LED device and display module

Abstract

An LED device and a display module. The LED device comprises a support (100), and a red light-emitting body (10), a green light-emitting body (20), a blue light-emitting body (30), a yellow light-emitting body (40) and a cyan light-emitting body (50), which are arranged on the support (100), wherein the support (100) is provided with at least two mutually independent bowl-shaped cup structures; the red light-emitting body (10), the green light-emitting body (20), the blue light-emitting body (30), the yellow light-emitting body (40) and the cyan light-emitting body (50) are arranged in the bowl-shaped cup structures; and a plastic barrier (110) is provided between every two adjacent bowl-shaped cup structures.

Description

LED devices and display modules

[0001] This application claims priority to Chinese Patent Application No. 202411208292.8, filed with the Chinese Patent Office on August 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of LED display technology, and for example to an LED device and a display module. Background Technology

[0003] The market demand for emerging Extended Reality (XR) virtual photography and display space design in commercial complexes is constantly growing, leading to increasingly diverse display requirements. LED displays, as a display system, play a crucial role in creating immersive scenes for XR virtual photography, shaping modern canopy decorations to enhance the three-dimensionality of space, and providing visitors with a perfect viewing experience. XR virtual photography differs from traditional scene shooting. Traditional scene shooting only requires attention to brightness, grayscale, refresh rate, and consistency, while the light-emitting diode (LED) displays used in XR virtual photography not only need to maintain the shooting effect of professional cameras but also meet the higher specifications of virtual photography, such as frame rate and color accuracy. In the design of display spaces in commercial complexes, designers increasingly rely on high-tech display methods to create a three-dimensional effect in spaces, providing visitors with a perfect viewing experience. Furthermore, LED lights are widely used as lighting sources, and as people's living standards continue to improve, the demand for more natural lighting effects from LED lights is also constantly increasing.

[0004] The relevant technology uses TOP tri-color LED devices to manufacture LED displays or LED lights. These tri-color LED devices are made of red, green, and blue light-emitting chips. The red chip has a wavelength range of 580nm–670nm, with a peak wavelength of 610nm–650nm; the green chip has a wavelength range of 570nm–620nm, with a peak wavelength of 510nm–540nm; and the blue chip has a wavelength range of 400nm–540nm, with a peak wavelength of 420nm–470nm. The wavelength range refers to the range of light waves, and the peak wavelength refers to the wavelength corresponding to the peak luminous intensity.

[0005] However, displays made with tri-color LED devices have poor color effects and atmospheric rendering effects, and the images displayed on the displays are not natural or realistic enough; LED lights made with tri-color LED devices also have problems with unnatural lighting effects, making it difficult to meet the needs of diverse scenarios. Summary of the Invention

[0006] This application provides an LED device, which includes a bracket and red, green, blue, yellow and cyan light emitters disposed on the bracket. The bracket has at least two independent bowl-shaped structures, and the red, green, blue, yellow and cyan light emitters are disposed within the bowl-shaped structures. Plastic partitions are provided between adjacent bowl-shaped structures.

[0007] In one embodiment, the support has three independent bowl-shaped structures. The red, green, and blue light emitters are disposed in the first bowl-shaped structure, the yellow light emitter is disposed separately in the second bowl-shaped structure, and the cyan light emitter is disposed separately in the third bowl-shaped structure. The red light emitter is a red light chip, the green light emitter is a green light chip, the blue light emitter is a blue light chip, the yellow light emitter includes a blue light chip emitting blue light with a peak wavelength of 450nm to 475nm and yellow phosphor, and the cyan light emitter includes a blue light chip emitting blue light with a peak wavelength of 450nm to 475nm and cyan phosphor.

[0008] In one embodiment, the peak wavelength of the yellow light emitted by the yellow light emitter is 540nm to 600nm; and the peak wavelength of the cyan light emitted by the cyan light emitter is 470nm to 550nm.

[0009] In one embodiment, the full width at half maximum (FWHM) of the yellow light emitted by the yellow light emitter is 60 nm to 120 nm; and the full WHM of the cyan light emitted by the cyan light emitter is 20 nm to 80 nm.

[0010] In one embodiment, the yellow phosphor comprises one or more of aluminates, silicates, and nitrides.

[0011] In one embodiment, the yellow phosphor includes Ga-YAG and Sr2SiO4:Eu. 2+ (BaSr)2SiO4:Eu 2+ La3Si6N 11 :Ce 3+ One or more of them.

[0012] In one embodiment, the cyan light emitter further includes cyan phosphor, which includes one or more of nitrogen oxides, silicates, and aluminates.

[0013] In one embodiment, the cyan phosphor comprises SiAlON:Eu 2+ BaSiON2:Eu 2+ Ba2SiO4:Eu 2+One or more of LuAG.

[0014] In one embodiment, the yellow light emitter further includes a red phosphor, which includes one or more of nitrides, sulfides, and fluorides.

[0015] In one embodiment, the red phosphor comprises CaAlSiN3:Eu 2+ 、(Ca 1-x Sr x AlSiN3:Eu 2+ Ca2Si5N8:Eu 2+ Sr2Si5N8:Eu 2+ Ba2Si5N8:Eu 2+ CaS:Eu 2+ MgGeF6:Mn 4+ One or more of them.

[0016] In one embodiment, the LED bracket includes pads and pins electrically connected to the pads. The red, green, and blue LED chips are disposed on the pads, which are located at the bottom of the cup structure. There are six pads, each connected to one of the six pins. Five of the pins are electrically connected to the base (B) of the chips corresponding to the red, green, blue, yellow, and cyan LEDs, respectively. One pin is electrically connected to the base (A) of the chips corresponding to the red, green, blue, yellow, and cyan LEDs, respectively.

[0017] In one embodiment, the front side of the pads is exposed within the cup structure to form functional parts. The first cup structure includes five functional parts, and the second and third cup structures each include two functional parts. The two functional parts in the first cup structure are electrically connected to one functional part in the second and third cup structures, respectively, and the remaining functional parts within the cup structure are mutually insulated.

[0018] This application provides a display module including at least two LED devices and a substrate, wherein the LED devices are disposed on the substrate. Attached Figure Description

[0019] Figure 1 is a structural diagram of the LED device in Example 1;

[0020] Figure 2 is a diagram of the pad structure of the LED device in Example 1;

[0021] Figure 3 is a spectral analysis diagram of the blue light chip in Example 1;

[0022] Figure 4 shows the spectral analysis of the LED device in Example 1;

[0023] Figure 5 shows the CIE 1931 chromaticity diagrams corresponding to Example 1 and Comparative Example 1.

[0024] Figure description: Red light emitter 10, green light emitter 20, blue light emitter 30, yellow light emitter 40, cyan light emitter 50, bracket 100, first bowl-cup structure 101, second bowl-cup structure 102, third bowl-cup structure 103, plastic partition 110, solder pad 200, common A-pole solder pad 201, first B-pole solder pad 202, second B-pole solder pad 203, third B-pole solder pad 204, fourth B-pole solder pad 205, fifth B-pole solder pad 206, functional parts 201a, 201b, 201c, 201d, 202a, 203a, 204a, 205a, 206a, pin 220. Detailed Implementation

[0025] In response to the shortcomings of existing LED displays composed of three-color LED devices, such as unnatural and unrealistic image display and unnatural LED lighting effects, this application analyzes these shortcomings: The wavelength range of natural light spectrum is continuous, with visible light ranging from 380nm to 780nm, each wavelength corresponding to a different color. However, existing three-color LED devices only have red, green, and blue as primary colors. While they can synthesize white light, the wavelength range of the synthesized white light spectrum is not continuous, resulting in unnatural images and lighting effects. Furthermore, because three-color LED devices lack light corresponding to certain wavelength ranges, they cannot synthesize all colors visible to the human eye, leading to a narrow color gamut and unrealistic display effects. Therefore, this application redesigns the LED device, incorporating five primary colors—red, green, blue, cyan, and yellow—to create an LED device with five primary colors. The following description, in conjunction with accompanying drawings and embodiments, provides further explanation.

[0026] Example 1

[0027] Referring to Figure 1, the LED device of this application includes a bracket 100 and red light emitters 10, green light emitters 20, blue light emitters 30, yellow light emitters 40, and cyan light emitters 50 disposed on the bracket 100. The red light emitter 10 may be a red light chip, emitting red light in the range of 580nm to 670nm, with a peak wavelength of 620nm to 640nm. The wavelength range refers to the range of light waves, and the peak wavelength refers to the wavelength at which the luminous intensity of the light reaches its peak.

[0028] The green light emitter 20 can be a green light chip, which emits green light in the range of 570nm to 620nm and has a peak wavelength of 515nm to 535nm.

[0029] The blue light emitter 30 can be a blue light chip, which emits blue light in the range of 420nm to 540nm, with a peak wavelength of 450nm to 475nm.

[0030] The yellow light emitter 40 includes a blue light chip and a yellow phosphor. The blue light emitted by the blue light chip excites the yellow phosphor to form yellow light, which has a wavelength range of 490nm to 780nm, a peak wavelength of 540nm to 600nm, and a half-maximum width at half maximum (HWHM) of 60nm to 120nm. HWHM is defined as the peak width at half the height of the spectral peak.

[0031] The cyan light emitter 50 includes a blue light chip and a cyan phosphor. The blue light emitted by the blue light chip excites the cyan phosphor to form cyan light. The wavelength range of the cyan light is 470nm to 600nm, the peak wavelength is 470nm to 550nm, and the half-maximum width is 20nm to 80nm.

[0032] The red light emitter 10, green light emitter 20, blue light emitter 30, yellow light emitter 40, and cyan light emitter 50 of this application combine to form a spectrally continuous LED light source. This provides a spectrum that more closely resembles the continuous spectrum of natural light, enabling the synthesis of more colors of light perceptible to the human eye. This provides users with excellent lighting effects, allowing for an indoor experience similar to that of outdoor lighting. Furthermore, the yellow light emitter 40 and cyan light emitter 50 have relatively wide full width at half maximum (FWHM), resulting in a more uniform spectral distribution of the LED device. This distribution is smoother than that of natural light, lacking obvious peak wavelengths and exhibiting smaller peaks and valleys. Therefore, it improves the color rendering index and effectively simulates the luminous effect of natural light.

[0033] Furthermore, the yellow emitter 40 and cyan emitter 50 of this application have relatively wide full width at half maximum (FWHM), thus requiring only a smaller combination of phosphor colors to achieve continuous spectrum coverage and a high color rendering index. Compared to using multiple combinations of phosphors with narrower FWHMs to achieve the same high color rendering index, this application uses fewer types of phosphors, and correspondingly, fewer emitters need to be controlled and adjusted. In practical applications, this allows for more convenient adjustment of the LED device's luminous effect according to specific needs.

[0034] It is understandable that many factors affect the half-width of LED phosphors, including the type and concentration of fluorescent substances, grain size, and substrate material. Changes in these factors will affect the half-width, making the actual measured half-width a range rather than a single value.

[0035] In traditional applications where blue LED chips excite phosphors for light emission, shorter wavelengths of light have higher photon energy. These higher-energy photons make it easier to excite the phosphor and produce a strong luminescence. Therefore, blue LED chips that emit shorter wavelengths of light are typically chosen as excitation chips, with wavelengths ranging from 400nm to 540nm and peak wavelengths from 420nm to 470nm. However, a significant portion of the light emitted by these blue LED chips is short-wavelength blue light, falling within the harmful blue light range of 400nm to 450nm. Because this harmful blue light has high energy, it can directly penetrate the cornea and lens to reach the retina, causing significant damage, including but not limited to eye strain, macular degeneration, blurred vision, retinal damage, and night blindness. Harmful blue light from LED devices also poses a significant risk to the retina when it enters the human eye. The blue light chip of this application emits blue light with a peak wavelength outside the harmful blue light wavelength range of 400nm to 450nm, reducing the content of harmful blue light to 5% and fundamentally avoiding damage to the human eye caused by harmful blue light with wavelengths of 400nm to 450nm.

[0036] The inventors discovered that the blue light emitted by the blue chip in this application has a long wavelength and low energy, resulting in low conversion efficiency for exciting the phosphor to emit light, and also the presence of a small amount of harmful short-wavelength blue light. Therefore, the inventors researched phosphor materials, using phosphor materials with different compositions than conventional ones. The yellow phosphor includes aluminates and silicates or nitrides, such as Ga-YAG, Sr2SiO4:Eu... 2+ (BaSr)2SiO4:Eu 2+ or La3Si6N 11 :Ce 3+ The cyan phosphor comprises nitrogen oxides and silicates or aluminates, such as SiAlON:Eu. 2+ BaSiON2:Eu 2+ Ba2SiO4:Eu 2+ Or LuAG. The yellow and cyan phosphors of this application can improve conversion efficiency while absorbing harmful blue light, reducing the content of harmful blue light to below 5%.

[0037] To adjust the color temperature and color rendering index and improve luminous efficacy, red phosphor can be added to the yellow phosphor. The red phosphor includes nitrides and sulfides or fluorides, such as CaAlSiN3:Eu. 2+ 、(Ca 1-x Sr x AlSiN3:Eu 2+ Ca2Si5N8:Eu 2+ Sr2Si5N8:Eu2+ 、Ba2Si5N8:Eu 2+ 、CaS:Eu 2+ or MgGeF6:Mn 4+ 。The yellow phosphor can be used in combination with the red phosphor to further improve the conversion efficiency of the blue-light-excited phosphor emission and further absorb harmful blue light.

[0038] Please refer to FIG. 3, which is the spectral analysis diagram of the blue-light chip of this embodiment. The blue-light chip used in this application has a wavelength band range of 420 nm to 540 nm. For example, the peak wavelength of the blue light emitted by the blue-light chip of this application is 450 nm to 475 nm, which is outside the wavelength range of harmful blue light, greatly reducing the short-wavelength harmful blue light, and the content of harmful blue light is reduced to less than 5%. Although the blue light of this application contains less short-wavelength blue light and the emitted blue light energy is lower, the materials of the yellow phosphor, cyan phosphor and red phosphor of this application can cooperate well with the blue-light chip used in this application and have a high conversion efficiency. Please refer to FIG. 4, which is the spectral analysis diagram of the LED device of this embodiment. It can be seen from the figure that the heights of the peak emission intensities of yellow light and cyan light are basically the same as that of blue light. It can be seen that compared with traditional applications, the luminescence effect of the phosphor of this application will not be reduced due to the reduction of the blue light energy emitted by the blue-light chip.

[0039] In this embodiment, the bracket 100 is provided with 3 mutually independent bowl structures, and the red light-emitting body 10, green light-emitting body 20, blue light-emitting body 30, yellow light-emitting body 40 and cyan light-emitting body 50 are arranged in the bowl structures. The red light-emitting body 10, green light-emitting body 20, and blue light-emitting body 30 are arranged in the first bowl structure 101, the yellow light-emitting body 40 is separately arranged in the second bowl structure 102, and the cyan light-emitting body 50 is separately arranged in the third bowl structure 103. A plastic partition 110 is provided between adjacent bowl structures to prevent the light-emitting bodies in the bowl structures from having cross-talk phenomenon. The 3 bowl structures are arranged in a "pin" shape, which can make full use of the space inside the bracket, make the positions of the lamp beads more compact, and make the mixing of light between adjacent lamp beads more uniform. In other embodiments, the positions of the chips can be adjusted according to needs, which is not limited to this embodiment.

[0040] When using the LED device of this application, the light emitted by the light-emitting body can be mixed to form white light or light of other colors.

[0041] In this embodiment, each red, green, blue, yellow, and cyan light-emitting element in the LED device of this application is individually electrically connected to the control component. Referring to Figures 1 and 2, the LED device of this application also includes a pad 200, which has corresponding conductive pins 220. The chip of this application is disposed on the pad and electrically connected to the pad via conductive solder or a wire. The pads are located at the bottom of the cup structure, and there are six pads in total, each connected to one of the six pins. Five pins are electrically connected to the A-pole of the chip corresponding to each of the five light-emitting elements, and one pin is electrically connected to the B-pole of the chip corresponding to each of the five light-emitting elements.

[0042] The front sides of the pads are exposed within the cup-shaped structure to form functional sections, which are used to place LED chips or for wire bonding. The first cup-shaped structure 101 includes five functional sections, and the second cup-shaped structure 102 and the third cup-shaped structure 103 each include two functional sections. The two functional sections in the first cup-shaped structure 101 are electrically connected to one functional section of the second cup-shaped structure 102 and the third cup-shaped structure 103, respectively. The remaining functional sections within the cup-shaped structure are mutually insulated.

[0043] The six pads are a common A-pole pad 201, a first B-pole pad 202, a second B-pole pad 203, a third B-pole pad 204, a fourth B-pole pad 205, and a fifth B-pole pad 206. The common A-pole pad 201 connects to the functional parts 201a and 201b that form electrical connections within the first cup structure 101, and forms functional parts 201c and 201d that form electrical connections within the second cup structure 102 and the third cup structure 103, respectively. The first B-pole pad 202, the second B-pole pad 203, and the third B-pole pad 204 connect to the first cup structure 101, and form functional parts 202a, 203a, and 204a that form electrical connections within the first cup structure 101, respectively. The fourth B-pole pad 205 connects to the second cup structure 102 and forms a functional part 205a that forms an electrical connection within the second cup structure 102. The fifth B-pole pad 206 connects to the third cup structure 103 and forms a functional part 206a that forms an electrical connection within the third cup structure 103.

[0044] The common A-pole pad 201 includes at least one through hole to increase the bonding strength between the pad and the LED device bracket.

[0045] The blue light chip of the first bowl-shaped structure 101 is disposed in the functional section 203a and connected to functional sections 201a, 202a, and 203a via leads. The green light chip of the first bowl-shaped structure 101 is disposed in the functional section 203a and connected to functional sections 201a and 203a via leads. The red light chip is vertically disposed in the functional section 201b and connected to functional section 204a only via leads. The blue light chip of the second bowl-shaped structure 102 is disposed in the functional section 205a and connected to functional sections 201c and 205a via leads. The blue light chip of the third bowl-shaped structure 103 is disposed in the functional section 206a and connected to functional sections 201d and 206a via leads.

[0046] The current flowing through each light-emitting element can be individually controlled by controlling the pin corresponding to each light-emitting element, thereby controlling and adjusting the light-emitting effect of the LED device. Since the red light-emitting element 10, green light-emitting element 20, and blue light-emitting element 30 in this embodiment are directly emitted by the chip, the red, green, and blue chips have high color purity. Therefore, when a high-saturation display effect is required, only the red light-emitting element 10, green light-emitting element 20, and blue light-emitting element 30 can be lit for rendering; when simulating indoor and outdoor lighting scenes to fully reproduce the colors of the illuminated objects and obtain a more realistic image, all five colors—red light-emitting element 10, green light-emitting element 20, blue light-emitting element 30, yellow light-emitting element 40, and cyan light-emitting element 50—can be lit simultaneously for rendering. By controlling the light-emitting state of different light-emitting elements, the LED device in this embodiment can adapt to the lighting or display rendering requirements of different scenes.

[0047] In this embodiment, both the pads and pins are made of metal. The chip dissipates heat through the pads and pins, which improves the heat dissipation efficiency of the bracket 100, prevents the chip from being damaged due to prolonged heat, and thus extends the lifespan of the LED device. To fully utilize the space of the cup structure and improve heat dissipation efficiency, in this embodiment, the green light emitter 20 and the blue light emitter 30 are disposed on the same pad, while the red light emitter 10, the yellow light emitter 40, and the cyan light emitter 50 are disposed on three separate pads. In other embodiments, the arrangement of the pads and pins can be adjusted as needed and is not limited to this embodiment.

[0048] Alternatively, at least two LED devices as described in this embodiment can be disposed on the substrate to form a display module.

[0049] Comparative Example 1

[0050] Comparative Example 1 is basically the same as Example 1, except that the LED device in the comparative example includes a bracket 100 and red light emitter 10, green light emitter 20 and blue light emitter 30 disposed on the bracket 100, and does not include yellow light emitter 40 and cyan light emitter 50.

[0051] To verify the technical effect of the LED device of this application, please refer to Figure 5. The present applicant has drawn the International Commission on Illumination (CIE) 1931 chromaticity diagrams corresponding to Example 1 and Comparative Example 1. The CIE 1931 chromaticity diagrams are used to visually represent the color gamut range and boundaries of this application and related technologies. In the figure, the black triangular area represents the color gamut of the LED device of Comparative Example 1, and the quadrilateral area represents the color gamut of the LED device of Example 1. The difference between the quadrilateral area and the black triangular area represents the increase in color gamut of Example 1 compared to Comparative Example 1. Calculations show that the color gamut of the LED device of this application is improved by 37%.

[0052] Compared to related technologies, the LED device of this application adds the ability to emit yellow and cyan light, greatly expanding the color gamut. Furthermore, the wavelength range of the multiple primary colors superimposed in the LED device of this application can cover visible light from 420nm to 780nm, enabling the synthesis of white light with a continuous spectrum, making the emitted light more realistic and natural. This white light source has excellent color rendering, providing more natural and realistic color reproduction when illuminating objects. The wide full width at half maximum (FWHM) of the yellow and cyan emitters results in a more uniform spectral distribution of the LED device, closely resembling the smooth spectral distribution of natural light, without obvious peak wavelengths and exhibiting smaller peaks and valleys. This improves the color rendering index and effectively simulates the luminous effect of natural light. In addition, the blue light chip of this application emits blue light with a peak wavelength of 450nm to 475nm, outside the range of harmful blue light wavelengths, greatly reducing short-wavelength harmful blue light and preventing damage to the human eye. Meanwhile, since the light from the yellow and cyan light emitters in this application is generated by blue light exciting special phosphors, the LED devices in this application have high conversion efficiency and can also reasonably adjust the proportion of phosphors according to different scenarios to adjust the color temperature of the emitted light and adapt to the rendering needs of lighting or displays in different scenarios.

Claims

1. An LED device, comprising a bracket and red, green, blue, yellow and cyan light-emitting elements disposed on the bracket; the bracket having at least two independent bowl-shaped structures, wherein the red, green, blue, yellow and cyan light-emitting elements are disposed within the bowl-shaped structures, and plastic partitions are provided between adjacent bowl-shaped structures.

2. The LED device according to claim 1, wherein: The support has three independent bowl-shaped structures. The red, green, and blue light emitters are located in the first bowl-shaped structure, the yellow light emitter is located separately in the second bowl-shaped structure, and the cyan light emitter is located separately in the third bowl-shaped structure. The red light emitter is a red light chip, the green light emitter is a green light chip, the blue light emitter is a blue light chip, the yellow light emitter includes a blue light chip that emits blue light with a peak wavelength of 450nm to 475nm and yellow phosphor, and the cyan light emitter includes a blue light chip that emits blue light with a peak wavelength of 450nm to 475nm and cyan phosphor.

3. The LED device according to claim 1, wherein: The peak wavelength of the yellow light emitted by the yellow light source is 540nm to 600nm; the peak wavelength of the cyan light emitted by the cyan light source is 470nm to 550nm.

4. The LED device according to claim 3, wherein: The yellow light emitted by the yellow light emitter has a full width at half maximum (FWHM) of 60 nm to 120 nm; the cyan light emitted by the cyan light emitter has a FWHM of 20 nm to 80 nm.

5. The LED device according to claim 2, wherein: The yellow phosphor includes one or more of aluminates, silicates, and nitrides.

6. The LED device according to claim 5, wherein: The yellow phosphor includes Ga-YAG and Sr2SiO4:Eu. 2+ (BaSr)2SiO4:Eu 2+ La3Si6N 11 :Ce 3+ One or more of them.

7. The LED device according to claim 2, wherein: The cyan phosphor includes one or more of nitrogen oxides, silicates, and aluminates.

8. The LED device according to claim 7, wherein: The cyan phosphor includes SiAlON:Eu 2+ BaSiON2:Eu 2+ Ba2SiO4:Eu 2+ One or more of LuAG.

9. The LED device according to claim 4, wherein: The yellow luminescent body also includes red phosphor, which includes one or more of nitrides, sulfides, and fluorides.

10. The LED device according to claim 9, wherein: The red phosphor includes CaAlSiN3:Eu 2+ 、(Ca 1-x Sr x AlSiN3:Eu 2+ Ca2Si5N8:Eu 2+ Sr2Si5N8:Eu 2+ Ba2Si5N8:Eu 2+ CaS:Eu 2+ MgGeF6:Mn 4+ One or more of them.

11. The LED device according to claim 2, wherein: The bracket includes pads and pins that are electrically connected to the pads. The red, green, and blue light chips are respectively disposed on the pads. The pads are disposed at the bottom of the cup structure. There are six pads, each connected to one of the six pins. Five of the pins are electrically connected to the base (B) of the chips corresponding to the red, green, blue, yellow, and cyan light emitters, respectively. One pin is electrically connected to the base (A) of the chips corresponding to the red, green, blue, yellow, and cyan light emitters, respectively.

12. The LED device according to claim 11, wherein: The front side of each pad is exposed within the cup structure to form a functional part. The first cup structure includes five functional parts, and the second and third cup structures each include two functional parts. The two functional parts in the first cup structure are electrically connected to one functional part in the second and third cup structures, respectively. The remaining functional parts within the cup structure are mutually insulated.

13. A display module comprising at least two LED devices as described in any one of claims 1 to 12 and a substrate, wherein the LED devices are disposed on the substrate.

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