WO2023169014A1 - 背光模组和显示装置 - Google Patents
背光模组和显示装置 Download PDFInfo
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- WO2023169014A1 WO2023169014A1 PCT/CN2022/136562 CN2022136562W WO2023169014A1 WO 2023169014 A1 WO2023169014 A1 WO 2023169014A1 CN 2022136562 W CN2022136562 W CN 2022136562W WO 2023169014 A1 WO2023169014 A1 WO 2023169014A1
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- lamp
- edge
- panel
- backlight module
- edge portion
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
Definitions
- the present application relates to the field of display technology, and in particular, to a backlight module and a display device.
- Mini-LED is an LED chip with a chip size of about 100 ⁇ m ⁇ 100 ⁇ m. It has the advantages of high color saturation, local dimming, high brightness, and energy saving, and is widely used in backlight displays.
- Mini-LED light panels There are a large number of LEDs on Mini-LED light panels (usually thousands or even tens of thousands). At present, most Mini-LED light panels are small-sized light panels. When making large-sized light panels, the small light panels need to be spliced together, so that There is usually a gap between the light panels. When the light emitted by the Mini-LED on the light board hits the gap, it cannot be reflected back, resulting in image quality problems such as dark lines and poor optical effects.
- the purpose of this application is to provide a backlight module and a display device that increase the brightness of the gap between the lamp panels in the backlight module and improve the optical effect.
- the backlight module includes a backplane, a first light source component and a second light source component.
- the first light source component includes a first lamp panel and a plurality of first lamp beads.
- a first lamp panel is disposed on the back panel, and a plurality of first lamp beads are disposed on the first lamp panel;
- the second light source assembly includes a second lamp panel and a plurality of second lamp beads.
- the second lamp panel and the first lamp panel are arranged on the back panel in parallel, and a plurality of second lamp beads are arranged on the second lamp panel; the edges of the first lamp panel and the The edges of the second lamp panel are adjacent and form a groove; the backlight module also includes at least one third lamp bead and a reflective layer, the third lamp bead and the reflective layer are arranged in the groove, and the A reflective layer is provided on the bottom and/or side wall of the groove portion to reflect the light irradiated into the gap between the first lamp panel and the second lamp panel.
- the backlight module includes a backplane, a first light source component and a second light source component.
- the first light source component includes a first lamp panel and a plurality of first lamp beads.
- the first lamp panel is arranged on the back panel, and a plurality of first lamp beads are arranged on the first lamp panel;
- the second light source assembly includes a second lamp panel and a plurality of second lamp beads, The second lamp panel and the first lamp panel are arranged on the back panel in parallel, and a plurality of second lamp beads are arranged on the second lamp panel;
- the first lamp panel includes a connected third lamp bead.
- the second lamp panel includes a connected second main body portion and a second edge portion. The bottoms of the second main body part and the second edge part are flush, the top of the second main body part is higher than the top of the second edge part, and the second edge part and the second main body part are close to each other.
- the backlight module also includes a plurality of third lamp beads and a reflective layer, and the third lamp beads and the reflective layer are arranged on In the groove part, the reflective layer is provided at the bottom and side walls of the groove part and does not overlap with the third lamp bead, and will illuminate between the first lamp panel and the second lamp panel. The light in the gap is reflected.
- the present application discloses a display device, which includes a backlight module and a display panel corresponding to the backlight module.
- the backlight module provides a backlight source for the display panel.
- the backlight module includes a backplane, a third A light source assembly and a second light source assembly.
- the first light source assembly includes a first lamp panel and a plurality of first lamp beads. The first lamp panel is disposed on the back panel.
- the plurality of first lamp beads are Disposed on the first lamp panel;
- the second light source assembly includes a second lamp panel and a plurality of second lamp beads, the second lamp panel and the first lamp panel are arranged on the back panel in parallel , a plurality of second lamp beads are arranged on the second lamp panel; the edge of the first lamp panel and the edge of the second lamp panel are adjacent and form a groove;
- the backlight module also It includes at least a third lamp bead and a reflective layer, the third lamp bead and the reflective layer are arranged in the groove part, the reflective layer is arranged at the bottom and/or side wall of the groove part, and will illuminate the The light in the gap between the first lamp panel and the second lamp panel is reflected.
- This application forms a lower-height groove portion on the edge of the adjacent lamp panel, and provides a third lamp bead and a reflective layer in the groove portion. It not only improves the brightness of the edge of the lamp panel through the third lamp bead located on the edge of the lamp panel. , and also uses the reflective layer to reflect the light emitted by the third lamp bead into the gap between the first lamp panel and the second lamp panel, and reflects the light irradiated into the gap, so that the gap between the lamp panels emits light, making the backlight
- the brightness in the gap between the light panels in the module is increased, thus solving the problem of dark lines in the gaps between the light panels and improving the optical effect.
- Figure 1 is a schematic diagram of a display device provided by the present application.
- Figure 2 is a schematic cross-sectional view of a backlight module provided by the first embodiment of the present application
- Figure 3 is a schematic plan view of a backlight module provided by the first embodiment of the present application.
- Figure 4 is a schematic cross-sectional view of a backlight module provided by the second embodiment of the present application.
- Figure 5 is a schematic cross-sectional view of the first backlight module provided by the third embodiment of the present application.
- Figure 6 is a schematic cross-sectional view of the second backlight module provided by the third embodiment of the present application.
- FIG. 7 is a schematic cross-sectional view of a backlight module provided by the fourth embodiment of the present application.
- this application discloses a display device 100.
- the display device 100 includes a display panel 300 and a backlight module 200.
- the display panel 300 is located on the light emitting side of the backlight module 200.
- the backlight The module 200 provides a backlight source for the display panel 300 .
- the backlight module 200 includes a backplane 210, a first light source assembly 220 and a second light source assembly 230.
- the first light source assembly 220 includes a first lamp panel 221 and a plurality of The first lamp bead 222, the first lamp panel 221 is disposed on the back plate 210, and a plurality of the first lamp beads 222 are disposed on the first lamp panel 221;
- the second light source assembly 230 includes The second lamp panel 231 and the plurality of second lamp beads 232 are arranged on the back panel 210 in parallel with the first lamp panel 221.
- the plurality of second lamp beads 232 are arranged on the back panel 210.
- the edge of the first lamp panel 221 and the edge of the second lamp panel 231 are adjacent and form a groove portion 240.
- the bottom of the first lamp panel 221 and the concave portion are The bottom of the groove portion 240 is flush with the bottom of the second lamp panel 231, and the top of the groove portion 240 is lower than the top of the first lamp panel 221 and also lower than the top of the second lamp panel 231;
- the backlight module 200 further includes at least one third lamp bead 250 and a reflective layer 260.
- the third lamp bead 250 and the reflective layer 260 are disposed in the groove part 240.
- the reflective layer 260 is disposed in the concave part 240.
- the bottom and/or side walls of the groove portion 240 reflect the light irradiated into the gap between the first lamp panel 221 and the second lamp panel 231 .
- this application forms a lower-height groove portion 240 on the edge of adjacent light panels, and sets it in the groove portion 240
- the third lamp bead 250 and the reflective layer 260 not only increase the brightness of the edge of the lamp panel through the third lamp bead 250 located on the edge of the lamp panel, but also make the brightness at the edge of the lamp panel brighter and can cover the gaps between the lamp panels to a certain extent.
- the reflective layer 260 is also used to reflect the light emitted by the third lamp bead 250 into the gap between the first lamp panel 221 and the second lamp panel 231, and to reflect the light irradiated into the gap, so that the lamp
- the gap between the panels emits light, so that the brightness of the gap between the lamp panels in the backlight module 200 increases
- the topography of the groove portion 240 combines the third lamp bead 250 and the reflective layer 260, so that the groove portion 240 position has both
- the functions of self-illumination, concentrated light and reflected light can better solve the problem of dark lines in the gaps between light panels and improve light utilization and optical effects.
- the backlight module 200 can be a general direct backlight module 200, a mini-LED backlight module 200, or a Micro LED backlight module 200.
- this application provides the following specific embodiments:
- the first light panel 221 includes a connected first main body part 223 and a first edge part 224.
- the first The bottoms of the main body part 223 and the first edge part 224 are flush, and the top of the first main body part 223 is higher than the top of the first edge part 224;
- the second light panel 231 has a square structure, and the The side of the first body part 223 close to the first edge part 224 , the first edge part 224 and the side of the second lamp panel 231 close to the first edge part 224 form the groove.
- the third lamp bead 250 is provided on the first edge part 224, and the reflective layer 260 is at least partially provided on a side of the first body part 223 close to the first edge part 224.
- the edge shapes of the first lamp panel 221 and the second lamp panel 231 are different.
- the first edge portion 224 serves as the bottom of the groove portion 240
- the side surfaces of the first body portion 223 and the second body portion 233 The side surfaces serve as the side walls of the groove portion 240 .
- the contact area of the first lamp panel 221 and the second lamp panel 231 is smaller, the extrusion area is smaller, and the problem of cracking is less likely to occur.
- the cross section of the first lamp panel 221 is convex.
- the reflective layer 260 is not only provided on the side of the first body part 223 close to the first edge part 224, but is also provided on the first edge part 224, and Without overlapping with the third lamp bead 250, the light irradiated by the third lamp bead 250 onto the first edge portion 224 is also reflected, thereby improving the utilization rate of light.
- the reflective layer 260 directly deposit the reflective material coating or paste the reflective sheet on the entire first lamp panel 221, and avoid overlapping the first lamp bead 222 and the third lamp bead 250 and falling on the first main body part 223.
- the reflective structure forms the reflective film 270, and the reflective film 270 can improve the brightness of the corresponding area of the first main body part 223; the reflective structure falling on the first edge part 224 forms the reflective layer 260, and the reflective layer 260 can improve the corresponding area of the first edge part 224. area brightness, and improve the problem of dark lines in the gaps between light panels.
- the third lamp bead 250 is provided with a plurality of the third lamp beads 250 in the groove portion 240, along the gap between the first lamp panel 221 and the second lamp panel 231 In the length direction, a plurality of the third lamp beads 250 are arranged at intervals, corresponding to the arrangement of the first lamp beads 221 and the second lamp beads 231 .
- the spacing between two adjacent third lamp beads 250 is different from the spacing between two adjacent first lamp beads 250.
- the distance between the lamp beads 222 is equal to the distance between the two adjacent second lamp beads 232; it is also possible to further make the third lamp bead 250 and the adjacent first lamp bead
- the distance between 222 is equal to the distance between the third lamp bead 250 and the adjacent second lamp bead 232 to further improve the light uniformity of the backlight module 200 .
- the difference from the first embodiment is that the shapes of the first light panel 221 and the second light panel 231 in this embodiment
- the first light panel 221 includes a connected first main body part 223 and a first edge part 224.
- the bottoms of the first main body part 223 and the first edge part 224 are flush.
- the top of the first edge portion 223 is higher than the top of the first edge portion 224;
- the second light panel 231 includes a connected second main body portion 233 and a second edge portion 234.
- the second main body portion 233 and the second edge portion 234 are connected to each other.
- the bottom of the edge portion 234 is flush, and the top of the second body portion 233 is higher than the top of the second edge portion 234; the side of the first body portion 223 close to the first edge portion 224, The side of the first edge portion 224, the second edge portion 234 and the second body portion 233 close to the second edge portion 234 forms the groove portion 240; the third lamp bead 250 is provided On the first edge portion 224 and/or the second edge portion 234 , the reflective layer 260 is at least partially disposed on a side of the first body portion 223 close to the first edge portion 224 , and The side of the second main body portion 233 close to the second edge portion 234 .
- the cross-sectional shapes of the first lamp panel 221 and the second lamp panel 231 are both convex.
- the shapes of the two lamp panels in this embodiment are the same.
- the first main body part 223, the first edge part 224, the second main body part 233 and the second edge part 234 are all It is a square structure.
- the bottom of the groove portion 240 is composed of a first edge portion 224 and a second edge portion 234.
- the bottom area of the groove portion 240 is larger and can accommodate more third lamp beads 250.
- the area of the reflective layer 260 is also larger. Larger, resulting in better reflection effect, which is conducive to further improving the brightness at the lamp panel gap; moreover, equally spaced third lamp beads 250 and reflective layers 260 are provided on both sides of the lamp panel gap, so that irradiation and reflection to the lamp The light brightness at the panel gap is the same, so that the light emitted from the lamp panel gap and the overall groove portion 240 has better uniformity.
- the reflective film 270 located on the first main body part 223 and the second main body part 233, and the reflective layer 260 located on the first edge part 224 and the second edge part 234 can be referred to as in Embodiment 1.
- the difference from the second embodiment is that in the second embodiment, the first main body part 223, the second main body part 233,
- the cross-sectional shapes of the first edge portion 224 and the second edge portion 234 are both square, and the cross-sectional shape of the first groove portion 240 is also square; and in this embodiment, the first main body portion 223 is close to the One side of the first edge portion 224 and the top of the first edge portion 224 form a continuous arc shape, and the portion of the second edge portion 234 and the second body portion 233 that is close to the second edge portion 234 One side forms a continuous arc.
- the reflective layer 260 is provided on the side of the first main body part 223 close to the first edge part 224, and the reflective layer 260 is provided on the side of the second main body part 233 close to the second edge part 234.
- the reflective layer 260 and the reflective layer 260 provided on the first edge part 224 and the second edge part 234 and not overlapping the third lamp bead 250 are all arc-shaped, and the arcs are all facing away from the seams.
- the gaps are protruding, so that all the reflective layers 260 in the groove part 240 form a concave mirror structure, and the principle of concave mirror astigmatism is used to make the groove part 240 as a whole emit uniform light.
- the first main body part 223 includes a plurality of first lamp grooves 225 corresponding to the shape of the groove part 240 , and the first lamp beads 222 and the first lamp grooves are 225 are installed correspondingly, and the first lamp trough 225 is also provided with a reflective film 270 that does not overlap with the first lamp bead 222;
- the second main body part 233 includes a plurality of shapes similar to the groove part 240.
- the second lamp bead 232 is installed correspondingly to the second lamp trough 235, and the second lamp trough 235 is also provided with a reflector that does not overlap with the second lamp bead 232.
- Membrane 270 is a plurality of first lamp grooves 225 corresponding to the shape of the groove part 240 , and the first lamp beads 222 and the first lamp grooves are 225 are installed correspondingly, and the first lamp trough 225 is also provided with a reflective film 270 that does not overlap with the first lamp bead 222;
- the surface of the entire lamp panel will form an array arrangement and the same groove structure.
- the corresponding lamp beads emit uniform light, so that the backlight module 200 The overall light output is even.
- the lamp trough structure in this embodiment can also be used for the corresponding first lamp panel 221 below the first lamp bead 222 and the corresponding second lamp panel 231 below the second lamp bead 232.
- the overall light uniformity of the backlight module 200 can be improved.
- the groove part 240, the first light groove 225 and the second light groove 235 are all arc-shaped grooves, and the width and depth of the groove part 240 are respectively the same as The first lamp trough 225 has the same width and depth, and is also the same as the second lamp trough 235 .
- the groove portion 240, the first lamp groove 225 and the second lamp groove 235 are all square grooves, The width and depth of the groove portion 240 are respectively the same as the width and depth of the first lamp groove 225 and the width and depth of the second lamp groove 235 respectively. Adopting such a design facilitates the processing of the first lamp panel 221 and the second lamp panel 231, and is also conducive to improving the light uniformity of the backlight module 200.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- the difference from the first embodiment is that in addition to the first light panel 221 and the first edge portion 224, the second The lamp panel 231 also has a second edge portion 234, and the first edge portion 224 and the second edge portion 234 are staggered.
- the first light panel 221 includes a connected first main body part 223 and a first edge part 224.
- the bottoms of the first main body part 223 and the first edge part 224 are flush.
- the first edge The thickness of the first main body part 224 is less than half of the thickness of the first main body part 223;
- the second light panel 231 includes a connected second main body part 233 and a second edge part 234.
- the second edge part 234 has The bottom and the top of the first edge part 224 are in contact with each other, and the thickness of the second edge part 234 is less than half of the thickness of the second body part 233; the part of the first body part 223 close to the One side of the second edge portion 234 , the second edge portion 234 and the side of the second main body portion 233 close to the second edge portion 234 form the groove portion 240 ; the third lamp bead 250 is disposed on the second edge portion 234 , the reflective layer 260 is at least partially disposed on a side of the second body portion 233 close to the second edge portion 234 , and in the first body portion 223 The side close to the second edge portion 234 .
- the gap between the first lamp panel 221 and the second lamp panel 231 is transferred to the second edge portion 234 and the second main body portion. 233, the depth of the gap between the light panels becomes shallower, which is conducive to the irradiation of light, thereby helping to improve the problem of dark lines in the gaps between the light panels.
- the second edge portion 234 is attached to the first edge portion 224 of the first lamp panel 221, so that the first lamp panel 221 can also have a positioning effect on the second lamp panel 231 and facilitate the installation of the lamp panel.
- the thickness of the first edge portion 224 is one third of the thickness of the first main body portion 223
- the thickness of the second edge portion 234 is one third of the thickness of the second main body portion 233 . one.
- the distance between the bottom of the third lamp bead 250 and the back plate 210 is two-thirds of the thickness of the first main body 223
- the tops of 232 are closer to the same plane, which is beneficial to improving the overall light emission effect of the backlight module 200 .
- inventive concept of the present application can be formed into many embodiments, but the length of the application document is limited and cannot be listed one by one. Therefore, on the premise that there is no conflict, there is no difference between or among the above-described embodiments.
- Technical features can be arbitrarily combined to form new embodiments, and the combination of each embodiment or technical feature will enhance the original technical effect.
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Abstract
一种背光模组(200)和显示装置(100),背光模组(200)包括背板(210)、第一光源组件(220)和第二光源组件(230),第一光源组件(220)包括第一灯板(221)和多个第一灯珠(222),第二光源组件(230)包括第二灯板(231)和多个第二灯珠(232),第一灯板(221)的边缘和第二灯板(231)的边缘相邻且组成凹槽部(240);凹槽部(240)内设有第三灯珠(250)和反射层(260)。
Description
本申请要求于2022年3月11日提交中国专利局,申请号为CN2022102426253,申请名称为“背光模组和显示装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本本申请涉及显示技术领域,尤其涉及一种背光模组和显示装置。
这里的陈述仅提供与本申请有关的背景信息,而不必然地构成现有技术;
在显示领域中,Mini-LED是一种芯片尺寸在100μm×100μm左右的LED芯片,其具有色彩饱和度高、可局部调光、亮度高、节能等优点,被广泛地运用到背光显示器中。
Mini-LED灯板上的LED数量较多(通常有几千甚至上万),目前Mini-LED灯板大多是小尺寸灯板,制作成大尺寸灯板时需要将小灯板拼接起来,这样灯板与灯板之间一般会有间隙,当灯板上Mini-LED发出的光照射到间隙时无法反射回去,导致出现暗线等画质问题,使得光学效果变差。
发明内容
本申请的目的是提供一种背光模组和显示装置,使得背光模组中灯板与灯板之间的间隙处亮度增加,提高光学效果。
本申请公开了一种背光模组,所述背光模组包括背板、第一光源组件和第二光源组件,所述第一光源组件包括第一灯板和多个第一灯珠,所述第一灯板设置在所述背板上,多个所述第一灯珠设置在所述第一灯板上;所述第二光源组件包括第二灯板和多个第二灯珠,所述第二灯板与所述第一灯板并列设置在所述背板上,多个所述第二灯珠设置在所述第二灯板上;所述第一灯板的边缘和所述第二灯板的边缘相邻且组成凹槽部;所述背光模组还包括至少一个第三灯珠和反射层,所述第三灯珠和反射层设置在所述凹槽部内,所述反射层设置在所述凹槽部的底部和/或侧壁,将照射到所述第一灯板和第二灯板之间的间隙中的光反射出。
本申请公开了一种背光模组,所述背光模组包括背板、第一光源组件和第二光源组件,所述第一光源组件,包括第一灯板和多个第一灯珠,所述第一灯板设置在所述背板上,多个所述第一灯珠设置在所述第一灯板上;所述第二光源组件包括第二灯板和多个第二灯珠,所述第二灯板与所述第一灯板并列设置在所述背板上,多个所述第二灯珠设置在所述第二灯板 上;所述第一灯板包括相连的第一主体部和第一边缘部,所述第一主体部和所述第一边缘部的底部平齐,所述第一主体部的顶部高于所述第一边缘部的顶部,所述第一主体部中靠近所述第一边缘部的一侧与所述第一边缘部的顶部形成连续的圆弧形;所述第二灯板包括相连的第二主体部和第二边缘部,所述第二主体部和所述第二边缘部的底部平齐,所述第二主体部的顶部高于所述第二边缘部的顶部,所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧形成连续的圆弧形;所述第一主体部中靠近所述第一边缘部的一侧、所述第一边缘部、所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧组成所述凹槽部;所述背光模组还包括多个第三灯珠和反射层,所述第三灯珠和反射层设置在所述凹槽部内,所述反射层设置在所述凹槽部的底部和侧壁,且不与所述第三灯珠重叠,将照射到所述第一灯板和第二灯板之间的间隙中的光反射出。
本申请公开了一种显示装置,包括背光模组,以及与所述背光模组对应的显示面板,所述背光模组为所述显示面板提供背光源,所述背光模组包括背板、第一光源组件和第二光源组件,所述第一光源组件包括第一灯板和多个第一灯珠,所述第一灯板设置在所述背板上,多个所述第一灯珠设置在所述第一灯板上;所述第二光源组件包括第二灯板和多个第二灯珠,所述第二灯板与所述第一灯板并列设置在所述背板上,多个所述第二灯珠设置在所述第二灯板上;所述第一灯板的边缘和所述第二灯板的边缘相邻且组成凹槽部;所述背光模组还包括至少一个第三灯珠和反射层,所述第三灯珠和反射层设置在所述凹槽部内,所述反射层设置在所述凹槽部的底部和/或侧壁,将照射到所述第一灯板和第二灯板之间的间隙中的光反射出。
本申请通过将相邻灯板的边缘形成高度较低的凹槽部,且在凹槽部内设置第三灯珠和反射层,不仅通过位于灯板边缘的第三灯珠提高灯板边缘的亮度,还利用反射层将第三灯珠发出的光反射到第一灯板和第二灯板之间的间隙中,并将照射到间隙中的光反射出去,使得灯板的间隙发光,使得背光模组中灯板与灯板之间的间隙处亮度增加,从而解决了灯板间隙处暗线的问题,提高了光学效果。
所包括的附图用来提供对本申请实施例的进一步的理解,其构成了说明书的一部分,用于例示本申请的实施方式,并与文字描述一起来阐释本申请的原理。显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。在附图中:
图1是本申请提供的一种显示装置的示意图;
图2是本申请第一实施例提供的一种背光模组的截面示意图;
图3是本申请第一实施例提供的一种背光模组的平面示意图;
图4是本申请第二实施例提供的一种背光模组的截面示意图;
图5是本申请第三实施例提供的第一种背光模组的截面示意图;
图6是本申请第三实施例提供的第二种背光模组的截面示意图;
图7是本申请第四实施例提供的一种背光模组的截面示意图。
需要理解的是,这里所使用的术语、公开的具体结构和功能细节,仅仅是为了描述具体实施例,是代表性的,但是本申请可以通过许多替换形式来具体实现,不应被解释成仅受限于这里所阐述的实施例。
下面参考附图和可选的实施例对本申请作详细说明。
如图1所示,本申请公开了一种显示装置100,所述显示装置100包括显示面板300和背光模组200,所述显示面板300位于所述背光模组200的出光侧,所述背光模组200为所述显示面板300提供背光源。如图2-7所示,在所述背光模组200中,包括背板210、第一光源组件220和第二光源组件230,所述第一光源组件220包括第一灯板221和多个第一灯珠222,所述第一灯板221设置在所述背板210上,多个所述第一灯珠222设置在所述第一灯板221上;所述第二光源组件230包括第二灯板231和多个第二灯珠232,所述第二灯板231与所述第一灯板221并列设置在所述背板210上,多个所述第二灯珠232设置在所述第二灯板231上;所述第一灯板221的边缘和所述第二灯板231的边缘相邻且组成凹槽部240,所述第一灯板221的底部、所述凹槽部240的底部和第二灯板231的底部平齐,所述凹槽部240的顶部低于所述第一灯板221的顶部,也低于所述第二灯板231的顶部;所述背光模组200还包括至少一个第三灯珠250和反射层260,所述第三灯珠250和反射层260设置在所述凹槽部240内,所述反射层260设置在所述凹槽部240的底部和/或侧壁,将照射到所述第一灯板221和第二灯板231之间的间隙中的光反射出。
相对于目前只在灯板间隙处增设反射片解决拼缝暗线问题的方案来说,本申请通过将相邻灯板的边缘形成高度较低的凹槽部240,且在凹槽部240内设置第三灯珠250和反射层260,不仅通过位于灯板边缘的第三灯珠250提高灯板边缘的亮度,使得灯板边缘处的亮度更亮,可以在一定程度上盖过灯板间隙处的暗带;还利用反射层260将第三灯珠250发出的光反射到第一灯板221和第二灯板231之间的间隙中,并将照射到间隙中的光反射出去,使得灯板的间隙发光,使得背光模组200中灯板与灯板之间的间隙处亮度增加;并且凹槽部240的地形结合第三灯珠250和反射层260,使得凹槽部240位置同时具备自发光、聚光和反射光的作用,从而更好地解决了灯板间隙处暗线的问题,提高光的利用率和光学效果。
其中,所述背光模组200可以是一般的直下式背光模组200,也可以是mini-LED背光模组200,还可以是Micro LED背光模组200。对于背光模组200的具体设计,本申请提供了如下具体的实施例:
实施例一:
如图2所示,作为本申请第一实施例提供的一种背光模组的截面示意图,所述第一灯板221包括相连的第一主体部223和第一边缘部224,所述第一主体部223和所述第一边缘部224的底部平齐,所述第一主体部223的顶部高于所述第一边缘部224的顶部;所述第二灯板231为方形结构,所述第一主体部223中靠近所述第一边缘部224的一侧、所述第一边缘部224与所述第二灯板231中靠近所述第一边缘部224的一侧组成所述凹槽部240;所述第三灯珠250设置在所述第一边缘部224上,所述反射层260至少部分设置在所述第一主体部223中靠近所述第一边缘部224的一侧。
在本实施例中,第一灯板221和第二灯板231的边缘形状不同,此时第一边缘部224作为凹槽部240的底部,第一主体部223的侧面和第二主体部233的侧面作为凹槽部240的侧壁。当灯板发生热胀冷缩时,即使第一灯板221和第二灯板231膨胀导致体积增大,也只有第一边缘部224与第二灯板231接触,相对于现有技术中两个相同灯板直接抵接的方案来说,本实施例中第一灯板221和第二灯板231的接触面积更小,挤压面积更小,不易产生开裂的问题。另外,当第一灯板221的两侧都有第二灯板231时,第一灯板221的截面为凸字形。
进一步的,在所述第一灯板221中,反射层260不仅设置在所述第一主体部223中靠近所述第一边缘部224的一侧,还设置在第一边缘部224上,且不与第三灯珠250重叠,将第三灯珠250照射到第一边缘部224上的光线也反射出,从而提高了对光线的利用率。在制作反射层260时,直接在整个第一灯板221上沉积反射材料涂层或粘贴反射片,并避免和第一灯珠222、第三灯珠250重叠,落在第一主体部223上的反射结构形成反光膜270,通过反光膜270可以提高第一主体部223对应区域的亮度;落在第一边缘部224的反射结构形成反射层260,通过反射层260提高第一边缘部224对应区域的亮度,并改善灯板间隙处暗线的问题。
在所述第一主体部上223,多个第一灯珠222阵列排布,在所述第二灯板231上,多个第二灯珠232阵列排布;对于所述凹槽部240内的第三灯珠250,如图3所示,所述凹槽部240内设有多个所述第三灯珠250,沿所述第一灯板221和第二灯板231之间的间隙的长度方向,多个所述第三灯珠250依次间隔排列,并与第一灯珠221和第二灯珠231的排列方式对应。具体的,沿所述第一灯板221和第二灯板231之间的间隙的长度方向,相邻两个所述第三灯珠250之间的间距,与相邻两个所述第一灯珠222之间的间距相等,也与相邻两个所述第二灯珠232之间的间距相等;还可以进一步的,使所述第三灯珠250与相邻所述第一灯 珠222之间的间距,等于所述第三灯珠250与相邻所述第二灯珠232之间的间距,以进一步提高背光模组200的出光均匀性。
实施例二:
如图4所示,作为本申请第二实施例提供的一种背光模组的截面示意图,与第一实施例的区别在于,本实施例中第一灯板221和第二灯板231的形状相同,即所述第一灯板221包括相连的第一主体部223和第一边缘部224,所述第一主体部223和所述第一边缘部224的底部平齐,所述第一主体部223的顶部高于所述第一边缘部224的顶部;所述第二灯板231包括相连的第二主体部233和第二边缘部234,所述第二主体部233和所述第二边缘部234的底部平齐,所述第二主体部233的顶部高于所述第二边缘部234的顶部;所述第一主体部223中靠近所述第一边缘部224的一侧、所述第一边缘部224、所述第二边缘部234和所述第二主体部233中靠近所述第二边缘部234的一侧组成所述凹槽部240;所述第三灯珠250设置在所述第一边缘部224和/或所述第二边缘部234上,所述反射层260至少部分设置在所述第一主体部223中靠近所述第一边缘部224的一侧,以及所述第二主体部233中靠近所述第二边缘部234的一侧。
在本实施例中,当背光模组200中的灯板数量较多时,第一灯板221和第二灯板231的截面形状都为凸字形。相对于第一实施例来说,本实施例中两种灯板的形状都相同,此时所述第一主体部223、第一边缘部224、第二主体部233和第二边缘部234都为方形结构。采用这样的设计,首先灯板的制作更加方便,其次对于组装人员来说,装配过程也比较方便,不需要考虑不同形状灯板的位置和配合问题。本实施例中凹槽部240的底部由第一边缘部224和第二边缘部234组成,凹槽部240的底部面积更大,容纳的第三灯珠250更多,反射层260的面积也更大,使得反射效果更好,有利于进一步提高灯板间隙处的亮度;而且,灯板间隙的两侧都设有等间距的第三灯珠250和反射层260,使得照射和反射到灯板间隙处的光亮度相同,使得灯板间隙以及整体凹槽部240发出光线的均匀性较好。
当然,本实施例中位于第一主体部223和第二主体部233上的反光膜270,以及位于第一边缘部224和第二边缘部234上的反射层260,可以参照如实施例一中的相同设计,以进一步提高对光的利用率。
实施例三:
如图5所示,作为本申请第三实施例提供的一种背光模组的截面示意图,与第二实施例的区别在于,第二实施例中第一主体部223、第二主体部233、第一边缘部224和第二边缘部234的截面形状都是方形的,第一凹槽部240的截面形状也是方形的;而在本实施例中,所述第一主体部223中靠近所述第一边缘部224的一侧与所述第一边缘部224的顶部形成连续的圆弧形,所述第二边缘部234和所述第二主体部233中靠近所述第二边缘部234的一侧 形成连续的圆弧形。
此时,设置在第一主体部223中靠近所述第一边缘部224的一侧的反射层260,以及设置在所述第二主体部233中靠近所述第二边缘部234的一侧的反射层260,还有设置在所述第一边缘部224和第二边缘部234上且不与所述第三灯珠250重叠的反射层260都是弧形的,且弧度都背向拼缝间隙突出,这样凹槽部240内所有的反射层260形成凹面镜结构,利用凹面镜散光的原理,使得凹槽部240整体发出均匀的光。
进一步的,如图6所示,所述第一主体部223包括多个与所述凹槽部240形状相对应的第一灯槽225,所述第一灯珠222与所述第一灯槽225对应安装,且所述第一灯槽225内还设有不与所述第一灯珠222重叠的反光膜270;所述第二主体部233包括多个与所述凹槽部240形状相对应的第二灯槽235,所述第二灯珠232与所述第二灯槽235对应安装,且所述第二灯槽235内还设有不与所述第二灯珠232重叠的反光膜270。此时,背光模组200上的所有灯板组装后,整个灯板表面会形成阵列排布且相同的凹槽结构,通过该凹槽结构使得对应灯珠发出均匀的光线,使得背光模组200的整体出光均匀。当然在其它实施例中,对于第一灯珠222下方对应的第一灯板221,以及第二灯珠232下方对应的第二灯板231,也可以采用本实施例中的灯槽结构,同样能够提高背光模组200的整体出光均匀性。
作为一种可选的实施方式,所述凹槽部240、第一灯槽225和所述第二灯槽235都为圆弧形凹槽,所述凹槽部240的宽度、深度,分别与所述第一灯槽225的宽度、深度相同,也分别与所述第二灯槽235的宽度、深度相同。对应的,在第一实施例和第二实施例中,作为一种可选的实施方式,所述凹槽部240、第一灯槽225和所述第二灯槽235都为方形凹槽,所述凹槽部240的宽度、深度,分别与所述第一灯槽225的宽度、深度相同,也分别与所述第二灯槽235的宽度、深度相同。采用这样的设计方便第一灯板221和第二灯板231的加工,也有利于提高背光模组200的出光均匀性。
实施例四:
如图7所示,作为本申请第四实施例提供的一种背光模组的截面示意图,与第一实施例的区别在于,除了第一灯板221还有第一边缘部224外,第二灯板231也有第二边缘部234,且第一边缘部224和第二边缘部234交错配合。具体的,所述第一灯板221包括相连的第一主体部223和第一边缘部224,所述第一主体部223和所述第一边缘部224的底部平齐,所述第一边缘部224的厚度小于所述第一主体部223的厚度的二分之一;所述第二灯板231包括相连的第二主体部233和第二边缘部234,所述第二边缘部234的底部和所述第一边缘部224的顶部相贴,所述第二边缘部234的厚度小于所述第二主体部233的厚度的二分之一;所述第一主体部223中靠近所述第二边缘部234的一侧、所述第二边缘部234和所述第二主体部233中靠近所述第二边缘部234的一侧组成所述凹槽部240;所述第三灯珠250设置在 所述第二边缘部234上,所述反射层260至少部分设置在所述第二主体部233中靠近所述第二边缘部234的一侧,以及所述第一主体部223中靠近所述第二边缘部234的一侧。
在本实施例中,通过第一边缘部224和第二边缘部234的交错设置,使得第一灯板221和第二灯板231之间的间隙转移到了第二边缘部234和第二主体部233之间,使得灯板间隙的深度变浅,有利于光线照射进去,从而有利于改善灯板间隙的暗线问题。另外,在组装灯板时,先在背板210上安装好第一灯板221,然后再将第二灯板231安装到相邻两个第一灯板221之间,使得第二灯板231的第二边缘部234贴合到第一灯板221的第一边缘部224上,这样第一灯板221还能起到对第二灯板231的对位效果,方便灯板的安装。
进一步的,所述第一边缘部224的厚度为所述第一主体部223的厚度的三分之一,所述第二边缘部234的厚度为所述第二主体部233的厚度的三分之一。此时第三灯珠250的底部与背板210之间的间距为第一主体部223厚度的三分之二,第三灯珠250的顶部与第一灯珠222的顶部、第二灯珠232的顶部更趋近于同一平面,有利于提高背光模组200的整体出光效果。
需要说明的是,本申请的发明构思可以形成非常多的实施例,但是申请文件的篇幅有限,无法一一列出,因而,在不相冲突的前提下,以上描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例,各实施例或技术特征组合之后,将会增强原有的技术效果。
以上内容是结合具体的可选实施方式对本申请所作的进一步详细说明,不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本申请的保护范围。
Claims (18)
- 一种背光模组,包括:背板;第一光源组件,包括第一灯板和多个第一灯珠,所述第一灯板设置在所述背板上,多个所述第一灯珠设置在所述第一灯板上;以及第二光源组件,包括第二灯板和多个第二灯珠,所述第二灯板与所述第一灯板并列设置在所述背板上,多个所述第二灯珠设置在所述第二灯板上;所述第一灯板的边缘和所述第二灯板的边缘相邻且组成凹槽部;所述背光模组还包括至少一个第三灯珠和反射层,所述第三灯珠和反射层设置在所述凹槽部内,所述反射层设置在所述凹槽部的底部和/或侧壁,将照射到所述第一灯板和第二灯板之间的间隙中的光反射出。
- 如权利要求1所述的背光模组,其中,所述第一灯板包括相连的第一主体部和第一边缘部,所述第一主体部和所述第一边缘部的底部平齐,所述第一主体部的顶部高于所述第一边缘部的顶部;所述第二灯板为方形结构,所述第一主体部中靠近所述第一边缘部的一侧、所述第一边缘部与所述第二灯板中靠近所述第一边缘部的一侧组成所述凹槽部;所述第三灯珠设置在所述第一边缘部上,所述反射层至少部分设置在所述第一主体部中靠近所述第一边缘部的一侧。
- 如权利要求2所述的背光模组,其中,所述反射层还设置在所述第一边缘部上,且不与所述第三灯珠重叠。
- 如权利要求1所述的背光模组,其中,所述第一灯板包括相连的第一主 体部和第一边缘部,所述第一主体部和所述第一边缘部的底部平齐,所述第一主体部的顶部高于所述第一边缘部的顶部;所述第二灯板包括相连的第二主体部和第二边缘部,所述第二主体部和所述第二边缘部的底部平齐,所述第二主体部的顶部高于所述第二边缘部的顶部;所述第一主体部中靠近所述第一边缘部的一侧、所述第一边缘部、所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧组成所述凹槽部;所述第三灯珠设置在所述第一边缘部或所述第二边缘部上,所述反射层至少部分设置在所述第一主体部中靠近所述第一边缘部的一侧,以及所述第二主体部中靠近所述第二边缘部的一侧。
- 如权利要求1所述的背光模组,其中,所述第一灯板包括相连的第一主体部和第一边缘部,所述第一主体部和所述第一边缘部的底部平齐,所述第一主体部的顶部高于所述第一边缘部的顶部;所述第二灯板包括相连的第二主体部和第二边缘部,所述第二主体部和所述第二边缘部的底部平齐,所述第二主体部的顶部高于所述第二边缘部的顶部;所述第一主体部中靠近所述第一边缘部的一侧、所述第一边缘部、所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧组成所述凹槽部;所述第三灯珠设置在所述第一边缘部和所述第二边缘部上,所述反射层至少部分设置在所述第一主体部中靠近所述第一边缘部的一侧,以及所述第二主体部中靠近所述第二边缘部的一侧。
- 如权利要求5所述的背光模组,其中,所述反射层还设置在所述第一边缘部和第二边缘部上,且不与所述第三灯珠重叠。
- 如权利要求5所述的背光模组,其中,所述第一灯板和所述第二灯板的形状相同。
- 如权利要求7所述的背光模组,其中,所述第一主体部、第一边缘部、第二主体部和第二边缘部都为方形结构。
- 如权利要求8所述的背光模组,其中,所述第一主体部包括多个与所述凹槽部形状相对应的第一灯槽,所述第一灯珠与所述第一灯槽对应安装,且所述第一灯槽内还设有不与所述第一灯珠重叠的反光膜;所述第二主体部包括多个与所述凹槽部形状相对应的第二灯槽,所述第二灯珠与所述第二灯槽对应安装,且所述第二灯槽内还设有不与所述第二灯珠重叠的反光膜;所述凹槽部、第一灯槽和所述第二灯槽都为方形凹槽,所述凹槽部的宽度、深度,分别与所述第一灯槽的宽度、深度相同,也分别与所述第二灯槽的宽度、深度相同。
- 如权利要求5所述的背光模组,其中,所述第一主体部中靠近所述第一边缘部的一侧与所述第一边缘部的顶部形成连续的圆弧形,所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧形成连续的圆弧形。
- 如权利要求10所述的背光模组,其中,所述第一主体部包括多个与所述凹槽部形状相对应的第一灯槽,所述第一灯珠与所述第一灯槽对应安装,且所述第一灯槽内还设有不与所述第一灯珠重叠的反光膜;所述第二主体部包括多个与所述凹槽部形状相对应的第二灯槽,所述第二灯珠与所述第二灯槽对应安装,且所述第二灯槽内还设有不与所述第二灯珠重叠的反光膜;所述凹槽部、第一灯槽和所述第二灯槽都为圆弧形凹槽,所述凹槽部的宽度、深度,分别与所述第一灯槽的宽度、深度相同,也分别与所述第二灯槽的宽度、深度相同。
- 如权利要求1所述的背光模组,其中,所述第一灯板包括相连的第一主体部和第一边缘部,所述第一主体部和所述第一边缘部的底部平齐,所述第一边缘部的厚度小于所述第一主体部的厚度的二分之一;所述第二灯板包括相连的第二主体部和第二边缘部,所述第二边缘部的底部和所述第一边缘部的顶部相贴,所述第二边缘部的厚度小于所述第二主体部的厚度的二分之一;所述第一主体部中靠近所述第二边缘部的一侧、所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧组成所述凹槽部;所述第三灯珠设置在所述第二边缘部上,所述反射层至少部分设置在所述第二主体部中靠近所述第二边缘部的一侧,以及所述第一主体部中靠近所述第二边缘部的一侧。
- 如权利要求12所述的背光模组,其中,所述第一边缘部的厚度为所述第一主体部的厚度的三分之一,所述第二边缘部的厚度为所述第二主体部的厚度的三分之一。
- 如权利要求1所述的背光模组,其中,所述凹槽部内设有多个所述第三灯珠,沿所述第一灯板和第二灯板之间的间隙的长度方向,多个所述第三灯珠依次间隔排列。
- 如权利要求14所述的背光模组,其中,沿所述第一灯板和第二灯板之间的间隙的长度方向,相邻两个所述第三灯珠之间的间距,与相邻两个所述第一灯珠之间的间距相等,也与相邻两个所述第二灯珠之间的间距相等。
- 如权利要求14所述的背光模组,其中,所述第三灯珠与相邻所述第一灯珠之间的间距,等于所述第三灯珠与相邻所述第二灯珠之间的间距。
- 一种背光模组,包括:背板;第一光源组件,包括第一灯板和多个第一灯珠,所述第一灯板设置在所述背板上,多个所述第一灯珠设置在所述第一灯板上;以及第二光源组件,包括第二灯板和多个第二灯珠,所述第二灯板与所述第一灯板并列设置在所述背板上,多个所述第二灯珠设置在所述第二灯板上;所述第一灯板包括相连的第一主体部和第一边缘部,所述第一主体部和所述第一边缘部的底部平齐,所述第一主体部的顶部高于所述第一边缘部的顶部,所述第一主体部中靠近所述第一边缘部的一侧与所述第一边缘部的顶部形成连续的圆弧形;所述第二灯板包括相连的第二主体部和第二边缘部,所述第二主体部和所述第二边缘部的底部平齐,所述第二主体部的顶部高于所述第二边缘部的顶部,所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧形成连续的圆弧形;所述第一主体部中靠近所述第一边缘部的一侧、所述第一边缘部、所述第二边缘部和所述第二主体部中靠近所述第二边缘部的一侧组成所述凹槽部;所述背光模组还包括多个第三灯珠和反射层,所述第三灯珠和反射层设置在所述凹槽部内,所述反射层设置在所述凹槽部的底部和侧壁,且不与所述第三灯珠重叠,将照射到所述第一灯板和第二灯板之间的间隙中的光反射出。
- 一种显示装置,包括背光模组,以及与所述背光模组对应的显示面板,所述背光模组为所述显示面板提供背光源,所述背光模组包括:背板;第一光源组件,包括第一灯板和多个第一灯珠,所述第一灯板设置在所述背板上,多个所述第一灯珠设置在所述第一灯板上;以及第二光源组件,包括第二灯板和多个第二灯珠,所述第二灯板与所述第一灯板并列设置在所述背板上,多个所述第二灯珠设置在所述第二灯板上;所述第一灯板的边缘和所述第二灯板的边缘相邻且组成凹槽部;所述背光模组还包括至少一个第三灯珠和反射层,所述第三灯珠和反射层设置在所述凹槽部内,所述反射层设置在所述凹槽部的底部和/或侧壁,将照射到所述第一灯板和第二灯板之间的间隙中的光反射出。
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| CN116312270A (zh) * | 2023-02-03 | 2023-06-23 | 深圳市奥拓电子股份有限公司 | 一种led显示模组及显示屏 |
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- 2022-12-05 WO PCT/CN2022/136562 patent/WO2023169014A1/zh not_active Ceased
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| CN114677917A (zh) | 2022-06-28 |
| CN114677917B (zh) | 2024-03-19 |
| US20230288627A1 (en) | 2023-09-14 |
| US12174409B2 (en) | 2024-12-24 |
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