WO2012167481A1 - 终端的背光调整方法及终端 - Google Patents

终端的背光调整方法及终端 Download PDF

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Publication number
WO2012167481A1
WO2012167481A1 PCT/CN2011/077283 CN2011077283W WO2012167481A1 WO 2012167481 A1 WO2012167481 A1 WO 2012167481A1 CN 2011077283 W CN2011077283 W CN 2011077283W WO 2012167481 A1 WO2012167481 A1 WO 2012167481A1
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WO
WIPO (PCT)
Prior art keywords
backlight
terminal
current value
circuit
working current
Prior art date
Application number
PCT/CN2011/077283
Other languages
English (en)
French (fr)
Inventor
刘斌
董玲玲
胡卫东
刘凤鹏
孙钦利
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012167481A1 publication Critical patent/WO2012167481A1/zh

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Classifications

    • 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
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation
    • G09G2330/021Power management, e.g. power saving

Definitions

  • the present invention relates to the field of communications, and in particular to a backlight adjustment method and terminal for a terminal.
  • BACKGROUND OF THE INVENTION In recent years, countries around the world have implemented sustainable energy policies. As a green energy source, solar energy will be widely used in various terminal products such as tablet computers, mobile phones, Mp3, and Mp4.
  • Mp3, and Mp4 In order to extend the standby time of the end product and the service life of the battery, we should try our best to reduce the power consumption of each circuit in the terminal product.
  • a mobile phone terminal as an example, if the keyboard backlight of the mobile phone is turned on in a bright environment, the battery energy of the mobile phone is unnecessarily consumed, the standby time of the mobile phone is reduced, and the battery life is shortened.
  • the solution currently used is to use a photosensitive device to automatically adjust the brightness of the backlight of the mobile phone keyboard and the backlight of the LCD according to the current ambient brightness, thereby prolonging the standby time of the mobile phone and the service life of the battery.
  • the photosensitive device in the mobile phone:
  • a primary object of the present invention is to provide a backlight adjustment method and terminal for a terminal to solve at least one of the above problems.
  • a backlight adjustment method for a terminal including: when a backlight of a predetermined event triggering terminal displays a backlight, the terminal collects a current operating current value, wherein the working current value is a solar charging circuit of the terminal The working current value; the terminal adjusts the backlight brightness of the backlight circuit according to the working current value.
  • the terminal adjusts the backlight brightness of the backlight circuit according to the working current value, and the method includes: the terminal determines a preset backlight brightness level corresponding to the working current value according to the collected current working current value; and the terminal adjusts the backlight according to the determined preset backlight brightness level. brightness.
  • the terminal determines the preset backlight brightness level corresponding to the working current value according to the collected current working current value, and the method includes: the terminal determines a preset current value range corresponding to the working current value, wherein the current value range and the preset The backlight brightness level corresponds to; the terminal determines the preset backlight brightness level according to the current value range.
  • the backlight circuit includes at least one of the following: a screen backlight circuit and a keyboard backlight circuit.
  • a terminal including: a solar charging circuit configured to provide a working power supply for a terminal, further comprising: a current collecting circuit connected to the solar charging circuit, configured to display a backlight at a predetermined event trigger terminal At the time, the current working current value is collected, wherein the working current value is the working current value of the solar charging circuit; the backlight adjusting circuit is connected to the current collecting circuit, and is set to adjust the backlight brightness of the backlight circuit according to the working current value.
  • the backlight adjustment circuit includes: a determining module configured to determine a preset backlight brightness level corresponding to the working current value according to the collected current working current value; and a backlight adjustment module configured to adjust according to the determined preset backlight brightness level Backlight brightness.
  • the determining module includes: a first determining unit configured to determine a preset current value range corresponding to the working current value, wherein the current value range corresponds to the preset backlight brightness level; and the second determining unit is configured to be based on the current The range of values determines the preset backlight brightness level.
  • the backlight circuit includes at least one of the following: a screen backlight circuit and a keyboard backlight circuit.
  • the technical means for adjusting the backlight brightness of the backlight circuit according to the working current value of the collected solar charging circuit is solved, and in the related art, there is no effective solution for solving the short standby time caused by the backlight of the terminal, and the terminal cost Higher problems such as higher battery life and shorter battery life, thus achieving the effect of extending the standby time of the terminal, increasing the battery life and improving the user experience without increasing the cost.
  • FIG. 1 is a flow chart of a method for adjusting backlight of a terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for adjusting backlight according to Example 2 of the present invention
  • FIG. 3 is a schematic diagram of a method according to the present invention
  • FIG. 4 is a schematic structural diagram of a terminal according to a preferred embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a terminal according to Example 3 of the present invention
  • FIG. 6 is a structural diagram of a terminal according to Example 4 of the present invention
  • Fig. 7 is a schematic structural view of a terminal according to a fifth embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • 1 is a flow chart of a backlight adjustment method of a terminal according to an embodiment of the present invention. As shown in FIG.
  • the method includes: Step S102: When a backlight of a terminal is triggered by a predetermined event to display a backlight, the terminal collects a current working current value, where the working current value is a working current value of the solar charging circuit of the terminal;
  • the predetermined event may include: a user's button operation, an incoming call, etc.
  • the terminal may be a solar terminal, and the solar charging circuit may be located in the terminal.
  • Step S104 the terminal adjusts the backlight brightness of the backlight circuit according to the working current value.
  • the terminal adjusts the backlight brightness of the backlight circuit according to the working current value, and may include the following processing process: the terminal determines the preset backlight brightness level corresponding to the working current value according to the collected current working current value; The backlight brightness is adjusted according to the determined preset backlight brightness level.
  • the terminal determines the preset backlight brightness level corresponding to the working current value according to the collected current working current value, and may include the following processing process: the terminal determines a preset current value corresponding to the working current value. The range, wherein the current value range corresponds to the preset backlight brightness level; the terminal determines the preset backlight brightness level according to the current value range. In this way, the backlight brightness can be adjusted to different brightness levels by setting different current value ranges.
  • the backlight circuit includes, but is not limited to, at least one of the following: a screen backlight circuit and a keyboard backlight circuit.
  • a screen backlight circuit includes, but is not limited to, at least one of the following: a screen backlight circuit and a keyboard backlight circuit.
  • the present invention provides a solution for effectively extending the standby time and battery life of a product in a solar terminal product, thereby improving the user's body-turn.
  • the solar terminal includes the following modules: a baseband processing chip, a solar charging circuit, and a solar panel.
  • the solar panel converts the light energy into electric energy through the solar charging circuit, and the working current of the solar charging circuit is related to the strength of the external light.
  • the working current is large, when the outside world When the ambient light is weak, the operating current is small.
  • a solar panel of about 54mm X 53mm as an example (this area is equivalent to the back area of a conventional Weng 3 cover mobile phone).
  • the measured data is as shown in Table 1 under various light intensities:
  • the baseband processing chip can determine the ambient light according to the collected working current, and then control the backlight brightness level of the solar terminal or other power consumption module, thereby prolonging the standby time and battery life of the terminal product, and improving the user body- ⁇ purpose.
  • adjusting the backlight brightness by using the solar working current value includes the following steps: Step 1: Determine whether an event occurs; Step 2: If there is a button, an incoming call or the like occurs, the baseband processor collects the solar energy at this time.
  • the charging circuit works 3 ⁇ 4 ⁇ ; the third step: judging the brightness of the external environment according to the current, setting different backlight brightness levels for the keyboard backlight and the LCD backlight or indicator.
  • Example 2 is a schematic flow chart of a backlight adjustment method according to Example 2 of the present invention.
  • the method includes the following steps: Step S202, the terminal enters a standby state, the keyboard backlight and the LCD backlight are turned off; Step S204, determining whether there is a button operation or a wake-up event such as an incoming call, if yes, go to step S206; If yes, go to step S202; Step S206, if there is an event to wake up the terminal, the terminal collects the working current of the current solar charging circuit, wherein the solar charging circuit is located in the terminal; Step S208, comparing the current charging circuit operating current value and Presetting the current value, preset a list in the software, determining that the value falls within the range of the preset list according to the current working current value of the charging circuit; Step S210, the terminal controls the brightness level corresponding to the backlight circuit according to the comparison result, that is, the terminal According to the current value falling within the range of the preset list, the drive control sets the backlight circuit to the corresponding brightness level.
  • Step S202 the terminal enters a standby state, the keyboard backlight
  • FIG. 3 is a structural block diagram of a terminal according to an embodiment of the present invention.
  • the terminal includes: a solar charging circuit 30 configured to provide a working power supply for the terminal; and a current collecting circuit 32 connected to the solar charging circuit 30, configured to collect the current work when the predetermined event triggers the terminal to display the backlight.
  • the current value wherein the working current value is a working voltage of the solar charging circuit; the backlight adjusting circuit 34 is connected to the current collecting circuit 32 and configured to adjust the backlight brightness of the backlight circuit according to the working current value.
  • the backlight adjustment circuit 34 includes: a determining module 340, configured to determine a preset backlight brightness level corresponding to the working current value according to the collected current operating current value;
  • the adjustment module 342 is coupled to the determination module 340 and configured to adjust the backlight brightness according to the determined preset backlight brightness level.
  • the determining module 340 includes: a first determining unit 3402, configured to determine a preset current value range corresponding to an operating current value, wherein the current value range and the preset backlight The brightness level corresponds to; the second determining unit 3404 is configured to determine the preset backlight brightness level according to the current value range.
  • FIG. 5 is a schematic structural view of a terminal according to Example 3 of the present invention.
  • the terminal includes: a main control chip 502 (corresponding to the backlight adjustment circuit 34 and the current collection circuit 32), a solar charging circuit 504 (corresponding to the solar charging circuit 30), and a backlight circuit 506.
  • the main control chip 502 collects the operating current of the solar charging circuit, and controls the brightness level of the backlight circuit 506 after comparing with a preset value.
  • the backlight circuit 506 includes a keyboard backlight circuit, an LCD backlight circuit, and an indicator circuit. These backlight circuits can be outputted by the main control chip 502 as needed, and set to a certain brightness level of a plurality of brightness levels.
  • Example 4 Figure 6 is a block diagram showing the structure of a terminal according to Example 4 of the present invention. As shown in FIG. 6, the terminal includes: a main control chip 602 (corresponding to the backlight adjustment circuit 34 and the current collection circuit 32), a solar charging circuit 604 (corresponding to the solar charging circuit 30), and an LCD backlight circuit 606.
  • the mobile phone LCD has set 4 backlight brightness levels. The correspondence between brightness level and backlight current is shown in Table 2: Table 2
  • the main control chip 602 When there is a 4 ⁇ «; or an incoming call or the like wakes up the LCD bright screen event, the main control chip 602 sends an acquisition signal to collect the charging current in the solar charging circuit 604 at this time, taking the data listed above as an example, when the collected When the charging current is greater than 13 mA, the main control chip 602 issues a control command to set the LCD backlight brightness level to four levels; when the charging current is greater than 2.6 mA and less than 13 mA, the backlight brightness level of the LCD backlight circuit 606 is set to three levels; When the charging current is greater than 0.16 mA and less than 2.6 mA, the backlight brightness level of the LCD backlight circuit 606 is set to two levels; when the charging current is less than 0.16 mA, the backlight brightness level of the LCD backlight circuit 606 is set to one level.
  • Example 5 Figure 7 is a block diagram showing the structure of a terminal according to Example 5 of the present invention.
  • the terminal includes: a main control chip 702 (corresponding to the backlight adjustment circuit 34 and the current collection circuit 32), a solar charging circuit 704 (corresponding to the solar charging circuit 30), and a keyboard backlight circuit 706.
  • the backlight of the mobile phone keyboard is set with 4 backlight brightness levels.
  • Table 3 Table 3
  • the main control chip 702 sends an acquisition signal to collect the charging power in the solar charging circuit 704.
  • the data listed above is taken as an example.
  • the main control chip 702 issues a control command to set the keyboard backlight brightness level to one level; when the charging current is greater than 2.6 mA and less than 13 mA, the keyboard backlight brightness level of the keyboard backlight circuit 706 is set to two levels; when the charging current is greater than 0.16 mA and less than 2.6 When mA, set the keyboard backlight brightness level to three levels; when the charging current is less than 0.16mA, set the keyboard backlight brightness level to four levels.
  • Example 6 In this embodiment, if there is a charging indicator on the mobile phone, different brightness levels of the indicator light can be set according to the collected charging current to achieve the purpose of power saving. For details, refer to the descriptions of the foregoing example 4 and the example 5, and details are not described herein again.
  • the present invention achieves the following technical effects:
  • the present invention adopts a technical means for adjusting the backlight brightness of the backlight circuit according to the operating current value of the collected solar charging circuit, and solves the related art,
  • the effective solution solves the problems of short standby time, high terminal cost and short battery life due to the backlight of the terminal, so as to effectively extend the standby time of the terminal and increase the battery life without increasing the cost.
  • the effect of the user experience is improved.
  • since the brightness of the backlight is adjusted by using the photosensitive element, it is not necessary to change the structure of the terminal, and the process is simple.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
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Abstract

本发明提供了一种终端的背光调整方法及终端,其中,上述方法包括:在预定事件触发终端的背光电路显示背光时,终端采集当前的工作电流值,其中,工作电流值为终端的太阳能充电电路的工作电流值;终端根据工作电流值调整背光电路的背光亮度。采用本发明提供的上述技术方案,解决了相关技术中,尚无有效的方案解决由于终端背光而导致的待机时间较短,终端成本较高以及电池使用寿命较短等问题,从而达到了在不增加成本的情况下,有效实现延长终端待机时间,增加电池使用寿命,提升用户体验的效果。

Description

终端的背光调整方法及终端
技术领域 本发明涉及通信领域, 具体而言, 涉及一种终端的背光调整方法及终端。 背景技术 近年来世界各国竟相实施了可持续发展的能源政策, 太阳能作为一种绿色 能源, 将会广泛应用在平板电脑、 手机、 Mp3、 Mp4等各种终端产品中。 为了 延长终端产品的待机时间和电池的使用寿命, 我们应尽可能的降氏终端产品中 各个电路的功耗。 以手机终端为例, 如果在明亮环境下打开手机的键盘背光灯, 就会不必要 的消耗手机电池能量, 减少手机待机时间, 缩短电池寿命。 同样的, 在较暗的 环境中打开液晶显示器( Liquid Crystal Display 简称为 LCD ) 背光灯至最亮等 级, 也会缩短电池寿命, 同时也影响用户体验。 为了减少手机终端在背光灯上 消耗的电流, 目前常常采用的解决方案是采用感光器件, 根据当前环境亮度从 而自动调节手机键盘背光和 LCD 背光的亮度, 达到延长手机待机时间和电池 的使用寿命的目的。 但是在手机中感光器件存在以下问题:
1.成本问题: 手机设计中采用接近人眼敏感曲线的光敏感光器件, 价格较 高。
2.结构问题: 为了使感光器件达到好的感光效果, 结构上需要合理设计, 尽可能屏蔽背光灯对光敏器件的干扰, 这些影响了光感方案的广泛应用。 综上所述, 增加感光器件难以在众多终端产品中广泛应用, 特别是在 Mp3 等小型化的终端中应用, 如何能够在太阳能终端产品中, 不增加成本而有效实 现延长产品待机时间, 增加电池使用寿命, 提升用户体验, 尚无有效的解决方 案。 发明内容 本发明的主要目的在于提供一种终端的背光调整方法及终端, 以解决上述 问题至少之一。 根据本发明的一个方面, 提供了一种终端的背光调整方法, 包括: 在预定 事件触发终端的背光电路显示背光时, 终端采集当前的工作电流值, 其中, 工 作电流值为终端的太阳能充电电路的工作电流值; 终端才艮据工作电流值调整背 光电路的背光亮度。 上述终端根据工作电流值调整背光电路的背光亮度, 包括: 终端根据采集 的当前工作电流值确定与该工作电流值对应的预设背光亮度等级; 终端才艮据确 定的预设背光亮度等级调整背光亮度。 上述终端才艮据采集的当前工作电流值确定与该工作电流值对应的预设背 光亮度等级, 包括: 终端确定预设的与工作电流值对应的电流值范围, 其中, 电流值范围与预设背光亮度等级相对应; 终端根据电流值范围确定预设背光亮 度等级。 上述背光电路包括以下至少之一: 屏幕背光电路、 键盘背光电路。 根据本发明的另一方面, 提供了一种终端, 包括: 太阳能充电电路, 设置 为为终端提供工作电源, 还包括: 电流采集电路, 与太阳能充电电路相连, 设 置为在预定事件触发终端显示背光时, 采集当前的工作电流值, 其中, 工作电 流值为太阳能充电电路的工作电流值; 背光调节电路, 与电流采集电路相连, 设置为根据工作电流值调整背光电路的背光亮度。 上述背光调节电路, 包括: 确定模块, 设置为才艮据采集的当前工作电流值 确定与该工作电流值对应的预设背光亮度等级; 背光调节模块, 设置为根据确 定的预设背光亮度等级调整背光亮度。 上述确定模块, 包括: 第一确定单元, 设置为确定预设的与工作电流值对 应的电流值范围, 其中, 电流值范围与预设背光亮度等级相对应; 第二确定单 元, 设置为根据电流值范围确定预设背光亮度等级。 上述背光电路包括以下至少之一: 屏幕背光电路、 键盘背光电路。 通过本发明, 采用根据采集的太阳能充电电路的工作电流值调整背光电路 的背光亮度的技术手段, 解决了相关技术中, 尚无有效的方案解决由于终端背 光而导致的待机时间较短, 终端成本较高以及电池使用寿命较短等问题, 从而 达到了在不增加成本的情况下, 有效实现延长终端待机时间, 增加电池使用寿 命, 提升用户体验的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不 当限定。 在附图中: 图 1为根据本发明实施例的终端的背光调整方法的流程图; 图 2为才艮据本发明实例二的背光调整方法的流程示意图; 图 3为才艮据本发明实施例的终端的结构框图; 图 4为才艮据本发明优选实施例的终端的结构示意图; 图 5为根据本发明实例三的终端的结构示意图; 图 6为根据本发明实例四的终端的结构示意图; 图 7为才艮据本发明实例五的终端的结构示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不 沖突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。 图 1为才艮据本发明实施例的终端的背光调整方法的流程图。 如图 1所示, 该方法包括: 步骤 S102, 在预定事件触发终端的背光电路显示背光时, 终端采集当前的 工作电流值, 其中, 工作电流值为终端的太阳能充电电路的工作电流值; 在具 体实施时, 上述预定事件可以包括: 用户的按键操作, 来电等以及上述终端可 以为太阳能终端, 上述太阳能充电电路可以位于上述终端中。 步骤 S104, 终端才艮据工作电流值调整背光电路的背光亮度。 上述实施例, 由于太阳能充电电路的工作电流大小与外界光线的强度有 关, 因此, 利用太阳能充电电路的工作电流值可以有效调整背光的亮度, 这样, 相对于相关技术中通过感光部件调整背光亮度, 工艺简单, 成本较低, 达到了 在不增加成本的情况下, 有效实现延长终端待机时间, 增加电池使用寿命, 提 升用户体险的效果。 在具体应用过程中, 上述终端根据工作电流值调整背光电路的背光亮度, 可以包括以下处理过程: 终端才艮据采集的当前工作电流值确定与该工作电流值 对应的预设背光亮度等级; 终端根据确定的预设背光亮度等级调整背光亮度。 这样, 便可以通过工作电流值与预设背光亮度等级的对应关系, 实现利用工作 电流值将背光亮度调整至不同亮度等级, 从而更有效地完成背光亮度的调节以 及提高终端的待机时间。 在具体应用过程中, 上述终端才艮据采集的当前工作电流值确定与该工作电 流值对应的预设背光亮度等级, 可以包括以下处理过程: 终端确定预设的与工 作电流值对应的电流值范围, 其中, 电流值范围与预设背光亮度等级相对应; 终端根据电流值范围确定预设背光亮度等级。 这样, 可以通过设置不同的电流 值范围将背光亮度调整至不同亮度等级。 在具体应用过程中, 上述背光电路包括但不限于以下至少之一: 屏幕背光 电路、 键盘背光电路。 为了更好地理解上述实施例, 以下结合相关附图和具体实例详细说明。 实例 1 本实例为克服相关技术中使用光感器件达到节电目的的问题和缺陷, 提供 一种在太阳能终端产品中, 有效实现延长产品待机时间和电池使用寿命, 提升 用户体 -睑的方案。 本实例中, 太阳能终端包括以下模块: 基带处理芯片, 太阳能充电电路, 太阳能电池板。 其基本原理是: 太阳能电池板通过太阳能充电电路将光能转换为电能储存 在电池中, 太阳能充电电路的工作电流和外界光线的强弱有关, 当外界环境光 线充足时, 工作电流大, 当外界环境光线微弱时, 工作电流小。 以一块约 54mmX53mm的太阳能电池板为例(该面积相当于常规翁 3盖手机的背部面积), 在各种光照强度下经过实测得到如表 1所示数据:
Figure imgf000006_0001
基带处理芯片根据采集到的工作电流的大小可以判断出外界环境光线, 进 而控制太阳能终端的背光灯亮度等级或者其他耗电模块, 达到延长终端产品待 机时间和电池使用寿命, 提升用户体 -睑的目的。 以太阳能手机终端为例, 利用太阳能工作电流值调整背光亮度包括以下步 骤: 第一步: 判断是否有事件发生; 第二步: 如果有按键, 来电等事件发生, 则基带处理器采集此时太阳能充 电电路工作电 ¾ϊ; 第三步: 根据电流的大小判断此时的外界环境亮度, 针对键盘背光灯和 LCD背光灯或者指示灯设置不同的背光亮度等级。 本实例可以克服现有技术中使用光感器件达到节电目的存在的问题和缺 陷, 在不需要增加硬件成本及避免光感方案对手机结构的影响的情况下, 就能 达到延长太阳能终端产品待机时间和电池使用寿命的目的, 提高了用户的使用 效果, 可有效的节约硬件成本。 实例 2 图 2为才艮据本发明实例二的背光调整方法的流程示意图。 如图 2所示, 该 方法包括以下步骤: 步骤 S202 , 终端进入待机状态, 键盘板背光和 LCD背光关闭; 步骤 S204, 判断是否有按键操作或者来电等唤醒事件发生, 如果是, 转步 骤 S206; 如果否, 转步骤 S202; 步骤 S206, 如果有事件发生唤醒终端, 终端采集当前太阳能充电电路的工 作电流, 其中, 该太阳能充电电路位于所述终端中; 步骤 S208 , 比较当前充电电路工作电流值和预设电流值, 软件内预设一个 列表,根据当前充电电路工作电流值大小,判断该值落入预设列表的区间范围; 步骤 S210,终端根据比较结果控制设置背光电路相应的亮度等级即终端根 据电流值落入预设列表的区间范围, 驱动控制, 设置背光电路到相应的亮度等 级。 图 3为才艮据本发明实施例的终端的结构框图。 如图 3所示, 该终端包括: 太阳能充电电路 30 , 设置为为终端提供工作电源; 电流采集电路 32, 与太阳能充电电路 30相连, 设置为在预定事件触发终 端显示背光时, 采集当前的工作电流值, 其中, 工作电流值为太阳能充电电路 的工作电 ¾ϊ值; 背光调节电路 34, 与电流采集电路 32相连, 设置为根据工作电流值调整 背光电路的背光亮度。 在具体应用过程中, 如图 4所示, 上述背光调节电路 34, 包括: 确定模块 340 , 设置为才艮据采集的当前工作电流值确定与该工作电流值对应的预设背光 亮度等级; 背光调节模块 342, 与确定模块 340相连, 设置为根据确定的预设 背光亮度等级调整背光亮度。 在具体应用过程中, 如图 4所示, 上述确定模块 340 , 包括: 第一确定单 元 3402, 设置为确定预设的与工作电流值对应的电流值范围, 其中, 电流值范 围与预设背光亮度等级相对应; 第二确定单元 3404, 设置为根据电流值范围确 定预设背光亮度等级。 在具体应用过程中,上述背光电路可以包括以下至少之一:屏幕背光电路、 键盘背光电路。 为了更好地理解上述实施例, 以下结合相关附图和具体实例详细说明。 实例 3 图 5为才艮据本发明实例三的终端的结构示意图。如图 5所示,该终端包括: 主控制芯片 502 (相当于背光调节电路 34和电流采集电路 32 ), 太阳能充电电 路 504 (相当于太阳能充电电路 30 ), 背光电路 506。 主控制芯片 502采集太阳能充电电路的工作电流, 经过和预先设定值比较 后, 控制背光电路 506的亮度等级。 背光电路 506包括键盘背光电路, LCD背 光电路以及指示灯电路, 这些背光电路都可以根据需要, 由主控制芯片 502发 出控制信号, 将其相应设置到若干亮度等级中的某一亮度等级。 实例 4 图 6为根据本发明实例四的终端的结构示意图。如图 6所示,该终端包括: 主控制芯片 602 (相当于背光调节电路 34和电流采集电路 32 ), 太阳能充电电 路 604 (相当于太阳能充电电路 30 ), LCD背光电路 606。 手机 LCD设置了 4个背光亮度等级,亮度等级和背光电流对应关系如表 2 所示: 表 2
Figure imgf000009_0001
当有 4^«;或者来电等唤醒 LCD亮屏事件发生时, 主控制芯片 602发出采 集信号去采集此时太阳能充电电路 604中的充电电流,以前面列出的数据为例, 当采集到的充电电流大于 13mA时, 主控制芯片 602发出控制命令, 将 LCD 背光亮度等级设为四级; 当充电电流大于 2.6mA且小于 13mA时, 将 LCD背 光电路 606的背光亮度等级设为三级; 当充电电流大于 0.16mA且小于 2.6mA 时, 将 LCD背光电路 606的背光亮度等级设为二级; 当充电电流小于 0.16mA 时, 将 LCD背光电路 606的背光亮度等级设为一级。 这样, 随着外界光线的 强弱, 设置不同的 LCD 背光电流: 当外在光线偏亮, 瞳孔收缩, 手机背光须 维持一个较高的亮度等级让眼睛进行辨别; 当外在光线偏暗, 瞳孔放大, 手机 背光只要维持较低的亮度等级, 眼睛就可以感受到相同的显示效果, 在智能节 电的同时大大提升了用户体验。 实例 5 图 7为才艮据本发明实例五的终端的结构示意图。如图 7所示,该终端包括: 主控制芯片 702 (相当于背光调节电路 34和电流采集电路 32 ), 太阳能充电电 路 704 (相当于太阳能充电电路 30 ), 键盘背光电路 706。 手机键盘背光设置了 4个背光亮度等级, 亮度等级和背光电流对应关系如 表 3所示: 表 3
Figure imgf000010_0001
当有唤醒键盘背光事件发生时, 主控制芯片 702发出采集信号去采集此时 太阳能充电电路 704中的充电电 以前面列出的数据为例, 当采集到的充电 电流大于 13mA时, 主控制芯片 702发出控制命令, 将键盘背光亮度等级设为 一级; 当充电电流大于 2.6mA且小于 13mA时, 将键盘背光电路 706的键盘背 光亮度等级设为二级; 当充电电流大于 0.16mA且小于 2.6mA时, 将键盘背光 亮度等级设为三级; 当充电电流小于 0.16mA时, 将键盘背光亮度等级设为四 级。 这样, 在光线充足时, 关闭键盘背光也可看清按键, 在光线较弱时, 适时 打开不同亮度等级, 方便用户使用, 智能节电的同时提升了用户体验。 实例 6 在本实施例中, 若手机上有充电指示灯, 可以根据采集到的充电电流的大 小, 设置不同的指示灯亮度等级, 以达到节电的目的。 具体可参见上述实例 4 和实例 5的描述, 此处不再赘述。 从以上的描述中, 可以看出, 本发明实现了如下技术效果: 本发明, 采用根据采集的太阳能充电电路的工作电流值调整背光电路的背 光亮度的技术手段, 解决了相关技术中, 尚无有效的方案解决由于终端背光而 导致的待机时间较短, 终端成本较高以及电池使用寿命较短等问题, 从而达到 了在不增加成本的情况下, 有效实现延长终端待机时间, 增加电池使用寿命, 提升用户体验的效果, 同时, 相对于相关技术中由于采用感光元件调整背光亮 度, 不必改变终端的结构, 工艺简单。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以 用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多 个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码 来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 并且在某些 情况下, 可以以不同于此处的顺序执行所示出或描述的步骤, 或者将它们分别 制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作成单个集成电 路模块来实现。 这样, 本发明不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领 域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则 之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之 内。

Claims

权 利 要 求 书
1. 一种终端的背光调整方法, 包括:
在预定事件触发终端的背光电路显示背光时, 所述终端采集当前的 工作电流值, 其中, 所述工作电流值为所述终端的太阳能充电电路的工 作电流值;
所述终端才艮据所述工作电流值调整所述背光电路的背光亮度。
2. 根据权利要求 1所述的方法, 其中, 所述终端根据所述工作电流值调整 所述背光电路的背光亮度, 包括:
所述终端才艮据采集的所述当前工作电流值确定与该工作电流值对应 的预设背光亮度等级;
所述终端才艮据确定的所述预设背光亮度等级调整所述背光亮度。
3. 根据权利要求 2所述的方法, 其中, 所述终端根据采集的所述当前工作 电流值确定与该工作电流值对应的预设背光亮度等级, 包括:
所述终端确定预设的与所述工作电流值对应的电流值范围, 其中, 所述电流值范围与所述预设背光亮度等级相对应;
所述终端才艮据所述电流值范围确定所述预设背光亮度等级。
4. 根据权利要求 1至 3任一项所述的方法, 其中, 所述背光电路包括以下 至少之一:
屏幕背光电路、 键盘背光电路。
5. 一种终端, 包括: 太阳能充电电路, 设置为为终端提供工作电源, 还包 括:
电流采集电路, 与所述太阳能充电电路相连, 设置为在预定事件触 发终端显示背光时, 采集当前的工作电流值, 其中, 所述工作电流值为 所述太阳能充电电路的工作电流值;
背光调节电路, 与所述电流采集电路相连, 设置为才艮据所述工作电 流值调整背光电路的背光亮度。
6. 根据权利要求 5所述的终端, 其中, 所述背光调节电路, 包括: 确定模块, 设置为才艮据采集的所述当前工作电流值确定与该工作电 流值对应的预设背光亮度等级;
背光调节模块, 设置为根据确定的所述预设背光亮度等级调整所述 背光亮度。
7. 根据权利要求 6所述的终端, 其中, 所述确定模块, 包括:
第一确定单元, 设置为确定预设的与所述工作电流值对应的电流值 范围, 其中, 所述电流值范围与所述预设背光亮度等级相对应;
第二确定单元, 设置为才艮据所述电流值范围确定所述预设背光亮度 等级。
8. 根据权利要求 5至 7任一项所述的终端, 其中, 所述背光电路包括以下 至少之一:
屏幕背光电路、 键盘背光电路。
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