Display module and display device

Abstract

The application relates to a display module and a display device. The display module comprises a display panel, a backlight module and a light adjusting layer. The display panel comprises a first substrate and a second substrate arranged oppositely, and a liquid crystal layer arranged between the first substrate and the second substrate. The backlight module is arranged on the side of the first substrate away from the second substrate. The light adjusting layer is arranged on the side of the backlight module facing the display panel. The light adjusting layer comprises a first lens film for light collection. The direction from the backlight module to the display panel is configured as the light collection direction of the first lens film. The display panel further comprises a second lens film for light collection. The second lens film is arranged between the first substrate and the second substrate. The direction from the first substrate to the second substrate is configured as the light collection direction of the second lens film.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a display module and a display device. Background Technology

[0002] With the increasing demand for interactive information display and intelligent driving, and the popularization of AR (Augmented Reality) technology, the market prospects for HUD (Head-Up Display) technology are becoming increasingly broad. Current HUD display devices offer portable navigation and customizable content, providing convenience for drivers. High-transmittance HUD display devices not only provide consistent display effects under various lighting conditions but also reduce the overall backlight brightness requirements, thereby reducing power consumption and improving thermal management. Existing HUD display devices include LCD screens and backlight modules. Lenses are typically added to the backlight module to focus light and increase brightness, but this still cannot meet the high transmittance requirements of HUD display devices. Summary of the Invention

[0003] This application provides a display module and display device that significantly reduces the light emission angle, thereby increasing the transmittance of small-angle light and reducing the brightness requirement of the backlight module on the display module. This not only reduces power consumption but also facilitates the thermal management of the display device.

[0004] To achieve the above objectives, according to a first aspect of this application, a display module is provided, comprising:

[0005] The display panel includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate;

[0006] A backlight module, wherein the backlight module is disposed on the side of the first substrate opposite to the second substrate;

[0007] A dimming layer is disposed on the side of the backlight module facing the display panel. The dimming layer includes a first lens film for light collection, and the direction from the backlight module to the display panel is configured as the light collection direction of the first lens film.

[0008] The display panel further includes a second lens film for light collection. 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 collection direction of the second lens film.

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

[0010] The backlight module has multiple backlight zones that correspond one-to-one with the multiple display zones. The backlight module includes multiple backlight sources. Each backlight source is located within a backlight zone. Each backlight source includes at least three light-emitting units of different colors. The three light-emitting units emit light sequentially within a preset time period.

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

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

[0013] During the preset time period, multiple first sub-units, multiple second sub-units, and multiple third sub-units emit light sequentially.

[0014] In one embodiment, one of the first subunit and the second subunit is configured as a blue light-emitting unit, the other 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 backlights 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 disposed on the side of the substrate facing the display panel. The first light-shielding layer includes a plurality of first light-shielding portions, which are arranged in a crisscross pattern and define a plurality of openings. Each opening forms a backlight zone.

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

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

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

[0020] The second lens film includes a plurality of second microlenses, each of which corresponds to one of the display partition settings;

[0021] The plurality of second microlenses are disposed on the side of the first substrate facing the second substrate, or the plurality of second microlenses are disposed on the side of the second substrate facing the first substrate.

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

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

[0024] According to a second aspect of this application, a display device is provided, comprising:

[0025] The aforementioned display module; and,

[0026] A reflective component is disposed on the display side of the display module. The reflective component includes at least two reflectors for reflecting light emitted from the display module onto the windshield and forming a virtual image.

[0027] In the display module of this application embodiment, a first lens film is disposed on the side of the backlight module facing the display panel. The first lens film is used to collect light emitted from the backlight module. A second lens film is disposed between the first substrate and the second substrate of the display panel. The direction from the backlight module to the display panel is configured as the light collection direction of the first lens film. After the light emitted from the backlight module is collected for the first time by the first lens film, the emission angle becomes smaller. The small-angle light enters the display panel and is collected for the second time by the second lens film before it is emitted, further reducing the light emission angle. In this way, the light emitted from the backlight module is focused twice before and after entering the display panel, which greatly reduces the light emission angle, thereby increasing the transmittance of small-angle light and reducing the brightness requirement of the display module on the backlight module. This not only reduces power consumption but also benefits the thermal management of the display device.

[0028] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

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

[0032] Figure 2 This is a schematic diagram of the film layers of the display module provided in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the first type of film layer of the display panel provided in the embodiments of this application;

[0034] Figure 4 This is a schematic diagram of the second type of film layer of the display panel provided in the embodiments of this application;

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

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

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

[0038] Figure 8 A comparison diagram of the mask and spherical lens provided for embodiments of this application;

[0039] Figure 9 A schematic diagram showing the arrangement of the three-color light sources in the backlight module provided in the embodiments of this application;

[0040] Figure 10 This is a schematic diagram of the film layers of the backlight module provided in the embodiments of this application;

[0041] Figure 11 This is a schematic diagram of the structure of the display device provided in the embodiments of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0043] This application provides a display module 100 and a display device 1000. These will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0044] This application does not impose specific limitations on the display device 1000. The display device 1000 is generally used as a head-up display device in vehicle-mounted equipment; it can also be used in the aviation industry or medical equipment, without specific limitations here. The display device 1000 generally uses an LCD (Liquid Crystal Display).

[0045] In a first aspect, embodiments of this application provide a display module 100, please refer to... 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 disposed opposite to each other, and a liquid crystal layer 13 disposed between the first substrate 11 and the second substrate 12. The backlight module 2 is disposed on the side of the first substrate 11 away from the second substrate 12. The dimming layer 3 is disposed on the side of the backlight module 2 facing the display panel 1. The dimming layer 3 includes a first lens film 31 for light collection, and the direction from the backlight module 2 to the display panel 1 is configured as the light collection direction of the first lens film 31. The display panel 1 also includes a second lens film 14 for light collection, 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 collection direction of the second lens film 14.

[0046] In the prior art, please refer to Figure 1 The display module 100' includes a liquid crystal display panel 1' and a backlight module 2'. The backlight module 2' typically includes a backlight source 21' and a lens layer 22'. The lens layer 22' is disposed on the light-emitting side of the backlight source 21. The lens layer 22' typically uses a stacked lens 221', a cylindrical lens 222', and a Fresnel lens 223'. After the light emitted from the backlight module 2 is focused by the lens layer 22', the transmittance of light at small angles can be improved, but the brightness enhancement effect is not good.

[0047] In the display module 100 of this application embodiment, the backlight module 2 is provided with the first lens film 31 on the side facing the display panel 1. 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] A second lens film 14 is disposed between the first substrate 11 and the second substrate 12 of the display panel 1. Light at a small angle enters the first substrate 11 and exits from the second substrate 12. Since the direction from the first substrate 11 to the second substrate 12 is configured as the light-receiving direction of the second lens film 14, the light-receiving direction of the second lens film 14 is consistent with the light-receiving 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 re-received at the second lens film 14, further reducing the light emission angle. In this way, the light emitted from the backlight module 2 will be focused twice before and after entering the display panel 1, which greatly reduces the light emission angle, thereby increasing the transmittance of small-angle light and reducing the brightness requirement of the display module 100 on the backlight module 2. This not only reduces power consumption but also facilitates the thermal management of the display device.

[0049] Furthermore, in the prior art, the liquid crystal display panel 1' of the display module 100' typically includes an array substrate 11', a color filter substrate 12', and a liquid crystal layer 13. The array substrate 11' and the color filter substrate 12' are arranged opposite to each other and connected by a support post 16'. The liquid crystal layer 13' is disposed between the array substrate 11' and the color filter substrate 12'. After the white light emitted by the backlight module 2 is transmitted through the color filter substrate 12', the brightness of the light will be greatly reduced. In order to ensure the display effect, the brightness of the backlight module 2 needs to be increased, which makes the display module 100' have high power consumption.

[0050] In embodiments of this application, the backlight module 2 is configured as a field-sequence backlight module 2. Please refer to [link / reference]. Figure 2 and Figure 9The display panel 1 has multiple display zones a arranged in an array; the backlight module 2 has multiple backlight zones b corresponding one-to-one with the multiple display zones a, the backlight module 2 includes multiple backlight sources 21, each backlight source 21 is located in one of the backlight zones b, each backlight source 21 includes at least three light-emitting units of different colors, and the three light-emitting units emit light sequentially within a preset time period; wherein, the display panel 1 receives the colored backlight emitted by the backlight module 2 and displays the image, the preset time period is set to T1, the field period of the display panel is set to T2, and each backlight source includes light-emitting units of N colors, wherein T1 = N × T2.

[0051] Field-sequential display is a technology widely used in projectors, microdisplays, and other types of display devices. Unlike traditional framebuffered display, field-sequential display achieves color image display by rapidly switching color fields, rather than displaying all colors simultaneously. This technology significantly reduces the required color filters and backlights, thereby lowering costs, improving brightness and contrast, and reducing power consumption. In field-sequential display, a complete image is broken down into multiple "fields," each containing information for only one color. Typically, field-sequential display uses three color fields—red, green, and blue (RGB)—which are rapidly switched sequentially to form a complete color image; field-sequential display uses time-division multiplexing to sequentially display the red, green, and blue color fields in a very short time. Due to the persistence of vision, these rapidly switching color fields are synthesized into 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 below a certain threshold (usually 24Hz to 46Hz), the human eye can clearly perceive the screen flicker. When the flicker frequency exceeds this threshold, the visual persistence effect makes the flicker less noticeable, or even completely imperceptible. To ensure that the human eye does not perceive the switching of color fields, the refresh rate of the monitor is usually set to 60Hz or even higher. Furthermore, to ensure that the human eye does not perceive the switching of color fields, the refresh rate of the field-sequence display must be high enough, with each color field having a refresh rate of 60Hz or higher. Therefore, the refresh rate of the entire image may reach 180Hz or higher.

[0053] It should be noted that when describing image updates on a monitor, the terms "refresh rate" and "time interval" are commonly used. The refresh rate emphasizes the number of times the image is updated per second, while the time interval emphasizes the time interval between each image update. The time interval and refresh rate are inversely related: the shorter the time interval, the higher the refresh rate; the longer the time interval, the lower the refresh rate.

[0054] The 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 backlight source includes N color light-emitting units. The preset duration = number of color fields * field period. For example, the field frequency (refresh rate) = 180Hz, the field frequency period (preset duration) = 1 / 180S. Each backlight source includes 3 color light-emitting units (RGB), and the field period of each color field = (1 / 180) * (1 / 3).

[0055] In other words, during the persistence of vision, the field-sequential backlight module 2 emits red, green, and blue light sequentially and projects them onto the display panel 1 in turn. This allows the visual inertia of the human eye to be utilized to synthesize a color image, eliminating the need for a color filter on the display panel 1 and thus increasing light transmittance for a high-transmittance transparent display. It is understood that the structure of the field-sequential backlight module 2 is existing technology and will not be described in detail here.

[0056] This application does not impose specific limitations on the structure of the backlight 21 of the backlight module 2. The backlight 21 can be composed of light-emitting units of the same color or light-emitting units of different colors.

[0057] In one embodiment, please refer to Figure 9 Each backlight 21 includes a plurality of light-emitting units arranged in an array. The plurality of 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 are different colors. In the Nth row, the plurality of first sub-units 211 and the plurality of second sub-units 212 are arranged alternately. 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. The first sub-units 211 in adjacent rows are staggered. During the preset time period, the plurality of first sub-units 211, the plurality of second sub-units 212, and the plurality of third sub-units 213 emit light sequentially.

[0058] In other words, in this embodiment, in the backlight 21, in the Nth row, multiple first sub-units 211 and multiple second sub-units 212 are arranged alternately; in the N+1th row, multiple first sub-units 211 and multiple third sub-units 213 are arranged alternately, and N is greater than or equal to 1; in the Mth column, multiple first sub-units 211 and multiple third sub-units 213 are arranged alternately; in the M+1th column, multiple second sub-units 212 and multiple 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 LED chip, the blue light-emitting unit includes a blue LED chip, and the green light-emitting unit includes a green LED chip. The red LED chip emits red light, the blue LED chip emits blue light, and the green LED chip emits green light. The red, blue, and green LED chips can be either Mini-LEDs or Micro-LEDs.

[0060] Furthermore, any two first sub-units 211 have the same color, any two second sub-units 212 have the same color, and any two 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; and 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 can provide a wider color gamut and higher contrast to achieve more realistic and vivid image effects. Therefore, when displaying such content, blue and green sub-pixels may be activated more frequently to reproduce more realistic colors. Following the above embodiment, when arranging the light-emitting units of the backlight 21, the number of the first sub-unit 211 is significantly greater than that of the second sub-unit 212 and the third sub-unit 213. Therefore, the first sub-unit 211 can be set as a blue light-emitting unit or a green light-emitting unit, the second sub-unit 212 is correspondingly set as a green light-emitting unit or a blue light-emitting unit, and the third sub-unit 213 is set as a red light-emitting unit.

[0062] This application does not impose specific limitations on the arrangement of the backlight 21; the arrangement of the light-emitting units within multiple backlights 21 can be the same or different. In one embodiment, please refer to... Figure 9The light-emitting units of two adjacent backlights 21 are arranged in the same order; thus, the arrangement of the light-emitting units of the backlights 21 is more regular, which simplifies the setting of the driving circuit for driving the backlights 21.

[0063] This application does not impose specific limitations on the shape of the light-emitting units. All light-emitting units can be square; some light-emitting units can be circular, with adjacent light-emitting units being irregularly shaped and their edges adapted to the edge shape of the circular light-emitting units. By adapting the shapes of adjacent light-emitting units, the arrangement of light-emitting units within each backlight 21 becomes more compact, increasing the density of light-emitting units per unit area and further improving luminous efficiency.

[0064] Following the above statement that "the backlight module 2 includes a plurality of backlight sources 21, each of the backlight sources 21 being located within one of the backlight partitions b", in one embodiment, please refer to... Figure 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 parts 231, which are arranged in a crisscross pattern and define a plurality of openings 24. Each opening 24 forms a backlight zone b. Each backlight source 21 is disposed within one of the openings 24. By providing a plurality of first light-shielding parts 231, two adjacent backlight sources 21 are isolated, avoiding abnormal light mixing when a partial backlight source 21 is turned on.

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

[0066] In one embodiment, the first lens film 31 includes a plurality of first microlenses 311. This application does not impose specific limitations on the structure and shape of the first microlenses 311. The first microlens 311 may be a hemispherical lens, a cylindrical lens, a triangular prism, or an ellipsoidal lens. In one embodiment, please refer to... Figure 7 The first microlens 311 is configured as a cylindrical lens.

[0067] This application does not impose a specific limitation on the number of the first lens film 31. The first lens film 31 may be provided as one layer, two layers, or multiple layers. In one embodiment, please refer to... Figure 2The dimming layer 3 includes multiple layers of the first lens film 31. The multiple layers of the first lens film 31 are stacked in the direction from the backlight module 2 to the display panel 1. The light receiving directions of two adjacent first lens film 31 layers are the same, and the first microlenses 311 on the two adjacent first lens film 31 layers are aligned. That is to say, the light emitted from the backlight module 2 will be focused multiple times before entering the display panel 1, so that the light entering the display panel 1 has a small angle and is bright.

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

[0069] Please see Figure 3 In one embodiment, a plurality of second microlenses 141 are disposed on the side of the first substrate 11 facing the second substrate 12.

[0070] Please see Figure 4 In one embodiment, a plurality of second microlenses 141 are disposed on the side of the second substrate 12 facing the first substrate 11.

[0071] Specifically, a plurality of second microlenses 141 are disposed on the side of the second substrate 12 facing the first substrate 11; the second lens film 14 further includes a planarization layer 142, which is disposed on the side of the second substrate 12 facing the first substrate 11 and covers the plurality of second microlenses 141. The refractive index of the planarization layer 142 is less than the refractive index of the second microlenses 141. That is, a plurality of second microlenses 141 are made of a high-refractive-index material on the side of the second substrate 12 facing the first substrate 11, and a planarization layer 142 covering the plurality of second microlenses 141 is made of a low-refractive-index material. After the light passes through the planarization layer 142 and the second microlenses 141 in sequence, it is refracted and focused, thereby making the light emitted from the display panel 1 have a small angle and high brightness.

[0072] This application does not impose specific limitations on the refractive indices of the second microlens 141 and the planarization layer 142. The refractive index of the second microlens 141 is set to 1.6–2.0; the refractive index of the planarization layer 142 is set to 1.1–1.6. Preferably, the refractive index of the planarization layer 142 is set to 1.4–1.5.

[0073] This application does not impose specific limitations on the structure and shape of the second microlens 141. Please refer to... Figure 5 and Figure 6The second microlens 141 can be a hemispherical lens, a cylindrical lens, a triangular prism, or an ellipsoidal lens.

[0074] Meanwhile, when the second microlens 141 is configured as a hemispherical lens, the size and curvature of the second microlens 141 can be adjusted accordingly by adjusting the pattern of the mask. Please refer to [link / reference]. Figure 8 A to D are mask plates with different shapes, which can be used to form hemispherical lenses of different sizes and curvatures.

[0075] Following on the above statement that "the display panel 1 has multiple display zones a arranged in an array," please refer to [link to relevant documentation]. Figure 3 and Figure 4 The display panel 1 further includes a second light-shielding layer 15, which is disposed on the side of the second substrate 12 facing the first substrate 11. The second light-shielding layer 15 includes a plurality of second light-shielding portions 151, which are arranged in a crisscross pattern and define a plurality of display zones a.

[0076] This application does not specifically limit the formation method of the second light-shielding portion 151. A black photoresist layer may be provided on the side of the second substrate 12 facing the first substrate 11, and the black photoresist layer may be etched to form a plurality of crisscrossing second light-shielding portions 151, thereby defining a plurality of display zones a.

[0077] In one embodiment, please refer to 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 the two ends of the support column 16 are respectively connected to the first substrate 11 and the second substrate 12.

[0078] Secondly, embodiments of this application provide a display device 1000. Please refer to... Figure 11 The display device 1000 includes a display module 100 and a reflective component 200. The reflective component 200 is disposed on the display side of the display module 100, and the reflective component 200 includes at least two reflectors to reflect light emitted from the display module 100 onto the windshield 300 and form a virtual image. It should be noted that the display module 100 is configured as described above; that is, the display module 100 includes all the technical features of the aforementioned display module 100, and the display device 1000 includes all embodiments of the aforementioned display module 100, thus possessing all the technical effects of the aforementioned embodiments. These will not be elaborated upon here.

[0079] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0080] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0081] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0082] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display module, characterized in that, The display module is used in a head-up display, and the display module includes: The display panel includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate; A backlight module, wherein the backlight module is disposed on the side of the first substrate opposite to the second substrate; A dimming layer is disposed on the side of the backlight module facing the display panel. The dimming layer includes a first lens film for light collection, and the direction from the backlight module to the display panel is configured as the light collection direction of the first lens film. The display panel further includes a second lens film for light collection, the second lens film being located between the first substrate and the second substrate, and the direction from the first substrate to the second substrate being configured as the light collection direction of the second lens film; the display panel has a plurality of display zones arranged in an array; the second lens film includes a plurality of second microlenses, each second microlens corresponding to one of the display zones; the backlight module has a plurality of backlight zones corresponding one-to-one with the plurality of display zones, the backlight module including a plurality of backlight sources, each backlight source being located within one of the backlight zones; the display panel further includes a second light-shielding layer, the second light-shielding layer being disposed on the side of the second substrate facing the first substrate, the second light-shielding layer including a plurality of second light-shielding portions, the plurality of second light-shielding portions defining the plurality of display zones; Each of the backlight sources includes at least three light-emitting units of different colors, and the three light-emitting units emit light sequentially within a preset time period; The display panel receives the colored backlight emitted by the backlight module and displays the image. The preset duration is set to T1, and the field period of the display panel is set to T2. Each backlight source includes N color emitting units. .

2. The display module as described in claim 1, characterized in that, Each backlight source includes a plurality of light-emitting units arranged in an array. The plurality of 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, second sub-units, and third sub-units are different colors. In the Nth row, the plurality of first sub-units and the plurality of second sub-units are arranged alternately. In the N+1th row, the plurality of first sub-units and the plurality of third sub-units are arranged alternately, and N is greater than or equal to 1. The first sub-units in adjacent rows are staggered. During the preset time period, multiple first sub-units, multiple second sub-units, and multiple third sub-units emit light sequentially.

3. The display module as described in claim 2, characterized in that, One of the first subunit and the second subunit is set as a blue light-emitting unit, and the other is set as a green light-emitting unit, and the third subunit is set as a red light-emitting unit.

4. The display module as described in claim 2, characterized in that, The arrangement order of the light-emitting units in two adjacent backlights is the same.

5. The display module as described in claim 1, characterized in that, The backlight module further includes a substrate and a first light-shielding layer. The first light-shielding layer is disposed on the side of the substrate facing the display panel. The first light-shielding layer includes a plurality of first light-shielding parts, which are arranged in a crisscross pattern and define a plurality of openings. Each opening forms a backlight zone. Each of the backlight sources is disposed within one of the openings.

6. The display module as described in claim 1, characterized in that, The dimming layer includes multiple layers of the first lens film. The multiple layers of the first lens film are stacked in the direction from the backlight module to the display panel. The light receiving directions of two adjacent first lens film layers are the same, and the first microlenses on the two adjacent first lens film layers are aligned.

7. The display module as described in claim 1, characterized in that, A plurality of second microlenses are disposed on the side of the first substrate facing the second substrate, or a plurality of second microlenses are disposed on the side of the second substrate facing the first substrate.

8. The display module as described in claim 7, characterized in that, A plurality of second microlenses are disposed on the side of the second substrate facing the first substrate; The second lens film further includes a planarization layer, which is disposed on the side of the second substrate facing the first substrate and covers a plurality of the second microlenses. The refractive index of the planarization layer is less than the refractive index of the second microlenses.

9. A display device, characterized in that, include: The display module as described in any one of claims 1-8; as well as, A reflective component is disposed on the display side of the display module. The reflective component includes at least two reflectors for reflecting light emitted from the display module onto the windshield and forming a virtual image.

Images