CN213545000U - Backlight module, display module and display device - Google Patents

Abstract

One or more embodiments of the specification disclose a backlight module, a display module and a display device. The backlight module comprises a substrate, a light-emitting component and an optical sealing component, wherein the light-emitting component comprises a light source and a circuit driving board used for installing the light source, the light-emitting component and the optical sealing component are arranged on the substrate, the optical sealing component is used for packaging the light-emitting component, the optical sealing component comprises a light conversion piece, the light conversion piece is arranged on the periphery of a light-emitting surface of the light-emitting component, and at least blue light emitted from the light source to the light conversion piece is converted into white light by the light conversion piece, so that the light mixing uniformity of the backlight module can be improved, and the phenomenon that the edge part of the backlight module is bluish is improved.

Description

Backlight module, display module and display device

Technical Field

This document relates to shows technical field, especially relates to a backlight unit, display module assembly and display device.

Background

The conventional display mainly uses a backlight module to provide a backlight source for the display panel. Backlight unit can divide into straight following formula and side income formula according to incident mode, and straight following formula backlight unit directly sets up in display panel's rear, and along with flat panel display tends to frivolous development, straight following formula backlight unit's mixed light distance shortens thereupon, and mixed light distance shortens and can make the effect of mixed light receive the influence, and the most audio-visual performance is after lighting up the display that uses the straight following formula backlight unit that mixed light distance is shorter, and the luminance at display edge can be obviously higher, produces the problem of the bright frame in edge.

The direct type backlight module generally uses blue LED + quantum dot film technology, and is suitable for liquid crystal displays with wide frames such as TV frames and the like in medium and large sizes, because when the times of light reflection or refraction occurring at the edge of the backlight module are less, light mixing imbalance occurs, and the edge part of the backlight module often has different light chromatic aberration from other areas, the wider frame can hide the area of the edge part of the backlight module where the light chromatic aberration occurs. However, for small-sized products with narrow frames, the blue-emitting region at the edge of the backlight module cannot be completely hidden by adopting the blue LED + quantum dot film technology, and the problem of uneven light mixing is faced. Therefore, it is an urgent technical problem to avoid uneven light mixing at the edge of the backlight module and to improve the blue phenomenon at the edge of the backlight module.

Disclosure of Invention

One or more embodiments of the present disclosure provide a backlight module, a display module and a display device, which can improve the uniformity of light mixing of the backlight module and improve the phenomenon of blue emission at the edge of the backlight module.

To solve the above technical problem, one or more embodiments of the present specification are implemented as follows:

in a first aspect, a backlight module is provided, including a substrate, a light emitting module and an optical sealing module, where the light emitting module includes a light source and a circuit driving board for mounting the light source, the light emitting module and the optical sealing module are disposed on the substrate, the optical sealing module is configured to encapsulate the light emitting module, the optical sealing module includes a light conversion member, the light conversion member is disposed at a periphery of a light emitting surface of the light emitting module, and the light conversion member converts at least blue light emitted from the light source to the light conversion member into white light.

In a second aspect, a display module is provided, which comprises a display panel and the backlight module described above.

In a third aspect, a display device is provided, which includes the display module set described above.

As can be seen from the technical solutions provided in one or more embodiments of the foregoing description, the backlight module provided in the present application includes a substrate, and a light emitting module and an optical sealing module respectively disposed on the substrate, where the light emitting module includes a light source and a circuit driving board for mounting the light source, so that after the light source emits light, the light emitting module has a light emitting surface, where the light emitting surface may be a light emitting surface where the light source is located or a light emitting surface where the light source and the circuit driving board are integrally packaged, and the optical sealing module is used for packaging the light emitting module, and includes a light conversion member disposed at a periphery of the light emitting surface of the circuit driving board, and the light conversion member converts at least blue light emitted from the light source to the light conversion member into white light. The light conversion member may be a member of a laminate or other structure herein, but is not limited thereto. The light conversion member is arranged at the periphery of the light emitting surface of the light emitting assembly, and can convert light rays emitted to the light conversion member from the light source, particularly from the edge part in the display area of the backlight module, into white light, so that the phenomenon that the edge of the backlight module emits blue light is improved.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, reference will now be made briefly to the attached drawings, which are needed in the description of one or more embodiments or prior art, and it should be apparent that the drawings in the description below are only some of the embodiments described in the specification, and that other drawings may be obtained by those skilled in the art without inventive exercise.

Fig. 1 is a schematic longitudinal sectional view of a backlight module provided in an embodiment of the present disclosure.

Fig. 2 is a schematic longitudinal sectional view of another backlight module provided in the embodiments of the present disclosure.

Fig. 3 is a top view of a circuit driving board in the backlight module shown in fig. 2.

Fig. 4 is a schematic longitudinal sectional view of another backlight module provided in the embodiments of the present disclosure.

Fig. 5 is an exploded schematic view of another backlight module provided in the embodiments of the present disclosure.

Fig. 6 is a partially enlarged view of a portion B of the backlight module provided in fig. 5.

Fig. 7 is a longitudinal sectional view of the backlight module provided in fig. 5.

100-a light conversion member; 110-iron frame; 120-line driver board; 130-an encapsulation layer; 140-glue frame; 150-a light conversion film; 160-light shading glue; 170-a light source; 180-optical film set.

Detailed Description

In order to make the technical solutions in the present specification better understood, the technical solutions in one or more embodiments of the present specification will be clearly and completely described below with reference to the accompanying drawings in one or more embodiments of the present specification, and it is obvious that the one or more embodiments described are only a part of the embodiments of the present specification, and not all embodiments. All other embodiments that can be derived by a person skilled in the art from one or more of the embodiments described herein without making any inventive step shall fall within the scope of protection of this document.

In the backlight module provided in the embodiments of the present description, the light conversion member for converting the blue light emitted from the light source to the light conversion member into the white light is disposed at the periphery of the light emitting surface of the light emitting assembly, and particularly, the blue light emitted from the edge of the display area of the backlight module to the light conversion member is converted into the white light, so that the light mixing uniformity of the backlight module can be improved, and the phenomenon that the edge of the backlight module is bluish is improved. The backlight module and various parts thereof provided by the embodiments of the present specification will be described in detail below.

Example one

Referring to fig. 1, a backlight module provided for an embodiment of the present disclosure includes a substrate, a light emitting assembly, and an optical sealing assembly, where the light emitting assembly includes a light source and a circuit driving board for mounting the light source, the light emitting assembly and the optical sealing assembly are disposed on the substrate, the optical sealing assembly is used for packaging the light emitting assembly, the optical sealing assembly includes a light conversion member, the light conversion member is disposed at a periphery of a light emitting surface of the circuit driving board, and the light conversion member converts at least blue light emitted from the light source to the light conversion member into white light.

The direct-type backlight module generally uses a blue light emitting diode as a light source, and blue light emitted by the blue light emitting diode excites the quantum dot film to generate white light. However, the number of times of light reflection or refraction occurring at the edge of the backlight module is small, and light mixing imbalance occurs, so that the edge of the backlight module has different light color difference from the surrounding central area at a high frequency.

The circuit driving board is used for installing a light source, the light conversion part is arranged on the periphery of the light emitting surface of the light emitting component, at least blue light emitted to the light conversion part by the light source can be converted into white light, particularly, an area with insufficient conversion of the blue light at the edge part of the outermost light source of the circuit driving board can be fully converted into the white light, the effect of uniform display is achieved, the light mixing uniformity of the backlight module can be improved, and the phenomenon that the edge part of the backlight module is bluing is improved.

Of course, light of other colors emitted by the light source may be converted into other colors, which is not limited herein, as long as the conversion of the light color is achieved. The light conversion member may be a layered structure or a component with other structures, which is not limited herein, and the material of the light conversion member is quantum dots or fluorescent particles, or may be other kinds of materials that can only achieve the light conversion function.

For convenience of description, the light conversion member is referred to as an optical sealing assembly, but the light conversion member may be lifted out separately as a separate component for description. According to the idea of the application, the whole backlight module comprises an optical sealing component and a light-emitting component, wherein the light-emitting component is used for emitting light of the backlight module as the name suggests, and the optical sealing component is arranged to be used for packaging the light-emitting component.

The light conversion element is disposed around a light emitting surface of the light emitting module, the light emitting surface of the light emitting module is a light emitting surface of the light source when the light source is not packaged, the light emitting surface of the package layer when the light source is packaged by the package layer, and fig. 1 shows that the light emitting surface of the package layer is a light emitting surface of the light emitting module when the light source is packaged. The light conversion member disposed around the light emitting assembly can convert light emitted from the light source to the light conversion member, especially, light emitted from the edge of the display area of the backlight module to the light conversion member is converted to white, as shown in fig. 1, light a, thereby improving the phenomenon of blue emission at the edge of the backlight module, the display module and the display device.

Referring to fig. 1, the light conversion member is a shielding member disposed on the encapsulation layer, and surrounds the light emitting surface of the light emitting assembly, specifically, the periphery of the light emitting surface of the encapsulation layer of the light source.

Referring to fig. 2, in some embodiments, in the backlight module provided in the embodiments of the present disclosure, the optical sealing assembly includes a packaging layer, the packaging layer is used for packaging the light source, and the light conversion element is disposed on a light emitting surface of the packaging layer.

Fig. 2 shows an optical seal assembly comprising an encapsulation layer 130, the encapsulation layer 130 being used to encapsulate a light source 170, the light source 170 being an LED lamp, a plurality of which can be seen discretely distributed on the line driver board 120. The circuit driving board and the light source are packaged together by the packaging layer 130, a light emitting surface of the packaging layer 130 serves as a light emitting surface of the light emitting assembly, the light conversion member 100 is arranged on the packaging layer in fig. 2 and is located at the periphery of the light emitting surface of the packaging layer 130, and as can be seen in fig. 2, the light ray a is emitted through the light emitting surface of the backlight module after being converted by the light ray of the light conversion member 100. Therefore, the backlight module provided by the embodiment of the specification solves the problems of uneven edge light mixing and blue light generation of the backlight module.

Referring to fig. 2, in some embodiments, in the backlight module provided in the embodiments of the present disclosure, a projection of the outermost light source on the circuit driving board on the substrate falls into a projection of the light conversion member on the substrate.

As shown in fig. 2, the substrate includes an iron frame 110 for carrying the light emitting assembly and the optical sealing assembly, and a glue frame is disposed at the periphery of the light emitting assembly to ensure optical sealing of the light emitting assembly. The light conversion film 150 and the optical film group 180 are sequentially disposed above the encapsulation layer 130. In fig. 2, the projection of the light conversion member on the substrate, such as the bezel 110, is larger than the projection of the outermost light source on the circuit driving board on the substrate, such as the bezel 110, so that the light conversion member disposed on the periphery of the light emitting surface of the encapsulation layer 130 can convert the light emitted from the light source on the edge of the circuit driving board to the light conversion member 100 into white light and emit the white light, thereby solving the problem that blue light appears on the edge of the backlight module.

The light conversion member may be prepared by coating quantum dots or fluorescent particles, or by attaching a light conversion film layer.

Referring to fig. 3, which is a top view of the circuit driving board 120 in the backlight module shown in fig. 2, the light conversion member 100 is disposed at the periphery of the circuit driving board, and as can be seen from fig. 3, the projection of the outermost light source on the circuit driving board falls into the projection of the light conversion member on the substrate, so as to ensure that the light emitted by the outermost light source onto the light conversion member can be subjected to light conversion, and avoid the phenomenon of blue light at the edge of the backlight module.

Referring to fig. 4, in some embodiments of the backlight module provided in the embodiments of the present disclosure, the light conversion member is further disposed at a side of the encapsulation layer.

As shown in fig. 4, the light conversion element 100 is not only disposed on the light emitting surface of the package layer 130, but also disposed on a side of the package layer 130, where the side is opposite to the light emitting surface of the package layer 130, so that when the outermost light source on the circuit driving board emits light to the side of the package layer 130, the light can be converted into white light and emitted.

Referring to fig. 5 to 7, in some embodiments, in the backlight module provided in the embodiments of the present disclosure, the optical sealing assembly includes a rubber frame, the rubber frame extends from the substrate along a light emitting direction of the light emitting assembly, and the light conversion member is disposed on the rubber frame.

In the backlight module provided in the embodiments of the description shown in fig. 5-7, the optical sealing assembly includes a rubber frame, and the light conversion member is disposed on the rubber frame, and the rubber frame extends from the substrate along the light emitting direction of the light emitting assembly. The bezel, which is a member of the optical sealing assembly, is also disposed at the periphery of the light emitting element and extends from the substrate, such as the bezel 110, along the light emitting direction of the light emitting element. The light conversion member disposed in the rubber frame 140 is disposed at the periphery of the light emitting surface of the light emitting module and extends along the light emitting direction of the light emitting module.

In the backlight module provided in the embodiments of the present description, the light conversion member is disposed on the rubber frame 140 in the optical sealing assembly to improve the light emitting effect at the edge of the light emitting assembly, and ensure the light mixing uniformity at the edge of the light emitting assembly. The light conversion part can be arranged at the part of the rubber frame close to the light-emitting component, the periphery of the light-emitting surface of the self-light-emitting component of the light conversion part extends along the light-emitting direction of the light-emitting component, and when the edge part of the light-emitting component, namely light emitted by the outermost light source on the circuit driving board, irradiates the rubber frame 140, the light conversion part on the rubber frame 140 converts blue light into white light to be emitted out, so that the problem that the blue light appears at the edge part of the backlight module is solved.

Fig. 5 shows that the circuit driving board 120, the light conversion film 150 and the optical film assembly 180 are sequentially stacked, in the backlight module provided in this embodiment of the present disclosure, the light conversion member 100 is modified on the rubber frame 140, and fig. 6 shows a partial enlarged view of a portion B shown in fig. 5, it can be seen that the light conversion member 100 is disposed around the edge of the rubber frame 140, that is, the light conversion member 100 is disposed around the light emitting surface of the light emitting module.

Referring to fig. 7, in some embodiments, in the backlight module provided in the embodiments of the present disclosure, the light conversion member further extends away from the light emitting direction of the light emitting assembly in a reverse direction.

Fig. 7 shows that in the backlight module provided in the embodiments of the present disclosure, the light conversion element 100 is disposed outside the periphery of the light emitting surface of the light emitting device, i.e., the light emitting surface of the encapsulation layer 130, and also extends in a direction opposite to the light emitting direction of the light emitting device, so as to improve the conversion rate of the light conversion element 100 for the received light emitted by the light source.

Referring to fig. 7, in some embodiments, the substrate of the backlight module provided in the embodiments of the present disclosure includes an iron frame 110, a circuit driving board 120 and a rubber frame 140 are disposed on the iron frame 110, and a light conversion member 100 extends from the iron frame 110 along a light emitting direction of the light emitting device.

In the backlight module provided in the embodiments of the present description, the bezel 110 is used as a substrate, the circuit driving board 120, the light conversion film 150, and the optical film group 180 are sequentially disposed on the bezel 110, the rubber frame 140 is disposed on a periphery of the light emitting device, and the light conversion device 100 is close to an edge portion of the display area of the light emitting device.

The light conversion member 100 may be prepared by coating quantum dots/fluorescent particles or pasting a light conversion film layer, and when light on the periphery of the light emitting surface of the light emitting assembly is emitted to the light conversion member 100 on the rubber frame 140, the light conversion member 100 converts blue light into white light and emits the white light, thereby solving the problem that blue light occurs at the edge of the backlight module.

Referring to fig. 7, in some embodiments, in the backlight module provided in the embodiments of the present disclosure, the optical sealing assembly further includes a light shielding adhesive, the light emitting assembly further includes an optical film group, the optical film group is disposed above the circuit driving board, the adhesive frame is used for encapsulating a periphery of the circuit driving board and a periphery of the optical film group, the light shielding adhesive is disposed at a periphery of a light emitting surface of the optical film group 180 and is used for encapsulating a periphery of the light emitting surface of the optical film group 180, and the light conversion member 100 extends from the iron frame to the light shielding adhesive along a light emitting direction of the light emitting assembly.

In fig. 7, the optical sealing assembly further includes a light shielding adhesive 160, and the light emitting assembly further includes an optical film stack, and the adhesive frame 140 is present to encapsulate the periphery of the light emitting assembly and the periphery of the optical film stack. The light shielding adhesive 160 is disposed at the periphery of the light-emitting surface of the optical film set and is used for encapsulating the periphery of the light-emitting surface of the optical film set. The light converter 100 extends from the bezel 110 to the light shielding glue 160 along the light emitting direction of the light emitting device. Therefore, light emitted to the light conversion member 100 at the edge of the display area of the circuit driving board 120 can be converted into white light, the light mixing effect at the edge of the display area of the circuit driving board 120 is improved, and the generation of the blue light phenomenon is prevented.

Through the technical scheme, the backlight module provided by the application comprises a substrate, and a light emitting assembly and an optical sealing assembly which are respectively arranged on the substrate, wherein the light emitting assembly comprises a light source and a circuit driving board used for installing the light source, after the light source emits light, the circuit driving board is provided with a light emitting surface, the light emitting surface can be a light emitting surface where the light source is located and also can be a light emitting surface where the light source and the circuit driving board are integrally packaged, the optical sealing assembly is used for packaging the light emitting assembly, the optical sealing assembly comprises a light conversion part, the light conversion part is arranged on the periphery of the light emitting surface of the light emitting assembly, and the light conversion part converts blue light emitted by the light source to the light conversion. The light conversion member may be a member of a laminate or other structure herein, but is not limited thereto. The light conversion member is arranged at the periphery of the light emitting surface of the light emitting assembly, and can convert light rays emitted to the light conversion member from the light source, particularly from the edge part in the display area of the backlight module, into white light, so that the phenomenon that the edge of the backlight module emits blue light is improved.

Example two

The display module provided for the embodiment of the present specification includes a display panel and the backlight module described above. The embodiment of the specification provides a backlight module, which comprises a substrate, a light emitting assembly and an optical sealing assembly, wherein the light emitting assembly comprises a light source and a circuit driving board for mounting the light source, the light emitting assembly and the optical sealing assembly are arranged on the substrate, the optical sealing assembly is used for packaging the light emitting assembly, the optical sealing assembly comprises a light conversion part, the light conversion part is arranged on the periphery of a light emitting surface of the light emitting assembly, and the light conversion part at least converts blue light emitted from the light source to the light conversion part into white light.

The direct-type backlight module generally uses a blue light emitting diode as a light source, and blue light emitted by the blue light emitting diode excites the quantum dot film to generate white light. However, the number of times of light reflection or refraction occurring at the edge of the backlight module is small, and light mixing imbalance occurs, so that the edge of the backlight module has different light color difference from the surrounding central area at a high frequency.

The circuit driving board is used for installing a light source, the light conversion part is arranged on the periphery of the light emitting surface of the light emitting assembly, so that at least blue light emitted to the light conversion part by the light source can be converted into white light, particularly, an area with insufficient conversion of the blue light at the edge part of the outermost light source can be fully converted into the white light, and the effect of uniform display is achieved. The light mixing uniformity of the backlight module can be improved, and the phenomenon that the edge part of the backlight module is bluish is improved.

Of course, light of other colors emitted by the light source may be converted into other colors, which is not limited herein, as long as the conversion of the light color is achieved. The light conversion member may be a layered structure or a component with other structures, which is not limited herein, and the material of the light conversion member is quantum dots or fluorescent particles, or may be other kinds of materials that can only achieve the light conversion function.

For convenience of description, the light conversion member is referred to as an optical sealing assembly, but the light conversion member may be lifted out separately as a separate component for description. According to the thinking of this application, whole backlight unit includes optics seal assembly and light emitting component, and as the name suggests, is used for backlight unit to give out light with light emitting component, and optics seal assembly sets up the periphery at light emitting component for encapsulate light emitting component.

The light conversion element is disposed around a light emitting surface of the light emitting module, the light emitting surface of the light emitting module is a light emitting surface of the light source when the light source is not packaged, the light emitting surface of the package layer when the light source is packaged by the package layer, and fig. 1 shows that the light emitting surface of the package layer is a light emitting surface of the light emitting module when the light source is packaged. The light conversion member disposed around the light emitting surface of the light emitting assembly can convert light emitted from the light source to the light conversion member, especially, light emitted from the edge of the display area of the backlight module to the light conversion member is converted to white, as shown in fig. 1, light a is emitted from the edge of the display area of the backlight module, thereby improving the phenomenon of blue light emission at the edge of the backlight module, the display module and the display device.

Referring to fig. 1, the light conversion member is a shielding member disposed on the encapsulation layer, and surrounds the light emitting surface of the light emitting assembly, which is exactly the periphery of the light emitting surface of the encapsulation layer of the light source.

Through the technical scheme, the backlight module provided by the application comprises a substrate, and a light emitting assembly and an optical sealing assembly which are respectively arranged on the substrate, wherein the light emitting assembly comprises a light source and a circuit driving board used for installing the light source, after the light source emits light, the light emitting assembly is provided with a light emitting surface, the light emitting surface can be a light emitting surface where the light source is located, and also can be a light emitting surface of a packaging layer after the light source and the circuit driving board are integrally packaged, the optical sealing assembly is used for packaging the light emitting assembly, the optical sealing assembly comprises a light conversion part, the light conversion part is arranged on the periphery of the light emitting surface of the light emitting assembly, and the light conversion part converts blue light emitted by the light source to the light. The light conversion member may be a member of a laminate or other structure herein, but is not limited thereto. The light conversion member is arranged at the periphery of the light emitting surface of the light emitting assembly, and can convert light rays emitted to the light conversion member from the light source, particularly from the edge part in the display area of the backlight module, into white light, so that the phenomenon that the edge of the backlight module emits blue light is improved.

EXAMPLE III

The display device provided by the embodiment of the specification comprises the display module. The display module provided by the embodiment of the specification comprises a display panel and the backlight module. The backlight module comprises a substrate, a light emitting assembly and an optical sealing assembly, wherein the light emitting assembly comprises a light source and a circuit driving board for mounting the light source, the light emitting assembly and the optical sealing assembly are arranged on the substrate, the optical sealing assembly is used for packaging the light emitting assembly, the optical sealing assembly comprises a light conversion part, the light conversion part is arranged on the periphery of a light emitting surface of the light emitting assembly, and the light conversion part at least converts blue light emitted from the light source to the light conversion part into white light.

The direct-type backlight module generally uses a blue light emitting diode as a light source, and blue light emitted by the blue light emitting diode excites the quantum dot film to generate white light. However, the number of times of light reflection or refraction occurring at the edge of the backlight module is small, and light mixing imbalance occurs, so that the edge of the backlight module has different light color difference from the surrounding central area at a high frequency.

The circuit driving board is used for installing a light source, the light conversion part is arranged on the periphery of the light emitting surface of the light emitting assembly, so that at least blue light emitted to the light conversion part by the light source can be converted into white light, particularly, an area with insufficient conversion of the blue light at the edge part of the outermost light source can be fully converted into the white light, and the effect of uniform display is achieved. The light mixing uniformity of the backlight module can be improved, and the phenomenon that the edge part of the backlight module is bluish is improved.

Of course, light of other colors emitted by the light source may be converted into other colors, which is not limited herein, as long as the conversion of the light color is achieved. The light conversion member may be a layered structure or a component with other structures, which is not limited herein, and the material of the light conversion member is quantum dots or fluorescent particles, or may be other kinds of materials that can only achieve the light conversion function.

For convenience of description, the light conversion member is referred to as an optical sealing assembly, but the light conversion member may be lifted out separately as a separate component for description. According to the thinking of this application, whole backlight unit includes optics seal assembly and light emitting component, and as the name suggests, is used for backlight unit to give out light with light emitting component, and optics seal assembly sets up the periphery at light emitting component for encapsulate light emitting component.

The light conversion element is disposed around a light emitting surface of the light emitting module, the light emitting surface of the light emitting module is a light emitting surface of the light source when the light source is not packaged, the light emitting surface of the package layer when the light source is packaged by the package layer, and fig. 1 shows that the light emitting surface of the package layer is a light emitting surface of the light emitting module when the light source is packaged. The light conversion member disposed around the light emitting assembly can convert light emitted from the light source to the light conversion member, especially, light emitted from the edge of the display area of the backlight module to the light conversion member is converted to white, as shown in fig. 1, which improves the phenomenon that the edge of the backlight module, the display module and the display device is bluish.

Referring to fig. 1, the light conversion member is a shielding member disposed on the encapsulation layer, and surrounds the light emitting surface of the light emitting assembly, which is exactly the periphery of the light emitting surface of the encapsulation layer of the light source.

Through the technical scheme, the backlight module provided by the application comprises a substrate, and a light emitting assembly and an optical sealing assembly which are respectively arranged on the substrate, wherein the light emitting assembly comprises a light source and a circuit driving board used for installing the light source, after the light source emits light, the light emitting assembly is provided with a light emitting surface, the light emitting surface can be a light emitting surface where the light source is located, and also can be a light emitting surface where the light source and the circuit driving board are integrally packaged, the optical sealing assembly is used for packaging the light emitting assembly, the optical sealing assembly comprises a light conversion part, the light conversion part is arranged on the periphery of the light emitting surface of the light emitting assembly, and the light conversion part converts blue light emitted by the light source to the light conversion. The light conversion member may be a member of a laminate or other structure herein, but is not limited thereto. The light conversion member is arranged at the periphery of the light emitting surface of the light emitting assembly, and can convert light rays emitted to the light conversion member from the light source, particularly from the edge part in the display area of the backlight module, into white light, so that the phenomenon that the edge of the backlight module emits blue light is improved.

In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present specification shall be included in the protection scope of the present specification.

The system, apparatus, module or unit illustrated in one or more of the above embodiments may be implemented by a computer chip or an entity, or by an article of manufacture with a certain functionality. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Claims (10)

1. A backlight module is characterized by comprising a substrate, a light emitting assembly and an optical sealing assembly, wherein the light emitting assembly comprises a light source and a circuit driving board for mounting the light source, the light emitting assembly and the optical sealing assembly are arranged on the substrate, the optical sealing assembly is used for packaging the light emitting assembly, the optical sealing assembly comprises a light conversion member, the light conversion member is arranged on the periphery of a light emitting surface of the light emitting assembly, and the light conversion member at least converts blue light emitted from the light source to the light conversion member into white light.

2. The backlight module as claimed in claim 1, wherein the optical sealing assembly comprises an encapsulation layer for encapsulating the light source, and the light converter is disposed on a light emitting surface of the encapsulation layer.

3. The backlight module according to claim 2, wherein the projection of the outermost light source on the circuit driving board on the substrate falls within the projection of the light conversion member on the substrate.

4. The backlight module as claimed in claim 2, wherein the light converter is further disposed at a side of the encapsulation layer.

5. The backlight module according to claim 1, wherein the optical sealing member comprises a rubber frame, the rubber frame extends from the substrate along a light emitting direction of the light emitting element, and the light conversion member is disposed on the rubber frame.

6. A backlight module according to claim 5, wherein the light conversion member further extends oppositely away from the light emitting direction of the light emitting assembly.

7. The backlight module according to claim 6, wherein the substrate comprises an iron frame, the circuit driving board and the adhesive frame are disposed on the iron frame, and the light converter extends from the iron frame along the light emitting direction of the light emitting device.

8. The backlight module according to claim 7, wherein the optical sealing assembly further comprises a light shielding adhesive, the backlight module further comprises an optical film group, the optical film group is disposed above the light emitting assembly, the adhesive frame is used for encapsulating the periphery of the light emitting assembly and the periphery of the optical film group, the light shielding adhesive is disposed on the periphery of the light emitting surface of the optical film group and is used for encapsulating the periphery of the light emitting surface of the optical film group, and the light conversion member extends from the iron frame to the light shielding adhesive along the light emitting direction of the light emitting assembly.

9. A display module comprising a display panel and a backlight module according to any one of claims 1-8.

10. A display device, comprising the display module according to claim 9.

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