CN103607622A - Television watching protecting method, device and set top box - Google Patents
Television watching protecting method, device and set top box Download PDFInfo
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- CN103607622A CN103607622A CN201310608104.6A CN201310608104A CN103607622A CN 103607622 A CN103607622 A CN 103607622A CN 201310608104 A CN201310608104 A CN 201310608104A CN 103607622 A CN103607622 A CN 103607622A
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Abstract
The invention relates to intelligent household electrical appliances, and provides a television watching method and device. The method comprises the following steps: capturing eyeballs of audiences and the distance between the eyeballs and a display screen, calculating the sight deviation angles, relative to the display screen, of the audiences, if the sight deviation angles are larger than the preset angle and/or the distance is smaller than the preset distance, giving out a prompt, detecting the watching postures, angles and distances of the audiences, and when the watching postures, angles and distances of the audiences are improper, giving out an alarm to remind the user of adjusting the watching postures, angles and distances. The method and device can effectively reduce the shortsightedness probability of the audiences, enhance shortsightedness protection, meanwhile, supervise the user to develop the correct watching postures and correct the postures.
Description
Technical field
The invention belongs to field of set-top, relate in particular to a kind of television-viewing guard method, device and Set Top Box.
Background technology
At present, set-top box video output brightness, color attribute are manually to be adjusted by user habit substantially.In user's use procedure, can because of user's posture, distance, not point out by eye safety yet.Particularly, when child is watching in process, if do not have the head of a family to guide on side, by wrong posture, watch for a long time TV, easily cause eyesight Hearing finally to cause serious consequence.
Summary of the invention
In view of this, be necessary to provide a kind of and strengthen sight protectio, correct the television-viewing guard method of watching posture.
A television-viewing guard method, comprises the following steps:
Catch spectators' eyeball;
According to the spectators' that capture eyeball, calculate the sight line deviation angle of the relative display screen of described spectators;
If described sight line deviation angle is greater than preset angles, send prompting, within prompting spectators are adjusted to preset angles.
In addition, also provide a kind of television-viewing protective device, having comprised:
Acquisition module, for catching spectators' eyeball;
Computing module, for according to the spectators' that capture eyeball, calculates the sight line deviation angle of the relative display screen of described spectators;
Executive Module, if be greater than preset angles for described sight line deviation angle, sends prompting, within prompting spectators are adjusted to preset angles.
In addition, also provide a kind of Set Top Box, with the mutual communication of the equipment with display screen, described Set Top Box comprises above-mentioned television-viewing protection system.
Above-mentioned television-viewing guard method and device are realized the capture function of eyeball by eyeball tracking technology, system resource takies low, and hsrdware requirements are low; Detect posture, angle that user watches, when user's posture, angle not at that time, reminding user adjustment gives the alarm.Can effectively reduce the probability of spectators' myopia, strengthen sight protectio.Meanwhile, the posture that supervision is correctly watched, corrects figure.
Accompanying drawing explanation
Fig. 1 is the flow chart of a television-viewing guard method in embodiment;
Fig. 2 is the end view that display screen and sight line place plane form;
Fig. 3 is the vertical view that display screen and sight line place plane form;
Fig. 4 is the flow chart of the television-viewing guard method in another embodiment;
Fig. 5 is the front view that display screen and sight line forward place plane form;
Fig. 6 is whether the differentiation spectators that another embodiment provides are children's method flow diagram;
Fig. 7 is the adjusting display backlight that provides of another embodiment and the method flow diagram of contrast;
Fig. 8 is the module diagram of television-viewing protection system.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, 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, is not intended to limit the present invention.
As Figure 1-3, a kind of television-viewing guard method, comprises the following steps:
Step S110, catches spectators' eyeball 200(referring to Fig. 2,3).Open machine, carry out the broadcasting of TV programme, eyeball tracking function is also started working, and catches spectators' eyeball 200 actions constantly.Tracer technique can capture the exercises of people's eyeball 200, and hardware requirement is not high, and the camera of low pixel also can easily capture.This technology is in utilization process, and the internal memory taking is low, can not affect the operating rate of machine.In the situation that many people watch program, can follow the trail of separately eyeball 200 and also can merge tracking eyeball 200.
Step S120, according to the spectators' that capture eyeball 200, calculates the sight line deviation angle of the relative display screen 100 of described spectators.This sight line deviation angle comprises level (left and right) deviation angle of the relative display screen of spectators, vertical (up and down) deviation angle.
Step S130, if described sight line deviation angle is greater than preset angles, sends prompting, within prompting spectators are adjusted to preset angles.Particularly, according to above-mentioned sight line deviation angle and corresponding security standpoint (preset angles) contrast, left and right deviation angle is excessive, easily causes stravismus; Upper and lower deviation angle is excessive, can cause cervical vertebra disfiguration when surpassing security standpoint, reminds spectators to adjust viewing angle.Generally, above-mentioned deviation angle is thought security standpoint at 30 ° with interior.
In more detailed embodiment, sight line deviation angle comprises the first deviation angle (horizontal-shift angle) α, the second deviation angle (offset of vertical angle) β.
With reference to figure 2, the first deviation angle α, drop on the plane Z at the sight line place of display screen 100 for spectators
1with display screen 100 place horizontal plane X
1angle.Plane Z in the present embodiment
1also can think the straight line at sight line place.
With reference to figure 3, the second offset angle, drop on the plane Z at the sight line place of display screen 100 for spectators
1with display screen 100 place vertical plane X
2angle.At this, it should be noted that, for the ease of calculating and explanation, the plane Z in the present embodiment
1also can think the straight line at sight line place, it overlaps with the angular bisector that two eyeballs 200 drop on the angle that two sight lines of display screen 100 form, with display screen 100 place vertical plane X
2calculate the second offset angle.In other embodiments, plane Z
1also can be to overlap with a sight line wherein, with display screen 100 place vertical plane X
2calculate the second offset angle.
In Fig. 2 to 3, plane Y
1for the panel place plane of display screen 100, horizontal plane X
1for with the crossing horizontal plane of display screen 100, vertical plane X
2for intersecting vertical plane with display screen 100.
In a further embodiment, more specifically, in step S130, if exceeding preset angles, the first deviation angle α and/or the second offset angle can send prompting.
In a further embodiment, the preset angles of the first deviation angle α and the second offset angle is arranged between 10 ° to 40 °, for example, be 20 ° or 30 °.
With reference to figure 4,5, in a further embodiment, sight line deviation angle also comprises side-looking deviation angle δ, for example spectators lean to state or the state that couches in one, for a long time in this state, spectators' eyesight can be greatly affected on the one hand, and spectators' vertebra also can cause distortion on the other hand.Therefore the method also comprises step S140 and step S150.
Step S140, captures spectators' eyeball 200 according to step S110, calculate the forward sight line place plane Z of spectators' two eyeballs 200
1with described display screen 100 place horizontal plane X
1side-looking deviation angle δ.With reference to figure 5, the forward sight line place plane Z that watches display screen 100 of two eyeballs 200 that side-looking deviation angle δ is spectators
1with display screen 100 place horizontal plane X
1angle.Plane Z when eyeball 200 sight line places
1long-time not at the horizontal plane X of display screen 100
1upper, form side-looking deviation angle δ.
Step S150, if described side-looking deviation angle δ is greater than angle threshold for a long time, watches fault, reminds spectators to correct and watches posture.Preferably, the angle threshold of side-looking deviation angle δ is arranged between 10 ° to 40 °, for example, be 20 ° or 30 °.In the present embodiment, the duration that side-looking deviation angle δ is greater than angle threshold can be 10 minutes, 20 minutes, 30 minutes etc.
With reference to figure 6, in a further embodiment, television-viewing guard method is further comprising the steps of before step S110:
Step S102, seizure spectators' face feature information.Utilize image recognition to calculate, obtain spectators' face feature information.
Step S104, calculates according to described face feature information, draws face feature result.According to the framework of people's face and profile, utilize people's face Distribution Algorithm calculate face feature information and export result of calculation.
Step S106, judges according to described face feature result whether these spectators are children.If judge, these spectators are children, jump to step S110 and carry out; If judge, these spectators are not children, program stopped.
With reference to figure 7, in a further embodiment, due to light too by force or excessively dark, all can directly affect spectators' eyesight, therefore television-viewing guard method also comprises:
Step S210, obtains the intensity signal of environment.Utilize light sensor or above-mentioned camera to obtain the luminous intensity of current environment.
Step S220, calculates best image screen backlight intensity and the optimum contrast that is applicable to current environment, and exports corresponding regulating command according to described intensity signal.Regulating command has comprised the instruction that regulates best image screen backlight intensity and optimum contrast, treats in execution.
Step S230, carries out described regulating command or sends the prompting of asking to carry out described regulating command.System can automatically perform this adjusting and carry out, or sends to remind and allow spectators carry out, or reminds spectators after carrying out.
In addition, with reference to figure 2,3,5, in a further embodiment, all right in television-viewing guard method, obtain the distance H of tracked eyeball 200 and display screen 100, this distance H generally get two eyeballs 200 respectively with the mean value of the distance of display screen 100.
In the time of contrast sight line deviation angle, also need, by the distance H getting and corresponding safe distance (predeterminable range) contrast, when surpassing safe distance (viewing distance is less than predeterminable range), to remind spectators to adjust viewing angle.Wherein, safe distance will decide according to the size of display screen 100, can be arranged by the head of a family.It should be noted that, when sight line deviation angle and distance H one of them with together with while exceeding security value (s) system all can send and remind or alarm.
In addition, children continue to watch the time of TV, generally can not surpass 20-60 minute.Therefore, in a further embodiment, when system detect spectators in specific duration in viewed status, can remind in time spectators carry out suitable rest.Particularly, television-viewing guard method also comprises:
That according to step S110, calculates described spectators continues to watch duration.Owing to being real-time to the tracking of eyeball in step S110, that utilizes that this function can obtain that spectators watch TV continues to watch duration.
Therefore, above-mentioned continuing of getting, watch duration to surpass default duration (can be set to 30 minutes), system will be sent and remind to remind spectators' (being mainly the head of a family) to take next step measure, or system output shutdown command, can be to close display screen or Set Top Box etc.
Also have, the sound of broadcasting is excessive, easily causes spectators' ear-drum impaired, affects spectators' hearing.Television-viewing guard method can also gather the level of noise of environment, and the sound of program being play according to this level of noise is adjusted to optimum size.
As shown in Figure 8, also provide a kind of television-viewing protective device, it comprises eyeball tracking module 301, computing module 302, Executive Module 303, wherein:
If Executive Module 303 is greater than preset angles for described sight line deviation angle, send prompting, within prompting spectators are adjusted to preset angles.
In more detailed embodiment, described sight line deviation angle comprises the first deviation angle α and the second offset angle.
With reference to figure 2, the first deviation angle α, drop on the plane Z at the sight line place of display screen 100 for spectators
1with display screen 100 place horizontal plane X
1angle.
With reference to figure 3, the second offset angle, drop on the plane Z at the sight line place of display screen 100 for spectators
1with display screen 100 place vertical plane X
2angle.
In a further embodiment, if described Executive Module 303 also exceeds its preset angles for described the first deviation angle and/or described the second deviation angle, send prompting.
In a further embodiment, sight line deviation angle comprises side-looking deviation angle δ.With reference to figure 5, the forward sight line place plane Z that watches display screen 100 of two eyeballs 200 that are spectators depending on deviation angle δ
1with display screen 100 place horizontal plane X
1angle.
The computing module 302 of this device also for, according to the eyeball 200 that captures spectators, calculate the forward sight line place plane Z of spectators' two eyeballs 200
1with described display screen 100 place horizontal plane X
1side-looking deviation angle δ.
The Executive Module 303 of this device also for, if described side-looking deviation angle δ is greater than angle threshold for a long time, watch fault, remind spectators to correct and watch posture.
In a preferred embodiment, the preset angles (angle threshold) of described the first deviation angle α, described the second offset angle and side-looking deviation angle δ is arranged between 10 ° to 40 °, for example, be 20 °, 30 °.
In a further embodiment, described eyeball tracking module 301 catch spectators eyeball and with the distance of display screen before, described eyeball tracking module 301, described computing module 302, described Executive Module 303 are first carried out following action:
Described eyeball tracking module 301 catches spectators' face feature information; Described computing module 302 calculates according to described face feature information, draws face feature result; Described Executive Module 303 judges according to described face feature result whether these spectators are children, if so, continue described eyeball tracking module 301 catch spectators eyeball and with the distance of display screen, otherwise eyeball tracking module 301 will stop follow-up work operation.
In a further embodiment, the eyeball tracking module 301 of this device is also for obtaining the intensity signal of environment; The computing module 302 of this device also for and according to described intensity signal, calculate best image screen backlight intensity and the optimum contrast that is applicable to current environment, and export corresponding regulating command; The Executive Module 303 of this device is also for carrying out described regulating command or sending the prompting of asking to carry out described regulating command.
In a further embodiment, the computing module 302 of this device also continues to watch duration for what calculate described spectators according to the process of described seizure spectators' eyeball; If the Executive Module of this device 303 also continues to watch duration to surpass default duration for described, send and remind or export and close described display screen order.
In a further embodiment, this device is all right, obtains the distance H of tracked eyeball 200 and display screen 100, (with reference to figure 2,3,5), this distance H generally get two eyeballs 200 respectively with the mean value of the distance of display screen 100.
In the time of contrast sight line deviation angle, also need, by the distance H getting and corresponding safe distance (predeterminable range) contrast, when surpassing safe distance (viewing distance is less than predeterminable range), to remind spectators to adjust viewing angle.Wherein, safe distance will decide according to the size of display screen 100, can be arranged by the head of a family.It should be noted that, when sight line deviation angle and distance H one of them with together with while exceeding security value (s) system all can send and remind or alarm.
Television-viewing protective device can be television set, display, projector equipment etc., its each embodiment is described in more detail the specific embodiment that please refer to television-viewing guard method, appropriate section, repeat no more here.
In addition, also provide a kind of Set Top Box, this Set Top Box and the mutual communication of equipment with display screen, described Set Top Box comprises above-mentioned television-viewing protective device.
Above-mentioned television-viewing guard method or device are set in Set Top Box; can utilize camera to pass through eyeball, picture charge pattern technology; detect posture, distance and angle that spectators watch, when spectators' posture, distance or angle not at that time, give the alarm and remind spectators' adjustment.Can effectively reduce spectators', particularly child myopia probability, strengthen sight protectio; Meanwhile, supervise spectators', particularly children the posture of watching, correct figure.In addition, in Set Top Box in the course of the work, can detect the environment that spectators watch TV, calculate optimum backlight of television intensity and contrast, and automatically adjust volume to optimal value.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a television-viewing guard method, is characterized in that, comprises the following steps:
Catch spectators' eyeball;
According to the spectators' that capture eyeball, calculate the sight line deviation angle of the relative display screen of described spectators;
If described sight line deviation angle is greater than preset angles, send prompting, within prompting spectators are adjusted to preset angles.
2. television-viewing guard method as claimed in claim 1, is characterized in that, described sight line deviation angle comprises:
Described spectators drop on the sight line of described display screen and the first deviation angle of described display screen place horizontal plane;
Described spectators drop on the sight line of described display screen and the second deviation angle of described display screen place vertical plane;
Described the first deviation angle and/or described the second deviation angle exceed preset angles, send prompting.
3. television-viewing guard method as claimed in claim 1 or 2; it is characterized in that; described method also comprises: according to the eyeball that captures spectators; calculate the forward sight line place plane of spectators' two eyeballs and the side-looking deviation angle of described display screen place horizontal plane; if described side-looking deviation angle is greater than angle threshold for a long time; watch fault, remind spectators to correct and watch posture.
4. television-viewing guard method as claimed in claim 1 or 2, is characterized in that, further comprising the steps of before the step of described seizure spectators' eyeball:
Catch spectators' face feature information;
According to described face feature information, calculate, draw face feature result;
According to described face feature result, judge whether these spectators are children, if so, continue to carry out subsequent step, otherwise stop carrying out subsequent step.
5. television-viewing guard method as claimed in claim 1 or 2, is characterized in that, described method also comprises:
That according to the step of described seizure spectators' eyeball, calculates described spectators continues to watch duration;
If described, continue to watch duration to surpass default duration, send and remind or output shutdown command.
6. television-viewing guard method as claimed in claim 1 or 2, is characterized in that, described method also comprises:
Obtain the intensity signal of environment, according to described intensity signal, calculate best image screen backlight intensity and the optimum contrast that is applicable to current environment, and export corresponding regulating command, carry out described regulating command or send the prompting of asking to carry out described regulating command;
Or/and
Obtain the viewing distance of spectators and display screen, when viewing distance is less than predeterminable range, reminding user is adjusted viewing distance.
7. a television-viewing protective device, is characterized in that, comprising:
Eyeball tracking module, for catching spectators' eyeball;
Computing module, for according to the spectators' that capture eyeball, calculates the sight line deviation angle of the relative display screen of described spectators;
Executive Module, if be greater than preset angles for described sight line deviation angle, sends prompting, within prompting spectators are adjusted to preset angles.
8. television-viewing protective device as claimed in claim 7, is characterized in that, described sight line deviation angle comprises:
Described spectators drop on the sight line of described display screen and the first deviation angle of described display screen place horizontal plane;
Described spectators drop on the sight line of described display screen and the second deviation angle of described display screen place vertical plane;
Described Executive Module also for, if the 3rd deviation angle exceeds preset angles described in described the first deviation angle and/or described the second deviation angle, send prompting.
9. television-viewing protective device as claimed in claim 7, is characterized in that, described computing module also for, according to the eyeball that captures spectators, calculate the forward sight line place plane of spectators' two eyeballs and the side-looking deviation angle of described display screen place horizontal plane;
Described Executive Module also for, if described side-looking deviation angle is greater than angle threshold for a long time, watch fault, remind spectators to correct and watch posture.
10. a Set Top Box, with the mutual communication of the equipment with display screen, is characterized in that, described Set Top Box comprises the eyesight based on Set Top Box, the limb protection system described in claim 7 to 9 any one.
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| CN201310608104.6A CN103607622A (en) | 2013-11-25 | 2013-11-25 | Television watching protecting method, device and set top box |
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| CN201310608104.6A CN103607622A (en) | 2013-11-25 | 2013-11-25 | Television watching protecting method, device and set top box |
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| CN104637263A (en) * | 2015-01-30 | 2015-05-20 | 刘博� | Device and method for preventing myopia and correcting sitting posture |
| CN104683867A (en) * | 2015-03-23 | 2015-06-03 | 三星电子（中国）研发中心 | Method and device for reconfiguring video playing parameter and video playing equipment |
| CN105573627A (en) * | 2015-04-28 | 2016-05-11 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for prompting user to protect eyes through intelligent glasses |
| CN105812578A (en) * | 2016-05-10 | 2016-07-27 | 宁波高科美电子技术有限公司 | Active myopia preventing method of mobile display device |
| CN105929702A (en) * | 2016-04-29 | 2016-09-07 | 四川邮科通信技术有限公司 | Smart home monitoring method |
| CN106033638A (en) * | 2015-03-19 | 2016-10-19 | 鸿富锦精密工业(武汉)有限公司 | Intelligent prompting system and method |
| US9508005B2 (en) | 2014-06-30 | 2016-11-29 | Tianma Micro-Electronics Co., Ltd. | Method for warning a user about a distance between user' s eyes and a screen |
| CN106448086A (en) * | 2016-08-30 | 2017-02-22 | 河海大学常州校区 | Eyesight protection device and method for detecting reading posture based on TOF depth camera |
| CN106792194A (en) * | 2016-12-23 | 2017-05-31 | 深圳Tcl新技术有限公司 | Television shutdown method and system |
| CN106919250A (en) * | 2015-12-28 | 2017-07-04 | 中国移动通信集团公司 | A kind of based reminding method and device |
| CN106973326A (en) * | 2017-04-28 | 2017-07-21 | 张青 | It is capable of the intelligent TV set and its control system and control method of intelligent standby |
| CN106998499A (en) * | 2017-04-28 | 2017-08-01 | 张青 | It is capable of the intelligent TV set and its control system and control method of intelligent standby |
| CN107197377A (en) * | 2017-06-01 | 2017-09-22 | 王振仁 | Myopia prevention intelligent prompt method and myopia prevention intelligent prompter |
| CN107850788A (en) * | 2015-07-03 | 2018-03-27 | 依视路国际公司 | Method for augmented reality and system |
| CN108769790A (en) * | 2018-06-29 | 2018-11-06 | 百度在线网络技术（北京）有限公司 | Method and apparatus for control terminal |
| CN109714619A (en) * | 2018-12-14 | 2019-05-03 | 广州市科虎电子有限公司 | A kind of smart television |
| CN110414419A (en) * | 2019-07-25 | 2019-11-05 | 四川长虹电器股份有限公司 | A kind of posture detecting system and method based on mobile terminal viewer |
| CN113535108A (en) * | 2021-07-27 | 2021-10-22 | 深圳创维－Rgb电子有限公司 | Eyesight protection method, display device, readable storage medium and system |
| CN117631871A (en) * | 2023-10-25 | 2024-03-01 | 南京凯影医疗科技有限公司 | Interactive touch liquid crystal display |
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| US9508005B2 (en) | 2014-06-30 | 2016-11-29 | Tianma Micro-Electronics Co., Ltd. | Method for warning a user about a distance between user' s eyes and a screen |
| CN104637263A (en) * | 2015-01-30 | 2015-05-20 | 刘博� | Device and method for preventing myopia and correcting sitting posture |
| CN106033638A (en) * | 2015-03-19 | 2016-10-19 | 鸿富锦精密工业(武汉)有限公司 | Intelligent prompting system and method |
| CN104683867A (en) * | 2015-03-23 | 2015-06-03 | 三星电子（中国）研发中心 | Method and device for reconfiguring video playing parameter and video playing equipment |
| CN105573627A (en) * | 2015-04-28 | 2016-05-11 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for prompting user to protect eyes through intelligent glasses |
| CN105573627B (en) * | 2015-04-28 | 2018-10-26 | 宇龙计算机通信科技(深圳)有限公司 | It is a kind of to prompt the method and device that user carries out eyeshield by intelligent glasses |
| CN107850788A (en) * | 2015-07-03 | 2018-03-27 | 依视路国际公司 | Method for augmented reality and system |
| CN106919250A (en) * | 2015-12-28 | 2017-07-04 | 中国移动通信集团公司 | A kind of based reminding method and device |
| CN105929702A (en) * | 2016-04-29 | 2016-09-07 | 四川邮科通信技术有限公司 | Smart home monitoring method |
| CN105812578A (en) * | 2016-05-10 | 2016-07-27 | 宁波高科美电子技术有限公司 | Active myopia preventing method of mobile display device |
| CN106448086A (en) * | 2016-08-30 | 2017-02-22 | 河海大学常州校区 | Eyesight protection device and method for detecting reading posture based on TOF depth camera |
| CN106792194A (en) * | 2016-12-23 | 2017-05-31 | 深圳Tcl新技术有限公司 | Television shutdown method and system |
| CN106973326A (en) * | 2017-04-28 | 2017-07-21 | 张青 | It is capable of the intelligent TV set and its control system and control method of intelligent standby |
| CN106998499A (en) * | 2017-04-28 | 2017-08-01 | 张青 | It is capable of the intelligent TV set and its control system and control method of intelligent standby |
| CN107197377A (en) * | 2017-06-01 | 2017-09-22 | 王振仁 | Myopia prevention intelligent prompt method and myopia prevention intelligent prompter |
| CN108769790A (en) * | 2018-06-29 | 2018-11-06 | 百度在线网络技术（北京）有限公司 | Method and apparatus for control terminal |
| CN109714619A (en) * | 2018-12-14 | 2019-05-03 | 广州市科虎电子有限公司 | A kind of smart television |
| CN110414419A (en) * | 2019-07-25 | 2019-11-05 | 四川长虹电器股份有限公司 | A kind of posture detecting system and method based on mobile terminal viewer |
| CN113535108A (en) * | 2021-07-27 | 2021-10-22 | 深圳创维－Rgb电子有限公司 | Eyesight protection method, display device, readable storage medium and system |
| CN117631871A (en) * | 2023-10-25 | 2024-03-01 | 南京凯影医疗科技有限公司 | Interactive touch liquid crystal display |
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Application publication date: 20140226 |