Display device

Abstract

The invention provides a display device which comprises a backlight module, the backlight module comprises a substrate, a plurality of first light-emitting units and a plurality of second light-emitting units, the first light-emitting units have first optical characteristics, the second light-emitting units have second optical characteristics, and the first optical characteristics are different from the second optical characteristics. The first light-emitting units and the second light-emitting units are distributed on the substrate in an array mode, and at least one first light-emitting unit is adjacent to the second light-emitting unit. The display panel is arranged on the light emitting side of the backlight module, the display panel comprises a plurality of pixel units distributed in an array mode, and the light emitting area of each first light emitting unit or each second light emitting unit correspondingly covers at least two pixel units. According to the display device, efficient and accurate control in a complex scene can be achieved, meanwhile, energy consumption is reduced, and the energy efficiency ratio is increased.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and particularly to a display device. Background Art

[0002] With the continuous development of display technology and the increasing diversification of application scenarios, display devices equipped with LED (Light Emitting Diode) technology (such as Mini LED products) are facing unprecedented performance challenges. Mini LED technology significantly improves the contrast and energy efficiency of display devices by reducing the chip size to 50 - 200 μm and combining 1000 - 10000 - level zoning control.

[0003] However, traditional display devices usually adopt a single backlight module design, such as direct - lit or edge - lit backlights, where the spacing of light - emitting units (such as LED lamp beads) is uniform and the optical characteristics (such as light - emitting angle, brightness) are consistent. This design is unable to cope with complex display requirements. For example, in scenarios where high brightness and high contrast need to be ensured simultaneously, the traditional design often has difficulty balancing the relationship between the two.

[0004] To solve the above problems, some advanced display devices have started to adopt a zoned dimming strategy. This strategy forms backlight zones through multiple light - emitting units, and each zone corresponds to multiple pixel units (for example, in a 4K display panel, a single zone covers 100 to 200 pixel units), and dynamic contrast control is achieved through zoned brightness adjustment. However, while this strategy improves performance, it also brings an increase in hardware costs and energy consumption. Summary of the Invention

[0005] An embodiment of the present application provides a display device that can achieve efficient and precise control in complex scenarios, while reducing energy consumption and improving the energy efficiency ratio.

[0006] An embodiment of the present application provides a display device, including:

[0007] A backlight module, the backlight module includes a substrate, a plurality of first light - emitting units, and a plurality of second light - emitting units. The first light - emitting units have a first optical characteristic, the second light - emitting units have a second optical characteristic, the first optical characteristic is different from the second optical characteristic, and the plurality of first light - emitting units and the plurality of second light - emitting units are arranged in an array on the substrate, and at least one of the first light - emitting units is adjacent to the second light - emitting units;

[0008] A display panel, the display panel is disposed on the light - emitting side of the backlight module, and the display panel includes a plurality of pixel units arranged in an array, and the light - emitting area of each of the first light - emitting units or each of the second light - emitting units correspondingly covers at least two of the pixel units.

[0009] In some embodiments, multiple rows of the first light-emitting units and multiple rows of the second light-emitting units are arranged in a periodic and alternating manner.

[0010] In some embodiments, when the size of the display panel is greater than or equal to a preset size, the row ratio of the first light-emitting units to the second light-emitting units is 1:1; when the size of the display panel is less than the preset size, the row ratio of the first light-emitting units to the second light-emitting units is 2:1.

[0011] In some embodiments, the first optical characteristic includes a first emission angle, the second optical characteristic includes a second emission angle, and the first emission angle is greater than the second emission angle; wherein, the range of the first emission angle is greater than or equal to 30°, and the range of the second emission angle is less than 30°.

[0012] In some embodiments, the first light-emitting unit includes a first light-emitting chip and a first optical component, and the first optical component is configured to expand the emission angle of the light emitted by the first light-emitting chip to the first emission angle; the second light-emitting unit includes a second light-emitting chip and a second optical component, and the second optical component is configured to limit the emission angle of the light emitted by the second light-emitting chip to the second emission angle.

[0013] In some embodiments, the first optical component is a reflective lens, a first accommodation cavity is provided at the bottom of the first optical component, the first accommodation cavity is configured to accommodate the first light-emitting chip, a first groove is provided at the top of the first optical component, the inner wall of the first groove forms a reflecting surface, and the side wall of the first optical component forms a first refracting surface.

[0014] In some embodiments, the second optical component is a refractive lens, a second accommodation cavity is provided at the bottom of the second optical component, the second accommodation cavity is configured to accommodate the second light-emitting chip, a second groove is provided at the top of the second optical component, the inner wall of the second groove forms a second refracting surface, and the side wall of the second optical component forms a third refracting surface.

[0015] In some embodiments, the display device further includes a processor, the processor is electrically connected to the backlight module and the display panel respectively, and the processor is configured to provide a differential signal to the display panel and provide a control instruction to the backlight module.

[0016] In some embodiments, the backlight module further includes a backlight control chip, which is electrically connected to the processor, the first light-emitting unit, and the second light-emitting unit respectively. The backlight control chip is configured to convert the control instructions of the processor into execution instructions for the first light-emitting unit and the second light-emitting unit.

[0017] In some embodiments, the display device further includes a power supply, which is electrically connected to the backlight module and the display panel respectively. The power supply is configured to provide current signals to the first light-emitting unit, the second light-emitting unit, and the display panel.

[0018] In the display device provided by the embodiments of the present application, the display device includes a backlight module and a display panel. The backlight module includes a substrate, a plurality of first light-emitting units, and a plurality of second light-emitting units. The first light-emitting unit has a first optical characteristic, and the second light-emitting unit has a second optical characteristic, and the first optical characteristic is different from the second optical characteristic. Through the combination of the first light-emitting unit and the second light-emitting unit, the limitation of the traditional single backlight module design is broken, enabling the display device to simultaneously meet the requirements of high brightness and high contrast, and significantly improving the display effect in complex scenarios. The plurality of first light-emitting units and the plurality of second light-emitting units are arranged in an array on the substrate, and at least one first light-emitting unit is adjacent to the second light-emitting unit. The display panel is disposed on the light-emitting side of the backlight module. The display panel includes a plurality of pixel units arranged in an array, and the light-emitting area of each first light-emitting unit or each second light-emitting unit correspondingly covers at least two pixel units. This array layout optimizes the spatial efficiency of the optical system, enabling the light output of a single light-emitting unit to cover the display requirements of multiple pixel units. Thus, on the premise of maintaining pixel-level light control accuracy, a significant reduction in the number of light-emitting units is achieved. Due to the reduction in the light-emitting unit density, the number of channels required for the driving circuit and the complexity of the power management module both decrease exponentially, directly resulting in a reduction in hardware costs, and having the advantages of reducing energy consumption and improving the energy efficiency ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the first structure of the display device provided by the embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the second structure of the display device provided by the embodiment of the present application.

[0022] Figure 3 It is Figure 1 an enlarged schematic view of the partial A.

[0023] Figure 4 It is a schematic view of the scenario provided by the embodiment of the present application.

[0024] Figure 5 It is the light-emitting state of the backlight module provided by the embodiment of the present application under different area display modes: (1) is the light-emitting state under the high-brightness display mode; (2) is the light-emitting mode under the normal display mode; (3) is the light-emitting mode under the halo suppression mode.

[0025] Figure 6 It is a schematic structural view of the first optical component provided by the embodiment of the present application.

[0026] Figure 7 It is a schematic structural view of the second optical component provided by the embodiment of the present application.

[0027] Figure 8 It is Figure 6 a schematic cross-sectional view taken at B-B.

[0028] Figure 9 It is Figure 7 a schematic cross-sectional view taken at C-C.

[0029] Figure 10 It is the third schematic structural view of the display device provided by the embodiment of the present application. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 efforts shall fall within the protection scope of the present application.

[0031] The embodiment of the present application provides a display device, which can achieve efficient and precise control in complex scenarios, while reducing energy consumption and improving the energy efficiency ratio. The following is a specific description in conjunction with the accompanying drawings.

[0032] Please refer to Figure 1 and Figure 2 , Figure 1 It is the first schematic structural view of the display device provided by the embodiment of the present application, Figure 2 It is the second schematic structural view of the display device provided by the embodiment of the present application.

[0033] An embodiment of the present application provides a display device 100, which includes a backlight module 10 and a display panel 20.

[0034] The backlight module 10 is a key component of the display device 100. Its main function is to provide uniform and stable light for the display panel 20, enabling the display panel 20 to display images normally. The backlight module 10 is usually composed of components such as a light source (such as a light-emitting diode LED, etc.), a light guide plate, and optical films. By reasonably designing the structures and layouts of the components, effective regulation and uniform output of light are achieved.

[0035] The backlight module 10 includes a substrate 11, a plurality of first light-emitting units 12, and a plurality of second light-emitting units 13. The substrate 11 is selected as a flexible printed circuit board (Flexible Printed Circuit, abbreviated as FPC) or a glass substrate 11, which not only builds an electrical interconnection bridge for the light-emitting units but also provides a stable mechanical support. High-precision metal traces are arranged on the surface of the substrate 11, effectively ensuring the stability of signal transmission.

[0036] The first light-emitting unit 12 and the second light-emitting unit 13 each have unique optical characteristics and are different from each other. Specifically, the first light-emitting unit 12 has a first optical characteristic, and the second light-emitting unit 13 has a second optical characteristic. For example, the first optical characteristic can be wide-angle light emission, and the light can spread in all directions; the second optical characteristic is narrow-angle light emission, where the light is more concentrated and can be accurately emitted.

[0037] A plurality of first light-emitting units 12 and a plurality of second light-emitting units 13 are arranged in an array on the substrate 11, and at least one first light-emitting unit 12 is adjacent to the second light-emitting unit 13. Through the combination of the first light-emitting unit 12 and the second light-emitting unit 13, the limitations of the traditional single backlight module 10 design are broken, enabling the display device 100 to simultaneously meet the requirements of high brightness and high contrast, and significantly improving the display effect in complex scenarios.

[0038] The display panel 20 is arranged on the light-emitting side of the backlight module 10, and the display panel 20 includes a plurality of pixel units 21 arranged in an array.

[0039] The display panel 20 refers to the core component for realizing the image display function. It is usually composed of a large number of pixel units 21 (PixelUnit) arranged in a specific pattern, and the complete image information is presented by controlling the light-emitting states (such as brightness, color, etc.) of each pixel unit 21. There are various types of display panels 20, such as liquid crystal display panels 20 (LCD Panel), organic light-emitting diode display panels 20 (OLED Panel), etc., which are widely used in various display devices 100 (such as mobile phones, TVs, tablet computers, etc.).

[0040] The pixel unit 21 is the smallest imaging unit of the display panel 20. Each pixel unit 21 is usually composed of three sub-pixels, namely red (R), green (G), and blue (B). By independently controlling the light-emitting intensity of each sub-pixel, different colors can be mixed to form a rich and colorful image. Parameters such as the arrangement pattern and density of the pixel units 21 directly affect performance indicators such as the resolution and display effect of the display panel 20.

[0041] In the backlight module 10, the first light-emitting unit 12 and the second light-emitting unit 13 excite the light-emitting material through electric energy, converting the electric energy into light energy. Their optical characteristics (such as light-emitting angle, brightness, color temperature, etc.) play a decisive role in the overall performance of the backlight module 10.

[0042] The array layout of multiple pixel units 21 is a mature technology that has been verified through long-term practice and is widely adopted. Its advantage lies in being able to achieve high-precision display of images through regular pixel arrangements. Each pixel unit 21, as the basic imaging unit of the display panel 20, undertakes the function of displaying a specific color and brightness. In color displays, the pixel unit 21 is usually composed of three sub-pixels: red, green, and blue. By precisely controlling the light-emitting intensity of these three sub-pixels and based on the principle of trichromatic mixing, the display of more than 16 million colors can be achieved, thus meeting the human eye's demand for rich colors.

[0043] For example, in the display panel 20 of a high-definition TV, the array density of the pixel units 21 is extremely high, and the number of pixels per inch (Pixels Per Inch, PPI) is usually used as a measurement index. The PPI of TV products can reach several hundred or even thousands, which means that a large number of pixel units 21 are distributed in a very small display area, thereby enabling a delicate and realistic image display effect.

[0044] In the embodiments of the present application, by adopting a combination of the first light-emitting unit 12 and the second light-emitting unit 13 with different optical characteristics, a better light source is provided for the display panel 20. The light-emitting area of each first light-emitting unit 12 or each second light-emitting unit 13 correspondingly covers at least two pixel units 21.

[0045] Analyzed from the optical principle, the traditional layout method where a single light-emitting unit corresponds to a single pixel unit 21, although it can achieve relatively precise pixel-level light control, will result in an excessive number of light-emitting units, thus bringing a series of problems. For example, the increase in the number of light-emitting units will cause a significant increase in the number of channels of the driving circuit, resulting in an increase in hardware costs and circuit complexity. At the same time, it will also increase the burden on the power supply and reduce the energy efficiency ratio of the system.

[0046] In this application, the light-emitting area of each light-emitting unit covers at least two pixel units 21. By reasonably planning the layout and optical characteristics of the light-emitting units, the number of light-emitting units can be significantly reduced while ensuring the pixel-level light control accuracy. Taking a display panel 20 with a resolution of 1920×1080 as an example, if the traditional layout method is adopted, millions of light-emitting units may be required; while adopting the layout method of this application, the number of light-emitting units can be reduced by 30% to 50%. This not only reduces the hardware cost, but also simplifies the design of the driving circuit and power supply, and improves the stability and reliability of the system.

[0047] In addition, from the perspective of the actual application effect, this design can optimize the space efficiency of the optical system. After the light emitted by the light-emitting unit is modulated by the display panel 20, it can illuminate multiple pixel units 21 more evenly, reduce the loss of light during transmission, and improve the light efficiency output. At the same time, due to the reduction in the number of light-emitting units, the interference between adjacent light-emitting units is also correspondingly reduced, further enhancing the contrast and color uniformity of the display screen, so that the display device 100 can present a clearer and more realistic image effect in complex scenarios (such as high-brightness environments, high-contrast image displays, etc.).

[0048] For example, in a 32-inch display module, the OD (Optical Distance, mixing light distance) of the display module is 8 mm, with 516 partitions, corresponding to 516 light-emitting units (264 first light-emitting units 12 and 252 second light-emitting units 13) covering multiple pixel units 21, which can adapt to complex scenarios (such as local high brightness, halo suppression), and optimize the halo and dark state detail performance by adjusting the duty ratio of light-emitting units with different light types.

[0049] Please refer to Figure 1 and Figure 3 , Figure 3 is Figure 1 an enlarged schematic diagram of the partial A of. In some embodiments, multiple rows of first light-emitting units 12 and multiple rows of second light-emitting units 13 are arranged in a periodic alternating manner. The periodic alternating arrangement refers to the layout method in which the first light-emitting units 12 and the second light-emitting units 13 are arranged in a certain pattern and order, repeating in turn in units of multiple rows. The periodic alternating arrangement can realize the regular distribution of different optical characteristic regions, so that the backlight module 10 can flexibly adjust the optical performance of each region according to different display scenarios and requirements, thereby optimizing the overall display effect.

[0050] For example, the first light-emitting units 12 in the 22nd row and the second light-emitting units 13 in the 21st row are arranged alternately, ensuring that the optical characteristics (such as the light diffusion range or the light concentration accuracy) in different regions can be flexibly switched according to the scene requirements. The alternating arrangement can ensure that the optical characteristics (such as the light diffusion range or the light concentration accuracy) in different regions of the backlight module 10 can be flexibly switched according to the actual scene requirements.

[0051] In practical applications, the display scenarios are complex and diverse. Some scenarios require large-area uniform illumination. For example, when watching a documentary about natural scenery, the display panel 20 needs to have a large light diffusion range to ensure the brightness uniformity of the entire screen (brightness uniformity refers to the degree of consistency of the brightness distribution in each region on the surface of the display panel 20, usually measured by indicators such as the percentage of brightness difference or the standard deviation. The better the brightness uniformity, the better the overall visual effect of the display screen); while some scenarios have high requirements for local high-precision illumination. For example, when displaying text, icons, or high-contrast images, a high light concentration accuracy is required to ensure clear edges and no halos. Through this periodic alternating arrangement, the first light-emitting units 12 and the second light-emitting units 13 can respectively play their advantages and adjust the optical characteristics of each region in real time according to the scene requirements, so as to meet the diverse display needs.

[0052] Among them, when the size of the display panel 20 is greater than or equal to the preset size, the row ratio of the first light-emitting units 12 to the second light-emitting units 13 is 1:1. When the size of the display panel 20 is less than the preset size, the row ratio of the first light-emitting units 12 to the second light-emitting units 13 is 2:1. The preset size is a size threshold preset to distinguish the row ratio settings of the light-emitting units under different sizes of the display panel 20. As a judgment basis, the preset size enables the backlight module 10 to adopt the most suitable row ratio of the light-emitting units for different sizes of the display panel 20 to achieve the best display effect and performance balance.

[0053] The preset size can be 32 inches. For example, when the size of the display panel 20 is greater than or equal to 32 inches, a 1:1 ratio is adopted, such as 12 rows of the first light-emitting units 12 and 12 rows of the second light-emitting units 13. This ratio setting has significant advantages in balancing halo suppression and brightness uniformity.

[0054] In a large-size display panel 20, due to the large display area and the long light propagation distance, brightness non-uniformity and halo phenomena are likely to occur. The larger light-emitting angle of the first light-emitting units 12 can make the light spread more widely and illuminate a larger area of the display panel 20, which helps to improve the brightness uniformity; the smaller light-emitting angle of the second light-emitting units 13 can provide a high-precision light concentration effect in a specific area (such as the edge of a high-contrast image), effectively suppressing the generation of halos.

[0055] With a 1:1 row ratio, the two light-emitting units cooperate with each other, which can significantly reduce the halo phenomenon while ensuring the uniform brightness of the overall picture, and improve the clarity and contrast of the picture. Taking large commercial or household displays as an example, when playing an advertisement picture, there are both large-area background images and high-brightness text and icons in the picture. Using this periodic alternating arrangement with a 1:1 row ratio can make the background image have uniform brightness, the edges of the text and icons are clear, and there is no halo interference, presenting a high-quality display effect for the audience.

[0056] When the size of the display panel 20 is smaller than the preset size, such as when applied to portable display devices such as smartphones and tablets, the row ratio of the first light-emitting unit 12 to the second light-emitting unit 13 is adjusted to 2:1. For example, when the size of the display panel 20 is smaller than 32 inches, a 2:1 ratio is adopted, such as 16 rows of the first light-emitting unit 12 and 8 rows of the second light-emitting unit 13. In a small-size display panel 20, due to the relatively small display area, higher requirements are placed on the fineness and brightness uniformity of the picture, and at the same time, hardware costs and space limitations need to be considered. By increasing the row ratio of the first light-emitting unit 12, the larger light-emitting angle is used to achieve uniform diffusion of light in a smaller space, ensuring the brightness consistency of each area of the display panel 20; while appropriately reducing the row ratio of the second light-emitting unit 13, the hardware cost and the complexity of the backlight module 10 are reduced on the premise of ensuring a certain halo suppression ability in the key areas (such as the text and icon display areas).

[0057] Taking a smartphone as an example, in daily use, users need to view the screen content in different scenarios, such as browsing the web, watching videos, playing games, etc. When browsing the web, the screen needs to have good brightness uniformity to ensure the clear display of text and pictures; while when playing some games that require high-contrast pictures, it is necessary to effectively suppress halos to ensure the realism and immersion of the game pictures. Using the periodic alternating arrangement with a 2:1 row ratio, the first light-emitting unit 12 can fully illuminate most areas of the display panel 20 to ensure brightness uniformity; the second light-emitting unit 13 plays a role in the key areas to reduce the halo phenomenon and meet the usage requirements of users in different scenarios.

[0058] Among them, the first optical property includes a first emission angle, and the second optical property includes a second emission angle, and the first emission angle is greater than the second emission angle; among them, the range of the first emission angle is greater than or equal to 30°, such as 30°, 40°, 50°, 60°, 70° or 80°, and the range of the second emission angle is less than 30°, such as 2°, 5°, 10°, 20°, 25° or 29°. This differential emission angle design provides a basis for adjusting the optical properties of different regions. It should be specifically noted that although 30° is used as the demarcation threshold between the large angle (the first emission angle) and the small angle (the second emission angle) in the foregoing embodiments, this threshold can be flexibly adjusted according to the scene requirements in actual applications. For example, in other embodiments, 45°, 50° or 60° can also be used as the demarcation standard, and this parametric design can adapt to the needs of a wider range of optical systems.

[0059] It is worth noting that the emission angle refers to the angular range formed by the light emitted by the light-emitting unit when propagating in space and the central axis of the light-emitting unit. Within this angular range, the luminous intensity of the light-emitting unit reaches a certain proportion (usually the angular range corresponding to the full width at half maximum), which is a key parameter for measuring the directivity of the light propagation of the light-emitting unit. Different emission angles determine the diffusion range and intensity distribution of light in space. The large emission angle of the first light-emitting unit 12 and the small emission angle of the second light-emitting unit 13 are respectively applicable to different display areas and scene requirements to achieve specific optical effects.

[0060] The first emission angle is applicable to the normal display mode. In the area applicable to the normal display mode, a too high light-condensing accuracy is not required, but it is required that the light can evenly cover a large range to provide a stable background brightness. For example, when displaying a landscape photo, the background part of the photo usually requires uniform light irradiation, and the large-angle optical property of the first light-emitting unit 12 can meet this requirement, making the background colorful and the transition natural.

[0061] The second emission angle is applicable to the halo suppression mode. In the area applicable to the halo suppression mode, a high light-condensing accuracy is required for the light, and it is required that the light can be concentrated on a specific area to reduce the scattering and overflow of the light. For example, when displaying text or icons, the clarity of the edges is crucial. The small-angle optical property of the second light-emitting unit 13 can make the light accurately irradiate on the text or icons, reducing the halo interference in the surrounding area and improving the clarity and readability of the picture. Halo suppression refers to reducing or eliminating the unintended bright edges or halo phenomena generated in the display screen due to light scattering or overflow to improve the clarity and contrast of the picture. The halo phenomenon will seriously affect the quality of the display screen. Especially when displaying high-contrast images or text, the halo will cause blurred edges and lost details, reducing the viewing experience. Therefore, effective halo suppression technology is crucial for improving the display quality.

[0062] In practical applications, this design based on the difference in emission angles can be flexibly switched according to different display requirements. For example, when local highlighting is needed, such as highlighting the high - light parts in a video or special effects areas in a game, the large - angle light pattern is fully opened, and the light emitted by the first light - emitting unit 12 can cover a wider area, enabling a higher brightness in the local area and enhancing the visual impact; in areas sensitive to halos, such as the edges of displayed text, icons, or high - contrast images, the small - angle light pattern dominates, and the second light - emitting unit 13 can effectively reduce light spillage, ensuring clear edges and no halos, and improving the overall quality of the picture.

[0063] Specifically, please refer to Figure 4 and Figure 5 , Figure 4 which is the schematic diagram of the scenario provided by the embodiment of this application. Figure 5 This is the light - emitting state of the backlight module provided by the embodiment of this application in different area display modes: (1) is the light - emitting state in the high - light display mode; (2) is the light - emitting mode in the normal display mode; (3) is the light - emitting mode in the halo suppression mode. In the same picture, different area display modes can be obtained by dividing the area according to the display content.

[0064] For example Figure 4 and Figure 5 (1), if the area display mode is the high - light display mode a, then control the light - emitting intensity of the first light - emitting unit 12 and the second light - emitting unit 13 to be greater than or equal to the preset intensity. In the high - light display mode a, both the large - angle first light - emitting unit 12 and the small - angle second light - emitting unit 13 operate at 100% light - emitting intensity to ensure that the information is clearly visible under various lighting conditions.

[0065] For example Figure 4 and Figure 5 (2), if the area display mode is the normal display mode b, then control the light - emitting intensity of the first light - emitting unit 12 to be greater than the preset intensity and the light - emitting intensity of the second light - emitting unit 13 to be less than the preset intensity. In the normal display mode b, the large - angle first light - emitting unit 12 provides uniform backlight at 80% brightness, and the small - angle second light - emitting unit 13 assists in details at 30% brightness.

[0066] For example Figure 4 and Figure 5 (3), if the area display mode is the halo suppression mode c, then control the light - emitting intensity of the first light - emitting unit 12 to be less than the preset intensity and the light - emitting intensity of the second light - emitting unit 13 to be greater than or equal to the preset intensity. In the halo suppression mode c, the large - angle first light - emitting unit 12 drops to 20% brightness, and the small - angle second light - emitting unit 13 focuses on the information edge at 90% brightness to avoid reflection blurring.

[0067] In summary, through the periodic alternating arrangement of multiple rows of the first light-emitting units 12 and multiple rows of the second light-emitting units 13, and the row ratio adjusted according to the size of the display panel 20, combined with the reasonable application of light-emitting units with different light-emitting angles, the flexible adjustment of the optical characteristics of the backlight module 10 in different display scenarios and sizes is achieved, significantly improving the display effect and performance of the display device 100.

[0068] Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of the first optical component provided by an embodiment of the present application. In some embodiments, the first light-emitting unit 12 includes a first light-emitting chip and a first optical component 122, and the first optical component 122 is configured to expand the emission light angle of the first light-emitting chip to a first light-emitting angle, which is applicable to the conventional display mode b. The first light-emitting chip and the second light-emitting chip are the core light-emitting components of the first light-emitting unit 12 and the second light-emitting unit 13 respectively. Based on the semiconductor light-emitting principle, photons are generated by the recombination of electrons and holes to release energy, which is the initial source of light.

[0069] In the conventional display mode b, in scenarios such as playing ordinary video programs and browsing the web, a large area of uniform light coverage is required to ensure the overall brightness and color uniformity of the picture. By effectively expanding the emission light angle of the first light-emitting chip, the first optical component 122 can evenly irradiate the corresponding area of the display panel 20 to meet this requirement. For example, when displaying a colorful natural landscape painting, there are both large background areas such as the sky and grassland in the picture, as well as some objects with rich details. The light emitted by the first light-emitting unit 12 can evenly illuminate the entire picture, making the color transition natural and the details clearly visible.

[0070] Please refer to Figure 7 , Figure 7 which is a schematic structural diagram of the second optical component provided by an embodiment of the present application. The second light-emitting unit 13 includes a second light-emitting chip and a second optical component 132, and the second optical component 132 is configured to limit the emission light angle of the second light-emitting chip to a second light-emitting angle, which is applicable to the halo suppression mode c, reducing light scattering and spillage and avoiding light interference in adjacent areas. For example, when displaying a starry sky scene, the second optical component 132 can reduce the light interference between adjacent star points.

[0071] In the halo suppression mode c, when displaying high-contrast images, text, or specific special effect scenes, it is necessary to strictly control the propagation range of light to avoid the interference of light between adjacent regions, resulting in the halo phenomenon, which affects the clarity and contrast of the image. The second optical component 132 can effectively reduce light spillage by precisely restricting the angle of the light emitted by the second light-emitting chip, ensuring a significant brightness difference between adjacent regions and improving the layering and clarity of the image. For example, when displaying a starry sky scene, the image contains many bright star points. If the light is not properly controlled, halos are likely to occur between adjacent star points, making the star points appear blurred and affecting the visual effect. The application of the second optical component 132 can significantly reduce the light interference between adjacent star points, allowing each star point to be clearly and independently presented, creating a realistic starry sky effect.

[0072] Among them, please refer to Figure 8 , Figure 8 is Figure 6 the schematic cross-sectional view at B-B. The first optical component 122 is a reflective lens, which is a lens structure that changes the propagation direction of light through the reflective surface 1223. Its working principle is mainly based on the law of reflection of light on the surface of the medium. By reasonably designing the shape and angle of the reflective surface 1223, the regulation of light such as convergence and diffusion can be achieved. The reflective lens has a high light energy utilization rate and can reduce the absorption loss of light inside the lens.

[0073] The bottom of the first optical component 122 is provided with a first receiving cavity 1221, which is configured to accommodate the first light-emitting chip. This design can ensure that the first light-emitting chip is firmly installed inside the reflective lens, guaranteeing the stable emission of light. The top of the first optical component 122 is provided with a first groove 1222, and the inner wall of the first groove 1222 forms the reflective surface 1223. The side wall of the first optical component 122 forms a first refraction surface 1224. The first refraction surface 1224 formed by the side wall of the reflective lens and the top reflective surface 1223 work together to achieve the regulation of light.

[0074] In the optimization design of Fresnel loss, uniform diffusion of light is achieved through a specific curvature (such as the Bezier curve equation). The Bezier curve equation has flexible shape control capabilities, enabling precise design of the curvature of the reflecting surface 1223 and the refracting surface according to actual requirements, so that light can be evenly distributed in the required area after reflection and refraction. This design method effectively reduces the energy loss of light during reflection and refraction, improving the utilization rate of light energy. For example, in traditional lens design, due to the existence of Fresnel loss, some light will be reflected on the lens surface and cannot reach the display panel 20, resulting in a decrease in the brightness of the picture. However, the reflective lens designed with the Bezier curve equation can make light propagate more efficiently, reducing reflection loss, and thus obtaining a higher picture brightness under the same input power.

[0075] The reflective lens is suitable for scenarios that require high brightness and controllable halos, such as the direct sunlight scene in HDR (High Dynamic Range) videos. In HDR videos, the direct sunlight area usually has extremely high brightness, and the backlight module 10 is required to provide sufficient light intensity to accurately restore this scene. At the same time, in order to create a realistic light and shadow effect, precise control of the halo is also required to prevent the light in the direct sunlight area from spreading excessively to the surrounding area, affecting the contrast and layering of the picture. Through its unique optical design, the reflective lens can effectively control the generation of halos while ensuring high brightness. When the first light-emitting chip emits light, the light first passes through the refraction of the sidewall refracting surface, initially changing the propagation direction; then it reaches the top reflecting surface 1223, changes direction again after reflection, and finally spreads out at a uniform angle to illuminate the corresponding area on the display panel 20. This light propagation method enables the direct sunlight area to obtain sufficient light, while the light intensity in the surrounding area is relatively low, thus achieving a perfect combination of high brightness and controllable halos, presenting a shocking HDR visual effect to users.

[0076] Please refer to Figure 9 , Figure 9 For Figure 7 the cross-sectional schematic diagram at C-C. A second receiving cavity 1321 is provided at the bottom of the second optical component 132, and the second receiving cavity 1321 is configured to accommodate the second light-emitting chip to ensure the stable installation of the second light-emitting chip. A second groove 1322 is provided at the top of the second optical component 132, and the inner wall of the second groove 1322 forms a second refracting surface 1323, and the side wall of the second optical component 132 forms a third refracting surface 1324. The refractive lens restricts the light angle through the refracting surface (such as hyperboloid design) of the second groove 1322 at the top. The hyperboloid has unique geometric properties, enabling precise refraction control of light in different directions, thereby restricting the propagation range of light within a smaller angle.

[0077] For example, when displaying dark field details, such as the dark texture in a night scene, the backlight module 10 needs to be able to precisely control the light distribution and reduce stray light to enhance the dark state contrast. Stray light refers to the light that does not propagate in the expected direction but scatters into other areas, which will reduce the contrast in the dark field area and make the dark details blurred. The refractive lens can precisely converge and limit the angle of light through the hyperbolic refracting surface of the second groove 1322 at its top, so that the light is mainly concentrated in the area to be illuminated and the scattering to the surrounding area is reduced. When the second light-emitting chip emits light, the light first undergoes preliminary refraction through the second refracting surface 1323 of the second groove 1322 at the top, and then the propagation direction is further adjusted through the third refracting surface 1324 on the side wall, and finally exits at a small angle to illuminate the dark area on the display panel 20. This light control method effectively reduces the generation of stray light, enables the dark texture to be clearly presented, greatly enhances the dark state contrast, and makes the night scene more vivid and lifelike.

[0078] In summary, through the unique design of the first light-emitting unit 12 and the second light-emitting unit 13, and the ingenious application of the reflective lens and the refractive lens in the first optical component 122 and the second optical component 132, the present application realizes the precise control of light in different display areas, effectively improves the display effect of the display device 100 in various scenarios, and has significant technological innovation and practical application value.

[0079] In some embodiments, please refer to Figure 10 , Figure 10 which is the third structural schematic diagram of the display device provided by the embodiment of the present application. The display device 100 further includes a processor 30. The processor 30 is the core control center, responsible for processing various types of data and instructions and coordinating the orderly operation of each component. The processor 30 can be a system-on-chip. As a highly integrated processor 30, the system-on-chip (SoC) integrates multiple functional modules such as a central processing unit (CPU), a graphics processing unit (GPU), and a digital signal processor (DSP), and has powerful computing and data processing capabilities.

[0080] The processor 30 is electrically connected to the backlight module 10 and the display panel 20, respectively, and the processor 30 is configured to provide a differential signal (V-by-one) to the display panel 20 and provide a control instruction to the backlight module 10. A differential signal is a signal mode that uses two complementary signal lines to transmit information, and the signal amplitudes on the two signal lines are equal and the phases are opposite. The receiving end restores the original signal by comparing the voltage difference between the two signal lines. The application of differential signals brings significant performance improvement to the display device 100. In the process of the display panel 20 receiving image data, the differential signal can effectively resist the influence of external electromagnetic interference and noise during signal transmission by virtue of its strong anti-interference ability. Taking the industrial monitoring scene as an example, there are a large number of electronic devices in the monitoring room, and the electromagnetic environment is complex. Traditional single-ended signals are easily interfered in this environment, resulting in errors in the image data received by the display panel 20, flickering, blurring and other problems. The differential signal restores the original signal through the voltage difference between two complementary signal lines. Even if one of the signal lines is interfered with, the other signal line can provide opposite interference information, and the two cancel each other out, thereby ensuring the accuracy and stability of the image data received by the display panel 20, ensuring that the monitoring image is clear and distortion-free, and providing reliable protection for safe monitoring of industrial production.

[0081] The processor 30 can quickly and accurately analyze the characteristics of the displayed content, including brightness distribution, contrast, color information, etc. For example, when a complex PDF (Power Density Function) pattern containing a large number of charts, texts and pictures is displayed, that is, the image has high-contrast areas, fast-moving pictures or mixed lighting scenes, the processor 30 can identify the highlight areas and dark areas in real time, and generate corresponding control instructions based on this information. The instructions of the backlight control chip 40 are dynamically adjusted through the SPI (Serial Peripheral Interface) signal, realizing high-speed and real-time communication between the processor 30 and the backlight module 10. The efficient transmission characteristics of the SPI signal enable the processor 30 to promptly transmit the detected display content change information to the backlight control chip 40, ensuring that the backlight module 10 can respond quickly and adjust the light-emitting state of the light-emitting unit to adapt to different display requirements.

[0082] Taking the playback of dynamic games as an example, rapidly changing scenes and objects often appear in the game screen, and the distribution of highlight areas and dark areas also changes at any time. The processor 30 can quickly switch the current duty cycle of the large / small angle light pattern to optimize the real-time halo. When a bright explosion effect or a high-light object appears in the screen, the processor 30 quickly increases the current duty cycle of the light-emitting units in the corresponding area, causing the light-emitting units to emit stronger light and highlighting the details of the highlight area; at the same time, it reduces the current duty cycle of the light-emitting units in the surrounding area, reduces light spillage, and avoids the generation of halos. This fast and precise dynamic adjustment ability makes the game screen clearer and more realistic, greatly enhancing the user's gaming experience. For example, in competitive games, players can more clearly observe the detailed changes in the game scene, improving their reaction speed and game winning rate.

[0083] Among them, please continue to refer to Figure 10 , the backlight module 10 further includes a backlight control chip 40. The backlight control chip 40 is the core control component in the backlight module 10 and is used to receive the control instructions from the processor 30 and convert them into LED drive signals executable by the first light-emitting unit 12 and the second light-emitting unit 13. The backlight control chip 40 realizes the dynamic adjustment of the backlight brightness and optical characteristics by precisely controlling parameters such as the current and voltage of the light-emitting units.

[0084] The backlight control chip 40 is electrically connected to the processor 30, the first light-emitting unit 12, and the second light-emitting unit 13 respectively. The backlight control chip 40 is configured to convert the control instructions of the processor 30 into execution instructions for the first light-emitting unit 12 and the second light-emitting unit 13.

[0085] The main function of the backlight control chip 40 is to convert the control instructions of the processor 30 into execution instructions for the first light-emitting unit 12 and the second light-emitting unit 13, specifically manifested as converting the instructions of the processor 30 into LED drive signals. The LED drive signal is the core signal for controlling the light emission of the light-emitting unit, and it contains key information such as the brightness and light emission time of the light-emitting unit. Through precise control of the LED drive signal, the backlight control chip 40 can achieve independent control of the first light-emitting unit 12 and the second light-emitting unit 13, meeting the different backlight requirements of different display areas.

[0086] For example, in the halo suppression mode c, since the control requirements for light in this area are more stringent, it is necessary to reduce light spillage and avoid light interference in adjacent areas. The backlight control chip 40 can, according to the instructions of the processor 30, reduce the current duty ratio of the first light-emitting unit 12 to 30%, while increasing the current duty ratio of the second light-emitting unit 13 to 70%. This differential current control strategy not only ensures that the halo suppression mode c can obtain sufficient light to highlight the dark details and avoid the loss of dark details due to insufficient light, but also effectively limits the light intensity of the first light-emitting unit 12 and reduces the scattering of light to surrounding areas, thus achieving the dual goals of no loss of dark-state details and halo suppression. Taking the display of a night scene as an example, there are some faint lights and deep night sky areas in the picture. Through the precise adjustment of the current duty ratios of the first light-emitting unit 12 and the second light-emitting unit 13 by the backlight control chip 40, the light area can be made bright and clear, and the night sky area can be made dark and deep, greatly improving the contrast and layering of the picture and presenting a more realistic night scene effect for the user.

[0087] In summary, through the collaborative work of the processor 30 and the backlight control chip 40, the present application realizes the dynamic and precise control of the backlight module 10, effectively optimizes the display effect of the display device 100 in different display scenarios, and particularly achieves remarkable technological breakthroughs in halo suppression and dark-state detail retention.

[0088] In some embodiments, please continue to refer to Figure 10 , the display device 100 further includes a power supply 50. The power supply 50 is a core component responsible for converting the externally input electrical energy into current signals and voltage signals suitable for components such as the backlight module 10 and the display panel 20. It is usually composed of a power supply 50 management chip, a transformer, a filter circuit, a voltage regulator circuit, etc., and has multiple functions such as voltage conversion, current regulation, overvoltage protection, and overcurrent protection to ensure that each component works in a stable and safe electrical environment.

[0089] The power supply 50 is electrically connected to the backlight module 10 and the display panel 20 respectively. The power supply 50 is configured to provide a current signal, such as direct current (DC), to the display panel 20, the first light-emitting unit 12, and the second light-emitting unit 13 to meet the power requirements in different display areas and display states. A current signal refers to an electrical signal that transmits information by the magnitude and direction of the current. In the display device 100, the current signal provided by the power supply 50 to the backlight module 10, the first light-emitting unit 12, and the second light-emitting unit 13 is a key parameter for controlling their light-emitting brightness and operating state. By adjusting parameters such as the magnitude and duty cycle of the current signal, the light-emitting intensity and light-emitting time of the light-emitting unit can be precisely controlled, thereby realizing the dynamic adjustment of the brightness and contrast of the display screen. In pulse width modulation (PWM) dimming technology, the duty cycle refers to the ratio of the time when the signal is at a high level (or effective state) to the entire cycle time within one cycle, usually expressed as a percentage. In the display device 100, the duty cycle is used to control the light-emitting time of the light-emitting unit in the backlight module 10, thereby realizing the adjustment of the light-emitting brightness.

[0090] For example, in the high-brightness display mode a, the first light-emitting unit 12 and the second light-emitting unit 13 are simultaneously powered with a 100% duty cycle to achieve peak brightness.

[0091] In the display screen, the high-brightness display mode a often carries important visual information and needs to be presented with high brightness to highlight the display effect. In response to this requirement, this application designs a unique power supply strategy. When the display device 100 detects the high-brightness display mode a, the power supply 50 simultaneously provides a current signal with a 100% duty cycle to the first light-emitting unit 12 and the second light-emitting unit 13.

[0092] This power supply method enables the first light-emitting unit 12 and the second light-emitting unit 13 to work at the maximum power simultaneously, releasing all their light-emitting capabilities, thereby achieving peak brightness output. For example, when playing a high-definition video, when a bright explosion special effect or a high-light object appears in the picture, the display device 100 can quickly recognize these high-brightness display modes a and immediately adjust the power supply parameters of the power supply 50 to make the first light-emitting unit 12 and the second light-emitting unit 13 both reach the 100% duty cycle operating state. At this time, the strong lights emitted by the two light-emitting units are superimposed on each other, greatly increasing the brightness in the high-brightness display mode a, making the details clearer and the colors more vivid, presenting a shocking visual effect to the user.

[0093] Analyzed from the technical principle, the simultaneous high-duty-cycle power supply of the first light-emitting unit 12 and the second light-emitting unit 13 can make full use of the light-emitting capabilities of the two light-emitting units, and enhance the brightness in the high-brightness display mode a through the superposition of light. Moreover, due to the adoption of PWM dimming technology, a 100% duty-cycle power supply does not mean that the current is always at the maximum value, but remains at a high level within one cycle. In this way, it can not only ensure the high-brightness output of the light-emitting unit, but also reduce the heat generation of the light-emitting unit to a certain extent and extend its service life.

[0094] For another example, in the conventional display mode b, only the first light-emitting unit 12 operates at an 80% duty cycle to reduce power consumption.

[0095] Different from the high-brightness display mode a, the demand for brightness in the conventional display mode b is relatively low. In order to reduce power consumption, this application adopts a differentiated power supply strategy. In the conventional display mode b, the power supply 50 provides a current signal with an 80% duty cycle to the first light-emitting unit 12, while the second light-emitting unit 13 is in a low-power or off state.

[0096] This power supply method can effectively reduce power consumption on the premise of ensuring the display clarity in the conventional display mode b. The first light-emitting unit 12 operates at an 80% duty cycle, and its light-emitting brightness can meet the conventional display requirements while reducing unnecessary energy consumption. The off or low-power state of the second light-emitting unit 13 further reduces the power consumption of the entire backlight module 10. For example, when reading an electronic document or browsing the web, most areas of the display screen are in the conventional display mode b. By adopting this power supply strategy, the power consumption of the display device 100 can be significantly reduced, thereby extending the battery life of the device.

[0097] From the actual effect, the application of the 80% duty-cycle power supply method in the conventional display mode b has achieved a good balance. On the one hand, it ensures the brightness and contrast of the display screen, enabling users to clearly read text and view pictures; on the other hand, by reducing the duty cycle, it reduces the working time of the light-emitting unit, reducing heat generation and energy consumption. In addition, this differentiated power supply strategy can also be adjusted in real time according to the dynamic changes of the display content. When the brightness requirements of some parts in the conventional display mode b change, the power supply 50 can quickly adjust the power supply parameters to ensure the stability and consistency of the display effect.

[0098] For another example, in the halo suppression mode c, only the second light-emitting unit 13 operates at an 80% duty cycle to reduce power consumption.

[0099] Different from the high-brightness display mode a, in the halo suppression mode c, it is necessary to suppress the halo, so the light-emitting intensity of the second light-emitting unit 13 at a small angle is increased, while the first light-emitting unit 12 is in a low-power or off state.

[0100] This power supply strategy effectively solves the technical problem of halo diffusion in high-contrast images by precisely distributing the load of the light-emitting units. In halo suppression mode c, when the display device 100 detects the coexistence of a dark background and a high-brightness object (such as the bright moon in the starry sky, street lights in the night scene, or bright spots in the image), the power supply 50 can cut off the power supply to the first light-emitting unit 12 and simultaneously increase the duty cycle of the second light-emitting unit 13 to 80%. At this time, the narrow-angle beam characteristics of the second light-emitting unit 13 are fully activated, and its light intensity distribution curve forms a steep brightness peak within a viewing angle range of less than 60°, precisely covering the area where the high-brightness object is located. The weakening of the light intensity of the first light-emitting unit 12 can prevent the overflow of large-angle light.

[0101] In summary, through the intelligent power supply strategy of the power supply 50 for the first light-emitting unit 12 and the second light-emitting unit 13 in the backlight module 10, this application realizes high-brightness display in the high-brightness display mode a and low-power operation in the normal display mode b. This technical solution not only improves the display effect of the display device 100, enhances the layering and visual impact of the image, but also significantly reduces power consumption, meeting the trend of energy conservation and environmental protection.

[0102] In the display device 100 provided by the embodiment of this application, the display device 100 includes a backlight module 10 and a display panel 20. The backlight module 10 includes a substrate 11, a plurality of first light-emitting units 12, and a plurality of second light-emitting units 13. The first light-emitting unit 12 has a first optical characteristic, and the second light-emitting unit 13 has a second optical characteristic, and the first optical characteristic is different from the second optical characteristic. Through the combination of the first light-emitting unit 12 and the second light-emitting unit 13, the limitation of the traditional single backlight module 10 design is broken, enabling the display device 100 to simultaneously meet the requirements of high brightness and high contrast, and significantly improving the display effect in complex scenarios. The plurality of first light-emitting units 12 and the plurality of second light-emitting units 13 are arranged in an array on the substrate 11, and at least one first light-emitting unit 12 is adjacent to the second light-emitting unit 13. The display panel 20 is disposed on the light-emitting side of the backlight module 10. The display panel 20 includes a plurality of pixel units 21 arranged in an array, and the light-emitting area of each first light-emitting unit 12 or each second light-emitting unit 13 correspondingly covers at least two pixel units 21. This array layout optimizes the spatial efficiency of the optical system, enabling the light output of a single light-emitting unit to cover the display requirements of multiple pixel units 21. Thus, on the premise of maintaining pixel-level light control accuracy, a significant reduction in the number of light-emitting units is achieved. Due to the reduction in the light-emitting unit density, the number of channels required for the driving circuit and the complexity of the power supply 50 management module both decrease exponentially, directly resulting in a reduction in hardware costs, with the advantages of reducing energy consumption and improving the energy efficiency ratio.

[0103] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0104] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0105] The display device provided by the embodiments of the present application has been introduced in detail above. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The descriptions of the above embodiments are only used to help understand the present application. At the same time, for those skilled in the art, based on the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A display device, characterized in that, Comprising: A backlight module, the backlight module includes a substrate, a plurality of first light-emitting units, and a plurality of second light-emitting units. The first light-emitting units have a first optical property, the second light-emitting units have a second optical property, and the first optical property is different from the second optical property. The plurality of first light-emitting units and the plurality of second light-emitting units are arranged in an array on the substrate, and at least one of the first light-emitting units is adjacent to the second light-emitting unit; A display panel, the display panel is disposed on the light-emitting side of the backlight module. The display panel includes a plurality of pixel units arranged in an array, and the light-emitting area of each first light-emitting unit or each second light-emitting unit correspondingly covers at least two of the pixel units.

2. The display device according to claim 1, wherein Multiple rows of the first light-emitting units and multiple rows of the second light-emitting units are arranged in a periodic alternating pattern.

3. The display device according to claim 2, wherein When the size of the display panel is greater than or equal to a preset size, the row ratio of the first light-emitting units to the second light-emitting units is 1:1; when the size of the display panel is less than the preset size, the row ratio of the first light-emitting units to the second light-emitting units is 2:

1.

4. The display device according to any one of claims 1 to 3, characterized in that, The first optical property includes a first emission angle, the second optical property includes a second emission angle, and the first emission angle is greater than the second emission angle; wherein, the range of the first emission angle is greater than or equal to 30°, and the range of the second emission angle is less than 30°.

5. The display device according to claim 4, wherein The first light-emitting unit includes a first light-emitting chip and a first optical component, and the first optical component is configured to expand the emission angle of the light emitted by the first light-emitting chip to the first emission angle; The second light-emitting unit includes a second light-emitting chip and a second optical component, and the second optical component is configured to limit the emission angle of the light emitted by the second light-emitting chip to the second emission angle.

6. The display device according to claim 5, characterized in that The first optical component is a reflective lens. A first accommodation cavity is provided at the bottom of the first optical component, and the first accommodation cavity is configured to accommodate the first light-emitting chip. A first groove is provided at the top of the first optical component, and the inner wall of the first groove forms a reflecting surface, and the side wall of the first optical component forms a first refracting surface.

7. The display device according to claim 5, wherein The second optical component is a refractive lens. A second accommodation cavity is provided at the bottom of the second optical component, and the second accommodation cavity is configured to accommodate the second light-emitting chip. A second groove is provided at the top of the second optical component, and the inner wall of the second groove forms a second refracting surface, and the side wall of the second optical component forms a third refracting surface.

8. The display device according to any one of claims 1 to 3, characterized in that, It further includes a processor, the processor is electrically connected to the backlight module and the display panel respectively, and the processor is configured to provide a differential signal to the display panel and provide a control instruction to the backlight module.

9. The display device according to claim 8, wherein The backlight module further includes a backlight control chip, the backlight control chip is electrically connected to the processor, the first light-emitting units, and the second light-emitting units respectively, and the backlight control chip is configured to convert the control instruction of the processor into an execution instruction for the first light-emitting units and the second light-emitting units.

10. The display device according to any one of claims 1 to 3, characterized in that, It further includes a power supply, the power supply is electrically connected to the backlight module and the display panel respectively, and the power supply is configured to provide a current signal to the first light-emitting unit, the second light-emitting unit and the display panel.

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