Lighting display device and lighting display method

Abstract

The application relates to an illumination display device and an illumination display method. The illumination display device comprises light source modules and light valve modules arranged in sequence along a first direction; the light valve modules are configured to generate a plurality of corresponding light transmission patterns according to a plurality of preset projection images; the light source modules are configured to be partially turned on according to the plurality of preset projection images to generate a plurality of corresponding backlight light sources, the light transmission pattern and the backlight light source generated according to the same preset projection image correspond to each other, the backlight light source propagates along the first direction, and the light transmission pattern is located in the irradiation range of the corresponding backlight light source; the light source modules generate corresponding backlight light sources according to the preset projection image to be formed; the light valve modules generate corresponding light transmission patterns according to the preset projection image to be formed; and the backlight light source passes through the light transmission pattern to form the corresponding preset projection image. The illumination display device can effectively reduce energy consumption and heat generated in the operation process while ensuring the illumination brightness.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a lighting display device and a lighting display method. Background Technology

[0002] With the development of the automotive industry and the increasing complexity of traffic conditions, traffic participants not only have a demand for safe and comfortable lighting, but also a growing demand for human-vehicle and human-human interaction. Vehicle lights are no longer limited to lighting functions, but also carry functions such as vehicle-to-vehicle communication, vehicle-to-infrastructure communication, and human-vehicle interaction.

[0003] In related technologies, vehicles are equipped with lighting display devices that can generate preset patterns. The lighting display devices project the preset patterns onto the road surface to achieve vehicle-to-vehicle communication, vehicle-to-infrastructure communication, or human-vehicle interaction. The preset patterns can be turn arrows, "Caution: Vehicles" signs, or wide-body zebra crossing animations, etc.

[0004] Currently, the aforementioned lighting display devices are typically implemented using LCD technology. In order to achieve the required lighting brightness according to regulations, extremely high-power backlight sources are required, resulting in high energy consumption and severe heat generation, which cannot meet the actual driving needs. Summary of the Invention

[0005] Therefore, it is necessary to provide a lighting display device and lighting display method to address the problems of high energy consumption and severe heat generation in existing lighting display devices in order to achieve the required lighting brightness.

[0006] A lighting display device includes a light source module and a light valve module arranged sequentially along a first direction; wherein,

[0007] The light valve module is configured to generate a variety of corresponding light-transmitting patterns based on a variety of preset projection images;

[0008] The light source module is configured to be partially turned on according to a variety of preset projection images to generate a variety of corresponding backlight sources. The backlight source corresponds to the light-transmitting pattern generated according to the same preset projection image. The backlight source propagates along the first direction, and the light-transmitting pattern is located within the illumination range of the corresponding backlight source.

[0009] The light source module generates a corresponding backlight source based on the preset projection image to be formed, the light valve module generates a corresponding light-transmitting pattern based on the preset projection image to be formed, and the backlight source forms the corresponding preset projection image through the light-transmitting pattern.

[0010] In one embodiment, the light source module includes:

[0011] Multiple light source components are provided, and each set of light source components can be independently controlled to turn on or off. The corresponding light source components are turned on or off according to a variety of preset projection images, so that the light source module can generate a variety of corresponding backlight sources.

[0012] In one embodiment, the light source module further includes:

[0013] A light-diffusing layer is disposed along the first direction on the side of the multiple light source modules near the light valve module. The light-diffusing layer is used to convert the point light sources generated by the multiple light source components into surface light sources.

[0014] A brightness enhancement layer is disposed on the side of the light uniform layer away from the multiple sets of light source modules along the first direction. The brightness enhancement layer is used to concentrate the surface light source into the backlight light source that propagates along the first direction.

[0015] In one embodiment, the light valve module includes:

[0016] Multiple light valve assemblies are provided, which open or close according to the preset projection image, so that the light valve module forms the light-transmitting pattern.

[0017] In one embodiment, the light valve assembly includes:

[0018] A first polarizer and a second polarizer are arranged at intervals along the first direction, and the polarization directions of the first polarizer and the second polarizer are set at an angle.

[0019] A liquid crystal layer is disposed between the first polarizer and the second polarizer. The liquid crystal layer can deflect the vibration direction of the backlight source passing through the first polarizer, thereby allowing the backlight source to pass through or be blocked by the second polarizer.

[0020] In one embodiment, the liquid crystal layer includes:

[0021] The first electrode and the second electrode are arranged at intervals along the first direction;

[0022] Liquid crystal molecules are sandwiched between the first electrode and the second electrode. A voltage is applied between the first electrode and the second electrode to deflect the liquid crystal molecules, thereby deflecting the vibration direction of the backlight source passing through the liquid crystal layer.

[0023] In one embodiment, the thickness of the liquid crystal layer is 3μm to 4μm.

[0024] In one embodiment, the lighting display device further includes:

[0025] The projection module is located on the side of the light valve module opposite to the light source module, along the emission direction of the backlight source. The projection module is configured to project the preset projection image onto a preset projection surface.

[0026] In one embodiment, the lighting display device further includes:

[0027] The control module is communicatively connected to the application body of the lighting display device, and the control module is also communicatively connected to the light source module and the light valve module.

[0028] A lighting display method, based on the lighting display device described above, includes:

[0029] S1. Determine whether a preset projection image needs to be projected. If not, control multiple light source components to turn off. If yes, execute step S2.

[0030] S2. Control the light valve module to generate a corresponding light-transmitting pattern according to the preset projection image to be formed, and control the light source module to generate the corresponding backlight source according to the preset projection image to be formed;

[0031] S3. After a preset time, the light source component is turned off again.

[0032] In the aforementioned lighting display device, the light source module can be partially activated according to multiple preset projection images to generate multiple corresponding backlight sources. That is, different parts of the light source module can be activated to emit light according to the actual needs of the shapes of different preset projection images, thereby generating backlight sources corresponding to different preset projection images. The light valve module generates multiple corresponding light-transmitting patterns according to the multiple preset projection images. When a certain preset projection image needs to be generated, the light valve module generates a light-transmitting pattern corresponding to this preset projection image, and the light source module is partially activated to generate a backlight source corresponding to this preset projection image. When the backlight source propagates to the light valve module along the first direction, at least a portion of the backlight source can pass through the light-transmitting pattern, thereby forming this preset projection image. It is understood that at this time, the portion of the backlight source outside the light-transmitting pattern cannot pass through the light valve module and is thus blocked by the light valve module.

[0033] The aforementioned lighting display device, by setting the light source module to be partially turned on according to various preset projection images to generate various corresponding backlight sources, can selectively turn on some light source modules to form corresponding backlight sources according to the actual needs of the preset projection images to be generated, without having to turn on the light source module completely. This effectively reduces energy consumption and heat generated during operation while ensuring lighting brightness, avoiding a series of problems caused by severe overheating. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a lighting display device provided in an embodiment of the present invention.

[0035] Figure 2 This is a flowchart of a lighting display method provided in an embodiment of the present invention.

[0036] The above figures include the following reference numerals:

[0037] 1. Light source module; 11. Light source assembly; 12. Light uniform layer; 13. Brightness enhancement layer;

[0038] 2. Light valve module;

[0039] 3. Projection module;

[0040] 4. Preset projection surface. Detailed Implementation

[0041] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] like Figure 1 As shown, one embodiment of this application provides a lighting display device, which includes a light source module 1 and a light valve module 2 arranged sequentially along a first direction. The light valve module 2 is configured to generate multiple corresponding light-transmitting patterns based on multiple preset projection images. The light source module 1 is configured to be partially activated based on the multiple preset projection images to generate multiple corresponding backlight sources. The light-transmitting patterns generated based on the same preset projection image correspond to the backlight sources. The backlight sources propagate along the first direction, and the light-transmitting patterns are located within the illumination range of the corresponding backlight sources. The light source module 1 generates corresponding backlight sources based on the desired preset projection image, and the light valve module 2 generates corresponding light-transmitting patterns based on the desired preset projection image. The backlight sources pass through the light-transmitting patterns to form the corresponding preset projection image. For example... Figure 1 The X direction is the first direction.

[0048] The light source module 1 can be partially activated according to various preset projection images to generate various corresponding backlight sources. That is, different parts of the light source module 1 can be activated to emit light according to the actual needs of different preset projection image shapes, thus generating backlight sources corresponding to different preset projection images. The light valve module 2 generates various corresponding light-transmitting patterns according to the various preset projection images. When a certain preset projection image needs to be generated, the light valve module generates a light-transmitting pattern corresponding to this preset projection image, and the light source module is partially activated to generate a backlight source corresponding to this preset projection image. When the backlight source propagates along the first direction to the light valve module 2, at least a portion of the backlight source can pass through the light-transmitting pattern, thereby forming this preset projection image. It is understood that at this time, the portion of the backlight source outside the light-transmitting pattern cannot pass through the light valve module 2 and is therefore blocked by the light valve module 2.

[0049] By setting the light source module 1 to be partially turned on according to various preset projection images to generate various corresponding backlight sources, the light source module 1 can be turned on selectively to form corresponding backlight sources according to the actual needs of the preset projection images to be generated, without having to turn on the light source module 1 completely. This effectively reduces energy consumption and heat generated during operation while ensuring illumination brightness, avoiding a series of problems caused by severe overheating.

[0050] It should be noted that various preset projection images can be set according to actual needs, and no limitation is made here.

[0051] In some optional embodiments, the light source module 1 includes multiple sets of light source components 11, which can be independently controlled to turn on or off. The corresponding light source components 11 are turned on or off according to a variety of preset projection images, so that the light source module 1 generates a variety of corresponding backlight sources.

[0052] The corresponding light source component 11 can be selectively turned on according to the preset projection image. For example, the light source module 1 includes n sets of light source components 11. When a certain preset projection image is formed, even if m sets of light source components 11 emit light, they need to be blocked by the light valve module 2. That is, the presentation of this preset projection image does not require the backlight source in the area where these m sets of light source components 11 are located. In this case, these m sets of light source components 11 can be turned off directly, and only the other nm sets of light source components 11 can be turned on. That is, the backlight source generated by the other nm sets of light source components is the backlight source corresponding to this preset projection image.

[0053] In some alternative embodiments, the light source assembly 11 includes a plurality of LED chips arranged in a matrix, which are used to generate a light beam. The light source assembly 11 contains a plurality of LED chips, and the combined illumination of the plurality of LED chips can provide sufficient backlight brightness to ensure that the preset projected image is clearly visible.

[0054] In other alternative embodiments, the light source assembly 11 may also include high-brightness light sources such as light-emitting diodes and laser diodes, which are not limited here.

[0055] It should be noted that the number of light source components 11 can be determined according to actual needs. The more light source components 11 there are, the higher the probability that the backlight source generated by the light source module 1 according to the preset projection image passes through the light valve module 2. In other words, the utilization rate of the backlight source generated by the light source module 1 is higher, and the energy consumption of this lighting display device is correspondingly lower.

[0056] like Figure 1 As shown, in some optional embodiments, the light source module 1 further includes a light-diffusing layer 12 and a brightness-enhancing layer 13. Along the first direction, the light-diffusing layer 12 is disposed on the side of the multiple light source components 11 near the light valve module 2, and the light-diffusing layer 12 is used to convert the point light source generated by the multiple light source components 11 into a surface light source; along the first direction, the brightness-enhancing layer 13 is disposed on the side of the light-diffusing layer 12 away from the multiple light source modules 1, and the brightness-enhancing layer 13 is used to concentrate the surface light source into a backlight source that propagates along the first direction.

[0057] The light beam generated by the LED chip in the light source component 11 is in the form of a point light source, which has directionality and non-uniformity. After passing through the light uniform layer 12, the point light source will undergo multiple scattering and reflections inside the light uniform layer 12, thereby transforming the point light source into a uniformly distributed surface light source. The surface light source after being transformed by the light uniform layer 12 illuminates the brightness enhancement layer 13. The brightness enhancement layer 13 collects and concentrates the light that was originally scattered in all directions, so that the light from all directions propagates in the first direction after being collected and concentrated, thereby improving the brightness of the backlight source.

[0058] The uniform light layer 12 converts the light beam into a uniform surface light source, making the light intensity distribution of the backlight source uniform and avoiding problems such as uneven brightness in the preset projection image caused by uneven light. The brightening layer 13 concentrates the light to propagate along the first direction, thereby increasing the brightness of the backlight source and making the preset projection image brighter.

[0059] In some embodiments, the light-diffusing layer 12 is a light-diffusing film.

[0060] In some embodiments, the brightening layer 13 is a prism film.

[0061] In some optional embodiments, the light valve module 2 includes multiple sets of light valve components. The light valve components open or close according to a preset projection image, so that the multiple sets of light valve modules 2 form a light-transmitting pattern. According to the preset projection image, the corresponding light valve components are opened or closed, so that the light valve module 2 forms a light-transmitting pattern corresponding to the preset projection image. When the backlight source propagates to the light valve module 2 along the first direction, at least part of the backlight source can pass through the light-transmitting pattern, thereby forming the preset projection image.

[0062] In some alternative embodiments, the light valve assemblies are arranged in a matrix.

[0063] It should be noted that the more light valve components there are, the more accurate the preset projected image that the lighting display device can produce.

[0064] In some alternative embodiments, the light valve assembly includes a first polarizer, a second polarizer, and a liquid crystal layer. The first polarizer and the second polarizer are arranged at a distance along a first direction, and the polarization directions of the first polarizer and the second polarizer are set at an angle. The backlight source passes through the first polarizer and the second polarizer in sequence. The liquid crystal layer is disposed between the first polarizer and the second polarizer. The liquid crystal layer can deflect the vibration direction of the backlight source passing through the first polarizer, thereby allowing the backlight source to pass through or be blocked by the second polarizer.

[0065] The backlight source includes light vectors vibrating in various directions. When the backlight source propagates to the first polarizer, the first polarizer only allows light vibration components with the same polarization direction to pass through, while blocking light vibration components in other directions. This makes the backlight source passing through the first polarizer polarized light into polarized light with the vibration direction consistent with the polarization direction of the first polarizer. The liquid crystal layer can change the vibration direction of the backlight source passing through the first polarizer. If the vibration direction of the backlight source is consistent with the polarization direction of the second polarizer after the change, the backlight source can pass through the second polarizer. If the vibration direction of the backlight source is perpendicular to the polarization direction of the second polarizer after the change, the backlight source cannot pass through the second polarizer.

[0066] In other words, by controlling the liquid crystal layer, the light valve assembly can be controlled to open or close. It can be understood that the light valve assembly that allows the backlight source to pass through is in the open state, and the light valve assembly that does not allow the backlight source to pass through is in the closed state, thereby making the light valve module 2 form a light-transmitting pattern.

[0067] In some alternative embodiments, the polarization directions of the first polarizer and the second polarizer are set perpendicularly.

[0068] In some optional embodiments, the liquid crystal layer includes a first electrode, a second electrode, and liquid crystal molecules, with the first and second electrodes arranged at a distance along a first direction. The liquid crystal molecules are sandwiched between the first and second electrodes. A voltage is applied between the first and second electrodes to deflect the liquid crystal molecules, thereby deflecting the vibration direction of the backlight source passing through the liquid crystal layer. When a voltage is applied between the first and second electrodes, an electric field is generated between the electrodes, causing the liquid crystal molecules to be deflected by the electric field force, thus deflecting the vibration direction of the backlight source passing through the liquid crystal layer.

[0069] In some alternative embodiments, the first electrode and the second electrode have the same structure. Taking the first electrode as an example, the first electrode includes a glass substrate and a transparent electrode disposed on the glass substrate. Specifically, the transparent electrode is formed by coating the glass substrate with a transparent conductive oxide (ITO). By disposing the first electrode in this way, the light transmittance of the liquid crystal layer can be improved.

[0070] In some alternative embodiments, the thickness of the liquid crystal layer is 3μm to 4μm. The thinner liquid crystal layer allows the electric field to act on all liquid crystal molecules more quickly when applied, enabling the light valve assembly to switch between light transmission and blocking states in a shorter time. This reduces response delay and allows for rapid switching of the light-transmitting convex shape, thereby enabling rapid switching of the preset projected image.

[0071] In some optional embodiments, the lighting display device further includes a projection module 3, which is disposed behind the light valve module 2 along the emission direction of the backlight source. The projection module 3 is configured to project a preset projection image onto a preset projection surface 4. By setting the projection module 3 to project the preset projection image onto the preset projection surface 4, the preset projection image can be displayed at a preset projection position.

[0072] In some alternative embodiments, the projection module 3 may include multiple convex lenses, which are used in combination to optimize the propagation path of light, so that the preset projection image can be projected onto the preset projection surface 4, thereby reducing distortion.

[0073] In some alternative embodiments, the projection module 3 includes a concave-convex lens, which enables the preset projection image to be magnified after being projected onto the preset projection surface 4, thereby increasing the size of the preset projection image projected onto the preset projection surface 4.

[0074] In some alternative embodiments, the projection module 3 includes a plane mirror. When the preset projection surface 4 is set at a certain angle to the emission direction of the backlight source, the path of the light is adjusted by the plane mirror so that the preset projection image can be projected onto the preset projection surface 4.

[0075] In some optional embodiments, the lighting display device further includes a control module, which is communicatively connected to the application subject of the lighting display device, and also communicatively connected to the light source module 1 and the light valve module 2. The control module can receive information from the application subject and preset display strategies, thereby sending instructions to the light source module 1 and the light valve module 2 to generate a preset projected image.

[0076] In some alternative embodiments, the control module may be a functional module implemented in hardware and / or software. The hardware may include hardware devices with data processing capabilities such as a central processing unit, chipset, and microprocessor, or a combination of the above hardware devices. The software may be an operating system, driver program, etc. This embodiment is not limited thereto.

[0077] In some optional embodiments, the application subject is the vehicle, and the control module is communicatively connected to the vehicle. Specifically, the control module is communicatively connected to the vehicle controller to receive signals from sensors in the vehicle, such as steering information, speed information, and pedestrian information around the vehicle. Based on the received steering, speed, and pedestrian information, the control module generates corresponding image signals and sends control commands to the light source module 1 and the light valve module 2. This causes the light source module 1 to generate backlight in the corresponding area, and the light valve module 2 to form a corresponding light-transmitting pattern, thereby projecting a preset projection image corresponding to the image signal. Examples include turn arrows, "Caution: Vehicles" signs, or wide-body zebra crossing animations.

[0078] In some alternative embodiments, the preset projection is the road surface.

[0079] like Figure 2 As shown, one embodiment of this application provides a lighting display method, based on the above-described lighting display device, specifically including the following steps:

[0080] S1. Determine whether a preset projection image needs to be projected. If not, control the multiple light source components 11 to turn off. If yes, execute step S2.

[0081] S2. Control the light valve module 2 to generate the corresponding light-transmitting pattern according to the preset projection image to be formed, and control the light source module 1 to generate the corresponding backlight source according to the preset projection image to be formed.

[0082] S3. After a preset time, the light source module 1 is turned off again.

[0083] First, it is determined whether a preset projection image needs to be projected. If not, the light source module 1 is turned off. If a preset projection image needs to be projected, the light valve module 2 is controlled to generate a corresponding light-transmitting pattern based on the desired preset projection image, and the light source module 1 is controlled to generate a corresponding backlight source based on the desired preset projection image, thereby forming the preset projection image. At this time, the lighting display device can perform interactive functions, realizing vehicle-to-vehicle communication, vehicle-to-infrastructure communication, and human-vehicle interaction. After the preset projection time has elapsed, the light source module 1 returns to the off state.

[0084] It should be noted that the preset duration can be set according to actual needs and is not limited here.

[0085] In some alternative embodiments, this lighting display device includes a control module. In this lighting display method, the control module is responsible for determining whether a preset projection image needs to be projected and for determining the specific type of the preset projection image.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A lighting display device, characterized in that, The lighting display device includes a light source module (1) and a light valve module (2) arranged sequentially along a first direction; wherein, The light valve module (2) is configured to generate a variety of corresponding light-transmitting patterns based on a variety of preset projection images; The light source module (1) is configured to be partially turned on according to a variety of preset projection images to generate a variety of corresponding backlight sources. The light-transmitting pattern generated according to the same preset projection image corresponds to the backlight source. The backlight source propagates along the first direction, and the light-transmitting pattern is located within the illumination range of the corresponding backlight source. The light source module (1) generates the corresponding backlight source according to the preset projection image to be formed, and the light valve module (2) generates the corresponding light-transmitting pattern according to the preset projection image to be formed. The backlight source forms the corresponding preset projection image through the light-transmitting pattern.

2. The lighting display device according to claim 1, characterized in that, The light source module (1) includes: Multiple light source components (11) are provided, and the multiple light source components (11) can be independently controlled to be turned on or off. The corresponding light source components (11) are turned on or off according to a variety of preset projection images, so that the light source module generates a variety of corresponding backlight sources.

3. The lighting display device according to claim 2, characterized in that, The light source module (1) also includes: A light-diffusing layer (12) is disposed along the first direction on one side of the multiple sets of light source modules (1) near the light valve module (2). The light-diffusing layer (12) is used to convert the point light source generated by the multiple sets of light source components (11) into a surface light source. Brightening layer (13), along the first direction, the brightening layer (13) is disposed on the side of the light uniform layer (12) away from the multiple sets of light source modules (1), the brightening layer (13) is used to concentrate the surface light source into the backlight light source that propagates along the first direction.

4. The lighting display device according to claim 1, characterized in that, The light valve module (2) includes: Multiple light valve components are provided, which open or close according to the preset projection image so that the light valve module (2) forms the light-transmitting pattern.

5. The lighting display device according to claim 4, characterized in that, The light valve assembly includes: A first polarizer and a second polarizer are arranged at intervals along the first direction, and the polarization directions of the first polarizer and the second polarizer are set at an angle. A liquid crystal layer is disposed between the first polarizer and the second polarizer. The liquid crystal layer can deflect the vibration direction of the backlight source passing through the first polarizer, thereby allowing the backlight source to pass through or be blocked by the second polarizer.

6. The lighting display device according to claim 5, characterized in that, The liquid crystal layer includes: The first electrode and the second electrode are arranged at intervals along the first direction; Liquid crystal molecules are sandwiched between the first electrode and the second electrode. A voltage is applied between the first electrode and the second electrode to deflect the liquid crystal molecules, thereby deflecting the vibration direction of the backlight source passing through the liquid crystal layer.

7. The lighting display device according to claim 5, characterized in that, The thickness of the liquid crystal layer is 3μm~4μm.

8. The lighting display device according to claim 1, characterized in that, The lighting display device further includes: The projection module (3) is located on the side of the light valve module (2) away from the light source module (1) along the emission direction of the backlight source. The projection module (3) is configured to project the preset projection image onto the preset projection surface (4).

9. The lighting display device according to claim 1, characterized in that, The lighting display device further includes: The control module is communicatively connected to the main application of the lighting display device, and is also communicatively connected to the light source module (1) and the light valve module (2).

10. A lighting display method, based on the lighting display device as described in any one of claims 1-9, characterized in that, include: S1. Determine whether a preset projection image needs to be projected. If not, control the light source module (1) to turn off. If yes, execute step S2. S2. Control the light valve module (2) to generate a corresponding light-transmitting pattern according to the preset projection image to be formed, and control the light source module (1) to generate the corresponding backlight source according to the preset projection image to be formed; S3. After a preset time, the light source module (1) is turned off again.

Images