CN112967651A - Display control method and display device - Google Patents
Display control method and display device Download PDFInfo
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- CN112967651A CN112967651A CN202110242837.7A CN202110242837A CN112967651A CN 112967651 A CN112967651 A CN 112967651A CN 202110242837 A CN202110242837 A CN 202110242837A CN 112967651 A CN112967651 A CN 112967651A
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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
- G09G3/2003—Display of colours
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
Abstract
The present disclosure discloses a display control method and a display device, the display control method including: acquiring current working environment parameters based on preset eye protection triggering conditions; matching the eye protection triggering condition with the current working environment parameter to obtain a triggering result corresponding to the current working environment parameter; when the triggering result represents that the eye protection mode needs to be switched, processing the driving data corresponding to the content to be displayed to obtain adjusted driving data; and displaying the content to be displayed based on the adjusted driving data. The corresponding trigger result is obtained through the matching calculation of the eye protection trigger condition and the current working environment parameter, the corresponding driving data is adjusted, and then the corresponding eye protection mode is switched, so that the normal image quality impression can be met, and the vision of the watching object can be automatically protected.
Description
Technical Field
The disclosure relates to the technical field of display, in particular to a display control method and display equipment.
Background
In modern life pursuing high efficiency and fast pace, the projector can be applied to temporary conferences, technical lectures, network centers and command and monitoring centers, can also be connected with computers, workstations and the like, or can be connected with video recorders, televisions, video disc players and physical exhibition stands, can also project and play various local video contents and the like, and can be an image device with very wide application.
However, in the existing projection technology, the blue light is not correspondingly flexibly controlled, wherein the blue light with the wave band of 400 nm to 500 nm has great harm to human eyes, and especially to the juveniles in the growth stage; if the low blue light projection technology is uniformly adopted, the image quality impression of adults is inevitably reduced.
Disclosure of Invention
The present disclosure provides a display control method and a display device, which alleviate the technical problem that the display technology cannot meet the normal image quality impression and can automatically protect the vision of the watching object.
In a first aspect, the present disclosure provides a display control method, including: acquiring current working environment parameters based on preset eye protection triggering conditions; matching the eye protection triggering condition with the current working environment parameter to obtain a triggering result corresponding to the current working environment parameter; when the triggering result represents that the eye protection mode needs to be switched, processing the driving data corresponding to the content to be displayed to obtain adjusted driving data; and displaying the content to be displayed based on the adjusted driving data.
Optionally, the step of obtaining the current working environment parameter based on a preset eye protection triggering condition includes: determining an eye protection triggering condition according to at least one of preset display data, a preset facial feature, a preset voice feature, a preset film watching time period and a preset blue light color temperature range; and acquiring current working environment parameters based on at least one of current display data, current facial features, current voice features, current film watching time and current blue color temperature.
Optionally, the step of matching the eye protection triggering condition with the current working environment parameter to obtain a triggering result corresponding to the current working environment parameter includes: obtaining the matching quantity corresponding to the matching result based on the eye protection triggering condition and the matching result of each parameter item in the current working environment parameter; and obtaining a corresponding trigger result according to the matching quantity.
Optionally, the trigger result comprises a first trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a first matching quantity when the matching result comprises any one of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a first trigger result according to the first matching quantity.
Optionally, the trigger result further includes a second trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a second phase matching quantity when the matching result comprises any two parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a second trigger result according to the second matching number.
Optionally, the trigger result further includes a third trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a third phase matching quantity when the matching result comprises any three parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a third trigger result according to the third phase matching quantity.
Optionally, the trigger result further includes a fourth trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a fourth matching quantity when the matching result comprises any four parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a fourth trigger result according to the fourth matching quantity.
Optionally, the trigger result further includes a fifth trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a fifth matching quantity when the matching result comprises a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a fifth trigger result according to the fifth matching quantity.
Optionally, the eye protection mode includes at least one of a first low blue light mode, a second low blue light mode, a third low blue light mode, a fourth low blue light mode, and a fifth low blue light mode; when the triggering result represents that the eye protection mode needs to be switched, processing the driving data corresponding to the content to be displayed to obtain the adjusted driving data, wherein the step comprises the following steps of: establishing a sequential corresponding relation between the first trigger result to the fifth trigger result and the first low blue light mode to the fifth low blue light mode; and based on different trigger results, switching to the corresponding low blue light mode, and sending a corresponding low blue light mode prompt message.
In a second aspect, the present disclosure also provides a display device, which includes an obtaining module, a matching calculation module, a processing module, and a display module; the acquisition module is used for acquiring current working environment parameters based on preset eye protection triggering conditions; the matching calculation module is used for matching the eye protection triggering condition with the current working environment parameter to obtain a triggering result corresponding to the current working environment parameter; the processing module is used for processing the driving data corresponding to the content to be displayed when the triggering result represents that the eye protection mode needs to be switched to, and obtaining the adjusted driving data; the display module is used for displaying the content to be displayed based on the adjusted driving data.
According to the display control method and the display device, the corresponding trigger result is obtained through matching calculation of the eye protection trigger condition and the current working environment parameter, the corresponding driving data is adjusted, and then the corresponding eye protection mode is switched to, so that the normal image quality impression can be met, and the vision of a watching object can be automatically protected.
Drawings
The technical solutions and other advantages of the present disclosure will become apparent from the following detailed description of specific embodiments of the present disclosure, which is to be read in connection with the accompanying drawings.
Fig. 1 is a schematic flow chart of a display control method according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
Fig. 3 is another schematic structural diagram of a projection apparatus provided in an embodiment of the present disclosure.
Fig. 4 is another schematic flow chart of a projection method according to an embodiment of the present disclosure.
Fig. 5 is a schematic diagram of a projection operation provided in the embodiment of the present disclosure.
Description of reference numerals:
1-an acquisition module; 2-a matching calculation module; 3-a processing module; 4-a display module; 10-an identification module; 20-a control module; 30-a drive module; 40-light source module.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Referring to fig. 1 to 5, as shown in fig. 1, in one embodiment, the present disclosure provides a display control method, which includes the following steps:
step S10: and acquiring current working environment parameters based on preset eye protection triggering conditions.
Step S20: and matching the eye protection triggering conditions with the current working environment parameters to obtain triggering results corresponding to the current working environment parameters.
Step S30: and when the triggering result represents that the eye protection mode needs to be switched, processing the driving data corresponding to the content to be displayed to obtain the adjusted driving data.
Step S40: and displaying the content to be displayed based on the adjusted driving data.
It can be understood that, according to the display control method provided by the disclosure, the corresponding trigger result is obtained through the matching calculation of the eye protection trigger condition and the current working environment parameter, the corresponding driving data is adjusted, and then the corresponding eye protection mode is switched to, so that not only can the normal image quality impression be satisfied, but also the vision of the watching object can be automatically protected.
It should be noted that the eye protection triggering condition in this embodiment may include, but is not limited to, at least one of preset juvenile display content, facial features of the juvenile, voice features of the juvenile, habitual viewing time period of the juvenile, and blue color temperature range for display. Correspondingly, the current working environment parameter is at least one of projection content, facial features, voice features, film watching time and blue light color temperature values corresponding to the eye protection triggering conditions.
The blue color temperature range in the embodiment can be understood as follows: in the display, one of the light sources required is a blue light source, and a predetermined range is provided for the color temperature of the blue light emitted by the blue light source, where the predetermined range may be a range formed by color temperature values that may be damaged by the blue light when the young people watch the film.
It is understood that the eye protection triggering condition is some condition that has been obtained or obtained in advance, for example, facial features, voice features, names of animation films watched by the eye protection triggering condition, and the like of a certain underage viewing object.
What needs to be explained, the matching process of the eye protection triggering condition and the current working environment parameter is as follows: when both of the eye protection triggering conditions and the current working environment parameters comprise a plurality of different types of parameter items, only the same type of parameter items in the eye protection triggering conditions and the current working environment parameters are compared, and the different types of parameter items in the eye protection triggering conditions and the current working environment parameters are not compared. For example, the parameter items of the facial features in the current working environment parameters are only compared with the parameter items of the facial features in the eye protection triggering condition, and the parameter items of the facial features in the current working environment parameters are not compared with the parameter items of the voice features in the eye protection triggering condition.
The eye protection mode may be a display mode in which projection blue light is specially processed and eyesight can be protected.
The driving data may be, but is not limited to, power control data for projecting blue light, or duty cycle data for projecting blue light. The driving data may also be light emission power control data for a blue sub-pixel for displaying blue light, or duty cycle data for controlling light emission of the blue sub-pixel.
It should be noted that the display control method in the present embodiment may be applied to, but not limited to, display of a display panel, and may also be applied to the field of projection technology.
In one embodiment, the step of obtaining the current working environment parameter based on a preset eye protection triggering condition includes: determining an eye protection triggering condition according to at least one of preset display data, a preset facial feature, a preset voice feature, a preset film watching time period and a preset blue light color temperature range; and acquiring current working environment parameters based on at least one of current display data, current facial features, current voice features, current film watching time and current blue color temperature.
It is understood that the preset display data, the preset facial feature, the preset voice feature and the preset viewing period can be set as corresponding data of the juveniles, especially the viewing objects in the stage of children or teenagers. Similarly, the current display data, the current facial feature, the current speech feature, and the current viewing time may also be set as the corresponding data of the juveniles, particularly the viewing subjects in the children stage or the teenager stage.
In one embodiment, the step of matching the eye protection triggering condition with the current working environment parameter to obtain a triggering result corresponding to the current working environment parameter includes: obtaining the matching quantity corresponding to the matching result based on the eye protection triggering condition and the matching result of each parameter item in the current working environment parameter; and obtaining a corresponding trigger result according to the matching quantity.
In one embodiment, the trigger result comprises a first trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a first matching quantity when the matching result comprises any one of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a first trigger result according to the first matching quantity.
In one embodiment, the trigger result further comprises a second trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a second phase matching quantity when the matching result comprises any two parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a second trigger result according to the second matching number.
In one embodiment, the trigger result further comprises a third trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a third phase matching quantity when the matching result comprises any three parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a third trigger result according to the third phase matching quantity.
In one embodiment, the trigger result further comprises a fourth trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a fourth matching quantity when the matching result comprises any four parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a fourth trigger result according to the fourth matching quantity.
In one embodiment, the trigger result further includes a fifth trigger result; and obtaining a corresponding trigger result according to the matching quantity, wherein the step comprises the following steps of: determining the matching quantity as a fifth matching quantity when the matching result comprises a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item; and obtaining a fifth trigger result according to the fifth matching quantity.
In one embodiment, the eye protection mode includes at least one of a first low blue light mode, a second low blue light mode, a third low blue light mode, a fourth low blue light mode, and a fifth low blue light mode; when the triggering result represents that the eye protection mode needs to be switched, processing the driving data corresponding to the content to be displayed to obtain the adjusted driving data, wherein the step comprises the following steps of: establishing a sequential corresponding relation between the first trigger result to the fifth trigger result and the first low blue light mode to the fifth low blue light mode; and based on different trigger results, switching to the corresponding low blue light mode, and sending a corresponding low blue light mode prompt message.
It should be noted that, the specific content of the low-blue light mode prompt message may be, but is not limited to: the eye-protection mode has been turned on. It may also be that the first low blue light mode is turned on, or that the second low blue light mode is turned on, or that the fifth low blue light mode is turned on. The sending object of the low-blue light mode prompt message may be a principal of the projection place, for example, when the projection place is a home environment, the principal may be a householder or a parent, or may be another family member.
It is understood that the low-blue light mode prompt message may be various prompt messages that the receiving terminal may receive, such as instant notification information, e.g., short message, WeChat, email, etc. The receiving terminal may be, but not limited to, a mobile phone, a tablet computer, a notebook computer, or the like.
It should be noted that the first low blue light mode, the second low blue light mode, the third low blue light mode, the fourth low blue light mode, and the fifth low blue light mode are different low blue light modes in which blue light power and/or blue light duty cycle are sequentially reduced.
It can be understood that, as the matching number of corresponding parameter items in the eye protection triggering condition and the current working environment parameter is more and more, it indicates that the film viewing object is more likely to have minors, and/or the number of minors is more, and therefore, a deeper low blue light mode is required to protect the vision of the minor film viewing object, especially the film viewing object in the children stage or the youth stage.
As shown in fig. 2, in one embodiment, the present disclosure also provides a display device, which includes an obtaining module 1, a matching calculation module 2, a processing module 3, and a display module 4; the acquisition module 1 is used for acquiring current working environment parameters based on preset eye protection triggering conditions; the matching calculation module 2 is used for matching the eye protection triggering conditions with the current working environment parameters to obtain triggering results corresponding to the current working environment parameters; the processing module 3 is used for processing the driving data corresponding to the content to be displayed when the triggering result represents that the eye protection mode needs to be switched to, and obtaining the adjusted driving data; the display module 4 is configured to display the content to be displayed based on the adjusted driving data.
It can be understood that, the display device provided by the present disclosure obtains the corresponding trigger result through the matching calculation of the eye protection trigger condition and the current working environment parameter, adjusts the corresponding driving data, and further switches to the corresponding eye protection mode, which not only can satisfy the normal image quality impression, but also can automatically protect the vision of the watching object.
Referring to fig. 3 to 5, as shown in fig. 3, the present embodiment provides a projection device, the working mode of the projection device includes, but is not limited to, a normal mode and an eye protection mode, and the projection device includes an identification module 10 and a control module 20; the identification module 10 is configured to output a corresponding mode switching signal when the viewing object includes a minor and the color temperature of the projected blue light is within at least one preset range; the control module 20 is connected to the identification module 10 and configured to control the projection device to operate in the eye protection mode according to the mode switching signal.
It can be understood that, in this embodiment, the recognition module 10 can recognize that the viewing object includes a minor and/or the color temperature of the projected blue light is within a preset range, and the projection device can be controlled to operate in the eye protection mode by the mode switching signal output by the recognition module, so that the image quality impression of the minor can be satisfied, and the eyesight damage of the blue light to the minor can be reduced.
It should be noted that, in this embodiment, the normal mode may be a normal projection mode, which can provide various optimal color lights according to the display requirements of the projection image quality, for example, blue light emitted by the light source, and in the normal mode, the power or the period ratio of the blue light is not intentionally controlled or limited, so that in some cases, the power or the period ratio of the blue light is too large, which may cause blue light damage to the viewing object.
The eye protection mode may be a projection mode having a function of reducing the damage of the human eyes by blue light, and may reduce the display quality of the projection image quality in order to realize the function of protecting the human eyes. The eye protection mode may be implemented by reducing the power of the blue light or reducing the operation time of the blue light.
The color temperature of the projected blue light is in the preset range, so that the damage of the blue light with certain color temperature values to human eyes is serious, when the condition is identified, the projection equipment can be switched to an eye protection mode to work, and even if no minors exist, the adult can be protected appropriately. The predetermined range may be set to a range larger than a predetermined value, and the predetermined value may be a critical color temperature value, such as 3000K or 4000K, which may cause blue light damage or may not cause blue light damage. The preset range may also be set to 4000K to 6000K. Therefore, the color temperature range which can achieve the purpose of eyesight protection can be adopted.
In one embodiment, the recognition module 10 includes at least one of a content to be projected recognition sub-module, a face recognition sub-module, a voice recognition sub-module, a viewing period recognition sub-module, and a color temperature recognition sub-module. The mode switching signal includes at least one of a first switching sub-signal, a second switching sub-signal, a third switching sub-signal, a fourth switching sub-signal, and a fifth switching sub-signal. The content to be projected identification submodule is connected with the control module 20 and is used for outputting a first switching sub-signal to a first interface of the control module 20 when the content to be projected belongs to the juvenile category. The face recognition sub-module is connected to the control module 20, and is configured to output a second switching sub-signal to a second interface of the control module 20 when the viewing object is determined to belong to a minor according to the facial features. The voice recognition sub-module is connected to the control module 20, and is configured to output a third switch sub-signal to a third interface of the control module 20 when determining that the viewing object belongs to a minor according to the voice characteristics. The viewing period identification submodule is connected to the control module 20, and is configured to output a fourth switching sub-signal to a fourth interface of the control module 20 when it is determined that the viewing period belongs to the preset time range. And the color temperature identification submodule is connected with the control module 20 and is used for outputting a fifth switching submodule signal to a fifth interface of the control module 20 when the color temperature of the projection blue light is judged to be in a preset range.
It should be noted that the content to be projected identification submodule stores playing contents of a minor category, such as animation films, learning contents of primary schools to high schools, national culture, and the like, which are suitable for minor viewing, or video and audio contents. When the to-be-projected content identification submodule identifies the projection device to call the video or audio-video content to perform projection playing, the projection content identification submodule outputs a first switching sub-signal to the first interface of the control module 20, and then the control module 20 controls the projection device to work in an eye protection mode.
In one embodiment, the to-be-projected content identification submodule may include a to-be-projected content acquisition unit, a to-be-projected content comparison unit, and a first storage unit; the to-be-projected content comparing unit is connected to the to-be-projected content acquiring unit, the first storage unit, and the first interface of the control module 20. The first storage unit is used for storing movie and video or audio-video content suitable for young people to watch. The to-be-projected content acquiring unit acquires to-be-projected content of an external video source from the projection device, and when the to-be-projected content comparing unit compares the to-be-projected content of the external video source with the video or audio-video content in the first storage unit to be the same or similar, the to-be-projected content comparing unit outputs a first switching sub-signal to a first interface of the control module 20, so that the control module 20 controls the projection device to work in an eye protection mode.
The content to be projected of the video or audio-visual content and the external video source in the first storage unit may be, but not limited to, video data, or may only be a name of the video or audio-visual content or a name of the content to be projected. It can be understood that if only the comparison of the names is performed, the storage space of the first storage unit can be effectively saved.
In one embodiment, the face recognition sub-module may include a face obtaining unit, a face comparing unit, and a second storage unit; the face comparing unit is connected to the face acquiring unit, the second storage unit and the second interface of the control module 20. The face acquisition unit is used for acquiring the face characteristic information of the current film watching object data. The second storage unit is used for storing the face feature information of one or more specified minors. The face comparing unit compares that the face feature information from the face acquiring unit is the same or approximately the same as the face feature information from the second storage unit, and the face comparing unit outputs a second switching sub-signal to the second interface of the control module 20, so that the control module 20 controls the projection device to operate in the eye protection mode.
The specific one or more minors may be the subject who is younger in age and needs eye protection among the family members, or may be at least one of friends, classmates, and relatives who have a high frequency of coming and going.
In one embodiment, the voice recognition sub-module may include a voice obtaining unit, a voice comparing unit, and a third storage unit; the voice comparing unit is connected with the voice acquiring unit, the second storage unit and the third interface of the control module 20. The voice acquiring unit is used for acquiring voice characteristic information of the current film watching object data. The third storage unit is used for storing the voice characteristic information of one or more specified minors. The voice comparing unit compares that the voice feature information from the voice acquiring unit is the same or approximately the same as the voice feature information from the third storage unit, and the voice comparing unit outputs a third switching sub-signal to the third interface of the control module 20, so that the control module 20 controls the projection device to operate in the eye protection mode.
In one embodiment, the viewing period identifying sub-module may include a viewing time acquiring unit, a viewing period comparing unit, and a fourth storing unit; the viewing time period comparing unit is connected to the viewing time acquiring unit, the fourth storage unit and the fourth interface of the control module 20. The film watching time acquiring unit is used for acquiring the current film watching time. The fourth storage unit is used for storing one or more viewing periods, such as breakfast periods, lunch periods or dinner periods; or may be one or more leisure sessions. These viewing periods are some periods where the likelihood of a minor viewing a projection is greater. The film watching time period comparing unit compares whether the current film watching time acquired by the film watching time acquiring unit belongs to the category of the film watching time period in the fourth storage unit, if so, the film watching time period comparing unit outputs a fourth switching sub-signal to the fourth interface of the control module 20, and then the control module 20 controls the projection device to work in the eye protection mode.
In summary, the present disclosure provides one or more judgment conditions that may be used as viewing objects including minors, and it can be understood that the content to be projected recognition submodule, the face recognition submodule, the voice recognition submodule, and the viewing period recognition submodule may all be configured to correspondingly execute one judgment condition. When the number of the satisfied judgment conditions is larger, it can be said that the precision or accuracy of the viewing object including the minor is higher. Therefore, there is a need to provide different levels of low-blue light protection modes for different possibilities of viewing objects including minors. For example, when only one judgment condition is satisfied, the possibility that the viewing object includes a minor is low, and at this time, the power and/or the working time of the projection blue light can be properly reduced, so that the visual damage of the projection blue light to the minor can be prevented, and the display image quality of the projection can be ensured to the maximum extent. For another example, when the four determination conditions are satisfied, it is indicated that the viewing object has a high possibility of including minors, and at this time, the power and/or the operating time of the projection blue light may be reduced to a greater extent, so as to prevent the projection blue light from mainly damaging the eyesight of the minors, and at the same time, sacrifice the display image quality of some projections. The specific implementation is as follows:
in one embodiment, the eye-protection mode includes a first low blue light mode; when any one of the first switching sub-signal, the second switching sub-signal, the third switching sub-signal, the fourth switching sub-signal, and the fifth switching sub-signal is active, the control module 20 controls the projection device to operate in the first low-blue light mode.
It should be noted that, the first switch sub-signal, the second switch sub-signal, the third switch sub-signal, the fourth switch sub-signal, and the fifth switch sub-signal may be, but not limited to, square wave signals, and a high potential or a low potential of the square wave signal may be selected as an active level. For example, when the first switching sub-signal is active, the first switching sub-signal is at a high potential. Or when the first switching sub-signal is active, the first switching sub-signal is at a low potential.
It is understood that any switching sub-signal effectively indicates that only one judgment condition that the viewing object includes minor is satisfied, and the viewing object at this time has a low possibility of including minor.
In one embodiment, the eye-protection mode includes a second low blue light mode; when any two switching sub-signals of the first switching sub-signal, the second switching sub-signal, the third switching sub-signal, the fourth switching sub-signal and the fifth switching sub-signal are valid, the control module 20 controls the projection device to operate in the second low-blue light mode; wherein the blue light power in the second low blue light mode is smaller than the blue light power in the first low blue light mode.
It should be noted that, in this embodiment, the operating duration of the blue light in the second low blue light mode is shorter than the operating duration of the blue light in the first low blue light mode. By reducing the operating time of the blue light, protection of the vision of minors, in particular children, can likewise be achieved.
It is understood that any two switching sub-signals effectively indicate that the judgment condition that two viewing objects include minor is satisfied, and the probability that the viewing object includes minor is slightly higher.
In one embodiment, the eye-protection mode includes a third low-blue light mode; when any three switching sub-signals of the first switching sub-signal, the second switching sub-signal, the third switching sub-signal, the fourth switching sub-signal and the fifth switching sub-signal are valid, the control module 20 controls the projection device to operate in the third low-blue light mode; wherein the blue power in the third low blue light mode is smaller than the blue power in the second low blue light mode.
It should be noted that, in this embodiment, the driving current of the blue light in the third low blue light mode is smaller than the driving current of the blue light in the second low blue light mode. It will be appreciated that by reducing the drive current for blue light, the visual impairment of projected blue light to minors, particularly children, may likewise be reduced.
In one embodiment, the eye-protection mode includes a fourth low-blue light mode; when any four switching sub-signals of the first switching sub-signal, the second switching sub-signal, the third switching sub-signal, the fourth switching sub-signal and the fifth switching sub-signal are valid, the control module 20 controls the projection device to operate in the fourth low-blue light mode; wherein the blue power in the fourth low blue light mode is less than the blue power in the third low blue light mode.
In one embodiment, the eye-protection mode includes a fifth low-blue light mode; when the first switching sub-signal, the second switching sub-signal, the third switching sub-signal, the fourth switching sub-signal, and the fifth switching sub-signal are all valid, the control module 20 controls the projection device to operate in a fifth low-blue light mode; wherein the blue power in the fifth low blue light mode is smaller than the blue power in the fourth low blue light mode.
As shown in fig. 3, in one embodiment, the projection device further includes a light source module 40 and a driving module 30; the light source module 40 includes a blue light source; the driving module 30 is connected to the control module 20 and the light source module 40, and is configured to drive the light source module 40 to output blue light with corresponding power according to different control signals output by the control module 20.
It should be noted that the control module 20 may determine the corresponding mode switching signal according to different permutation and combination of the first switching sub-signal, the second switching sub-signal, the third switching sub-signal, the fourth switching sub-signal, and the fifth switching sub-signal.
For example, the first switching sub-signal is low; the second switching sub-signal is high; the third switching sub-signal is high; the fourth switch sub-signal is at a low potential; and the fifth switching sub-signal is high; wherein, the low potential is indicated by 0, and the high potential is indicated by 1, then one permutation and combination of the first switching sub-signal, the second switching sub-signal, the third switching sub-signal, the fourth switching sub-signal and the fifth switching sub-signal can be represented as 01101, or can also be represented as 10110, and correspondingly, the control module 20 can output a corresponding control signal according to different mode switching signals, so as to control the driving module 30 to output a driving signal corresponding to the power or the working period, so as to drive the blue light source to adapt to different low blue light modes.
In one embodiment, when the projection apparatus operates in the normal mode, the driving module 30 drives the blue light source to operate at a normal current value, and/or the driving module 30 drives the light source module 40 to operate at a normal duty cycle; when the projection device works in the eye protection mode, the driving module 30 drives the blue light source to work at the eye protection current value, and/or the driving module 30 drives the blue light source to work at the eye protection working period; wherein, the eye protection current value is less than or equal to 60% of the normal current value; and/or the eye-shielding duty cycle is less than or equal to 27% of the normal duty cycle.
It should be noted that the eye protection current value in the first low blue light mode may be, but is not limited to, 60% of the normal current value; and/or, the eye-protection duty cycle in the first low-blue light mode may be, but is not limited to, 27% of the normal duty cycle. The eye-protection current value in the second low blue light mode may be, but is not limited to, 55% of the normal current value; and/or, the eye-protection duty cycle in the second low-blue light mode may be, but is not limited to, 25% of the normal duty cycle. The eye-protection current value in the third low blue light mode may be, but is not limited to, 50% of the normal current value; and/or, the eye-protection duty cycle in the third low-blue light mode may be, but is not limited to, 22% of the normal duty cycle. The eye-protection current value in the fourth low blue light mode may be, but is not limited to, 40% of the normal current value; and/or, the eye-protection duty cycle in the fourth low-blue light mode may be, but is not limited to, 20% of the normal duty cycle. The eye-protection current value in the fifth low blue light mode may be, but is not limited to, 35% of the normal current value; and/or, the eye-protection duty cycle in the fifth low-blue light mode may be, but is not limited to, 17% of the normal duty cycle.
In one embodiment, the projection device further comprises a multi-stage adjusting knob; the multi-gear adjusting knob is electrically connected to the control module 20. The multi-gear adjusting knob is used for manually controlling the projection equipment to freely switch between the normal mode and different low blue light modes. For example, when the projection device is required to operate in the normal mode, the connection between the identification module 10 and the control module 20 is cut off by the adjustment of the multi-gear adjusting knob. When the projection equipment is required to work in different low blue light modes, a corresponding mode switching signal can be simulated through the multi-gear adjusting knob; specifically, when the fourth low-blue light mode is required, the multi-step adjustment knob controls a transmission path between the signal source and a corresponding interface of the control module 20. For example, when a high-voltage switching sub-signal is required, the connection between the signal source and the corresponding interface of the control module 20 may be conducted; when a low-level switching sub-signal is required, the connection between the signal source and the corresponding interface of the control module 20 may be disconnected.
It should be noted that, the multi-gear adjusting knob is further provided with a neutral gear, and when the multi-gear adjusting knob is located in the neutral gear, the projection apparatus is in an automatic state, and may not be affected by manual control.
In one embodiment, the projection device may be a DLP (Digital Light Processing) technology based projector.
In one embodiment, the projection Device may further include a DMD (Digital micro mirror Device) chip for imaging.
In one embodiment, the control module 20 may be, but is not limited to being, a control chip.
As shown in fig. 4, in one embodiment, the present disclosure provides a projection method comprising the steps of:
step S50: the projection equipment comprises an identification module and a control module which are connected, and the working mode of the projection equipment at least comprises a normal mode and an eye protection mode.
Step S60: the identification module outputs a corresponding mode switching signal when the film watching object comprises a minor and the color temperature of the projected blue light is in at least one preset range.
And step S70: the control module controls the projection equipment to work in an eye protection mode according to the mode switching signal.
It can be understood that, with the projection method provided by the disclosure, the recognition module can recognize that the viewing object includes a minor and/or the color temperature of the projected blue light is within the preset range, and the projection device can be controlled to operate in the eye protection mode through the mode switching signal output by the recognition module, so that the image quality impression of the minor can be met, and the eyesight damage of the blue light to the minor can be reduced.
As shown in FIG. 5, in one embodiment, the projection device may operate, but is not limited to, as follows:
according to the use demand of the film watching object, whether the corresponding low blue light mode needs to be started or not can be judged through the multi-gear adjusting knob, and when the low blue light mode is not needed, the connecting channel between the identification module and the control module is cut off through the multi-gear adjusting knob. When the corresponding low blue light mode needs to be opened, the control module can be correspondingly controlled through the multi-gear adjusting knob, and then the driving module is controlled to output a driving signal with corresponding power or working period, so that the light source is driven to work in the corresponding low blue light mode. When the multi-gear adjusting knob is rotated to a neutral gear, the identification module can analyze whether the projection content belongs to a child program, such as an animation film, according to the video image signal, if so, the DLP chip analyzes the current image signal, analyzes the proportion of blue pixels of the current image in all pixels, and obtains the current for driving the blue light source and/or the proportion of the working period of the blue light in the working period of the whole light source. And then adjusting the blue light current and/or the blue light working period to a corresponding numerical range, thereby automatically realizing that the projection equipment works in different low blue light modes. It can be understood that the projection device can determine whether the current projection content belongs to an animation film by analyzing the video image signal, and if so, automatically turn on different low-blue light modes by reducing the current of the blue light source and/or reducing the ratio of the effective time of the blue light source in a fixed time period.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display control method and the display device provided by the embodiment of the present disclosure are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present disclosure, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the present disclosure; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (10)
1. A display control method, comprising:
acquiring current working environment parameters based on preset eye protection triggering conditions;
matching the eye protection triggering condition with the current working environment parameter to obtain a triggering result corresponding to the current working environment parameter;
when the triggering result represents that the eye protection mode needs to be switched, processing the driving data corresponding to the content to be displayed to obtain adjusted driving data;
and displaying the content to be displayed based on the adjusted driving data.
2. The display control method according to claim 1, wherein the step of obtaining the current working environment parameter based on the preset eye protection triggering condition comprises:
determining the eye protection triggering condition according to at least one of preset display data, preset facial features, preset voice features, preset film watching time periods and a preset blue light color temperature range;
and acquiring the current working environment parameter based on at least one of current display data, current facial features, current voice features, current film watching time and current blue light color temperature.
3. The display control method according to claim 2, wherein the step of matching the eye protection triggering condition with the current working environment parameter to obtain the triggering result corresponding to the current working environment parameter includes:
obtaining the matching quantity corresponding to the matching result based on the eye protection triggering condition and the matching result of each parameter item in the current working environment parameters;
and obtaining the corresponding trigger result according to the matching quantity.
4. The display control method according to claim 3, wherein the trigger result includes a first trigger result; the step of obtaining the corresponding trigger result according to the matching number includes:
determining the matching quantity as a first matching quantity when the matching result comprises any one of a display data parameter item, a face feature parameter item, a voice feature parameter item, a film watching time parameter item and a blue light color temperature parameter item;
and obtaining the first trigger result according to the first matching quantity.
5. The display control method according to claim 3, wherein the trigger result further includes a second trigger result; the step of obtaining the corresponding trigger result according to the matching number includes:
determining the matching quantity as a second phase matching quantity when the matching result comprises any two parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item;
and obtaining the second trigger result according to the second matching number.
6. The display control method according to claim 3, wherein the trigger result further includes a third trigger result; the step of obtaining the corresponding trigger result according to the matching number includes:
determining the matching quantity to be a third phase matching quantity when the matching result comprises any three parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item;
and obtaining the third trigger result according to the third phase matching quantity.
7. The display control method according to claim 3, wherein the trigger result further includes a fourth trigger result; the step of obtaining the corresponding trigger result according to the matching number includes:
determining the matching number to be a fourth matching number when the matching result comprises any four parameter items of a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item;
and obtaining the fourth trigger result according to the fourth matching quantity.
8. The display control method according to claim 3, wherein the trigger result further includes a fifth trigger result; the step of obtaining the corresponding trigger result according to the matching number includes:
determining the matching quantity to be a fifth matching quantity when the matching result comprises a display data parameter item, a face characteristic parameter item, a voice characteristic parameter item, a film watching time parameter item and a blue light color temperature parameter item;
and obtaining the fifth trigger result according to the fifth matching quantity.
9. The display control method according to any one of claims 4 to 8, wherein the eye protection mode includes at least one of a first low blue light mode, a second low blue light mode, a third low blue light mode, a fourth low blue light mode, and a fifth low blue light mode; when the triggering result represents that the eye protection mode needs to be switched, processing the driving data corresponding to the content to be displayed to obtain the adjusted driving data, wherein the step comprises the following steps of:
establishing a sequential corresponding relation between the first trigger result to the fifth trigger result and the first low blue light mode to the fifth low blue light mode;
and switching to the corresponding low blue light mode based on different trigger results, and sending a corresponding low blue light mode prompt message.
10. A display device, comprising:
the acquisition module is used for acquiring current working environment parameters based on preset eye protection triggering conditions;
the matching calculation module is used for matching the eye protection triggering condition with the current working environment parameter to obtain a triggering result corresponding to the current working environment parameter;
the processing module is used for processing the driving data corresponding to the content to be displayed when the triggering result represents that the eye protection mode needs to be switched to, and obtaining the adjusted driving data;
and the display module is used for displaying the content to be displayed based on the adjusted driving data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110242837.7A CN112967651A (en) | 2021-03-05 | 2021-03-05 | Display control method and display device |
| PCT/CN2021/101881 WO2022183633A1 (en) | 2021-03-05 | 2021-06-23 | Projection device, display control method, and display device |
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| CN202110242837.7A CN112967651A (en) | 2021-03-05 | 2021-03-05 | Display control method and display device |
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| WO (1) | WO2022183633A1 (en) |
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| WO2022183633A1 (en) * | 2021-03-05 | 2022-09-09 | 深圳市火乐科技发展有限公司 | Projection device, display control method, and display device |
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