An image display control method and system for a special-shaped LED display screen

Abstract

The application discloses a kind of special-shaped LED display screen image display control method and system, it is related to display control technical field, including, the image data of special-shaped LED display screen is acquired, and the RGB chrominance of image data is parsed;RGB chrominance is converted into quantum dot energy level regulation and control parameter, and the control signal of quantum dot energy level transition is calculated;Drive quantum dot coating to carry out directional electron transition, generate electron distribution state;Based on electron distribution state calculation optical compensation parameter, utilize ionization path matrix modulation special-shaped LED display screen ionization inert gas, form plasma cloud;The electron distribution state and plasma cloud are integrated into fusion light signal, the optical path difference of special-shaped LED display screen is dynamically corrected by light field interference processor, and the zero-distortion image of fusion light signal is displayed in special-shaped LED display screen.The application realizes special-shaped LED display screen high-precision zero-distortion image display by photoelectric fusion regulation and control technology.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display control, in particular to a kind of image display control method and system of special-shaped LED display screen. BACKGROUND

[0002] With the rapid development of LED display technology, special-shaped LED display screen is widely concerned in advertising, stage design and building integration, so the image display control of special-shaped LED display screen in display device manufacturing process becomes particularly important, and the conventional method usually adopts the traditional image processing technology based on rectangular grid, carries out grid processing to the maximum containing rectangular area of special-shaped screen periphery, obtains regular grid, then through preset pixel mapping table, the data of virtual regular grid point is distributed to corresponding physical LED lamp bead for screening, and the effective pixel data screened is sent to driving circuit to realize image display.

[0003] However, the conventional method still has significant limitations in processing the image control of special-shaped LED display screen, due to the non-orthogonal characteristics of special-shaped screen geometry, it is often limited to forcibly adapt special-shaped structure to rectangular grid frame, geometric distortion occurs, the potential advantages of special-shaped screen are not fully utilized, and the pixel point position of display image cannot be accurately aligned with the physical arrangement of actual special-shaped screen, leading to distortion and deformation of image edge, and only reflecting pixel mapping at the level of electrical signal, unable to compensate for physical distortion of light field propagation under irregular geometric structure to realize spatial deformation correction. SUMMARY

[0004] In view of the above existing problems, the present application is proposed.

[0005] Therefore, the present application provides a kind of image display control method of special-shaped LED display screen to solve the problem that only reflecting pixel mapping at the level of electrical signal, unable to compensate for physical distortion of light field propagation under irregular geometric structure.

[0006] To solve the above technical problems, the present application provides the following technical solutions:

[0007] In the first aspect, the present application provides a kind of image display control method of special-shaped LED display screen, which includes,

[0008] Obtain the image data of special-shaped LED display screen, and parse the RGB chrominance value of image data;

[0009] Convert RGB chrominance value into quantum dot energy level regulation parameter, and calculate the control signal of quantum dot energy level transition;

[0010] Convert the control signal into electrical pulse signal, drive the quantum dot coating of special-shaped LED display screen to carry out directional electron transition, and generate electron distribution state;

[0011] The optical compensation parameter is calculated based on the electron distribution state and converted into an ionization path matrix, and the ionization inert gas of the special-shaped LED display screen is modulated by using the ionization path matrix to form a plasma cloud;

[0012] The electron distribution state and the plasma cloud are integrated into a fusion light signal, the optical path difference of the special-shaped LED display screen is dynamically corrected by an optical field interference processor, a corrected fusion light signal is generated, and a zero-distortion image of the fusion light signal is displayed on the special-shaped LED display screen.

[0013] As a preferred scheme of the image display control method of the special-shaped LED display screen, the RGB chrominance value of the parsed image data refers to decoding the image data by color space conversion to generate the normalized intensity value of each pixel in the red, green and blue three channels.

[0014] As a preferred scheme of the image display control method of the special-shaped LED display screen, the quantum dot energy level regulation parameter includes quantum energy level structure, basic voltage and target excitation wavelength value.

[0015] The control signal of the quantum dot energy level transition refers to the quantum dot energy level offset and the driving voltage value calculated by using the quantum dot energy level regulation parameter.

[0016] As a preferred scheme of the image display control method of the special-shaped LED display screen, the control signal is converted into an electric pulse signal to drive the quantum dot coating of the special-shaped LED display screen to generate an electron distribution state, and the specific steps are,

[0017] The control signal is analyzed by using the quantum dot energy level offset and the driving voltage value to generate an effective action time window of the control signal.

[0018] The control signal is time-modulated by using the effective action time window to generate a discrete signal segment.

[0019] The pulse width, amplitude and interval are calculated according to the discrete signal segment, and combined into an electric pulse signal.

[0020] The unique address identifier of the physical pixel in the electrode position database is queried to generate a driving electrode coordinate set.

[0021] The electric pulse signal is aggregated based on the driving electrode coordinate set to generate an electric pulse signal matrix.

[0022] The electrode array of the quantum dot coating is applied to the electric pulse signal matrix to excite the quantum dots to generate an excited state distribution.

[0023] The excited state distribution is detected by using a photodiode to obtain electron density data.

[0024] The electron density data is converted into an electron distribution state using a pre-calibrated photoelectric conversion coefficient.

[0025] As a preferred scheme of the image display control method of the special-shaped LED display screen, the optical compensation parameters are calculated based on the electron distribution state and converted into an ionization path matrix, the ionization inert gas of the special-shaped LED display screen is modulated using the ionization path matrix to form a plasma cloud, and the specific steps are as follows.

[0026] The optical compensation parameters of each physical pixel are calculated based on the electron distribution state.

[0027] The optical compensation parameters are mapped into an ionization path matrix, and the electric field distribution of the ionization electrode array is defined.

[0028] The ionization electrode array of the special-shaped LED display screen is dynamically modulated according to the ionization path matrix.

[0029] A high-frequency electric field is applied to the inert gas of the special-shaped LED display screen through the ionization electrode array to excite the inert gas to ionize and generate a plasma cloud.

[0030] As a preferred scheme of the image display control method of the special-shaped LED display screen, the electron distribution state and the plasma cloud are integrated into a fusion light signal, and the specific steps are as follows.

[0031] The electron density and spatial coordinates in the electron distribution state are extracted.

[0032] The electron density is converted into a luminous intensity value using a pre-calibrated photoelectric conversion coefficient.

[0033] The luminous intensity value is mapped into a quantum dot luminous intensity distribution matrix according to the spatial coordinates.

[0034] The refractive index compensation coefficient is calculated according to the density distribution of the plasma cloud.

[0035] After spatial registration of the quantum dot luminous intensity distribution matrix and the refractive index compensation coefficient, the fusion light signal is pixel by pixel.

[0036] As a preferred scheme of the image display control method of the special-shaped LED display screen, the optical path difference of the special-shaped LED display screen is dynamically corrected by the light field interference processor to generate a corrected fusion light signal, and the zero-distortion image of the fusion light signal is displayed on the special-shaped LED display screen, and the specific steps are as follows.

[0037] The optical path difference compensation matrix is constructed using the optical path difference of the special-shaped LED display screen.

[0038] The fused optical signal is input into the optical field interferometer processor, and the interference phase distribution is generated through wavefront analysis;

[0039] Calculate the phase difference of the interference phase distribution and the optical path difference compensation matrix to generate the optical correction factor;

[0040] performing phase and amplitude modulation on the fused optical signal using an optical correction factor to generate a corrected fused optical signal;

[0041] The corrected fused light signal is converted into a driving signal to control the physical pixels of the special-shaped LED display to emit light and generate a zero-distortion image.

[0042] In a second aspect, the present invention provides a special-shaped LED display image display control system, comprising:

[0043] The acquisition module is used to obtain the image data of the special-shaped LED display and analyze the RGB color value of the image data;

[0044] A control module is used to convert RGB chromaticity values ​​into quantum dot energy level control parameters and calculate the control signal for quantum dot energy level transition;

[0045] The driving module is used to convert the control signal into an electrical pulse signal to drive the quantum dot coating of the special-shaped LED display to perform directional electron transition and generate an electron distribution state;

[0046] The compensation module is used to calculate the optical compensation parameters based on the electron distribution state and convert them into an ionization path matrix. The ionization path matrix is ​​used to modulate the ionized inert gas of the special-shaped LED display to form a plasma cloud.

[0047] The correction module is used to integrate the electron distribution state and the plasma cloud into a fused light signal, dynamically correct the optical path difference of the special-shaped LED display through the light field interference processor, generate a corrected fused light signal, and display a zero-distortion image of the fused light signal on the special-shaped LED display.

[0048] In a third aspect, the present invention provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: when the computer program is executed by the processor, any step of the image display control method of the special-shaped LED display screen as described in the first aspect of the present invention is implemented.

[0049] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, any step of the image display control method of the special-shaped LED display screen as described in the first aspect of the present invention is implemented.

[0050] The present application has the beneficial effects that: through the photoelectric fusion control technology, high-precision zero-distortion image display of the special-shaped LED display screen is realized, through accurate generation of optical compensation parameters and ionization path matrix, the ionization process of inert gas is dynamically controlled, a uniform plasma cloud is formed, the propagation characteristics of the light signal are greatly optimized, the uniformity and stability of the light field distribution are enhanced, the complex curved surface display requirements are effectively adapted, not only the brightness uniformity of the special-shaped LED display screen is improved, the visual immersion is improved, but also the manufacturing energy consumption is reduced, the service life of the special-shaped LED display screen is prolonged, high-fidelity output of the fused light signal and zero-distortion presentation of the special-shaped display screen image are realized, high-definition, wide-viewing-angle excellent visual effects are provided for the high-end exhibition and virtual reality technical fields, and high-performance requirements of diversified application scenes are met. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0052] Fig. 1 The flowchart of the image display control method of the special-shaped LED display screen.

[0053] Fig. 2 The schematic diagram of the image display control system of the special-shaped LED display screen.

[0054] Fig. 3 The flowchart of the electronic distribution state.

[0055] Fig. 4 The flowchart of the plasma cloud. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0057] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0058] Second, the "one embodiment" or "an embodiment" referred to herein can include a particular feature, structure, or characteristic. The various embodiments appearing at different places in this specification can not all refer to the same embodiment or to the same implementations or alternatives of the same implementation.

[0059] Referring to Figs. 1-4 For one embodiment of the present application, the embodiment provides a special-shaped LED display screen image display control method, comprising the following steps:

[0060] S1, obtaining image data of a special-shaped LED display screen and parsing RGB chrominance values of the image data.

[0061] In the display device manufacturing process, using a standard image file parsing library, accessing the signal input interface of the special-shaped LED display screen, obtaining the image data of the special-shaped LED display screen;

[0062] Wherein, the image data contains color information of each pixel, and the image data is stored in a standard image format, such as JPEG, PNG and RAW;

[0063] Using the metadata reading function of the standard image file parsing library, comparing the image data and the display requirements of the special-shaped LED display screen, verifying whether the format of the image data meets the display requirements of the special-shaped LED display screen;

[0064] If the format of the image data does not match, it is converted to a supported RGB format through the parsing library to generate image data after format verification;

[0065] The display requirements include the format, resolution and bit depth information of the image file; for example, the image formats of JPEG and PNG, the resolution of 1920x1080 and the bit depth of 24-bit RGB;

[0066] The image data after format verification is preprocessed to generate a luminance equalization pixel matrix;

[0067] The preprocessing includes denoising processing, geometric correction and luminance equalization, which are as follows:

[0068] A Gaussian blur filtering method is used to perform convolution operation on the image data after format verification to remove noise of the image data and generate a denoising pixel matrix, which is as follows:

[0069] The pixel matrix is extracted from the image data after format verification, and the pixel matrix includes color information of each pixel, i.e. chrominance values of red, green and blue three channels, ranging from 0 to 255, for example, the chrominance value of a pixel is (120, 150, 180);

[0070] The Gaussian blur filter template is set by using historical image data to determine a denoising filter region;

[0071] The Gaussian blur filter template is a fixed-size two-dimensional array, such as a 3x3 region;

[0072] The Gaussian blur filter method is used to traverse each pixel position in the pixel matrix, starting from the top left corner and moving row by row and column by column, selecting the current pixel and its surrounding neighborhood pixels to form a denoising filter region of the same size as the Gaussian blur filter template, such as a 3x3 region;

[0073] In the denoising filter region, the corresponding pixel chrominance values of the red, green, and blue channels are respectively weighted and summed with the template values to obtain new chrominance values of the red, green, and blue channels, which are used as the denoised chrominance values of the current pixel;

[0074] The denoised chrominance values are stored in the corresponding pixel position, and the pixel matrix is updated, and the steps are repeated until all pixels are traversed, and the final denoised pixel matrix is obtained;

[0075] The denoised pixel matrix stores the denoised chrominance values of the red, green, and blue channels;

[0076] The denoised pixel matrix is geometrically corrected to eliminate the distortion caused by the non-planar geometry of the irregular LED display screen, such as curved surfaces and irregular shapes;

[0077] The geometric correction process is as follows:

[0078] The spatial coordinates and corresponding red, green, and blue channel chrominance values of each pixel are obtained from the denoised pixel matrix, for example, a pixel coordinate is (50, 100) and the chrominance value is (122, 140, 170);

[0079] The geometric mapping table of the irregular LED display screen is read, which stores the correspondence between the irregular shape of the irregular LED display screen and the planar pixel coordinates, for example, the planar coordinate (50, 100) is mapped to the curved surface physical coordinate (48, 102);

[0080] It should be noted that the geometric mapping table refers to the correspondence between the pixel spatial coordinates and the curved surface physical coordinates of the geometric structure, such as the curved surface shape, formed by measuring the geometric structure of the display device, such as the curved surface shape, by a laser scanner during the manufacturing process of the display device, and matching the pixel spatial coordinates with the curved surface physical coordinates of the geometric structure;

[0081] The display device refers to the irregular LED display screen;

[0082] Each pixel position in the denoised pixel matrix is traversed to extract the planar coordinate of the current pixel;

[0083] Looking up the current plane coordinate pair corresponding to the curved surface physical coordinate in the geometric mapping table to determine the coordinate of the pixel in the actual display position of the special-shaped LED display screen;

[0084] According to the curved surface physical coordinate, the chrominance value of the pixel in the denoising pixel matrix is redistributed to the new coordinate position;

[0085] If multiple plane coordinates are mapped to the same curved surface physical coordinate, the average value of the pixel chrominance value is taken as the chrominance value of the new coordinate, for example, the red channel chrominance values of two pixels are 122 and 124 respectively, and the average value is 123;

[0086] If some curved surface physical coordinates have no corresponding plane coordinates, the chrominance value of the adjacent pixel is used for interpolation filling, for example, the red channel chrominance value of the new coordinate (49, 101) obtained by interpolation is 123;

[0087] The pixel coordinates and chrominance values after redistribution are integrated to generate a geometric correction pixel matrix;

[0088] For example, the pixel coordinates of the denoising pixel matrix are queried through the geometric mapping table of the special-shaped LED display screen, new actual coordinates are redistributed, and a geometric correction pixel matrix is generated;

[0089] The histogram equalization method is adopted to create histograms for red, green and blue channels respectively; the histogram is used to record the number of pixels of each chrominance value;

[0090] The number of pixels of red, green and blue channels in the geometric correction pixel matrix is counted, and the proportion of the number of pixels of each chrominance value and below to the total number of pixels is calculated to obtain the cumulative distribution function values of red, green and blue channels, and the formula is:

[0091]

[0092] Wherein, D represents the cumulative distribution function value, H represents the number of pixels corresponding to the chrominance value i, N i represents the total number of chrominance pixels, i represents the index variable of the chrominance value, represents the summation of the chrominance values from 0 to c, and c represents the current chrominance value;

[0093] Based on the cumulative distribution function value of each channel, the RGB value of each pixel is updated, the brightness distribution in the geometric correction pixel matrix is balanced, a brightness equalization pixel matrix is generated, and the brightness deviation caused by uneven light source and sensor difference is eliminated;

[0094] The brightness equalization pixel matrix is analyzed, and the RGB chrominance value of each pixel is extracted and standardized, which is as follows:

[0095] Traverse each pixel position in the luminance equalization pixel matrix, move row by column from the top left corner, read the red, green and blue chrominance values of the current pixel position, and record them as an RGB chrominance value triplet; for example, the RGB chrominance value is (12, 15, 18);

[0096] Linearly normalize the red, green and blue chrominance values respectively, map the 0-255 range to the 0-1 range, for example, the red channel chrominance value 12 is normalized to 0.047;

[0097] Record the normalized red, green and blue chrominance values as standardized RGB chrominance values; for example, the standardized RGB chrominance value is (0.047, 0.059, 0.071);

[0098] Correspond the standardized RGB chrominance value to the current pixel position to ensure the consistency of color information on different devices;

[0099] Repeat the steps until all pixels in the luminance equalization pixel matrix are traversed, and generate standardized RGB chrominance values for all physical pixels;

[0100] It should be noted that display device manufacturing refers to the full-process industrialized production process of photoelectric integration and correction parameter burning based on photoelectric parameters and structural design (such as the microcavity array and electrode arrangement of special-shaped screens), through roll-to-roll photolithography to make flexible circuits, inkjet printing to realize quantum dot precise arrangement, and vacuum injection bonding to seal inert gas chambers, and finally complete the photoelectric integration and correction parameter burning process;

[0101] Further, the inert gas ionization characteristic data is obtained by collecting the breakdown field strength of different gas ratios Ne:Ar in the packaging link of special-shaped LED display screen manufacturing;

[0102] And the optical path difference of the special-shaped LED display screen refers to the substrate curvature radius and thickness manufacturing tolerance in the manufacturing process of the special-shaped LED display screen, which is used to construct the optical path difference compensation matrix.

[0103] S2, convert the RGB chrominance value into quantum dot energy level regulation parameter, and calculate the control signal of quantum dot energy level transition.

[0104] Use the data interface to obtain the standardized RGB chrominance value in the standardized pixel matrix;

[0105] Wherein, the standardized pixel matrix is stored in the form of a two-dimensional array, and each pixel element is a standardized RGB chrominance value, ranging from 0 to 1;

[0106] Traverse each pixel position in the verified standardized pixel matrix, read the standardized RGB chrominance value of the corresponding pixel position, and generate a standardized RGB chrominance set;

[0107] Based on the quantum dot light-emitting principle, a quantum dot energy level regulation parameter mapping table is constructed to map the standardized RGB chrominance values to quantum dot energy level regulation parameters;

[0108] The quantum dot energy level regulation parameters include quantum dot energy level structures, basic voltages, and target excitation wavelength values. For example, the standardized RGB chrominance values (0.961, 0.518, 0.024) are mapped to quantum dot energy level structures (red energy level E1, green energy level E2, and blue energy level E3), basic voltages (3.0V, 2.8V, and 2.5V), and target excitation wavelength values (625nm, 520nm, and 470nm).

[0109] Using the quantum dot energy level regulation parameter mapping table, the standardized RGB chrominance value of each pixel in the standardized RGB chrominance value set is found and converted into the corresponding quantum dot energy level regulation parameter to generate a quantum dot energy level regulation parameter set.

[0110] It should be noted that the quantum dot energy level regulation parameter mapping table is set using the spectral test results of the quantum dot coating.

[0111] Based on the quantum dot energy level structures and target excitation wavelength values in the quantum dot energy level regulation parameter set, the quantum dot energy level offset of each pixel is determined to generate a quantum dot energy level offset set.

[0112] For example, the target excitation wavelength value 625nm is compared with the standard energy level wavelength 620nm, and the quantum dot energy level offset is generated based on the energy level-wavelength sensitivity of the quantum dot material.

[0113] Based on the basic voltages and quantum dot energy level offsets in the quantum dot energy level regulation parameters, the basic voltages are adjusted to compensate for the quantum dot energy level offsets to generate driving voltage values.

[0114] For example, the basic voltage 3.0V is combined with the quantum dot energy level offset and the electrical response characteristics of the quantum dot material to generate the driving voltage value 3.1V.

[0115] Integrating the quantum dot energy level offset and the driving voltage value, the quantum dot energy level offset and the driving voltage value of each pixel are paired to generate a control signal for quantum dot energy level transition.

[0116] The integrity of the control signal for quantum dot energy level transition is checked to confirm that the size of the control signal is consistent with the resolution of the irregular LED display screen, and a verified control signal for quantum dot energy level transition is generated.

[0117] S3, the control signal is converted into an electric pulse signal to drive the quantum dot coating of the irregular LED display screen to perform directional electron transition, generating an electron distribution state.

[0118] Extract the quantum dot energy level offset and driving voltage value from the control signal of quantum dot energy level transition;

[0119] Analyze the control signal of quantum dot energy level transition using the quantum dot energy level offset and driving voltage value, generate the effective action time window of the control signal, as follows:

[0120] Query the response characteristics of quantum dot material using the driving voltage value, determine the basic energy level transition time;

[0121] Based on the quantum dot energy level offset, calculate the additional time of energy level transition, the formula is as follows:

[0122]

[0123] Where t represents the additional time of energy level transition, E represents the quantum dot energy level offset, q represents the energy level-voltage sensitivity, and V represents the driving voltage value;

[0124] Integrate the basic energy level transition time and the additional time of energy level transition to generate the effective action time of the control signal;

[0125] Repeat the above steps to determine the effective action time of all control signals and integrate them into the effective action time window;

[0126] Divide the driving voltage value of the control signal by time using the effective action time window to generate discrete signal segments;

[0127] Calculate the pulse width, pulse amplitude and pulse interval according to the discrete signal segments, and combine them into an electrical pulse signal, the formula is:

[0128] P=(A,W,G);

[0129] A=V j ;

[0130]

[0131] Where P represents the electrical pulse signal, A represents the pulse amplitude (unit: volt), W represents the pulse width (unit: second), G represents the pulse interval (unit: second), V j represents the driving voltage value of the discrete signal segment (unit: volt), T represents the effective time window (unit: second), N j represents the total number of discrete signal segments (integer), f represents the refresh frequency of the driving circuit (unit: hertz), and j represents the index variable of the discrete signal segment;

[0132] Where the pulse width refers to the duration of the discrete signal segment, the pulse amplitude refers to the driving voltage value of the discrete signal segment, and the pulse interval refers to the time gap between adjacent discrete signal segments;

[0133] Query the unique address identifier of the physical pixel in the electrode position database to generate a set of driving electrode coordinates;

[0134] The electrode position database refers to the physical layout record of the electrode array during the manufacturing process of the special-shaped LED display. The electrode position database includes the pixel resolution of the special-shaped LED display and the physical position of the electrode;

[0135] Aggregating the electrical pulse signals based on the driving electrode coordinates to generate an electrical pulse signal matrix;

[0136] Input the electric pulse signal matrix into the electrode array driving circuit of the special-shaped LED display screen;

[0137] The driving circuit applies an electrical signal to the electrode array of the quantum dot coating according to the pulse width, amplitude and interval of the electrical pulse signal matrix;

[0138] The electrical signal excites the quantum dots in the quantum dot coating, causing directional electronic transitions and generating excited state distributions;

[0139] Furthermore, quantum dot coating refers to a nano-semiconductor material layer (such as a ZnS core-shell structure) formed on the surface of a substrate through a precision coating process (such as inkjet printing) during the display device manufacturing process. The electron particle size is controlled within the range of 3-5 nanometers, and high-purity RGB primary colors are excited through the quantum confinement effect during the electric drive circuit process. The aluminum oxide barrier layer is encapsulated through atomic layer deposition technology ALD to isolate water and oxygen corrosion.

[0140] Use photodiodes to detect excited state distribution and obtain electron density data;

[0141] The electron density data is converted into electron distribution states using pre-calibrated photoelectric conversion coefficients.

[0142] S4. Calculate optical compensation parameters based on the electron distribution state and convert them into an ionization path matrix. Use the ionization path matrix to modulate the ionized inert gas of the special-shaped LED display to form a plasma cloud.

[0143] Read the electronic distribution state through the data interface;

[0144] Using the quantum dot luminescence principle, the influence of electron distribution state on luminous intensity is analyzed to determine the brightness correction coefficient (unit: cd / m 2 / electronic);

[0145] It should be noted that the principle of quantum dot luminescence refers to the process in which electrons in nanoscale semiconductor quantum dots are excited by an electric field, transitioning from a ground state to an excited state and then returning to the ground state, releasing photons of specific wavelengths, thereby producing high-purity red, green, and blue primary colors of light.

[0146] The process of analyzing the effect of electron distribution on luminous intensity is:

[0147] Traverse the electron distribution state and read the electron density value of each physical pixel row by row and column by column, that is, the number of electrons per unit volume of each physical pixel;

[0148] Using the principle of quantum dot luminescence, we can obtain the luminescence intensity values ​​corresponding to different electron density values. That is, we can determine the luminescence intensity by using the energy of photons released when electrons return from the excited state to the ground state. For example, the electron density value is 1000 cd / m 2 / electrons correspond to a luminous intensity of 10 candela / square meter;

[0149] The target luminous intensity value is set using the brightness standard in the manufacturing process of special-shaped LED displays. For example, the target luminous intensity value is 12 candelas / square meter.

[0150] Compare the luminous intensity value with the target luminous intensity value and calculate the brightness correction coefficient, that is, the ratio of the target luminous intensity value to the luminous intensity value;

[0151] Based on the electron distribution state, the optical compensation parameters of each physical pixel are calculated using the formula:

[0152] Optical compensation parameter = electron distribution state × brightness correction coefficient;

[0153] The ionization path parameters are determined using historical inert gas ionization characteristic data of special-shaped LED displays;

[0154] Historical noble gas ionization characteristic data refers to the relationship between electric field strength and ionization path;

[0155] Ionization path parameters include the electric field direction and intensity range;

[0156] Integrate the electric field direction and intensity range to generate a power path mapping table;

[0157] The electric path mapping table is used to match the ionization path parameters corresponding to each optical compensation parameter, define the electric field distribution of the ionization electrode array, and generate an ionization path matrix;

[0158] The ionization path matrix is ​​input into the ionization electrode driving circuit, and the ionization electrode driving circuit uses the ionization path parameters to dynamically modulate the voltage and frequency in the ionization electrode array of the special-shaped LED display screen to generate the electric field distribution of the ionization electrode array;

[0159] The electric field distribution of the ionization electrode array is input into the driving circuit of the high-frequency electric field, and the electric field direction and electric field intensity value of the electric field distribution are extracted;

[0160] According to the electric field intensity value, the driving circuit generates a corresponding high-frequency voltage signal, for example, an intensity of 500 volts / meter generates a high-frequency voltage of 5 volts;

[0161] According to the electric field direction value, the driving circuit adjusts the phase of the voltage signal to ensure that the electric field direction is consistent with the ionization path, for example, a direction of 45 degrees corresponds to a phase shift of 45 degrees;

[0162] The generated high-frequency voltage signal is applied to the corresponding electrodes of the ionization electrode array, covering the noble gas region of the irregular LED display screen, and exciting the noble gas (such as neon and argon) to ionize and generate a plasma cloud.

[0163] S5, integrate the electron distribution state and the plasma cloud into a fusion light signal, dynamically correct the optical path difference of the irregular LED display screen through the light field interference processor, generate a corrected fusion light signal, and display a zero-distortion image of the fusion light signal on the irregular LED display screen.

[0164] Traverse the verified electron distribution state row by row and column by column, obtain the electron distribution state value of each pixel as the electron density, and record the two-dimensional coordinates of each pixel as the spatial coordinates, for example, (100, 200);

[0165] Convert the electron density to the luminous intensity value using the pre-calibrated photoelectric conversion coefficient, the formula is:

[0166] Luminous intensity value = electron density × photoelectric conversion coefficient;

[0167] The pre-calibrated photoelectric conversion coefficient is based on the quantum dot luminous efficiency calibration, for example, 0.1 cd / m 2 / electron;

[0168] According to the spatial coordinates, map the luminous intensity value to a quantum dot luminous intensity distribution matrix;

[0169] According to the electron density distribution of the plasma cloud, calculate the refractive index compensation coefficient, the formula is:

[0170]

[0171] Where η represents the refractive index compensation coefficient, 1 represents the reference refractive index of the noble gas without the influence of the plasma, normalized to 1, κ represents the plasma refractive index sensitivity, ρ represents the plasma cloud electron density, represents the wavelength normalization factor, λ c represents the color channel wavelength, λ ref represents the reference wavelength, c represents the index variable of the color channel, and ref represents the index variable of the reference;

[0172] The quantum dot light intensity distribution matrix is spatially registered with the refractive index compensation coefficient, and then superimposed pixel by pixel into a fused light signal.

[0173] A path difference compensation matrix is constructed using the path difference of the special-shaped LED display screen.

[0174] The fused light signal is input into an optical field interference processor to generate an interference phase distribution through wavefront analysis, as follows:

[0175] The quantum dot light intensity distribution matrix and the refractive index compensation coefficient are extracted from the fused light signal.

[0176] The quantum dot light intensity distribution matrix is transmitted to the optical field interference processor.

[0177] The optical field interference processor receives the light intensity values of the quantum dot light intensity distribution matrix, and performs wavefront reconstruction on the light intensity values of each pixel to generate the amplitude of the light wave, i.e., the square root of the light intensity value.

[0178] The optical field interference processor analyzes the propagation path of the light wave and extracts the interference phase value of each pixel light wave.

[0179] The interference phase value is obtained based on the two-dimensional coordinates of the pixel and the optical path distance.

[0180] Using the refractive index compensation coefficient and the interference phase value of the light wave, the propagation speed of the light wave is adjusted to generate the refractive index calibrated interference phase value.

[0181] The amplitude and the interference phase value are combined into an interference phase distribution.

[0182] The phase difference between the interference phase distribution and the path difference compensation matrix is calculated to generate an optical correction factor, with the formula being:

[0183] F = exp(j·(Φ int -φ comp ));

[0184] Wherein, F represents the optical correction factor, exp represents the exponential function, j represents the imaginary part of the optical correction factor, Φ int represents the interference phase value of the interference phase distribution (unit: radian), Φ comp represents the path difference compensation phase value (unit: radian), int represents the index variable of the interference, and comp represents the index variable of the compensation, Φ int -Φ comp represents the phase difference (unit: radian).

[0185] The optical correction factor is used to modulate the phase and amplitude of the fused light signal to generate a corrected fused light signal, as follows:

[0186] extracting an interference phase value of each pixel in the interference phase distribution from the light field interference processor;

[0187] extracting an optical path difference compensation phase value from the optical path difference compensation matrix, the optical path difference compensation phase value representing a phase difference caused by the optical path difference of the light path; for example, the compensation phase value of a pixel is 0.1 radian;

[0188] calculating a phase correction value based on the interference phase value and the optical path difference compensation phase value, that is, the absolute difference value of the interference phase value and the optical path difference compensation phase value;

[0189] extracting a quantum dot light intensity distribution matrix from the fused light signal, and extracting the light intensity value of each pixel as the amplitude value;

[0190] adjusting the interference phase value of the interference phase distribution according to the phase correction value, generating a new interference phase value, for example, adjusting the interference phase value 0.315 radian to 0.215 radian;

[0191] At the same time, adjust the amplitude value according to the phase correction value to generate a new amplitude value;

[0192] re-storing the adjusted phase value and amplitude value to generate a corrected fused light signal;

[0193] By pulse width modulation technology, the corrected fused light signal is converted into a driving signal of the special-shaped LED display screen, and the driving circuit controls the physical pixel to emit light to present a zero-distortion image.

[0194] The embodiment also provides a special-shaped LED display screen image display control system, comprising:

[0195] The acquisition module is configured to acquire image data of the special-shaped LED display screen and parse RGB chrominance values of the image data;

[0196] The control module is configured to convert the RGB chrominance values into quantum dot energy level regulation parameters and calculate a control signal for quantum dot energy level transition;

[0197] The driving module is configured to convert the control signal into an electric pulse signal, drive the quantum dot coating of the special-shaped LED display screen to perform directional electron transition, and generate an electron distribution state;

[0198] The compensation module is configured to calculate optical compensation parameters based on the electron distribution state and convert the optical compensation parameters into an ionization path matrix, and use the ionization path matrix to modulate the ionization noble gas of the special-shaped LED display screen to form a plasma cloud;

[0199] The correction module is configured to integrate the electronic distribution state and the plasma cloud into a fusion light signal, dynamically correct an optical path difference of the special-shaped LED display screen through the light field interference processor, generate a corrected fusion light signal, and display a zero-distortion image of the fusion light signal on the special-shaped LED display screen.

[0200] The embodiment also provides a computer device suitable for the special-shaped LED display screen image display control method, which comprises a memory and a processor.

[0201] The computer device can be a terminal, and the computer device comprises a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. The processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is configured to perform wired or wireless communication with external terminals. The wireless communication can be achieved through WIFI, an operator network, NFC (Near Field Communication) or other technologies. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse.

[0202] The embodiment also provides a storage medium having a computer program stored thereon, the program being executed by a processor to implement the special-shaped LED display screen image display control method. The storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic storage, a flash memory, a magnetic disk or an optical disk.

[0203] In conclusion, by the photoelectric fusion control technology, the high-precision zero-distortion image display of the special-shaped LED display screen is realized, the optical compensation parameters and ionization path matrix are accurately generated, the ionization process of the inert gas is dynamically controlled, the uniform plasma cloud is formed, the propagation characteristics of the light signal are greatly optimized, the uniformity and stability of the light field distribution are enhanced, the complex curved surface display requirements are effectively adapted, not only the brightness uniformity of the special-shaped LED display screen is improved, the visual immersion is improved, but also the manufacturing energy consumption is reduced, the service life of the special-shaped LED display screen is prolonged, the high-fidelity output of the fused light signal and the zero-distortion presentation of the special-shaped display screen image are realized, high-definition and wide-view excellent visual effects are provided for the high-end exhibition and virtual reality technical fields, and the high-performance requirements of diversified application scenes are met.

[0204] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A method for controlling image display on a special-shaped LED display screen, characterized in that: include, Obtain image data of special-shaped LED display screens and analyze the RGB color value of the image data; Convert RGB chromaticity values ​​into quantum dot energy level control parameters and calculate the control signal of quantum dot energy level transition; Convert the control signal into an electrical pulse signal to drive the quantum dot coating of the special-shaped LED display to perform directional electron transition and generate an electron distribution state; The optical compensation parameters are calculated based on the electron distribution state and converted into an ionization path matrix. The ionization path matrix is ​​used to modulate the ionized inert gas of the special-shaped LED display to form a plasma cloud. The electron distribution state and the plasma cloud are integrated into a fused light signal. The optical path difference of the special-shaped LED display is dynamically corrected by the light field interference processor to generate a corrected fused light signal. The zero-distortion image of the fused light signal is displayed on the special-shaped LED display. The specific steps are as follows: Extract electron density and spatial coordinates from electron distribution states; Using pre-calibrated photoelectric conversion coefficients, the electron density is converted into luminous intensity values; According to the spatial coordinates, the luminous intensity value is mapped to the quantum dot luminous intensity distribution matrix; Calculate the refractive index compensation coefficient based on the density distribution of the plasma cloud; After spatial registration of the quantum dot luminescence intensity distribution matrix and the refractive index compensation coefficient, they are superimposed pixel by pixel to form a fused light signal; Using the optical path difference of special-shaped LED display screen, an optical path difference compensation matrix is ​​constructed; The fused optical signal is input into the optical field interferometer processor, and the interference phase distribution is generated through wavefront analysis; Calculate the phase difference of the interference phase distribution and the optical path difference compensation matrix to generate the optical correction factor; performing phase and amplitude modulation on the fused optical signal using an optical correction factor to generate a corrected fused optical signal; The corrected fused light signal is converted into a driving signal to control the physical pixels of the special-shaped LED display to emit light and generate a zero-distortion image.

2. The image display control method for a special-shaped LED display screen according to claim 1, wherein: The analyzing the RGB chromaticity values ​​of the image data refers to decoding the image data through color space conversion to generate standardized intensity values ​​of each pixel in the red, green and blue channels.

3. The image display control method for a special-shaped LED display screen according to claim 1, wherein: The quantum dot energy level control parameters include quantum energy level structure, base voltage and target excitation wavelength value; The control signal for the quantum dot energy level transition refers to the quantum dot energy level offset and the driving voltage value calculated using the quantum dot energy level control parameters.

4. The image display control method for a special-shaped LED display screen according to claim 1, wherein: The control signal is converted into an electric pulse signal to drive the quantum dot coating of the special-shaped LED display to perform directional electron transition and generate an electron distribution state. The specific steps are: The control signal is analyzed using the quantum dot energy level offset and the driving voltage value to generate the effective action time window of the control signal; The effective action time window is used to perform time sequence modulation on the control signal to generate discrete signal segments; Calculate pulse width, amplitude and interval based on discrete signal segments and combine them into an electrical pulse signal; Query the unique address identifier of the physical pixel in the electrode position database to generate a set of driving electrode coordinates; Aggregating the electrical pulse signals based on the driving electrode coordinates to generate an electrical pulse signal matrix; Applying a quantum dot-coated electrode array to a matrix of electrical pulse signals to excite the quantum dots and generate an excited state distribution; Use photodiodes to detect excited state distribution and obtain electron density data; The electron density data is converted into electron distribution states using pre-calibrated photoelectric conversion coefficients.

5. The image display control method for a special-shaped LED display screen according to claim 1, wherein: The optical compensation parameters are calculated based on the electron distribution state and converted into an ionization path matrix. The ionization path matrix is ​​used to modulate the ionized inert gas of the special-shaped LED display to form a plasma cloud. The specific steps are: Calculating the optical compensation parameters of each physical pixel based on the electron distribution state; Mapping optical compensation parameters into an ionization path matrix to define the electric field distribution of the ionization electrode array; Dynamically modulate the ionization electrode array of the special-shaped LED display according to the ionization path matrix; A high-frequency electric field is applied to the inert gas of the special-shaped LED display through an ionization electrode array to excite the inert gas for ionization and generate a plasma cloud.

6. A special-shaped LED display image display control system, based on the special-shaped LED display image display control method according to any one of claims 1 to 5, characterized in that: include, The acquisition module is used to obtain the image data of the special-shaped LED display and analyze the RGB color value of the image data; A control module is used to convert RGB chromaticity values ​​into quantum dot energy level control parameters and calculate the control signal for quantum dot energy level transition; The driving module is used to convert the control signal into an electrical pulse signal to drive the quantum dot coating of the special-shaped LED display to perform directional electron transition and generate an electron distribution state; The compensation module is used to calculate the optical compensation parameters based on the electron distribution state and convert them into an ionization path matrix. The ionization path matrix is ​​used to modulate the ionized inert gas of the special-shaped LED display to form a plasma cloud. The correction module is used to integrate the electron distribution state and the plasma cloud into a fused light signal, dynamically correct the optical path difference of the special-shaped LED display through the light field interference processor, generate a corrected fused light signal, and display a zero-distortion image of the fused light signal on the special-shaped LED display.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the special-shaped LED display image display control method described in any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the image display control method of the special-shaped LED display screen according to any one of claims 1 to 5 are implemented.

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