensity value.
  • the light intensity value obtained this time is compared with the light intensity value obtained last time, and it is detected whether the light intensity value obtained this time is higher than the light light acquired last time. Strong value.
  • step 504 if the light intensity value acquired this time is higher than the light intensity value obtained last time, the night mode level corresponding to the light intensity value acquired this time is searched according to the first correspondence relationship.
  • the first correspondence relationship refers to a correspondence relationship between the light intensity value of the ambient light and the night mode level.
  • an ambient light intensity value interval corresponds to a night mode level
  • different nighttime mode levels are obtained by dividing the ambient light intensity values into sections, that is, according to the decrease of the ambient light intensity value, the night mode. The higher the level.
  • the current night mode is at the third level, and if the acquired light intensity value belongs to the second interval, the current night mode is promoted to the second level.
  • step 505 the gray scale voltage in the liquid crystal display is raised in proportion to the night mode level.
  • the gray scale voltage in the liquid crystal display refers to the drain electrode voltage of each liquid crystal display unit connected to the data line in the data driving chip.
  • the grayscale voltage in the liquid crystal display is from the third level.
  • the corresponding 65% of the normal grayscale voltage is increased to 75% of the normal grayscale voltage.
  • step 506 if the acquired light intensity value is higher than the predetermined threshold, the night mode is exited.
  • the mobile terminal exiting the night mode includes: restoring the grayscale voltage in the liquid crystal display to a normal grayscale voltage.
  • the drain electrode voltage connected to each of the liquid crystal display unit and the data line in the data driving chip is restored to a normal voltage state.
  • step 507 after exiting the night mode, according to the second correspondence, the backlight brightness corresponding to the light intensity value acquired this time is queried.
  • the second correspondence relationship refers to a correspondence relationship between the light intensity value and the backlight brightness.
  • an ambient light intensity value interval corresponds to a backlight brightness
  • different backlight brightness is obtained by dividing the ambient light intensity value into sections, that is, according to the enhancement of the ambient light intensity value, the backlight brightness is also With it.
  • step 203a The correspondence between the light intensity value and the brightness of the backlight is shown in Table 1. For related description, please refer to step 203a.
  • step 508 the backlight of the liquid crystal display is adjusted to the brightness of the found backlight.
  • the backlight of the liquid crystal display is adjusted to the backlight brightness corresponding to the light intensity value obtained this time.
  • the mode switching method detects whether the acquired light intensity value is higher than a predetermined threshold by acquiring the light intensity value of the ambient light when the current display mode is the night mode. If the light intensity value is not higher than the predetermined threshold, it is detected whether the light intensity value obtained this time is higher than the light intensity value obtained last time, and if the light intensity value obtained this time is higher than the light intensity value obtained last time, the search is performed.
  • the night mode level corresponding to the acquired light intensity value if the acquired light intensity value is higher than the predetermined threshold, the night mode is exited, and the gray scale voltage in the liquid crystal display is restored to the normal gray scale voltage, and Adjusting the backlight of the liquid crystal display to the brightness of the found backlight; solving the problem that the mobile terminal cannot operate due to the increase of the light intensity value of the ambient light when the current display mode is the night mode;
  • the grayscale voltage in the display and the brightness of the backlight are used to increase the brightness of the screen.
  • FIG. 6 is a block diagram of a mode switching apparatus, which may be implemented as all or part of a mobile terminal by software, hardware, or a combination of both, according to an exemplary embodiment.
  • the mode switching device can include:
  • the obtaining module 601 is configured to acquire a light intensity value of the ambient light.
  • the first detecting module 602 is configured to detect whether the acquired light intensity value is lower than a predetermined threshold.
  • the opening module 603 is configured to turn on the night mode when the light intensity value is lower than a predetermined threshold, and the night mode is a display mode in which the grayscale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • the mode switching device detects whether the light intensity value obtained this time is lower than a predetermined threshold by acquiring the light intensity value of the ambient light. If the light intensity value obtained this time is lower than a predetermined threshold, Turning on the night mode, which is a display mode in which the gray scale voltage in the liquid crystal display is lowered according to a predetermined ratio; solving the problem that the brightness of the backlight or the background color of the UI cannot be satisfied when the ambient light level is extremely low The problem of ambient light brightness; the effect of reducing the screen brightness by reducing the gray scale voltage in the liquid crystal display is achieved.
  • FIG. 7 is a block diagram of another mode switching apparatus, which may be implemented as all or part of a mobile terminal by software, hardware, or a combination of both, according to an exemplary embodiment.
  • the mode switching device can include:
  • the obtaining module 701 is configured to acquire a light intensity value of the ambient light.
  • the second detecting module 702 is configured to detect whether the acquired light intensity value is lower than the last acquired light intensity value.
  • the adjusting module 703 is configured to reduce the backlight brightness of the liquid crystal display when the light intensity value acquired this time is lower than the light intensity value obtained last time.
  • the first search module 703a is configured to query, according to the second correspondence, the backlight brightness corresponding to the light intensity value acquired this time;
  • the second correspondence relationship refers to a correspondence relationship between the light intensity value and the backlight brightness
  • the first adjustment module 703b is configured to adjust the backlight of the liquid crystal display to the found backlight brightness.
  • the first detecting module 704 is configured to detect whether the acquired light intensity value is lower than a predetermined threshold.
  • the opening module 705 is configured to turn on the night mode when the acquired light intensity value is lower than a predetermined threshold.
  • the night mode refers to a display mode in which the gray scale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • the second search module 705a is configured to search for a night mode level corresponding to the light intensity value acquired this time according to the first correspondence relationship;
  • the first correspondence relationship refers to a correspondence relationship between the light intensity value and the night mode level
  • the second adjustment module 705b is configured to reduce the gray scale voltage in the liquid crystal display according to a ratio corresponding to the night mode level.
  • the mode switching device detects whether the light intensity value obtained this time is lower than the light intensity value obtained last time by acquiring the light intensity value of the ambient light, and if the light intensity value obtained this time is obtained. If the light intensity value of the liquid crystal display is lower than the predetermined threshold, if the light intensity value obtained this time is lower than the predetermined threshold, the night mode is turned on.
  • the night mode is a display mode in which the gray scale voltage in the liquid crystal display is lowered according to a predetermined ratio; and the ambient light brightness cannot be satisfied by adjusting the brightness of the backlight or the background color of the UI when the ambient light level is extremely low. The problem is achieved by reducing the grayscale voltage in the liquid crystal display to reduce the brightness of the screen.
  • FIG. 8 is a block diagram of a mode switching apparatus, which may be implemented as all or part of a mobile terminal by software, hardware, or a combination of both, according to an exemplary embodiment.
  • the mode switching device can include:
  • the obtaining module 801 is configured to acquire a light intensity value of the ambient light when the current display mode is the night mode.
  • the night mode refers to a display mode in which the gray scale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • the first detecting module 802 is configured to detect whether the acquired light intensity value is higher than a predetermined threshold.
  • the exit module 803 is configured to exit the night mode when the light intensity value is above a predetermined threshold.
  • the mode switching device detects whether the current light intensity value is higher than a predetermined threshold by acquiring the light intensity value of the ambient light when the current display mode is the night mode. If the light intensity value is higher than the predetermined threshold, the night mode is exited; the problem that the mobile terminal is inoperable due to the increase of the ambient light intensity value when the current display mode is the night mode is solved; The grayscale voltage in the screen and the brightness of the backlight are used to increase the brightness of the screen.
  • FIG. 9 is a block diagram of another mode switching apparatus according to an exemplary embodiment, the mode is cut
  • the changing device can be implemented as all or part of the mobile terminal by software, hardware or a combination of both.
  • the mode switching device can include:
  • the obtaining module 901 is configured to acquire a light intensity value of the ambient light when the current display mode is the night mode.
  • the night mode refers to a display mode in which the gray scale voltage in the liquid crystal display is lowered by a predetermined ratio.
  • the first detecting module 902 is configured to detect whether the acquired light intensity value is higher than a predetermined threshold.
  • the second detecting module 903 is configured to detect whether the acquired light intensity value is higher than the last acquired light intensity value when the light intensity value is not higher than the predetermined threshold.
  • the first search module 904 is configured to search for the night mode level corresponding to the light intensity value acquired this time according to the first correspondence relationship when the light intensity value acquired this time is higher than the light intensity value acquired last time.
  • the first correspondence relationship refers to a correspondence relationship between the light intensity value and the night mode level
  • the first adjustment module 905 is configured to increase the grayscale voltage in the liquid crystal display according to a ratio corresponding to the night mode level.
  • the exit module 906 is configured to exit the night mode when the light intensity value is above a predetermined threshold.
  • the second adjustment module 906a is configured to restore the gray scale voltage in the liquid crystal display to a normal gray scale voltage.
  • the second search module 907 is configured to, after exiting the night mode, search for the backlight brightness corresponding to the light intensity value acquired this time according to the second correspondence.
  • the second correspondence relationship refers to a correspondence relationship between the light intensity value and the backlight brightness
  • the adjustment module 908 is configured to adjust the backlight of the liquid crystal display to the found backlight brightness.
  • the mode switching device detects whether the current light intensity value is higher than a predetermined threshold by acquiring the light intensity value of the ambient light when the current display mode is the night mode. If the light intensity value is not higher than the predetermined threshold, it is detected whether the light intensity value obtained this time is higher than the light intensity value obtained last time, and if the light intensity value obtained this time is higher than the light intensity value obtained last time, the search is performed.
  • the night mode level corresponding to the acquired light intensity value if the acquired light intensity value is higher than the predetermined threshold, the night mode is exited, and the gray scale voltage in the liquid crystal display is restored to the normal gray scale voltage, and Adjust the backlight of the LCD screen to the brightness of the found backlight; solve the problem when the current display mode is night mode
  • the problem that the light intensity of the ambient light rises makes the mobile terminal inoperable; the effect of improving the brightness of the screen is achieved by increasing the grayscale voltage in the night display and the brightness of the backlight.
  • FIG. 10 is a block diagram of a mode switching apparatus according to an exemplary embodiment.
  • device 1000 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • apparatus 1000 can include one or more of the following components: processing component 1002, memory 1004, power component 1006, multimedia component 1008, audio component 1010, input/output (I/O) interface 1012, sensor component 1014, and Communication component 1016.
  • Processing component 1002 typically controls the overall operation of device 1000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 1002 can include one or more processors 1018 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 1002 can include one or more modules to facilitate interaction between component 1002 and other components.
  • processing component 1002 can include a multimedia module to facilitate interaction between multimedia component 1008 and processing component 1002.
  • the memory 1004 is configured to store various types of data to support operation at the device 1000. Examples of such data include instructions for any application or method operating on device 1000, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 1004 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk
  • Optical Disk Optical Disk
  • Power component 1006 provides power to various components of device 1000.
  • Power component 1006 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 1000.
  • the multimedia component 1008 includes a screen between the device 1000 and the user that provides an output interface.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can sense not only the boundary of the touch or the sliding action but also the touch or slide operation Relevant duration and pressure.
  • the multimedia component 1008 includes a front camera and/or a rear camera. When the device 1000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 1010 is configured to output and/or input an audio signal.
  • the audio component 1010 includes a microphone (MIC) that is configured to receive an external audio signal when the device 1000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 1004 or transmitted via communication component 1016.
  • the audio component 1010 also includes a speaker for outputting an audio signal.
  • the I/O interface 1012 provides an interface between the processing component 1002 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor assembly 1014 includes one or more sensors for providing device 1000 with various aspects of state assessment.
  • the sensor assembly 1014 can detect an open/closed state of the device 1000, the relative positioning of the components, such as a display and a keypad of the device 1000, and the sensor assembly 1014 can also detect a change in position of a component of the device 1000 or device 1000, the user The presence or absence of contact with device 1000, device 1000 orientation or acceleration/deceleration and temperature variation of device 1000.
  • Sensor assembly 1014 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 1014 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 1016 is configured to facilitate wired or wireless communication between device 1000 and other devices.
  • the device 1000 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • communication component 1016 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • communication component 1016 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 1000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic A device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above mode switching method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLD programmable logic A device
  • FPGA field programmable gate array
  • controller microcontroller, microprocessor, or other electronic component implementation for performing the above mode switching method.
  • non-transitory computer readable storage medium comprising instructions, such as a memory 1004 comprising instructions executable by processor 1018 of apparatus 1000 to perform the mode switching method described above.
  • the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

Abstract

本公开揭示了一种模式切换方法及装置，属于显示技术领域。所述模式切换方法包括：通过获取环境光的光强值，检测本次获取的光强值是否低于预定门限，若本次获取的光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式，同时在当前显示模式为夜间模式时，通过获取环境光的光强值，检测本次获取的光强值是否高于预定门限，若本次获取的光强值高于预定门限，则退出夜间模式；解决了在环境光亮度极低时，通过调节背光灯的亮度或者UI的背景颜色无法满足环境光亮度的问题；达到了在环境光亮度极低时，自动切换成夜间模式，该夜间模式通过降低液晶显示屏中的灰阶电压来实现降低屏幕亮度的效果。

Description

模式切换方法及装置
本申请基于申请号为201510497885.5、申请日为2015.08.13的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及显示技术领域，特别涉及一种模式切换方法及装置。
背景技术
移动终端是用户最常用的电子设备，比如智能手机、平板电脑等。
在夜晚使用移动终端时，由于环境光亮度较低，移动终端的显示内容会非常刺眼。相关技术中提供了一种夜间模式，在环境光亮度较低时，用户手动开启夜间模式。该夜间模式会将背光灯的亮度调低至最低，UI的背景颜色改为黑色，或者其它暗色调的颜色。但如果环境光亮度极低时，移动终端的显示内容依然会很刺眼。
发明内容
为了解决在环境光亮度极低时，通过调节背光灯的亮度或者UI的背景颜色无法满足环境光亮度的问题，本公开提供一种模式切换方法及装置。相关的技术方案如下：
根据本公开实施例的第一方面，提供一种模式切换方法，该方法包括：
获取环境光的光强值；
检测本次获取的光强值是否低于预定门限；
若光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
在一个可选的实施例中，开启夜间模式包括：
根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级；该第 一对应关系是光强值与夜间模式等级之间的对应关系；
将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行降低。
在一个可选的实施例中，该方法还包括：
检测本次获取的光强值是否低于上一次获取的光强值；
若本次获取的光强值低于上一次获取的光强值，则降低液晶显示屏的背光亮度。
在一个可选的实施例中，降低液晶显示屏的背光亮度，包括：
根据第二对应关系，查询与本次获取的光强值对应的背光亮度；该第二对应关系是光强值与背光亮度之间的对应关系；
将液晶显示屏的背光灯调整至查找出的背光亮度。
根据本公开实施例的第二方面，提供了一种模式切换方法，该方法包括：
在当前显示模式为夜间模式时，获取环境光的光强值；该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；
检测本次获取的光强值是否高于预定门限；
若光强值高于预定门限，则退出夜间模式。
在一个可选的实施例中，该方法还包括：
若本次获取的光强值不高于预定门限，则检测本次获取的光强值是否高于上一次获取的光强值；
若本次获取的光强值高于上一次获取的光强值，则根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级，该第一对应关系是光强值与夜间模式等级之间的对应关系；
将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行提升。
在一个可选的实施例中，该方法还包括：
在退出夜间模式后，根据第二对应关系，查询与本次获取的光强值对应的背光亮度；该第二对应关系是光强值与背光亮度之间的对应关系；
将液晶显示屏的背光灯调整至查找出的背光亮度。
根据本公开实施例的第三方面，提供了一种模式切换装置，该装置包括：
获取模块，被配置为获取环境光的光强值；
第一检测模块，被配置为检测本次获取的光强值是否低于预定门限；
开启模块，被配置为在光强值低于预定门限时，开启夜间模式，该夜间模 式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
在一个可选的实施例中，开启夜间模式包括：
根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级；该第一对应关系是光强值与夜间模式等级之间的对应关系；
将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行降低。
在一个可选的实施例中，该装置，还包括：
第二检测模块，被配置为检测本次获取的光强值是否低于上一次获取的光强值；
调节模块，被配置为在本次获取的光强值低于上一次获取的光强值时，降低液晶显示屏的背光亮度。
在一个可选的实施例中，降低液晶显示屏的背光亮度，包括：
根据第二对应关系，查询与本次获取的光强值对应的背光亮度；该第二对应关系是光强值与背光亮度之间的对应关系；
将液晶显示屏的背光灯调整至查找出的背光亮度。
根据本公开实施例的第四方面，提供了一种模式切换装置，该装置包括：
获取模块，被配置为在当前显示模式为夜间模式时，获取环境光的光强值；该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；
第一检测模块，被配置为检测本次获取的光强值是否高于预定门限；
退出模块，被配置为在光强值高于预定门限时，退出夜间模式。
在一个可选的实施例中，退出夜间模式，包括：
将液晶显示屏中的灰阶电压恢复为正常的灰阶电压。
在一个可选的实施例中，该装置还包括：
第二检测模块，被配置为在光强值不高于预定门限时，检测本次获取的光强值是否高于上一次获取的光强值；
等级设定模块，被配置为在本次获取的光强值高于上一次获取的光强值时，根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级，该第一对应关系是光强值与夜间模式等级之间的对应关系；
该等级设定模块还包括，将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行提升。
在一个可选的实施例中，该装置还包括：
调节模块，被配置为在退出夜间模式后，根据第二对应关系，查询与本次获取的光强值对应的背光亮度；该第二对应关系是光强值与背光亮度之间的对应关系；
该调节模块还包括，为将液晶显示屏的背光灯调整至查找出的背光亮度。
根据本公开实施例的第四方面，提供了一种模式切换装置，该装置包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，处理器被配置为：
获取环境光的光强值；
检测本次获取的光强值是否低于预定门限；
若光强值低于预定门限，则开启夜间模式，夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
根据本公开实施例的第五方面，提供了一种模式切换装置，该装置包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，处理器被配置为：
在当前显示模式为夜间模式时，获取环境光的光强值；夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；
检测本次获取的光强值是否高于预定门限；
若光强值高于预定门限，则退出夜间模式。
本公开的实施例提供的技术方案可以包括以下有益效果：
通过获取环境光的光强值，检测本次获取的光强值是否低于预定门限，若本次获取的光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式，同时在当前显示模式为夜间模式时，通过获取环境光的光强值，检测本次获取的光强值是否高于预定门限，若本次获取的光强值高于预定门限，则退出夜间模式；解决了在环境光亮度极低时，通过调节背光灯的亮度或者UI的背景颜色无法满足环境光亮度的问题；达到了在环境光亮度极低时，自动切换成夜间模式，该夜间模式通过降低液晶显示屏中的灰阶电压来实现降低屏幕亮度的效果。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能 限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并于说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种模式切换方法的流程图；
图2A是根据一示例性实施例示出的另一种模式切换方法的流程图；
图2B是图2A中步骤203的子步骤的流程图；
图2C是图2A中步骤207的子步骤的流程图；
图3是一种TFT-LCD上的阵列基板结构示意图；
图4是根据一示例性实施例示出的一种模式切换方法的流程图；
图5是根据一示例性实施例示出的另一种模式切换方法的流程图；
图6是根据一示例性实施例示出的一种模式切换装置的框图；
图7是根据一示例性实施例示出的另一种模式切换装置的框图；
图8是根据一示例性实施例示出的一种模式切换装置的框图；
图9是根据一示例性实施例示出的另一种模式切换装置的框图；
图10是根据一示例性实施例示出的一种模式切换装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开提供的实施例均以移动终端举例说明，该移动终端至少包括有光强传感器和液晶显示屏，液晶显示屏中包括有背光灯、TFT(Thin Film Transistor，薄膜晶体管)开关元件、液晶单元等。光强传感器用于获取当前环境光的光强值；液晶显示屏用于显示移动终端的输出内容；背光灯用于控制液晶显示屏的亮度；TFT开关元件用于控制液晶显示屏中对应的液晶单元的灰阶电压。
若移动终端处于正常显示模式下，当使用者从正常光强值的环境进入较低光强值的环境中，移动终端的显示模式也随光强值的变化而发生变化。请参考如下实施例。
图1为根据一示例性实施例示出的一种模式切换方法的流程图。本实施例以该模式切换方法应用于包含有光强传感器和液晶显示屏的移动终端中来举例说明。该模式切换方法可以包括如下步骤：
在步骤101中，获取环境光的光强值。
在步骤102中，检测本次获取的光强值是否低于预定门限。
在步骤103中，若光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
综上所述，本实施例提供的模式切换方法，通过获取环境光的光强值，检测本次获取的光强值是否低于预定门限，若本次获取的光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；解决了在环境光亮度极低时，通过调节背光灯的亮度或者UI的背景颜色无法满足环境光亮度的问题；达到了在环境光亮度极低时，通过降低液晶显示屏中的灰阶电压来实现降低屏幕亮度的效果。
图2A为根据一示例性实施例示出的另一种模式切换方法的流程图，本实施例以该模式切换方法应用于包含有光强传感器和液晶显示屏的移动终端中来举例说明。该模式切换方法可以包括如下步骤：
在步骤201中，获取环境光的光强值。
环境光的光强值是指当前环境光的光照强度。
在移动终端处于正常显示模式时，移动终端在每隔预定时间间隔获取一次当前环境光的光强值；
可选地，移动终端通过内置的光强传感器获取当前环境光的光强值；
本实施例中对环境光的光强值的获取方式不作限定。
在步骤202中，检测本次获取的光强值是否低于上一次获取的光强值。
由于移动终端每隔预定时间间隔获取一次当前环境的光强值。移动终端将本次获取的光强值与上一次获取的光强值进行比较，检测本次获取的光强值是 否低于上一次获取的光强值。
若低于上一次获取的光强值，则进入步骤203；若高于上一次获取的光强值，则进入步骤204。
在步骤203中，若本次获取的光强值低于上一次获取的光强值，则降低液晶显示屏的背光亮度。
本步骤可以包括如下步骤，如图2B所示：
在步骤203a中，根据第二对应关系，查询与本次获取的光强值对应的背光亮度。
第二对应关系是指光强值与背光亮度之间的对应关系。
可选为，一个环境光的光强值区间对应一个背光亮度，通过将环境光的光强值进行区间划分得到不同的背光亮度，也即根据环境光的光强值的降低，背光亮度也会随之降低。
示意性地：假设环境光的光强值从0-500lx，其中lx是光照强度的单位勒克斯，将环境光的光强值每隔50作为一个区间，将环境光的光强值的区间，对应于不同级别的背光亮度。假设光强值低于50lx时，背光灯调低至最低的背光亮度无法满足当前光强值的需要，则对应关系如下表格所示：
光强值区间 背光级别
(450-500) 第九级背光亮度
(400-450) 第八级背光亮度
(350-400) 第七级背光亮度
(300-350) 第六级背光亮度
(250-300) 第五级背光亮度
(200-250) 第四级背光亮度
(150-200) 第三级背光亮度
(100-150) 第二级背光亮度
(50-100) 第一级背光亮度
表一
将环境光的光强值区间与背光亮度等级的级别对应关系称为第二对应关系。若当前环境光的光强值为75时，由表一中的对应关系可以看出，此时移动终端的背光亮度处于第一级。等级越低的背光亮度，亮度越低；等级越高的背 光亮度，亮度越高。
在步骤203b中，将液晶显示屏的背光灯调整至查找出的背光亮度。
根据第二对应关系和本次获取的光强值，将液晶显示屏的背光灯调整至对应本次获取的光强值的背光亮度。
在步骤204中，若本次获取的光强值高于上一次获取的光强值，则提升液晶显示屏的背光亮度。
提升过程也可以采用图2B所示出的方法进行提升。
在步骤205中，检测本次获取的光强值是否低于预定门限。
在降低背光亮度后，终端还检测本次获取的光强值是否低于预定门限。
预定门限是指开发人员经过多次检测的经验值，该经验值可选为背光灯的最低亮度无法满足环境光的光强值时的光强值。
若光强值不低于预定门限，则进入步骤206；若光强值低于预定门限，则进入步骤207。
在步骤206中，若光强值不低于预定门限，则保持正常显示模式。
若本次获取环境光的光强值不低于预定门限，则降低背光灯的亮度以适应当前光强值的亮度。
在步骤207中，若光强值低于预定门限，则开启夜间模式。
比较本次获取的环境光的光强值和预定门限的大小；
若本次获取环境光的光强值低于预定门限，则开启夜间模式；
可选为，若本次获取环境光的光强值不低于预定门限，则降低背光灯的亮度以适应当前光强值的亮度。
本步骤可以包括如下步骤，如图2C所示：
在步骤207a中，根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级。
第一对应关系是指环境光的光强值与夜间模式等级之间的对应关系。
可选为，一个环境光的光强值区间对应一个夜间模式等级，通过将环境光的光强值进行区间划分得到不同的夜间模式等级，也即根据环境光的光强值的降低，夜间模式等级越高。
例如：由上述表一可知光强值在0-50lx时，背光灯的最低亮度也无法满足当前光强值的要求，假定预定门限为50lx，将环境光的光强值每隔10作为一个 区间，也即有5个区间，并将环境光的光强值的区间对应于夜间模式等级；将环境光的光强值区间与夜间模式等级的级别对应关系称为第一对应关系。具体对应关系如下表格所示：
光强值区间 夜间模式等级
(40-50) 第一等级
(30-40) 第二等级
(20-30) 第三等级
(10-20) 第四等级
(0-10) 第五等级
表二
若当前环境光的光强值为25时，根据表二中的对应关系可以看出，此时移动终端处于夜间模式，且夜间模式等级处于第三等级。
本实施例中表一和表二中的光强值和对应背光灯等级以及对应夜间模式等级仅用于举例说明，本实施对两者的对应关系并不作具体限定。
在步骤207b中，将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行降低。
液晶显示屏中的灰阶电压是指每个液晶显示单元与数据驱动芯片中的数据线相连的漏电极电压。
图3示出了一种TFT-LCD上的阵列基板结构示意图。其包括以矩阵形式排列的液晶像素电极1，设置在液晶像素电极1行列之间的数据线2和扫描线3，数据线2与数据驱动芯片4相连，扫描线3与扫描驱动芯片5相连，通常一条数据线2对应连接控制一列液晶像素电极1，一条扫描线3对应连接控制一行液晶像素电极1。在每个液晶像素电极1上连接有源电极6，对应每个源电极6都设置有漏电极7，漏电极7连接在对应的数据线2上，在每对源电极6和漏电极7下设置有栅极8，栅极连接在对应的扫描线3上。源电极6、漏电极7和栅极8即组成TFT开关元件。
在阵列基板工作时，数据线2用于将数据驱动芯片4中的视频数据信号传送到TFT开关元件的漏电极7，以此控制液晶像素电极的电压。
在液晶显示装置工作时，对于一帧画面，数据驱动芯片4将视频数据信号通过数据线2传输到漏电极7，扫描驱动芯片5控制扫描线3逐行打开，从而数 据驱动芯片4将对应的数据电压存入到像素电极1上，形成各个等级的灰阶电压，实现每一帧图像显示。
液晶显示屏中的灰阶电压对应TFT-LCD阵列基板中的漏电极电压，也即，移动终端通过改变TFT-LCD阵列基板中的漏电极电压从而改变液晶显示屏中的灰阶电压。该灰阶电压具有预定的对应关系，比如灰度255对应灰阶电压A，灰度215对应灰阶电压B，该对应关系可以是一条曲线。
基于初始预定的对应关系，本实施例中的夜间模式是将每个灰度所对应的灰阶电压按照预定比例降低实现的。比如，预定比例为85％，则夜间模式下，灰度255对应的灰阶电压为A*85％，灰度215对应灰阶电压B*85％。
夜间模式等级通过不同的预定比例降低液晶显示屏中的灰阶电压实现，也即，夜间模式等级与降低液晶显示屏中的灰阶电压时的预定比例之间存在对应关系。移动终端根据夜间模式等级，通过预定比例改变液晶显示屏中的灰阶电压，从而实现与当前环境光强值的对应的夜间模式等级。
示例性地，夜间模式等级与预定比例的对应关系如下表所示：
夜间模式等级 预定比例
第一等级 85％
第二等级 75％
第三等级 65％
第四等级 55％
第五等级 45％
表三
若根据表二中的对应关系知道，当前环境的光强值对应于夜间模式等级为第三等级，此时，通过改变液晶显示屏中的灰阶电压实现夜间模式等级。也即，通过将液晶显示屏中的灰阶电压改变为正常灰阶电压的65％来实现第三等级的夜间模式。
本实施例中，表三中夜间模式等级与预定比例的对应关系只是用于举例说明，本实施例中对两者之间的对应关系不作限定。
需要说明一点的是，除了降低液晶显示屏的灰阶电压，本实施例中提供的夜间模式还可以包括将背光灯的亮度调至最低或将UI的背景颜色改为黑色，或 其他暗色调的颜色等其它处理操作。本实施例可以在背光灯的亮度调至最低都无法满足当前环境光的光强值的情况下，进一步地降低液晶显示屏的显示亮度。
综上所述，本实施例提供的模式切换方法，通过获取环境光的光强值，检测本次获取的光强值是否低于上一次获取的光强值，若本次获取的光强值低于上一次获取的光强值，则降低液晶显示屏的背光亮度，检测本次获取的光强值是否低于预定门限，若本次获取的光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；解决了在环境光亮度极低时，通过调节背光灯的亮度或者UI的背景颜色无法满足环境光亮度的问题；达到了通过降低液晶显示屏中的灰阶电压来实现降低屏幕亮度的效果。
在移动终端处于夜间模式状态时，若使用者从光强值较低的环境中进入光强值较高的环境中，处于夜间模式的移动终端的操作内容将无法清晰显示，造成无法操作的现象。请参考如下实施例：
图4为根据一示例性实施例示出的一种模式切换方法的流程图，该模式切换方法可以包括如下步骤：
在步骤401中，在当前显示模式为夜间模式时，获取环境光的光强值，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
在步骤402中，检测本次获取的光强值是否高于预定门限。
在步骤403中，若光强值高于预定门限，则退出夜间模式。
综上所述，本实施例提供的模式切换方法，在当前显示模式为夜间模式时，通过获取环境光的光强值，检测本次获取的光强值是否高于预定门限，若本次获取的光强值高于预定门限，则退出夜间模式；解决了在当前显示模式为夜间模式时，由于环境光的光强值的升高，使得移动终端无法操作的问题；达到了通过提升液晶显示屏中的灰阶电压和背光灯的亮度来实现提升屏幕亮度的效果。
图5为根据一示例性实施例示出的另一种模式切换方法的流程图，该模式切换方法可以包括如下步骤：
在步骤501中，在当前显示模式为夜间模式时，获取环境光的光强值。
夜间模式是指将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
环境光的光强值是指当前环境中的光照强度，移动终端在每隔预定时间间隔获取一次当前环境光的光强值，这样便于检测环境光的变化情况。
在步骤502中，检测本次获取的光强值是否高于预定门限。
预定门限是指移动终端经过多次检测的经验值，该经验值可选为背光灯的最低亮度无法满足环境光的光强值时的光强值。
在步骤503中，若本次获取的光强值不高于预定门限，则检测本次获取的光强值是否高于上一次获取的光强值。
当本次获取的光强值不高于预定门限时，将本次获取的光强值与上一次获取的光强值进行比较，检测本次获取的光强值是否高于上一次获取的光强值。
在步骤504中，若本次获取的光强值高于上一次获取的光强值，则根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级。
第一对应关系是指环境光的光强值与夜间模式等级之间的对应关系。
可选为，一个环境光的光强值区间对应一个夜间模式等级，通过将环境光的光强值进行区间划分得到不同的夜间模式等级，也即根据环境光的光强值的降低，夜间模式等级越高。
比如，根据表二中的对应关系，假定当前的夜间模式处于第三等级，若本次获取的光强值属于第二区间，则将当前的夜间模式提升为第二等级。
在步骤505中，将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行提升。
液晶显示屏中的灰阶电压是指每个液晶显示单元与数据驱动芯片中的数据线相连的漏电极电压。
夜间模式等级与夜间显示屏中的灰阶电压对应关系如表三所示。
例如，假定当前的夜间模式处于第三等级，若本次获取的光强值属于第二区间，也即对应夜间模式第二等级，对应的，将液晶显示屏中的灰阶电压由第三等级对应的正常灰阶电压的65％提升为正常灰阶电压的75％。
在步骤506中，若本次获取的光强值高于预定门限，则退出夜间模式。
移动终端退出夜间模式包括：将液晶显示屏中的灰阶电压恢复为正常的灰阶电压。
若本次获取的光强值高于预定门限，则将每个液晶显示单元与数据驱动芯片中的数据线相连的漏电极电压恢复到正常的电压状态。
在步骤507中，在退出夜间模式后，根据第二对应关系，查询与本次获取的光强值对应的背光亮度。
第二对应关系是指光强值与背光亮度之间的对应关系。
可选为，一个环境光的光强值区间对应一个背光亮度，通过将环境光的光强值进行区间划分得到不同的背光亮度，也即根据环境光的光强值的提升，背光亮度也会随之提升。
光强值与背光灯亮度之间的对应关系如表一所示，相关描述请参考步骤203a。
在步骤508中，将液晶显示屏的背光灯调整至查找出的背光亮度。
根据第二对应关系和本次获取的光强值，将液晶显示屏的背光灯调整至对应本次获取的光强值的背光亮度。
综上所述，本实施例提供的模式切换方法，在当前显示模式为夜间模式时，通过获取环境光的光强值，检测本次获取的光强值是否高于预定门限，若本次获取的光强值不高于预定门限，则检测本次获取的光强值是否高于上一次获取的光强值，若本次获取的光强值高于上一次获取的光强值，则查找与本次获取的光强值对应的夜间模式等级，若本次获取的光强值高于预定门限，则退出夜间模式，将液晶显示屏中的灰阶电压恢复为正常的灰阶电压，且将液晶显示屏的背光灯调整至查找出的背光亮度；解决了在当前显示模式为夜间模式时，由于环境光的光强值的升高，使得移动终端无法操作的问题；达到了通过提升夜间显示屏中的灰阶电压和背光灯的亮度来实现提升屏幕亮度的效果。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图6是根据一示例性实施例示出的一种模式切换装置的框图，该模式切换装置可以通过软件、硬件或者两者的结合实现成为移动终端的全部或者一部分。该模式切换装置可以包括：
获取模块601，被配置为获取环境光的光强值。
第一检测模块602，被配置为检测本次获取的光强值是否低于预定门限。
开启模块603，被配置为在光强值低于预定门限时，开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
综上所述，本实施例提供的模式切换装置，通过获取环境光的光强值，检测本次获取的光强值是否低于预定门限，若本次获取的光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；解决了在环境光亮度极低时，通过调节背光灯的亮度或者UI的背景颜色无法满足环境光亮度的问题；达到了通过降低液晶显示屏中的灰阶电压来实现降低屏幕亮度的效果。
图7是根据一示例性实施例示出的另一种模式切换装置的框图，该模式切换装置可以通过软件、硬件或者两者的结合实现成为移动终端的全部或者一部分。该模式切换装置可以包括：
获取模块701，被配置为获取环境光的光强值。
第二检测模块702，被配置为检测本次获取的光强值是否低于上一次获取的光强值。
调节模块703，被配置为在本次获取的光强值低于上一次获取的光强值时，降低液晶显示屏的背光亮度。
第一查找模块703a，被配置为根据第二对应关系，查询与本次获取的光强值对应的背光亮度；
第二对应关系是指光强值与背光亮度之间的对应关系；
第一调整模块703b，被配置为将液晶显示屏的背光灯调整至查找出的背光亮度。
第一检测模块704，被配置为检测本次获取的光强值是否低于预定门限。
开启模块705，被配置为在本次获取的光强值低于预定门限时，开启夜间模式。
夜间模式是指将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
第二查找模块705a，被配置为根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级；
第一对应关系是指光强值与夜间模式等级之间的对应关系；
第二调整模块705b，被配置为将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行降低。
综上所述，本实施例提供的模式切换装置，通过获取环境光的光强值，检测本次获取的光强值是否低于上一次获取的光强值，若本次获取的光强值低于上一次获取的光强值，则降低液晶显示屏的背光亮度，检测本次获取的光强值是否低于预定门限，若本次获取的光强值低于预定门限，则开启夜间模式，该夜间模式是将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；解决了在环境光亮度极低时，通过调节背光灯的亮度或者UI的背景颜色无法满足环境光亮度的问题；达到了通过降低液晶显示屏中的灰阶电压来实现降低屏幕亮度的效果。
关于上述实施例中的装置，其中各个模块执行操作的相关方式已经在对应的方法实施例中进行了详细描述，此处将不再做阐述说明。
图8是根据一示例性实施例示出的一种模式切换装置的框图，该模式切换装置可以通过软件、硬件或者两者的结合实现成为移动终端的全部或者一部分。该模式切换装置可以包括：
获取模块801，被配置为在当前显示模式为夜间模式时，获取环境光的光强值。
夜间模式是指将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
第一检测模块802，被配置为检测本次获取的光强值是否高于预定门限。
退出模块803，被配置为在光强值高于预定门限时，退出夜间模式。
综上所述，本实施例提供的模式切换装置，在当前显示模式为夜间模式时，通过获取环境光的光强值，检测本次获取的光强值是否高于预定门限，若本次获取的光强值高于预定门限，则退出夜间模式；解决了在当前显示模式为夜间模式时，由于环境光的光强值的升高，使得移动终端无法操作的问题；达到了通过提升夜间显示屏中的灰阶电压和背光灯的亮度来实现提升屏幕亮度的效果。
图9是根据一示例性实施例示出的另一种模式切换装置的框图，该模式切 换装置可以通过软件、硬件或者两者的结合实现成为移动终端的全部或者一部分。该模式切换装置可以包括：
获取模块901，被配置为在当前显示模式为夜间模式时，获取环境光的光强值。
夜间模式是指将液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
第一检测模块902，被配置为检测本次获取的光强值是否高于预定门限。
第二检测模块903，被配置为在光强值不高于预定门限时，检测本次获取的光强值是否高于上一次获取的光强值。
第一查找模块904，被配置为在本次获取的光强值高于上一次获取的光强值时，根据第一对应关系，查找与本次获取的光强值对应的夜间模式等级。
第一对应关系是指光强值与夜间模式等级之间的对应关系；
第一调整模块905，被配置为将液晶显示屏中的灰阶电压按照与夜间模式等级对应的比例进行提升。
退出模块906，被配置为在光强值高于预定门限时，退出夜间模式。
第二调整模块906a，被配置为将液晶显示屏中的灰阶电压恢复为正常的灰阶电压。
第二查找模块907，被配置为在退出夜间模式后，根据第二对应关系，查找与本次获取的光强值对应的背光亮度。
第二对应关系是指光强值与背光亮度之间的对应关系；
调节模块908，被配置为将液晶显示屏的背光灯调整至查找出的背光亮度。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
综上所述，本实施例提供的模式切换装置，在当前显示模式为夜间模式时，通过获取环境光的光强值，检测本次获取的光强值是否高于预定门限，若本次获取的光强值不高于预定门限，则检测本次获取的光强值是否高于上一次获取的光强值，若本次获取的光强值高于上一次获取的光强值，则查找与本次获取的光强值对应的夜间模式等级，若本次获取的光强值高于预定门限，则退出夜间模式，将液晶显示屏中的灰阶电压恢复为正常的灰阶电压，且将液晶显示屏的背光灯调整至查找出的背光亮度；解决了在当前显示模式为夜间模式时，由 于环境光的光强值的升高，使得移动终端无法操作的问题；达到了通过提升夜间显示屏中的灰阶电压和背光灯的亮度来实现提升屏幕亮度的效果。
图10是根据一示例性实施例示出的一种模式切换装置的框图。例如，装置1000可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图10，装置1000可以包括以下一个或多个组件：处理组件1002，存储器1004，电源组件1006，多媒体组件1008，音频组件1010，输入/输出(I/O)接口1012，传感器组件1014，以及通信组件1016。
处理组件1002通常控制装置1000的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件1002可以包括一个或多个处理器1018来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1002可以包括一个或多个模块，便于处理组件1002和其他组件之间的交互。例如，处理组件1002可以包括多媒体模块，以方便多媒体组件1008和处理组件1002之间的交互。
存储器1004被配置为存储各种类型的数据以支持在装置1000的操作。这些数据的示例包括用于在装置1000上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件1006为装置1000的各种组件提供电力。电源组件1006可以包括电源管理系统，一个或多个电源，及其他与为装置1000生成、管理和分配电力相关联的组件。
多媒体组件1008包括在装置1000和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作 相关的持续时间和压力。在一些实施例中，多媒体组件1008包括一个前置摄像头和/或后置摄像头。当装置1000处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1010被配置为输出和/或输入音频信号。例如，音频组件1010包括一个麦克风(MIC)，当装置1000处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1004或经由通信组件1016发送。在一些实施例中，音频组件1010还包括一个扬声器，用于输出音频信号。
I/O接口1012为处理组件1002和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1014包括一个或多个传感器，用于为装置1000提供各个方面的状态评估。例如，传感器组件1014可以检测到装置1000的打开/关闭状态，组件的相对定位，例如组件为装置1000的显示器和小键盘，传感器组件1014还可以检测装置1000或装置1000一个组件的位置改变，用户与装置1000接触的存在或不存在，装置1000方位或加速/减速和装置1000的温度变化。传感器组件1014可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1014还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1014还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1016被配置为便于装置1000和其他设备之间有线或无线方式的通信。装置1000可以接入基于通信标准的无线网络，如Wi-Fi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件1016经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件1016还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置1000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑 器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述模式切换方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1004，上述指令可由装置1000的处理器1018执行以完成上述模式切换方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (18)

  1. 一种模式切换方法，其特征在于，所述方法包括：
    获取环境光的光强值；
    检测本次获取的所述光强值是否低于预定门限；
    若所述光强值低于所述预定门限，则开启夜间模式，所述夜间模式是将所述液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
  2. 根据权利要求1所述的方法，其特征在于，所述开启夜间模式，包括：
    根据第一对应关系，查找与本次获取的所述光强值对应的夜间模式等级；所述第一对应关系是光强值与夜间模式等级之间的对应关系；
    将所述液晶显示屏中的灰阶电压按照与所述夜间模式等级对应的比例进行降低。
  3. 根据权利要求1所述的方法，其特征在于，所述方法，还包括：
    检测本次获取的所述光强值是否低于上一次获取的光强值；
    若本次获取的所述光强值低于上一次获取的光强值，则降低所述液晶显示屏的背光亮度。
  4. 根据权利要求3所述的方法，其特征在于，所述降低液晶显示屏的背光亮度，包括：
    根据第二对应关系，查询与本次获取的所述光强值对应的背光亮度；所述第二对应关系是光强值与背光亮度之间的对应关系；
    将所述液晶显示屏的背光灯调整至查找出的所述背光亮度。
  5. 一种模式切换方法，其特征在于，所述方法还包括：
    在当前显示模式为夜间模式时，获取环境光的光强值；所述夜间模式是将所述液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；
    检测本次获取的所述光强值是否高于所述预定门限；
    若所述光强值高于所述预定门限，则退出所述夜间模式。
  6. 根据权利要求5所述的方法，其特征在于，所述退出所述夜间模式，包括：
    将所述液晶显示屏中的灰阶电压恢复为正常的灰阶电压。
  7. 根据权利要求5所述的方法，其特征在于，所述方法，还包括：
    若本次获取的所述光强值不高于所述预定门限，则检测本次获取的所述光强值是否高于上一次获取的光强值；
    若本次获取的所述光强值高于上一次获取的光强值，则根据第一对应关系，查找与本次获取的所述光强值对应的夜间模式等级，所述第一对应关系是光强值与夜间模式等级之间的对应关系；
    将所述液晶显示屏中的灰阶电压按照与所述夜间模式等级对应的比例进行提升。
  8. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    在退出所述夜间模式后，根据第二对应关系，查询与本次获取的所述光强值对应的背光亮度；所述第二对应关系是光强值与背光亮度之间的对应关系；
    将所述液晶显示屏的背光灯调整至查找出的所述背光亮度。
  9. 一种模式切换装置，其特征在于，所述装置包括：
    获取模块，被配置为获取环境光的光强值；
    第一检测模块，被配置为检测本次获取的所述光强值是否低于预定门限；
    开启模块，被配置为在所述光强值低于所述预定门限时，开启夜间模式，所述夜间模式是将所述液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
  10. 根据权利要求9所述的装置，其特征在于，所述开启夜间模式，包括：
    根据第一对应关系，查找与本次获取的所述光强值对应的夜间模式等级；所述第一对应关系是光强值与夜间模式等级之间的对应关系；
    将所述液晶显示屏中的灰阶电压按照与所述夜间模式等级对应的比例进行 降低。
  11. 根据权利要求9所述的装置，其特征在于，所述装置，还包括：
    第二检测模块，被配置为检测本次获取的所述光强值是否低于上一次获取的光强值；
    调节模块，被配置为在本次获取的所述光强值低于上一次获取的光强值时，降低所述液晶显示屏的背光亮度。
  12. 根据权利要求11所述的装置，其特征在于，所述降低液晶显示屏的背光亮度，包括：
    根据第二对应关系，查询与本次获取的所述光强值对应的背光亮度；所述第二对应关系是光强值与背光亮度之间的对应关系；
    将所述液晶显示屏的背光灯调整至查找出的所述背光亮度。
  13. 一种模式切换装置，其特征在于，所述装置包括：
    获取模块，被配置为在当前显示模式为夜间模式时，获取环境光的光强值；所述夜间模式是将所述液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；
    第一检测模块，被配置为检测本次获取的所述光强值是否高于所述预定门限；
    退出模块，被配置为在所述光强值高于所述预定门限时，退出所述夜间模式。
  14. 根据权利要求13所述的装置，其特征在于，所述退出所述夜间模式，包括：
    将所述液晶显示屏中的灰阶电压恢复为正常的灰阶电压。
  15. 根据权利要求13所述的装置，其特征在于，所述装置，还包括：
    第二检测模块，被配置为在所述光强值不高于所述预定门限时，检测本次获取的所述光强值是否高于上一次获取的光强值；
    等级设定模块，被配置为在本次获取的所述光强值高于上一次获取的光强值时，根据第一对应关系，查找与本次获取的所述光强值对应的夜间模式等级，所述第一对应关系是光强值与夜间模式等级之间的对应关系；
    所述等级设定模块还包括：将所述液晶显示屏中的灰阶电压按照与所述夜间模式等级对应的比例进行提升。
  16. 根据权利要求13所述的装置，其特征在于，所述装置，还包括：
    调节模块，被配置为在退出所述夜间模式后，根据第二对应关系，查询与本次获取的所述光强值对应的背光亮度；所述第二对应关系是光强值与背光亮度之间的对应关系；
    所述调节模块还包括：将所述液晶显示屏的背光灯调整至查找出的所述背光亮度。
  17. 一种模式切换装置，其特征在于，所述装置包括：
    处理器；
    用于存储所述处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    获取环境光的光强值；
    检测本次获取的所述光强值是否低于预定门限；
    若所述光强值低于所述预定门限，则开启夜间模式，所述夜间模式是将所述液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式。
  18. 一种模式切换装置，其特征在于，所述装置包括：
    处理器；
    用于存储所述处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    在当前显示模式为夜间模式时，获取环境光的光强值；所述夜间模式是将所述液晶显示屏中的灰阶电压按照预定比例进行降低的显示模式；
    检测本次获取的所述光强值是否高于所述预定门限；
    若所述光强值高于所述预定门限，则退出所述夜间模式。
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