Display module and display device

By setting up a dimming layer in the HUD display module and using dual concentrating technology, the problem of difficult to meet the high transmittance requirements in the prior art is solved, and the light exit angle and brightness requirements are reduced, thereby reducing power consumption and improving thermal management.

CN119596604AActive Publication Date: 2025-03-11WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202411978189.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-11
Estimated Expiration
2044-12-30

AI Technical Summary

Technical Problem

Existing HUD display devices are difficult to meet the demand for high transmittance, resulting in an increase in the brightness demand for backlight modules, thereby increasing the difficulty of power consumption and thermal management.

Method used

By setting a dimming layer between the display panel and the backlight module in the display module, double light concentration is performed using the first lens film and the second lens film to significantly reduce the light exit angle, thereby improving the transmittance of the small-angle light and reducing the brightness requirement of the backlight module.

Benefits of technology

The light exit angle is greatly reduced, the transmittance of small angle light is improved, the brightness requirement of the display module for the backlight module is reduced, the power consumption is reduced, and the thermal management of the display device is conducive to the thermal management.

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Abstract

The invention relates to a display module and a display device. The display module comprises a display panel, a backlight module and a dimming layer. The display panel comprises a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer arranged between the first substrate and the second substrate; the backlight module is arranged on the side, away from the second substrate, of the first substrate. The dimming layer is arranged on the side, facing the display panel, of the backlight module, the dimming layer comprises a first lens film used for receiving light, and the direction from the backlight module to the display panel is configured to be the light receiving direction of the first lens film; the display panel further comprises a second lens film used for receiving light, the second lens film is located between the first substrate and the second substrate, and the direction from the first substrate to the second substrate is configured to be the light receiving direction of the second lens film.
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Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a display module and a display device. Background Art

[0002] With the increasing demand for interactive experience of display information and intelligent driving, as well as the popularization of AR (full name in English: Augmented Reality, Chinese abbreviation: Augmented Reality) technology, the market prospect of HUD (full name in English: Head-Up Display, Chinese abbreviation: Head-Up Display) technology is becoming more and more broad. The current HUD display devices can provide portable navigation and customized display content, bringing convenience to drivers. High-transmittance HUD display devices can not only provide consistent display effects under various lighting conditions, but also reduce the overall backlight brightness requirements, thereby reducing power consumption and facilitating the thermal management of HUD display devices. Existing HUD display devices include LCD display screens and backlight modules. Lenses are usually added to the backlight modules to achieve focusing and brightening, but they still cannot meet the high transmittance requirements of HUD display devices. Summary of the invention

[0003] The embodiments of the present application provide a display module and a display device, which greatly reduce the light emission angle, thereby increasing the transmittance of small-angle light, and further reducing the brightness requirement of the display module for the backlight module, which not only reduces power consumption but also facilitates thermal management of the display device.

[0004] In order to achieve the above object, according to a first aspect of the present application, a display module is provided, comprising:

[0005] A display panel, the display panel comprising a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer arranged between the first substrate and the second substrate;

[0006] a backlight module, wherein the backlight module is arranged on a side of the first substrate away from the second substrate;

[0007] A dimming layer, the dimming layer is arranged on a side of the backlight module facing the display panel, the dimming layer comprises a first lens film for collecting light, and the direction from the backlight module to the display panel is configured as the light collecting direction of the first lens film;

[0008] The display panel further includes a second lens film for collecting light, the second lens film is located between the first substrate and the second substrate, and the direction from the first substrate to the second substrate is configured as the light collecting direction of the second lens film.

[0009] In one embodiment, the display panel has a plurality of display partitions arranged in an array;

[0010] The backlight module has a plurality of backlight partitions corresponding to the plurality of display partitions one by one, the backlight module includes a plurality of backlight sources, each of the backlight sources is located in one of the backlight partitions, each of the backlight sources includes at least three light-emitting units of different colors, and the three light-emitting units emit light in sequence within a preset time length;

[0011] The display panel receives the colored backlight emitted by the backlight module and displays a picture, the preset duration is set to T1, the field period of the display panel is set to T2, and each of the backlight sources includes light-emitting units of N colors, wherein T1=N×T2.

[0012] In one embodiment, each of the backlight sources includes a plurality of the light-emitting units arranged in an array, the plurality of the light-emitting units include a plurality of first sub-units, a plurality of second sub-units, and a plurality of third sub-units, the first sub-units, the second sub-units, and the third sub-units have different colors, in the Nth row, the plurality of the first sub-units and the plurality of the second sub-units are arranged alternately, in the N+1th row, the plurality of the first sub-units and the plurality of the third sub-units are arranged alternately, and N is greater than or equal to 1, and the first sub-units in two adjacent rows are arranged alternately;

[0013] Wherein, within the preset time period, the plurality of the first sub-units, the plurality of the second sub-units and the plurality of the third sub-units emit light in sequence.

[0014] In one embodiment, one of the first subunit and the second subunit is configured as a blue light emitting unit, the other is configured as a green light emitting unit, and the third subunit is configured as a red light emitting unit.

[0015] In one embodiment, the light emitting units in two adjacent backlight sources are arranged in the same order.

[0016] In one embodiment, the backlight module further includes a substrate and a first light shielding layer, the first light shielding layer is arranged on a side of the substrate facing the display panel, the first light shielding layer includes a plurality of first light shielding portions, the plurality of first light shielding portions are arranged in a criss-cross pattern and define a plurality of openings, each of the openings forming one of the backlight partitions;

[0017] Each of the backlight sources is disposed in one of the openings.

[0018] In one embodiment, the dimming layer includes multiple layers of the first lens films, and the multiple layers of the first lens films are stacked in a direction from the backlight module to the display panel, the light collecting directions of two adjacent first lens film layers are the same, and the first microlenses on two adjacent first lens film layers are arranged in alignment.

[0019] In one embodiment, the display panel has a plurality of display partitions arranged in an array;

[0020] The second lens film includes a plurality of second micro lenses, and each of the second micro lenses is arranged corresponding to one of the display partitions;

[0021] Wherein, a plurality of the second micro lenses are arranged on a side of the first substrate facing the second substrate, or a plurality of the second micro lenses are arranged on a side of the second substrate facing the first substrate.

[0022] In one embodiment, a plurality of the second micro lenses are disposed on a side of the second substrate facing the first substrate;

[0023] The second lens film further includes a flat layer, which is disposed on a side of the second substrate facing the first substrate and covers a plurality of the second microlenses, and a refractive index of the flat layer is smaller than a refractive index of the second microlenses.

[0024] According to a second aspect of the present application, a display device is provided, including:

[0025] The display module mentioned above; and

[0026] A reflective component is arranged on the display side of the display module, and the reflective component includes at least two reflectors for reflecting the light emitted from the display module to the windshield to form a virtual image.

[0027] In the display module of the embodiment of the present application, a first lens film is arranged on the side of the backlight module facing the display panel, and the first lens film is used to collect the light emitted from the backlight module; a second lens film is arranged between the first substrate and the second substrate of the display panel, and the direction from the backlight module to the display panel is configured as the light collecting direction of the first lens film; after the light emitted from the backlight module passes through the first lens film for the first collection, the emission angle becomes smaller; the light with a small angle enters the display panel, and before the light is emitted, it will pass through the second lens film in the display panel for the second collection, further reducing the light emission angle; in this way, the light emitted from the backlight module will be focused twice in sequence before and after entering the display panel, so that the light emission angle is greatly reduced, thereby increasing the transmittance of the light with a small angle, and then reducing the display module's brightness requirement for the backlight module, which not only reduces power consumption but also is beneficial to the thermal management of the display device.

[0028] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0030] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0031] Figure 1 A schematic diagram of a film layer of a display module provided by the prior art;

[0032] Figure 2 A schematic diagram of a film layer of a display module provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of a first film layer of a display panel provided in an embodiment of the present application;

[0034] Figure 4 A schematic diagram of a second film layer of a display panel provided in an embodiment of the present application;

[0035] Figure 5 A schematic diagram of a first structure of a second lens film provided in an embodiment of the present application;

[0036] Figure 6 A schematic diagram of a second structure of a second lens film provided in an embodiment of the present application;

[0037] Figure 7 A schematic diagram of the structure of a first lens film provided in an embodiment of the present application;

[0038] Figure 8 A comparison diagram of the Mask and the spherical lens provided in the embodiment of the present application;

[0039] Fig. 9 A schematic diagram of the arrangement of the three-color light sources of the backlight module provided in an embodiment of the present application;

[0040] Fig.10 A schematic diagram of the film layers of the backlight module provided in an embodiment of the present application;

[0041] Fig.11 A schematic diagram of the structure of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0043] The embodiments of the present application provide a display module 100 and a display device 1000. They are described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0044] The present application does not impose any specific restrictions on the display device 1000. The display device 1000 is generally used as a head-up display device and applied to vehicle-mounted equipment; it can also be applied to the aviation industry or medical equipment, and no specific restrictions are imposed here. The display device 1000 generally adopts an LCD (Liquid Crystal Display).

[0045] In a first aspect, the present application embodiment provides a display module 100, see Figures 2 to 4 The display module 100 includes a display panel 1, a backlight module 2 and a dimming layer 3; the display panel 1 includes a first substrate 11 and a second substrate 12 that are arranged opposite to each other, and a liquid crystal layer 13 arranged between the first substrate 11 and the second substrate 12; the backlight module 2 is arranged on the side of the first substrate 11 away from the second substrate 12; the dimming layer 3 is arranged on the side of the backlight module 2 facing the display panel 1, and the dimming layer 3 includes a first lens film 31 for collecting light, and the direction from the backlight module 2 to the display panel 1 is configured as the light collecting direction of the first lens film 31; wherein, the display panel 1 also includes a second lens film 14 for collecting light, the second lens film 14 is located between the first substrate 11 and the second substrate 12, and the direction from the first substrate 11 to the second substrate 12 is configured as the light collecting direction of the second lens film 14.

[0046] In the prior art, see Figure 1 The display module 100′ includes a liquid crystal display panel 1′ and a backlight module 2′. The backlight module 2′ usually includes a backlight source 21′ and a lens layer 22′. The lens layer 22′ is arranged on the light-emitting side of the backlight source 21. The lens layer 22′ usually adopts stacked lenses 221′, cylindrical lenses 222′ and Fresnel lenses 223′. The light emitted by the backlight module 2 can improve the transmittance of small-angle light after being focused by the lens layer 22′, but the brightening effect is not good.

[0047] In the display module 100 of the embodiment of the present application, the first lens film 31 is set on the side of the backlight module 2 facing the display panel 1, and the first lens film 31 is used to collect the light emitted from the backlight module 2; after the light emitted from the backlight module 2 is collected for the first time by the first lens film 31, the emission angle becomes smaller.

[0048] The second lens film 14 is arranged between the first substrate 11 and the second substrate 12 of the display panel 1, and the light with a small angle enters the first substrate 11 and is emitted from the second substrate 12. Since the direction from the first substrate 11 to the second substrate 12 is configured as the light collecting direction of the second lens film 14, the light collecting direction of the second lens film 14 is consistent with the light collecting direction of the first lens film 31. After the light is emitted from the first substrate 11 to the second substrate 12, it will be collected for the second time at the second lens film 14, further reducing the light emission angle; in this way, the light emitted by the backlight module 2 will be focused twice in sequence before and after entering the display panel 1, so that the light emission angle is greatly reduced, thereby increasing the transmittance of the light with a small angle, and then reducing the brightness requirement of the display module 100 for the backlight module 2, which can not only reduce power consumption but also facilitate the thermal management of the head-up display device.

[0049] Moreover, in the prior art, the liquid crystal display panel 1′ of the display module 100′ generally includes an array substrate 11′, a color film substrate 12′ and a liquid crystal layer 13. The array substrate 11′ and the color film substrate 12′ are arranged opposite to each other and are connected by a support column 16′. The liquid crystal layer 13′ is arranged between the array substrate 11′ and the color film substrate 12′. After the white light emitted by the backlight module 2 passes through the color film substrate 12′, the brightness of the light will be greatly reduced. In order to ensure the display effect, it is necessary to increase the brightness of the backlight module 2, so that the display module 100′ has higher power consumption.

[0050] In the embodiment of the present application, the backlight module 2 is configured as a field sequential backlight module 2. Figure 2 and Fig. 9, the display panel 1 has a plurality of display partitions a arranged in an array; the backlight module 2 has a plurality of backlight partitions b corresponding to the plurality of display partitions a one-to-one, the backlight module 2 includes a plurality of backlight sources 21, each of the backlight sources 21 is located in one of the backlight partitions b, each of the backlight sources 21 includes at least three light-emitting units of different colors, and the three light-emitting units emit light in sequence within a preset time length; wherein the display panel 1 receives the colored backlight emitted by the backlight module 2 and displays a picture, the preset time length is set to T1, the field period of the display panel is set to T2, each of the backlight sources includes light-emitting units of N colors, wherein T1=N×T2.

[0051] It is known that field sequential is a display technology widely used in projectors, microdisplays, and other types of display devices. Unlike traditional frame buffer display, field sequential display realizes the display of color images by quickly switching color fields instead of displaying all colors at the same time. This technology can significantly reduce the required color filters and backlights, thereby reducing costs, improving brightness and contrast, and reducing power consumption. In field sequential display, a complete image is decomposed into multiple "fields", each of which contains information about only one color. Usually, field sequential display uses three color fields of red, green, and blue (RGB), which are quickly switched in sequence to form a complete color image; field sequential display uses time division to display the three color fields of red, green, and blue in sequence in a very short time. Due to the persistence of vision of the human eye, these rapidly switched color fields will synthesize a continuous color image in the brain.

[0052] The human eye's perception of flicker is closely related to its visual persistence time. When the flicker frequency is lower than a certain critical value (usually 24Hz to 46Hz), the human eye can clearly perceive the flicker of the screen; when the flicker frequency exceeds this critical value, the visual persistence effect of the human eye will make the flicker less obvious or even completely imperceptible. In order to ensure that the human eye does not perceive the switching of color fields, the refresh rate of the display is usually set to 60Hz or even higher. In order to ensure that the human eye does not perceive the switching of color fields, the refresh rate of the field sequential display must be high enough, with a refresh rate of 60Hz or higher for each color field, so the refresh rate of the entire image may reach 180Hz or higher.

[0053] It should be noted that when describing the image update of the display, "refresh rate" and "field frequency cycle" are usually used; the refresh rate emphasizes the number of times the image is updated per second, and the field frequency cycle emphasizes the time interval between each image update; the field frequency cycle and refresh rate are inversely proportional to each other: the shorter the field frequency cycle, the higher the refresh rate; the longer the field frequency cycle, the lower the refresh rate.

[0054] The field sequential backlight module 2 can emit red, green and blue light in sequence within the preset duration, and project them onto the display panel 1 in sequence; the preset duration refers to the field frequency period of the display panel, and the field period refers to the display time of each color field. Each of the backlight sources includes light-emitting units of N colors, and the preset duration = number of color fields * field period, for example: field frequency (refresh rate) = 180Hz, field frequency period (preset duration) = 1 / 180S, each of the backlight sources includes light-emitting units of 3 colors (RGB), and the field period of each color field = (1 / 180)*(1 / 3).

[0055] That is to say, during the residual visual time of the human eye, the field sequential backlight module 2 emits red, green and blue lights in sequence and projects them into the display panel 1 in sequence. In this way, the visual inertia of the human eye can be used to synthesize a color picture, which makes it unnecessary to use a color filter on the display panel 1, thereby improving the light transmittance and achieving a high-penetration transparent display. It can be known that the structure of the field sequential backlight module 2 is a prior art, so it will not be described in detail.

[0056] The present application does not impose any specific restrictions on the structure of the backlight source 21 of the backlight module 2. The backlight source 21 may be composed of light-emitting units of the same color or light-emitting units of different colors.

[0057] In one embodiment, see Fig. 9 Each of the backlight sources 21 includes a plurality of the light-emitting units arranged in an array, the plurality of the light-emitting units include a plurality of first sub-units 211, a plurality of second sub-units 212 and a plurality of third sub-units 213, the first sub-units 211, the second sub-units 212 and the third sub-units 213 have different colors, in the Nth row, the plurality of the first sub-units 211 and the plurality of the second sub-units 212 are arranged alternately, in the N+1th row, the plurality of the first sub-units 211 and the plurality of the third sub-units 213 are arranged alternately, and N is greater than or equal to 1, and the first sub-units 211 of two adjacent rows are staggered; wherein, within the preset time length, the plurality of the first sub-units 211, the plurality of the second sub-units 212 and the plurality of the third sub-units 213 emit light in sequence.

[0058] That is to say, in this embodiment, in the backlight source 21, in the Nth row, the plurality of first sub-units 211 and the plurality of second sub-units 212 are arranged alternately, and in the N+1th row, the plurality of first sub-units 211 and the plurality of third sub-units 213 are arranged alternately, and N is greater than or equal to 1; in the Mth column, the plurality of first sub-units 211 and the plurality of third sub-units 213 are arranged alternately, and in the M+1th column, the plurality of second sub-units 212 and the plurality of first sub-units 211 are arranged alternately, and M is greater than or equal to 1.

[0059] Specifically, the backlight module 2 includes a red light emitting unit, a blue light emitting unit and a green light emitting unit, the red light emitting unit includes a red light LED chip, the blue light emitting unit includes a blue light LED chip, and the green light emitting unit includes a green light LED chip. The red light LED chip emits red light, the blue light LED chip emits blue light, and the green light LED chip emits green light. The red light LED chip, the blue light LED chip and the green light LED chip can be any one of a sub-millimeter light emitting diode (Mini-LED) or a micro light emitting diode (Micro-LED).

[0060] Furthermore, any two of the first sub-units 211 have the same color, any two of the second sub-units 212 have the same color, and any two of the third sub-units 213 have the same color. The first sub-unit 211 can be one of a red light emitting unit, a blue light emitting unit, and a green light emitting unit. The second sub-unit 212 can be one of a red light emitting unit, a blue light emitting unit, and a green light emitting unit. The third sub-unit 213 can be one of a red light emitting unit, a blue light emitting unit, and a green light emitting unit.

[0061] Typically, the display device 1000 is capable of providing a wider color range and higher contrast to achieve more realistic and vivid image effects, so when displaying these contents, blue and green sub-pixels may be activated more to reproduce more realistic colors; following the above embodiment, when arranging the light-emitting units of the backlight source 21, the number of the first sub-units 211 is significantly greater than the number of the second sub-units 212 and the third sub-units 213, so the first sub-unit 211 can be set to a blue light-emitting unit or a green light-emitting unit, the second sub-unit 212 is correspondingly set to a green light-emitting unit or a blue light-emitting unit, and the third sub-unit 213 is set to a red light-emitting unit.

[0062] The present application does not impose any specific restrictions on the arrangement of the backlight source 21, and the arrangement of the light emitting units in the plurality of backlight sources 21 may be the same or different. Fig. 9, the arrangement order of the light emitting units of two adjacent backlight sources 21 is the same; in this way, the arrangement of the light emitting units of the backlight sources 21 is more regular, which can simplify the setting of the driving circuit for driving the backlight sources 21.

[0063] The present application does not impose any specific restrictions on the shape of the light-emitting units. The light-emitting units may all be set to be square; the light-emitting units may be partially set to be circular, and the adjacent light-emitting units may be set to be irregularly shaped, and the edges thereof may be adapted to the shape of the edges of the circular light-emitting units. By arranging the shapes of the two adjacent light-emitting units to be adapted, the arrangement of the light-emitting units in each of the backlight sources 21 may be more compact, the arrangement density of the light-emitting units per unit area may be increased, and the light effect may be further improved.

[0064] Following the above “the backlight module 2 includes a plurality of backlight sources 21, each of which is located in one of the backlight partitions b”, in one embodiment, please refer to Fig.10 The backlight module 2 further includes a substrate 22 and a first light shielding layer 23. The first light shielding layer 23 is disposed on the side of the substrate 22 facing the display panel 1. The first light shielding layer 23 includes a plurality of first light shielding portions 231. The plurality of first light shielding portions 231 are arranged in a crisscross pattern and define a plurality of openings 24. Each of the openings 24 forms a backlight partition b. Each of the backlight sources 21 is disposed in an opening 24. By providing a plurality of the first light shielding portions 231, two adjacent backlight sources 21 are isolated to avoid light mixing abnormalities when a part of the backlight source 21 is turned on.

[0065] The present application does not specifically limit the formation method of the first light shielding portion 231. A black photoresist layer may be provided on the side of the substrate 22 facing the display panel 1, and the black photoresist layer may be etched to form a plurality of crisscrossing first light shielding portions 231, and define a plurality of light-transmitting openings 24.

[0066] In one embodiment, the first lens film 31 includes a plurality of first micro lenses 311. The present application does not impose any specific restrictions on the structure and shape of the first micro lenses 311. The first micro lenses 311 may be hemispherical lenses, cylindrical lenses, triangular prism lenses, or ellipsoidal lenses. Figure 7 , the first microlens 311 is configured as a cylindrical lens.

[0067] The present application does not specifically limit the number of the first lens film 31. The first lens film 31 may be provided in one layer, two layers, or multiple layers. Figure 2The dimming layer 3 includes multiple layers of the first lens films 31. In the direction from the backlight module 2 to the display panel 1, the multiple layers of the first lens films 31 are stacked, and the light collecting directions of two adjacent first lens films 31 are the same. The first micro lenses 311 on two adjacent first lens films 31 are arranged in alignment; that is, the light emitted by the backlight module 2 will be focused multiple times before entering the display panel 1, so that the angle of the light entering the display panel 1 is small and the brightness is high.

[0068] The present application does not impose any specific restrictions on the location of the second lens film 14. The display panel 1 has a plurality of display partitions a arranged in an array; the second lens film 14 includes a plurality of second microlenses 141, each of which is arranged corresponding to one of the display partitions a.

[0069] See also Figure 3 In one embodiment, a plurality of the second micro lenses 141 are disposed on a side of the first substrate 11 facing the second substrate 12 .

[0070] See also Figure 4 In one embodiment, a plurality of the second micro lenses 141 are disposed on a side of the second substrate 12 facing the first substrate 11 .

[0071] Specifically, a plurality of second microlenses 141 are arranged on a side of the second substrate 12 facing the first substrate 11; the second lens film 14 also includes a flat layer 142, which is arranged on a side of the second substrate 12 facing the first substrate 11 and covers the plurality of second microlenses 141, and the refractive index of the flat layer 142 is less than the refractive index of the second microlenses 141; that is, a plurality of second microlenses 141 are made of high-refractive material on a side of the second substrate 12 facing the first substrate 11, and a flat layer 142 covering the plurality of second microlenses 141 is made of low-refractive material, and after the light passes through the flat layer 142 and the second microlenses 141 in sequence, it is refracted and focused, so that the light emitted from the display panel 1 has a small angle and is bright.

[0072] The present application does not specifically limit the refractive index of the second microlens 141 and the flat layer 142. The refractive index of the second microlens 141 is set to 1.6 to 2.0; the refractive index of the flat layer 142 is set to 1.1 to 1.6. Preferably, the refractive index of the flat layer 142 is set to 1.4 to 1.5.

[0073] The present application does not impose any specific restrictions on the structure and shape of the second microlens 141. Figure 5 and Figure 6The second microlens 141 may be a hemispherical lens, a cylindrical lens, a triangular prism, or an ellipsoidal lens.

[0074] Meanwhile, when the second microlens 141 is set as a hemispherical lens, the size and curvature of the second microlens 141 can be adjusted accordingly by adjusting the pattern of the mask. Figure 8 , A to D are masks of different patterns, which can form hemispherical lenses of different sizes and curvatures.

[0075] Following the above “the display panel 1 has a plurality of display partitions a arranged in an array”, please refer to Figure 3 and Figure 4 The display panel 1 also includes a second shading layer 15, which is arranged on the side of the second substrate 12 facing the first substrate 11. The second shading layer 15 includes a plurality of second shading portions 151, which are crisscrossed and define a plurality of display partitions a.

[0076] The present application does not specifically limit the formation method of the second light shielding portion 151. A black photoresist layer can be provided on the side of the second substrate 12 facing the first substrate 11, and the black photoresist layer can be etched to form a plurality of crisscrossed second light shielding portions 151, and define a plurality of the display partitions a.

[0077] In one embodiment, see Figure 3 The display panel 1 further includes a support column 16 , which is disposed between the first substrate 11 and the second substrate 12 , and two ends of the support column 16 are respectively connected to the first substrate 11 and the second substrate 12 .

[0078] In a second aspect, the present application provides a display device 1000. Fig.11 , the display device 1000 includes a display module 100 and a reflective component 200; the reflective component 200 is arranged on the display side of the display module 100, and the reflective component 200 includes at least two reflectors for reflecting the light emitted from the display module 100 to the windshield 300 and forming a virtual image. It should be noted that the display module 100 is set as the above-mentioned display module 100, that is, the display module 100 includes all the technical features of the above-mentioned display module 100, and the display device 1000 includes all the embodiments of the above-mentioned display module 100, and also has all the technical effects of the above-mentioned embodiments, which will not be repeated here.

[0079] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0081] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0082] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display module, characterized in that: include: A display panel, the display panel comprising a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer arranged between the first substrate and the second substrate; a backlight module, wherein the backlight module is arranged on a side of the first substrate away from the second substrate; A dimming layer, the dimming layer is arranged on a side of the backlight module facing the display panel, the dimming layer comprises a first lens film for collecting light, and the direction from the backlight module to the display panel is configured as the light collecting direction of the first lens film; The display panel further includes a second lens film for collecting light, the second lens film is located between the first substrate and the second substrate, and the direction from the first substrate to the second substrate is configured as the light collecting direction of the second lens film.

2. The display module according to claim 1, wherein: The display panel has a plurality of display partitions arranged in an array; The backlight module has a plurality of backlight partitions corresponding to the plurality of display partitions one by one, the backlight module includes a plurality of backlight sources, each of the backlight sources is located in one of the backlight partitions, each of the backlight sources includes at least three light-emitting units of different colors, and the three light-emitting units emit light in sequence within a preset time length; The display panel receives the colored backlight emitted by the backlight module and displays a picture, the preset duration is set to T1, the field period of the display panel is set to T2, and each of the backlight sources includes light-emitting units of N colors, wherein T1=N×T2.

3. The display module according to claim 2, wherein: Each of the backlight sources includes a plurality of the light-emitting units arranged in an array, the plurality of the light-emitting units include a plurality of first sub-units, a plurality of second sub-units, and a plurality of third sub-units, the first sub-units, the second sub-units, and the third sub-units have different colors, in the Nth row, the plurality of the first sub-units and the plurality of the second sub-units are arranged alternately, in the N+1th row, the plurality of the first sub-units and the plurality of the third sub-units are arranged alternately, and N is greater than or equal to 1, and the first sub-units in two adjacent rows are arranged alternately; Wherein, within the preset time period, the plurality of the first sub-units, the plurality of the second sub-units and the plurality of the third sub-units emit light in sequence.

4. The display module according to claim 3, wherein: One of the first subunit and the second subunit is configured as a blue light emitting unit, the other is configured as a green light emitting unit, and the third subunit is configured as a red light emitting unit.

5. The display module according to claim 3, wherein: The light emitting units in two adjacent backlight sources are arranged in the same order.

6. The display module according to claim 2, wherein: The backlight module further includes a substrate and a first light shielding layer, wherein the first light shielding layer is arranged on a side of the substrate facing the display panel, and the first light shielding layer includes a plurality of first light shielding portions, wherein the plurality of first light shielding portions are arranged in a crisscross pattern and define a plurality of openings, and each of the openings forms a backlight partition; Each of the backlight sources is disposed in one of the openings.

7. The display module according to claim 1, wherein: The dimming layer includes multiple layers of the first lens films. In the direction from the backlight module to the display panel, the multiple layers of the first lens films are stacked, the light collecting directions of two adjacent first lens film layers are the same, and the first microlenses on two adjacent first lens film layers are arranged in alignment.

8. The display module according to claim 1, wherein: The display panel has a plurality of display partitions arranged in an array; The second lens film includes a plurality of second micro lenses, and each of the second micro lenses is arranged corresponding to one of the display partitions; Wherein, a plurality of the second micro lenses are arranged on a side of the first substrate facing the second substrate, or a plurality of the second micro lenses are arranged on a side of the second substrate facing the first substrate.

9. The display module according to claim 8, wherein: A plurality of the second micro lenses are arranged on a side of the second substrate facing the first substrate; The second lens film further includes a flat layer, which is disposed on a side of the second substrate facing the first substrate and covers a plurality of the second microlenses, and a refractive index of the flat layer is smaller than a refractive index of the second microlenses.

10. A display device, characterized in that: include: The display module according to any one of claims 1 to 9; as well as, A reflective component is arranged on the display side of the display module, and the reflective component includes at least two reflectors for reflecting the light emitted from the display module to the windshield to form a virtual image.

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