WO2015062396A1 - 保护视力的方法及具有保护视力功能的设备 - Google Patents

保护视力的方法及具有保护视力功能的设备 Download PDF

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WO2015062396A1
WO2015062396A1 PCT/CN2014/088230 CN2014088230W WO2015062396A1 WO 2015062396 A1 WO2015062396 A1 WO 2015062396A1 CN 2014088230 W CN2014088230 W CN 2014088230W WO 2015062396 A1 WO2015062396 A1 WO 2015062396A1
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distance
user
angle
infrared emitter
display screen
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French (fr)
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王映理
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GUANG DONG MING CHUANG SOFTWARE TECHNOLOGY CORP Ltd
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GUANG DONG MING CHUANG SOFTWARE TECHNOLOGY CORP Ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00

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  • the present invention relates to the field of display devices, and more particularly to a method for protecting vision of a device having a display screen.
  • the brightness of the display screen including the television, the computer and the mobile phone can be adjusted automatically or manually to provide a soft visual experience for the user to protect the user's vision. But the effect is not ideal.
  • the existing device with a display screen has the disadvantages of having a simple protection function and a large error in the collected user state data, and the protection effect on the user's vision is not ideal, and the operation is cumbersome, and the user is The inconvenience caused by the use has seriously affected the user experience, and it is far from satisfying the user's use requirements.
  • the object of the present invention is to provide a method for protecting eyesight, which can accurately collect the user's view. Angle data, to better protect the user's vision, and the operation is simpler and more convenient, so that users get a more comfortable and effective user experience.
  • Another object of the present invention is to provide a device with a function of protecting vision, which can accurately collect user's perspective data to better protect the user's vision, and the operation is simpler and more convenient, thereby enabling the user to obtain a more comfortable and effective user.
  • a device with a function of protecting vision which can accurately collect user's perspective data to better protect the user's vision, and the operation is simpler and more convenient, thereby enabling the user to obtain a more comfortable and effective user.
  • the present invention provides a method for protecting vision, which is applicable to a device having a display screen, comprising the following steps: (1) acquiring a user through a first infrared emitter and a second infrared emitter of the device The angle of the display screen is used to obtain the angle of view data; (2) determining whether the angle of view data is within a preset safety range, and if so, controlling the display screen to be normally displayed, if otherwise, the corresponding protection reminder is activated.
  • the present invention acquires the angle of the display screen by the user to obtain the angle of view data through the first infrared emitter and the second infrared emitter of the device, and determines whether the angle of view data is preset.
  • the display screen is normally displayed or the corresponding protection reminder is activated, and the user's perspective data can be accurately collected, and the user can be given corresponding protection reminder to better protect the user's vision and operate more. Simple and convenient, so that users get a more comfortable and effective user experience.
  • the step (1) specifically includes: (11) the first infrared emitter and the second infrared emitter emit infrared rays toward the eyes of the user, thereby respectively measuring a midpoint between the eyes of the user and the a distance between the first infrared emitter and the second infrared emitter to obtain a first distance L 1 and a second distance L 2 , and obtain a distance between the first infrared emitter and the second infrared emitter and define The third distance L 3 ; (12) is based on the first distance L 1 , the second distance L 2 and the third distance L 3 to obtain an angle ⁇ of the display screen viewed by the user.
  • the method for measuring the first distance L 1 and the second distance L 2 specifically includes: detecting, by the first infrared emitter, distances a 1 and b 1 of the first infrared emitter to two eyes of the user and the first user to two infrared emitters of two infrared angle ⁇ 1, according to the distance a 1, b 1, and an angle ⁇ 1 to calculate the first distance L 1; second by the An infrared emitter detects a distance a 2 and b 2 of the second infrared emitter to the eyes of the user, and an angle ⁇ 2 between the two infrared emitters to the two infrared rays of the user's eyes, according to the distance a 2 , b 2 and the angle ⁇ 2 calculate the second distance L 2 .
  • the method for calculating the first distance L 1 according to the distances a 1 , b 1 and the angle ⁇ 1 is specifically: according to a formula
  • the method for calculating the second distance L 2 according to the distances a 2 , b 2 and the angle ⁇ 2 is specifically: according to a formula
  • the second distance L 2 is calculated.
  • the method for the user to look at the angle ⁇ of the display screen according to the first distance L 1 , the second distance L 2 and the third distance L 3 is specifically: according to a formula
  • the angle ⁇ is the angle between the line of sight of the display screen and the normal of the display screen.
  • the present invention provides a device having a function of protecting vision, including a display screen, wherein the device having the function of protecting vision further comprises: a data acquisition acquisition module and a processing module, the data The obtaining module is configured to obtain an angle of the user to view the display screen to obtain perspective data; the processing module is configured to determine whether the perspective data is within a preset security range, and if so, control the display to be normally displayed, if not Start the corresponding protection reminder.
  • the data acquisition module obtains the angle of the display screen by the user to obtain the angle of view data, and then determines, by the processing module, whether the angle of view data is within a preset security range, and Controlling, according to the judgment result, that the display screen is normally displayed or the corresponding protection reminder is activated, It can accurately collect the user's perspective data, and can give the user a corresponding protection reminder to better protect the user's vision, and the operation is simpler and more convenient, so that the user can get a more comfortable and effective user experience.
  • the data acquisition module includes: a measurement unit, a first calculation unit, and a second calculation unit, the measurement unit includes a first infrared emitter and a second infrared emitter, and is detected by the first infrared emitter a distance a 1 and b 1 between the first infrared emitter and the user's eyes, and an angle ⁇ 1 between the first infrared emitter and the two infrared rays of the user's eyes; detecting by the second infrared emitter Describe the distances a 2 and b 2 of the second infrared emitter to the eyes of the user, and the angle ⁇ 2 between the two infrared emitters to the two infrared rays of the eyes of the user; and obtain the first by the measuring unit a distance between the infrared emitter and the second infrared emitter and defining it as a third distance L 3 ; the first calculating unit calculates the distance between the eyes of the user according to the distances
  • the formulas for calculating the first distance L 1 and the second distance L 2 by the first calculating unit are:
  • the second calculating unit calculates a formula for the user to see the angle ⁇ of the display screen as:
  • the processing module includes: a determining unit and an executing unit, the determining unit determining whether the view data is within a preset security range; and the executing unit controlling the display according to the determining result of the determining unit The screen displays or activates the corresponding protection reminder.
  • FIG. 1 is a flow chart of a method of protecting vision according to the present invention.
  • FIG. 2 is a schematic diagram showing the geometric principle of the present invention for measuring the distance between the midpoint between the two eyes of the user and the first infrared emitter and the second infrared emitter to obtain the first distance L 1 and the second distance L 2 .
  • FIG. 3 is a schematic diagram showing the geometric principle of the user looking at the angle ⁇ of the display screen according to the first distance L 1 , the second distance L 2 and the third distance L 3 .
  • FIG. 4 is a structural block diagram of a method of protecting vision according to the present invention.
  • a method 100 for protecting vision is applicable to a device having a display screen, comprising the steps of: (11) acquiring, by a first infrared emitter and a second infrared emitter of the device, a user to view the display screen The angle is obtained to obtain the angle of view data; (12) determining whether the angle of view data is within a preset safety range, and if so, executing (13) controlling the normal display of the display screen, and if otherwise executing (14), starting the corresponding protection reminder.
  • the solution acquires the angle of the display screen by the first infrared emitter and the second infrared emitter of the device to obtain the angle of view data, and determines whether the angle of view data is within a preset safety range, and then judges according to the judgment.
  • the control display screen is normally displayed or the corresponding protection reminder is activated, and the user's perspective data can be accurately collected, and the user can be given a corresponding protection reminder to better protect the user's vision, and the operation is simpler and more convenient, thereby enabling the user to obtain A more comfortable and effective user experience.
  • C 1 is the first infrared emitters
  • C 2 is the second infrared emitter
  • a and B are two users
  • D is the midpoint of two users
  • ⁇ is the
  • the straight line OD is the line of sight of the display screen ⁇
  • the line OZ is the normal line of the display screen ⁇
  • the line OX is in the same plane as the display screen ⁇ .
  • the step (11) specifically includes: (a) the first infrared emitter C 1 and the second infrared emitter C 2 emit infrared rays toward the eyes A and B of the user, thereby respectively measuring between the two eyes A and B of the user.
  • the second distance L 2 is the distance corresponding to the line segment C 2 D in FIG. 2 or FIG. 3, and acquiring the first infrared emitter C 1 and the second infrared emitter C
  • the distance between 2 and defines it as the third distance L 3 that is, the third distance L 3 is the distance corresponding to the line segment C 1 C 2 in FIG. 2 or FIG. 3; and (b) according to the first distance L 1, Two distance L 2 and L 3 derived from the third user to see the display screen angle ⁇ ⁇ . More specifically, as follows:
  • the method of L 1 to the first distance measurement comprises: a distance C 1 is detected by the first infrared emitter of the first infrared emitter a C 1 to two users A and B, a 1 and b 1, And an angle ⁇ 1 between the first infrared emitter C 1 and the two infrared rays of the two eyes A and B of the user (ie, two straight lines of the line segment C 1 A and the line segment C 1 B), corresponding to FIG.
  • the distance a 1 is the distance of the line segment C 1 A
  • the distance b 1 is the distance of the line segment C 1 B
  • the angle ⁇ 1 is the angle between the line segment C 1 A and the line segment C 1 B
  • the distance a according to the distance a 1, b 1, and an angle ⁇ 1 to calculate the first distance of L 1
  • the method is specifically as follows: corresponding to Figure 2 and according to the formula
  • the first distance L 1 is calculated.
  • the method comprises measuring a second distance L 2 said: distance C 2 detected by the second infrared emitter of the infrared emitter of the second C 2 to two users A and B, a 2 and b 2, And an angle ⁇ 2 between the two infrared emitters C 2 to the two infrared rays of the two eyes A and B of the user (ie, the two straight lines of the line segment C 2 A and the line segment C 2 B), corresponding to FIG.
  • the distance a 2 is the distance of the line segment C 2 A
  • the distance b 2 is the distance of the line segment C 2 B
  • the angle ⁇ 2 is the angle between the line segment C 2 A and the line segment C 2 B
  • 2 b 2 and the second angle ⁇ 2 is calculated from the distance L 2 a, and in this embodiment, according to the distance a 2, b 2, and an angle ⁇ 2 calculates the distance L 2 of the second
  • the method is specifically as follows: corresponding to Figure 2 and according to the formula
  • the second distance L 2 is calculated.
  • the method for the user to look at the angle ⁇ of the display screen ⁇ according to the first distance L 1 , the second distance L 2 and the third distance L 3 is specifically: corresponding to FIG. 3 and according to the formula
  • the angle ⁇ of the display screen ⁇ is calculated by the user, and the angle ⁇ is the angle ⁇ between the line of sight OD of the display screen ⁇ and the normal line OZ of the display screen ⁇ .
  • the preset safety range of the angle ⁇ of the display screen by the user is greater than or equal to -50° and less than or equal to +50°, and it is noted that the preset safety range is The normal line OZ of the display screen ⁇ is a baseline. If the angle of the angle located on the side of the normal line OZ is defined as a positive value, the angle of the angle located on the other side of the normal line OZ is defined as a negative value.
  • the preset security range may also be set by the manufacturer or set by the user according to specific usage requirements to meet different usage requirements of different users.
  • the protection reminder comprises a display of the display alpha alpha blurred display and/or a sound that the device emits a prompt and/or the display screen is turned off.
  • the display screen ⁇ blur display, the sound of the device being prompted, and the display screen ⁇ being turned off may be activated.
  • the function of protecting the user's vision is to prevent the user from correcting the state of use of the device.
  • different types of the protection reminder may be combined with each other, for example, the user.
  • the display screen ⁇ fuzzy display is first performed, and it is determined whether the time when the user sees the angle ⁇ of the display screen ⁇ exceeds the preset safety range exceeds the pre-predetermined time.
  • Setting a time threshold (the preset time threshold may be set by the manufacturer to a default threshold and/or a number of alternative thresholds, or may be set by the user), and if so, the display screen is executed
  • the display is turned off, and if not, it is returned, and the time is restarted when the user sees that the angle ⁇ of the display screen ⁇ exceeds the preset safety range. Therefore, the protection reminder is more humanized, so that the user can get a better user experience, that is, the specific implementation mode of the protection reminder can be set by the manufacturer or set by the user.
  • the device 200 with the vision protection function includes a display screen, wherein the device 200 with the vision protection function further includes: a data acquisition acquisition module 21 and a processing module 22, wherein the data acquisition module 21 is configured to acquire The user looks at the angle of the display screen to obtain the angle of view data; the processing module 22 is configured to determine whether the angle of view data is within a preset safety range, and if so, control the display screen to display normally, if otherwise, the corresponding protection is activated. remind.
  • the solution acquires the angle of the display screen by the user to obtain the angle of view data, and then determines, by the processing module 22, whether the angle of view data is within a preset security range, and controls the location according to the determination result.
  • the display display normally displays or activates the corresponding protection reminder, which can accurately collect the user's perspective data, and can give the user a corresponding protection reminder to better protect the user's vision, and the operation is simpler and more convenient, thereby enabling the user to get more Comfortable and effective user experience.
  • the data acquisition module 21 includes: a measurement unit 211, a first calculation unit 212, and a second calculation unit 213, where the measurement unit 211 includes a first infrared emitter and a second infrared emitter, An infrared emitter detects a distance a 1 and b 1 of the first infrared emitter to the eyes of the user, and an angle ⁇ 1 between the two infrared rays of the first infrared emitter to the eyes of the user; An infrared emitter detects a distance a 2 and b 2 of the second infrared emitter to the eyes of the user, and an angle ⁇ 2 between the two infrared emitters to the two infrared rays of the user's eyes; and passes the measuring unit 211 acquires the distance between the first and second infrared emitter and an infrared emitter which is defined as a third distance L 3; the first calculation unit 212 according to the distance a 1, b 1 and the angle
  • the specific measuring methods and principles of the distances a 1 , b 1 and the angle ⁇ 1 and the distances a 2 , b 2 and the angle ⁇ 2 in the embodiment are the same as the above-mentioned vision protecting the vision.
  • the specific measurement methods and principles of the distances a 1 , b 1 and the angle ⁇ 1 in the method 100 and the distances a 2 , b 2 and the angle ⁇ 2 are the same; and the first distance in the embodiment
  • the specific calculation method and principle of L 1 , the second distance L 2 and the angle ⁇ of the user looking at the display screen are the same as the first distance L 1 , the second distance L 2 and the user in the above-described method 100 for protecting vision according to the present invention. Look at the specific calculation method and principle of the angle ⁇ of the display screen, so it will not be described here.
  • the processing module 22 includes: a determining unit 221 and an executing unit 222, the determining unit 221 determining whether the view data is within a preset security range; and the executing unit 222 is configured according to the determining unit 221 The judgment result controls the display screen to display normally or perform a corresponding protection reminder.
  • the specific definition manner of the preset security range of the angle ⁇ of the display screen in the embodiment and the user in the method 100 for protecting vision according to the present invention are to look at the angle ⁇ of the display screen.
  • the specific definition of the security range is the same; and the specific embodiment of the protection reminder in the embodiment is also the same as the specific embodiment of the protection reminder in the method 100 for protecting vision according to the present invention. I will not repeat them here.

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Abstract

一种保护视力的方法，用于具有显示屏的设备，其包括步骤：（1）通过所述设备的第一红外发射器及第二红外发射器获取用户看所述显示屏的角度以获得视角数据（11）；（2）判断所述视角数据是否在预设的安全范围内（12），若是，则控制所述显示屏正常显示（13），若否，则启动对应的保护提醒（14）。该方法可以准确采集用户的视角数据，且能给予用户相应的保护提醒，以更好的保护视力，且操作简单方便，使用户得到更舒适有效的用户体验。

Description

保护视力的方法及具有保护视力功能的设备
本发明要求2013年11月5日递交的发明名称为“保护视力的方法及具有保护视力功能的设备”的申请号201310539614.2的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示设备领域，尤其涉及一种适用于具有显示屏之设备的保护视力的方法。
背景技术
随着社会经济的不断发展、科学技术的不断进步，人们的生活水平也日益提高，像电视、计算机和手机等具有显示屏的设备在人们的生活中也不断普及，成为了人们生活中必不可缺的必需品，与人们的日常生活的关系越来越密切，且随着人们追求健康生活的要求不断提高，人们对具有显示屏的设备所具备的健康保护功能也有了更高的要求。
众所周知，由于人们工作、娱乐及学习中都要经常面对上述的这些设备的显示屏，若使用不当，很容易导致用户视力疲劳，对用户的视力造成伤害。为了解决此问题，在现有的具有显示屏的设备中，包括电视、计算机和手机在内的显示屏的具有亮度可以自动或手动调节以提供给用户柔和的视觉感受，以保护用户的视力，但效果并不理想。即现有的具有显示屏的设备存在所具备的保护视力的功能极为简陋单一及所采集的用户使用状态数据误差大的缺点，对用户视力的保护效果并不理想，且操作繁琐，对用户的使用带来不便，严重影响了用户体验，已经远远不能满足用户的使用需求。
因此，急需一种能够克服上述缺陷的保护视力的方法及具有保护视力功能的设备。
发明内容
本发明的目的在于提供一种保护视力的方法，可以实现准确采集用户的视 角数据，以更好的保护用户视力，且操作更为简单方便，从而使用户得到更舒适有效的用户体验。
本发明的另一目的在于提供一种具有保护视力功能的设备，可以实现准确采集用户的视角数据，以更好的保护用户视力，且操作更为简单方便，从而使用户得到更舒适有效的用户体验。
为了实现上述目的，本发明提供了一种保护视力的方法，适用于具有显示屏的设备，包括以下步骤：(1)通过所述设备的第一红外发射器及第二红外发射器获取用户看所述显示屏的角度以获得视角数据；(2)判断所述视角数据是否在预设的安全范围内，若是则控制所述显示屏正常显示，若否则启动对应的保护提醒。
与现有技术相比，本发明通过所述设备的第一红外发射器及第二红外发射器获取用户看所述显示屏的角度以获得视角数据，并判断所述视角数据是否在预设的安全范围内，再根据判断结果控制显示屏正常显示或启动对应的保护提醒，可以实现准确采集用户的视角数据，且能给予用户相应的保护提醒，以更好的保护用户视力，且操作更为简单方便，从而使用户得到更舒适有效的用户体验。
较佳地，所述步骤(1)具体包括：(11)所述第一红外发射器和第二红外发射器朝用户两眼发射红外线，从而分别测量用户两眼之间的中点与所述第一红外发射器、第二红外发射器的距离以获得第一距离L1、第二距离L2，获取所述第一红外发射器及第二红外发射器之间的距离并将其定义为第三距离L3；(12)根据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的角度β。
较佳地，测量所述第一距离L1及第二距离L2的方法具体包括：通过所述第一红外发射器检测所述第一红外发射器至用户两眼的距离a1和b1，以及所述第一红外发射器至用户两眼的两红外线的夹角γ1，依据所述距离a1、b1及夹角γ1计算所述第一距离L1；通过所述第二红外发射器检测所述第二红外发射器至用 户两眼的距离a2和b2，以及所述第二红外发射器至用户两眼的两红外线的夹角γ2，依据所述距离a2、b2及夹角γ2计算所述第二距离L2。
较佳地，依据所述距离a1、b1及夹角γ1计算所述第一距离L1的方法具体为：根据公式
Figure PCTCN2014088230-appb-000001
计算得出所述第一距离L1；
依据所述距离a2、b2及夹角γ2计算所述第二距离L2的方法具体为：根据公式
Figure PCTCN2014088230-appb-000002
计算得出所述第二距离L2。
较佳地，根据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的角度β的方法具体为：根据公式
Figure PCTCN2014088230-appb-000003
计算得出用户看所述显示屏的角度β，夹角β为用户看所述显示屏的视线与所述显示屏的法线的夹角。
为了实现本发明的另一目的，本发明提供了一种具有保护视力功能的设备，包括显示屏，其中，所述具有保护视力功能的设备还包括：数据获取获取模块及处理模块，所述数据获取模块用于获取用户看所述显示屏的角度以获得视角数据；所述处理模块用于判断所述视角数据是否在预设的安全范围内，若是则控制所述显示屏正常显示，若否则启动对应的保护提醒。
与现有技术相比，本发明通过所述数据获取模块获取用户看所述显示屏的角度以获得视角数据，再通过所述处理模块判断所述视角数据是否在预设的安全范围内，并根据判断结果控制所述显示屏正常显示或启动对应的保护提醒， 可以实现准确采集用户的视角数据，且能给予用户相应的保护提醒，以更好的保护用户视力，且操作更为简单方便，从而使用户得到更舒适有效的用户体验。
较佳地，所述数据获取模块包括：测量单元、第一计算单元及第二计算单元，所述测量单元包括第一红外发射器及第二红外发射器，通过所述第一红外发射器检测所述第一红外发射器至用户两眼的距离a1和b1，以及所述第一红外发射器至用户两眼的两红外线的夹角γ1；通过所述第二红外发射器检测所述第二红外发射器至用户两眼的距离a2和b2，以及所述第二红外发射器至用户两眼的两红外线的夹角γ2；并通过所述测量单元获取所述第一红外发射器及第二红外发射器之间的距离并将其定义为第三距离L3；所述第一计算单元依据所述距离a1、b1及夹角γ1计算用户两眼之间的中点与所述第一红外发射器的第一距离L1，及依据所述距离a2、b2及夹角γ2计算用户两眼之间的中点与所述第二红外发射器的第二距离L2；所述第二计算单元依据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的视线与所述显示屏的法线的夹角β，该夹角β即为用户看所述显示屏的角度，从而获得视角数据。
较佳地，所述第一计算单元计算所述第一距离L1及第二距离L2的公式分别为：
Figure PCTCN2014088230-appb-000004
Figure PCTCN2014088230-appb-000005
较佳地，所述第二计算单元计算用户看所述显示屏的角度β的公式为：
Figure PCTCN2014088230-appb-000006
较佳地，所述处理模块包括：判断单元及执行单元，所述判断单元判断所述视角数据是否在预设的安全范围内；所述执行单元根据所述判断单元的判断结果控制所述显示屏正常显示或启动对应的保护提醒。
附图说明
图1是本发明所述保护视力的方法的流程图。
图2是本发明测量用户两眼之间的中点与所述第一红外发射器、第二红外发射器的距离以获得第一距离L1、第二距离L2的几何原理示意图。
图3是本发明根据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的角度β的几何原理示意图。
图4是本发明所述保护视力的方法的结构框图。
具体实施方式
为详细说明本发明的技术内容、构造特征、所实现目的及效果，以下结合实施方式并配合附图详予说明。
参考图1，本发明保护视力的方法100，适用于具有显示屏的设备，包括以下步骤：(11)通过所述设备的第一红外发射器及第二红外发射器获取用户看所述显示屏的角度以获得视角数据；(12)判断所述视角数据是否在预设的安全范围内，若是则执行(13)控制所述显示屏正常显示，若否则执行(14)启动对应的保护提醒。该方案通过所述设备的第一红外发射器及第二红外发射器获取用户看所述显示屏的角度以获得视角数据，并判断所述视角数据是否在预设的安全范围内，再根据判断结果控制显示屏正常显示或启动对应的保护提醒，可以实现准确采集用户的视角数据，且能给予用户相应的保护提醒，以更好的保护用户视力，且操作更为简单方便，从而使用户得到更舒适有效的用户体验。具体地，如下：
参考图2及图3，C1为所述第一红外发射器，C2为所述第二红外发射器，A和B分别为用户两眼，D为用户两眼的中点，α为所述显示屏，则直线OD为用户看所述显示屏α的视线，直线OZ为所述显示屏α的法线，直线OX为与所述显示屏α在同一平面，则在本实施例中，所述步骤(11)具体包括：(a)所述第一红外发射器C1和第二红外发射器C2朝用户两眼A和B发射红外线，从而分别测量用户两眼A和B之间的中点D与所述第一红外发射器C1、第二 红外发射器C2的距离以获得第一距离L1、第二距离L2，即所述第一距离L1为对应图2或图3中线段C1D的距离，所述第二距离L2为对应图2或图3中线段C2D的距离，获取所述第一红外发射器C1及第二红外发射器C2之间的距离并将其定义为第三距离L3，即所述第三距离L3为对应图2或图3中线段C1C2的距离；以及(b)根据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏α的角度β。更具体地，如下：
其中，测量所述第一距离L1的方法具体包括：通过所述第一红外发射器C1检测所述第一红外发射器C1至用户两眼A和B的距离a1和b1，以及所述第一红外发射器C1至用户两眼A和B的两红外线(即线段C1A及线段C1B所在两直线)的夹角γ1，对应于图2，所述距离a1为线段C1A的距离，所述距离b1为线段C1B的距离，所述夹角γ1为线段C1A与线段C1B之间的夹角，则即可依据所述距离a1、b1及夹角γ1计算所述第一距离L1，且在本实施例中，依据所述距离a1、b1及夹角γ1计算所述第一距离L1的方法具体为：对应图2及根据公式
Figure PCTCN2014088230-appb-000007
计算得出所述第一距离L1。
同时，测量所述第二距离L2的方法具体包括：通过所述第二红外发射器C2检测所述第二红外发射器C2至用户两眼A和B的距离a2和b2，以及所述第二红外发射器C2至用户两眼A和B的两红外线(即线段C2A及线段C2B所在两直线)的夹角γ2，对应于图2，所述距离a2为线段C2A的距离，所述距离b2为线段C2B的距离，所述夹角γ2为线段C2A与线段C2B之间的夹角，则即可依据所述距离a2、b2及夹角γ2计算所述第二距离L2，且在本实施例中，依据所述距离a2、b2及夹角γ2计算所述第二距离L2的方法具体为：对应图2及根据公式
Figure PCTCN2014088230-appb-000008
计算得出所述第二距离L2。
再者，根据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏α的角度β的方法具体为：对应图3及根据公式
Figure PCTCN2014088230-appb-000009
计算得出用户看所述显示屏α的角度β，夹角β为用户看所述显示屏α的视线OD与所述显示屏α的法线OZ的夹角β。
详细而言，在本实施例中，用户看所述显示屏的角度β之预设的安全范围为大于等于-50°且小于等于+50°，值得注意者，该预设的安全范围为以所述显示屏α的法线OZ为基线，若位于所述法线OZ一侧的夹角的角度定义为正值，则位于所述法线OZ另一侧的夹角的角度定义为负值；当然，在不同的实施例中，该预设的安全范围还可以根据具体的使用需求由生产厂商设定或用户自行设定，以满足不同用户的不同使用需求。所述保护提醒较优为包括所述显示屏α模糊显示和/或所述设备发出提示的声音和/或所述显示屏关闭显示。详细而言，当用户看所述显示屏α的角度β超出预设的安全范围时，可以启动所述显示屏α模糊显示、所述设备发出提示的声音及所述显示屏α关闭显示中的一者、以警告用户纠正对所述设备的使用状态，起到保护用户视力的作用，当然，在不同的实施例中，所述保护提醒中的不同类型还可以相互结合，举例而言，用户看所述显示屏α的角度β超出预设的安全范围时，先执行所述显示屏α模糊显示，并判断用户看所述显示屏α的角度β超出预设的安全范围的时间是否超过预设时间阀值(该预设时间阀值可以由生产厂家设定一默认阀值和/或若干个供选择的阀值，也可以由用户自行设定)，若是，则执行所述显示屏α关闭显示，若否，则返回，在用户看所述显示屏α的角度β超出预设的安全范围重新开始计时。从而使保护提醒更为人性化，使用户能够得到更好的用户体验，即所述保护提醒的具体实施模式可以由生产厂家进行设定或由用户自行设定。
参考图4，本发明具有保护视力功能的设备200包括显示屏，其中，本发明具有保护视力功能的设备200还包括：数据获取获取模块21及处理模块22，所述数据获取模块21用于获取用户看所述显示屏的角度以获得视角数据；所述处理模块22用于判断所述视角数据是否在预设的安全范围内，若是则控制所述显示屏正常显示，若否则启动对应的保护提醒。该方案通过所述数据获取模块21获取用户看所述显示屏的角度以获得视角数据，再通过所述处理模块22判断所述视角数据是否在预设的安全范围内，并根据判断结果控制所述显示屏正常显示或启动对应的保护提醒，可以实现准确采集用户的视角数据，且能给予用户相应的保护提醒，以更好的保护用户视力，且操作更为简单方便，从而使用户得到更舒适有效的用户体验。
较优者，所述数据获取模块21包括：测量单元211、第一计算单元212及第二计算单元213，所述测量单元211包括第一红外发射器及第二红外发射器，通过所述第一红外发射器检测所述第一红外发射器至用户两眼的距离a1和b1，以及所述第一红外发射器至用户两眼的两红外线的夹角γ1；通过所述第二红外发射器检测所述第二红外发射器至用户两眼的距离a2和b2，以及所述第二红外发射器至用户两眼的两红外线的夹角γ2；并通过所述测量单元211获取所述第一红外发射器及第二红外发射器之间的距离并将其定义为第三距离L3；所述第一计算单元212依据所述距离a1、b1及夹角γ1计算用户两眼之间的中点与所述第一红外发射器的第一距离L1，及依据所述距离a2、b2及夹角γ2计算用户两眼之间的中点与所述第二红外发射器的第二距离L2；所述第二计算单元213依据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的视线与所述显示屏的法线的夹角β，该夹角β即为用户看所述显示屏的角度，从而获得视角数据。
其中，在本实施例中的所述距离a1、b1和夹角γ1及所述距离a2、b2和夹角γ2的具体测量方法及原理均与上述的本发明保护视力的方法100中的所述距离a1、b1和夹角γ1，以及所述距离a2、b2和夹角γ2的具体测量方法及原理相同； 且在本实施例中的第一距离L1、第二距离L2和用户看所述显示屏的角度β之具体计算方法及原理均与上述的本发明保护视力的方法100中的第一距离L1、第二距离L2和用户看所述显示屏的角度β之具体计算方法及原理，故在此不再赘述。
较优者，所述处理模块22包括：判断单元221及执行单元222，所述判断单元221判断所述视角数据是否在预设的安全范围内；所述执行单元222根据所述判断单元221的判断结果控制所述显示屏正常显示或执行对应的保护提醒。
其中，在本实施例中的用户看所述显示屏的角度β之预设的安全范围的具体定义方式与上述的本发明保护视力的方法100中的用户看所述显示屏的角度β之预设的安全范围的具体定义方式相同；且，在本实施例中的所述保护提醒的具体实施方式也与上述的本发明保护视力的方法100中的所述保护提醒的具体实施方式相同，故在此不再赘述。
以上所揭露的仅为本发明的优选实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明申请专利范围所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

  1. 一种保护视力的方法，适用于具有显示屏的设备，其特征在于，包括以下步骤：
    (1)通过所述设备的第一红外发射器及第二红外发射器获取用户看所述显示屏的角度以获得视角数据；
    (2)判断所述视角数据是否在预设的安全范围内，若是则控制所述显示屏正常显示，若否则启动对应的保护提醒。
  2. 根据权利要求1所述的保护视力的方法，其特征在于，所述步骤(1)具体包括：
    (11)所述第一红外发射器和第二红外发射器朝用户两眼发射红外线，从而分别测量用户两眼之间的中点与所述第一红外发射器、第二红外发射器的距离以获得第一距离L1、第二距离L2，获取所述第一红外发射器及第二红外发射器之间的距离并将其定义为第三距离L3；
    (12)根据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的角度β。
  3. 根据权利要求2所述的保护视力的方法，其特征在于，测量所述第一距离L1及第二距离L2的方法具体包括：
    通过所述第一红外发射器检测所述第一红外发射器至用户两眼的距离a1和b1，以及所述第一红外发射器至用户两眼的两红外线的夹角γ1，依据所述距离a1、b1及夹角γ1计算所述第一距离L1；
    通过所述第二红外发射器检测所述第二红外发射器至用户两眼的距离a2和b2，以及所述第二红外发射器至用户两眼的两红外线的夹角γ2，依据所述距离a2、b2及夹角γ2计算所述第二距离L2。
  4. 根据权利要求3所述的保护视力的方法，其特征在于，依据所述距离a1、b1及夹角γ1计算所述第一距离L1的方法具体为：根据公式
    Figure PCTCN2014088230-appb-100001
    计算得出所述第一距离L1；
    依据所述距离a2、b2及夹角γ2计算所述第二距离L2的方法具体为：根据公式
    Figure PCTCN2014088230-appb-100002
    计算得出所述第二距离L2。
  5. 根据权利要求2所述的保护视力的方法，其特征在于，根据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的角度β的方法具体为：根据公式
    Figure PCTCN2014088230-appb-100003
    计算得出用户看所述显示屏的角度β，夹角β为用户看所述显示屏的视线与所述显示屏的法线的夹角。
  6. 一种具有保护视力功能的设备，包括显示屏，其特征在于，还包括：
    数据获取模块：用于获取用户看所述显示屏的角度以获得视角数据；
    处理模块：用于判断所述视角数据是否在预设的安全范围内，若是则控制所述显示屏正常显示，若否则启动对应的保护提醒。
  7. 根据权利要求6所述的具有保护视力功能的设备，其特征在于，所述 数据获取模块包括：
    测量单元：包括第一红外发射器及第二红外发射器，通过所述第一红外发射器检测所述第一红外发射器至用户两眼的距离a1和b1，以及所述第一红外发射器至用户两眼的两红外线的夹角γ1；通过所述第二红外发射器检测所述第二红外发射器至用户两眼的距离a2和b2，以及所述第二红外发射器至用户两眼的两红外线的夹角γ2；
    并通过所述测量单元获取所述第一红外发射器及第二红外发射器之间的距离并将其定义为第三距离L3；
    第一计算单元：依据所述距离a1、b1及夹角γ1计算用户两眼之间的中点与所述第一红外发射器的第一距离L1，及依据所述距离a2、b2及夹角γ2计算用户两眼之间的中点与所述第二红外发射器的第二距离L2；
    第二计算单元：依据所述第一距离L1、第二距离L2及第三距离L3得出用户看所述显示屏的视线与所述显示屏的法线的夹角β，该夹角β即为用户看所述显示屏的角度，从而获得视角数据。
  8. 根据权利要求7所述的具有保护视力功能的设备，其特征在于，所述第一计算单元计算所述第一距离L1及第二距离L2的公式分别为：
    Figure PCTCN2014088230-appb-100004
    Figure PCTCN2014088230-appb-100005
  9. 根据权利要求7所述的具有保护视力功能的设备，其特征在于，所述第二计算单元计算用户看所述显示屏的角度β的公式为：
    Figure PCTCN2014088230-appb-100006
  10. 根据权利要求6所述的具有保护视力功能的设备，其特征在于，所述处理模块包括：
    判断单元：判断所述视角数据是否在预设的安全范围内；
    执行单元：根据所述判断单元的判断结果控制所述显示屏正常显示或启动对应的保护提醒。
PCT/CN2014/088230 2013-11-04 2014-10-09 保护视力的方法及具有保护视力功能的设备 Ceased WO2015062396A1 (zh)

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