CN111210780A - Display method and device for simulating spectrum presentation of real object - Google Patents
Display method and device for simulating spectrum presentation of real object Download PDFInfo
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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
- G09G3/3406—Control of illumination source
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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
- 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
According to the display method and the display device for simulating the spectrum presentation of the real object disclosed by the embodiment of the invention, the spectrum half width of at least part of channel light sources of the backlight source of the display screen is adjusted to be larger than the preset half width threshold value from the initial value to control the display screen to output the spectrum with the continuity larger than the preset continuity threshold value, so that the spectrum closer to the natural display effect of the real object can be simulated from the spectrum angle. By implementing the invention, the display effect of the display screen is closer to the real display effect of natural objects, and the visual health of the user can be ensured to a greater extent.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display method and a display device for simulating the spectrum presentation of a real object.
Background
Currently, common display technologies include RGB backlight display, RGBW backlight display, and the like, and mainly pursue and improve the light emitting efficiency and the color gamut of the display. When the RGB backlight is used for display, a light source with a small half-wave width is mainly selected to obtain a larger color gamut range, so as to obtain a better display effect. For the backlight source added with the W light source, on one hand, the efficiency can be improved, and on the other hand, when the same color is displayed, a higher brightness range can be achieved, so that the color layering effect is improved visually.
However, when displaying an object that exists in nature, the existing display technology usually only pursues chroma similarity, and the actual spectrum during display is a discontinuous spectrum, but not similar to the actual spectrum of the object, and due to different spectral distributions of the discontinuous spectrum, the display effect deviates from the natural effect presented by the actual object, and may potentially damage the visual health of the user.
Disclosure of Invention
The present invention provides a display method and device for simulating spectrum presentation of a real object, which can at least solve the problems in the related art that when an actual spectrum is a discontinuous spectrum, the display effect is different from the natural effect presented by the real object, and the visual health may be potentially damaged.
To achieve the above object, a first aspect of the embodiments of the present invention provides a display method for simulating a spectral representation of a real object, the method including:
adjusting the spectrum half width of at least part of channel light sources of a backlight source of the display screen from an initial value to be larger than a preset half width threshold value; wherein the total number of channels of the backlight source is greater than or equal to 3;
acquiring the corresponding relation between various chrominance values and a spectral curve when the adjusted display screen outputs preset reference light; wherein the continuity of the spectral curve is greater than a preset continuity threshold;
determining a target spectrum curve according to the chromatic value of a preset real object under the reference light and the corresponding relation;
and controlling the display screen to display the image containing the real object according to the target spectrum curve.
To achieve the above object, a second aspect of the embodiments of the present invention provides a display device for simulating a spectral representation of a real object, the device including:
the adjusting module is used for adjusting the spectral half-width of at least part of channel light sources of the backlight source of the display screen from an initial value to be larger than a preset half-width threshold value; wherein the total number of channels of the backlight source is greater than or equal to 3;
the acquisition module is used for acquiring the corresponding relation between various chrominance values and a spectral curve when the adjusted display screen outputs preset reference light; wherein the continuity of the spectral curve is greater than a preset continuity threshold;
the determining module is used for determining a target spectrum curve according to the chromatic value of a preset real object under the reference light and the corresponding relation;
and the control module is used for controlling the display screen to display the image containing the real object according to the target spectrum curve.
According to the display method and the display device for simulating the spectrum presentation of the real object, provided by the embodiment of the invention, the spectrum half-width of at least part of channel light sources of the backlight source of the display screen is adjusted to be larger than the preset half-width threshold value from the initial value, so that the display screen is controlled to output the spectrum with the continuity larger than the preset continuity threshold value, and the spectrum closer to the natural display effect of the real object can be simulated from the spectrum angle. By implementing the invention, the display effect of the display screen is closer to the real display effect of natural objects, and the visual health of the user can be ensured to a greater extent.
Other features and corresponding effects of the present invention are set forth in the following portions of the specification, and it should be understood that at least some of the effects are apparent from the description of the present invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic basic flow chart of a display method for simulating a spectrum representation of a real object according to a first embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a half-width setting of a spectrum of a three-channel light source according to a first embodiment of the present invention;
FIG. 3 is a schematic continuous spectrum diagram of a three-channel light source according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a half-width setting of a spectrum of a four-channel light source according to a first embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a spectral half-width setting of a multi-channel light source according to a first embodiment of the present invention;
FIG. 6 is a schematic diagram of a spectral half-width setting of another multi-channel light source according to the first embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a display device for simulating a spectrum of a real object according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to a third embodiment of the invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment:
in order to solve the technical problems in the related art that the actual spectrum when displaying a real object in nature is a discontinuous spectrum, the display effect is deviated from the natural effect presented by the real object, and the visual health may be potentially damaged, the present embodiment provides a display method for simulating the spectrum presentation of the real object, as shown in fig. 1, which is a basic flow diagram of the display method for simulating the spectrum presentation of the real object provided by the present embodiment, and the display method for simulating the spectrum presentation of the real object provided by the present embodiment includes the following steps:
Specifically, the total number of channels of the backlight source in this embodiment is greater than or equal to 3, for example, the total number of channels may be three channels RGB light sources, four channels RGBW light sources, and a multi-channel light source (the number of channels is greater than or equal to 5), and the half width of the spectrum refers to a difference between two wavelengths corresponding to a half of the maximum intensity of the spectrum curve, and is used to measure the width of the emission spectrum line. In this embodiment, the light source spectrum half-width is increased to improve the continuity of the spectrum, and certainly, in practical application, the peak wavelength of the light source spectrum may be adjusted by selecting the same.
It should also be noted that the backlight of this embodiment may employ any type of light source that can produce the desired spectrum, and may further employ any light source plus filters or other light source technologies that can produce the desired spectrum.
In an optional implementation manner of this embodiment, after adjusting the spectral half-width of at least part of channel light sources of the backlight of the display screen from the initial value to be greater than the preset half-width threshold, the method further includes: when the number of channels of the backlight source in a working state is smaller than the total number of the channels, selecting a target channel from the rest channels; and adjusting the target channel from the non-working state to the working state.
Specifically, in this embodiment, when the number of the backlight channels adopted by the display screen is greater than 3, the display screen may trigger only a part of the backlight channels to operate during the display process, and in practical application, in order to ensure better spectral continuity, this embodiment may trigger more channels of light sources to operate in addition to the default operating channels, so as to improve the spectral continuity.
And 102, acquiring a corresponding relation between each chromaticity value and a spectrum curve when the adjusted display screen outputs preset reference light.
Specifically, the color gamut of the display screen under the adjusted light source is obtained in this embodiment, and a spectrum corresponding to a chromaticity value of the display screen in the color gamut is obtained. By the half-width adjustment, the continuity of the generated spectral curve can be ensured to be larger than a preset continuity threshold value. In addition, the reference light source of the present embodiment may include CIE standard illumination A, B, C, D, etc. and daylight of various color temperatures.
In an alternative embodiment of this embodiment, when a three-channel RGB light source is used, the half-width of the spectrum of each of the accessible light sources may be set to be greater than 50nm, as shown in fig. 2, which is a schematic diagram of the half-width setting of the spectrum of the three-channel RGB light source provided in this embodiment, wherein the horizontal axis of the coordinate system represents the wavelength (in nm) and the vertical axis represents the relative spectral intensity (in a.u.). And further, in order to ensure better spectral continuity, the partial spectral half-width may also be set to be greater than 100 nm. When the corresponding chromaticity is obtained, the spectral combination of the light source has higher similarity to the natural light spectrum or the reflection spectrum of the real object, and the spectral continuity is stronger, as shown in fig. 3, a schematic continuous spectrum diagram of the three-channel light source provided in this embodiment is shown, wherein a horizontal axis of a coordinate system represents wavelength (in nm), a vertical axis represents relative spectral intensity (in a.u.), at this time, the reference light selected by the light source module is CIE, and the xy chromaticity is (0.3333 ).
In another alternative embodiment of this embodiment, when a four-channel RGBW light source is adopted, the half-width of the spectrum of the RGB channel may be set to be less than 50nm, and the half-width of the spectrum of the W channel may be set to be greater than 100nm, as shown in fig. 4, which is a schematic diagram of the half-width of the spectrum of the four-channel light source provided in this embodiment, wherein the horizontal axis of the coordinate system represents the wavelength (in nm), and the vertical axis represents the relative spectral intensity (in a.u.), and the half-width of the spectrum of the RGB channel is about 40nm, and the W-channel light source has a very wide spectral range. Meanwhile, if the peak wavelength of the used monochromatic light RGB is deviated from the peak wavelength of the W light source, a more continuous spectrum can be obtained when corresponding chromaticity is synthesized. By adopting the four-channel light source of the embodiment, the spectrum combination of the four-channel light source has higher similarity with the natural light spectrum or the real object reflection spectrum when the corresponding chromaticity is obtained, and the efficiency is higher due to the addition of the W light source.
It should be noted that the four-channel backlight described above employs a medium half-width spectrum for the three RGB channels and a wide spectrum for the W channel, while in other embodiments, it is also possible to employ a larger spectrum for the three RGB channels and a wide spectrum for the W channel, for example, setting the half-width of the spectrum of the RGB channel to be greater than 50nm and the half-width of the spectrum of the W channel to be greater than 100 nm. Certainly, in practical applications, the half-widths of the spectra of m channels in the four-channel backlight may also be set to be greater than 50nm, and the half-widths of the spectra of n channels are smaller than 50nm, in this case, it can still be ensured that the spectra have certain continuity, where both the values of m and n are greater than or equal to 0.
In another optional implementation manner of this embodiment, when a multi-channel light source with channels greater than or equal to 5 is used, since the number of channels of the light source is large, a plurality of narrow-band spectrum light sources may be used, that is, a continuous spectrum may be formed, as shown in fig. 5, a schematic diagram of setting a half-width of a spectrum of the multi-channel light source provided in this embodiment is shown, where a horizontal axis of a coordinate system represents a wavelength (in nm), a vertical axis represents a relative spectral intensity (in a.u.), and the half-width of the spectrum of each channel light source in fig. 5 may be set to be less than 30 nm. The scheme can ensure that the color gamut range which can be reached by the display screen can be optimal while ensuring the optimal effect of simulating natural light spectrum or real object reflection spectrum.
Fig. 6 is a schematic diagram illustrating a spectrum half-width setting of another multi-channel light source provided in this embodiment, where a horizontal axis of a coordinate system represents a wavelength (in nm), and a vertical axis represents a relative spectral intensity (in a.u.), and in other embodiments, a combination manner of a plurality of narrow-band spectral light sources, a plurality of medium-band spectral light sources, and a plurality of wide-band spectral light sources may also be adopted, for example, p channel spectra are narrow-band spectral light sources, corresponding to a spectrum half-width smaller than 30nm, m channel spectra are medium-band spectral light sources, corresponding to a spectrum half-width greater than or equal to 30nm and less than or equal to 50nm, n channel spectra are wide-band spectral light sources, a spectrum half-width is greater than 50nm, and values of p, m, and n are all greater. The scheme can ensure that the effect of simulating a natural light spectrum or a real object reflection spectrum is good while ensuring that the display screen has a large color gamut range.
And 103, determining a target spectrum curve according to the chromatic value of the preset real object under the reference light and the corresponding relation.
Specifically, the present embodiment obtains a chromaticity value of the real object under a given reference light source, and then determines a spectral curve of the display screen corresponding to the chromaticity value. When the number of the light source channels is 3, the emission spectrums and the chromatic values of the display screen correspond to each other one by one, and when the number of the light source channels is more than 3, metamerism exists, namely a certain given chromatic value of the display screen corresponds to a plurality of emission spectrums.
In an optional implementation manner of this embodiment, when the total number of channels of the backlight is greater than 3, determining the target spectral curve according to the chromaticity value and the corresponding relationship of the preset real object under the reference light includes: determining a plurality of spectrum curves of metamerism according to the chromatic value and the corresponding relation of a preset real object under the reference light; a target spectral curve is determined from the plurality of spectral curves.
Specifically, in this embodiment, if the number of light source channels is greater than 3, a display screen emission spectrum uniquely corresponding to a chromaticity value may be determined from a plurality of spectrum curves corresponding to the chromaticity value according to a determined control strategy.
And 104, controlling the display screen to display the image containing the real object according to the target spectrum curve.
Specifically, in the present embodiment, the real objects in the image to be displayed may include self-luminous objects or non-self-luminous objects (i.e., reflective luminous objects). In the embodiment, the half width of the spectrum of the light source is adjusted to control the display screen to output the spectrum with the continuity larger than the preset continuity threshold, so that when a real natural object is displayed, the chromaticity is as close as possible, and the spectrum emitted by the backlight source is also close to the spectrum corresponding to a self-luminous object or a reflective luminous object in the nature.
In an optional implementation manner of this embodiment, after determining the target spectral curve according to the chromaticity value and the corresponding relationship of the preset real object under the reference light, the method further includes: inquiring a presenting spectrum of the real object under the irradiation of the reference light from a preset spectrum database; comparing the similarity of the target spectrum curve with the presented spectrum of the real object under the reference light to obtain a similarity factor; and when the similarity factor does not meet the requirement of the target function, correcting the target spectrum curve. Correspondingly, the step of controlling the display screen to display the image containing the real object according to the target spectrum curve comprises the following steps: and controlling a display screen to display the image containing the real object according to the corrected target spectral curve.
Specifically, in this embodiment, a spectrum curve of the display screen corresponding to a chromaticity value of the real object under a certain given reference light source is compared with a radiation spectrum of the self-luminous object under the given reference light source or a reflection spectrum of the non-self-luminous object under the given reference light source to determine consistency of the determined target spectrum curve and a presentation spectrum of the real object, and when the consistency does not meet a display requirement, the target spectrum curve is corrected according to a target function, and then the display screen is controlled to display by using the corrected spectrum curve.
It should be noted that the spectrum database in this embodiment may include the spectrum of real natural light tested in the existing research and the spectrum of reflection corresponding to the real object, for example, the spectrum database includes a POINTER real object database. Of course, the spectrum database may also contain various real object spectrum reflection data measured by the user and reflection spectrum data presented under different light irradiation.
In another optional implementation manner of this embodiment, after controlling the display screen to display the image containing the real object according to the target spectrum curve, the method further includes: acquiring display evaluation indexes of a display screen in a preset integration time period; when the display evaluation index does not meet the requirement of the target function, correcting the target spectrum curve according to the target function; and controlling a display screen to display the image containing the real object according to the corrected target spectral curve.
Specifically, in practical application, the display evaluation index includes at least one of display screen efficiency, health effect and blue light damage effect, and the correction mode may adopt GAMMA correction. In this embodiment, when the display light source module displays corresponding information according to the chromaticity and spectrum information, the display screen efficiency, the health effect, and the blue light damage effect are evaluated for content displayed in a time period of the display screen, and the light source module spectrum matching and optimization can be performed according to a set objective function, wherein the display screen efficiency evaluation includes light effect evaluation and energy loss evaluation, the health effect includes Melatonin effect evaluation and is evaluated based on a Melatonin curve, and the health effect is evaluated by performing overall quantitative evaluation on spectra emitted by each pixel point of the display screen and integrating corresponding time periods to obtain content health effect evaluation displayed in a time period. The present embodiment can set the objective function according to one of the display screen efficiency, the health effect, and the blue light damage effect, so as to perform a better optimization strategy, and make the display chromaticity and the spectrum better reach a certain set target.
According to the display method for simulating the spectrum presentation of the real object provided by the embodiment of the invention, the spectrum half-width of at least part of channel light sources of the backlight source of the display screen is adjusted to be larger than the preset half-width threshold value from the initial value, so that the display screen is controlled to output the spectrum with the continuity larger than the preset continuity threshold value, and the spectrum closer to the natural display effect of the real object can be simulated from the spectrum angle. By implementing the invention, the display effect of the display screen is closer to the real display effect of natural objects, and the visual health of the user can be ensured to a greater extent.
Second embodiment:
in order to solve the technical problems in the related art that the actual spectrum when displaying an object actually existing in nature is a discontinuous spectrum, the display effect is deviated from the natural effect presented by the real object, and the visual health may be potentially damaged, the present embodiment shows a display device simulating the spectrum presentation of the real object, and referring to fig. 7 specifically, the display device of the present embodiment includes:
the adjusting module 701 is used for adjusting the spectral half-width of at least part of channel light sources of the backlight source of the display screen from an initial value to be larger than a preset half-width threshold value; wherein the total number of channels of the backlight source is greater than or equal to 3;
an obtaining module 702, configured to obtain a corresponding relationship between each chromaticity value and a spectrum curve when the adjusted display screen outputs a preset reference light; the continuity of the spectrum curve is greater than a preset continuity threshold value;
the determining module 703 is configured to determine a target spectral curve according to a chromatic value of a preset real object under the reference light and a corresponding relationship;
and the control module 704 is used for controlling the display screen to display the image containing the real object according to the target spectrum curve.
In some implementations of this embodiment, the adjusting module 701 is further configured to: after the spectrum half width of at least part of channel light sources of a backlight source of a display screen is adjusted to be larger than a preset half width threshold value from an initial value, when the number of channels of the backlight source in a working state is smaller than the total number of channels, selecting a target channel from the rest channels; and adjusting the target channel from the non-working state to the working state.
In some embodiments of this embodiment, when the total number of channels of the backlight is greater than 3, the determining module 703 is specifically configured to: determining a plurality of spectrum curves of metamerism according to the chromatic value and the corresponding relation of a preset real object under the reference light; a target spectral curve is determined from the plurality of spectral curves.
In some embodiments of this embodiment, the display device for simulating a spectral representation of a real object further comprises: the first correction module is used for inquiring a presented spectrum of the real object under the reference light from the preset spectrum database after determining a target spectrum curve according to the chromatic value and the corresponding relation of the preset real object under the reference light; comparing the similarity of the target spectrum curve with the presented spectrum of the real object under the reference light to obtain a similarity factor; when the similarity factor does not meet the requirement of the target function, correcting the target spectrum curve; wherein, the spectrum of the real object under the reference light comprises: a radiation spectrum exhibited by the self-luminous object under the reference light or a reflection spectrum exhibited by the non-self-luminous object under the reference light. Correspondingly, the control module 704 is specifically configured to: and controlling a display screen to display the image containing the real object according to the corrected target spectral curve.
In some embodiments of this embodiment, the display device for simulating a spectral representation of a real object further comprises: the second correction module is used for acquiring display evaluation indexes of the display screen in a preset integration period after controlling the display screen to display the image containing the real object according to the target spectrum curve; when the display evaluation index does not meet the requirement of the target function, correcting the target spectrum curve according to the target function; the display evaluation index comprises at least one of display screen efficiency, health effect and blue light damage effect. Correspondingly, the control module 704 is further configured to: and controlling a display screen to display the image containing the real object according to the corrected target spectral curve.
It should be noted that, the display method for simulating the spectrum of the real object in the foregoing embodiment can be implemented based on the display device for simulating the spectrum of the real object provided in this embodiment, and it can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working process of the display device for simulating the spectrum of the real object described in this embodiment may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
By adopting the display device for simulating the spectrum presentation of the real object provided by the embodiment, the spectrum half-width of at least part of channel light sources of the backlight source of the display screen is adjusted to be larger than the preset half-width threshold value from the initial value, so as to control the display screen to output the spectrum with the continuity larger than the preset continuity threshold value, and thus the spectrum closer to the natural display effect of the real object can be simulated from the spectrum angle. By implementing the invention, the display effect of the display screen is closer to the real display effect of natural objects, and the visual health of the user can be ensured to a greater extent.
The third embodiment:
the present embodiment provides an electronic device, as shown in fig. 8, which includes a processor 801, a memory 802, and a communication bus 803, wherein: the communication bus 803 is used for realizing connection communication between the processor 801 and the memory 802; the processor 801 is configured to execute one or more computer programs stored in the memory 802 to implement at least one step of the display method for simulating the spectrum representation of the real object in the first embodiment.
The present embodiments also provide a computer-readable storage medium including volatile or non-volatile, removable or non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, computer program modules or other data. Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other Memory technology, CD-ROM (Compact disk Read-Only Memory), Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
The computer-readable storage medium in this embodiment may be used for storing one or more computer programs, and the stored one or more computer programs may be executed by a processor to implement at least one step of the method in the first embodiment.
The present embodiment also provides a computer program, which can be distributed on a computer readable medium and executed by a computing device to implement at least one step of the method in the first embodiment; and in some cases at least one of the steps shown or described may be performed in an order different than that described in the embodiments above.
The present embodiments also provide a computer program product comprising a computer readable means on which a computer program as shown above is stored. The computer readable means in this embodiment may include a computer readable storage medium as shown above.
It will be apparent to those skilled in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software (which may be implemented in computer program code executable by a computing device), firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.
In addition, communication media typically embodies computer readable instructions, data structures, computer program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to one of ordinary skill in the art. Thus, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a more detailed description of embodiments of the present invention, and the present invention is not to be considered limited to such descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A display method for simulating a spectral representation of a real object, comprising:
adjusting the spectrum half width of at least part of channel light sources of a backlight source of the display screen from an initial value to be larger than a preset half width threshold value; wherein the total number of channels of the backlight source is greater than or equal to 3;
acquiring the corresponding relation between various chrominance values and a spectral curve when the adjusted display screen outputs preset reference light; wherein the continuity of the spectral curve is greater than a preset continuity threshold;
determining a target spectrum curve according to the chromatic value of a preset real object under the reference light and the corresponding relation;
and controlling the display screen to display the image containing the real object according to the target spectrum curve.
2. The display method for simulating spectral representation of a real object according to claim 1, wherein after adjusting the spectral half-width of at least part of the channel light sources of the backlight of the display screen from the initial value to be greater than the preset half-width threshold, the method further comprises:
when the number of channels of the backlight source in the working state is smaller than the total number of the channels, selecting a target channel from the rest channels;
and adjusting the target channel from a non-working state to the working state.
3. The display method for simulating spectral representation of a real object according to claim 1, wherein when the total number of channels of the backlight source is greater than 3, the determining a target spectral curve according to the chromaticity value of the preset real object under the reference light and the corresponding relationship comprises:
determining a plurality of spectrum curves of metamerism according to the chromatic value of a preset real object under the reference light and the corresponding relation;
a target spectral curve is determined from the plurality of spectral curves.
4. The method according to any one of claims 1 to 3, wherein after determining the target spectral curve according to the chromaticity value of the preset real object under the reference light and the corresponding relationship, the method further comprises:
inquiring the presenting spectrum of the real object under the reference light from a preset spectrum database; wherein a presentation spectrum of the real object under the reference light includes: a radiation spectrum exhibited by a self-luminous object under the reference light or a reflection spectrum exhibited by a non-self-luminous object under the reference light;
comparing the similarity of the target spectrum curve with the spectrum of the real object under the reference light to obtain a similarity factor;
when the similarity factor does not meet the requirement of a target function, correcting the target spectrum curve;
the controlling the display screen to display the image containing the real object according to the target spectrum curve comprises:
and controlling the display screen to display the image containing the real object according to the corrected target spectrum curve.
5. A display method for simulating a spectral representation of a real object as claimed in any one of claims 1 to 3, wherein after controlling the display screen to display an image containing the real object according to the target spectral profile, further comprising:
acquiring a display evaluation index of the display screen in a preset integration period; the display evaluation index comprises at least one of display screen efficiency, health effect and blue light damage effect;
when the display evaluation index does not meet the requirement of a target function, correcting the target spectrum curve according to the target function;
and controlling the display screen to display the image containing the real object according to the corrected target spectrum curve.
6. A display device for simulating the spectral representation of a real object, comprising:
the adjusting module is used for adjusting the spectral half-width of at least part of channel light sources of the backlight source of the display screen from an initial value to be larger than a preset half-width threshold value; wherein the total number of channels of the backlight source is greater than or equal to 3;
the acquisition module is used for acquiring the corresponding relation between various chrominance values and a spectral curve when the adjusted display screen outputs preset reference light; wherein the continuity of the spectral curve is greater than a preset continuity threshold;
the determining module is used for determining a target spectrum curve according to the chromatic value of a preset real object under the reference light and the corresponding relation;
and the control module is used for controlling the display screen to display the image containing the real object according to the target spectrum curve.
7. The display apparatus for simulating a spectral representation of a real object according to claim 6, wherein the adjustment module is further configured to:
after the spectrum half width of at least part of channel light sources of a backlight source of a display screen is adjusted to be larger than a preset half width threshold value from an initial value, when the number of channels of the backlight source in a working state is smaller than the total number of the channels, selecting a target channel from the rest channels; and adjusting the target channel from a non-working state to the working state.
8. The display apparatus for simulating spectral presentations of real objects of claim 6 wherein when the total number of channels of the backlight is greater than 3, the determining module is specifically configured to:
determining a plurality of spectrum curves of metamerism according to the chromatic value of a preset real object under the reference light and the corresponding relation; a target spectral curve is determined from the plurality of spectral curves.
9. A display device for simulating the spectral representation of a real object according to any of claims 6 to 8, further comprising:
the first correction module is used for inquiring a presented spectrum of the real object under the reference light from a preset spectrum database after determining a target spectrum curve according to a chromatic value of a preset real object under the reference light and the corresponding relation; comparing the similarity of the target spectrum curve with the spectrum of the real object under the reference light to obtain a similarity factor; when the similarity factor does not meet the requirement of a target function, correcting the target spectrum curve; wherein a presentation spectrum of the real object under the reference light includes: a radiation spectrum exhibited by a self-luminous object under the reference light or a reflection spectrum exhibited by a non-self-luminous object under the reference light;
the control module is specifically configured to:
and controlling the display screen to display the image containing the real object according to the corrected target spectrum curve.
10. A display device for simulating the spectral representation of a real object according to any of claims 6 to 8, further comprising:
the second correction module is used for acquiring a display evaluation index of the display screen in a preset integration period after controlling the display screen to display the image containing the real object according to the target spectrum curve; when the display evaluation index does not meet the requirement of a target function, correcting the target spectrum curve according to the target function; the display evaluation index comprises at least one of display screen efficiency, health effect and blue light damage effect;
the control module is further configured to:
and controlling the display screen to display the image containing the real object according to the corrected target spectrum curve.
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| CN202010122980.8A CN111210780B (en) | 2020-02-27 | 2020-02-27 | Display method and device for simulating spectrum presentation of real object |
| PCT/CN2020/084900 WO2020216113A1 (en) | 2019-04-25 | 2020-04-15 | Displaying systems and methods |
| US17/594,621 US20220199045A1 (en) | 2019-04-25 | 2020-04-15 | Displaying systems and methods |
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