Micro-display system, display method and silicon-based liquid crystal micro-display equipment

Abstract

The invention provides a micro-display system, a display method and a silicon-based liquid crystal micro-display device, and relates to the technical field of micro-display. The method comprises the following steps: firstly, a data reconstruction module decomposes an integral PWM wave of an input target data source under any gray scale into a plurality of local small PWM waves according to a reconstruction strategy of the data source indicated by a target reconstruction parameter, and determines an effective time part in the plurality of local small PWM waves to obtain reconstructed data; and the phase correction module performs phase correction on the reconstructed data according to a phase correction mode indicated by the target phase correction parameter to obtain phase-corrected data, and sends the phase-corrected data to the LCoS display module for display. According to the invention, in the same period of time, on the premise of ensuring that the output display gray scale or phase is correct, the turning frequency of the PWM wave of the target data source under any gray scale is accelerated, the fluctuation of the phase curve of the output result is reduced, the stability of the phase curve is improved, and the display effect is improved.

Description

Technical Field

[0001] The present application relates to the field of micro-display technology, and in particular to a micro-display system, a display method and a liquid crystal on silicon micro-display device. Background Art

[0002] Since liquid crystal materials can introduce controllable phase delay and change the polarization state of the incident light, the developed liquid crystal on silicon (LCoS) spatial light modulator has the advantages of simple driving, low cost and low power consumption. It is widely used in optical tweezers, optical profilometry, beam shaping, adaptive optics, holographic display and other fields.

[0003] In the prior art, in order to solve the problem that the driving voltage of the silicon-based liquid crystal spatial light modulator cannot be fixed at a certain value, causing the liquid crystal molecules to be polarized and gradually lose their optical properties over time, it is proposed to use a chip with an analog pixel structure design and use the AB frame design concept.

[0004] However, at the same grayscale, it is difficult for the absolute values ​​of the driving voltage difference of frame A and the driving voltage difference of frame B to be completely equal, and over time, this deviation will accumulate, causing the fluctuation of the output curve to gradually increase, resulting in poor display effect. Summary of the invention

[0005] The purpose of the present application is to provide a micro display system, a display method and a liquid crystal on silicon micro display device to address the deficiencies in the above-mentioned prior art, so as to solve the technical problems existing in the prior art.

[0006] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows: In a first aspect, an embodiment of the present application provides a micro display system, the system comprising: a driving module, a liquid crystal on silicon micro display module; The driving module comprises: a configuration module, a data reconstruction module and a phase correction module, wherein the output end of the configuration module is connected to the input end of the data reconstruction module and the input end of the phase correction module respectively; the output end of the data reconstruction module is connected to the input end of the phase correction module, and the output end of the phase correction module is connected to the input end of the liquid crystal on silicon micro display module; The configuration module is used to obtain a target reconstruction parameter and a target phase correction parameter indicated by a user, wherein the target reconstruction parameter is used to indicate a reconstruction strategy for an input data source, and the target phase correction parameter is used to indicate a phase correction method for reconstructed data; The data reconstruction module is used to receive a target data source to be displayed, and reconstruct the target data source according to the target reconstruction parameter to obtain reconstructed data, and send the reconstructed data to the phase correction module; The phase correction module is used to perform phase correction processing on the reconstructed data according to the target phase correction parameter to obtain phase-corrected data, and send the phase-corrected data to the LCOS microdisplay module; The liquid crystal on silicon micro display module is used to display the phase-corrected data.

[0007] Optionally, the process of determining the reconstruction strategy of the data source includes: Obtaining PWM waves of each grayscale of the sample data source to be processed; According to the target grouping method, the PWM waves of each grayscale are decomposed into multiple groups of PWM waves, wherein the grouping method is a*b, wherein a is the number of groups, b is the number of time portions, and each group of PWM waves includes: multiple time portions; Determine the weight value of each time portion in each group of PWM waves; According to the weight value of each time portion in each group of PWM waves, the effective time portion in each group of PWM waves of each gray scale is determined in sequence; wherein the sum of the effective time portions in each group of PWM waves of the gray scale is equal to the gray scale value of the gray scale; A reconstruction strategy corresponding to the target grouping method is generated according to the effective time portion in each group of PWM waves of each gray scale.

[0008] Optionally, determining the effective time shares in each group of PWM waves of each grayscale in sequence according to the weight value of each time share in each group of PWM waves includes: Dividing the plurality of grayscales into multiple grayscale groups according to a preset number of grayscale groups; According to the weight of each time portion in each group of PWM waves, the effective time portion in each group of PWM waves corresponding to each gray scale in each gray scale group is determined.

[0009] Optionally, determining the effective time shares in each group of PWM waves corresponding to each gray scale in each gray scale group according to the weight of each time share in each group of PWM waves includes: Determine, according to the weight of each time portion in each group of PWM waves, the effective time portion in each group of PWM waves corresponding to each gray scale in the first gray scale group; According to the effective time fractions in each group of PWM waves corresponding to each gray scale in the first gray scale group, the effective time fractions in each group of PWM waves corresponding to each gray scale in each gray scale group except the first gray scale group are iteratively determined in sequence.

[0010] Optionally, the liquid crystal on silicon micro display module includes: at least one digital pixel unit; The digital pixel unit is used to receive the phase-corrected data and light up or turn off under the action of the phase-corrected data.

[0011] Optionally, the liquid crystal on silicon micro display module further includes: a transmission protocol decoding module; The driving module also includes: a storage module and a transmission protocol encoding module; The input end of the storage module is connected to the output end of the data reconstruction module, the output end of the storage module is connected to the input end of the phase correction module, the output end of the phase correction module is connected to the input end of the transmission protocol encoding module, the output end of the transmission protocol encoding module is connected to the input end of the transmission protocol decoding module, and the output end of the transmission protocol decoding module is connected to the input end of each of the digital pixel units; The storage module is used to receive and store the reconstructed data sent by the data reconstruction module; The phase correction module is further used to read the reconstructed data in the storage module, perform phase correction processing on the reconstructed data according to the target phase correction parameters sent by the configuration module to obtain phase-corrected data, and send the phase-corrected data to the transmission protocol encoding module; The transmission protocol encoding module is used to receive the phase-corrected data, encode the phase-corrected data, and send the encoded data to the transmission protocol decoding module; The transmission protocol decoding module is used to decode the encoded data, obtain and display the phase-corrected data; and send the phase-corrected data to the digital image. Optionally, the digital pixel unit includes: at least one pixel circuit; the connection mode of each pixel circuit includes: series connection or parallel connection; The pixel circuit is used to receive the corrected data. If the corrected data is 1, the pixel circuit is lit up under the effect of the corrected data; if the corrected data is 0, the pixel circuit is extinguished under the effect of the corrected data.

[0012] Optionally, the pixel circuit includes: a first triode, a second triode, a third triode, a fourth triode, a first inverter, a second inverter and a glass plate; The first ends of the first three transistors are used to access the phase-corrected data, and the second ends of the first three transistors are used to access the row selection signal; the third ends of the first three transistors are respectively connected to one end of the first inverter, one end of the second inverter, and the second end of the third triode; The other end of the first inverter is respectively connected to the first end of the second transistor, the other end of the second inverter, and the second end of the fourth transistor, the second end of the second transistor is connected to access the row selection signal, and the third end of the second transistor is connected to access the phase-corrected data; The first end of the third triode is used to access the first reference voltage, and the third end of the third triode is respectively connected to the third end of the fourth triode and one end of the glass plate; The first end of the fourth transistor is used to connect to the second reference voltage, and the other end of the glass plate is used to connect to the third reference voltage.

[0013] In a second aspect, an embodiment of the present application further provides a display method, which is applied to the micro display system provided in the first aspect above, and the method includes: Receive a target data source to be displayed; receiving a target reconstruction parameter and a target phase correction parameter input by a user; Reconstructing the target data source according to the target reconstruction parameter to obtain reconstructed data; Performing phase correction on the reconstructed data according to the target phase correction parameter to obtain phase-corrected data; The phase-corrected data is displayed on a liquid crystal on silicon micro-display module in the micro-display system.

[0014] In a third aspect, an embodiment of the present application provides a liquid crystal on silicon micro display device, and the liquid crystal on silicon micro display device includes: including the micro display system provided in the first aspect above.

[0015] The beneficial effects of this application are: The present application provides a micro-display system, a display method and a silicon-based liquid crystal micro-display device. In this scheme, first, a data reconstruction module decomposes a whole PWM wave of an input target data source at any gray scale into multiple local small PWM waves according to the reconstruction strategy of the data source indicated by the target reconstruction parameter, and determines the effective time portion in the multiple local small PWM waves, that is, obtains the reconstructed data; then, the phase correction module performs phase correction on the reconstructed data according to the phase correction method indicated by the target phase correction parameter, obtains the phase-corrected data, and sends the phase-corrected data to the LCoS display module for display. In this way, it is achieved that within the same period of time, under the premise of ensuring that the output display gray scale or phase is correct, the flip frequency of the PWM wave of the target data source at any gray scale is accelerated, the fluctuation of the phase curve of the output result is reduced, the stability of the phase curve is improved, the display effect is improved, and the problem that the chip designed with analog pixel structure in the prior art has deviation accumulation, resulting in the gradual increase of the fluctuation of the output curve, and then causing poor display effect is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of the micro display system provided in the embodiment of the present application Figure 1 ; Figure 2 Schematic diagram of the process of determining the reconstruction strategy of the data source in the data reconstruction module provided in the embodiment of the present application Figure 1 ; Figure 3 Schematic diagram of the process of determining the reconstruction strategy of the data source in the data reconstruction module provided in the embodiment of the present application Figure 2 ; Figure 4 Schematic diagram of the process of determining the reconstruction strategy of the data source in the data reconstruction module provided in the embodiment of the present application Figure 3 ; Figures 5(a), 5(b), 5(c), 5(d), 5(e), 5(f), 5(g) and 5(h) are schematic diagrams of arrangement of reconstructed data generated by a reconstruction strategy corresponding to an 8x9 grouping method provided in an embodiment of the present application; FIG. 6 (a) and FIG. 6 (b) are schematic diagrams showing the arrangement of reconstructed data generated by a reconstruction strategy corresponding to a 4x9 grouping method provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of the micro display system provided in the embodiment of the present application Figure 2 ; Figure 8 A schematic diagram of the structure of the micro display system provided in the embodiment of the present application Figure 3 ; Fig. 9 A schematic diagram of the structure of a pixel circuit in a micro display system provided in an embodiment of the present application; Fig.10 A schematic diagram of a process flow of a micro-display method provided in an embodiment of the present application; Fig.11 This is a schematic diagram of the structure of a liquid crystal on silicon micro display device provided in an embodiment of the present application.

[0018] Icons: 100-micro display system; 101-driving module; 102-LCoS micro display module; 103-configuration module; 104-data reconstruction module; 105-phase correction module; 701-digital pixel unit; 801-transmission protocol decoding module; 802-storage module; 803-transmission protocol encoding module; 901-pixel circuit; 1101-LCoS micro display device. DETAILED DESCRIPTION

[0019] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart under the guidance of the content of the present application, or remove one or more operations from the flowchart.

[0020] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0021] In order to enable those skilled in the art to use the content of this application, the following implementation is provided in conjunction with the specific application scenario "displaying video on a micro display screen". For those skilled in the art, the general principles defined herein can be applied to other embodiments and application scenarios without departing from the spirit and scope of this application. Although this application is mainly described around displaying video on a micro display screen, it should be understood that this is only an exemplary embodiment. This application can be applied to any other scenario.

[0022] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0023] At present, in order to solve the problem that the driving voltage of the silicon-based liquid crystal spatial light modulator cannot be fixed at a certain value, causing the liquid crystal molecules to polarize and gradually lose their optical properties over time, it is proposed to use a chip with an analog pixel structure design and use the AB frame design concept.

[0024] However, at the same grayscale, it is difficult for the absolute values ​​of the driving voltage difference of frame A and the driving voltage difference of frame B to be completely equal, and over time, this deviation will accumulate, causing the fluctuation of the output curve to gradually increase, resulting in poor display effect.

[0025] The embodiments of the present application are based on the above-mentioned problems. The present application provides a micro-display system. The micro-display system can achieve, within the same period of time, under the premise of ensuring that the output display grayscale or phase is correct, accelerating the flipping frequency of the PWM wave of the target data source at any grayscale, reducing the fluctuation of the phase curve of the output result, improving the stability of the phase curve, and improving the display effect. It solves the problem in the prior art that chips designed with analog pixel structures have accumulated deviations, resulting in gradually larger fluctuations in the output curve, thereby causing poor display effects.

[0026] The structure of the micro display system of the present application is described in detail below through multiple embodiments.

[0027] Figure 1 A schematic diagram of the structure of the micro display system provided in the embodiment of the present application; Figure 1 As shown, the micro display system 100 includes: a driving module 101 and an LCoS micro display module 102 .

[0028] Optionally, the micro-display system 100 may be a display device running on a liquid crystal on silicon micro-display screen such as AR, VR or MR, and may display holographic videos.

[0029] Continue to refer Figure 1As shown, the driving module 101 includes: a configuration module 103, a data reconstruction module 104 and a phase correction module 105, the output end of the configuration module 103 is connected to the input end of the data reconstruction module 104 and the phase correction module 105 respectively; the output end of the data reconstruction module 104 is connected to the input end of the phase correction module 105, and the output end of the phase correction module 105 is connected to the input end of the LCoS micro display module 102; The configuration module 103 is used to obtain the target reconstruction parameter and the target phase correction parameter indicated by the user, wherein the target reconstruction parameter is used to indicate the reconstruction strategy for the input data source, and the target phase correction parameter is used to indicate the phase correction method for the reconstructed data. Exemplarily, for example, if the reconstruction parameter input by the user is P1, the reconstruction strategy of the data source corresponding to the reconstruction parameter P1 is adopted to reconstruct the target data source to obtain the reconstructed data 1; if the reconstruction parameter input by the user is P2, the reconstruction strategy of the data source corresponding to the reconstruction parameter P2 is adopted to reconstruct the target data source to obtain the reconstructed data 2.

[0030] Similarly, if the phase correction parameter input by the user is Q1, the phase correction method corresponding to the phase correction parameter Q1 is used to perform phase correction processing on the reconstructed data 1 to obtain the phase-corrected data 1; if the phase correction parameter input by the user is Q2, the phase correction method corresponding to the phase correction parameter Q2 is used to perform reconstruction processing on the reconstructed data 1 to obtain the phase-corrected data 2. Therefore, in this embodiment, the configuration module can be used to select an optimal reconstruction strategy and phase correction method from the reconstruction strategies and phase correction methods of multiple data sources that are preset, and the input target data source is processed to obtain the corrected data, that is, to find the phase or grayscale curve of the output result of the liquid crystal material after the flip frequency reaches a certain value to meet the use requirements, thereby improving the linearity and stability of the output effect curve.

[0031] The data reconstruction module 104 is used to receive the target data source to be displayed, and reconstruct the target data source according to the target reconstruction parameters to obtain the reconstructed data, and send the reconstructed data to the phase correction module 105; wherein the target data source is a whole PWM wave of digital pixels at any gray scale after digitizing video sources with different resolutions and different gray scale depths.

[0032] It should be noted that this solution takes into account the above-mentioned problems of chips designed with analog pixel structures and the AB frame design idea, and proposes to adopt a digital pixel structure design, that is, a PWM drive method, which can avoid the AB frame problem. However, the PWM drive method itself is a level signal that changes constantly, which will cause fluctuations in the output curve. On this basis, it is proposed that the PWM wave of the digital pixel at any grayscale can be decomposed to obtain multiple local PWM waves, speed up the PWM flip frequency, and reduce the fluctuation of the output display phase curve or grayscale curve.

[0033] The phase correction module 105 is used to perform phase correction processing on the reconstructed data according to the target phase correction parameters to obtain phase-corrected data, and send the phase-corrected data to the LCoS micro display module.

[0034] The LCoS micro display module 102 is used to display the phase-corrected data.

[0035] In this embodiment, the data reconstruction module 104 is used to reconstruct the target data source according to the reconstruction strategy indicated by the target reconstruction parameter to obtain the reconstructed data, that is, the effective time portion in multiple local PWM waves at any gray scale, so that the reconstruction of the input target data source under the reconstruction strategy is completed. In order to obtain a more suitable phase curve, it is generally required that the number of gray scales or phases of the reconstructed data is greater than or equal to the number of gray scales or phases of the target data source. Therefore, this solution also needs to perform phase correction on the reconstructed data through the phase correction module 105 to obtain the data finally output to the LCoS micro display module 102, that is, the corrected data is displayed by the LCoS micro display module 102. Therefore, using the micro display system provided by this solution, the phase curve or gray scale curve of the output result displayed on the LCoS micro display module has better linearity and stability, that is, the fluctuation of the output curve is small, which solves the problem that the chip designed with analog pixel structure in the prior art has deviation accumulation, resulting in the fluctuation of the output curve gradually increasing, thereby causing poor display effect.

[0036] Optionally, the number of grayscales of the corrected data is c, and the number of grayscales of the reconstructed data is a*b, then c≤a*b, that is, the number of grayscales of the corrected data is less than or equal to the number of grayscales of the reconstructed data.

[0037] In summary, the embodiment of the present application provides a micro display system. In this scheme, the data reconstruction module decomposes an overall PWM wave of the input target data source at any gray scale into multiple local small PWM waves according to the reconstruction strategy of the data source indicated by the target reconstruction parameter, and determines the effective time portion in the multiple local small PWM waves, that is, obtains the reconstructed data; then, the phase correction module performs phase correction on the reconstructed data according to the phase correction method indicated by the target phase correction parameter, obtains the phase-corrected data, and sends the phase-corrected data to the LCoS display module for display. In this way, it is achieved that within the same period of time, under the premise of ensuring that the output display gray scale or phase is correct, the flipping frequency of the PWM wave of the target data source at any gray scale is accelerated, the fluctuation of the phase curve of the output result is reduced, the stability of the phase curve is improved, the display effect is improved, and the problem that the chip designed with analog pixel structure in the prior art has deviation accumulation, resulting in the gradual increase of the fluctuation of the output curve, and then causing poor display effect is solved.

[0038] The following embodiments will be used to explain in detail the process of determining the multiple reconstruction strategies pre-stored in the data reconstruction module.

[0039] Optionally, refer to Figure 2 As shown, the process of determining the reconstruction strategy of the data source includes: S201, obtaining PWM waves of each gray scale of a sample data source to be processed.

[0040] Optionally, the sample data source input in this solution is digital pixels after digitizing the video source. For example, if the sample data source is 8 bits, it can be determined that the sample data source includes 255 grayscales, that is, from 0-255, to obtain a complete PWM wave of the sample data source at each grayscale.

[0041] S202 , decomposing the PWM wave of each gray scale into multiple groups of PWM waves according to the target grouping method.

[0042] The grouping method is a*b, where a is the number of groups, b is the number of time shares, and each group of PWM waves includes: multiple time shares. For example, taking the data source as 8-bit 256 grayscale as an example, according to the 8x9 grouping method, the PWM wave of each grayscale is divided into 8 groups of local PWM waves, and the number of time shares contained in each group is 9, that is, a complete PWM wave of each grayscale is decomposed into 8x9 time shares.

[0043] For another example, taking the data source as 1280x720 resolution, 7-bit 128 grayscale as an example, according to the 4x9 grouping method, the PWM wave of each grayscale is decomposed into 4 groups of local PWM waves, and each group contains 9 time shares, that is, a complete PWM wave of each grayscale is decomposed into 4x9 time shares.

[0044] S203: Determine the weight value of each time portion in each group of PWM waves.

[0045] Optionally, it is also necessary to determine the weight value of each time portion in each group of PWM waves in turn according to the contribution ratio of each time portion in each group of PWM waves in the grayscale or phase finally displayed. Exemplarily, for example, continuing to divide the PWM waves under each grayscale into 8 groups of PWM waves, and each group of PWM waves contains 9 time portions, the weight of each time portion in each group of PWM waves is determined as follows: In the first group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the second group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the third group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the fourth group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the fifth group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the sixth group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the seventh group, the weights of time slots 1, 2, 3, 4, 6, 7, and 8 are 4, the weight of time slot 5 is 1, and the weight of time slot 9 is 2; In the eighth group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; According to the above, assuming that a_b represents the b-th time portion of the a-th group, where a and b are both integers greater than or equal to 1, the weight of each time portion in each group of 0 to 255 gray levels can be determined.

[0046] S204 , determining the effective time portions in each group of PWM waves of each gray scale in sequence according to the weight values ​​of each time portion in each group of PWM waves.

[0047] The sum of the effective time portions in each group of PWM waves of the gray scale is equal to the gray scale value under the gray scale.

[0048] To continue with the example, at gray scale 0, for example, the sum of the valid time portions in each group of PWM waves is 0, that is, at gray scale 0, all time portions are invalid.

[0049] At grayscale 1, the sum of the valid time portions in each group of PWM waves is 1. Combined with the weight value of each time portion in the above-mentioned groups of PWM waves, it can be determined that the time portion in the seventh group is 5 and the weight is 1, that is, at grayscale 1, the valid time portion is 7_5, and the remaining time portions are invalid.

[0050] At grayscale 2, the sum of the valid time portions in each group of PWM waves is 2. Combined with the weight values ​​of each time portion in each group of PWM waves, it can be determined that the weight of time portion 5 in the third group is 2, that is, at grayscale 2, the valid time portions are selected as 3_5, and the remaining time portions are invalid; It should be noted that, at grayscale 2, the weight values ​​of multiple time shares are all 2, that is, the time share with a weight of 2 in any group can be selected as the effective time share. However, in this solution, in order to make the effective time of each time share in each group as uniform as possible, therefore, at grayscale 2, the effective time share is selected as 3_5.

[0051] Similarly, at grayscale 3, the sum of the valid time shares in each group of PWM waves is 3. Combined with the weight values ​​of each time share in the above-mentioned groups of PWM waves, it can be determined that the weight of time share 5 in the first group is 2 and the weight of time share 5 in the fifth group is, that is, at grayscale 4, the valid time shares are 1_5 and 5_5, and the remaining time shares are invalid; and so on, the valid time shares in each group of PWM waves at each grayscale can be obtained.

[0052] S205 : Generate a reconstruction strategy corresponding to the target grouping method according to the effective time portions in each group of PWM waves of each gray scale.

[0053] Optionally, by determining the effective time portion in each group of PWM waves of each gray scale, a reconstruction strategy corresponding to the 8x9 grouping method can be obtained.

[0054] Similarly, by using the above processing steps, a reconstruction strategy corresponding to the 4x9 grouping method can also be obtained.

[0055] Optionally, refer to Figure 3 As shown, the above step S203 includes: S301 . Divide a plurality of grayscales into multiple grayscale groups according to a preset number of grayscale groups.

[0056] Exemplarily, for example, if the number of grayscale groups is 8 and the number of grayscales of the sample data source is 256, then the grayscales from 0 to 255 can be divided into 8 grayscale groups, that is, grayscales from 0 to 31 are the first group, grayscales from 32 to 63 are the second group, grayscales from 64 to 95 are the third group, grayscales from 96 to 127 are the fourth group, grayscales from 128 to 159 are the fifth group, grayscales from 160 to 191 are the sixth group, grayscales from 192 to 223 are the seventh group, and grayscales from 224 to 255 are the eighth group.

[0057] S302 , determining effective time portions in each group of PWM waves corresponding to each gray scale in each gray scale group according to the weights of each time portion in each group of PWM waves.

[0058] Optionally, the effective time shares in each group of PWM waves corresponding to each grayscale in the above-mentioned eight grayscale groups can be determined respectively according to the weight of each time share in each group of PWM waves, that is, the effective time shares in each group of PWM waves corresponding to grayscales 0 to 31 in the first group, the effective time shares in each group of PWM waves corresponding to grayscales 32 to 63 in the second group, and so on.

[0059] It is understandable that there are multiple situations for the effective time segments in each group of PWM waves corresponding to each gray scale in each gray scale group finally obtained. Therefore, in order to make the effective time of each time segment in each group as uniform as possible, an optimal reconstruction method can be selected from multiple situations.

[0060] Optionally, refer to Figure 4 As shown, the above step S302 includes: S401 , determining effective time portions in each group of PWM waves corresponding to each gray scale in a first gray scale group according to weights of each time portion in each group of PWM waves.

[0061] S402 , according to the effective time units in each group of PWM waves corresponding to each gray scale in the first gray scale group, iteratively determine the effective time units in each group of PWM waves corresponding to each gray scale in each gray scale group except the first gray scale group.

[0062] In an achievable manner, the above embodiment is continued to be introduced as an example. In order to speed up the processing efficiency, the effective time shares in each group of PWM waves corresponding to each gray scale in the first gray scale group, that is, the effective time shares in each group of PWM waves corresponding to gray scales 0 to 31, can be determined according to the weights of each time share in each group of PWM waves. Specifically, it is as follows: Grayscale 0: All time slots are invalid; 1 Grayscale: 7_5 is valid, and the rest of the time is invalid; 2 Grayscale: 3_5 is valid, and the rest of the time is invalid; 3 Grayscale: 3_5 and 7_5 are valid, and the rest of the time is invalid; 4 Grayscale: 1_5 and 5_5 are valid, and the rest of the time is invalid; 5 grayscale: 1_5, 5_5, 7_5 are valid, and the rest of the time are invalid; 6 Grayscale: 1_5, 3_5, 5_5 are valid, and the rest of the time are invalid; 7 grayscale: 1_5, 3_5, 5_5, 7_5 are valid, and the rest of the time are invalid; 8 grayscale: 2_5, 4_5, 6_5, 8_5 are valid, and the rest of the time are invalid; 9 Grayscale: 2_5, 4_5, 6_5, 7_5, 8_5 are valid, and the rest of the time are invalid; 10 grayscale: 2_5, 3_5, 4_5, 6_5, 8_5 are valid, and the rest of the time are invalid; 11 Grayscale: 2_5, 3_5, 4_5, 6_5, 7_5, 8_5 are valid, and the rest of the time are invalid; 12 grayscale: 1_5, 2_5, 4_5, 6_5, 8_5 are valid, and the rest of the time is invalid; 13 Grayscale: 1_5, 2_5, 4_5, 6_5, 7_5, 8_5 are valid, and the rest of the time are invalid; 14 Grayscale: 1_5, 2_5, 3_5, 4_5, 5_5, 6_5, 8_5 are valid, and the rest of the time are invalid; 15 grayscale: 1_5, 2_5, 3_5, 4_5, 5_5, 6_5, 7_5, 8_5 are valid, and the rest of the time are invalid; 16 grayscale: 1_9, 2_9, 3_9, 4_9, 5_9, 6_9, 7_9, 8_9 are valid, and the rest of the time is invalid; 17 Grayscale: 1_9, 2_9, 3_9, 4_9, 5_9, 6_9, 7_5, 7_9, 8_9 are valid, and the rest of the time are invalid; 18 grayscale: 1_9, 2_9, 3_5, 3_9, 4_9, 5_9, 6_9, 7_9, 8_9 are valid, and the rest of the time is invalid; 19 grayscale: 1_9, 2_9, 3_5, 3_9, 4_9, 5_9, 6_9, 7_5, 7_9, 8_9 are valid, and the rest of the time is invalid; 20 grayscale: 1_5, 1_9, 2_9, 3_9, 4_9, 5_5, 5_9, 6_9, 7_9, 8_9 are valid, and the rest of the time are invalid; 21 Grayscale: 1_5, 1_9, 2_9, 3_9, 4_9, 5_5, 5_9, 6_9, 7_5, 7_9, 8_9 are valid, and the rest of the time are invalid; 22 Grayscale: 1_5, 1_9, 2_9, 3_5, 3_9, 4_9, 5_5, 5_9, 6_9, 7_9, 8_9 are valid, and the rest of the time is invalid; 23 Grayscale: 1_5, 1_9, 2_9, 3_5, 3_9, 4_9, 5_5, 5_9, 6_9, 7_5, 7_9, 8_9 are valid, and the rest of the time are invalid; 24 grayscale: 1_9, 2_5, 2_9, 3_9, 4_5, 4_9, 5_9, 6_5, 6_9, 7_9, 8_5, 8_9 are valid, and the rest of the time is invalid; 25 Grayscale: 1_9, 2_5, 2_9, 3_9, 4_5, 4_9, 5_9, 6_5, 6_9, 7_5, 7_9, 8_5, 8_9 are valid, and the rest of the time are invalid; 26 Grayscale: 1_9, 2_5, 2_9, 3_5, 3_9, 4_5, 4_9, 5_9, 6_5, 6_9, 7_9, 8_5, 8_9 are valid, and the rest of the time are invalid; 27 Grayscale: 1_9, 2_5, 2_9, 3_5, 3_9, 4_5, 4_9, 5_9, 6_5, 6_9, 7_5, 7_9, 8_5, 8_9 are valid, and the rest of the time are invalid; 28 grayscale: 1_5, 1_9, 2_5, 2_9, 3_9, 4_5, 4_9, 5_5, 5_9, 6_5, 6_9, 7_9, 8_5, 8_9 are valid, and the rest of the time are invalid; 29 Grayscale: 1_5, 1_9, 2_5, 2_9, 3_9, 4_5, 4_9, 5_5, 5_9, 6_5, 6_9, 7_5, 7_9, 8_5, 8_9 are valid, and the rest of the time are invalid; 30 Grayscale: 1_5, 1_9, 2_5, 2_9, 3_5, 3_9, 4_5, 4_9, 5_5, 5_9, 6_5, 6_9, 7_9, 8_5, 8_9 are valid, and the rest of the time are invalid; 31 Grayscale: 1_5, 1_9, 2_5, 2_9, 3_5, 3_9, 4_5, 4_9, 5_5, 5_9, 6_5, 6_9, 7_5, 7_9, 8_5, 8_9 are valid, and the rest of the time are invalid; Then, based on the effective time fractions in each group of PWM waves corresponding to grayscales 0 to 31 in the first group, the effective time fractions in each group of PWM waves corresponding to grayscales 32 to 63 in the second group are determined as follows: Grayscale 32~63: On the basis of the valid time corresponding to grayscale 0~31, 1_4, 2_4, 3_4, 4_4, 5_4, 6_4, 7_4, and 8_4 are enabled at the same time, and the rest of the time are invalid; Similarly, the effective time corresponding to grayscales 32 to 63 in the second group continues to determine the effective time in each group of PWM waves corresponding to each grayscale in the remaining grayscale groups, as follows: Grayscale 64~95: On the basis of the valid time portions corresponding to grayscale 32~63, 1_8, 2_8, 3_8, 4_8, 5_8, 6_8, 7_8, and 8_8 are enabled at the same time, and the rest of the time portions are invalid; Grayscale 96~127: On the basis of the valid time portions corresponding to grayscale 64~95, 1_2, 2_2, 3_2, 4_2, 5_2, 6_2, 7_2, and 8_2 are enabled at the same time, and the rest of the time portions are invalid; Grayscale 128~159: On the basis of the valid time portions corresponding to grayscale 96~127, 1_6, 2_6, 3_6, 4_6, 5_6, 6_6, 7_6, and 8_6 are enabled at the same time, and the rest of the time portions are invalid; Grayscale 160~191: On the basis of the valid time corresponding to grayscale 128~159, 1_1, 2_1, 3_1, 4_1, 5_1, 6_1, 7_1, and 8_1 are enabled at the same time, and the rest of the time are invalid; Grayscale 192~223: On the basis of the valid time portions corresponding to grayscale 160~191, 1_7, 2_7, 3_7, 4_7, 5_7, 6_7, 7_7, and 8_7 are enabled at the same time, and the rest of the time portions are invalid; Grayscale 224-255: On the basis of the valid time portions corresponding to grayscale 192-223, 1_3, 2_3, 3_3, 4_3, 5_3, 6_3, 7_3, and 8_3 are enabled at the same time, and the rest of the time portions are invalid.

[0063] At this point, the rearrangement of the 256 gray levels of the 8-bit input data source is completed, that is, the reconstruction strategy corresponding to the 8x9 grouping method is generated. Specifically, refer to Figures 5 (a) to 5 (h), which are schematic diagrams of the arrangement of the reconstructed data obtained after the target data source is reconstructed using the reconstruction strategy corresponding to the 8x9 grouping method.

[0064] In Figure 5 (a), the first row indicates the groups, the second row indicates the time shares corresponding to each group, and the first column indicates the time shares under the group number corresponding to each grayscale from 0 to 255. Black indicates valid and white indicates invalid. It can be seen from Figures 5 (a), 5 (b), 5 (c), 5 (d), 5 (e), 5 (f), 5 (g) and 5 (h) that by adopting the above reconstruction strategy, a complete PWM wave under any grayscale driving digital pixels can be decomposed into multiple local PWM waves, thereby reducing the fluctuation of the output display phase curve and improving the stability of the phase curve.

[0065] Continuing with the example, another embodiment, specifically, can refer to FIG6 (a) and FIG6 (b), which are schematic diagrams of the arrangement of reconstructed data obtained after the data source is reconstructed using the reconstruction strategy corresponding to the 4x9 grouping method. In FIG6 (a) and FIG6 (b), the first row represents the group, the second row represents the number of time portions corresponding to each group, the first column represents the 128 gray levels from 0 to 127, and the time portion under the group number corresponding to each gray level. Black represents valid, and white represents invalid.

[0066] In this embodiment, a data source with a resolution of 1280x720 and 7-bit 128 grayscale is used as an example for explanation. The local PWM wave is composed of 4x9 time portions, which means that the number of groups is 4, and the number of time portions contained in each group is 9. The weights of each time portion in each group of PWM waves are as follows: In the first group, the weights of time slots 1, 2, 3, 4, 6, 7, and 8 are 4, the weight of time slot 5 is 1, and the weight of time slot 9 is 2; In the second group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the third group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; In the fourth group, the weight of time slots 1, 2, 3, 4, 6, 7, and 8 is 4, and the weight of time slots 5 and 9 is 2; According to the weights of each time component set above, assuming that c_d represents the dth time component of the cth group, where c and d are both integers greater than or equal to 1, the grayscales 0 to 127 are divided into 8 grayscale groups, that is, according to the weights of each time component in each group of PWM waves, the effective time components in each group of PWM waves corresponding to each grayscale group are determined, as follows: Grayscale 0: All time slots are invalid; 1 Grayscale: 1_5 are valid, and the rest of the time is invalid; 2 Grayscale: 3_5 is valid, and the rest of the time is invalid; 3 Grayscale: 1_5 and 3_5 are valid, and the rest of the time is invalid; 4 Grayscale: 2_5 and 4_5 are valid, and the rest of the time is invalid; 5 grayscale: 1_5, 2_5, 4_5 are valid, and the rest of the time is invalid; 6 Grayscale: 2_5, 3_5, 4_5 are valid, and the rest of the time is invalid; 7 grayscale: 1_5, 2_5, 3_5, 4_5 are valid, and the rest of the time is invalid; 8 grayscale: 1_9, 2_9, 3_9, 4_9 are valid, and the rest of the time is invalid; 9 grayscale: 1_5, 1_9, 2_9, 3_9, 4_9 are valid, and the rest of the time is invalid; 10 grayscale: 1_9, 2_9, 3_5, 3_9, 4_9 are valid, and the rest of the time is invalid; 11 Grayscale: 1_5, 1_9, 2_9, 3_5, 3_9, 4_9 are valid, and the rest of the time are invalid; 12 grayscale: 1_9, 2_5, 2_9, 3_9, 4_5, 4_9 are valid, and the rest of the time is invalid; 13 Grayscale: 1_5, 1_9, 2_5, 2_9, 3_9, 4_5, 4_9 are valid, and the rest of the time is invalid; 14 Grayscale: 1_9, 2_5, 2_9, 3_5, 3_9, 4_5, 4_9 are valid, and the rest of the time is invalid; 15 grayscale: 1_5, 1_9, 2_5, 2_9, 3_5, 3_9, 4_5, 4_9 are valid, and the rest of the time are invalid; Grayscale 16~31: On the basis of 0~15 valid time parts, 1_4, 2_4, 3_4, 4_4 are enabled at the same time, and the rest of the time parts are invalid; Grayscale 32~47: On the basis of 16~31 valid time parts, 1_8, 2_8, 3_8, and 4_8 are enabled at the same time, and the rest of the time parts are invalid; Grayscale 48~63: On the basis of 32~47 valid time parts, 1_2, 2_2, 3_2, and 4_2 are enabled at the same time, and the rest of the time parts are invalid; Grayscale 64~79: On the basis of 48~63 valid time parts, 1_6, 2_6, 3_6, and 4_6 are enabled at the same time, and the rest of the time parts are invalid; Grayscale 80~95: On the basis of 64~79 valid time parts, 1_1, 2_1, 3_1, and 4_1 are enabled at the same time, and the rest of the time parts are invalid; Grayscale 96~111: On the basis of 80~95 valid time parts, 1_7, 2_7, 3_7, and 4_7 are enabled at the same time, and the rest of the time parts are invalid; Grayscale 112~127: On the basis of valid time portions 96~111, 1_3, 2_3, 3_3, and 4_3 are enabled at the same time, and the rest of the time portions are invalid; At this point, the rearrangement of the 128 gray levels of the 7-bit input data source is completed, that is, the reconstruction strategy corresponding to the 4x9 grouping method is generated.

[0067] Similarly, it can be applied to more different practical needs. For any resolution, any grayscale or phase, this solution can be used to provide a design idea for reconstructing the data source using any preset reconstruction strategy, and combined with the liquid crystal response time for testing to determine the most appropriate number of groups and time portions, reduce the fluctuation of the output display phase curve, and improve the stability of the phase curve.

[0068] The above-mentioned Figure 1 The LCoS micro display module is introduced in detail.

[0069] Alternatively, if Figure 7 As shown above Figure 1 The LCoS micro display module includes: at least one digital pixel unit 701.

[0070] The digital pixel unit 701 is used to receive the phase-corrected data and light up or turn off according to the phase-corrected data.

[0071] In this embodiment, it is assumed that the resolution of the LCoS micro display module is 1920x1080, and the LCoS micro display module includes 1920x1080 digital pixel units, that is, each digital pixel unit corresponds to a pixel point, that is, a row in the 1080 rows is selected by a row selection signal, and a column in the 1920 columns is selected by a column drive signal (that is, phase-corrected data). Under the action of the phase-corrected data, the digital pixel unit at the intersection of the row and the column can be turned on or off.

[0072] Optionally, refer to Figure 8 As shown, the LCoS micro display module 102 further includes: a transmission protocol decoding module 801; The driving module 101 further includes: a storage module 802 and a transmission protocol coding module 803. The storage module 802 may be a memory space with a data storage function. The transmission protocol coding module 803 is a processing unit with a data coding function.

[0073] The input end of the storage module 802 is connected to the output end of the data reconstruction module 104, the output end of the storage module 802 is connected to the input end of the phase correction module 105, the output end of the phase correction module 105 is connected to the input end of the transmission protocol encoding module 803, the output end of the transmission protocol encoding module 803 is connected to the input end of the transmission protocol decoding module 801, and the output end of the transmission protocol decoding module 801 is connected to the input end of each digital pixel unit.

[0074] In this embodiment, the storage module 802 is used to receive and store the reconstructed data sent by the data reconstruction module 104; The phase correction module 105 is further used to read the reconstructed data in the storage module 802, perform phase correction processing on the reconstructed data according to the target phase correction parameters sent by the configuration module 103, obtain phase-corrected data, and send the phase-corrected data to the transmission protocol encoding module 803; The transmission protocol encoding module 803 is used to receive the phase-corrected data, encode the phase-corrected data, and send the encoded data to the transmission protocol decoding module 801. Exemplarily, for example, the transmission protocol encoding module 803 can encode the phase-corrected data using an interface protocol encoding method to obtain the encoded data. In this way, packet loss of the phase-corrected data can be avoided, the delay of data transmission can be reduced, and the data transmission efficiency can be improved.

[0075] The transmission protocol decoding module 801 is used to decode the encoded data to obtain phase-corrected data; and send the phase-corrected data to each digital pixel unit.

[0076] The specific structure of the above digital pixel unit will be introduced through the following embodiments.

[0077] Optionally, refer to Fig. 9 As shown, the digital pixel unit includes: at least one pixel circuit 901; the connection mode of each pixel circuit includes: series connection or parallel connection.

[0078] Exemplarily, for example, the digital pixel unit includes: two pixel circuits, that is, the connection mode of the two pixel circuits can be in series or in parallel. Optionally, the pixel circuit is a static random access memory (SRAM) with a storage function.

[0079] Continue to refer Fig. 9 As shown, the pixel circuit 901 is used to receive the corrected data. If the corrected data is 1, the pixel circuit 901 is lit up under the effect of the corrected data; if the corrected data is 0, the pixel circuit 901 is extinguished under the effect of the corrected data.

[0080] Optionally, continue to refer to Fig. 9 As shown, taking a digital pixel unit including a pixel circuit as an example, the specific structure of the pixel circuit is introduced.

[0081] The pixel circuit 901 includes: a first transistor m1, a second transistor m2, a third transistor m3, a fourth transistor m4, a first inverter, a second inverter and a glass plate C p ; The first end of the first triode m1 is used to access the phase-corrected data (i.e., the column drive signal), and the second end of the first triode m1 is used to access the row selection signal; the third end of the first triode m1 is respectively connected to one end of the first inverter, one end of the second inverter, and the second end of the third triode m3; The other end of the first inverter is respectively connected to the first end of the second transistor m2, the other end of the second inverter, and the second end of the fourth transistor m4, the second end of the second transistor m2 is connected to access the row selection signal, and the third end of the second transistor m2 is connected to access the phase-corrected data (i.e., the column drive signal); The first end of the third triode m3 is used to connect to the first reference voltage V1, and the third end of the third triode m3 is connected to the third end of the fourth triode m4 and the glass plate C p One end of the connection; The first end of the fourth transistor is used to connect to the second reference voltage V1, and the glass plate C p The other end is used to access the third reference voltage VCOM.

[0082] Optionally, each pixel circuit is a pixel circuit composed of a dual inverter and a plurality of MOS tubes to form an SRAM structure with a single-bit storage function. Fig. 9 In the example, a pixel circuit in which one SRAM corresponds to one pixel may be used. A pixel circuit in which two SRAMs correspond to one pixel may be used. The two SRAMs may be connected in series or in parallel.

[0083] For data sources with different grayscales or phases, the method of achieving different phases or brightness is as follows: PWM waves with different duty cycles are used in each time portion to achieve the lighting time difference of the pixels whose SRAM data is 1 in the time portion. Each effective time portion in each group of decomposed local PWM waves is input as a column driving signal to the (1) port and (2) port of the two inverters. If the driving data (i.e., the corrected data) is 1, then the (1) port is 1 and the (2) port is 0, the transistor m3 is turned on and the transistor m4 is turned off, and the voltage connected to the corresponding pixel electrode is high, and the pixel circuit is lit; If the driving data (i.e. the corrected data) is 0, then the (1) ports of the two inverters are both 0, and the (2) ports of the two inverters are both 1, the transistor m3 is turned off, and the transistor m4 is turned on, and the voltage connected to the corresponding pixel electrode is low, and the pixel circuit is extinguished. In this way, the PWM high and low voltages are reflected on the corresponding pixel electrodes during this period, and then combined with the VCOM connected to the glass plate, the voltage difference between the two finally realizes the brightness or darkness of the pixel.

[0084] Optionally, PWM waves with different duty cycles are used in each time portion. That is, the key point proposed in this solution is to find a combination of total PWM duty cycles corresponding to certain grayscale or phase data sources, and these combinations are valid in the single-bit time portions corresponding to them, thereby realizing the PWM decomposition modulation method.

[0085] At the same time, it is necessary to ensure that the light and dark time of each row of the entire screen is consistent. Each pixel circuit may include 2 SRAMs to ping-pong receive and display single-bit data of each time portion.

[0086] Optionally, in practical applications, for different resolutions, different grayscale depths, colorization methods, output interface types, pixel arrangement types, etc., specific driving circuits are required to implement them.

[0087] Optionally, refer to Fig.10 As shown, the present application also provides a display method, which is run on the micro display system provided in the above embodiment, and the method includes: S1001. Receive a target data source to be displayed.

[0088] S1002: Receive target reconstruction parameters and target phase correction parameters input by a user.

[0089] S1003: Reconstruct the target data source according to the target reconstruction parameters to obtain reconstructed data.

[0090] S1104 , performing phase correction on the reconstructed data according to the target phase correction parameter to obtain phase-corrected data.

[0091] S1105 , displaying the phase-corrected data on the LCoS micro-display module in the micro-display system.

[0092] In this embodiment, after the target data source to be displayed is obtained, two configuration parameters input by the user, namely, the target reconstruction parameter and the target phase correction parameter, are received. The target data source is first reconstructed according to the reconstruction strategy indicated by the target reconstruction parameter to obtain reconstructed data, that is, the PWM wave of the digital pixel at any gray scale is decomposed to obtain multiple local PWM waves, so as to accelerate the flipping frequency of the PWM and reduce the fluctuation of the output display phase curve or the gray scale curve; then, the reconstructed data is phase corrected according to the phase correction method indicated by the target phase correction parameter to obtain phase-corrected data, and the phase-corrected data is sent to the LCoS micro display module for display, that is, the phase curve or gray scale curve of the output result displayed on the LCoS micro display module has better linearity and stability, that is, the fluctuation of the output curve is small, which solves the problem that the chip designed with analog pixel structure in the prior art has deviation accumulation, resulting in the fluctuation of the output curve gradually increasing, thereby causing poor display effect.

[0093] In this way, it is achieved that within the same period of time, under the premise of ensuring that the output display grayscale or phase is correct, the flipping frequency of the PWM wave of the target data source at any grayscale is accelerated, the fluctuation of the phase curve of the output result is reduced, the stability of the phase curve is improved, and the display effect is improved. This solves the problem of deviation accumulation in chips designed with analog pixel structures in the prior art, which causes the fluctuation of the output curve to gradually increase, thereby causing poor display effect.

[0094] Optionally, refer to Fig.11 As shown, the present application also provides an LCoS micro display device 1101, the LCoS micro display device 1101 includes: the micro display system 100 provided in the above embodiment, the LCoS micro display device can be AR or VR glasses, which can realize the display of holographic videos.

[0095] Optionally, the present application also provides a program product, such as a computer-readable storage medium, including a program, which is used to execute the above method embodiment when executed by a processor.

[0096] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0097] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0098] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0099] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to perform some steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access memory (English: Random Access Memory, referred to as: RAM), disk or optical disk and other media that can store program codes.

Claims

1. A micro display system, characterized in that: The system comprises: a driving module and a liquid crystal on silicon micro display module; The driving module comprises: a configuration module, a data reconstruction module and a phase correction module, wherein the output end of the configuration module is connected to the input end of the data reconstruction module and the input end of the phase correction module respectively; the output end of the data reconstruction module is connected to the input end of the phase correction module, and the output end of the phase correction module is connected to the input end of the liquid crystal on silicon micro display module; The configuration module is used to obtain a target reconstruction parameter and a target phase correction parameter indicated by a user, wherein the target reconstruction parameter is used to indicate a reconstruction strategy for an input data source, and the target phase correction parameter is used to indicate a phase correction method for reconstructed data; The data reconstruction module is used to receive a target data source to be displayed, and reconstruct the target data source according to the target reconstruction parameter to obtain reconstructed data, and send the reconstructed data to the phase correction module; The phase correction module is used to perform phase correction processing on the reconstructed data according to the target phase correction parameter to obtain phase-corrected data, and send the phase-corrected data to the LCOS microdisplay module; The liquid crystal on silicon micro display module is used to display the phase-corrected data.

2. The system according to claim 1, characterized in that The process of determining the reconstruction strategy of the data source includes: Obtaining PWM waves of each grayscale of the sample data source to be processed; According to the target grouping method, the PWM waves of each grayscale are decomposed into multiple groups of PWM waves, wherein the grouping method is a*b, wherein a is the number of groups, b is the number of time portions, and each group of PWM waves includes: multiple time portions; Determine the weight value of each time portion in each group of PWM waves; According to the weight value of each time portion in each group of PWM waves, the effective time portion in each group of PWM waves of each gray scale is determined in sequence; wherein the sum of the effective time portions in each group of PWM waves of the gray scale is equal to the gray scale value of the gray scale; A reconstruction strategy corresponding to the target grouping method is generated according to the effective time portion in each group of PWM waves of each gray scale.

3. The system according to claim 2, characterized in that The step of sequentially determining the effective time portions in each group of PWM waves of each grayscale according to the weight value of each time portion in each group of PWM waves comprises: Dividing the plurality of grayscales into multiple grayscale groups according to a preset number of grayscale groups; According to the weight of each time portion in each group of PWM waves, the effective time portion in each group of PWM waves corresponding to each gray scale in each gray scale group is determined.

4. The system according to claim 3, characterized in that The determining, according to the weight of each time portion in each group of PWM waves, the effective time portion in each group of PWM waves corresponding to each gray scale in each gray scale group comprises: Determine, according to the weight of each time portion in each group of PWM waves, the effective time portion in each group of PWM waves corresponding to each gray scale in the first gray scale group; According to the effective time fractions in each group of PWM waves corresponding to each gray scale in the first gray scale group, the effective time fractions in each group of PWM waves corresponding to each gray scale in each gray scale group except the first gray scale group are iteratively determined in sequence.

5. The system according to claim 1, characterized in that The liquid crystal on silicon micro display module includes: at least one digital pixel unit; The digital pixel unit is used to receive the phase-corrected data and light up or turn off under the action of the phase-corrected data.

6. The system according to claim 5, characterized in that The liquid crystal on silicon micro display module also includes: a transmission protocol decoding module; The driving module also includes: a storage module and a transmission protocol encoding module; The input end of the storage module is connected to the output end of the data reconstruction module, the output end of the storage module is connected to the input end of the phase correction module, the output end of the phase correction module is connected to the input end of the transmission protocol encoding module, the output end of the transmission protocol encoding module is connected to the input end of the transmission protocol decoding module, and the output end of the transmission protocol decoding module is connected to the input end of each of the digital pixel units; The storage module is used to receive and store the reconstructed data sent by the data reconstruction module; The phase correction module is further used to read the reconstructed data in the storage module, perform phase correction processing on the reconstructed data according to the target phase correction parameters sent by the configuration module to obtain phase-corrected data, and send the phase-corrected data to the transmission protocol encoding module; The transmission protocol encoding module is used to receive the phase-corrected data, encode the phase-corrected data, and send the encoded data to the transmission protocol decoding module; The transmission protocol decoding module is used to decode the encoded data, obtain and display the phase-corrected data; and send the phase-corrected data to the digital pixel unit.

7. The system according to claim 5, characterized in that The digital pixel unit includes: at least one pixel circuit; the connection mode of each pixel circuit includes: series connection or parallel connection; The pixel circuit is used to receive the corrected data. If the corrected data is 1, the pixel circuit is lit up under the effect of the corrected data; if the corrected data is 0, the pixel circuit is extinguished under the effect of the corrected data.

8. The system according to claim 7, characterized in that The pixel circuit comprises: a first triode, a second triode, a third triode, a fourth triode, a first inverter, a second inverter and a glass plate; The first ends of the first three transistors are used to access the phase-corrected data, and the second ends of the first three transistors are used to access the row selection signal; the third ends of the first three transistors are respectively connected to one end of the first inverter, one end of the second inverter, and the second end of the third triode; The other end of the first inverter is respectively connected to the first end of the second transistor, the other end of the second inverter, and the second end of the fourth transistor, the second end of the second transistor is connected to access the row selection signal, and the third end of the second transistor is connected to access the phase-corrected data; The first end of the third triode is used to access the first reference voltage, and the third end of the third triode is respectively connected to the third end of the fourth triode and one end of the glass plate; The first end of the fourth transistor is used to connect to the second reference voltage, and the other end of the glass plate is used to connect to the third reference voltage.

9. A display method, characterized in that: Applied to the micro display system according to any one of claims 1 to 8, the method comprising: Receive a target data source to be displayed; receiving a target reconstruction parameter and a target phase correction parameter input by a user; Reconstructing the target data source according to the target reconstruction parameter to obtain reconstructed data; Performing phase correction on the reconstructed data according to the target phase correction parameter to obtain phase-corrected data; The phase-corrected data is displayed on a liquid crystal on silicon micro-display module in the micro-display system.

10. A liquid crystal on silicon micro display device, characterized in that: The liquid crystal on silicon micro display device comprises: a micro display system as described in any one of claims 1-8.

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