CN104240680A - Method for adjusting brightness of touch screen and touch display device - Google Patents
Method for adjusting brightness of touch screen and touch display device Download PDFInfo
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Abstract
The embodiment of the invention relates to the field of display, in particular to a method for adjusting the brightness of a touch screen and a touch display device, wherein the method and the device are used for reducing the variation quantity of the brightness of the screen when a user carries out screen touch operations. The method comprises the following steps that the brightness of ambient light around the touch screen is detected periodically; if the ratio of the ambient light brightness detected in the current period to the ambient light brightness detected in the previous period is smaller than a set threshold value, the brightness of the touch screen is reduced to a second brightness level from a first brightness level; in a first preset length of time, if the screen touch operations are detected, the brightness of the touch screen is reduced to a third brightness level from the second brightness level. Due to the mode that the brightness of the touch screen is adjusted twice, the variation quantity of the brightness of the screen is reduced when the user gets close to the touch screen and carries out the screen touch operations; furthermore, because the variation quantity of the brightness of the screen is reduced when the user carriers out the screen touch operations, the injury caused by the touch screen to eyes is relieved when the user carries out the screen touch operations.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of method and touch control display apparatus of touch-screen brightness adjustment.
Background technology
The operations such as touch control display apparatus can also carry out writing except the content that presents needed for display, drawing, are widely used in the industries such as meeting, commander, exhibition and education.
Touch-screen in touch control display apparatus is that the viewing adapting to spectators generally all has higher brightness, in prior art, when detecting that someone carries out contact action, the brightness of touch-screen can be reduced to from high brightness the low intensity range that human eye can accept, and can not damage when closely writing to make operator because screen intensity is too high to eyes.
Inventor finds, in practical operation, when operator starts to operate on the touchscreen, human eye is Close approach touch-screen, and now screen is just reduced to low-light level from high brightness by touch-screen, the screen intensity variable quantity that in this process, human eye closely experiences is comparatively large, easily to eye damage.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus of touch-screen brightness adjustment, in order to reduce the luminance delta of user's screen when carrying out contact action.
The embodiment of the present invention provides a kind of touch-screen luminance regulating method, comprises the following steps:
Periodically detecting touch-screen surrounding environment luminance brightness; If the ratio of the environmental light brightness that current period detects and the environmental light brightness that the last cycle detects is less than setting threshold value, then described touch-screen brightness is reduced to the second brightness from the first brightness; Wherein, the described span of threshold value that sets is as (0,1);
In the first duration, if contact action detected, then described touch-screen brightness is reduced to the 3rd brightness from the second brightness.
Preferably, described by described touch-screen brightness from after the first brightness is reduced to the second brightness, also comprise:
If contact action do not detected in the first duration, then described touch-screen brightness is increased to the first brightness from the second brightness.
Preferably, described by described touch-screen brightness from after the second brightness is reduced to the 3rd brightness, also comprise:
If contact action do not detected in the second duration, then described touch-screen brightness is increased to the first brightness from the 3rd brightness.
Preferably, described periodicity detecting touch-screen surrounding environment luminance brightness, is specially:
Described described touch-screen brightness is reduced to the second brightness from the first brightness before, by first frequency periodically detecting touch-screen surrounding environment luminance brightness; By described touch-screen brightness from after the first brightness is reduced to the second brightness, first frequency is brought up to second frequency, and by second frequency periodically detecting touch-screen surrounding environment luminance brightness, wherein said second frequency is greater than described first frequency.
Preferably, described described touch-screen brightness is reduced to the second brightness from the first brightness, is specially: by first rate, described touch-screen brightness is reduced to the second brightness from the first brightness;
Described described touch-screen brightness is reduced to the 3rd brightness from the second brightness, is specially: by the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness;
Wherein, the second speed is less than first rate.
The embodiment of the present invention provides a kind of touch control display apparatus, comprising: touch-screen, also comprises:
First detecting unit, for periodically detecting touch-screen surrounding environment luminance brightness;
Second detecting unit, for detecting contact action;
Adjustment unit, if the ratio of environmental light brightness that the environmental light brightness detected for current period and last cycle detect is less than setting threshold value, is then reduced to the second brightness by described touch-screen brightness from the first brightness; Also in touch-screen brightness from the first duration after the first brightness is reduced to the second brightness, if contact action detected, then described touch-screen brightness is reduced to the 3rd brightness from the second brightness.
Preferably, described first detecting unit, specifically for:
Described described touch-screen brightness is reduced to the second brightness from the first brightness before, by first frequency periodically detecting touch-screen surrounding environment luminance brightness; By described touch-screen brightness from after the first brightness is reduced to the second brightness, first frequency is brought up to second frequency, by second frequency periodically detecting touch-screen surrounding environment luminance brightness; Wherein, described second frequency is greater than described first frequency.
Preferably, described adjustment unit, also for:
If in described touch-screen brightness from the first duration after the first brightness is reduced to the second brightness, contact action do not detected, then described touch-screen brightness be increased to the first brightness from the second brightness;
If detect by described touch-screen brightness in the second duration after the second brightness is reduced to the 3rd brightness without contact action, then described touch-screen brightness is increased to the first brightness from the 3rd brightness.
Preferably, described adjustment unit, specifically for:
By first rate, described touch-screen brightness is reduced to the second brightness from the first brightness;
By the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness;
Wherein, the second speed is less than first rate.
When user is close to touch-screen, environmental light brightness around touch-screen can reduce, in the embodiment of the present invention, by periodically detecting the environmental light brightness around touch-screen, when environmental light brightness reduces, described touch-screen brightness is reduced to the second brightness from the first brightness, if detect in the first preset duration afterwards, user starts to carry out contact action, be then reduced to the 3rd brightness by described touch-screen brightness from the second brightness.So, user near touch-screen time, the brightness of touch-screen can be reduced in advance, when user carries out closely touch operation, then touch-screen brightness is reduced to predetermined luminance further, by the mode of twice adjustment touch-screen brightness, reduce the luminance delta of user's screen when carrying out closely contact action, further, due to the reduction of user's luminance delta of screen when carrying out contact action, thus alleviate user when contact action touch-screen to eye damage.
Accompanying drawing explanation
Fig. 1 provides a kind of touch-screen luminance regulating method for the embodiment of the present invention;
Fig. 2 provides a kind of touch-screen brightness adjusting device for the embodiment of the present invention;
Fig. 3 provides a kind of touch-screen brightness adjusting device for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method and apparatus of touch-screen brightness adjustment.User near touch-screen time, meeting shield portions light, touch-screen surrounding environment is reduced, in the embodiment of the present invention, when detecting that surrounding environment luminance brightness reduces, described touch-screen brightness is reduced to the second brightness from the first brightness, and when detecting that user starts to carry out contact action, described touch-screen brightness is reduced to the 3rd brightness from the second brightness reduced.So, the luminance delta of user's screen when carrying out contact action is the variable quantity from the second brightness to the 3rd brightness, visible, by the mode of twice adjustment touch-screen brightness, reduce the luminance delta of user's screen when carrying out contact action, further, due to the reduction of user's luminance delta of screen when carrying out contact action, thus alleviate user when contact action touch-screen to eye damage.
In order to make object of the present invention, technical scheme and beneficial effect better clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The method that the embodiment of the present invention provides is applicable to the touch-screen under several scenes, as meeting, commander, exhibition and education etc.The embodiment of the present invention is that example is described based on education scene, what adopt in education scene is interactive touch all-in-one, when teacher closely carries out contact action, need lower brightness, to reduce the injury to contact action person eyes, and student watches touch-screen at a distance, then need higher brightness, clear to ensure that it can be seen.
The first brightness that user can arrange interactive touch all-in-one is normal display brightness, and the second brightness is fill light display mode, and the 3rd brightness is darker display brightness.Wherein, the brightness value of the first brightness is greater than the brightness value of the second brightness, and the brightness value of the second brightness is greater than the brightness value of the 3rd brightness.
Based on above-mentioned application scenarios, the embodiment of the present invention provides a kind of touch-screen luminance regulating method, as shown in Figure 1, comprises the following steps:
Step 101, periodically detecting touch-screen surrounding environment luminance brightness;
Step 102, if the ratio of environmental light brightness that the environmental light brightness that detects of current period and last cycle detect is less than setting threshold value, is then reduced to the second brightness by described touch-screen brightness from the first brightness; Wherein, the described span of threshold value that sets is as (0,1);
Step 103, presetting in the first duration, if contact action detected, is then reduced to the 3rd brightness by described touch-screen brightness from the second brightness; Presetting the first duration is from a period of time after the first brightness is reduced to the second brightness by described touch-screen brightness.
In the present embodiment, interactive touch TV integrated machine is provided with touch-screen, on interactive touch TV integrated machine, add the first detecting unit simultaneously, detect in order to carry out periodicity to the brightness of surrounding environment light, whether dimmed with the surround lighting detecting surrounding environment.First detecting unit can be camera, also can be visible ray light sensitive device, infrared light light sensitive device.Concrete, light sensitive device or camera can be arranged in the surrounding of interactive touch TV integrated machine, or any in surrounding, or any several limit in surrounding, and described first detecting unit can comprise multiple detection sub-unit.When described first detecting unit comprises multiple detection sub-unit, described environmental light brightness is the mean value of the environmental light brightness that described multiple detection sub-unit detects.Interactive touch TV integrated machine also arranges touch control component, whether carries out touch control operation in order to periodically to detect user.
In a step 101, adopt the first detecting unit to detect the environmental light brightness around touch-screen.
Concrete, when touch-screen is in running order, the first detecting unit presses first frequency periodically to the periodically detecting of the environmental light brightness around touch-screen.Preferably, first frequency can arrange smaller, mitigation system resource consumption, and such as, first frequency can be set to 5Hz.
In a step 102, if the ratio of environmental light brightness that the environmental light brightness that detects of current period and last cycle detect is less than setting threshold value, then described touch-screen brightness is reduced to the second brightness from the first brightness; Wherein, the described span of threshold value that sets is as (0,1).
When the first detecting unit is light sensitive device, due to user near interactive touch TV integrated machine time, can produce light sensitive device and block, therefore whether change judged whether that people is close by detecting surrounding environment luminance brightness.Concrete, the environmental light brightness that the current period environmental light brightness detected and last cycle detect is compared, when the ratio of the environmental light brightness that current period detects and the environmental light brightness that the last cycle detects be less than set threshold value time, confirm to detect that the brightness of touch-screen surrounding environment is dimmed.Wherein, the described span of threshold value that sets is as (0,1).Such as, setting threshold value is 0.5, when the ratio of the environmental light brightness then detected when the environmental light brightness detected and last cycle is less than 0.5, namely illustrate that current ambient environmental light is secretly more a lot of than surrounding environment light during front one-time detection, now confirm to detect that the brightness of touch-screen surrounding environment is dimmed, light sensitive device is blocked, and in teaching scene, namely may be that teacher walks close to touch-screen.
Preferably, when the first detecting unit is camera, after detecting that surrounding environment luminance brightness reduces, also by face identification functions, determine that surrounding environment light is dimmed whether because there is people close further.
If the ratio of the environmental light brightness that current period detects and the environmental light brightness that the last cycle detects is not less than when setting threshold value, then prove that current ambient environmental light is secretly not a lot of than surrounding environment light during front one-time detection, also may be that current ambient environmental light brightens, now confirm to detect that the brightness of touch-screen surrounding environment is not dimmed, then keep current state, do not do any operation.
When detecting that the brightness of touch-screen surrounding environment is dimmed, by first rate, described touch-screen brightness is reduced to the second brightness from the first brightness.Due to human eye higher to brightness time change insensitive, therefore first rate can be set as larger value, described touch-screen brightness is reduced to the second brightness from the first brightness linear.Adopt this kind of scheme brightness can be reduced rapidly before teacher closely performs touch operation, and the second brightness is fill light pattern, namely the touch-screen brightness of interactive touch all-in-one can ensure the viewing effect of student.
The environmental light brightness detected by some subelements when described surround lighting is dimmed in first detecting unit or the first detecting unit subtracts secretly.In the present embodiment, it is disposable adjustment that touch-screen is reduced to the second brightness from the first brightness, namely, when the ratio of the brightness value of the surround lighting of current period and the brightness value of the surround lighting in last cycle is less than predetermined threshold value, touch-screen is reduced to the second brightness from the first brightness.If fruit after the adjustment environmental light brightness continues dimmed, the touch-screen brightness in the present embodiment does not need the adjustment doing brightness yet.
In step 103, periodically detect whether there is touch control operation by the second detecting unit on interactive touch all-in-one, in described touch-screen brightness from presetting in the first duration after the first brightness is reduced to the second brightness, if contact action detected, by the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness; Wherein, the second speed is less than first rate.
Specifically, when contact action having been detected, human eye closely near touch-screen, if now light variable quantity is excessive, too fast, then still to have damaged human eye.By the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness in the embodiment of the present invention, it is less that the second speed can be arranged, and the second rate value can be set to smooth curve, to reach the object slowly reducing touch-screen brightness.Alleviate brightness adjustment too fast time spinning sensation that human body is caused; owing to being reduced to the second brightness through touch-screen brightness before; therefore; the difference of the second brightness herein and the 3rd brightness is less; thus reach the object of protection contact action person eyes; wherein the second detecting unit can be the capacitance component in touch-screen, also can be the resistor assembly in touch-screen, can also be the infrared touch frame of infrared touch panel.
Preferably, when not detecting that environmental light brightness is dimmed, before described touch-screen brightness is reduced to the second brightness from the first brightness, by first frequency periodically detecting touch-screen surrounding environment luminance brightness; When detecting that environmental light brightness is dimmed, described touch-screen brightness is reduced to the second brightness from the first brightness, first frequency is brought up to second frequency simultaneously, and press second frequency periodically detecting touch-screen surrounding environment luminance brightness, second frequency can be set to 100Hz.Adopt the higher scheme of second frequency after touch-screen is from the first brightness adjustment to the second brightness, the change of surrounding environment light can be judged rapidly, if environmental light brightness remains unchanged, touch-screen brightness is not adjusted, if environmental light brightness increases, then show to promote brightness of display screen rapidly, to reduce the erroneous judgement caused because foreign matter (as: winged insect etc.) blocks sensor.
If by described touch-screen brightness from the first time period after the first brightness is reduced to the second brightness, contact action do not detected, then described touch-screen brightness be increased to the first brightness from the second brightness.For example, when by teacher through touch-screen front, cause touch-screen surrounding environment dimmed, the brightness of touch-screen is reduced to the second brightness from the first brightness, but teacher does not carry out touch control operation, therefore can recover touch-screen brightness to the first brightness after preset duration.
Preferably, described by described touch-screen brightness from after the second brightness is reduced to the 3rd brightness, if to detect in the second duration without contact action, then described touch-screen brightness is increased to the first brightness from the 3rd brightness.For example, be a teacher and write word, then turn round and tell about with student, now student needs remote viewing, and touch-screen brightness is increased to the first brightness from the 3rd brightness.Preferably, touch-screen brightness can be increased to the second brightness from the 3rd brightness, then is increased to the first brightness from the second brightness.
Specifically, when by described touch-screen brightness from after the 3rd brightness is increased to the first brightness, be first frequency by set of frequency again, and again touch-screen surrounding environment luminance brightness detected according to first frequency.
In sum, the embodiment of the present invention is by the mode of twice adjustment touch-screen brightness, reduce the luminance delta of user's screen when carrying out contact action, further, due to the reduction of user's luminance delta of screen when carrying out contact action, thus alleviate user when contact action touch-screen to eye damage.
Based on identical design, embodiments provide a kind of touch control display apparatus, as shown in Figure 2, comprise touch-screen, the first detecting unit 201, second detecting unit 202 and adjustment unit 203.First detecting unit 201 is for detecting touch-screen surrounding environment luminance brightness, can be camera, also can be light sensitive device, visible ray light sensitive device, infrared light light sensitive device, described first detecting unit also can be range sensor, for detecting whether there is object near touch-screen.Second detecting unit 202 is for detecting whether have touch control operation, and can be the capacitance component in touch-screen, also can be the resistor assembly in touch-screen, can also be the infrared touch frame of infrared touch panel.Described first detecting unit 201 comprises:
First detecting unit 201, for periodically detecting the brightness of touch-screen surrounding environment light;
Second detecting unit 202, for detecting on touch-screen whether have contact action;
Adjustment unit 203, for when detecting that the variable quantity of surrounding environment luminance brightness reaches pre-conditioned, is reduced to the second brightness by described touch-screen brightness from the first brightness; In the first duration, if contact action detected, then described touch-screen brightness is reduced to the 3rd brightness from the second brightness.
Preferably, described adjustment unit 203, specifically for:
By first rate, described touch-screen brightness is reduced to the second brightness from the first brightness;
Described adjustment unit 203, specifically for:
By the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness; Wherein, the second speed is less than first rate.
Due to human eye higher to brightness time change insensitive, therefore first rate can be set as larger value, described touch-screen brightness is reduced to the second brightness from the first brightness linear.Namely second brightness meet the adjustment of the first stage to touch-screen brightness, can also ensure the normal viewing of other spectators.It is less that second speed can be arranged, and the second rate value can be set to smooth curve, to reach the object slowly reducing touch-screen brightness.Owing to being reduced to the second brightness through touch-screen brightness before, therefore, the difference of the second brightness herein and the 3rd brightness is less, thus reaches the object of protection contact action person eyes.
Preferably, described first detecting unit 201, specifically for:
Described described touch-screen brightness is reduced to the second brightness from the first brightness before, by first frequency periodically detecting touch-screen surrounding environment luminance brightness; When described touch-screen brightness is reduced to the second brightness from the first brightness, first frequency is brought up to second frequency, by second frequency periodically detecting touch-screen surrounding environment luminance brightness; Described second frequency is greater than described first frequency.
First frequency can arrange smaller, mitigation system resource consumption, and such as, first frequency can be set to 5Hz.When detecting that touch-screen surrounding environment light is sharply dimmed, then determine there is people close, now strengthen sample frequency, as second frequency being set to 100Hz.
Preferably, described adjustment unit 203, also for:
If by described touch-screen brightness from the first duration after the first brightness is reduced to the second brightness, contact action do not detected, then described touch-screen brightness be increased to the first brightness from the second brightness.
Preferably, described adjustment unit 203, also for:
If detect by described touch-screen brightness in the second duration after the second brightness is reduced to the 3rd brightness without contact action, then described touch-screen brightness is increased to the first brightness from the 3rd brightness.
Based on identical design, embodiments provide a kind of touch control display apparatus, as shown in Figure 3, comprise sensor 301, touch control device 302 and processor 304, whether described sensor is dimmed for detecting touch-screen surrounding environment, can be camera, also can be light sensation, visible ray, infrared light.Described touch control device is used for detecting whether have touch control operation.Described sensor 301 comprises:
Sensor 301, for periodically detecting the brightness of touch-screen surrounding environment light;
Processor 304, when the variable quantity for surround lighting around meets pre-conditioned, is reduced to the second brightness by described touch-screen brightness from the first brightness; In the first duration, if contact action detected, then described touch-screen brightness is reduced to the 3rd brightness from the second brightness;
Whether touch control device 302, have contact action for detecting;
Storer 303, for storing touch-screen surrounding environment luminance brightness.
Preferably, described processor 304, specifically for:
By first rate, described touch-screen brightness is reduced to the second brightness from the first brightness;
Described processor 304, specifically for:
By the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness; Wherein, the second speed is less than first rate.
Due to human eye higher to brightness time change insensitive, therefore first rate can be set as larger value, described touch-screen brightness is reduced to the second brightness from the first brightness linear.It is less that second speed can be arranged, and the second rate value can be set to smooth curve, to reach the object slowly reducing touch-screen brightness.Owing to being reduced to the second brightness through touch-screen brightness before, therefore, the difference of the second brightness herein and the 3rd brightness is less, thus reaches the object of protection contact action person eyes.
Preferably, described sensor 301, specifically for:
Described described touch-screen brightness is reduced to the second brightness from the first brightness before, by first frequency to described touch-screen surrounding environment luminance brightness carry out periodicity detect;
Described described touch-screen brightness is reduced to the second brightness from the first brightness before, by first frequency periodically detecting touch-screen surrounding environment luminance brightness; When described touch-screen brightness is reduced to the second brightness from the first brightness, first frequency is brought up to second frequency, by second frequency periodically detecting touch-screen surrounding environment luminance brightness; Described second frequency is greater than described first frequency.
First frequency can arrange smaller, mitigation system resource consumption, and such as, first frequency can be set to 5Hz.When detecting that touch-screen surrounding environment light is sharply dimmed, then determine there is people close, now strengthen sample frequency, as second frequency being set to 100Hz.
Preferably, described processor 304, also for:
If by described touch-screen brightness from the first duration after the first brightness is reduced to the second brightness, contact action do not detected, then described touch-screen brightness be increased to the first brightness from the second brightness.
Preferably, described processor 304, also for:
If detect by described touch-screen brightness in the second duration after the second brightness is reduced to the 3rd brightness without contact action, then described touch-screen brightness is increased to the first brightness from the 3rd brightness.
It can be seen from the above: user is close to touch-screen, so the environmental light brightness around touch-screen is dimmed, described touch-screen brightness is reduced to the second brightness from the first brightness, when detecting that user starts to carry out contact action, described touch-screen brightness is reduced to the 3rd brightness from the second brightness reduced.So, the luminance delta of user's screen when carrying out contact action is the variable quantity from the second brightness to the 3rd brightness, visible, by the mode of twice adjustment touch-screen brightness, reduce the luminance delta of user's screen when closely carrying out contact action, further, due to the reduction of user's luminance delta of screen when carrying out contact action, thus alleviate user when contact action touch-screen to eye damage.
Those skilled in the art should understand, embodiments of the invention can be provided as method or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a touch-screen luminance regulating method, is characterized in that, comprises the following steps:
Periodically detecting touch-screen surrounding environment luminance brightness;
If the ratio of the environmental light brightness that current period detects and the environmental light brightness that the last cycle detects is less than setting threshold value, then described touch-screen brightness is reduced to the second brightness from the first brightness; Wherein, the described span of threshold value that sets is as (0,1);
In the first duration, if contact action detected, then described touch-screen brightness is reduced to the 3rd brightness from the second brightness.
2. the method for claim 1, is characterized in that, described by described touch-screen brightness from after the first brightness is reduced to the second brightness, also comprise:
If contact action do not detected in the first duration, then described touch-screen brightness is increased to the first brightness from the second brightness.
3. the method for claim 1, is characterized in that, described by described touch-screen brightness from after the second brightness is reduced to the 3rd brightness, also comprise:
If contact action do not detected in the second duration, then described touch-screen brightness is increased to the first brightness from the 3rd brightness.
4. the method for claim 1, is characterized in that,
Described periodicity detecting touch-screen surrounding environment luminance brightness, is specially:
Described described touch-screen brightness is reduced to the second brightness from the first brightness before, by first frequency periodically detecting touch-screen surrounding environment luminance brightness; By described touch-screen brightness from after the first brightness is reduced to the second brightness, by second frequency periodically detecting touch-screen surrounding environment luminance brightness, wherein said second frequency is greater than described first frequency.
5. the method for claim 1, is characterized in that,
Described described touch-screen brightness is reduced to the second brightness from the first brightness, is specially: by first rate, described touch-screen brightness is reduced to the second brightness from the first brightness;
Described described touch-screen brightness is reduced to the 3rd brightness from the second brightness, is specially: by the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness;
Wherein, the second speed is less than first rate.
6. a touch control display apparatus, comprises touch-screen, it is characterized in that, also comprises:
First detecting unit, for periodically detecting described touch-screen surrounding environment luminance brightness;
Second detecting unit, for detecting contact action;
Adjustment unit, if the ratio of environmental light brightness that the environmental light brightness detected for current period and last cycle detect is less than setting threshold value, is then reduced to the second brightness by described touch-screen brightness from the first brightness; Also in touch-screen brightness from the first duration after the first brightness is reduced to the second brightness, if contact action detected, then described touch-screen brightness is reduced to the 3rd brightness from the second brightness.
7. device as claimed in claim 6, is characterized in that, described first detecting unit, specifically for:
Described described touch-screen brightness is reduced to the second brightness from the first brightness before, by first frequency periodically detecting touch-screen surrounding environment luminance brightness; By described touch-screen brightness from after the first brightness is reduced to the second brightness, first frequency is brought up to second frequency, by second frequency periodically detecting touch-screen surrounding environment luminance brightness; Wherein, described second frequency is greater than described first frequency.
8. device as claimed in claim 7, is characterized in that, described adjustment unit, also for:
If in described touch-screen brightness from the first duration after the first brightness is reduced to the second brightness, contact action do not detected, then described touch-screen brightness be increased to the first brightness from the second brightness;
If detect by described touch-screen brightness in the second duration after the second brightness is reduced to the 3rd brightness without contact action, then described touch-screen brightness is increased to the first brightness from the 3rd brightness.
9. device as claimed in claim 8, is characterized in that, described adjustment unit, also for:
By first rate, described touch-screen brightness is reduced to the second brightness from the first brightness;
By the second speed, described touch-screen brightness is reduced to the 3rd brightness from the second brightness;
Wherein, the second speed is less than first rate.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106251831A (en) * | 2016-08-24 | 2016-12-21 | 惠州Tcl移动通信有限公司 | A kind of screen display lightness regulating method based on ambient light and system |
| CN106297628A (en) * | 2016-08-15 | 2017-01-04 | 青岛海信电器股份有限公司 | Brightness of display screen control method and device |
| CN106462339A (en) * | 2015-09-28 | 2017-02-22 | 华为技术有限公司 | Terminal and method for detecting ambient brightness |
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| CN106793407A (en) * | 2016-12-28 | 2017-05-31 | 生迪智慧科技有限公司 | The method of adjustment and device of ambient brightness |
| CN106793407B (en) * | 2016-12-28 | 2023-04-25 | 生迪智慧科技有限公司 | Method and device for adjusting ambient brightness |
| CN107835324B (en) * | 2017-12-13 | 2021-05-25 | 维沃移动通信有限公司 | Backlight brightness adjusting method and mobile terminal |
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| CN108407503A (en) * | 2018-05-17 | 2018-08-17 | 苏州泛普科技股份有限公司 | Combined intelligent blackboard |
| CN108407503B (en) * | 2018-05-17 | 2024-03-22 | 苏州泛普科技股份有限公司 | Combined intelligent blackboard |
| CN108919988A (en) * | 2018-05-18 | 2018-11-30 | 苏州泛普科技股份有限公司 | Integral and intelligent teaching equipment |
| CN108682194A (en) * | 2018-05-18 | 2018-10-19 | 苏州泛普科技股份有限公司 | Multifunctional interactive electronic blackboard |
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| CN108556524A (en) * | 2018-05-18 | 2018-09-21 | 苏州泛普科技股份有限公司 | Eye-protecting type Combined teaching blackboard |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co., Ltd Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |