Backlight structure, backlight module and display device

Abstract

The invention provides a backlight structure, a backlight module and a display device.The backlight structure comprises a bearing substrate, a plurality of light-emitting units and a plurality of sealing parts, the light-emitting units are arranged on the bearing substrate in an array mode, and each light-emitting unit comprises at least two adjacent light-emitting subunits; one light-emitting subunit in the light-emitting unit is correspondingly connected with one control chip, different light-emitting subunits in one light-emitting unit are correspondingly connected with different control chips, the plurality of sealing elements are arranged on the bearing substrate, the sealing elements are used for covering the light-emitting units, and one sealing element corresponds to one light-emitting unit. According to the backlight structure, the at least two light-emitting subunits are integrated into one light-emitting unit, the light-emitting area of each light-emitting subunit is small, halo caused by light emitted by the single light-emitting subunit is small, the halo phenomenon generated when the backlight structure works can be weakened, and then the visual effect and the user experience feeling of the display device are improved.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly relates to a backlight structure, a backlight module, and a display device. Background Art

[0002] Mini-LED is another screen lighting technology besides LCD and OLED. Compared with traditional LED backlight technologies, a display using Mini-LED backlight divides the surface light source into individually controllable areas, and then determines the backlight brightness of each partition according to the characteristics of the input image. In this way, not only can light leakage be effectively suppressed and the contrast of the display screen be improved, but also the power consumption can be greatly reduced and defects such as ghosting can be reduced, doubling the shock feeling of the picture.

[0003] Existing Mini-LED displays basically use support columns to support the diffusion plate and optical film sheets. The diffusion plate cannot directly contact the lamp beads (the distance between the diffusion plate and the lamp board is abbreviated as OD). Currently, the commonly used structure has OD between 5 mm and 7 mm. Since the light-emitting angle of the lamp beads is 120°, the edges of the lamp beads are in a lit state after being turned on, and the light emitted by the lamp beads will radiate in all directions, causing halos, reducing the visual effect of the display device, and affecting the user experience. Summary of the Invention

[0004] The purpose of the present application is to provide a backlight structure, a backlight module, and a display device to solve the technical problem that the backlight structure in related technologies is prone to generating halos and reducing the visual effect of the display device.

[0005] In a first aspect, the present application provides a backlight structure, including:

[0006] A carrier substrate;

[0007] A plurality of light-emitting units, the plurality of light-emitting units are arranged in an array on the carrier substrate, the light-emitting unit includes at least two adjacent light-emitting sub-units, one light-emitting sub-unit in the light-emitting unit is correspondingly connected to one control chip, and different light-emitting sub-units in one light-emitting unit are correspondingly connected to different control chips; and

[0008] A plurality of seals, the plurality of seals are arranged on the carrier substrate, the seals are used to cover the light-emitting units, and one seal is arranged corresponding to one light-emitting unit.

[0009] In the backlight structure provided by the present application, the backlight structure includes a carrier substrate, a plurality of light-emitting units and a plurality of seals, a plurality of light-emitting unit arrays are arranged on the carrier substrate, a light-emitting unit includes at least two adjacently arranged light-emitting sub-units, a light-emitting sub-unit in the light-emitting unit is correspondingly connected to a control chip, different light-emitting sub-units in a light-emitting unit are correspondingly connected to different control chips, and a plurality of seals are arranged on the carrier substrate, the seals are used to cover the light-emitting units, and a seal is arranged corresponding to a light-emitting unit. At least two light-emitting sub-units are integrated into a light-emitting unit, the light-emitting area of ​​the light-emitting sub-unit is small and the halo caused by the light emitted by a single light-emitting sub-unit is small, which can reduce the phenomenon of halo generated when the backlight structure is working, thereby improving the visual effect and user experience of the display device. In addition, the distance between two adjacent light-emitting units is far, and a control chip can control at least two distant light-emitting sub-units to emit light, which can further reduce the halo phenomenon when the light-emitting part controlled by a single control chip emits light.

[0010] Wherein, the backlight structure also includes an isolating member, which is arranged in the sealing member and between two adjacent light-emitting sub-units. The isolating member can be used to block the light emitted by one light-emitting sub-unit from propagating to the light-emitting area of ​​another light-emitting sub-unit.

[0011] Wherein, a reflective layer is provided on a side of the isolation member facing the light-emitting sub-unit, and the reflective layer can be used to reflect the light emitted by the light-emitting sub-unit.

[0012] Wherein, the plurality of light-emitting subunits include a first light-emitting subunit and a second light-emitting subunit;

[0013] The backlight structure further includes a one-way transmission component, which is disposed on the carrier substrate, and includes a first one-way transmission component and a second one-way transmission component, wherein the first one-way transmission component and the second one-way transmission component are disposed at an angle, and the first one-way transmission component corresponds to the first light-emitting sub-unit, and the second one-way transmission component corresponds to the second light-emitting sub-unit;

[0014] The side of the first unidirectional transmission member facing the first light-emitting sub-unit is used to transmit the light emitted by the first light-emitting sub-unit, and the side of the first unidirectional transmission member facing away from the first light-emitting sub-unit is used to reflect the light emitted by the second light-emitting sub-unit, the side of the second unidirectional transmission member facing the second light-emitting sub-unit is used to transmit the light emitted by the second light-emitting sub-unit, and the side of the second unidirectional transmission member facing away from the second light-emitting sub-unit is used to reflect the light emitted by the first light-emitting sub-unit.

[0015] Wherein, the shape of the first one-way transmissive member is arc-shaped, and the first one-way transmissive member protrudes in a direction away from the first light-emitting sub-unit; the shape of the second one-way transmissive member is arc-shaped, and the second one-way transmissive member protrudes in a direction away from the second light-emitting sub-unit.

[0016] Wherein, the pitch α between two adjacent light-emitting units satisfies: 10 mm ≤ α ≤ 25 mm.

[0017] Wherein, the light-emitting unit includes four light-emitting sub-units, and the four light-emitting sub-units are respectively connected to four different control chips;

[0018] One control chip is correspondingly connected to the light-emitting sub-units in four light-emitting units.

[0019] In a second aspect, the present application provides a backlight module, which includes a backplane, a middle frame and the backlight structure as described above. The backlight structure is arranged on the backplane, the middle frame surrounds the outer periphery of the backplane, and the middle frame is used for arranging a display panel.

[0020] Wherein, the backlight module further includes an optical film layer. The backplane includes a bottom plate and side plates surrounding the bottom plate. The backlight structure is arranged on the bottom plate, the optical film layer is fixed on the side plates, and the optical film layer is arranged on a side of the backlight structure away from the bottom plate. The optical film layer is used for homogenizing the visible light emitted by the backlight structure.

[0021] In the backlight module provided by the present application, the plurality of light-emitting units are arranged in an array on the carrier substrate. The light-emitting unit includes at least two adjacent light-emitting sub-units. One light-emitting sub-unit in the light-emitting unit is correspondingly connected to one control chip, and different light-emitting sub-units in one light-emitting unit are correspondingly connected to different control chips. The plurality of seals are arranged on the carrier substrate, and the seals are used for covering the light-emitting units. One seal is arranged corresponding to one light-emitting unit. Integrating at least two light-emitting sub-units into one light-emitting unit, the light-emitting area of the light-emitting sub-unit is small and the halo caused by the light emitted by a single light-emitting sub-unit is small, which can weaken the phenomenon of halo generated when the backlight module works, thereby improving the visual effect and user experience of the display device. Moreover, the pitch between two adjacent light-emitting units is far, and at least two relatively far light-emitting sub-units that can be controlled by one control chip can emit light, which can further reduce the halo phenomenon when the light-emitting part controlled by a single control chip emits light.

[0022] In a third aspect, the present application provides a display device, which includes a display panel and the backlight module as described above. The display panel is arranged on the middle frame.

[0023] In the display device provided by the present application, the multiple light-emitting unit arrays are disposed on the carrier substrate. The light-emitting unit includes at least two adjacent light-emitting subunits. One light-emitting subunit in the light-emitting unit is correspondingly connected to one control chip, and different light-emitting subunits in one light-emitting unit are correspondingly connected to different control chips. The multiple sealing members are disposed on the carrier substrate, and the sealing members are used to cover the light-emitting units, and one sealing member is disposed corresponding to one light-emitting unit. Integrating at least two light-emitting subunits into one light-emitting unit, the light-emitting area of the light-emitting subunit is small and the halo caused by the light emitted by a single light-emitting subunit is small, which can weaken the phenomenon of halo generated when the display device works, thereby improving the visual effect and user experience of the display device. Moreover, the distance between two adjacent light-emitting units is far, and at least two relatively far light-emitting subunits that can be controlled by one control chip can emit light, which can further reduce the halo phenomenon when the light-emitting part controlled by a single control chip emits light. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 is a schematic structural diagram of a backlight structure provided by an embodiment of the present application;

[0026] Figure 2 is a schematic connection structure diagram of a control chip and a light-emitting unit provided by an embodiment of the present application;

[0027] Figure 3 is a schematic structural diagram of a control chip connecting four light-emitting units provided by an embodiment of the present application;

[0028] Figure 4 is a control circuit of a control chip provided by an embodiment of the present application Figure 1 ;

[0029] Figure 5 is a schematic control principle block diagram of a control chip provided by an embodiment of the present application;

[0030] Figure 6 is a control circuit of a control chip provided by an embodiment of the present application Figure 2 ;

[0031] Figure 7It is a schematic structural diagram of a light-emitting unit provided by an embodiment of the present application;

[0032] Figure 8 It is a schematic diagram showing the light emission of the first sub-light-emitting unit when a backlight structure provided by an embodiment of the present application includes a spacer;

[0033] Figure 9 It is a schematic diagram showing the light emission of both the first sub-light-emitting unit and the second sub-light-emitting unit when a backlight structure provided by an embodiment of the present application includes a spacer;

[0034] Figure 10 It is a schematic structural diagram of a backlight structure provided by an embodiment of the present application including a one-way transmission component;

[0035] Figure 11 It is a schematic diagram showing the light emission of the first sub-light-emitting unit when a backlight structure provided by an embodiment of the present application includes a one-way transmission component Figure 1 ;

[0036] Figure 12 It is a schematic diagram showing the light emission of both the first sub-light-emitting unit and the second sub-light-emitting unit when a backlight structure provided by an embodiment of the present application includes a one-way transmission component Figure 1 ;

[0037] Figure 13 It is a schematic diagram showing the light emission of the first sub-light-emitting unit when a backlight structure provided by an embodiment of the present application includes a one-way transmission component Figure 2 ;

[0038] Figure 14 It is a schematic diagram showing the light emission of both the first sub-light-emitting unit and the second sub-light-emitting unit when a backlight structure provided by an embodiment of the present application includes a one-way transmission component Figure 2 ;

[0039] Figure 15 It is a schematic structural diagram of a backlight module provided by an embodiment of the present application;

[0040] Figure 16 It is a schematic structural diagram of a display device provided by an embodiment of the present application.

[0041] Reference numeral description:

[0042] Display device 10000, backlight module 1000, display panel 2000, backlight structure 100, carrier substrate 10, light-emitting unit 20, first light-emitting unit 201, second light-emitting unit 202, third light-emitting unit 203, fourth light-emitting unit 204, light-emitting sub-unit 21, first light-emitting sub-unit 211, second light-emitting sub-unit 212, seal 30, control chip 40, spacer 50, one-way transmission component 60, first one-way transmission member 61, second one-way transmission member 62, backplane 200, middle frame 300. Detailed implementation manners

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0045] In this specification, for convenience, terms indicating orientation or positional relationships such as "middle part", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used to describe the positional relationships of the constituent elements with reference to the accompanying drawings. This is only for the convenience of describing this specification and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present disclosure. The positional relationships of the constituent elements are appropriately changed according to the directions of the described constituent elements. Therefore, it is not limited to the terms described in this specification, and can be appropriately replaced according to the circumstances.

[0046] In this specification, unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate member, or the internal communication of two elements. For those of ordinary skill in the art, the meanings of the above terms in the present disclosure can be understood according to the circumstances.

[0047] Mini-LED is another screen lighting technology besides LCD and OLED. Compared with the traditional LED backlight technology, a display using Mini-LED backlight divides the surface light source into independent controlled areas, and then determines the backlight brightness of each partition according to the characteristics of the input image. In this way, not only can light leakage be effectively suppressed and the contrast of the display picture be improved, but also the power consumption can be greatly reduced and the occurrence of afterimages and other defects can be reduced, doubling the shock feeling of the picture.

[0048] Currently, almost all Mini-LED displays use support columns to support the diffusion plate and optical film. The diffusion plate cannot be in direct contact with the lamp beads (the distance between the diffusion plate and the lamp board is abbreviated as OD). The commonly used structure for OD is between 5 mm and 7 mm. Since the light-emitting angle of the lamp beads is 120°, the edges of the lamp beads are in the lit state after being turned on, and the light emitted by the lamp beads will radiate in all directions, causing halos, reducing the visual effect of the display device, and affecting the user experience.

[0049] Please refer to Figures 1 to 2 , Figure 1 which is a schematic structural diagram of a backlight structure provided by an embodiment of the present application, Figure 2 and which is a schematic connection structure diagram of a control chip and a light-emitting unit provided by an embodiment of the present application.

[0050] The present application provides a backlight structure 100 to solve the technical problem in the related art that the backlight structure is prone to generating halos and reducing the visual effect of the display device.

[0051] The backlight structure 100 includes a carrier substrate 10, a plurality of light-emitting units 20, and a plurality of seals 30. The plurality of light-emitting units 20 are arranged in an array on the carrier substrate 10. The light-emitting unit 20 includes at least two adjacent light-emitting sub-units 21. One light-emitting sub-unit 21 in the light-emitting unit 20 is correspondingly connected to one control chip 40, and different light-emitting sub-units 21 in one light-emitting unit 20 are correspondingly connected to different control chips 40. The plurality of seals 30 are arranged on the carrier substrate 10, and the seals 30 are used to cover the light-emitting units 20, and one seal 30 is arranged corresponding to one light-emitting unit 20.

[0052] The carrier substrate 10 is used to carry the plurality of light-emitting units 20 and the plurality of sealing members 30. In the present embodiment, the carrier substrate 10 may be a flexible substrate. Optionally, the carrier substrate 10 may be made of any one or more of the following materials: polyimide, polyethylene terephthalate (PET), polyethylene naphthalate two formic acid glycol estr (PEN), cyclo-olefin polymer (COP), polycarbonate (PC), polystyrene (PS), polypropylene (PP), polytetrafluoroethylene (PTFE). In other embodiments, the carrier substrate 10 may also be a non-flexible substrate, such as glass, ceramic, etc. The present application does not limit this.

[0053] The plurality of light-emitting units 20 are arranged in an array on the carrier substrate 10. The light-emitting unit 20 includes at least two adjacent light-emitting sub-units 21. It should be noted that in the present embodiment, one light-emitting unit 20 represents a light-emitting area, that is, equivalent to an LED light-emitting chip in the related art. And, in the present embodiment, one light-emitting unit 20 includes at least two adjacent light-emitting sub-units 21. The light-emitting sub-unit 21 is equivalent to a smaller-sized LED chip. Four light-emitting sub-units 21 are integrated into one light-emitting unit 20. The light-emitting area of the light-emitting sub-unit 21 is small and the halo caused by the light emitted by a single light-emitting sub-unit 21 is small, which can weaken the phenomenon of halo generated when the backlight structure 100 works, thereby improving the visual effect and user experience of the display device 10000.

[0054] In the present embodiment, one light-emitting unit 20 includes four adjacent light-emitting sub-units 21, and the four light-emitting sub-units 21 are arranged in a cross shape in an array. Optionally, in other embodiments, one light-emitting unit 20 may also include other numbers of light-emitting sub-units 21. For example, the number of light-emitting sub-units 21 in one light-emitting unit 20 may be 2, or 3, or 5, or more than 5. The present application only takes one light-emitting unit 20 including four adjacent light-emitting sub-units 21 as an example for illustration, and should not be construed as a limitation of the present application.

[0055] Further, in the present embodiment, one of the light-emitting sub-units 21 in the light-emitting unit 20 is correspondingly connected to one control chip 40, and different light-emitting sub-units 21 in one light-emitting unit 20 are correspondingly connected to different control chips 40. In other words, within one light-emitting unit 20, multiple light-emitting sub-units 21 are controlled to emit light by multiple different control chips 40, and multiple light-emitting sub-units 21 can independently control their respective brightness, which is beneficial to improving the resolution and contrast of the display device 10000 to which the backlight structure 100 is applied. For example, in the present embodiment, four light-emitting sub-units 21 in one light-emitting unit 20 are controlled to emit light by four different control chips 40, and the four light-emitting sub-units 21 can be used to emit light with different brightness or the same brightness.

[0056] Moreover, in the present embodiment, one control chip 40 controls one light-emitting sub-unit 21 in multiple different light-emitting units 20. It should be noted that in the present embodiment, the distance between two adjacent light-emitting units 20 is relatively far. When one control chip 40 controls the light-emitting sub-units 21 in four light-emitting units 20, the four relatively far light-emitting sub-units 21 that one control chip 40 can control emit light, which can further reduce the halo phenomenon when the light-emitting part controlled by a single control chip 40 emits light. Optionally, in the present embodiment, the distance α between two adjacent light-emitting units 20 satisfies: 10mm ≤ α ≤ 25mm. The distance between two adjacent light-emitting units 20 can be 10mm, or 12mm, or 15mm, or 17mm, or 18mm, or 19mm, or 20mm, or 21mm, or 23mm, or 24mm, or 25mm, or other values within 10mm - 25mm. The present application does not limit this.

[0057] It should be further noted that when one control chip 40 controls the light-emitting sub-units 21 in four light-emitting units 20, one control chip 40 can jointly control the light-emitting sub-units 21 in four light-emitting units 20 and control the light-emitting sub-units 21 in four light-emitting units 20 to emit light with the same brightness, or one control chip 40 can separately control the light-emitting sub-units 21 in four light-emitting units 20 and control the light-emitting sub-units 21 in four light-emitting units 20 to emit light with different brightness. The present application does not limit this.

[0058] Please refer to Figures 3 to 6 , Figure 3 which is a schematic structural diagram of a control chip connecting four light-emitting units provided by the embodiment of the present application. Figure 4It is a control circuit of a control chip provided by an embodiment of the present application Figure 1 , where D1-D9 represent each light-emitting unit, and IC1-IC4 represent each control chip. Figure 5 It is a control principle block diagram of a control chip provided by an embodiment of the present application, where Output CH1-4 represent that the control chip outputs and controls four of the light-emitting sub-units. Figure 6 It is a control circuit of a control chip provided by an embodiment of the present application Figure 2 . Among them, ID-1-1 represents the first control chip in the first row, and each control chip controls four of the light-emitting sub-units respectively.

[0059] It should be noted that, in this embodiment, one control chip 40 controls the light-emitting sub-units at different positions in four of the light-emitting units 20, and one control chip 40 is provided between every four adjacent light-emitting units 20. Specifically, for example, in this embodiment, multiple light-emitting units 20 include a first light-emitting unit 201, a second light-emitting unit 202, a third light-emitting unit 203, and a fourth light-emitting unit 204. Among them, the light-emitting sub-units 21 within the first light-emitting unit 201, the second light-emitting unit 202, the third light-emitting unit 203, and the fourth light-emitting unit 204 are all commonly electrically connected to the same control chip 40. Specifically, the control chip 40 is electrically connected to the light-emitting sub-unit 21 in the lower right corner of the first light-emitting unit 201, the light-emitting sub-unit 21 in the lower left corner of the second light-emitting unit 202, the light-emitting sub-unit 21 in the upper right corner of the third light-emitting unit 203, and the light-emitting sub-unit 21 in the upper left corner of the fourth light-emitting unit 204. The control chip 40 can be used to control the light-emitting conditions of the light-emitting sub-unit 21 in the lower right corner of the first light-emitting unit 201, the light-emitting sub-unit 21 in the lower left corner of the second light-emitting unit 202, the light-emitting sub-unit 21 in the upper right corner of the third light-emitting unit 203, and the light-emitting sub-unit 21 in the upper left corner of the fourth light-emitting unit 204.

[0060] The light-emitting structure of the present application further includes a plurality of the seals 30, and the plurality of the seals 30 are disposed on the carrier substrate 10. The seal 30 is used to cover the light-emitting unit 20, and the seal 30 can be used to seal the light-emitting unit 20 to prevent the light-emitting unit 20 from being eroded by water and oxygen in the external environment or being easily damaged by external objects, which can improve the service life of the light-emitting structure. Further, one seal 30 is provided corresponding to one light-emitting unit 20, that is, one seal 30 is used to seal the light-emitting area of one light-emitting unit 20. Optionally, the material of the seal 30 includes, but is not limited to, materials with good sealing performance such as epoxy resin, silica gel, and glass encapsulation materials.

[0061] In the backlight structure 100 provided by the present application, the backlight structure 100 includes the carrier substrate 10, a plurality of the light-emitting units 20, and a plurality of the seals 30. The plurality of light-emitting units 20 are arranged in an array on the carrier substrate 10. The light-emitting unit 20 includes at least two adjacent light-emitting sub-units 21. One light-emitting sub-unit 21 in the light-emitting unit 20 is correspondingly connected to one control chip 40, and different light-emitting sub-units 21 in one light-emitting unit 20 are correspondingly connected to different control chips 40. The plurality of seals 30 are disposed on the carrier substrate 10, and the seal 30 is used to cover the light-emitting unit 20, and one seal 30 is provided corresponding to one light-emitting unit 20. Integrating at least two light-emitting sub-units 21 into one light-emitting unit 20, the light-emitting area of the light-emitting sub-unit 21 is small and the halo caused by the light emitted by a single light-emitting sub-unit 21 is small, which can weaken the phenomenon of halo generated when the backlight structure 100 works, and further improve the visual effect and user experience of the display device 10000. Moreover, the distance between two adjacent light-emitting units 20 is far, and at least two relatively far light-emitting sub-units 21 that can be controlled by one control chip 40 emit light, which can further reduce the halo phenomenon when the light-emitting part controlled by a single control chip 40 emits light.

[0062] Please refer to Figures 7 to 9 , Figure 7 which is a schematic structural diagram of a light-emitting unit provided by an embodiment of the present application, Figure 8 which is a schematic diagram of the first sub-light-emitting unit emitting light when the backlight structure provided by the embodiment of the present application includes a separator, Figure 9 which is a schematic diagram of the first sub-light-emitting unit and the second sub-light-emitting unit both emitting light when the backlight structure provided by the embodiment of the present application includes a separator.

[0063] In one embodiment, the backlight structure 100 further includes a separator 50. The separator 50 is disposed within the seal 30 and between two adjacent light-emitting sub-units 21. The separator 50 can be used to block the light emitted by one light-emitting sub-unit 21 from propagating to the light-emitting area of another light-emitting sub-unit 21.

[0064] It should be noted that the number of the separators 50 corresponds to the seal 30 and the light-emitting unit 20, that is, one light-emitting unit 20 is correspondingly provided with one separator 50. In other words, one separator 50 is disposed within one seal 30.

[0065] The separator 50 is disposed between two adjacent light-emitting sub-units 21. The separator 50 can be used to block the light emitted by one light-emitting sub-unit 21 from propagating to the light-emitting area of another light-emitting sub-unit 21. In other words, the separator 50 can be used to prevent the light emitted between two adjacent light-emitting sub-units 21 from mixing, avoid the interference of the light between each light-emitting sub-unit 21, and is beneficial to improving the light-emitting effect of the light-emitting structure.

[0066] Further, it should be noted that when the number of the light-emitting sub-units 21 is more than two, the separator 50 further includes a plurality of partition members, and one partition member is disposed between two adjacent light-emitting sub-units 21.

[0067] Further, in one embodiment, a reflective layer is disposed on the side of the separator 50 facing the light-emitting sub-unit 21. The reflective layer can be used to reflect the light emitted by the light-emitting sub-unit 21, and can improve the light utilization rate of a single light-emitting sub-unit 21. As Figures 8 to 9 shown, for example, two adjacent light-emitting sub-units 21 include a first light-emitting sub-unit 211 and a second light-emitting sub-unit 212. A reflective layer is disposed on the side of the separator 50 facing the first light-emitting sub-unit 211, and a reflective layer is also disposed on the side of the separator 50 facing the second light-emitting sub-unit 212. Reflective layers are disposed on both sides of the separator 50 to avoid the interference of the light emitted between the first light-emitting sub-unit 211 and the second light-emitting sub-unit 212 and improve the light utilization rate of the light emitted by the first light-emitting sub-unit 211 and the second light-emitting sub-unit 212.

[0068] Please refer to Figures 10 to 12 , Figure 10 which is a schematic structural diagram of a backlight structure including a one-way transmission component provided by an embodiment of the present application. Figure 11This is a schematic diagram of the first sub-light unit emitting light when a backlight structure provided in an embodiment of the present application includes a one-way transmission component. Figure 1 . Figure 12 A schematic diagram of a backlight structure provided in an embodiment of the present application including a one-way transmission component in which both the first sub-light emitting unit and the second sub-light emitting unit emit light Figure 1 .

[0069] In one implementation, the plurality of light emitting sub-units 21 include a first light emitting sub-unit 211 and a second light emitting sub-unit 212 .

[0070] The backlight structure 100 further includes a plurality of one-way transmission components 60, which are disposed on the carrier substrate 10. The number of the one-way transmission components 60 corresponds to the number of the seal 30 and the light emitting unit 20, that is, one one-way transmission component 60 is disposed corresponding to one light emitting unit 20, in other words, one one-way transmission component 60 is disposed in one seal 30. It should be noted that, in this embodiment, one of the two sides of the one-way transmission component 60 can be used to transmit light, and the other side is used to reflect light.

[0071] Furthermore, the present application takes the example of two adjacent light-emitting sub-units 21 including a first light-emitting sub-unit 211 and a second light-emitting sub-unit 212, and the one-way transmission component 60 includes a first one-way transmission component 61 and a second one-way transmission component 62, the first one-way transmission component 61 and the second one-way transmission component 62 are arranged at an angle, and the first one-way transmission component 61 corresponds to the first light-emitting sub-unit 211, and the second one-way transmission component 62 corresponds to the second light-emitting sub-unit 212.

[0072] One side of the first one-way transmission member 61 can be used to transmit light, and the other side is used to reflect light. Specifically, the side of the first one-way transmission member 61 facing the first light-emitting subunit 211 is used to transmit the light emitted by the first light-emitting subunit 211, and the side of the first one-way transmission member 61 away from the first light-emitting subunit 211 is used to reflect the light emitted by the second light-emitting subunit 212. Similarly, one side of the second one-way transmission member 62 can be used to transmit light, and the other side is used to reflect light. Specifically, the side of the second one-way transmission member 62 facing the second light-emitting subunit 212 is used to transmit the light emitted by the second light-emitting subunit 212, and the side of the second one-way transmission member 62 away from the second light-emitting subunit 212 is used to reflect the light emitted by the first light-emitting subunit 211.

[0073] The cooperation between the first one-way transmissive member 61 and the second one-way transmissive member 62 can make the area between the first light-emitting sub-unit 211 and the second light-emitting sub-unit 212 also have visible light, avoiding problems such as shadows caused by less light in the area between the first light-emitting sub-unit 211 and the second light-emitting sub-unit 212, so as to improve the light-emitting effect of the light-emitting structure.

[0074] It should be noted that in this application, only the first light-emitting sub-unit 211, the second light-emitting sub-unit 212, the first one-way transmissive member 61, and the second one-way transmissive member 62 are taken as examples. In this application, when there are more than two light-emitting sub-units 21 in a light-emitting unit 20, the one-way transmissive assembly 60 further includes more than two one-way transmissive members, and each one-way transmissive member is disposed between two adjacent light-emitting sub-units 21.

[0075] Please refer to Figures 13 to 14 , Figure 13 FIG. is a schematic diagram of the first sub-light-emitting unit emitting light when a backlight structure provided by an embodiment of the present application includes a one-way transmissive assembly Figure 2 , Figure 14 FIG. is a schematic diagram of both the first sub-light-emitting unit and the second sub-light-emitting unit emitting light when a backlight structure provided by an embodiment of the present application includes a one-way transmissive assembly Figure 2 .

[0076] In one embodiment, the first one-way transmissive member 61 is arc-shaped, and the first one-way transmissive member 61 protrudes in a direction away from the first light-emitting sub-unit 211. Specifically, the side of the first one-way transmissive member 61 away from the first light-emitting sub-unit 211 is used to reflect the light of the second light-emitting sub-unit 212. The first one-way transmissive member 61 protruding in a direction away from the first light-emitting sub-unit 211 can diffuse the light of the second light-emitting sub-unit 212, so as to avoid too much light in the area between the first light-emitting sub-unit 211 and the second light-emitting sub-unit 212, improve the uniformity of the light emitted by the second light-emitting sub-unit 212, and further improve the uniformity of the light emission of the backlight structure 100.

[0077] The shape of the second one-way transmissive member 62 is arc-shaped, and the second one-way transmissive member 62 bulges in a direction away from the second light-emitting subunit 212. Specifically, one side of the second one-way transmissive member 62 away from the second light-emitting subunit 212 is used to reflect the light of the first light-emitting subunit 211. The second one-way transmissive member 62 bulging in a direction away from the second light-emitting subunit 212 can diffuse the light of the first light-emitting subunit 211, so as to avoid excessive light in the area between the first light-emitting subunit 211 and the second light-emitting subunit 212, improve the uniformity of the light emitted by the first light-emitting subunit 211, and further improve the uniformity of the light emission of the backlight structure 100.

[0078] Please refer to Figures 1 to 16 , Figure 15 which is a schematic structural diagram of a backlight module provided by an embodiment of the present application, Figure 16 and which is a schematic structural diagram of a display device provided by an embodiment of the present application.

[0079] The present application further provides a backlight module 1000. The backlight module 1000 includes a back plate 200, a middle frame 300 and the backlight structure 100. The backlight structure 100 is disposed on the back plate 200, the middle frame 300 surrounds the outer periphery of the back plate 200, and the middle frame 300 is used to dispose a display panel 2000.

[0080] In one embodiment, the backlight module 1000 further includes an optical film layer. The back plate 200 includes a bottom plate and side plates surrounding the bottom plate. The backlight structure 100 is disposed on the bottom plate, the optical film layer is fixed on the side plates, and the optical film layer is disposed on a side of the backlight structure 100 away from the bottom plate. The optical film layer is used to homogenize the visible light emitted by the backlight structure 100, so as to improve the uniformity of the light emitted by the backlight module 1000.

[0081] In the backlight module 1000 provided by the present application, the multiple light-emitting units 20 are arranged in an array on the carrier substrate 10. The light-emitting unit 20 includes at least two adjacent light-emitting sub-units 21. In the light-emitting unit 20, one light-emitting sub-unit 21 is correspondingly connected to one control chip 40, and different light-emitting sub-units 21 in one light-emitting unit 20 are correspondingly connected to different control chips 40. The multiple sealing members 30 are arranged on the carrier substrate 10, and the sealing members 30 are used to cover the light-emitting units 20, and one sealing member 30 is arranged corresponding to one light-emitting unit 20. Integrating at least two light-emitting sub-units 21 into one light-emitting unit 20, the light-emitting area of the light-emitting sub-unit 21 is small, and the halo caused by the light emitted by a single light-emitting sub-unit 21 is small, which can weaken the phenomenon of halo generated when the backlight module 1000 works, thereby improving the visual effect and user experience of the display device 10000. Moreover, the distance between two adjacent light-emitting units 20 is far, and at least two relatively far light-emitting sub-units 21 that can be controlled by one control chip 40 can emit light, which can further reduce the halo phenomenon when the light-emitting part controlled by a single control chip 40 emits light.

[0082] The present application also provides a display device 10000, which includes a display panel 2000 and the backlight module 1000, and the display panel 2000 is arranged on the middle frame 300.

[0083] Optionally, the display device 10000 includes, but is not limited to, display devices 10000 such as computers, mobile phones, and large monitors.

[0084] In the display device 10000 provided by the present application, the plurality of light-emitting units 20 are arranged in an array on the carrier substrate 10. The light-emitting unit 20 includes at least two adjacent light-emitting sub-units 21. In one light-emitting unit 20, one light-emitting sub-unit 21 is correspondingly connected to one control chip 40. In one light-emitting unit 20, different light-emitting sub-units 21 are correspondingly connected to different control chips 40. The plurality of sealing members 30 are arranged on the carrier substrate 10. The sealing member 30 is used to cover the light-emitting unit 20, and one sealing member 30 is arranged corresponding to one light-emitting unit 20. At least two light-emitting sub-units 21 are integrated into one light-emitting unit 20. The light-emitting area of the light-emitting sub-unit 21 is small, and the halo caused by the light emitted by a single light-emitting sub-unit 21 is small, which can weaken the phenomenon of halo generated when the display device 10000 works, thereby improving the visual effect and user experience of the display device 10000. Moreover, the distance between two adjacent light-emitting units 20 is far, and at least two relatively far light-emitting sub-units 21 that can be controlled by one control chip 40 can emit light, which can further reduce the halo phenomenon when the light-emitting part controlled by a single control chip 40 emits light.

[0085] In the present application, the mention of "embodiment" or "implementation manner" means that the specific features, structures or characteristics described in combination with the embodiment may be included in at least one embodiment of the present application. The appearance of the above phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in each embodiment of the present application can be combined arbitrarily without contradiction to form another embodiment that does not depart from the spirit and scope of the technical solution of the present application.

[0086] The above are some implementation manners of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present application.

Claims

1. A backlight structure, characterized in that: include: A carrier substrate; A plurality of light-emitting units, wherein the plurality of light-emitting units are arrayed on the carrier substrate, wherein the light-emitting unit comprises at least two adjacent light-emitting sub-units, wherein one light-emitting sub-unit in the light-emitting unit is connected to one control chip, and different light-emitting sub-units in one light-emitting unit are connected to different control chips; and A plurality of sealing members are disposed on the carrier substrate, the sealing members are used to cover the light emitting units, and one sealing member is disposed corresponding to one light emitting unit.

2. The backlight structure according to claim 1, characterized in that: The backlight structure also includes an isolating member, which is disposed in the sealing member and between two adjacent light-emitting sub-units. The isolating member can be used to block the light emitted by one light-emitting sub-unit from propagating to the light-emitting area of ​​another light-emitting sub-unit.

3. The backlight structure according to claim 2, characterized in that: A reflective layer is provided on a side of the isolation member facing the light-emitting sub-unit, and the reflective layer can be used to reflect the light emitted by the light-emitting sub-unit.

4. The backlight structure according to claim 1, characterized in that: The plurality of light-emitting subunits include a first light-emitting subunit and a second light-emitting subunit; The backlight structure further includes a one-way transmission component, which is disposed on the carrier substrate, and includes a first one-way transmission component and a second one-way transmission component, wherein the first one-way transmission component and the second one-way transmission component are disposed at an angle, and the first one-way transmission component corresponds to the first light-emitting sub-unit, and the second one-way transmission component corresponds to the second light-emitting sub-unit; The side of the first unidirectional transmission member facing the first light-emitting sub-unit is used to transmit the light emitted by the first light-emitting sub-unit, and the side of the first unidirectional transmission member facing away from the first light-emitting sub-unit is used to reflect the light emitted by the second light-emitting sub-unit, the side of the second unidirectional transmission member facing the second light-emitting sub-unit is used to transmit the light emitted by the second light-emitting sub-unit, and the side of the second unidirectional transmission member facing away from the second light-emitting sub-unit is used to reflect the light emitted by the first light-emitting sub-unit.

5. The backlight structure according to claim 4, characterized in that: The first one-way transmission member is arc-shaped and protrudes in a direction away from the first light-emitting subunit; the second one-way transmission member is arc-shaped and protrudes in a direction away from the second light-emitting subunit.

6. The backlight structure according to any one of claims 1 to 5, characterized in that: The interval α between two adjacent light-emitting units satisfies: 10 mm ≤ α ≤ 25 mm.

7. The backlight structure according to any one of claims 1 to 5, characterized in that: The light-emitting unit includes four light-emitting sub-units, and the four light-emitting sub-units are respectively connected to four different control chips; One control chip is correspondingly connected to the light-emitting sub-units in four light-emitting units.

8. A backlight module, characterized in that: It comprises a back plate, a middle frame and the backlight structure according to any one of claims 1 to 7, wherein the backlight structure is arranged on the back plate, the middle frame surrounds the periphery of the back plate, and the middle frame is used to set a display panel.

9. The backlight module according to claim 8, characterized in that: The backlight module also includes an optical film layer, the back panel includes a bottom panel and side panels surrounding the bottom panel, the backlight structure is arranged on the bottom panel, the optical film layer is fixed on the side panels, and the optical film layer is arranged on the side of the backlight structure away from the bottom panel, and the optical film layer is used to uniformize the visible light emitted by the backlight structure.

10. A display device, characterized in that: It comprises a display panel and the backlight module according to any one of claims 8 to 9, wherein the display panel is arranged on the middle frame.

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