Manufacturing method and device of light-emitting pattern and light-emitting product

Abstract

The invention relates to the technical field of quantum dot printing, and discloses a manufacturing method and device of a light-emitting pattern and a light-emitting product. The method comprises the steps that first color parameters of different color plate positions in a quantum dot color plate and printing parameters corresponding to the color plate positions are obtained; acquiring second color parameters of different pattern positions in a target pattern to be printed; for the second color parameter corresponding to each pattern position, determining a first color parameter matched with the second color parameter in the first color parameters of each color plate position; target printing equipment is controlled to use the first quantum dot pigment, printing is conducted on each pattern position according to the printing parameters corresponding to the determined first color parameters, and a quantum dot light-emitting pattern corresponding to the target pattern is obtained; a quantum dot light-emitting pattern consistent with a digital pattern in color can be printed, and the color rendition accuracy of the light-emitting pattern is improved.

Description

Technical Field

[0001] This disclosure relates to the field of quantum dot printing technology, and more particularly to a method, apparatus and luminescent product for manufacturing luminescent patterns. Background Technology

[0002] With the rapid development of display and printing technologies, the demand for high-performance, multifunctional luminescent materials is increasing. Quantum dots, as an emerging nanomaterial, have become a research hotspot in the display and lighting fields due to their excellent optical properties (such as high luminous efficiency, narrowband emission, and broadband absorption) and tunable emission wavelengths. Applying quantum dots to practical products requires the creation of intricate patterns. For example, when applying quantum dots to displays, they need to be arranged into pixels, which necessitates high-precision patterning techniques to create the quantum dot luminescent patterns.

[0003] Currently, most methods for manufacturing luminescent patterns rely on mask evaporation or micro / nano fabrication processes. While these methods can achieve high-precision patterns, they suffer from the following problems:

[0004] 1. High process complexity: It requires multiple processing steps and has expensive equipment costs;

[0005] 2. Low efficiency: Slow processing speed makes it difficult to meet the needs of large-scale production;

[0006] 3. Insufficient flexibility: Limited ability to manufacture complex patterns and multi-color luminous patterns;

[0007] 4. Significant environmental impact: Traditional methods may generate a large amount of waste materials, increasing the environmental burden.

[0008] Direct-to-garment printing is a digital, non-contact material deposition technology that uses computer-controlled printing equipment to quickly create complex patterns.

[0009] However, when using traditional direct-to-garment printing, there is a certain difference (or color difference) between the color of the digital pattern displayed on the computer and the color of the printed quantum dot luminescent pattern, resulting in poor manufacturing effect of the quantum dot luminescent pattern. Summary of the Invention

[0010] In view of this, the present disclosure proposes a method, apparatus and storage medium for manufacturing luminescent patterns; it can determine the printing parameters of the same color in the target pattern to be printed according to the printing parameters corresponding to the actual colors in the real environment, thereby printing a quantum dot luminescent pattern with the same color as the digital pattern, and improving the color reproduction accuracy of the quantum dot luminescent pattern.

[0011] According to one aspect of this disclosure, a method for manufacturing a luminescent pattern is provided, the method comprising:

[0012] The method involves obtaining first color parameters for different positions in a quantum dot color palette, as well as printing parameters corresponding to each position. The quantum dot color palette is obtained by printing a reference color palette using a first quantum dot pigment according to preset printing parameters. The first color parameters indicate the actual color of the corresponding color palette position in a real-world environment. The first quantum dot pigment includes at least four colors of quantum dot pigment.

[0013] Obtain second color parameters for different pattern positions in the target pattern to be printed; wherein, the second color parameters are used to indicate the display color of the corresponding pattern position in the electronic drawing;

[0014] For each pattern position corresponding to the second color parameter, among the first color parameters of each color swatch position, determine the first color parameter that matches the second color parameter;

[0015] The target printing device is controlled to use the first quantum dot pigment and print at each pattern position according to the printing parameters corresponding to the determined first color parameters, so as to obtain the quantum dot luminescent pattern corresponding to the target pattern.

[0016] In one possible implementation, obtaining the second color parameters at different pattern positions in the target pattern to be printed includes:

[0017] Obtain the second color parameter for each pixel position in the target pattern;

[0018] or,

[0019] The target pattern is divided into blocks to obtain the block position of each pattern block; a second color parameter corresponding to each block position is determined; wherein, each pattern block includes at least one pixel position, and the similarity between the third color parameters of different pixel positions within the same pattern block is within a preset similarity range, the third color parameter is used to indicate the display color of the corresponding pattern position in the electronic pattern, and the parameter type of the third color parameter is the same as or different from that of the second color parameter.

[0020] In one possible implementation, dividing the target pattern into blocks to obtain the block position of each pattern block includes:

[0021] Based on the third color parameter at each pixel location and a preset image segmentation algorithm, the target pattern is divided into blocks to obtain the block position of each pattern block.

[0022] In one possible implementation, determining the second color parameter corresponding to each block position includes:

[0023] For each block location, obtain the second color parameter for each pixel position within that block location;

[0024] The second color parameter of the block position is determined based on the second color parameter of each pixel position in the block position.

[0025] In one possible implementation, determining a first color parameter that matches the second color parameter among the first color parameters for each color swatch position, for each pattern position corresponding to the second color parameter, includes:

[0026] Determine the similarity between a first color parameter at each color swatch location and a second color parameter at the pattern location;

[0027] The first color parameter with the highest similarity is determined as the first color parameter that matches the second color parameter.

[0028] In one possible implementation, determining the similarity between the first color parameter of each color swatch position and the second color parameter of the pattern position further includes:

[0029] Determine whether a first color parameter exists that is identical to the second color parameter;

[0030] If it exists, then the first color parameter that is the same as the second color parameter is determined as the first color parameter with the highest similarity;

[0031] If it does not exist, the similarity is determined based on the Euclidean distance between the first color parameter and the second color parameter.

[0032] In one possible implementation, before obtaining the first color parameters at different positions in the quantum dot color palette, the method further includes:

[0033] Determine whether the first quantum dot pigment of the target printing device has been replaced;

[0034] When the first quantum dot pigment of the target printing device is replaced, the target printing device is controlled to use the second quantum dot pigment to print the reference color plate according to the printing parameters to obtain the quantum dot color plate, and the step of obtaining the first color parameters of different color plate positions in the quantum dot color plate is triggered again.

[0035] In one possible implementation, obtaining the first color parameter at different positions in the quantum dot color palette includes:

[0036] The color measurement device is controlled to acquire the first color parameters at different positions of the color sample in a preset acquisition posture.

[0037] In one possible implementation, the method further includes:

[0038] Get the range of print parameters;

[0039] The range of printing parameters is divided according to a preset interval value to obtain different printing parameters within the range of printing parameters;

[0040] Color blocks with different positions on the color swatch are set based on different printing parameters, and each color block constitutes the reference color swatch to obtain the quantum dot color swatch.

[0041] According to another aspect of this disclosure, an apparatus for manufacturing luminescent patterns is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the above-described method when executing the instructions stored in the memory.

[0042] According to another aspect of this disclosure, a light-emitting product is provided, the light-emitting product comprising a quantum dot light-emitting pattern determined by the above method, and incident light.

[0043] In one possible implementation, the quantum dot luminescent pattern is disposed on a preset geometric surface, and the incident light illuminates the preset geometric surface at a preset angle and covers the quantum dot luminescent pattern.

[0044] In this embodiment, by acquiring first color parameters for different positions in a quantum dot color palette and printing parameters corresponding to each position; acquiring second color parameters for different positions in the target pattern to be printed; for each second color parameter corresponding to a position, determining a first color parameter that matches the second color parameter among the first color parameters for each position; controlling the target printing device to use first quantum dot pigment and printing each position according to the determined printing parameters corresponding to the first color parameter, thus obtaining a quantum dot luminescent pattern corresponding to the target pattern; the printing parameters for the same color in the target pattern to be printed can be determined according to the actual color in the real environment, thereby printing a quantum dot luminescent pattern with the same color as the digital pattern, which can solve the problem of inconsistency between the color of the digital pattern displayed on the computer and the color of the printed quantum dot luminescent pattern, and improve the color reproduction accuracy of the luminescent pattern.

[0045] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0046] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this disclosure together with the specification and serve to explain the principles of this disclosure.

[0047] Figure 1 A flowchart illustrating a method for manufacturing a light-emitting pattern according to an embodiment of the present disclosure is provided.

[0048] Figure 2 A schematic diagram of a reference color plate according to an embodiment of the present disclosure is shown;

[0049] Figure 3 An embodiment of the present disclosure is shown. Figure 2 A schematic diagram of a quantum dot color plate obtained by printing from the reference color plate shown;

[0050] Figure 4 A flowchart illustrating the process of obtaining a first color parameter according to an embodiment of the present disclosure is shown;

[0051] Figure 5 A schematic diagram showing color matching between pixel positions in a target pattern and color plate positions in a quantum dot color plate according to an embodiment of the present disclosure;

[0052] Figure 6 A block diagram showing an apparatus for manufacturing a light-emitting pattern according to an embodiment of the present disclosure;

[0053] Figure 7 A block diagram of an apparatus for manufacturing a light-emitting pattern according to another embodiment of the present disclosure is shown. Detailed Implementation

[0054] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0055] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0056] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0057] Figure 1A flowchart illustrating a method for manufacturing a light-emitting pattern according to an embodiment of the present disclosure is provided. This embodiment describes the method in an electronic device with processing capabilities, which can be a direct-to-garment printer, a user terminal or server communicatively connected to the direct-to-garment printer, and includes, but is not limited to, mobile phones, tablets, computers, etc. This embodiment does not limit the device type of the user terminal or electronic device. Figure 1 As shown, the method includes:

[0058] Step 101: Obtain the first color parameters of different positions in the quantum dot color palette, and the printing parameters corresponding to each position.

[0059] Among them, the quantum dot color plate is obtained by the target printing device using the first quantum dot pigment to print the reference color plate according to the preset printing parameters.

[0060] The reference color swatch is used to print the quantum dot color swatch by the target printing device to determine the printing parameters of the target pattern to be printed.

[0061] For example, the reference color swatch is a pre-designed pattern in an electronic device. In other words, the reference color swatch is a digital pattern that has not yet been printed but can be displayed in the electronic device. The reference color swatch includes multiple color blocks, each of which is positioned as a color swatch position, with different color swatch positions corresponding to different printing parameters. Optionally, the shape of the color block can be rectangular, circular, or triangular, etc. This embodiment does not limit the implementation method of the color block. The color swatch position can be the area occupied by the corresponding color block in the reference color swatch, such as the area occupied by a rectangular block in the reference color swatch; or, the color swatch position can also be the position of a point in the color block in the reference color swatch, such as the position of the center point of the color block in the reference color swatch, or the position of a vertex of the color block in the reference color swatch. This embodiment does not limit the implementation method of the color swatch position.

[0062] At this point, the design process of the reference color swatch includes: obtaining the range of printing parameters; dividing the range of printing parameters according to a preset interval value to obtain different printing parameters within the range of printing parameters; setting color blocks at different positions of the color swatch based on different printing parameters, and each color block constitutes a reference color swatch to obtain a quantum dot color swatch.

[0063] Printing parameters refer to the parameters in the target printing device that determine the color of the quantum dot color palette. For example, printing parameters might be CMYK values. CMYK is a four-color printing model, representing cyan, magenta, yellow, and key / black. In CMYK mode, inks from the C, M, and Y channels are mixed in different proportions, and then combined with ink from the black channel to produce various colors. CMYK values ​​represent the percentage of each channel's ink in the mixed color. For example, C=50%, M=50%, Y=50%, K=50% means that the percentages of ink from the cyan, magenta, yellow, and black channels are all 50% in the mixed color.

[0064] In other embodiments, the printing parameters may also be CMYKW values ​​in CMYK+W mode (i.e., adding white to the CMYK four-color mode) or CMYKOG values ​​in CMYKOG mode (i.e., adding orange and green to the CMYK four-color mode). This embodiment does not limit the implementation method of the printing parameters.

[0065] The print parameter range refers to the range of values ​​formed by the minimum and maximum values ​​of the print parameter. Taking the print parameter as a CMYK value as an example, the minimum value of the CMYK value is 0 and the maximum value is 100%, then the print parameter range is [0, 100].

[0066] Taking a printing parameter that includes n channel values ​​(n is an integer greater than 1) as an example, the printing parameter range is divided according to a preset interval value to obtain different printing parameters within the printing parameter range, including:

[0067] The printing parameter range for each channel is divided according to a preset interval value to obtain multiple channel values ​​for each channel; the channel values ​​of each channel are combined in different ways to obtain the printing parameters corresponding to each combination.

[0068] Optionally, the preset interval values ​​corresponding to different channels may be the same or different; the preset interval value is a fixed value pre-stored in the electronic device, or a value received by the electronic device based on the human-computer interaction interface, or a value sent by other devices received by the electronic device. This embodiment does not limit the method of obtaining and setting the preset interval value.

[0069] Taking CMYK values ​​as the printing parameter example, n=4, and the printing parameter range for each channel is [0, 100]. If the preset interval is 20, dividing the printing parameter range for each channel into 20 values ​​results in channel values ​​of 0, 20, 40, 60, 80, and 100 (i.e., 100 / 20+1=6 channel values). Combining these channel values ​​in different ways yields 6×6×6×6 possible combinations of printing parameters, providing a reference color palette. Figure 2 As shown in the figure. Therefore, for different preset interval values, the total number of printing parameters is [(100 / preset interval value) + 1]. 4 kind.

[0070] Since quantum dot color swatches are printed from reference color swatches, the positions of the color swatches on the quantum dot color swatches correspond one-to-one with the positions on the reference color swatches. Therefore, the same color swatch position on both the quantum dot and reference color swatches corresponds to the same printing parameters. For example: [The text abruptly ends here, likely due to an incomplete sentence or missing information.] Figure 2 The quantum dot color swatches obtained by printing from the reference color swatches shown are as follows: Figure 3 As shown, for the same color plate position 100 on both the reference color plate and the quantum dot color plate, this color plate position 100 corresponds to the same printing parameters. For example: Figure 2 If the printing parameters for position 100 on the middle color swatch are CMYK values ​​(0, 100, 100, 0), then... Figure 3 The position 100 in the middle color swatch also corresponds to the CMYK value (0, 100, 100, 0).

[0071] The target printing device incorporates a first quantum dot pigment. The first quantum dot pigment refers to the quantum dot pigment currently used in the target printing device. The quantum dot pigment can utilize components found in existing technologies, and this disclosure does not specifically limit the composition of the quantum dot pigment. In one example, the quantum dot pigment is composed of quantum dots with fluorescent properties, a monofunctional active diluent, oligomers, a photoinitiator, and an adhesion promoter mixed in a certain proportion. The specific proportion is not limited and can be determined based on the actual application.

[0072] The number of channels in the first quantum dot pigment is greater than or equal to the number of channels in the printing parameters, and the quantum dot pigments in different channels have different colors. For example, if the number of channels in the printing parameters is at least four, then the first quantum dot pigment includes at least four colors. For instance, if the number of channels in the printing parameters is four, and the number of channels in the first quantum dot pigment of the target printing device is also four, then the colors of the four quantum dot pigment channels are blue, green, orange, and red, respectively. In actual implementation, the colors of the four quantum dot pigment channels can also be other colors; this embodiment does not limit the color setting method for the quantum dot pigments in different channels.

[0073] After a quantum dot color chart is obtained by printing with the first quantum dot pigment, the first color parameter of the quantum dot color chart is used to indicate the actual color of the corresponding color chart position in the real environment. The actual color refers to the emission color of the quantum dot, not its color in the unexcited state.

[0074] In this context, "real" corresponds to "virtual" in the context of the real environment. The digital pattern is a pattern operating within a virtual environment, while the quantum dot color palette is a physical object existing in the real environment. The actual color in the real environment refers to the color that the quantum dot color palette can display when illuminated by a specific light source in a real environment. The specific light source refers to a light source capable of making the quantum dot color palette display its color in the real environment. Optionally, the specific light source includes, but is not limited to, a 365nm ultraviolet light source. This embodiment does not limit the implementation method of the specific light source.

[0075] The first color parameter at a certain position on a quantum dot color chart may differ from the color parameter (which is of the same type as the first color parameter) at the corresponding position on a reference color chart. For example: Figure 2 The reference color swatch displayed on the electronic device shows position 100 as black, however, Figure 3 The color plate position 100 on the quantum dot color chart is orange, which is different from the other two.

[0076] For example, obtaining the first color parameters at different positions in a quantum dot color chart includes: controlling a color measurement device to collect the first color parameters at different positions in a preset acquisition posture.

[0077] The color measurement device is used to collect color information of the quantum dot color sample in a real environment. Optionally, the parameter type of the color parameter obtained by the color measurement device may be the same as or different from the parameter type of the first color parameter. The different cases are explained below.

[0078] 1. When the parameter type of the color parameter obtained by the color measuring device is the same as the parameter type of the first color parameter, the color measuring device determines the type based on the first color parameter.

[0079] For example, if the first color parameter is an RGB color value, that is, each color is divided into three channels: red (R), green (G), and blue (B); then the color measurement device can be an RGB color sensor. The RGB color sensor can detect the intensity of red, green, and blue light reflected or transmitted by an object, and determine the color of the object according to the ratio of these three colors of light, thus obtaining the first color parameter for each color plate position.

[0080] For example: if the first color parameter is a LAB color value, that is, each color is divided into brightness (L... ) and two chroma channels (green to red a) From blue to yellow (b) The color measurement device can be a CIELab color sensor. This CIELab color sensor can emit light to each color position of the quantum dot color chart and collect the reflected light at that position. Based on the intensity and wavelength information of the reflected light, the LAB color value is determined, and the first color parameter of each color position is obtained.

[0081] 2. When the parameter type of the color parameter obtained by the color measuring device is different from the parameter type of the first color parameter, after the color measuring device acquires the color parameter, the electronic device converts the color parameter into the parameter type of the first color parameter to obtain the first color parameter.

[0082] For example, if the first color parameter is a standard RGB color value (i.e., the color values ​​of the R channel, G channel and B channel are all in the range of [0, 255]), and the color measurement device (such as an RGB color sensor using a 10-bit ADC converter) collects a non-standard RGB color value with a value range of [0, 1023], then it is necessary to convert the non-standard RGB color value to a standard RGB color value.

[0083] For example, converting non-standard RGB color values ​​to standard RGB color values ​​includes: obtaining the correspondence between the output value of a color measuring device and standard RGB color values; and converting the output value to standard RGB color values ​​according to the correspondence.

[0084] The correspondence between the various channels can be expressed by the following formula:

[0085] RGB_value = (sensor_output / 1023) 255;

[0086] Here, RGB_value represents the standard RGB color value, and sensor_output represents the output value of the color measurement device.

[0087] For example, if the output value of the color measurement device is (R: 650, G: 200, B: 100), then after conversion according to the above correspondence, the standard RGB color values ​​of each channel can be obtained as R_value = (650 / 1023). 255≈162, G_value=(200 / 1023) 255≈50, B_value=(100 / 1023) 255≈25. That is, the standard RGB value corresponding to this output value is (162, 50, 25).

[0088] In other embodiments, the first color parameter can be implemented as other types, such as the HSV value in the HSV (Hue, Saturation, Value) color space, and the color measuring device can also be other types. This embodiment does not limit the implementation of the first color parameter and the color measuring device.

[0089] The preset acquisition posture enables the color measurement device to acquire color information from the quantum dot color sample as accurately as possible. For example, the preset acquisition posture is one in which the acquisition plane of the color measurement device is parallel to the quantum dot color sample.

[0090] In one example, controlling the color measuring device to collect the first color parameters at different color swatch positions includes: controlling the color measuring device to start from a preset color swatch position, traverse each color swatch position along a preset trajectory, and obtain the first color parameter at each color swatch position.

[0091] Optionally, the preset trajectory can be a bow shape, a back shape, etc. This embodiment does not limit the implementation method of the preset trajectory.

[0092] For example: Reference Figure 3 The preset color swatch position is located at the top left corner. The color measuring device traverses each color swatch position along the preset bow-shaped trajectory to obtain the first color parameter for each color swatch position.

[0093] Optionally, in order to ensure the accuracy of the first color parameter, the color measuring device can be calibrated before collecting the first color parameter at different color plate positions, thereby improving the color reproduction accuracy of the printed target pattern.

[0094] In one possible implementation, calibrating the color measuring device includes: controlling the color measuring device to acquire color parameters of a preset color reference panel; and determining calibration parameters for the color measuring device based on the color parameters and the standard color parameters corresponding to the color reference panel.

[0095] The color reference board can be a white reference board (i.e., white calibration of the color measurement equipment). Accordingly, based on the color parameter and the standard color parameter corresponding to the color reference board, the calibration parameters of the color measurement equipment are determined, including: dividing the standard color parameter of each channel by the color parameter acquired by the color measurement equipment for that channel to obtain the calibration coefficient corresponding to that channel.

[0096] The correction factor can be expressed by the following formula:

[0097] K R =(255 / R_white);

[0098] K G = (255 / G_white);

[0099] K B = (255 / B_white);

[0100] Where R_white is the color parameter of the red channel obtained by the color measuring device when acquiring data from the white reference plate; G_white is the color parameter of the green channel obtained by the color measuring device when acquiring data from the white reference plate; B_white is the color parameter of the blue channel obtained by the color measuring device when acquiring data from the white reference plate; 255 is the standard color parameter for the red, green, and blue channels; K R K is the correction factor for the red channel. G K is the correction factor for the green channel. B This is the correction factor for the blue channel.

[0101] Accordingly, after the color measuring device collects the color parameters at different color plate positions, it is necessary to correct the color parameters based on the correction coefficient to obtain the corrected color parameters, thereby obtaining the accurate first color parameters.

[0102] The corrected color parameters can be expressed by the following formula:

[0103] R_corrected = K R ×R_raw;

[0104] G_corrected = K G ×G_raw;

[0105] B_corrected = K B ×B_raw;

[0106] Wherein, R_raw represents the color parameters of the red channel obtained by the color measuring device when acquiring the color sample position; G_raw represents the color parameters of the green channel obtained by the color measuring device when acquiring the color sample position; B_raw represents the color parameters of the blue channel obtained by the color measuring device when acquiring the color sample position; R_corrected represents the corrected color parameters of the red channel; G_corrected represents the corrected color parameters of the green channel; and B_raw represents the corrected color parameters of the blue channel.

[0107] Alternatively, the color reference board can be a black reference board (i.e., black calibration of the color measurement device). Accordingly, based on the color parameter and the standard color parameter corresponding to the color reference board, the calibration parameters of the color measurement device are determined, including: subtracting the standard color parameter of the channel from the color parameter acquired by the color measurement device for each channel to obtain the color offset corresponding to that channel.

[0108] The color offset can be expressed by the following formula:

[0109] R_offset = R_black - 0;

[0110] G_offset = G_black -0;

[0111] B_offset = B_black - 0;

[0112] Where 0 represents the standard color parameters for the red, green, and blue channels; R_black represents the color parameters for the red channel obtained by the color measuring device when acquiring data from the black reference plate; G_black represents the color parameters for the green channel obtained by the color measuring device when acquiring data from the black reference plate; B_black represents the color parameters for the blue channel obtained by the color measuring device when acquiring data from the black reference plate; R_offset represents the color offset for the red channel, G_offset represents the color offset for the green channel, and B_offset represents the color offset for the blue channel.

[0113] Accordingly, after the color measuring device collects the color parameters at different color plate positions, it is necessary to correct the color parameters based on the color offset to obtain the corrected color parameters, thereby obtaining the accurate first color parameters.

[0114] The corrected color parameters can be expressed by the following formula:

[0115] R_corrected= R_raw- R_offset;

[0116] G_corrected = G_raw-G_offset;

[0117] B_corrected = B_raw- B_offset;

[0118] Wherein, R_raw represents the color parameters of the red channel obtained by the color measuring device when acquiring the color sample position; G_raw represents the color parameters of the green channel obtained by the color measuring device when acquiring the color sample position; B_raw represents the color parameters of the blue channel obtained by the color measuring device when acquiring the color sample position; R_corrected represents the corrected color parameters of the red channel; G_corrected represents the corrected color parameters of the green channel; and B_raw represents the corrected color parameters of the blue channel.

[0119] In other embodiments, when performing black calibration on the color measuring device, a black reference plate may not be placed. Instead, the color measuring device is controlled to collect color parameters in a completely dark environment (or a light-free environment) to obtain the color parameters collected by the color measuring device, thereby calculating the color offset. This embodiment does not limit the calibration method of the color measuring device.

[0120] Optionally, to ensure the accuracy of the first color parameter, before collecting the first color parameter at different color plate positions, it can be determined whether the collection environment of the quantum dot color plate meets the preset environmental requirements. If the preset environmental requirements are met, the color measurement device is controlled to collect the first color parameter at different color plate positions. This minimizes the impact of the collection environment on the first color parameter, thus ensuring its accuracy. If the preset environmental requirements are not met, the electronic device can output an environmental calibration prompt to suggest changing the collection environment of the quantum dot color plate.

[0121] Optionally, the environmental calibration prompts can be audio prompts, and / or light prompts, and / or text prompts, etc. This embodiment does not limit the implementation method of the environmental calibration prompts.

[0122] In one possible implementation, determining whether the acquisition environment of the quantum dot color plate meets the preset environmental requirements includes: acquiring an environmental image of the quantum dot color plate, performing image recognition on the environmental image to obtain environmental information of the quantum dot color plate; and determining that the quantum dot color plate meets the preset environmental requirements when the environmental information indicates that the quantum dot color plate is placed on a flat surface and / or the ambient light of the quantum dot color plate is uniformly irradiated on the quantum dot color plate.

[0123] Optionally, the image recognition method includes, but is not limited to: using an edge detection method to extract the edges of the quantum dot color palette, performing a straight line fitting on the edges to obtain a fitting error; if the fitting error is greater than an error threshold, the quantum dot color palette is determined to be uneven; if the fitting error is less than or equal to the error threshold, the quantum dot color palette is determined to be flat. Alternatively, the environmental image is converted into a grayscale image, and the brightness of different parts of the grayscale image is detected; if the brightness variance of each part exceeds a preset brightness threshold, the ambient light of the quantum dot color palette is determined to be uneven; if the brightness variance of each part is less than or equal to the preset brightness threshold, the ambient light of the quantum dot color palette is determined to be uniform. Alternatively, a pre-trained deep learning model is used to detect flatness and illumination uniformity. This embodiment does not limit the implementation method of the image recognition method.

[0124] In other embodiments, the electronic device may also receive the environment determination result through a human-computer interaction control, or receive the environment determination result sent by other devices. The environment determination result is used to indicate whether the collection environment of the quantum dot color plate meets the preset environment requirements. This embodiment does not limit the way the electronic device determines whether the collection environment meets the preset environment requirements.

[0125] In addition, in this embodiment, the preset environmental requirements include: the quantum dot color plate is placed on a flat surface, and / or the ambient light of the quantum dot color plate is uniformly irradiated on the quantum dot color plate. In other embodiments, the preset environmental requirements may also include other contents. This embodiment does not limit the implementation of the preset environmental requirements.

[0126] To better understand the acquisition process of the first color parameter provided in this embodiment, the following example illustrates the acquisition process using a scenario where a color measuring device undergoes white calibration, the parameter type of the color parameter obtained by the color measuring device differs from the parameter type of the first color parameter, and the color parameter obtained by the color measuring device is a non-standard RGB color value of [0, 1023] while the first color parameter is a standard RGB color value of [0, 255]. (Reference) Figure 4 The process of obtaining the first color parameter includes the following steps:

[0127] Step 1011: Control the color measuring device to collect the color parameters of the white reference plate, and determine the correction coefficient of the color measuring device based on the color parameters and the standard color parameters corresponding to the color reference plate.

[0128] Step 1012: Determine whether the acquisition environment of the quantum dot color palette meets the preset environment requirements; if yes, proceed to step 1013; if no, output an environment calibration prompt to prompt you to change the acquisition environment of the quantum dot color palette, and after the acquisition environment is changed, proceed to step 1012 again.

[0129] Optionally, step 1012 can be executed before step 1011, or after step 1011, or synchronously with step 1011. This embodiment does not limit the execution order between steps 1011 and 1012.

[0130] Step 1013: Control the acquisition plane of the color measurement device to be parallel to the quantum dot color plate, and control the color measurement device to move to the first color plate position of the quantum dot color plate;

[0131] Step 1014: Control the color measurement device to collect the color parameters of the color swatch position and obtain the non-standard RGB color value (or original intensity value) of the color swatch position.

[0132] Step 1015: Correct the non-standard RGB color values ​​using correction coefficients to obtain the corrected color parameters;

[0133] Step 1016: Using the correspondence between non-standard RGB color values ​​and standard RGB color values, convert the corrected color parameters into standard RGB color values ​​to obtain the first color parameter;

[0134] Step 1017: Record the first color parameter for each color swatch position;

[0135] Optionally, the first color parameter for each color swatch location can be stored in a database and / or displayed via a display device connected to an electronic device.

[0136] Step 1018: Determine whether all color positions of the quantum dot color chart have been traversed; if yes, the process ends; if no, control the color measurement device to move to the next color position and execute step 1014 again.

[0137] For detailed descriptions of steps 1011-1018, please refer to the above embodiments, which will not be repeated here.

[0138] After obtaining the first color parameter corresponding to each color swatch position, since the printing parameters corresponding to each color swatch position are known, the electronic device can store the correspondence between the color swatch position, printing parameters, and first color parameter.

[0139] Step 102: Obtain the second color parameters for different pattern positions in the target pattern to be printed.

[0140] Optionally, step 102 may be executed before step 101, after step 101, or synchronously with step 101. This embodiment does not limit the execution order between steps 101 and 102.

[0141] The second color parameter indicates the display color of the corresponding pattern position in the electronic drawing. The parameter type of the second color parameter is the same as that of the first color parameter. For example, if the parameter type of the first color parameter is a standard RGB value, then the parameter type of the second color parameter is also a standard RGB value.

[0142] In one example, an image processing library is installed in the electronic device. Accordingly, obtaining the second color parameters of different pattern positions in the target pattern includes: calling the image processing library to load the target pattern; obtaining the pattern attributes of the target pattern through the image processing library, which include pattern height, pattern width and number of channels; and obtaining the second color parameters of each pixel position in the target pattern based on the pattern attributes.

[0143] The image processing library is used to process and analyze digital patterns. It typically provides functions such as pattern reading, display, editing, conversion, filtering, and feature extraction. Image processing libraries include, but are not limited to, open-source computer vision libraries (OpenCV) or Python image processing libraries (PIL). This embodiment does not limit the implementation method of the image processing library.

[0144] Optionally, if the storage format of the target pattern is not supported by the image processing library, it needs to be converted to a format supported by the image processing library before loading the target pattern. For example, if the image processing library supports the RGB format, but the storage format of the target pattern is not RGB, then the target pattern needs to be converted to the RGB format.

[0145] After loading the target pattern into memory, the image processing library can obtain the pattern attributes by reading the return values ​​of the pattern attributes. For example, OpenCV obtains the pattern height, pattern width, and number of channels by reading the return value of the shape attribute; PIL obtains the pattern height and pattern width by reading the return value of the size attribute, and the number of channels by reading the return value of the mode attribute.

[0146] The process of obtaining the second color parameter for each pixel position in the target pattern based on pattern attributes includes: creating a first index variable x and a second index variable y, where x and y together indicate a pixel position; determining the traversal range of x and y based on the pattern height and pattern width, where the traversal range of x is [0, width-1] and the traversal range of y is [0, height-1], where width represents the pattern width and height represents the pattern height; and using a nested loop structure, iterating through each pixel position to match the second color parameter with the number of channels in the pattern attributes. For example, if the second color parameter is an RGB value, and the number of channels in the pattern attributes is 3, then the RGB values ​​of all three channels are obtained; if the number of channels in the pattern attributes is a single channel, then the RGB value of one channel is obtained.

[0147] The nested loop structure can be implemented with x as the outer loop and y as the inner loop; or it can be implemented with y as the outer loop and x as the inner loop. This embodiment does not limit the specific way of looping through the second color parameter of each pixel position.

[0148] Optionally, if the parameter type of the color parameter read from the image processing library is different from the parameter type of the second color parameter, the electronic device can convert the color parameter read from the image processing library into the second color parameter based on a pre-stored conversion relationship.

[0149] Optionally, the pattern position can be a single pixel position or a block position composed of multiple pixel positions. The different cases will be explained below.

[0150] 1. The pattern position is a single pixel position. As mentioned above, by calling an image processing library to iterate through each pixel position, the second color parameter for each pixel position can be obtained.

[0151] 2. The pattern position is a block position composed of multiple pixel positions. At this time, the second color parameters of different pattern positions in the target pattern to be printed are obtained, including: dividing the target pattern into blocks to obtain the block position of each pattern block; and determining the second color parameter corresponding to each block position.

[0152] Each pattern block includes at least one pixel position, and the similarity between the third color parameters of different pixel positions within the same pattern block is within a preset similarity range.

[0153] The third color parameter indicates the display color of the corresponding pattern position in the electronic pattern. Specifically, the third color parameter refers to the color parameter of a single pixel position within the pattern block, while the second color parameter is the color parameter of the entire pattern block. The second color parameter can be determined based on the third color parameter. The parameter type of the third color parameter may be the same as or different from that of the second color parameter. For example, if both the second and third color parameters are standard RGB values, their parameter types are the same. Another example is that the second color parameter is a standard RGB value, while the third color parameter is a Lab value in the Lab color space. This embodiment does not limit the implementation method of the third color parameter.

[0154] Segmentation refers to dividing a target pattern into multiple sub-regions. In one example, the target pattern is segmented to obtain the block position of each pattern block, including: segmenting the target pattern based on the third color parameter of each pixel position and a preset image segmentation algorithm to obtain the block position of each pattern block.

[0155] Image segmentation algorithms include, but are not limited to, the following:

[0156] The first method is threshold-based image segmentation. Threshold-based image segmentation includes: converting the third color parameter of the target pattern into grayscale values ​​to obtain a grayscale histogram of the target pattern, which indicates the distribution of grayscale values ​​at each pixel location in the target pattern; determining at least one segmentation threshold based on the grayscale histogram; and comparing the grayscale value at each pixel location in the target pattern with the segmentation threshold to classify the pixel location into different threshold regions, thereby obtaining segmented pattern blocks.

[0157] Optionally, the electronic device may use the maximum inter-class variance method to determine the segmentation threshold, or determine the segmentation threshold based on pattern statistics, or receive the segmentation threshold manually selected by the user, etc. This embodiment does not limit the selection method of the segmentation threshold.

[0158] Different segmentation thresholds divide the grayscale value range into multiple threshold regions. By matching the grayscale value of a pixel location with the segmentation threshold, the pixel location can be assigned to the corresponding threshold region. For example, if the grayscale value range is [0, 255] and the segmentation threshold is 100, then the segmentation threshold divides the grayscale value range into two threshold regions: pixels with grayscale values ​​less than 100 are assigned to the threshold region corresponding to [0, 100); pixels with grayscale values ​​greater than or equal to 100 are assigned to the threshold region corresponding to (100, 255).

[0159] The second method is cluster-based image segmentation. Taking K-means clustering as an example, cluster-based image segmentation includes: selecting K third color parameters as initial cluster centers; for each pixel location, determining the distance between the third color parameter of that pixel location and the initial cluster center, and assigning that pixel location to the nearest initial cluster center to form K clusters; determining new cluster centers for each cluster; repeating the steps of determining the distance between the third color parameter of that pixel location and the initial cluster center, assigning that pixel location to the nearest initial cluster center, and forming K clusters, and so on, until the cluster centers no longer change or the preset number of iterations is reached, to obtain the pattern patch corresponding to each cluster.

[0160] Optionally, the distance between the third color parameter and the initial cluster center can be determined by Euclidean distance or Manhattan distance. This embodiment does not limit the method of determining the distance between the third color parameter and the initial cluster center.

[0161] Optionally, determining new cluster centers for each cluster includes: determining the average value of a third color parameter for each pixel location in each cluster.

[0162] Taking C-means clustering as an example, image segmentation based on clustering includes: initializing a C×N membership matrix U; where N is the total number of pixels in the target pattern; C is the preset number of clusters; and the elements u in U... ij Let u represent the membership degree of the j-th pixel belonging to the i-th cluster, and satisfy 0 ≤ u. ij ≤1, and for each pixel, the sum of the membership degrees of that pixel to all cluster centers i (i from 1 to C) is equal to 1; based on the current membership matrix U, determine the weighted average of the third color parameters of all pixels in each cluster, and obtain the cluster center c of that cluster. iHere, the weight is the membership degree of a pixel to that cluster; the distance between the third color parameter of each pixel and each cluster center is calculated, and the membership degree is updated according to the distance and the preset weighting index m; it is determined whether the change in the membership degree matrix is ​​less than the preset stopping iteration threshold; if so, the pattern block corresponding to each cluster is obtained; if not, the weighted average of the third color parameters of all pixels in each cluster is determined again according to the current membership degree matrix U, and the cluster center c of that cluster is obtained. i The steps and subsequent steps. Where i and j are both integers greater than 1.

[0163] Optionally, the distance between the third color parameter of each pixel and each cluster center can be determined by Euclidean distance or Manhattan distance. This embodiment does not limit the method of determining the distance between the third color parameter of each pixel and each cluster center.

[0164] In this embodiment, image segmentation based on K-means clustering and C-means clustering is used as an example. In other embodiments, image segmentation can also be performed based on other clustering methods, which will not be listed here.

[0165] The third method is image segmentation based on region growing. Image segmentation based on region growing includes: obtaining seed points for region growing, which indicate the starting pixel position of the segmented region; for each untraversed seed point, determining whether the similarity between the third color parameter of each neighboring pixel and the third color parameter of the seed point is less than or equal to a preset similarity threshold; if yes, then classifying the neighboring pixel and the seed point into the same pattern patch, and using the neighboring pixel as a new seed point; if no, then determining that the neighboring pixel and the seed point do not belong to the same pattern patch, and repeating the steps of determining whether the similarity between the third color parameter of each neighboring pixel and the third color parameter of the seed point is less than or equal to the preset similarity threshold for each untraversed seed point, and subsequent steps, until all seed points have been traversed, resulting in the segmented pattern patch.

[0166] Optionally, the similarity between the third color parameter of each neighboring pixel and the third color parameter of the seed point can be determined by Euclidean distance or Manhattan distance. This embodiment does not limit the method of determining the similarity.

[0167] In actual implementation, other image segmentation algorithms can also be used, such as image segmentation based on deep learning networks, which divides the parts of the target pattern with similar colors into the same pattern block. This embodiment does not limit the implementation method of the image segmentation algorithm.

[0168] In one example, determining the second color parameter corresponding to each block location includes: for each block location, obtaining the second color parameter of each pixel position in the block location; and determining the second color parameter of the block location based on the second color parameters of each pixel position in the block location.

[0169] Since the second color parameter of each pixel position in the target pattern has been obtained in the above embodiments, the second color parameter of each pixel position included in each block position can be read after the block position of each pattern block is determined.

[0170] Optionally, determining the second color parameter of the block location based on the second color parameters of each pixel location in the block location includes: determining the average value of the second color parameters of each pixel location in the block location as the second color parameter of the block location; or, determining the median of the second color parameters of each pixel location in the block location as the second color parameter of the block location; or, determining the mode of the second color parameters of each pixel location in the block location as the second color parameter of the block location. This embodiment does not limit the method of determining the second color parameter of the block location.

[0171] Optionally, the electronic device can determine the pattern position based on printing requirements. For example, if the printing requirements indicate that color accuracy takes precedence over computational efficiency, the pattern position is determined to be a pixel position; if the printing requirements indicate that computational efficiency takes precedence over color accuracy, the pattern position is determined to be a block position of a pattern block.

[0172] The printing request can be obtained based on the human-computer interaction control or sent by other devices. This embodiment does not limit the method of obtaining the printing request.

[0173] Optionally, to reduce the number of colors to be compared in the target pattern, after obtaining the second color parameters of different pattern positions in the target pattern to be printed, the second color parameters of different pattern positions can be merged. For example, merging the second color parameters of different pattern positions includes: merging the second color parameters of different pattern positions based on a color quantization algorithm.

[0174] Color quantization algorithms include, but are not limited to, one of the following:

[0175] 1. Median Cutting Algorithm. The median cutting algorithm merges the second color parameters of different pattern positions, including: determining one channel of the second color parameters for each pattern position as a sorting channel; sorting the second color parameters of each pattern position according to the color value corresponding to the sorting channel; dividing the sorted second color parameters into two parameter regions from the median position of the color values ​​corresponding to the sorting channel; for each parameter region, repeating the step of dividing the sorted second color parameters into two parameter regions from the median position of the color values ​​corresponding to the sorting channel until the number of parameter regions reaches a preset quantization number; and determining the merged color parameters corresponding to each parameter region based on the second color parameters corresponding to that parameter region, thus obtaining the merged color parameters corresponding to different pattern positions.

[0176] Optionally, the average of the second color parameters corresponding to each parameter region can be determined as the merged color parameter; or, the median of the second color parameters corresponding to each parameter region can be determined as the merged color parameter. This embodiment does not limit the method of determining the merged color parameter corresponding to each parameter region.

[0177] 2. K-means Clustering Algorithm. The K-means clustering algorithm merges the second color parameters of different pattern positions. This includes: randomly selecting K second color parameters from each pattern position as initial cluster centers; calculating the distance between the second color parameter at each pattern position and the cluster center, and assigning the second color parameter at that position to the nearest cluster center; updating the cluster centers based on the second color parameters of each pattern position corresponding to each cluster center; repeating the steps of calculating the distance between the second color parameter at each pattern position and the cluster center, and assigning the second color parameter at that position to the nearest cluster center, until the cluster centers no longer change; and determining the merged color parameter corresponding to each cluster center based on the second color parameters of each pattern position corresponding to each cluster center. Here, K is a positive integer.

[0178] Optionally, the average of the second color parameters corresponding to each cluster center can be used as the merged color parameter; or, the median of the second color parameters corresponding to each cluster center can be used as the merged color parameter. This embodiment does not limit the method of determining the merged color parameter corresponding to each cluster center.

[0179] In other implementations, the color quantization algorithm can be other algorithms, such as the octree quantization algorithm, etc., which will not be listed here in this embodiment.

[0180] Step 103: For the second color parameter corresponding to each pattern position, determine the first color parameter that matches the second color parameter from the first color parameters of each color swatch position.

[0181] In one example, for the second color parameter corresponding to each pattern position, among the first color parameters at each color swatch position, a first color parameter that matches the second color parameter is determined, including:

[0182] Determine the similarity between the first color parameter at each color swatch position and the second color parameter at the pattern position; determine the first color parameter with the highest similarity as the first color parameter that matches the second color parameter.

[0183] For example, determining the similarity between a first color parameter at each color swatch location and a second color parameter at a pattern location includes: determining the Euclidean distance between the first color parameter and the second color parameter to obtain the similarity.

[0184] Taking the case where both the first and second color parameters are RGB values ​​as an example, the Euclidean distance between the first and second color parameters can be expressed by the following formula:

[0185]

[0186] Where (R1, G1, B1) are the RGB values ​​of the pattern position (i.e., the second color parameter); (R2, G2, B2) are the RGB values ​​of the color swatch position (i.e., the first color parameter); color_distance is the Euclidean distance.

[0187] In other embodiments, the similarity between the first color parameter at each color swatch position and the second color parameter at the pattern position can also be determined based on the Manhattan distance. This embodiment does not limit the method of determining the similarity.

[0188] Optionally, since there may be color swatch positions where the first color parameter and the second color parameter are the same, it is not necessary to calculate the similarity to determine that the first color parameter of the color swatch position matches the second color parameter of the pattern position. Therefore, to save computational resources, determining the similarity between the first color parameter of each color swatch position and the second color parameter of the pattern position further includes:

[0189] Determine if there exists a first color parameter that is identical to the second color parameter; if so, determine the first color parameter that is identical to the second color parameter as the first color parameter with the highest similarity; if not, determine the similarity based on the Euclidean distance between the first color parameter and the second color parameter.

[0190] At this point, there is no need to calculate similarity when the first color parameter and the second color parameter are the same, which can save computing resources and improve the efficiency of determining the first color parameter that matches the second color parameter.

[0191] Optionally, if at least two first color parameters match the second color parameter, then a first color parameter can be randomly selected as the first color parameter that matches the second color parameter.

[0192] Optionally, if the second color parameter corresponding to each pattern position is merged in step 102, then in step 103, the second color parameter corresponding to each pattern position is the merged color parameter of that pattern position.

[0193] Step 104: Control the target printing device to use the first quantum dot pigment and print each pattern position according to the printing parameters corresponding to the determined first color parameters to obtain the quantum dot luminescent pattern corresponding to the target pattern.

[0194] Since step 101 can obtain the correspondence between each color plate position, printing parameters and first color parameters, step 103 can determine the first color parameter that matches the second color parameter of each pattern position. At this time, the printing parameters corresponding to the first color parameter can be determined according to the correspondence, and the correspondence between the printing parameters and the pattern position and second color parameters is established. Then, each pattern position is printed according to the correspondence to obtain the quantum dot light-emitting pattern corresponding to the target pattern.

[0195] refer to Figure 5 Assuming the target pattern's position is a single pixel's position, and the first color parameter of the quantum dot color chart is the color it appears to display under 365nm ultraviolet excitation light in a real environment, through color comparison in steps 102 and 103, the first color parameter matching the second color parameter of pattern position 501 is determined to be the first color parameter at color chart position 502. The CMYK value of the printing parameter corresponding to this first color parameter is then determined as the CMYK value of pattern position 501. Thus, the printing parameters for each pattern position 501 are obtained. After printing the target pattern according to these printing parameters, the actual color of pattern position 501 in the real environment is the actual color of color chart position 502. At this point, the color of the digital pattern displayed on the electronic device is consistent with the color seen by the user under 365nm ultraviolet excitation light in the real environment, eliminating color difference.

[0196] Figure 5 The example given is that the target pattern differs from the reference color swatch. In actual implementation, the target pattern can also be the reference color swatch, for example: Figure 2Using the reference color swatch shown, a quantum dot luminescent pattern with the same color as the reference color swatch can be printed.

[0197] In summary, the method for manufacturing luminescent patterns provided in this embodiment obtains first color parameters for different positions in a quantum dot color palette and printing parameters corresponding to each position; obtains second color parameters for different positions in the target pattern to be printed; for each second color parameter corresponding to a position, determines a first color parameter that matches the second color parameter among the first color parameters for each position; controls the target printing device to use first quantum dot pigments and print each position according to the determined printing parameters corresponding to the first color parameters to obtain a quantum dot luminescent pattern corresponding to the target pattern; the printing parameters for the same color in the target pattern to be printed can be determined according to the actual color in the real environment, thereby printing a quantum dot luminescent pattern with the same color as the digital pattern, solving the problem of inconsistency between the color of the digital pattern displayed on the computer and the color of the printed quantum dot luminescent pattern, and improving the color reproduction accuracy of the luminescent pattern.

[0198] In addition, by dividing the target pattern into blocks and determining the second color parameter of each pattern block, the color can be compared with the first color parameter of each color swatch position, which can reduce the number of color comparisons and save computing resources.

[0199] In addition, during the color comparison process, it is first determined whether there is a first color parameter that is the same as the second color parameter. If it does not exist, the similarity between the first color parameter and the second color parameter is calculated. If it exists, there is no need to calculate the similarity between the first color parameter and the second color parameter. The same first color parameter is directly determined as the matching first color parameter. At this time, there is no need to calculate the similarity between the second color parameter and the first color parameter at each pattern position, which can further save computing resources.

[0200] In one possible implementation, before obtaining the first color parameters of different positions in the quantum dot color palette, the method further includes: determining whether the first quantum dot pigment of the target printing device has been replaced; if the first quantum dot pigment of the target printing device has been replaced, controlling the target printing device to use the second quantum dot pigment to print the reference color palette according to the printing parameters to obtain the quantum dot color palette, and triggering the step of obtaining the first color parameters of different positions in the quantum dot color palette again.

[0201] The second quantum dot pigment refers to the quantum dot pigment used after the target printing equipment is replaced. Similar to the first quantum dot pigment, the second quantum dot pigment also includes quantum dot pigments in at least four colors.

[0202] Since changing the quantum dot pigment in the target printing device may affect the first color parameter of the printed quantum dot color plate, in order to improve the accuracy of quantum dot direct inkjet printing, it is necessary to reprint the quantum dot color plate and re-collect the first color parameter when changing the quantum dot pigment in the target printing device to determine the printing parameters corresponding to the target pattern.

[0203] Optionally, determining whether the first quantum dot pigment of the target printing device has been replaced includes: determining whether the quantum dot pigment has been replaced upon receiving a replacement instruction from the target printing device; or, determining whether the quantum dot pigment has been replaced upon receiving a replacement instruction input through a human-machine interface. This embodiment does not limit the method of determining whether the quantum dot pigment has been replaced.

[0204] Optionally, when reprinting the reference color swatch according to the printing parameters, the printing parameters of the reference color swatch can be reset, such as setting a new preset interval value.

[0205] In this embodiment, by replacing the first quantum dot pigment in the target printing device with the second quantum dot pigment, reprinting the reference color plate according to the printing parameters, and re-collecting the first color parameters, the accuracy of color comparison can be guaranteed, thereby ensuring the accuracy of determining the printing parameters corresponding to the target pattern.

[0206] Figure 6 A block diagram of an apparatus for manufacturing a light-emitting pattern according to an embodiment of the present disclosure is shown. Figure 6 As shown, the device includes the following modules: a first parameter acquisition module 610, a second parameter acquisition module 620, a color matching module 630, and a printing module 640.

[0207] The first parameter acquisition module 610 is used to acquire the first color parameters of different positions in the quantum dot color palette and the printing parameters corresponding to each position; wherein, the quantum dot color palette is obtained by the target printing device using the first quantum dot pigment to print the reference color palette according to the preset printing parameters; the first color parameters are used to indicate the actual color of the corresponding color palette position in the real environment; the first quantum dot pigment includes at least 4 colors of quantum dot pigment;

[0208] The second parameter acquisition module 620 is used to acquire second color parameters for different pattern positions in the target pattern to be printed; wherein, the second color parameters are used to indicate the display color of the corresponding pattern position in the electronic drawing;

[0209] The color matching module 630 is used to determine, for each pattern position corresponding to the second color parameter, a first color parameter that matches the second color parameter among the first color parameters of each color swatch position;

[0210] The direct-injection printing module 640 is used to control the first quantum dot pigment used by the target printing device, and to print each of the pattern positions according to the printing parameters corresponding to the determined first color parameters, so as to obtain the quantum dot luminescent pattern corresponding to the target pattern.

[0211] Optionally, the second parameter acquisition module 620 is used for:

[0212] Obtain the second color parameter for each pixel position in the target pattern;

[0213] or,

[0214] The target pattern is divided into blocks to obtain the block position of each pattern block; a second color parameter corresponding to each block position is determined; wherein, each pattern block includes at least one pixel position, and the similarity between the third color parameters of different pixel positions within the same pattern block is within a preset similarity range, the third color parameter is used to indicate the display color of the corresponding pattern position in the electronic pattern, and the parameter type of the third color parameter is the same as or different from that of the second color parameter.

[0215] Optionally, dividing the target pattern into blocks to obtain the block position of each pattern block includes:

[0216] Based on the third color parameter at each pixel location and a preset image segmentation algorithm, the target pattern is divided into blocks to obtain the block position of each pattern block.

[0217] Optionally, determining the second color parameter corresponding to each block position includes:

[0218] For each block location, obtain the second color parameter for each pixel position within that block location;

[0219] The second color parameter of the block position is determined based on the second color parameter of each pixel position in the block position.

[0220] Optionally, the color matching module 630 is used for:

[0221] Determine the similarity between a first color parameter at each color swatch location and a second color parameter at the pattern location;

[0222] The first color parameter with the highest similarity is determined as the first color parameter that matches the second color parameter.

[0223] Optionally, determining the similarity between the first color parameter of each color swatch position and the second color parameter of the pattern position includes:

[0224] The similarity is obtained by determining the Euclidean distance between the first color parameter and the second color parameter.

[0225] Optionally, determining the similarity between the first color parameter at each color swatch position and the second color parameter at the pattern position further includes:

[0226] Determine whether a first color parameter exists that is identical to the second color parameter;

[0227] If it exists, then the first color parameter that is the same as the second color parameter is determined as the first color parameter with the highest similarity;

[0228] If it does not exist, the similarity is determined based on the Euclidean distance between the first color parameter and the second color parameter.

[0229] Optionally, before obtaining the first color parameters of different color positions in the quantum dot color palette, the locking device further includes: a pigment replacement determination module;

[0230] The pigment replacement determination module is used to determine whether the first quantum dot pigment of the target printing device has been replaced;

[0231] The direct-injection printing module 640 is further configured to, when the first quantum dot pigment of the target printing device is replaced, control the target printing device to use a second quantum dot pigment to print the reference color plate according to the printing parameters to obtain the quantum dot color plate, and trigger the execution of the step of obtaining the first color parameters of different color plate positions in the quantum dot color plate again.

[0232] Optionally, the first parameter acquisition module 610 is used for:

[0233] The color measurement device is controlled to acquire the first color parameters at different positions of the color sample in a preset acquisition posture.

[0234] Optionally, the device further includes: a range acquisition module, a range division module, and a parameter setting module.

[0235] The range acquisition module is used to obtain the range of printing parameters;

[0236] The range division module is used to divide the range of printing parameters according to a preset interval value to obtain different printing parameters within the range of printing parameters;

[0237] The parameter setting module is used to set color blocks at different positions on the color swatch based on different printing parameters. Each color block constitutes the reference color swatch to obtain the quantum dot color swatch.

[0238] In some embodiments, the functions or modules of the apparatus provided in this disclosure can be used to perform the methods described in the above method embodiments. The specific implementation can be referred to the description of the above method embodiments, and for the sake of brevity, it will not be repeated here.

[0239] This disclosure also proposes a computer-readable storage medium storing computer program instructions that, when executed by a processor, implement the above-described method. The computer-readable storage medium can be volatile or non-volatile.

[0240] This disclosure also proposes an electronic device, including: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to implement the above method when executing the instructions stored in the memory.

[0241] This disclosure also provides a computer program product, including computer-readable code, or a non-volatile computer-readable storage medium carrying computer-readable code, wherein when the computer-readable code is run in a processor of an electronic device, the processor in the electronic device performs the above-described method. Figure 7 This is a block diagram illustrating an apparatus 1900 for manufacturing a light-emitting pattern according to an exemplary embodiment. For example, apparatus 1900 may be provided as a server or terminal device. (Refer to...) Figure 7 The apparatus 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by the processing component 1922. The application programs stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1922 is configured to execute instructions to perform the methods described above.

[0242] Device 1900 may also include a power supply component 1926 configured to perform power management of device 1900, a wired or wireless network interface 1950 configured to connect device 1900 to a network, and an input / output interface 1958 (I / O interface). Device 1900 can operate on an operating system, such as Windows Server, stored in memory 1932. TM macOS X TM Unix TM Linux TM FreeBSD TM Or similar.

[0243] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions that can be executed by a processing component 1922 of the device 1900 to perform the above-described method.

[0244] This disclosure also provides a light-emitting product comprising a quantum dot light-emitting pattern determined by the above method, and incident light.

[0245] The quantum dot luminescent pattern can emit light when excited by incident light. The specific form of the incident light can be referred to in the implementation methods in related technologies, and this disclosure does not impose any specific limitations on it.

[0246] In one possible implementation, a quantum dot luminescent pattern is set on a preset geometric surface, and incident light illuminates the preset geometric surface at a preset angle, covering the quantum dot luminescent pattern.

[0247] The specific form of the preset geometric surface can be flexibly set according to actual usage requirements. For example, it can be a plane or a curved surface, and its shape can be a rectangle, a circle, or any irregular shape. This disclosure does not specifically limit this. The specific value of the preset angle can also be flexibly set according to actual usage requirements. For example, the preset angle can be set to 0 degrees, that is, the incident light is set on the side of the preset geometric surface; the preset angle can also be set to 90 degrees, that is, the incident light is perpendicular to the preset geometric surface; the preset angle can also be set to 45 degrees, that is, the incident light is obliquely incident on the incident geometric surface, etc. This disclosure does not specifically limit this. Preferably, the preset angle is 0 degrees, and the incident light is set on the side of the preset geometric surface.

[0248] The light-emitting product of this disclosure includes a quantum dot light-emitting pattern determined by the above method and incident light. The quantum dot light-emitting pattern can emit light under the excitation of the incident light, which can achieve consistency with the pattern to be printed on the electronic pattern, so that the light-emitting product has high accuracy and stability of color expression and improves the visual effect of the light-emitting product.

[0249] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A method for manufacturing a luminescent pattern, characterized in that, The method includes: The method involves obtaining first color parameters for different positions in a quantum dot color palette, as well as printing parameters corresponding to each position. The quantum dot color palette is obtained by printing a reference color palette using a first quantum dot pigment according to preset printing parameters. The first color parameters indicate the actual color of the corresponding color palette position in a real-world environment. The first quantum dot pigment includes at least four colors of quantum dot pigment. Obtain second color parameters for different pattern positions in the target pattern to be printed; wherein, the second color parameters are used to indicate the display color of the corresponding pattern position in the electronic drawing; For each pattern position corresponding to the second color parameter, among the first color parameters of each color swatch position, determine the first color parameter that matches the second color parameter; The target printing device is controlled to use the first quantum dot pigment and print at each pattern position according to the printing parameters corresponding to the determined first color parameters, so as to obtain the quantum dot luminescent pattern corresponding to the target pattern.

2. The method according to claim 1, characterized in that, The step of obtaining the second color parameters for different pattern positions in the target pattern to be printed includes: Obtain the second color parameter for each pixel position in the target pattern; or, The target pattern is divided into blocks to obtain the block position of each pattern block; a second color parameter corresponding to each block position is determined; wherein, each pattern block includes at least one pixel position, and the similarity between the third color parameters of different pixel positions within the same pattern block is within a preset similarity range, the third color parameter is used to indicate the display color of the corresponding pattern position in the electronic pattern, and the parameter type of the third color parameter is the same as or different from that of the second color parameter.

3. The method according to claim 2, characterized in that, The step of dividing the target pattern into blocks to obtain the block position of each pattern block includes: Based on the third color parameter at each pixel location and a preset image segmentation algorithm, the target pattern is divided into blocks to obtain the block position of each pattern block.

4. The method according to claim 2, characterized in that, Determining the second color parameter corresponding to each block position includes: For each block location, obtain the second color parameter for each pixel position within that block location; The second color parameter of the block position is determined based on the second color parameter of each pixel position in the block position.

5. The method according to claim 1, characterized in that, For each pattern position corresponding to the second color parameter, determining the first color parameter that matches the second color parameter from the first color parameters of each color swatch position includes: Determine the similarity between a first color parameter at each color swatch location and a second color parameter at the pattern location; The first color parameter with the highest similarity is determined as the first color parameter that matches the second color parameter.

6. The method according to claim 5, characterized in that, The determination of the similarity between the first color parameter of each color swatch position and the second color parameter of the pattern position includes: Determine whether a first color parameter exists that is identical to the second color parameter; If it exists, then the first color parameter that is the same as the second color parameter is determined as the first color parameter with the highest similarity; If it does not exist, the similarity is determined based on the Euclidean distance between the first color parameter and the second color parameter.

7. The method according to claim 1, characterized in that, Before obtaining the first color parameters at different positions in the quantum dot color chart, the method further includes: Determine whether the first quantum dot pigment of the target printing device has been replaced; When the first quantum dot pigment of the target printing device is replaced, the target printing device is controlled to use the second quantum dot pigment to print the reference color plate according to the printing parameters to obtain the quantum dot color plate, and the step of obtaining the first color parameters of different color plate positions in the quantum dot color plate is triggered again.

8. The method according to claim 1, characterized in that, The process of obtaining the first color parameter at different positions in the quantum dot color chart includes: The color measurement device is controlled to acquire the first color parameters at different positions of the color sample in a preset acquisition posture.

9. The method according to any one of claims 1 to 8, characterized in that, The method further includes: Get the range of printing parameters; The range of printing parameters is divided according to a preset interval value to obtain different printing parameters within the range of printing parameters; Color blocks with different positions on the color swatch are set based on different printing parameters, and each color block constitutes the reference color swatch to obtain the quantum dot color swatch.

10. An apparatus for manufacturing luminescent patterns, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to implement the method of any one of claims 1 to 9 when executing instructions stored in the memory.

11. A luminescent product, characterized in that, The luminescent product includes a quantum dot luminescent pattern determined by the method according to any one of claims 1 to 9, and incident light.

12. The luminescent product according to claim 11, characterized in that, The quantum dot luminescent pattern is set on a preset geometric surface, and the incident light illuminates the preset geometric surface at a preset angle and covers the quantum dot luminescent pattern.

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