CN115482793A - Display device and electronic apparatus facilitating focus adjustment through active brightness adjustment - Google Patents
Display device and electronic apparatus facilitating focus adjustment through active brightness adjustment Download PDFInfo
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- CN115482793A CN115482793A CN202211222991.9A CN202211222991A CN115482793A CN 115482793 A CN115482793 A CN 115482793A CN 202211222991 A CN202211222991 A CN 202211222991A CN 115482793 A CN115482793 A CN 115482793A
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- G—PHYSICS
- 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
- G09G3/36—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 using liquid crystals
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- G—PHYSICS
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The embodiment of the invention relates to a display device and electronic equipment for promoting focus adjustment through active brightness adjustment, wherein the display device comprises a display screen, a display screen driver and a controller; the controller outputs a control signal to the display screen driver according to the control program; the display screen driver drives the display screen to display according to the set brightness according to the control signal, and visual information is output at least once in every 30 minutes; the information period of the visual information is 3-30 seconds once, the brightness changes in the information period, and the peak value and/or the valley value of the brightness appear, wherein the peak value of the brightness in the information period is larger than 1.2 times of the set brightness, and the valley value of the brightness in the information period is smaller than 0.8 times of the set brightness; the display device further comprises a memory for storing a white list and/or a black list of the associated program; and when the associated program in the white list is operated, the controller executes the control program, and when the associated program in the black list is operated, the controller does not execute the control program.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a display device and electronic equipment for promoting focus adjustment through active brightness adjustment.
Background
Visual health is a worldwide public health problem. Myopia is one of the most prominent problems related to visual health.
Especially in the times that electronic equipment is more and more entering into people's life, people work, study, leisure and recreation through electronic screen, and the main crowd who uses electronic screen for the longest time includes: students, word workers, IT engineers. For adults, the long-term use of the electronic screen can cause discomfort of eyes and reduced eyesight; and the long-term use of the electronic screen has great influence on the eyesight of the teenagers.
The nature of myopia is that the anterior-posterior axis of the eyeball is lengthened, the curvature of the cornea of the eyeball is too large, and external light cannot be focused on the retina of the eye fundus, namely the structure of the eye is changed. A number of studies have shown that myopia is caused mainly by accommodation lag induced hyperopic defocus, so controlling hyperopic defocus, allowing the object image to land on the retina, is the most effective method for preventing and controlling myopia.
At present, the control and intervention means for the hyperopic defocus, especially for the juvenile population, mainly include the following:
1. atropine medicine: the atropine is dripped into eyes to relax ciliary muscle, and the effects of dilating pupils and relaxing and regulating are achieved. However, the mechanism of action of atropine is not well understood so far, and clinical application still has great uncertainty.
2. A cornea shaping mirror: through the 'hard' contact of the cornea shaping mirror, the central cornea is flattened, and the middle peripheral cornea is steepened, so that the aim of reducing peripheral hyperopia defocus is fulfilled. However, orthokeratology lenses require direct contact with the eye, improper use increases the risk of ocular inflammation, and are expensive and complex to fit.
3. Red light therapeutic instrument: the natural light is replaced by red light with the wavelength between 630 and 650 nanometers which is beneficial to human bodies in the natural light, the retina is irradiated by safe power and effective time, the retina is promoted to generate and secrete more dopamine, and the increase of the axis of the eye is inhibited. The technical means is still researched, immature, and long-term effectiveness and safety are not known; and the equipment belongs to professional medical equipment, is complex to operate, is not suitable for common household use, even can damage normal retina and choroid components and tissues by improper use, damage eyesight and aggravate myopia.
If an electronic screen can be provided, the electronic screen can actively generate an adjusting effect in the using process to control the occurrence of hyperopic defocus, and the electronic screen is used as equipment which is not in direct contact with a human body, has high popularity and has good application prospect.
Disclosure of Invention
The invention aims to provide a display device and electronic equipment for promoting the focus adjustment through active brightness adjustment, which promote the focus adjustment of a display screen viewer through controllable visual information with intermittent output brightness change, thereby effectively relieving the occurrence of adjustment lag and effectively reducing or avoiding the occurrence of hyperopic defocusing caused by the adjustment lag.
To this end, in a first aspect, embodiments of the present invention provide a display apparatus that facilitates focus adjustment through active brightness adjustment, including: a display screen, a display screen driver and a controller;
the controller outputs a control signal according to the control program and sends the control signal to the display screen driver;
the display screen driver drives the display screen to display according to the set brightness according to the control signal, and visual information is output at least once in every 30 minutes;
the information period of the visual information for one time is 3-30 seconds, and the brightness changes in the information period; the change comprises the occurrence of a peak value and/or a valley value of the brightness, wherein the peak value of the brightness in the information period is more than 1.2 times of the set brightness, and the valley value of the brightness in the information period is less than 0.8 times of the set brightness;
the display device further comprises a memory for storing a white list and/or a black list of associated programs; and when the associated program in the white list is operated, the controller executes the control program, and when the associated program in the black list is operated, the controller does not execute the control program.
Preferably, in the information period, the change of the brightness provided by the display screen driven by the display screen driver according to the control signal is:
changing from the set brightness to the peak value for 1-5 seconds, and changing from the peak value to the set brightness after the peak value is kept for 1-5 seconds, wherein the changing time is 1-5 seconds.
Preferably, in the information period, the change of the brightness provided by the display screen driven by the display screen driver according to the control signal is:
changing from the set brightness to the valley value for 1-5 seconds, and changing from the valley value to the set brightness after the valley value is maintained for 1-5 seconds, wherein the changing time is 1-5 seconds.
Preferably, the controller is a programmable controller, and the programmable controller is connected with a local input device or a remote server; the programmable controller receives programming instruction information sent by an input device or a server, and creates, modifies or deletes the control program according to the programming instruction information; wherein the control program is stored in a program storage module of the controller.
Preferably, when the memory is used for storing a white list of associated programs, the controller acquires a program currently running by a processor of a processing device loaded or connected to the display screen, and when the currently running program is an associated program in the white list, the controller executes the control program.
Preferably, when the memory is used for storing a blacklist of associated programs, the controller acquires a program currently run by a processor of a processing device loaded or connected with the display screen, and when the currently run program is an associated program in the blacklist, the controller does not execute the control program.
Preferably, the display device further comprises a communication device, and the controller is connected to a remote server through the communication device.
Preferably, the display screen is an LCD display screen;
the display screen driver specifically includes: the control chip and the switch voltage regulating circuit; the switch voltage regulating circuit is controlled by the control chip to adjust the input current or the input voltage, so that the brightness of the display screen is controlled.
Preferably, the display screen is an LED display screen or an OLED display screen;
the display screen driver specifically includes: the control chip and the pulse width modulation circuit; the control chip controls the pulse width modulation circuit to adjust the duty ratio of the pulse width modulation PWM of the input signal, so that the brightness of the display screen is controlled.
In a second aspect, an embodiment of the present invention provides an electronic device including the display device described in the first aspect.
The display device for promoting the focus adjustment through the active brightness adjustment, provided by the embodiment of the invention, promotes the focus adjustment of a display screen viewer through controllable visual information which intermittently outputs brightness change, so that the occurrence of adjustment lag can be effectively relieved, and the occurrence of hyperopic defocusing caused by the adjustment lag can be effectively reduced or avoided.
Drawings
Fig. 1 is a block diagram of a display device for facilitating focus adjustment through active brightness adjustment according to an embodiment of the present invention;
FIG. 2 is a block diagram of another display device with active brightness adjustment to facilitate focus adjustment according to an embodiment of the present invention;
fig. 3 is a block diagram of a display device for facilitating focus adjustment through active brightness adjustment according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
An embodiment of the present invention provides a display device for facilitating focus adjustment through active brightness adjustment, whose basic structure is shown in fig. 1, and includes: a display screen 1, a display screen driver 2 and a controller 3;
the controller 3 outputs a control signal according to the control program and sends the control signal to the display screen driver 2; the control program is stored in a program storage module of the controller 3.
The display screen driver 2 drives the display screen 1 to display according to the set brightness according to the control signal, and outputs the visual information at least once every 30 minutes.
In the present embodiment, the information period of the one-time visual information is preferably 3 to 30 seconds, and the luminance changes during the information period, and the change includes occurrence of a peak and/or a valley of the luminance. Wherein the peak value of the brightness in the information period is more than 1.2 times of the set brightness, and the valley value of the brightness in the information period is less than 0.8 times of the set brightness.
In a period other than the information period, the display panel 1 displays at a set luminance, and in the period of the information period, the luminance changes, and a peak and/or a valley of the luminance occurs in the information period. Preferably, the set luminance is 200-1200cd/m 2 。
For example, in one information period, a peak value of luminance occurs, the luminance is changed from a set luminance to the peak value for 1 to 5 seconds and is maintained at the peak value for 1 to 5 seconds, and then, the luminance is changed from the peak value to the set luminance for 1 to 5 seconds. The whole information period is 3-15 seconds.
In a specific example, the length of the information period is 3 seconds, wherein the brightness is set to 500cd/m within 1 st second of the information period 2 To 1500cd/m 2 At 2 nd second of the information period, the output is held at 1500cd/m 2 In the 3 rd second of the information period, the luminance is set to 1500cd/m 2 Change back to 500cd/m 2 。
For another example, in one information period, a valley value of the luminance occurs, the luminance is changed from the set luminance to the valley value for 1 to 5 seconds, and is maintained at the valley value for 1 to 5 seconds, and then, the luminance is changed from the valley value to the set luminance for 1 to 5 seconds. The whole information period is 3-15 seconds.
In another specific example, the length of the information period is 3 seconds, wherein the brightness is set to 500cd/m within 1 st second of the information period 2 To 160cd/m 2 At 2 nd second of the information period, the hold output is 160cd/m 2 Within 3 seconds of the information period, the luminance is set to 160cd/m 2 Change back to 500cd/m 2 。
For another example, in one information period, a valley value and a peak value of the brightness occur, the brightness is changed from the set brightness to the valley value for 1-5 seconds, and is kept at the valley value for 1-5 seconds, and then, the brightness is changed from the valley value to the set brightness for 1-5 seconds; then changing from the set brightness to the peak value for 1-5 seconds, keeping the peak value for 1-5 seconds, and then changing from the peak value to the set brightness for 1-5 seconds. The whole information period is 6-30 seconds.
Also for example, in one information period, a peak value and a valley value of the luminance occur, the luminance is changed from a set luminance to a peak value for 1 to 5 seconds and is maintained at the peak value for 1 to 5 seconds, and then, the luminance is changed from the peak value to the set luminance for 1 to 5 seconds; changing from the set brightness to a valley value for 1-5 seconds, keeping the valley value for 1-5 seconds, and then changing from the valley value to the set brightness for 1-5 seconds; the whole information period is 6-30 seconds.
According to research, the perceptual system of the organism responds to the external change of the visual information within 5 seconds, and on average within 2-3 seconds, so that the organism can effectively respond to the change of the visual information by setting the whole information period within 3-30 seconds, and the aim of stimulating the visual system to respond correspondingly is fulfilled.
The above mode is particularly suitable for scenes that learn or work in front of the display screen under the same display brightness condition for a long time. Through the active adjustment, the change of the peak value and the valley value of visual fatigue caused by long-time non-adjustment of the focus due to the fact that a viewer of the display screen learns or works in the same screen brightness environment for a long time can be avoided, and the focus of the viewer of the display screen 1 can be adjusted.
In the invention, the display screen 1 may be one or more groups, and the types may specifically include a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display screen, an Organic Light Emitting Diode (OLED) display screen, and the like.
The invention realizes the change output of the brightness in the information period by controlling the display screen driver 2 to drive the display screen 1 through the control signal.
In one specific display implementation, the display 1 is an LCD display; the display screen driver 2 specifically includes: the control chip and the switch voltage regulating circuit; the switch voltage regulating circuit is controlled by the control chip to adjust the input current or the input voltage, so that the brightness of the display screen 1 is controlled.
In another specific implementation of the display screen, the display screen 1 is an LED display screen or an OLED display screen; the display screen driver 2 specifically includes: the control chip and the pulse width modulation circuit; the control chip controls the pulse width modulation circuit to adjust the duty ratio of Pulse Width Modulation (PWM) of the input signal, thereby controlling the brightness of the display panel 1.
In the present invention, the controller 3 may preferably be a programmable controller, which may be connected to a local input device or to a remote server. The two implementation modes are respectively shown in fig. 2 and fig. 3.
In fig. 2, a programmable controller 3 is connected to a local input device 4.
In fig. 3, the programmable controller 3 is connected to a remote server 5.
The programmable controller 3 receives programming instruction information transmitted from the input device 4 or the server 5, and creates, modifies, or deletes a control program stored in a program storage module of the programmable controller 3 based on the programming instruction information.
In the solution shown in fig. 3, a communication device 6 is further included, and the controller 3 is connected to the remote server 5 through the communication device 6.
The display device of the invention is used in electronic equipment, such as tablet computers, portable computers, desktop computers, electronic blackboards, mobile phones and the like. In a preferred embodiment, the above dynamic brightness adjustment, i.e., the control program execution or non-execution, may be performed automatically or not according to a specific application environment.
The display device proposed by the invention further comprises a memory 7 for storing a white list and/or a black list of the associated program; the controller 3 executes the control program when the associated program in the white list is run, and the controller 3 does not execute the control program when the associated program in the black list is run. That is, the memory 7 is used for storing a white list or a black list of the associated programs which perform or do not perform the above active brightness adjustment function; the setting of the above-described white list or black list may be performed by the input device 4 or the server 5.
When the memory 7 is used for storing a white list of associated programs, the controller 3 acquires a program currently run by a processor of the processing device loading or connected with the display screen of the present invention, and when the currently run program is the associated program in the white list, the controller 3 executes the control program.
When the memory 7 is used for storing the blacklist of the associated programs, the controller 3 acquires the currently running program of the processor of the processing device loaded or connected with the display screen of the present invention, and when the currently running program is the associated program in the blacklist, the controller 3 does not execute the control program.
For example, the processing device is a working computer of an IT engineer, the working environment of the processing device for programming and developing software is an interface with a monochromatic background, a program used for programming is added into a white list to be a related program, when the program runs, the controller 3 can acquire the program currently run by the processor to determine that the related program in the white list is running, therefore, the controller 3 executes the control program, visual information is output at least once in every 30 minutes, and brightness adjustment is utilized to provide illumination change different from set brightness, so that the focus adjustment of a user is promoted.
As another example, the processing device is a student's smartphone, and its common application programs are video software in addition to various software used in online class. When the video software is started, the program of the video software may be added to the blacklist as the associated program without wishing to perform the function of automatically adjusting the brightness, and when the video software program is running, the controller 3 may obtain the program currently running by the processor to determine that the associated program in the blacklist is running, and at this time, the controller 3 does not execute the above control program.
Therefore, the user can be customized to open and close the functions, and great convenience is brought to the user.
In the working process of the display screen which promotes the focus adjustment through the active brightness adjustment, the vision information is output at least once in every 30 minutes, the brightness adjustment is utilized to provide the illumination change different from the set brightness, the focus adjustment of a display screen viewer is promoted, the occurrence of the adjustment lag is relieved, and the occurrence of the hyperopic defocus caused by the adjustment lag is effectively reduced or avoided.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate their interchangeability of hardware and software. Whether these functions are performed in hardware or software depends on the specific application of the solution and design constraints. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A display device that facilitates focus adjustment through active brightness adjustment, the display device comprising: a display screen, a display screen driver and a controller;
the controller executes the control program to output a control signal and sends the control signal to the display screen driver;
the display screen driver drives the display screen to display according to the set brightness according to the control signal, and visual information is output at least once in every 30 minutes;
the information period of the visual information for one time is 3-30 seconds, and the brightness changes in the information period; the change comprises the occurrence of a peak value and/or a valley value of the brightness, wherein the peak value of the brightness in the information period is more than 1.2 times of the set brightness, and the valley value of the brightness in the information period is less than 0.8 times of the set brightness;
the display device further comprises a memory for storing a white list and/or a black list of the associated program; and when the associated program in the white list is operated, the controller executes the control program, and when the associated program in the black list is operated, the controller does not execute the control program.
2. The display device according to claim 1, wherein the display panel driver drives the display panel according to the control signal to provide a brightness variation of:
changing from the set brightness to the peak value for 1-5 seconds, and after the peak value is kept for 1-5 seconds, changing from the peak value to the set brightness for 1-5 seconds.
3. The display device according to claim 1, wherein the display panel driver drives the display panel according to the control signal to provide a brightness variation of:
changing from the set brightness to the valley value for 1-5 seconds, and changing from the valley value to the set brightness after the valley value is maintained for 1-5 seconds, wherein the changing time is 1-5 seconds.
4. The display device according to claim 1, wherein the controller is a programmable controller connected to a local input device or to a remote server; the programmable controller receives programming instruction information sent by an input device or a server, and creates, modifies or deletes the control program according to the programming instruction information; wherein the control program is stored in a program storage module of the controller.
5. The display device according to claim 1, wherein the memory is configured to, when storing a white list of associated programs, the controller obtains a program currently running on a processor of a processing device loaded or connected to the display screen, and when the currently running program is an associated program in the white list, the controller executes the control program.
6. The display apparatus according to claim 1, wherein the memory is configured to, when storing a blacklist of associated programs, obtain a program currently running on a processor of a processing device loaded on or connected to the display screen, and when the currently running program is an associated program in the blacklist, the controller does not execute the control program.
7. The display device according to claim 1, wherein the display device further comprises a communication device through which the controller connects to a remote server.
8. The display device according to claim 1, wherein the display screen is an LCD display screen;
the display screen driver specifically includes: the control chip and the switch voltage regulating circuit; the switch voltage regulating circuit is controlled by the control chip to adjust the input current or the input voltage, so that the brightness of the display screen is controlled.
9. The display device according to claim 1, wherein the display screen is an LED display screen or an OLED display screen;
the display screen driver specifically includes: the control chip and the pulse width modulation circuit; the control chip controls the pulse width modulation circuit to adjust the duty ratio of the pulse width modulation PWM of the input signal, thereby controlling the brightness of the display screen.
10. An electronic device comprising a display device as claimed in any one of the claims 1-9.
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| CN202211222991.9A CN115482793A (en) | 2022-10-08 | 2022-10-08 | Display device and electronic apparatus facilitating focus adjustment through active brightness adjustment |
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| CN202211222991.9A CN115482793A (en) | 2022-10-08 | 2022-10-08 | Display device and electronic apparatus facilitating focus adjustment through active brightness adjustment |
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| CN107665696A (en) * | 2016-07-28 | 2018-02-06 | 广东野光源视力保健研究院 | The display device that a kind of display brightness dynamic changes |
| CN114363448A (en) * | 2020-09-29 | 2022-04-15 | 北京小米移动软件有限公司 | Brightness control method and device for small screen window, terminal and storage medium |
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2022
- 2022-10-08 CN CN202211222991.9A patent/CN115482793A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255223A (en) * | 1996-07-26 | 2000-05-31 | 罗杰·瓦格纳 | Anti-eye strain apparatus and method |
| US20120001949A1 (en) * | 2010-06-30 | 2012-01-05 | Michio Seki | Brightness Controller, Brightness Control Method, and Computer Program Product |
| CN107665696A (en) * | 2016-07-28 | 2018-02-06 | 广东野光源视力保健研究院 | The display device that a kind of display brightness dynamic changes |
| CN106782298A (en) * | 2017-01-18 | 2017-05-31 | 深圳市金研微科技有限公司 | A kind of brightness adjusting method of LED display screen system |
| CN114363448A (en) * | 2020-09-29 | 2022-04-15 | 北京小米移动软件有限公司 | Brightness control method and device for small screen window, terminal and storage medium |
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