Multi-primary-color field-sequential-color display apparatus based on quantum dots

Abstract

A multi-primary-color field-sequential-color display apparatus based on quantum dots. The apparatus comprises a liquid crystal module and a backlight module, wherein the backlight module is arranged directly behind the liquid crystal module, and comprises a plurality of light-emitting units and dimming structures each corresponding to a light-emitting unit, each dimming structure comprising a collimation structure corresponding to each light-emitting device in the corresponding light-emitting unit. A collimation structure is arranged for each light-emitting device in each light-emitting unit, such that each light-emitting unit in a backlight module can be fully collimated, thereby improving the light emission uniformity. The full width at half maximum of the spectrum of each light-emitting device in the backlight module is within a first preset range, such that the color purity of display can be improved as much as possible while ensuring that metamerism occurs effectively, thereby improving a display color gamut. Moreover, the number of primary colors of each light-emitting unit in the backlight module is not less than 4; and in combination with a corresponding dimming structure, the display color gamut can be further improved without affecting the light emission uniformity, thereby achieving a better display effect.

Description

Multi-primary color field color sequential display device based on quantum dots

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 7, 2024, with application number 202410260260.6 and invention name “Multi-primary color field color sequential display device based on quantum dots”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a multi-primary color field color sequence display device based on quantum dots. Background Art

[0003] Traditional LCDs consist of a backlight, liquid crystals, and color filters. However, the color filters filter out approximately two-thirds of the light emitted by the LCD. To improve the light efficiency of LCDs, the color filters can be removed from the LCD (Liquid Crystal Display) and the traditional white backlight LED (Light-Emitting Diode) array can be replaced with a rapidly flashing RGB (Red, Green, and Blue) LED array. Based on the principle of temporal color mixing, when the RGB backlight array flashes quickly enough, the human eye's persistence of vision creates a color image on the retina. This type of display is called a field-sequential LCD.

[0004] With the development of display technology, manufacturers of field color sequential displays are also relentlessly pursuing display effects with a wider color gamut to enhance people's viewing experience. Currently, in order to increase the width of the color gamut, the color purity of the light-emitting device can be increased or more primary color light-emitting units can be used. However, if the color purity is adjusted too high to achieve the desired color gamut, it is easy to cause the display's metamerism to fail. And light-emitting units composed of more primary colors will result in poor light uniformity. Therefore, when existing field color sequential displays increase the color gamut width to the expected level, it is difficult to guarantee the display effect.

[0005] Summary of the Invention

[0006] The purpose of this application is to solve at least one of the above-mentioned technical defects, especially the technical defect in the prior art that the existing field color sequential display is difficult to ensure the display effect of the display when the color gamut width is increased to the expected level.

[0007] The present application provides a multi-primary color field color sequential display device based on quantum dots, the device comprising a liquid crystal module and a backlight module;

[0008] The backlight module is placed directly behind the liquid crystal module, and the backlight module includes a plurality of light-emitting units and a dimming structure corresponding to each light-emitting unit, and the dimming structure includes a collimating structure corresponding to each light-emitting device in the light-emitting unit;

[0009] The backlight module is used to provide a light source for the liquid crystal module; wherein the half-peak width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4;

[0010] The liquid crystal module is used to determine a field color sequence algorithm in a preset algorithm library, and to regulate the display content of the liquid crystal module according to the field color sequence algorithm.

[0011] In one embodiment, the dimming structure further includes a free-form surface dimming device; and the collimating structures in the dimming structure corresponding to the light-emitting devices of the light-emitting unit are placed inside the free-form surface dimming device.

[0012] In one embodiment, the first predetermined range is greater than 20 nanometers and less than 80 nanometers.

[0013] In one embodiment, the refresh rate of the liquid crystal module is not less than N times the number of primary colors of the light-emitting units of the backlight module, wherein the number of primary colors of each light-emitting unit in the backlight module is equal, and N is equal to 60.

[0014] In one embodiment, each light-emitting unit in the backlight module uses QLED (Quantum Dot Light-Emitting Diodes) as a light-emitting material and adopts an electroluminescent light-emitting method.

[0015] In one embodiment, each light-emitting unit in the backlight module uses LED particles and a photoluminescent quantum dot layer as light-emitting materials and adopts a photoluminescent light-emitting method.

[0016] In one embodiment, the LED particles are used to provide a light source; the photoluminescent quantum dot layer is used to convert the light emitted by the LED particles into light having a corresponding saturation within a second preset range; wherein the second preset range is a range of saturation corresponding to the half-peak width of the spectrum within the first preset range.

[0017] In one embodiment, the process of controlling the display content of the liquid crystal module according to the field color sequential algorithm includes:

[0018] The liquid crystal module obtains preset display parameters, determines a display adjustment strategy based on the field color sequential algorithm and the display parameters, and generates a liquid crystal signal according to the display adjustment strategy to adjust the display content of the liquid crystal module; wherein the liquid crystal signal includes a driving voltage corresponding to each pixel in the display screen of the liquid crystal module.

[0019] In one embodiment, the algorithm library includes a 240Hz-Stencil algorithm, a 240Hz-LPD (local primary color desaturation) algorithm, a 240Hz-Edge-Stencil algorithm, and a 240Hz-RGB algorithm.

[0020] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0021] The present application provides a quantum dot-based multi-primary color field sequential display device. The device includes a liquid crystal module and a backlight module. The backlight module is positioned directly behind the liquid crystal module. The backlight module includes multiple light-emitting units and a dimming structure corresponding to each light-emitting unit. The dimming structure includes a collimation structure corresponding to each light-emitting device in the light-emitting unit. The collimation structure is provided for each light-emitting device in the light-emitting unit, thereby fully collimating each light-emitting unit in the backlight module and improving the uniformity of light output. The backlight module is used to provide light for the liquid crystal module. The half-maximum width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than four. In this way, by limiting the half-maximum width of the spectrum of each light-emitting device in the backlight module, the color purity is improved while not affecting the metamerism phenomenon of the field sequential display, thereby improving the display color gamut. Moreover, using light-emitting units with four or more primary colors and configuring corresponding specific dimming structures can further improve the display color gamut without affecting light output uniformity, thereby achieving better display effects.

[0022] Furthermore, the liquid crystal module included in the present application can be used to control the display content of the liquid crystal module according to the field color sequential algorithm to reduce the phenomenon of color separation during the display process, thereby further improving the display effect of the field color sequential display. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0024] FIG1 shows a schematic structural diagram of a general system of a link library according to an embodiment of the present application;

[0025] FIG2 shows a hardware structure block diagram of a mobile terminal according to a method for controlling a general system for executing a link library provided in an embodiment of the present application;

[0026] FIG3 is a schematic flow chart showing a method for controlling a universal system of a link library according to an embodiment of the present application;

[0027] FIG4 shows a schematic diagram of the software logic of the universal system of the link library according to the present application;

[0028] FIG5 shows a structural block diagram of a control device of a universal system of a link library provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In the following embodiments, the present application provides a multi-primary color field sequential display device based on quantum dots. For ease of description, the following embodiments refer to the multi-primary color field sequential display device based on quantum dots as a field color sequential display.

[0031] As shown in FIG1 , the present application provides a multi-primary color field color sequential display device based on quantum dots, the device comprising a liquid crystal module and a backlight module;

[0032] The backlight module is placed directly behind the liquid crystal module. The backlight module includes a plurality of light-emitting units and a dimming structure corresponding to each light-emitting unit. The dimming structure includes a collimating structure corresponding to each light-emitting device in the light-emitting unit.

[0033] The backlight module is used to provide a light source for the liquid crystal module; wherein the half-maximum width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4;

[0034] The liquid crystal module is used to determine the field color sequence algorithm in a preset algorithm library, and to regulate the display content of the liquid crystal module according to the field color sequence algorithm.

[0035] The number of primary colors in a light-emitting unit can be understood as the number of light-emitting devices contained in the light-emitting unit. The constituent materials of the light-emitting unit include a quantum dot layer. Furthermore, each light-emitting unit in the backlight module has the same number of primary colors. The arrangement of the light-emitting devices in each light-emitting unit is consistent.

[0036] In this embodiment, each light-emitting unit corresponds to a dimming structure, and the dimming structure includes a collimating structure corresponding to each light-emitting device in the corresponding light-emitting unit. It is understood that before setting the dimming structure, it is necessary to first determine the number and primary colors of the light-emitting unit, and then design a collimating structure for each light-emitting device in the light-emitting unit to obtain the dimming structure. Based on this, multiple dimming structures are set up and each dimming structure is applied to each light-emitting unit in the backlight module. In one embodiment, the collimating structure can be a free-form lens used to change the angular distribution of the light-emitting devices so that the light-emitting devices can be fully collimated under the action of the dimming structure.

[0037] Generally speaking, since the main color of each light-emitting device in the light-emitting unit is different, a corresponding collimation structure can be designed according to factors such as the arrangement position and main color of each light-emitting device in the light-emitting unit to change the angular distribution of the light-emitting device so that each light-emitting device can be fully collimated under the action of the dimming structure. At this time, the deviation and diffusion during the propagation process can be reduced, thereby improving the uniformity of the light output.

[0038] At the same time, the backlight module controls the half-width of the spectrum of each light-emitting device therein to be within a first preset range. By setting the half-width of the spectrum of each light-emitting device within a certain range, when the half-width of the spectrum of each light-emitting device is within the first preset range, the color purity of the field color sequential display is higher than the color purity of the existing display using LED as the backlight light source, and at the same time, it will not affect the metamerism of the field color sequential display. Among them, metamerism refers to the phenomenon that different spectral stimuli can produce the same visual response. When the metamerism of the field color sequential display fails, it will affect the color accuracy and color uniformity of the field color sequential display.

[0039] When the backlight module provides the backlight source, the LCD module needs to determine the field color sequence algorithm from the algorithm library. Based on this algorithm, it controls the LCD module's display content to achieve the specified content and the desired display effect. The algorithm library includes multiple field color sequence algorithms. Field color sequence algorithms are used to improve details in signal processing and color rendering, thereby reducing color shift and separation.

[0040] Specifically, the field color sequence algorithm in the algorithm library can be determined by random selection or according to a preset selection rule, which is not specifically limited in this application.

[0041] It is understandable that the half-maximum width of the spectrum of the light-emitting device is limited, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4. In this way, the color purity can be improved as much as possible while ensuring that the metamerism phenomenon of the field color sequential display is effective, thereby improving the color gamut width of the field color sequential display. In this process, due to the excessive number of primary colors of the light-emitting unit, the uniformity of the light emitted by the light-emitting unit will be affected. Therefore, an additional collimation structure can be set for each light-emitting device in the light-emitting unit so that each light-emitting device can be fully collimated under the action of the dimming structure. Thereby improving the uniformity of the light emitted by the light-emitting unit, and ultimately achieving an increase in the display color gamut without affecting the uniformity of the light output, and achieving a better display effect.

[0042] The present application provides a quantum dot-based multi-primary color field sequential display device. The device includes a liquid crystal module and a backlight module. The backlight module is positioned directly behind the liquid crystal module. The backlight module includes multiple light-emitting units and a dimming structure corresponding to each light-emitting unit. The dimming structure includes a collimation structure corresponding to each light-emitting device in the light-emitting unit. The collimation structure is provided for each light-emitting device in the light-emitting unit, thereby fully collimating each light-emitting unit in the backlight module and improving the uniformity of light output. The backlight module is used to provide light for the liquid crystal module. The half-maximum width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than four. In this way, by limiting the half-maximum width of the spectrum of each light-emitting device in the backlight module, the color purity is improved while not affecting the metamerism phenomenon of the field sequential display, thereby improving the display color gamut. Moreover, using light-emitting units with four or more primary colors and configuring corresponding specific dimming structures can further improve the display color gamut without affecting light output uniformity, thereby achieving better display effects.

[0043] Furthermore, the liquid crystal module included in the present application can be used to control the display content of the liquid crystal module according to the field color sequential algorithm to reduce the phenomenon of color separation during the display process, thereby further improving the display effect of the field color sequential display.

[0044] In one embodiment, the dimming structure further includes a free-form surface dimming device; and the collimating structures corresponding to the light-emitting devices of the light-emitting unit in the dimming structure are placed inside the free-form surface dimming device.

[0045] Among them, the free-form surface dimming device is a device for controlling the intensity and distribution of light, which can be used in conjunction with the collimating structure to adjust the angular distribution of the light-emitting device, thereby achieving that each light-emitting device can be fully collimated under the action of the dimming structure.

[0046] In this embodiment, a free-form surface reflector can be used as a free-form surface dimming device. The dimming structure includes the free-form surface dimming device and collimating structures corresponding to the light-emitting devices of the light-emitting unit. The collimating structures corresponding to the light-emitting devices of the light-emitting unit are placed in the free-form surface dimming device. Through the cooperation between the free-form surface dimming device and the collimating structures corresponding to the light-emitting devices of the light-emitting unit, each light-emitting device in the light-emitting unit can be fully collimated.

[0047] It is understandable that in the process of improving the color gamut, the large number of primary colors in the light-emitting unit may lead to poor light uniformity in the light-emitting unit. Therefore, an additional collimation structure can be provided for each light-emitting device in the light-emitting unit to ensure that each light-emitting device can be fully collimated under the action of the dimming structure. This will improve the uniformity of the light emitted by the light-emitting unit, ultimately achieving an increase in the display color gamut without affecting the light uniformity, and achieving a better display effect.

[0048] In an example, it is assumed that the light-emitting unit is composed of a red electroluminescent QLED, a blue electroluminescent QLED, a green electroluminescent QLED and a yellow electroluminescent QLED, as shown in Figures 2 and 3. Figure 2 is a top view of the structural schematic diagram of the dimming structure in an example provided by an embodiment of the present application, and Figure 3 is a front view of the structural schematic diagram of the dimming structure in an example provided by an embodiment of the present application.

[0049] In Figure 2, the outer circle is a reflector, which in this example can be used as a free-form surface dimming device. R represents a red QLED, G represents a green QLED, B represents a blue QLED, and Y represents a yellow QLED. t represents a frame time. In this example, multiple QLEDs can be referred to as QLEDs, and the collimation structure corresponding to the light-emitting device is the additional collimation structure shown in the figure.

[0050] In FIG3 , the substrate can be understood as a part of the backlight module. For the rest of the description, please refer to the above description of FIG2 .

[0051] It should be noted that Figures 2 and 3 only provide schematic diagrams of a dimming structure related to this solution. The specific arrangement of light-emitting devices, light-emitting units, and light-emitting device materials can be determined based on actual conditions. For example, the light-emitting device array can be arranged in the manner shown in Figure 2 or in a strip arrangement. The additional collimating structure can be a refractive optical device, a reflective optical device, or a combination of reflective and refractive optical devices. This application does not impose specific limitations on this.

[0052] In one embodiment, the first predetermined range is greater than 20 nanometers and less than 80 nanometers.

[0053] In this embodiment, the first preset range can be set to be greater than 20 nanometers and less than 80 nanometers. Within this range, the color purity of the field color sequential display is higher than that of existing displays using LEDs as backlight light sources. At the same time, the metamerism phenomenon of the field color sequential display is not lost due to an overly narrow spectrum, thereby improving the display effect of the field color sequential display.

[0054] In one embodiment, the refresh rate of the liquid crystal module is not less than N times the number of primary colors of the light-emitting units of the backlight module, wherein the number of primary colors of each light-emitting unit in the backlight module is equal, and N is equal to 60.

[0055] In this embodiment, the number of primary colors for each light-emitting unit in the backlight module is no less than four. The increase in primary colors also places certain requirements on the refresh rate of the field color sequential display. If the refresh rate of the liquid crystal module is too low, problems such as delayed color updates may occur. Therefore, it is necessary to limit the refresh rate of the liquid crystal module to avoid affecting the display quality of the field color sequential display due to the low refresh rate.

[0056] In one embodiment, each light-emitting unit in the backlight module uses QLED as the light-emitting material and adopts an electroluminescent light-emitting method.

[0057] QLED stands for quantum light-emitting diode. Quantum light-emitting diodes contain a layer of quantum dots, a type of nanoscale semiconductor material.

[0058] In this embodiment, the principle of electroluminescence is based on the process in which a material undergoes electron transition after being excited by a voltage, releasing energy and generating photons.

[0059] In one example, as shown in FIG4 , FIG4 is one of the schematic diagrams of a frame image of a field color sequential display in one example provided by an embodiment of the present application.

[0060] In Figure 4, the frame image consists of four fields: red (R), blue (B), yellow (Y), and green (G). Based on the principle of temporal color mixing, the four color fields of red, blue, yellow, and green flash quickly within one frame time, and through the visual persistence effect of the human eye, a color image is formed on the retina.

[0061] In this example, if the half-maximum widths of the red, blue, yellow, and green spectra are all set to 50 nanometers, the possible color coordinates are R (0.68, 0.32), G (0.15, 0.69), B (0.13, 0.06), and Y (0.51, 0.49). The NTSC (National Television System Committee) color gamut is NTSC-115%.

[0062] It is understood that in another example, one or more of red, blue, yellow, and green can be replaced with other colors to obtain a new embodiment, such as magenta, cyan, and other colored lights. Moreover, the number of primary colors is not limited to four; new embodiments can be obtained by adding more primary colors.

[0063] In one embodiment, each light-emitting unit in the backlight module uses LED particles and a photoluminescent quantum dot layer as light-emitting materials and adopts a photoluminescent light-emitting method.

[0064] LED particles refer to light-emitting devices made of light-emitting diodes. A photoluminescent quantum dot layer is a special material layer containing nanoscale semiconductor particles called quantum dots. Quantum dots are semiconductor particles that exhibit quantum size effects and are typically nanometer-sized. When these quantum dots are excited by light, they produce photoluminescence, releasing photons and producing luminescence.

[0065] In this embodiment, photoluminescence refers to a process in which a substance releases photons and generates luminescence after being excited by light.

[0066] In one example, as shown in FIG5 , FIG5 is a second schematic diagram of a frame image of a field color sequential display in one example provided by an embodiment of the present application.

[0067] In Figure 5, the frame image consists of six fields of red (R), green (G), blue (B), cyan (C), magenta (M), and yellow (Y). The corresponding quantum dots in the photoluminescent quantum dot layer can convert the light emitted by the LED particles into highly saturated light corresponding to the quantum dots.

[0068] It is understood that the LED array composed of LED particles can be a single-color LED array or a multi-primary-color LED array. The photoluminescent quantum dot layer includes four or more colors. For example, red, green, blue, cyan, magenta, and yellow; or combinations of red, green, blue, cyan, and yellow, etc. This application does not impose specific limitations on this.

[0069] In one embodiment, LED particles are used to provide a light source; and the photoluminescent quantum dot layer is used to convert the light emitted by the LED particles into light having a corresponding saturation within a second preset range.

[0070] The second preset range is a saturation range corresponding to the half-peak width of the spectrum within the first preset range.

[0071] In this embodiment, when the backlight module's light-emitting units use LED particles and a photoluminescent quantum dot layer as luminescent materials, employing a photoluminescent light-emitting method, the LED particles provide the light source, while the quantum dots in the photoluminescent quantum dot layer convert the light emitted by the LED particles into light corresponding to the quantum dots, with a high degree of saturation. Thus, the combination of LED particles and the photoluminescent quantum dot layer optimizes the display effects of a field-sequential color display.

[0072] In one embodiment, the process of controlling the display content of the liquid crystal module according to the field color sequence algorithm includes:

[0073] The liquid crystal module obtains preset display parameters, determines a display adjustment strategy based on a field color sequence algorithm and the display parameters, and generates a liquid crystal signal according to the display adjustment strategy to adjust the display content of the liquid crystal module; wherein the liquid crystal signal includes a driving voltage corresponding to each pixel in the display screen of the liquid crystal module.

[0074] Display parameters include various parameters or settings related to display effects, including but not limited to brightness, contrast, color temperature, color saturation, etc.

[0075] In this embodiment, a field color sequential algorithm and display parameters are used to generate a display adjustment policy that conforms to the display parameters. Furthermore, the field color sequential algorithm can reduce color separation by increasing the display refresh rate or optimizing the pixel arrangement structure, thereby improving display quality and stability. It is understood that color separation refers to the appearance of color discontinuities or separation on a display in high-speed motion scenarios.

[0076] In one embodiment, the algorithm library includes a 240Hz-Stencil algorithm, a 240Hz-LPD algorithm, a 240Hz-Edge-Stencil algorithm, and a 240Hz-RGB algorithm.

[0077] It is understandable that the algorithm library mainly includes field color sequential algorithms at a 240Hz refresh rate. In one example, the algorithm library may also include similar algorithms at other refresh rates, such as the 180Hz Stencil algorithm, the 180Hz LPD algorithm, the 180Hz Edge Stencil algorithm, the 120Hz Stencil algorithm, the 120Hz LPD algorithm, and so on.

[0078] Finally, it should be noted that, in this article, relational terms such as first and second are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element. In this article, the singular forms "a," "an," and "said / the" may also include plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprise," "comprising," or "having" specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0079] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referenced to each other.

[0080] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-primary color field color sequential display device based on quantum dots, characterized in that: The device includes a liquid crystal module and a backlight module; The backlight module is placed directly behind the liquid crystal module, and the backlight module includes a plurality of light-emitting units and a dimming structure corresponding to each light-emitting unit, and the dimming structure includes a collimating structure corresponding to each light-emitting device in the light-emitting unit; The backlight module is used to provide a light source for the liquid crystal module; wherein the half-peak width of the spectrum of each light-emitting device in the backlight module is within a first preset range, and the number of primary colors of each light-emitting unit in the backlight module is not less than 4; The liquid crystal module is used to determine a field color sequence algorithm in a preset algorithm library, and to regulate the display content of the liquid crystal module according to the field color sequence algorithm.

2. The quantum dot-based multi-primary color field color sequential display device according to claim 1, characterized in that: The dimming structure further includes a free-form surface dimming device; and the collimating structures in the dimming structure corresponding to the light-emitting devices of the light-emitting unit are placed inside the free-form surface dimming device.

3. The quantum dot-based multi-primary color field color sequential display device according to claim 1, characterized in that: The first preset range is greater than 20 nanometers and less than 80 nanometers.

4. The quantum dot-based multi-primary color field color sequential display device according to claim 1, characterized in that: The refresh rate of the liquid crystal module is not less than N times the number of primary colors of the light-emitting units of the backlight module, wherein the number of primary colors of each light-emitting unit in the backlight module is equal, and N is equal to 60.

5. The quantum dot-based multi-primary color field color sequential display device according to claim 1, characterized in that: Each light-emitting unit in the backlight module uses QLED as the light-emitting material and adopts an electroluminescent light-emitting method.

6. The quantum dot-based multi-primary color field color sequential display device according to claim 1, characterized in that: Each light-emitting unit in the backlight module uses LED particles and a photoluminescent quantum dot layer as light-emitting materials and adopts a photoluminescent light-emitting mode.

7. The quantum dot-based multi-primary color field color sequential display device according to claim 6, characterized in that: The LED particles are used to provide a light source; the photoluminescent quantum dot layer is used to convert the light emitted by the LED particles into light with a corresponding saturation within a second preset range; wherein the second preset range is a range of saturation corresponding to the half-peak width of the spectrum within the first preset range.

8. The quantum dot-based multi-primary color field color sequential display device according to any one of claims 1 to 7, characterized in that: The process of the liquid crystal module for regulating the display content of the liquid crystal module according to the field color sequence algorithm includes: The liquid crystal module obtains preset display parameters, determines a display adjustment strategy based on the field color sequential algorithm and the display parameters, and generates a liquid crystal signal according to the display adjustment strategy to adjust the display content of the liquid crystal module; wherein the liquid crystal signal includes a driving voltage corresponding to each pixel in the display screen of the liquid crystal module.

9. The quantum dot-based multi-primary color field color sequential display device according to claim 1, characterized in that: The algorithm library includes a 240Hz-Stencil algorithm, a 240Hz-LPD algorithm, a 240Hz-Edge-Stencil algorithm and a 240Hz-RGB algorithm.

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