CN112351137A - Backlight brightness adjusting method based on light sensitivity value - Google Patents
Backlight brightness adjusting method based on light sensitivity value Download PDFInfo
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- CN112351137A CN112351137A CN202011173421.6A CN202011173421A CN112351137A CN 112351137 A CN112351137 A CN 112351137A CN 202011173421 A CN202011173421 A CN 202011173421A CN 112351137 A CN112351137 A CN 112351137A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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Abstract
The invention belongs to the technical field of screen brightness adjustment and discloses a backlight brightness adjusting method based on a light sensation value. The invention comprises the following steps: acquiring an initial light sensation value of a screen to be adjusted and judging whether the initial light sensation value is within a preset light sensation value threshold value, if so, acquiring a corresponding preset light sensation value range and adjusting the backlight brightness of the screen to be adjusted; and acquiring a process photosensitive value of the current screen to be adjusted in real time, judging whether the process photosensitive value is consistent with the initial photosensitive value or not, if not, acquiring a corresponding preset photosensitive value range, judging whether the current process photosensitive value is smaller than a corresponding lower limit critical photosensitive value or larger than a corresponding upper limit critical photosensitive value, and if so, adjusting the backlight brightness of the screen to be adjusted. According to the invention, the elastic adjustment of the backlight brightness of the screen to be adjusted is realized by further judging the deviation of the process light sensitivity value, so that the problem that the backlight brightness of the screen to be adjusted is dim and dim is avoided, the user experience is further improved, and the method and the device are suitable for popularization and use.
Description
Technical Field
The invention belongs to the technical field of screen brightness adjustment, and particularly relates to a backlight brightness adjustment method based on a light sensation value.
Background
The display screen is widely applied to intelligent mobile terminals such as mobile phones and the like, along with the progress of science and technology, the performance of the display screen is greatly improved, but the defects still exist, particularly in the aspect of brightness adjustment of the display screen; nowadays, the brightness of the display screen is mainly adjusted by detecting ambient light through a light sensor, if the light sensation value of the ambient light is larger, the display screen is adjusted to be bright, and if the light sensation value of the environment is smaller, the display screen is adjusted to be dark. The method for adjusting the brightness of the display screen can better meet the requirements of normal users.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
because light is very sensitive, the brightness adjustment of the display screen in the prior art is based on the light sensation value of ambient light detected by the light sensor, and the light sensation value detected by the existing light sensor generally changes within a certain interval range, if the interval range at the moment is the boundary point of two backlight brightness, the existing adjustment mode can cause the backlight brightness adjustment of the display screen to be disordered, and further cause the backlight brightness of the display screen to be dim, thereby affecting the normal use of a user.
Disclosure of Invention
The present invention aims to solve at least one of the above technical problems to a certain extent.
Therefore, the present invention is directed to provide a backlight brightness adjusting method based on a light sensation value, which can prevent the backlight brightness adjustment of a display screen from affecting the normal use of a user when the light sensation value of ambient light changes.
The technical scheme adopted by the invention is as follows:
a backlight brightness adjusting method based on a light sensation value comprises the following steps:
acquiring an initial photosensitive value of a screen to be adjusted, judging whether the current initial photosensitive value is within a preset photosensitive value threshold value, if not, outputting adjustment failure information, wherein the preset photosensitive value threshold value comprises a plurality of preset photosensitive value ranges, any preset photosensitive value range corresponds to backlight brightness, and any preset photosensitive value range comprises an upper limit critical photosensitive value and a lower limit critical photosensitive value;
if the current initial light sensation value is within the preset light sensation value threshold, acquiring a preset light sensation value range corresponding to the current initial light sensation value, and then adjusting the backlight brightness of the screen to be adjusted to the backlight brightness corresponding to the preset light sensation value range;
after the backlight brightness of the current screen to be adjusted is adjusted, acquiring a process photosensitive value of the current screen to be adjusted in real time, judging whether the process photosensitive value is consistent with the initial photosensitive value or not, and if not, acquiring a preset photosensitive value range corresponding to the current process photosensitive value;
and judging whether the current process photosensitive value is smaller than a lower limit critical photosensitive value corresponding to the current preset photosensitive value range or whether the current process photosensitive value is larger than an upper limit critical photosensitive value corresponding to the current preset photosensitive value range, if so, adjusting the backlight brightness of the screen to be adjusted to be the backlight brightness corresponding to the previous preset photosensitive value range or the backlight brightness corresponding to the next preset photosensitive value range of the current preset photosensitive value range, and if not, repeatedly acquiring the process photosensitive value of the current screen to be adjusted in real time.
Preferably, the backlight brightness corresponding to a plurality of preset light sensation value ranges in the preset light sensation value threshold is increased step by step.
Preferably, the upper limit critical light sensation value and the lower limit critical light sensation value in any predetermined light sensation value range are not the same light sensation value.
Preferably, the upper limit critical light sensation value of any predetermined light sensation value range is greater than the lower limit critical light sensation value.
Preferably, when determining whether the current process photosensitive value is smaller than the lower limit critical photosensitive value corresponding to the current preset photosensitive value range or whether the current process photosensitive value is larger than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, the specific steps are as follows:
if the light sensation value in the current process is smaller than the lower limit critical light sensation value corresponding to the current preset light sensation value range, the backlight brightness of the screen to be adjusted is adjusted to be the backlight brightness corresponding to the upper-stage preset light sensation value range of the current preset light sensation value range;
if the photosensitive value in the current process is larger than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, the backlight brightness of the screen to be adjusted is adjusted to be the backlight brightness corresponding to the next-stage preset photosensitive value range of the current preset photosensitive value range;
and if the current process photosensitive value is not less than the lower limit critical photosensitive value corresponding to the current preset photosensitive value range or the current process photosensitive value is not greater than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, repeatedly acquiring the process photosensitive value of the current screen to be adjusted in real time.
The invention has the beneficial effects that:
by detecting the initial light sensation value and the process light sensation value and matching the preset light sensation value threshold, the preset light sensation value range, the upper limit critical light sensation value and the lower limit critical light sensation value, when the process light sensation value of the environment light is at the boundary point of the backlight brightness corresponding to the two preset light sensation value ranges, the elastic adjustment of the backlight brightness of the screen to be adjusted is realized by further judging the deviation of the process light sensation value, the problem that the backlight brightness of the screen to be adjusted is dim is avoided, the user experience degree is further improved, and the method is suitable for popularization and use.
Other advantageous effects of the present invention will be described in detail in the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block flow diagram of embodiment 1.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. When the terms "comprises," "comprising," "includes," and/or "including" are used herein, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
Example 1
As shown in fig. 1, the present embodiment provides a backlight brightness adjusting method based on a photosensitive value, including the following steps:
acquiring an initial photosensitive value of a screen to be adjusted, judging whether the current initial photosensitive value is within a preset photosensitive value threshold value, if not, outputting adjustment failure information, wherein the preset photosensitive value threshold value comprises a plurality of preset photosensitive value ranges, any preset photosensitive value range corresponds to backlight brightness, and any preset photosensitive value range comprises an upper limit critical photosensitive value and a lower limit critical photosensitive value;
if the current initial light sensation value is within the preset light sensation value threshold, acquiring a preset light sensation value range corresponding to the current initial light sensation value, and then adjusting the backlight brightness of the screen to be adjusted to the backlight brightness corresponding to the preset light sensation value range;
after the backlight brightness of the current screen to be adjusted is adjusted, acquiring a process photosensitive value of the current screen to be adjusted in real time, judging whether the process photosensitive value is consistent with the initial photosensitive value or not, and if not, acquiring a preset photosensitive value range corresponding to the current process photosensitive value;
and judging whether the current process photosensitive value is smaller than a lower limit critical photosensitive value corresponding to the current preset photosensitive value range or whether the current process photosensitive value is larger than an upper limit critical photosensitive value corresponding to the current preset photosensitive value range, if so, adjusting the backlight brightness of the screen to be adjusted to be the backlight brightness corresponding to the previous preset photosensitive value range or the backlight brightness corresponding to the next preset photosensitive value range of the current preset photosensitive value range, and if not, repeatedly acquiring the process photosensitive value of the current screen to be adjusted in real time.
In the backlight brightness adjusting method based on the light sensation value in this embodiment, by detecting the initial light sensation value and the process light sensation value and matching with the preset light sensation value threshold, the preset light sensation value range, the upper limit critical light sensation value and the lower limit critical light sensation value, when the process light sensation value of the ambient light is at the boundary point of the backlight brightness corresponding to the two preset light sensation value ranges, elastic adjustment of the backlight brightness of the screen to be adjusted is achieved by further judging the deviation of the process light sensation value, so that a certain range is divided at the boundary point, and then the backlight brightness of the screen to be adjusted is adjusted more flexibly, and further, the problem that the backlight brightness of the screen to be adjusted is dim is avoided.
Example 2
The technical solution provided by this embodiment is a further improvement on the basis of the technical solution of embodiment 1, and the difference between this embodiment and embodiment 1 is that:
in this embodiment, the backlight brightness corresponding to a plurality of preset light sensation value ranges in the preset light sensation value threshold is gradually increased; thereby making it more accurate when adjusting the backlight brightness of the screen to be adjusted according to the initial or process light sensation value.
As a preferred embodiment, the preset threshold value and the preset light sensation value ranges may be set by referring to the existing backlight brightness dividing method.
Example 3
The technical solution provided by this embodiment is a further improvement on the basis of the technical solution of embodiment 1 or 2, and the difference between this embodiment and embodiment 1 or 2 is that:
in this embodiment, the upper limit critical light sensation value and the lower limit critical light sensation value in any predetermined light sensation value range are not the same light sensation value; therefore, meaningless judgment steps are avoided, and the adjustment of the backlight brightness is more accurate.
Example 4
The technical solution provided by this embodiment is a further improvement made on the basis of the technical solution of embodiment 3, and the difference between this embodiment and embodiment 3 is that:
in this embodiment, the upper limit critical light sensation value in any predetermined light sensation value range is greater than the lower limit critical light sensation value; therefore, the steps are more standard when the process light sensitivity value is judged, and the result is more accurate.
Example 5
The technical solution provided by this embodiment is a further improvement made on the basis of any one of embodiments 1 to 4, and the difference between this embodiment and any one of embodiments 1 to 4 is that:
in this embodiment, when determining whether the current process photosensitive value is smaller than the lower limit critical photosensitive value corresponding to the current preset photosensitive value range or whether the current process photosensitive value is larger than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, the specific steps are as follows:
if the light sensation value in the current process is smaller than the lower limit critical light sensation value corresponding to the current preset light sensation value range, the backlight brightness of the screen to be adjusted is adjusted to be the backlight brightness corresponding to the upper-stage preset light sensation value range of the current preset light sensation value range;
if the photosensitive value in the current process is larger than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, the backlight brightness of the screen to be adjusted is adjusted to be the backlight brightness corresponding to the next-stage preset photosensitive value range of the current preset photosensitive value range;
and if the current process photosensitive value is not less than the lower limit critical photosensitive value corresponding to the current preset photosensitive value range or the current process photosensitive value is not greater than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, repeatedly acquiring the process photosensitive value of the current screen to be adjusted in real time.
In the backlight brightness adjusting method based on the light sensation value in the embodiments 1 to 5, the point value when the process light sensation value of the ambient light is at the boundary point of the backlight brightness corresponding to the two preset light sensation value ranges is extended to be the interval value, so that the backlight brightness adjustment of the screen to be adjusted has scalability, and the problem that the backlight brightness of the display screen is dim and dim when the ambient light changes in the prior art is solved.
The embodiments described above are merely illustrative, and may or may not be physically separate, if referring to units illustrated as separate components; if reference is made to a component displayed as a unit, it may or may not be a physical unit, and may be located in one place or distributed over a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.
Claims (5)
1. A backlight brightness adjusting method based on a light sensation value is characterized in that: the method comprises the following steps:
acquiring an initial photosensitive value of a screen to be adjusted, judging whether the current initial photosensitive value is within a preset photosensitive value threshold value, if not, outputting adjustment failure information, wherein the preset photosensitive value threshold value comprises a plurality of preset photosensitive value ranges, any preset photosensitive value range corresponds to backlight brightness, and any preset photosensitive value range comprises an upper limit critical photosensitive value and a lower limit critical photosensitive value;
if the current initial light sensation value is within the preset light sensation value threshold, acquiring a preset light sensation value range corresponding to the current initial light sensation value, and then adjusting the backlight brightness of the screen to be adjusted to the backlight brightness corresponding to the preset light sensation value range;
after the backlight brightness of the current screen to be adjusted is adjusted, acquiring a process photosensitive value of the current screen to be adjusted in real time, judging whether the process photosensitive value is consistent with the initial photosensitive value or not, and if not, acquiring a preset photosensitive value range corresponding to the current process photosensitive value;
and judging whether the current process photosensitive value is smaller than a lower limit critical photosensitive value corresponding to the current preset photosensitive value range or whether the current process photosensitive value is larger than an upper limit critical photosensitive value corresponding to the current preset photosensitive value range, if so, adjusting the backlight brightness of the screen to be adjusted to be the backlight brightness corresponding to the previous preset photosensitive value range or the backlight brightness corresponding to the next preset photosensitive value range of the current preset photosensitive value range, and if not, repeatedly acquiring the process photosensitive value of the current screen to be adjusted in real time.
2. The method of claim 1, wherein: the backlight brightness corresponding to a plurality of preset light sensation value ranges in the preset light sensation value threshold is gradually increased.
3. The method of claim 2, wherein: the upper limit critical light sensation value and the lower limit critical light sensation value in any preset light sensation value range are not the same light sensation value.
4. The method of claim 3, wherein: the upper limit critical light sensation value in any predetermined light sensation value range is greater than the lower limit critical light sensation value.
5. The method for adjusting the brightness of a backlight according to any one of claims 1 to 4, wherein: when judging whether the photosensitive value of the current process is smaller than the lower limit critical photosensitive value corresponding to the current preset photosensitive value range or whether the photosensitive value of the current process is larger than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, the specific steps are as follows:
if the light sensation value in the current process is smaller than the lower limit critical light sensation value corresponding to the current preset light sensation value range, the backlight brightness of the screen to be adjusted is adjusted to be the backlight brightness corresponding to the upper-stage preset light sensation value range of the current preset light sensation value range;
if the photosensitive value in the current process is larger than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, the backlight brightness of the screen to be adjusted is adjusted to be the backlight brightness corresponding to the next-stage preset photosensitive value range of the current preset photosensitive value range;
and if the current process photosensitive value is not less than the lower limit critical photosensitive value corresponding to the current preset photosensitive value range or the current process photosensitive value is not greater than the upper limit critical photosensitive value corresponding to the current preset photosensitive value range, repeatedly acquiring the process photosensitive value of the current screen to be adjusted in real time.
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| EP1569194A1 (en) * | 2004-02-13 | 2005-08-31 | Sony Ericsson Mobile Communications AB | Portable electronic device controlled according to ambient illumination |
| CN102176305A (en) * | 2005-02-28 | 2011-09-07 | 捷讯研究有限公司 | Backlight control for a portable computing device |
| CN104168371A (en) * | 2014-08-08 | 2014-11-26 | Tcl通讯（宁波）有限公司 | Method for adjusting backlight brightness of mobile terminal and mobile terminal |
| CN106098021A (en) * | 2016-08-08 | 2016-11-09 | 广东欧珀移动通信有限公司 | A kind of back light brightness regulating method and terminal |
| CN108574768A (en) * | 2017-03-09 | 2018-09-25 | 上海传英信息技术有限公司 | A kind of method, system and mobile terminal adjusting backlight illumination based on environment light detection |
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2020
- 2020-10-28 CN CN202011173421.6A patent/CN112351137A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1569194A1 (en) * | 2004-02-13 | 2005-08-31 | Sony Ericsson Mobile Communications AB | Portable electronic device controlled according to ambient illumination |
| CN102176305A (en) * | 2005-02-28 | 2011-09-07 | 捷讯研究有限公司 | Backlight control for a portable computing device |
| CN104168371A (en) * | 2014-08-08 | 2014-11-26 | Tcl通讯（宁波）有限公司 | Method for adjusting backlight brightness of mobile terminal and mobile terminal |
| CN106098021A (en) * | 2016-08-08 | 2016-11-09 | 广东欧珀移动通信有限公司 | A kind of back light brightness regulating method and terminal |
| CN108574768A (en) * | 2017-03-09 | 2018-09-25 | 上海传英信息技术有限公司 | A kind of method, system and mobile terminal adjusting backlight illumination based on environment light detection |
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