CN106910449B - Silicon-based display based on fusion scanning strategy - Google Patents
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Abstract
The invention discloses a silicon-based display based on a fusion scanning strategy, which relates to the technical field of microelectronic flat panel display, wherein the brightness of a pixel in a specific display frame is jointly determined by the amplitude of the output current or voltage of the pixel in the display frame and the time duty ratio of the output current or voltage of the pixel in the display frame; the specific display frame is divided into a plurality of sub-frames, and the sub-frames comprise a process of transmitting a specific subset of the gray scale information of the pixels in the specific display area to the pixels through the driving circuit via the interface. The invention reduces the precision requirements of the digital-to-analog converter and the pixel circuit, and improves the conversion precision and conversion speed of the digital-to-analog converter; the limitation of the resolution and refresh rate of the silicon-based micro-display due to the limitation of a scanning driving mode is broken through; the area requirements of the digital-to-analog converter and the pixel unit circuit are reduced, and the area and the complexity of the circuit are reduced, so that the pixel density can be further improved; the number of gray scales and the contrast of the pixel can be improved.
Description
Technical Field
The invention relates to the technical field of microelectronics and flat panel display, in particular to a silicon-based micro-display based on a fusion scanning strategy.
Background
A silicon-based microdisplay is a microdisplay that uses a silicon semiconductor integrated circuit as a substrate, and a driving circuit of the display is integrated in the silicon substrate. According to different display principles, silicon-based micro-displays can be divided into silicon-based organic light-emitting micro-displays, silicon-based light-emitting diode micro-displays, silicon-based liquid crystal micro-displays, silicon-based micro-mechanical micro-displays and the like. The pixels of the silicon-based micro display are very small, and the silicon-based micro display can generate a large-screen display effect through an optical system and can be applied to military, industrial, medical and consumer electronics. Currently, silicon-based microdisplays are evolving in the direction of higher resolution, higher gray scale levels, and higher refresh rates.
The pixel driving mode of the silicon-based micro-display can be divided into two strategies of analog amplitude modulation and digital pulse width modulation. In the analog amplitude modulation strategy, the brightness of the pixel is proportional to the voltage or current passing through the pixel, and as the display resolution and refresh rate increase, the display requires higher signal conversion speed of the digital-to-analog converter in the driving circuit and the pixel circuit, but at the same time, the analog quantity has high enough precision and high pixel brightness contrast. Compared with analog amplitude modulation, the digital pulse width modulation strategy controls the lighting time of the pixel by utilizing the duty ratio of the pixel voltage or current so as to control the brightness of the pixel, generates different gray levels, and has the advantages of high precision, low image noise, high pixel contrast, high gray level and lower requirements on circuit characteristics. However, at high resolution and high refresh rate, the digital scanning strategy requires extremely high data bandwidth, posing a higher challenge to system performance.
Therefore, those skilled in the art are dedicated to develop a silicon-based microdisplay based on a merged scan strategy, in which two strategies, analog amplitude modulation and digital pulse width modulation, are mixed to achieve an optimal balance between required data bandwidth and precision brightness.
Disclosure of Invention
Aiming at the technical defects of an analog amplitude modulation driving strategy and a digital pulse width modulation driving strategy of a silicon-based micro-display, the invention provides the silicon-based micro-display based on a fusion scanning strategy, which is used for reducing the requirements of the analog amplitude modulation driving strategy on a digital-to-analog converter and a pixel circuit on analog quantity precision, improving the conversion speed of the digital-to-analog converter and improving the contrast of pixel brightness.
In order to achieve the purpose, the invention has the following conception: the pixel is driven to emit light by adopting a mode of combining an analog amplitude modulation driving strategy and a digital pulse width modulation driving strategy, the brightness of the pixel is jointly determined by the amplitude of output current or voltage of the pixel in a subframe and the time duty ratio of the output current or voltage of the pixel in the subframe, a frame of image is divided into a plurality of different digital subframes and analog subframes, the digital subframes adopt the digital driving strategy, the time proportional driving mode or the brightness proportional driving mode is adopted, the analog subframes adopt the analog driving strategy, a digital-to-analog converter with more quantity and less digit number is adopted, input data are converted into the amplitude quantity of the voltage or the current to enable the pixel to emit light, and the analog subframes and the digital subframes are combined to generate a final display frame. Because of adopting the digital pulse width modulation driving mode, for the same display resolution and gray scale, the digit of the digital-to-analog converter is reduced, and the requirement for the precision of the analog quantity is reduced, the precision of the output voltage or current of the pixel circuit is higher, and the conversion speed of the digital-to-analog converter is also improved.
According to the invention concept, the invention adopts the following technical scheme:
a silicon-based micro display based on a fusion scanning strategy at least comprises a semiconductor silicon substrate, pixels on the surface of the silicon substrate, a driving circuit and an interface, wherein the driving circuit is contained in the silicon substrate and at least comprises a metal-oxide semiconductor field effect transistor and at least two metal layers; (2) the brightness of the pixel in a specific display frame is determined by the amplitude of the output current or voltage of the pixel in the display frame and the time duty ratio of the output current or voltage of the pixel in the display frame; the display frame comprises a process of transmitting pixel gray scale information in a specific display area to the pixels through the interface by the driving circuit; (3) the specific display frame is further divided into a plurality of sub-frames, and the sub-frames comprise a process of transmitting a specific subset of pixel gray scale information in a specific display area to the pixels through the interface by the driving circuit; (4) the drive circuit comprises circuitry for generating the magnitude of the output current or voltage of the pixel within a particular display frame and the temporal duty cycle of the output current or voltage of the pixel within that display frame.
Furthermore, in any subframe, the brightness of the pixel is determined by the amplitude of the output current or voltage of the pixel in the subframe and the time duty ratio of the output current or voltage of the pixel in the subframe, and the brightness of the pixel in the specific display frame is equivalent to the average brightness of all subframes of the pixel in the specific display frame.
Further, the process is a sequential transmission process or a random transmission process, the sequential transmission refers to that the gray scale information is transmitted point by point in sequence from row to column or from column to row, and the random transmission refers to that the gray scale information is transmitted randomly in sequence from random row or random column.
Furthermore, the specific subset is one or more bit planes of the pixel gray scale data in the specific display area, the bit planes are data sets of the pixel gray scale data in the specific display area with the same bits, the gray scale data are data representing the brightness degree of the pixel light, and the bits are weights with carry rules.
Furthermore, the way of dividing the specific display frame into sub-frames is determined by the display mode, which includes the method of combining several sub-frames into a complete display frame in different time sequences and different sub-frame types, and the setting method of the time length and the maximum common brightness value of each sub-frame, the maximum common brightness value refers to the maximum brightness value that can be reached by the pixel in the sub-frame, and the value is not dependent on the gray scale information of the pixel, but is determined by the display mode and the driving circuit.
Further, in any conventional sub-frame for producing effective light emission, the luminance of the pixel is constant, which means that the luminance of the pixel in the sub-frame has a unique value, but the variation of the luminance due to an undesired slight variation of current and/or voltage caused by an environmental factor such as circuit external interference, internal crosstalk, oscillation, parasitics, ripples, capacitance leakage, device degradation, temperature variation, etc. is out of the range described herein.
Furthermore, the sub-frame may be further divided into a plurality of repeated frames, the repeated frames include a process of repeatedly transmitting the same gray scale information to the pixels, the gray scale information transmitted by each repeated frame is completely the same as the information to be transmitted by the sub-frame to which the repeated frame belongs, the sum of the time lengths of all the repeated frames in each sub-frame is equal to the total time length of the sub-frame, and the time sequences of the repeated frames belonging to different sub-frames are sequentially or randomly arranged in one display frame.
Furthermore, the specific display frame comprises at least one first-type subframe and/or at least one second-type subframe; the first type of sub-frame is characterized in that the pixels within the sub-frame have only two states, light or dark; the second type of sub-frame is characterized in that the pixels in the sub-frame have more than two gray scales, and the gray scales are the proportion of the actual brightness values of the pixels to the maximum possible brightness values.
Furthermore, P first-class subframes and Q second-class subframes are arranged in any time sequence in one display frame, and the maximum gray scale number of the pixel is (2)P)*(S1)*(S2)*…*(SQ) In which S isQThe number of gray scales of the Q-th sub-frame of the second type.
Furthermore, the specific display frame may further include a plurality of subframes of the first type, and the time lengths of the subframes of the first type are T, T × S, T × S from small to large2、……、T*SN-1Wherein, T is a basic time length, N is the number of the first type subframes, S is 2 or other positive numbers greater than 1, and the brightness values of the pixels in the first type subframes are equal when the pixels are in a bright state.
Furthermore, the specific display frame may further include a plurality of subframes of the first type, and the luminances of the pixels in the subframes of the first type are L, L × S, L × S from small to large2、……、L*SN-1Wherein L is the basic brightness, N is the number of the first type subframes, S is 2 or other positive numbers greater than 1, and the time lengths of the first type subframes are equal.
Furthermore, the specific display frame may further include a plurality of second-type sub-frames, a time length of the plurality of second-type sub-frames is described by a specific subset of the gray scale information corresponding to the pixel, and a brightness value of the pixel in the plurality of second-type sub-frames at the maximum brightness is equal, the specific subset is a specific data represented by a plurality of bits in the binary gray scale data, and the description is a linear or non-linear proportional relationship between the description object and the described object.
Furthermore, the specific display frame may further include a plurality of second-type sub-frames, the luminance of the pixel in the plurality of second-type sub-frames is described by a specific subset of the gray scale information corresponding to the pixel, and the time lengths of the plurality of second-type sub-frames are equal, the specific subset is a specific data represented by a plurality of bits in binary gray scale data, and the description is a linear or non-linear proportional relationship between the description object and the described object.
Furthermore, the specific display frame may further include a third type of sub-frame, wherein all the pixels in the sub-frame always do not emit light, and the third type of sub-frame is used for correcting the average brightness of the pixels in the display frame so as to adjust the gray scale amount or improve the gray scale linearity.
Compared with the prior art, the invention has the following obvious substantive characteristics and obvious advantages:
(1) compared with the traditional analog amplitude modulation driving strategy, the invention reduces the precision requirements of the digital-to-analog converter and the pixel circuit, and improves the conversion precision and the conversion speed of the digital-to-analog converter;
(2) compared with the traditional digital pulse width modulation driving strategy, the invention reduces the requirement of the circuit scanning speed, reduces the redundant waiting time, improves the scanning efficiency, and further breaks through the limitation of the scanning driving mode on the resolution and the refresh rate of the silicon-based micro-display;
(3) compared with the traditional drive circuit of the silicon-based micro display, the invention reduces the area requirements of the digital-to-analog converter and the pixel unit circuit, and reduces the area and the complexity of the circuit, thereby further improving the pixel density;
(4) compared with the traditional silicon-based micro-display technology, the invention can improve the gray scale level number and the contrast of the pixel.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a basic block diagram of a silicon-based microdisplay in accordance with a preferred embodiment of the invention;
FIG. 2 is a diagram of a silicon-based microdisplay display frame drive waveform in accordance with a preferred embodiment of the invention;
FIG. 3 is a diagram of a sub-frame drive waveform for a silicon-based microdisplay in accordance with a preferred embodiment of the invention;
FIG. 4 is a schematic diagram of a pixel data arrangement and bit plane according to a preferred embodiment of the present invention;
FIG. 5 is a diagram of a sub-frame repeat frame drive waveform for a silicon-based microdisplay in accordance with a preferred embodiment of the invention;
FIG. 6 is a waveform diagram of the first-type sub-frame and the third-type sub-frame hybrid driving according to a preferred embodiment of the present invention;
FIG. 7 is a waveform diagram of the first-type sub-frame and the third-type sub-frame hybrid driving according to another preferred embodiment of the present invention;
FIG. 8 is a waveform diagram of the second and third sub-frame types according to a preferred embodiment of the present invention;
FIG. 9 is a waveform diagram of the second and third sub-frame types according to another preferred embodiment of the present invention;
FIG. 10 is a waveform diagram of the first type sub-frame, the second type sub-frame and the third type sub-frame for driving in a hybrid manner according to a preferred embodiment of the present invention;
fig. 11 is a waveform diagram of the first-type sub-frame, the second-type sub-frame and the third-type sub-frame according to another preferred embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention are described below with reference to the accompanying drawings:
the first embodiment is as follows:
fig. 1 illustrates a basic structure of a silicon-based microdisplay, the upper portion of which is a side view and the lower portion of which is a top view, and the silicon-based microdisplay at least includes a semiconductor silicon substrate 01, a pixel 02 on the surface of the silicon substrate, a driving circuit 03 and an interface 04, wherein the driving circuit 03 at least includes a metal-oxide semiconductor field effect transistor and at least two metal layers; the brightness of the pixel 02 in a specific display frame is determined by the amplitude of the output current or voltage of the pixel in the display frame and the time duty ratio of the output current or voltage of the pixel in the display frame; the display frame includes a process of transmitting the gray scale information of the pixels in the specific display area to the pixels 02 through the interface 04 by the driving circuit 03; the specific display frame is further divided into sub-frames, which comprise the process of transmitting a specific subset of the gray scale information of the pixels in a specific display area to the pixels 02 via the interface 04 by means of the driving circuit 03. The driver circuit 03 comprises circuitry for generating the amplitude of the output current or voltage of the pixel 02 within a particular display frame and the temporal duty cycle of the output current or voltage of the pixel within that display frame.
Fig. 2 is an example of a display frame driving waveform diagram of the silicon-based microdisplay, each display frame includes two driving modes of amplitude driving and duty ratio driving, and the driving variable is current or voltage.
Fig. 3 is an example of a waveform diagram of display sub-frame driving of the silicon-based microdisplay, where four display sub-frames A, B, C, D are amplitude driving, duty driving, amplitude driving, and duty driving, respectively, and a driving variable is current or voltage.
Example two:
this embodiment is substantially the same as the first embodiment, and is characterized in that:
in any subframe, the brightness of the pixel is determined by the amplitude of the output current or voltage of the pixel in the subframe and the time duty ratio of the output current or voltage of the pixel in the subframe, and the brightness of the pixel in the specific display frame is equivalent to the average brightness of all subframes of the pixel in the specific display frame.
The process is a sequential transmission process or a random transmission process, the sequential transmission refers to that the gray information is transmitted point by point in sequence from row to column or from column to row, and the random transmission refers to that the gray information is transmitted randomly in the sequence of random row or random column.
The specific subset is one or more bit planes of the pixel gray scale data in the specific display area, the bit planes are data sets of the pixel gray scale data in the specific display area with the same bit, the gray scale data are data representing the brightness degree of the pixel light, and the bit is a weight with a carry rule. A schematic of the pixel data arrangement and bit plane is shown in fig. 4.
The way in which the specific display frame is divided into sub-frames is determined by the display mode, which includes the way in which several sub-frames are combined into one complete display frame in different time sequences and different sub-frame types, and the way in which the time length of each sub-frame and the maximum common brightness value, which refers to the maximum brightness value that the pixel 02 can reach within a sub-frame, are set, which is independent of the gray scale information of the pixel 02, and are determined by the display mode and the driving circuit 03.
In any conventional sub-frame used to produce effective light emission, the brightness of the pixel is constant, which means that the brightness of the pixel in the sub-frame has a unique value, but the brightness variation due to undesired small variations in current and/or voltage caused by environmental factors such as circuit external disturbances, internal crosstalk, oscillation, parasitics, ripples, capacitive leakage, device degradation, temperature variations, etc. is outside the ranges described herein.
Example three:
this embodiment is substantially the same as the first embodiment, and is characterized in that:
the sub-frame may be further divided into a plurality of repeated frames, the repeated frames include a process of repeatedly transmitting the same gray scale information to the pixel 02, the gray scale information transmitted by each repeated frame is completely the same as the information to be transmitted by the sub-frame to which the repeated frame belongs, the sum of the time lengths of all the repeated frames in each sub-frame is equal to the total time length of the sub-frame, and the time sequences of the repeated frames belonging to different sub-frames are sequentially or randomly arranged in one display frame. FIG. 5 is an example of a waveform diagram for displaying sub-frame repeat frame driving in a silicon-based microdisplay, and comprises two sets of repeat frames A1/A2 and B1/B2, wherein A1 and A2 are repeat frames of sub-frame A, and B1 and B2 are repeat frames of sub-frame B, and the content and transmission of each set of repeat frames are identical. The total length of a1 and a2 is the length of subframe a, and the total length of B1 and B2 is the length of subframe B. The time sequence of A1, A2, B1 and B2 can be randomly arranged.
Example four:
this embodiment is substantially the same as the first embodiment, and is characterized in that:
the specific display frame comprises at least one first-type subframe and/or at least one second-type subframe; the first type of sub-frame is characterized in that the pixels within the sub-frame have only two states, light or dark; the second type of sub-frame is characterized in that the pixels in the sub-frame have more than two gray scales, and the gray scales are the proportion of the actual brightness values of the pixels to the maximum possible brightness values.
The specific display frame also comprises a third type of sub-frame, and the third type of sub-frame is characterized in that all pixels in the sub-frame do not emit light all the time and are used for correcting the average brightness of the pixels in the display frame so as to adjust the gray scale number or improve the gray scale linearity.
Example five:
this embodiment is substantially the same as the fourth embodiment, and is characterized in that:
the specific display frame comprises a plurality of first type subframes, and the time lengths of the plurality of first type subframes are T, T × S, T × S from small to large2、……、T*SN-1Wherein, T is a basic time length, N is the number of the first type subframes, S is 2 or other positive numbers greater than 1, and the brightness values of the pixels in the first type subframes are equal when the pixels are in a bright state. The above-mentionedAn example of a first-type sub-frame and a third-type sub-frame mixed driving waveform is shown in fig. 6, where S is 2.
Example six:
this embodiment is substantially the same as the fourth embodiment, and is characterized in that:
the specific display frame comprises a plurality of first type subframes, and the brightness of pixels in the first type subframes is L, L S and L S from small to large2、……、L*SN-1Wherein L is the basic brightness, N is the number of the first type sub-frames, S is 2 or other positive numbers greater than 1, and the time lengths of the first type sub-frames are equal, an example of the first type sub-frame and the third type sub-frame mixed driving waveform is shown in FIG. 7, where S is 2.
Example seven:
this embodiment is substantially the same as the fourth embodiment, and is characterized in that:
the specific display frame comprises a plurality of second-class subframes, the time lengths of the second-class subframes are described by specific subsets of gray scale information corresponding to pixels, the brightness values of the second-class subframes at the maximum brightness of the pixels are equal, the specific subsets are specific data represented by a plurality of bits in binary gray scale data, and the description is a linear or nonlinear proportional relation between a description object and the described object. An example of the second-type sub-frame and third-type sub-frame mixed driving waveform is shown in fig. 8.
Example eight:
this embodiment is substantially the same as the fourth embodiment, and is characterized in that:
the specific display frame comprises a plurality of second-class subframes, the brightness of pixels in the second-class subframes is described by a specific subset of the gray scale information corresponding to the pixels, the time length of the second-class subframes is equal, the specific subset is specific data represented by a plurality of bits in binary gray scale data, and the description is a linear or non-linear proportional relation between a description object and the described object. An example of the second-type sub-frame and third-type sub-frame mixed driving waveform is shown in fig. 9.
Example nine:
this embodiment is substantially the same as the fourth embodiment, and is characterized in that:
p first-class subframes and Q second-class subframes are arranged in an arbitrary time sequence in one display frame, and the maximum gray scale number of pixels is (2)P)*(S1)*(S2)*…*(SQ) In which S isQThe number of gray scales of the Q-th sub-frame of the second type.
Fig. 10 illustrates a first-type subframe, a second-type subframe, and a third-type subframe, where P is 4, Q is 1, and SQ is 4, the first-type subframe is as described in embodiment five, and the second-type subframe is as described in embodiment eight.
Fig. 11 illustrates another hybrid driving waveform diagram of subframes of the first type, the second type and the third type, where P is 4, Q is 1 and SQ is 4, the subframes of the first type are as described in embodiment six, and the subframes of the second type are as described in embodiment seven.
Still further, more combinations of subframes of the first type, the second type and the third type may be generated, P, Q, SQMore combinations may be taken with the purpose of generating different average intensities for representing different gray levels, and the present embodiment is not exhaustive.
In other instances, well-known methods, procedures, systems, components, and/or circuits have been described at a relatively high-level, without detail, in order to avoid unnecessarily obscuring aspects of the present disclosure. The foregoing examples set forth numerous specific details to provide a thorough understanding of the present invention, but are merely examples of the invention for a clear understanding and are not to be construed as limiting the embodiments. It will be apparent to those skilled in the art that various changes and modifications can be made in the above-described embodiments, or that the disclosure may be practiced without these specific details. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (13)
1. A silicon-based display with digital-analog fusion driving is characterized in that the silicon-based display at least comprises a semiconductor silicon substrate, pixels on the surface of the silicon substrate, a driving circuit and an interface, wherein the driving circuit is contained in the silicon substrate and at least comprises a metal-oxide semiconductor field effect transistor and at least two metal layers; the brightness of the pixel in a display frame is jointly determined by the amplitude of the output current or voltage of the pixel in the display frame and the time duty ratio of the output current or voltage of the pixel in the display frame; the display frame comprises a process of transmitting pixel gray scale information in a display area to the pixel through the interface by the driving circuit; each display frame comprises two driving modes of amplitude driving and duty ratio driving; the display frame is further divided into a plurality of sub-frames, and the sub-frames comprise a process of transmitting a subset of pixel gray scale information in a display area to the pixels through the interface by the driving circuit; in any subframe, the brightness of a pixel is determined by the amplitude of the output current or voltage of the pixel in the subframe and the time duty ratio of the output current or voltage of the pixel in the subframe, and the brightness of the pixel in the display frame is equal to the average brightness of all subframes of the pixel in the display frame; the display frame comprises at least one first-type subframe and/or at least one second-type subframe; the drive circuit comprises a circuit for generating the amplitude of the output current or voltage of the pixel within a display frame and the time duty cycle of the output current or voltage of the pixel within the display frame.
2. The silicon-based display of claim 1, wherein the process is a sequential transmission process or a random transmission process, the sequential transmission process means that the gray scale information is transmitted point by point in a row-to-column or column-to-row order, and the random transmission process means that the gray scale information is transmitted randomly in a random row or random column order.
3. The silicon-based display of claim 1, wherein the subset is one or more bit planes of pixel gray scale data in the display region, the bit planes are data sets of pixel gray scale data in the display region having the same bits, the gray scale data is data representing brightness levels of light emitted by pixels, and the bits are weights having carry rules.
4. The silicon-based display of claim 1, wherein the sub-frame division of the display frame is determined by the display mode, the display mode comprises a combination of sub-frames in different time sequences and different sub-frame types into a complete display frame, and a setting method of the time length of each sub-frame and the maximum common luminance value, the maximum common luminance value refers to the maximum luminance value that can be achieved by the pixel in the sub-frame, and the maximum common luminance value is determined by the display mode and the driving circuit independent of the gray scale information of the pixel.
5. The silicon-based display of claim 1, wherein the luminance of the pixel is constant during any sub-frame used to generate the effective emission, the constant being that the luminance of the pixel within the sub-frame has a unique value.
6. The silicon-based display of claim 1, wherein the sub-frames are divided into a plurality of repeating frames, the repeating frames comprise a process of repeatedly transmitting the same gray scale information to the pixels, the gray scale information transmitted by each repeating frame is identical to the information to be transmitted by the sub-frame to which the repeating frame belongs, the sum of the time lengths of all the repeating frames in each sub-frame is equal to the total time length of the sub-frame, and the time sequence of the repeating frames belonging to different sub-frames is arranged in a display frame sequentially or randomly.
7. The silicon-based display of claim 1, wherein the first type of sub-frame is characterized by pixels within the sub-frame having only a bright or dark state; the second type of sub-frame is characterized in that the pixels in the sub-frame have more than two gray scales, and the gray scales are the proportion of the actual brightness values of the pixels to the maximum possible brightness values.
8. The silicon-based display of claim 1, wherein the display frame further comprises a third type of sub-frame, wherein all pixels in the sub-frame are always non-illuminated for correcting the average brightness of the pixels in the display frame to adjust the amount of gray scale or improve the linearity of the gray scale.
9. The silicon-based display of claim 8, wherein the display frame comprises a plurality of subframes of a first type, the time length of the plurality of subframes of the first type is T, T × S, T × S2, … …, T × SN-1 from small to large, where T is a basic time length, N is the number of the plurality of subframes of the first type, S is 2 or other positive number greater than 1, and the luminance values of the pixels in the plurality of subframes of the first type in the bright state are equal.
10. The silicon-based display of claim 8, wherein the display frame comprises a plurality of subframes of a first type, the luminance of the pixels in the subframes of the first type is L, L × S, L × S2, … …, L × SN-1 from small to large, wherein L is the basic luminance, N is the number of the subframes of the first type, S is 2 or other positive number greater than 1, and the time lengths of the subframes of the first type are equal.
11. The silicon-based display of claim 8, wherein the display frame comprises a plurality of subframes of the second type, the time length of the plurality of subframes of the second type is described by a subset of the gray scale information corresponding to the pixels, and the brightness value of the pixels in the plurality of subframes of the second type at the maximum brightness is equal, the subset is data represented by a plurality of bits in gray scale data represented by binary, and the description is a linear or non-linear proportional relationship between the description object and the object to be described.
12. The silicon-based display of claim 8, wherein the display frame comprises a plurality of second-type sub-frames, the luminance of the pixels in the second-type sub-frames is described by a subset of the gray scale information corresponding to the pixels, and the time lengths of the second-type sub-frames are equal, the subset is data represented by a plurality of bits in binary gray scale data, and the description is a linear or non-linear proportional relationship between the description object and the object to be described.
13. The silicon-based display of claim 8, wherein the display frame has P first-type sub-frames and Q second-type sub-frames, the P first-type sub-frames and the Q second-type sub-frames are arranged in any order in time, and the maximum number of gray scales of the pixels is (2P) × (S1) × (S2) × … (SQ), wherein S1 is the number of gray scales of the 1 st second-type sub-frame, S2 is the number of gray scales of the 2 nd second-type sub-frame, and SQ is the number of gray scales of the Qth second-type sub-frame.
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