WO2018000503A1 - 调节终端lcd背光亮度的方法、装置以及终端 - Google Patents

调节终端lcd背光亮度的方法、装置以及终端 Download PDF

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Publication number
WO2018000503A1
WO2018000503A1 PCT/CN2016/092497 CN2016092497W WO2018000503A1 WO 2018000503 A1 WO2018000503 A1 WO 2018000503A1 CN 2016092497 W CN2016092497 W CN 2016092497W WO 2018000503 A1 WO2018000503 A1 WO 2018000503A1
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Prior art keywords
value
output power
terminal
temperature
brightness
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PCT/CN2016/092497
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English (en)
French (fr)
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邓再勇
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2018000503A1 publication Critical patent/WO2018000503A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/3406Control of illumination source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/3406Control of illumination source
    • G09G3/3413Details of control of colour illumination sources

Definitions

  • the present disclosure relates to the field of terminal LCD display technologies, for example, to a method, device, and terminal for adjusting brightness of a liquid crystal display LCD backlight of a terminal.
  • LCD Liquid Crystal Display
  • a liquid crystal is a substance between a liquid and a crystal that controls the penetration of light by an electric current to display an image.
  • the liquid crystal itself does not emit light, so all liquid crystal displays require backlighting, and the brightness of the backlight determines the brightness of the display.
  • One way to typically set the terminal screen brightness adjustment is to manually set it manually.
  • the method can be found in the software settings to adjust the brightness of the LCD, the user can manually drag to set the brightness of the backlight.
  • This method requires manual adjustment, which is cumbersome to operate, easy to consume more power, and has a poor user experience.
  • Another method of adjusting the brightness of the screen of the terminal is to detect the brightness of the ambient light by the light sensing device, thereby automatically adjusting the brightness of the backlight. This method requires an additional light-sensing device, and the structural design requires special handling, resulting in an increase in the cost of the entire end product.
  • the present disclosure provides a method, device, and terminal for adjusting the brightness of a backlight of a terminal LCD, which solves the problem that the terminal screen adjustment method is difficult to operate, the user experience is poor, or the cost is high.
  • a method for adjusting brightness of a LCD backlight of a terminal liquid crystal display comprising:
  • the obtaining the temperature value of the LCD backlight circuit of the terminal includes:
  • a temperature value matching the resistance value is obtained by the correspondence between the resistance value and the temperature value.
  • the determining an output power value that matches the temperature value includes:
  • the determining an output power value that matches the temperature value includes:
  • the output power value is a default output power value, where the first preset threshold is smaller than the second preset threshold
  • a device for adjusting the brightness of an LCD backlight of a terminal liquid crystal display comprising:
  • a determining module configured to determine an output power value that matches the temperature value according to a correspondence between a preset output power value of the terminal LCD backlight circuit and the temperature value;
  • the adjustment module is configured to adjust an output power of the terminal LCD backlight circuit according to the output power value to implement adjustment of brightness of the terminal LCD backlight circuit.
  • the obtaining module is further configured to:
  • the determining module is further configured to:
  • the determining module is further configured to:
  • the output power value is a default output power value, where the first preset threshold is smaller than the second preset threshold; Determining, when the temperature value is lower than the first preset threshold, that the output power value is greater than a value of the default output power value; and when the temperature value exceeds the second preset threshold, determining The output power value is a value less than the default output power value.
  • a terminal comprising a temperature detecting device for detecting a temperature change of a liquid crystal display (LCD) backlight circuit of a terminal, and a device for adjusting a brightness of a backlight of a terminal LCD according to any of the above.
  • LCD liquid crystal display
  • the temperature detecting device is a thermistor disposed at a position of a light source of the terminal LCD backlight circuit.
  • a non-transitory computer readable storage medium storing computer executable instructions arranged to perform any of the above methods for adjusting brightness of a liquid crystal display LCD backlight of a terminal.
  • the method and device for adjusting brightness of a backlight of a terminal LCD obtained by the present disclosure obtains a temperature value of a backlight circuit of the terminal LCD; and determines a matching value with a temperature value according to a corresponding relationship between a output power value of the terminal LCD backlight circuit and a temperature value.
  • the output power value is adjusted according to the output power value to adjust the brightness of the terminal LCD backlight circuit to adjust the brightness of the terminal LCD backlight circuit.
  • the present invention changes the backlight brightness of the LCD by detecting the temperature change of the LCD backlight circuit of the terminal, and dims the brightness of the backlight when the temperature of the LCD backlight circuit of the terminal is high, which can avoid the overheating of the LCD and cause the whole machine to generate heat, and can also reduce the work of the LCD. Consumption, increase the standby time of the terminal.
  • the present disclosure can not only realize the automatic adjustment of the backlight brightness of the terminal LCD, but also save the light sensing device, reduce the structural design difficulty and the assembly cost, thereby reducing the cost of the product.
  • the present disclosure also provides a terminal having the above technical advantages.
  • FIG. 1 is a flow chart of an alternative embodiment of a method for adjusting brightness of a backlight of a terminal LCD provided by the present disclosure
  • FIG. 2 is a flow chart of another alternative embodiment of a method for adjusting brightness of a backlight of a terminal LCD provided by the present disclosure
  • FIG. 3 is a flowchart of an implementation of still another alternative embodiment of a method for adjusting brightness of a backlight of a terminal LCD provided by the present disclosure
  • FIG. 4 is a structural block diagram of an apparatus for adjusting brightness of a backlight of a terminal LCD according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of an optional implementation manner of a terminal provided by the present disclosure.
  • FIG. 6 is a schematic diagram of a hardware structure of an apparatus for performing a method for adjusting brightness of a backlight of a terminal LCD according to the present disclosure.
  • FIG. 1 A flowchart of an alternative embodiment of a method for adjusting brightness of a backlight of a terminal LCD provided by the present disclosure is shown in FIG. 1 , and the method includes:
  • the detection of the terminal LCD backlight circuit may be: placing a corresponding temperature detecting device at the position of the light source of the backlight circuit.
  • the temperature detecting device may employ a thermistor that exhibits different resistance values at different temperatures.
  • the thermistor can be a positive temperature coefficient thermistor or a negative temperature coefficient thermistor, which does not affect the implementation of the present disclosure.
  • the output power value of the terminal LCD backlight circuit has a preset correspondence relationship with the temperature value. For the different temperature values detected, one corresponds to an output power value. The higher the value of the temperature value, the lower the output power value of the corresponding terminal LCD backlight circuit.
  • different output power values may be corresponding for different temperature values. It is also possible to divide the temperature value into a plurality of ranges according to the detected temperature value, and respectively set a plurality of sets of output power files corresponding thereto. For example, the value of the temperature value is divided into three ranges from low to high, and the value of the temperature value is in a lower range, and the corresponding output power file is a higher screen brightness; the value of the temperature value is in the middle range, corresponding to The output power file is the normal default screen brightness; when the value of the temperature value is in a higher range, the corresponding output power file is the lower screen brightness.
  • more ranges can be divided according to actual conditions, which do not affect the implementation of the present disclosure.
  • an output power of the terminal LCD backlight circuit is adjusted according to the output power value to implement adjustment of brightness of the terminal LCD backlight circuit.
  • the method for adjusting the brightness of the LCD backlight of the terminal obtains the temperature value of the backlight circuit of the terminal LCD; and determines the output that matches the temperature value according to the corresponding relationship between the output power value of the terminal LCD backlight circuit and the temperature value. a power value; adjusting an output power of the terminal LCD backlight circuit according to the output power value to implement adjustment of brightness of the terminal LCD backlight circuit.
  • the disclosure changes the backlight brightness of the LCD by detecting the temperature change of the LCD backlight circuit of the terminal, and dims the brightness of the backlight when the temperature of the backlight circuit of the terminal LCD is high, thereby avoiding the over-brightness of the LCD and causing the whole machine to emit
  • the heat can also reduce the power consumption of the LCD and increase the standby time of the terminal.
  • the present disclosure can not only realize the automatic adjustment of the backlight brightness of the terminal LCD, but also save the light sensing device, reduce the structural design difficulty and the assembly cost, thereby reducing the cost of the product.
  • the process of obtaining temperature values in the present disclosure may be indirectly obtained by acquiring a resistance value corresponding to a change in temperature value. It can be realized by placing a temperature detecting resistor near the position of the light source of the terminal LCD backlight circuit. The brightness of the backlight source is more likely to generate heat, and the higher the ambient temperature, the change in the temperature of the temperature detecting resistor can be sensed.
  • the method includes:
  • a temperature value matching the resistance value is obtained by a correspondence between the resistance value and a temperature value
  • an output power of the terminal LCD backlight circuit is adjusted according to the output power value to implement adjustment of brightness of the terminal LCD backlight circuit.
  • step S230 of the embodiment determines that the output power matched with the resistance value can be realized by defining a simple formula, which can be:
  • T is a preset constant value, so that the current output power of the terminal LCD backlight circuit can be determined by the detected resistance value.
  • the resistance value Rt becomes small, and the output power of the corresponding backlight circuit becomes small, thereby controlling the brightness of the light source to become dark.
  • the thermistor is a negative temperature coefficient resistor, and of course, a positive temperature coefficient resistor can also be used.
  • a positive temperature coefficient resistor is used, as the temperature increases, the resistance value Rt becomes larger, and the output power of the backlight circuit should be inversely proportional to the resistance value, that is, the output power of the corresponding backlight circuit becomes smaller to control the illumination source. The brightness is dimmed.
  • a temperature detecting power is placed near the position of the light source of the LCD backlight circuit of the mobile phone terminal. Resistance, the change in the temperature of the environment around the LCD light source affects the change in the resistance value of the temperature sensing resistor. The resistance value of the temperature detecting resistor changes, and the output power of the backlight circuit is adjusted to control the brightness of the light source of the LCD backlight circuit.
  • the process of determining, by the disclosure, an output power value that matches the temperature value may be:
  • a level lower temperature value, indicating that the LCD brightness is dark
  • B level moderate temperature value, indicating that the LCD brightness is normal (default brightness)
  • C level temperature A higher value indicates that the LCD brightness is too bright
  • the B level is the default normal level.
  • the current brightness level is at the B level.
  • the resistance value of the thermistor becomes smaller than the preset range, it can be known that the current brightness level exceeds the B level to reach the C level, and the LCD backlight circuit is dimmed by reducing the output power of the backlight driving circuit.
  • the resistance value of the thermistor becomes larger than the preset range, it can be known that the current brightness level is lower than the B level to reach the A level, and the LCD backlight circuit is brightened by increasing the output power of the backlight driving circuit.
  • the implementation flowchart of this embodiment is as shown in FIG. 3, and may include:
  • the terminal LCD brightness automatic adjustment function can be solved;
  • the light sensing device can be omitted, and the structural design difficulty and assembly cost can be reduced.
  • the brightness of the LCD backlight is changed by detecting the temperature of the heat source, thereby avoiding the overheating of the LCD, causing the whole machine to generate heat, affecting the heat dissipation experience of the terminal product, and also reducing the power consumption problem of the LCD and making the terminal product stand by for a longer period of time.
  • the apparatus for adjusting the brightness of the LCD backlight of the terminal provided by the embodiment of the present disclosure is described below.
  • the apparatus for adjusting the brightness of the backlight of the LCD of the terminal described below and the method for adjusting the brightness of the backlight of the LCD of the terminal described above may be referred to each other.
  • the apparatus for adjusting brightness of a backlight of a terminal LCD according to FIG. 4 may include:
  • the obtaining module 100 is configured to obtain a temperature value of the terminal LCD backlight circuit
  • the determining module 200 is configured to determine an output power value that matches the temperature value according to a preset relationship between an output power value of the terminal LCD backlight circuit and the temperature value;
  • the adjustment module 300 is configured to adjust an output power of the terminal LCD backlight circuit according to the output power value to implement adjustment of brightness of the terminal LCD backlight circuit.
  • the acquiring module is further configured to:
  • the determining module is further configured to:
  • the determining module is further configured to:
  • the output power value is a default output power value, where the first preset threshold is smaller than the second preset threshold;
  • the temperature value is lower than the first preset threshold, determining that the output power value is greater than a value of the default output power value;
  • the temperature value exceeds the second preset threshold, determining the The output power value is a value less than the default output power value.
  • the device for adjusting brightness of a backlight of a terminal LCD is obtained by acquiring a backlight of a terminal LCD a temperature value of the circuit; determining, according to a preset relationship between an output power value of the terminal LCD backlight circuit and a temperature value, an output power value matching the temperature value; and adjusting an output of the terminal LCD backlight circuit according to the output power value Power to achieve adjustment of the brightness of the terminal LCD backlight circuit.
  • the disclosure changes the backlight brightness of the LCD by detecting the temperature change of the LCD backlight circuit of the terminal, and dims the brightness of the backlight when the temperature of the LCD backlight circuit of the terminal is high, which can avoid the overheating of the LCD and cause the whole machine to generate heat, and can also reduce the work of the LCD.
  • the present disclosure can not only realize the automatic adjustment of the backlight brightness of the terminal LCD, but also save the light sensing device, reduce the structural design difficulty and the assembly cost, thereby reducing the cost of the product.
  • the present disclosure also provides a terminal, including a temperature detecting device for detecting a temperature change of a backlight circuit of the terminal LCD, and any of the above devices for adjusting the brightness of the LCD backlight of the terminal.
  • the temperature detecting device may be a thermistor disposed at a position of a light source of the LCD backlight circuit of the terminal.
  • the first end of the device for adjusting the brightness of the LCD backlight of the terminal is connected to the thermistor (NTC) Rt for acquiring the thermistor Rt.
  • the second resistor is connected to the backlight circuit control circuit, and is configured to determine an output power value that matches the resistance value according to a preset relationship between the output power value of the terminal LCD backlight circuit and the resistance value; The output power value adjusts an output power of the terminal LCD backlight circuit to implement adjustment of brightness of the terminal LCD backlight circuit.
  • the terminal provided by the present disclosure changes the backlight brightness of the LCD by detecting the temperature change of the LCD backlight circuit of the terminal, and dims the brightness of the backlight when the temperature of the backlight circuit of the terminal LCD is high, thereby avoiding the excessive brightness of the LCD and causing the whole machine to generate heat. It can reduce the power consumption of the LCD and increase the standby time of the terminal. Compared with the related art, the present disclosure can not only realize the automatic adjustment of the backlight brightness of the terminal LCD, but also save the light sensing device, reduce the structural design difficulty and the assembly cost, thereby reducing the cost of the product.
  • the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented directly in hardware, a software module executed by a processor, or a combination of both.
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.
  • FIG. 6 is a schematic diagram of a hardware structure of an apparatus for performing a method for adjusting brightness of a backlight of a terminal LCD according to the present disclosure.
  • Embodiments of the present invention also provide a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of the above embodiments.
  • Embodiments of the present invention also provide an apparatus for performing a method of adjusting brightness of a backlight of a terminal LCD.
  • the device includes:
  • One or more processors 610, one processor 610 is taken as an example in FIG. 6;
  • the device may also include an input device 630 and an output device 640.
  • the processor 610, the memory 620, the input device 630, and the output device 640 in the device may be connected by a bus or other means, and the bus connection is taken as an example in FIG.
  • the memory 620 is a non-transitory computer readable storage medium, and can be used to store a software program, a computer executable program, and a program instruction/module corresponding to the method for adjusting the brightness of the LCD backlight of the terminal in the embodiment of the present invention.
  • the processor 610 performs the function application and the data processing of the server by running the software program, the instruction and the module stored in the memory 620, that is, the method for adjusting the brightness of the LCD backlight of the terminal in the above method embodiment.
  • the memory 620 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like.
  • memory 620 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • memory 620 can include memory remotely located relative to processor 610, which can be connected to the terminal device over a network.
  • An example of the above network include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Input device 630 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the terminal.
  • the output device 640 can include a display device such as a display screen.
  • the one or more modules are stored in the memory 620, and when executed by the one or more processors 610, perform the steps of the above method embodiments.
  • the method and device for adjusting the brightness of a backlight of a terminal LCD change the brightness of the backlight of the LCD by detecting the temperature change of the backlight circuit of the terminal LCD, and dim the brightness of the backlight when the temperature of the backlight circuit of the terminal LCD is high, thereby avoiding the LCD Brightness causes the whole machine to heat up, and at the same time, it can reduce the power consumption of the LCD and increase the standby time of the terminal.
  • the present disclosure can not only realize the automatic adjustment of the backlight brightness of the terminal LCD, but also save the light sensing device, reduce the structural design difficulty and the assembly cost, thereby reducing the cost of the product.

Abstract

一种调节终端LCD背光亮度的方法,包括:获取终端LCD背光电路的温度值(S110);根据预先设置的终端LCD背光电路的输出功率值与所述温度值的对应关系,确定与所述温度值相匹配的输出功率值(S120);以及根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节(S130)。

Description

调节终端LCD背光亮度的方法、装置以及终端
本申请要求在2016年6月30日提交中国专利局、申请号为201610505583.2、发明名称为“一种调节终端LCD背光亮度的方法、装置以及终端”的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及终端LCD显示技术领域,例如涉及一种调节终端液晶显示屏LCD背光亮度的方法、装置以及终端。
背景技术
LCD(Liquid Crystal Display),中文称为液晶显示屏。液晶是一种介于液体和晶体之间的物质,它可以通过电流来控制光线的穿透度,从而显示出图像。但是,液晶本身并不会发光,因此所有的液晶显示屏都需要背光照明,背光的亮度也就决定了显示屏的亮度。
通常终端屏幕亮度调节设置的一种方法是人工手动设置。方法可以为在软件设置中找到调节LCD亮度的选项,用户可以手动拖动以对背光亮度的大小进行设置。此种方法需要手动调节,操作较为麻烦,容易多消耗电量,用户体验较差。另一种调节终端屏幕亮度的方法是通过光感器件检测环境光亮度,进而来自动调节背光亮度大小。此种方法需要额外增加光感器件,结构设计需要进行特殊处理,使得整个终端产品的成本增加。
发明内容
本公开提供了一种调节终端LCD背光亮度的方法、装置以及终端,解决了终端屏幕调节方法不易操作、用户体验差或成本较高的问题。
一种调节终端液晶显示屏LCD背光亮度的方法,包括:
获取终端LCD背光电路的温度值;
根据预先设置的终端LCD背光电路的输出功率值与所述温度值的对应关系,确定与所述温度值相匹配的输出功率值;以及
根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
可选地,所述获取终端LCD背光电路的温度值包括:
获取温度检测电阻的电阻值;
通过所述电阻值与温度值的对应关系,获取与所述电阻值相匹配的温度值。
可选地,所述确定与所述温度值相匹配的输出功率值包括:
根据P=T*Rt计算与所述温度值相匹配的输出功率值,其中,P为输出功率值,T为发光源的亮度反应的预设温度值,Rt为电阻值,所述电阻值随着温度值的升高而减小。
可选地,所述确定与所述温度值相匹配的输出功率值包括:
当所述温度值位于第一预设阈值到第二预设阈值之间时,确定所述输出功率值为默认输出功率值,其中所述第一预设阈值小于所述第二预设阈值;
当所述温度值低于所述第一预设阈值时,确定所述输出功率值为大于所述默认输出功率值的数值;以及
当所述温度值超过所述第二预设阈值时,确定所述输出功率值为小于所述默认输出功率值的数值。
一种调节终端液晶显示屏LCD背光亮度的装置,包括:
获取模块,设置为获取终端LCD背光电路的温度值;
确定模块,设置为根据预先设置的终端LCD背光电路的输出功率值与所述温度值的对应关系,确定与所述温度值相匹配的输出功率值;以及
调节模块,设置为根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
可选地,所述获取模块还设置为:
获取温度检测电阻的电阻值;通过所述电阻值与温度值的对应关系,获取与所述电阻值相匹配的温度值。
可选地,所述确定模块还设置为:
根据P=T*Rt计算与所述温度值相匹配的输出功率值,其中,P为输出功率值,T为发光源的亮度反应的预设温度值,Rt为电阻值,所述电阻值随着温度值的升高而减小。
可选地,所述确定模块还设置为:
当所述温度值位于第一预设阈值到第二预设阈值之间时,确定所述输出功率值为默认输出功率值,其中所述第一预设阈值小于所述第二预设阈值;当所述温度值低于所述第一预设阈值时,确定所述输出功率值为大于所述默认输出功率值的数值;以及当所述温度值超过所述第二预设阈值时,确定所述输出功率值为小于所述默认输出功率值的数值。
一种终端,包括检测终端液晶显示屏LCD背光电路的温度变化的温度检测装置以及如上述任一项所述的调节终端LCD背光亮度的装置。
可选地,所述温度检测装置为热敏电阻,设置于所述终端LCD背光电路的发光源位置处。
一种非瞬时性计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令设置为执行上述任一项调节终端液晶显示屏LCD背光亮度的方法。本公开所提供的调节终端LCD背光亮度的方法及装置,通过获取终端LCD背光电路的温度值;根据预先设置的终端LCD背光电路的输出功率值与温度值的对应关系,确定与温度值相匹配的输出功率值;根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。本申请通过检测终端LCD背光电路的温度变化来改变LCD的背光亮度,在终端LCD背光电路的温度较高时调暗背光亮度,能够避免LCD过亮导致整机发热,同时也能够降低LCD的功耗,增加终端的待机时间。与相关技术相比,本公开不仅能够实现终端LCD背光亮度的自动调节,还能够省去光感器件,降低了结构设计难度和组装成本,从而降低了产品的成本。本公开还提供了一种具有上述技术优点的终端。
附图说明
为了更清楚的说明本公开实施例或相关技术的技术方案,下面将对实施例或相关技术描述中所需要使用的附图作简单的介绍,下面描述中的附图仅仅是本公开的一些实施例的附图。
图1为本公开所提供的调节终端LCD背光亮度的方法的一种可选实施方式的流程图;
图2为本公开所提供的调节终端LCD背光亮度的方法的另一种可选实施方式的流程图;
图3为本公开所提供的调节终端LCD背光亮度的方法的又一种可选实施方式的实现流程图;
图4为本公开实施例提供的调节终端LCD背光亮度的装置的结构框图;
图5为本公开所提供的终端的一种可选实施方式的结构示意图;
图6为本公开所提供的一种执行调节终端LCD背光亮度的方法的设备的硬件结构示意图。
实施方式
为了使本技术领域的人员更好地理解本公开方案,下面结合附图和可选实施方式对本公开作的详细说明。所描述的实施例仅仅是本公开一部分实施例,而不是全部的实施例。本公开所提供的调节终端LCD背光亮度的方法的一种可选实施方式的流程图如图1所示,该方法包括:
在S110中,获取终端LCD背光电路的温度值;
需要指出的是,终端LCD背光电路的检测可以为:在背光电路的发光源位置处放置相应的温度检测装置。作为一种可选实施方式,温度检测装置可以采用在不同的温度下表现出不同的电阻值的热敏电阻。热敏电阻可以为正温度系数热敏电阻,也可以为负温度系数热敏电阻,这均不影响本公开的实现。
在S120中,根据预先设置的终端LCD背光电路的输出功率值与所述温度值的对应关系,确定与所述温度值相匹配的输出功率值;
本公开中,终端LCD背光电路的输出功率值与温度值具有预先设置的对应关系。对于检测到的不同的温度值,均对应一个输出功率值。温度值的数值越高,对应的终端LCD背光电路的输出功率值越低。
作为一种可选实施方式,对于不同的温度值可以对应不同的输出功率值。还可以根据检测到的温度值,将温度值划分为多个范围,分别设置多组与之对应的输出功率档。例如,将温度值的数值由低到高划分为三个范围,在温度值的数值处于较低范围内,对应的输出功率档为屏幕亮度较高档;在温度值的数值处于中间范围内,对应的输出功率档为屏幕亮度正常默认档;在温度值的数值处于较高范围内,对应的输出功率档为屏幕亮度较低档。当然,可以根据实际情况划分更多范围,这均不影响本公开的实现。
在S130中,根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
本公开所提供的调节终端LCD背光亮度的方法,通过获取终端LCD背光电路的温度值;根据预先设置的终端LCD背光电路的输出功率值与温度值的对应关系,确定与温度值相匹配的输出功率值;根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。本公开通过检测终端LCD背光电路的温度变化来改变LCD的背光亮度,在终端LCD背光电路的温度较高时调暗背光亮度,能够避免LCD过亮导致整机发 热,同时也能够降低LCD的功耗,增加终端的待机时间。与相关技术相比,本公开不仅能够实现终端LCD背光亮度的自动调节,还能够省去光感器件,降低了结构设计难度和组装成本,从而降低了产品的成本。
在上述实施例的基础上,作为一种可选实施方式,本公开获取温度值的过程可以为通过获取与温度值的变化相对应的电阻值来间接获取。可以在终端LCD背光电路的发光源位置附近放置一个温度检测电阻来实现。背光电路发光源亮度越强越容易发热,环境温度越高,通过检测温度检测电阻的电阻值的变化,能够感应光源温度的变化。
如图2本公开所提供的调节终端LCD背光亮度的方法的另一种可选实施方式的流程图所示,该方法包括:
在S210中,获取温度检测电阻的电阻值;
在S220中,通过所述电阻值与温度值的对应关系,获取与所述电阻值相匹配的温度值;
在S230中,根据预先设置的终端LCD背光电路的输出功率值与所述电阻值的对应关系,确定与所述电阻值相匹配的输出功率值;
在S240中,根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
本实施例的上述步骤S230确定与电阻值相匹配的输出功率可通过定义一简单公式来实现,可以是:
根据P=T*Rt计算与所述温度值相匹配的输出功率值,其中,P为输出功率值,T为发光源的亮度反应的预设温度值,Rt为电阻值,所述电阻值随着温度值的升高而减小。
T为预先设定的恒定值,这样通过检测到的电阻值大小,能够确定终端LCD背光电路的当前输出功率。当温度升高时,电阻值Rt变小,对应的背光电路的输出功率变小,从而控制发光源的亮度变暗。
本实施例中热敏电阻为负温度系数的电阻,当然还可以采用正温度系数的电阻。当采用正温度系数的电阻时,随着温度的升高,电阻值Rt变大,背光电路的输出功率应与电阻值成反比,即对应的背光电路的输出功率变小,以控制发光源的亮度变暗。
本实施例在手机终端LCD背光电路的发光源位置附近放置一个温度检测电 阻,LCD光源周围环境的温度的变化影响到温度检测电阻的电阻值变化。温度检测电阻的电阻值变化,对背光电路的输出功率进行调节,从而控制LCD背光电路的发光源的亮度。
可选的,在上述任一实施例的基础上,本公开确定与所述温度值相匹配的输出功率值的过程可以为:
当所述温度值位于第一预设阈值到第二预设阈值之间时,确定所述输出功率为默认输出功率值,所述第一预设阈值小于所述第二预设阈值;
当所述温度值低于所述第一预设阈值时,确定所述输出功率值为大于所述默认输出功率值的数值;
当所述温度值超过所述第二预设阈值时,确定所述输出功率值为小于所述默认输出功率值的数值。
下面通过一可选实施例对此进行阐述。在软件中设置温度值对应的亮度等级,分三个等级:A等级:温度值较低,表示LCD亮度偏暗;B等级:温度值适中,表示LCD亮度正常(默认亮度);C等级:温度值较高,表示LCD亮度过亮;其中B等级为默认正常等级。
当检测到热敏电阻的电阻值在预设范围时,当前亮度等级位于B等级。当检测到热敏电阻的电阻值变小,低于预设范围时,可知当前亮度等级超过B等级到达C等级,此时通过减小背光驱动电路的输出功率来调暗LCD背光电路。当检测到热敏电阻的电阻值变大,高于预设范围时,可知当前亮度等级低于B等级达到A等级,此时通过增大背光驱动电路的输出功率来调亮LCD背光电路。
本实施例的实现流程图如图3所示,可以是包括:
在S310中,检测热敏电阻的电阻值是否在预设范围时,判断LCD的当前亮度等级是否位于B等级内;
在S320中,当检测到LCD的亮度等级不位于B等级内时,采样温度检测电阻的电阻值,判断当前温度对应的亮度等级;
在S330中,在当前温度对应的亮度等级低于B等级达到A等级时,增大背光电路的输出功率;
在S340中,在当前温度对应的亮度等级超过B等级达到C等级时,减小背光电路的输出功率。
通过以上技术方案,不仅可以解决了终端LCD背光亮度自动调节功能;还 可以省去光感器件,降低结构设计难度和组装成本。本实施例通过检测热源温度来改变LCD背光亮度,避免LCD过亮导致整机发热,影响终端产品手握散热体验;同时也能降低LCD功耗问题,让终端产品待机更持久。
下面对本公开实施例提供的调节终端LCD背光亮度的装置进行介绍,下文描述的调节终端LCD背光亮度的装置与上文描述的调节终端LCD背光亮度的方法可相互对应参照。
图4为本公开实施例提供的调节终端LCD背光亮度的装置的结构框图,参照图4调节终端LCD背光亮度的装置可以包括:
获取模块100,设置为获取终端LCD背光电路的温度值;
确定模块200,设置为根据预先设置的终端LCD背光电路的输出功率值与所述温度值的对应关系,确定与所述温度值相匹配的输出功率值;
调节模块300,设置为根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
作为一种可选实施方式,本公开所提供的调节终端LCD背光亮度的装置中,上述获取模块还设置为:
获取温度检测电阻的电阻值;通过所述电阻值与温度值的对应关系,获取与所述电阻值相匹配的温度值。
作为一种可选实施方式,本公开所提供的调节终端LCD背光亮度的装置中,上述确定模块还设置为:
根据P=T*Rt计算与所述温度值相匹配的输出功率值,其中,P为输出功率值,T为发光源的亮度反应的预设温度值,Rt为电阻值,所述电阻值随着温度值的升高而减小。
作为一种可选实施方式,本公开所提供的调节终端LCD背光亮度的装置中,上述确定模块还设置为:
当所述温度值位于第一预设阈值到第二预设阈值之间时,确定所述输出功率值为默认输出功率值,所述第一预设阈值小于所述第二预设阈值;当所述温度值低于所述第一预设阈值时,确定所述输出功率值为大于所述默认输出功率值的数值;当所述温度值超过所述第二预设阈值时,确定所述输出功率值为小于所述默认输出功率值的数值。
本公开所提供的调节终端LCD背光亮度的装置,通过获取终端LCD背光 电路的温度值;根据预先设置的终端LCD背光电路的输出功率值与温度值的对应关系,确定与温度值相匹配的输出功率值;根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。本公开通过检测终端LCD背光电路的温度变化来改变LCD的背光亮度,在终端LCD背光电路的温度较高时调暗背光亮度,能够避免LCD过亮导致整机发热,同时也能够降低LCD的功耗,增加终端的待机时间。与相关技术相比,本公开不仅能够实现终端LCD背光亮度的自动调节,还能够省去光感器件,降低了结构设计难度和组装成本,从而降低了产品的成本。
此外,本公开还提供了一种终端,包括检测终端LCD背光电路的温度变化的温度检测装置以及上述任一种调节终端LCD背光亮度的装置。
其中,温度检测装置可以为热敏电阻,设置于终端LCD背光电路的发光源位置处。如图5本公开所提供的终端的一种可选实施方式的结构示意图所示,调节终端LCD背光亮度的装置的第一端与热敏电阻(NTC)Rt相连,用于获取热敏电阻Rt采集的电阻值,第二端与背光电路控制电路相连,用于根据预先设置的终端LCD背光电路的输出功率值与电阻值的对应关系,确定与电阻值相匹配的输出功率值;并根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
本公开所提供的终端,通过检测终端LCD背光电路的温度变化来改变LCD的背光亮度,在终端LCD背光电路的温度较高时调暗背光亮度,能够避免LCD过亮导致整机发热,同时也能够降低LCD的功耗,增加终端的待机时间。与相关技术相比,本公开不仅能够实现终端LCD背光亮度的自动调节,还能够省去光感器件,降低了结构设计难度和组装成本,从而降低了产品的成本。
本说明书中多个实施例采用递进的方式描述,每个实施例重点说明的都是与其它实施例的不同之处,每个实施例之间相同或相似部分互相参见即可。对于实施例公开的装置而言,由于与实施例公开的方法相对应,所以描述的比较简单,相关之处参见方法部分说明即可。
专业人员还可以意识到,结合本文中所公开的实施例描述的多个示例的单元及算法步骤,能够以电子硬件、计算机软件或者二者的结合来实现,为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地描述了每个示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使 用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以直接用硬件、处理器执行的软件模块,或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
图6为本公开所提供的一种执行调节终端LCD背光亮度的方法的设备的硬件结构示意图。
本发明实施例还提供一种非瞬时性计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令设置为执行上述实施例的方法。
本发明实施例还提供了一种执行调节终端LCD背光亮度的方法的设备。参见图6,该设备包括:
一个或者多个处理器610,图6中以一个处理器610为例;
存储器620。
所述设备还可以包括:输入装置630和输出装置640。所述设备中的处理器610、存储器620、输入装置630和输出装置640可以通过总线或其他方式连接,图6中以通过总线连接为例。
存储器620作为一种非瞬时性计算机可读存储介质,可用于存储软件程序、计算机可执行程序,如本发明实施例中的调节终端LCD背光亮度的方法对应的程序指令/模块。处理器610通过运行存储在存储器620中的软件程序、指令以及模块,从而执行服务器的功能应用以及数据处理,即实现上述方法实施例中的调节终端LCD背光亮度的方法。
存储器620可包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序;存储数据区可存储根据终端设备的使用所创建的数据等。此外,存储器620可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中,存储器620可包括相对于处理器610远程设置的存储器,这些远程存储器可以通过网络连接至终端设备。上述网络的实例 包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置630可设置为接收输入的数字或字符信息,以及产生与终端的用户设置以及功能控制有关的键信号输入。输出装置640可包括显示屏等显示设备。
所述一个或者多个模块存储在所述存储器620中,当被所述一个或者多个处理器610执行时,执行上述方法实施例的步骤。
以上对本公开所提供的调节终端LCD背光亮度的方法、装置以及终端进行了详细介绍。本文中应用了可选个例对本公开的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本公开的方法及核心思想。应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开原理的前提下,还可以对本公开进行改进和修饰,这些改进和修饰也落入本公开权利要求的保护范围内。
工业实用性
本公开所提供的调节终端LCD背光亮度的方法及装置,通过检测终端LCD背光电路的温度变化来改变LCD的背光亮度,在终端LCD背光电路的温度较高时调暗背光亮度,能够避免LCD过亮导致整机发热,同时也能够降低LCD的功耗,增加终端的待机时间。与相关技术相比,本公开不仅能够实现终端LCD背光亮度的自动调节,还能够省去光感器件,降低了结构设计难度和组装成本,从而降低了产品的成本。

Claims (11)

  1. 一种调节终端液晶显示屏LCD背光亮度的方法,包括:
    获取终端LCD背光电路的温度值;
    根据预先设置的终端LCD背光电路的输出功率值与所述温度值的对应关系,确定与所述温度值相匹配的输出功率值;以及
    根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
  2. 如权利要求1所述的调节终端LCD背光亮度的方法,其中,所述获取终端LCD背光电路的温度值包括:
    获取温度检测电阻的电阻值;
    通过所述电阻值与温度值的对应关系,获取与所述电阻值相匹配的温度值。
  3. 如权利要求2所述的调节终端LCD背光亮度的方法,其中,所述确定与所述温度值相匹配的输出功率值包括:
    根据P=T*Rt计算与所述温度值相匹配的输出功率值,其中,P为输出功率值,T为发光源的亮度反应的预设温度值,Rt为电阻值,所述电阻值随着温度值的升高而减小。
  4. 如权利要求1或2所述的调节终端LCD背光亮度的方法,其中,所述确定与所述温度值相匹配的输出功率值包括:
    当所述温度值位于第一预设阈值到第二预设阈值之间时,确定所述输出功率值为默认输出功率值,其中所述第一预设阈值小于所述第二预设阈值;
    当所述温度值低于所述第一预设阈值时,确定所述输出功率值为大于所述默认输出功率值的数值;以及
    当所述温度值超过所述第二预设阈值时,确定所述输出功率值为小于所述默认输出功率值的数值。
  5. 一种调节终端液晶显示屏LCD背光亮度的装置,包括:
    获取模块,设置为获取终端LCD背光电路的温度值;
    确定模块,设置为根据预先设置的终端LCD背光电路的输出功率值与所述温度值的对应关系,确定与所述温度值相匹配的输出功率值;以及
    调节模块,设置为根据所述输出功率值调节所述终端LCD背光电路的输出功率,以实现对所述终端LCD背光电路的亮度的调节。
  6. 如权利要求5所述的调节终端LCD背光亮度的装置,其中,所述获取模块还设置为:
    获取温度检测电阻的电阻值;通过所述电阻值与温度值的对应关系,获取与所述电阻值相匹配的温度值。
  7. 如权利要求6所述的调节终端LCD背光亮度的装置,其中,所述确定模块还设置为:
    根据P=T*Rt计算与所述温度值相匹配的输出功率值,其中,P为输出功率值,T为发光源的亮度反应的预设温度值,Rt为电阻值,所述电阻值随着温度值的升高而减小。
  8. 如权利要求5或6所述的调节终端LCD背光亮度的装置,其中,所述确定模块还设置为:
    当所述温度值位于第一预设阈值到第二预设阈值之间时,确定所述输出功率值为默认输出功率值,其中所述第一预设阈值小于所述第二预设阈值;当所述温度值低于所述第一预设阈值时,确定所述输出功率值为大于所述默认输出功率值的数值;以及当所述温度值超过所述第二预设阈值时,确定所述输出功率值为小于所述默认输出功率值的数值。
  9. 一种终端,包括检测终端液晶显示屏LCD背光电路的温度变化的温度检测装置以及如权利要求5至8任一项所述的调节终端LCD背光亮度的装置。
  10. 如权利要求9所述的终端,其中,所述温度检测装置为热敏电阻,设置于所述终端LCD背光电路的发光源位置处。
  11. 一种非瞬时性计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令设置为执行权利要求1-4任一项的方法。
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