TWM634809U - Display device and display apparatus - Google Patents

Abstract

A display device includes: a light source module and a wavelength conversion module. The light source module includes a substrate, a plurality of first light emitting diode elements and a second light emitting diode element. The first light emitting diode elements are used for respectively providing a plurality of first color lights, and the second light emitting diode element is used for providing a second color light. The wavelength conversion module is overlapped and arranged on the light source module, and the wavelength conversion module includes a wavelength conversion element and at least one dichroic filter layer. The wavelength conversion element is adapted to absorb the first color lights emitted by a portion of the first light emitting diode elements and excite a converted light beam, wherein the color of the converted light beam is different from the colors of the first color lights and the second color light.

Description

Display elements and display devices

The present invention relates to a display element and a display device.

Most of the micro-display panels made of micro light-emitting diodes (micro LEDs) are monochrome. In order to achieve full-color projection of red, blue, and green, generally speaking, miniature light-emitting diodes with red, blue, and green colors are required, or the blue light emitted by blue light micro-light-emitting diodes is passed through red quantum Dot material and green quantum dot material do color conversion to produce red light and green light to achieve full-color effect. However, the method of color conversion using red quantum dot materials or green quantum dot materials requires two semiconductor yellow light processes for two different quantum dot materials, and it is difficult to achieve the required precision at the microstructure scale. On the other hand, since red and green quantum dot materials need to be used for color conversion, it is difficult to reduce the production cost.

The "Prior Art" paragraph is only used to help understand the content of the present invention, so the content disclosed in the "Prior Art" paragraph may contain some conventional technologies that do not constitute the knowledge of those with ordinary skill in the art. The content disclosed in the "Prior Art" paragraph does not mean that the content or the problems to be solved by one or more embodiments of the present invention have been understood by those with ordinary knowledge in the technical field before the application of the present invention know or know.

An embodiment of the present invention provides a display element, the display element uses blue and green micro-LEDs as a backplane, and only uses red quantum dot materials to color the blue light emitted by the blue micro-LEDs Conversion, and then realize the miniature full-color screen.

An embodiment of the present invention provides a display device. The display element of the display device uses blue and green miniature light-emitting diodes as a backplane, and only uses red quantum dot materials Blu-ray is used for color conversion to realize a miniature full-color screen.

Other purposes and advantages of the present invention can be further understood from the technical characteristics disclosed in the present invention.

An embodiment of the present invention provides a display element, including: a light source module and a wavelength conversion module; wherein, the light source module includes a substrate, a plurality of first light-emitting diode elements and second light-emitting diodes Body elements; wherein the first light emitting diode elements and the second light emitting diode elements are arranged on a surface of the substrate in an array, and the first light emitting diode elements are used to respectively provide a plurality of first light emitting diode elements A color light, the second light-emitting diode element is used to provide a second color light; and the wavelength conversion module is superimposed on the light source module, and the wavelength conversion module includes: an isolation structure layer, a wavelength conversion element and At least one color separation filter layer; wherein, the isolation structure layer has a first surface facing the light source module and a second surface opposite to the first surface, and a plurality of light passages passing through the first surface and the second surface, and the first light emitting diode elements and the second light emitting diode elements respectively correspond to the light passages; the wavelength conversion element overlaps A part of the first light emitting diode elements is disposed in the first part of the light channels, and the orthographic projection of the first part of the light channels on the surface of the substrate overlaps the first light emitting diodes Orthographic projection of the part of the element on the surface of the substrate, the wavelength conversion element is suitable for absorbing the first color lights emitted by the part of the first light-emitting diode elements and exciting a converted light beam, wherein the The color of the converted light beam is different from the first color light and the second color light; the at least one dichroic filter layer is arranged on one side of the second surface of the isolation structure layer and overlaps the wavelength conversion element, wherein the The converted light beam passes through the at least one color separation filter layer, and the at least one color separation filter layer reflects other color light to the wavelength conversion element.

In an embodiment of the present invention, the first light emitting diode elements are blue micro light emitting diodes, and the first color light is blue light beams.

In an embodiment of the present invention, the second light emitting diode element is a green micro light emitting diode, and the second color light is a green light beam.

In an embodiment of the present invention, the converted light beam is a red light beam.

In an embodiment of the present invention, the wavelengths of the first color lights are less than 500 nm.

In an embodiment of the present invention, the wavelength of the second color light is between 500nm and 600nm.

In an embodiment of the present invention, wherein the converted light beam has a wavelength greater than 600nm.

In an embodiment of the present invention, the material of the isolation structure layer includes a light-absorbing material, a metal material with high reflectivity, or a non-metal material with high reflectivity.

In an embodiment of the present invention, the wavelength converting element is a quantum dot material or a nano-scale phosphor.

In an embodiment of the present invention, it further includes: a light-transmitting glass sheet, located on the second surface of the isolation structure layer, the light-transmitting glass sheet overlaps the light channels, and the at least one dichroic filter layer It is located between the transparent glass sheet and the isolation structure layer.

In an embodiment of the present invention, the display element further includes: a microlens structure layer, the microlens structure layer includes a plurality of microlenses arranged in an array, and the positions of the microlenses respectively correspond to the The light channel is used for converging or collimating the first color light, the second color light and the converted light beam passing through the at least one dichroic filter layer respectively.

In an embodiment of the present invention, the ratio of the number of the part of the first light emitting diode elements, the other part of the first light emitting diode elements to the second light emitting diode element is 2: 1:1.

In an embodiment of the present invention, the orthographic projection of the second part of the light channels on the surface of the substrate overlaps the other part of the first light emitting diode elements and the second light emitting diode element Orthographic projection on the surface of the substrate, and the second part of the light channels is a cavity, or filled with a light-transmitting material.

An embodiment of the present invention provides a display device, including a board and a plurality of display elements arranged in an array on the board; wherein the display elements Each of the components includes: a light source module and a wavelength conversion module; wherein, the light source module includes: a substrate, a plurality of first light-emitting diode elements and second light-emitting diode elements; wherein the first light-emitting diode elements A light-emitting diode element and the second light-emitting diode element are arranged in an array on a surface of the substrate, and the first light-emitting diode elements are used to respectively provide a plurality of first color lights, and the second light-emitting diode element The light-emitting diode element is used to provide the second color light; and the wavelength conversion module is superimposed on the light source module, and the wavelength conversion module includes: an isolation structure layer, a wavelength conversion element and at least one color separation filter layer ; wherein, the isolation structure layer has a first surface facing the light source module and a second surface opposite to the first surface, and a plurality of light channels passing through the first surface and the second surface, and the The first light-emitting diode elements and the second light-emitting diode elements respectively correspond to the light channels; the wavelength conversion element overlaps a part of the first light-emitting diode elements and is arranged on the light channels In the first part, the orthographic projection of the first part of the light channels on the surface of the substrate overlaps the orthographic projection of the part of the first light-emitting diode elements on the surface of the substrate, and the wavelength conversion element is suitable for absorbing the first color lights emitted by the part of the first light-emitting diode elements and exciting a converted light beam, wherein the color of the converted light beam is different from the first color light and the second color light; and The at least one dichroic filter layer is disposed on one side of the second surface of the isolation structure layer and overlaps the wavelength conversion element, wherein the converted light beam passes through the dichroic filter layer, and the dichroic filter layer Reflect other colored light to the wavelength conversion element.

In an embodiment of the present invention, the first light-emitting diode elements are blue micro light-emitting diodes, the first color lights are blue light beams, and the second light-emitting diodes The polar body element is a green micro-light emitting diode, the second color light is a green light beam, and the converted light beam is a red light beam.

In an embodiment of the present invention, the number ratio of the part of the first light emitting diode elements, the other part of the first light emitting diode elements and the second light emitting diode element is 2:1 :1.

In an embodiment of the present invention, the wavelength converting element is a quantum dot material or a nano-scale phosphor.

In an embodiment of the present invention, each of the display elements further includes: a light-transmitting glass sheet located on the second surface of the isolation structure layer, the light-transmitting glass sheet overlapping the light channels, The at least one color separation filter layer is located between the transparent glass sheet and the isolation structure layer.

In an embodiment of the present invention, each of the display elements further includes: a microlens structure layer, the microlens structure layer includes a plurality of microlenses arranged in an array, and the positions of the microlenses respectively correspond to The light channels are used for converging or collimating the first color light, the second color light and the converted light beam passing through the at least one color separation filter layer respectively.

In an embodiment of the present invention, the orthographic projection of the second part of the light channels on the surface of the substrate overlaps the other part of the first light emitting diode elements and the second light emitting diode element On the orthographic projection of the surface of the substrate, the second parts of the light channels are cavities or filled with light-transmitting materials.

Based on the above, in the display element and display device of the present invention, the display element uses blue and green miniature light-emitting diodes as the backplane, and only uses red quantum dots The material converts the color of the blue light emitted by the blue micro light-emitting diodes to realize a miniature full-color screen, which can effectively reduce the process steps, improve the product yield and reduce the production cost.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

10: Display device

100: display components

120:Light source module

122: Substrate

122S1: surface

124, 124a, 124b: first light emitting diode element

126: the second light-emitting diode element

140:Wavelength conversion module

142: Isolation structure layer

142S1: first surface

142S2: second surface

144, 144a, 144b: optical channel

146:Wavelength conversion element

148: Dichroic filter layer

150: translucent glass sheet

152:Micro lens structure layer

154: micro lens

156: Encapsulation material

200: plate

300: light-transmitting substrate

L1: first color light

L2: second color light

L3: Conversion Beam

X, Y, Z: direction

FIG. 1 is a schematic diagram of a display element according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a display device according to an embodiment of the present invention.

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. Accordingly, the directional terms used are for illustration and not for limitation of the invention.

FIG. 1 is a schematic diagram of a display element according to an embodiment of the present invention.

As shown in FIG. 1 , the display element 100 includes: a light source module 120 and a wavelength conversion module 140 .

The light source module 120 includes a substrate 122 , a plurality of first light emitting diode elements 124 and a second light emitting diode element 126 . The first light emitting diode element 124 and The second light emitting diode elements 126 are disposed in an array on the surface 122S1 of the substrate 122 . The first light emitting diode elements 124 are used to provide a plurality of first color lights L1 respectively, and the second light emitting diode elements 126 are used to provide a second color light L2. The light emitting direction of the first light emitting diode element 124 and the second light emitting diode element 126 is the Z direction, that is, the normal direction of the surface 122S1 of the substrate 122 .

In this embodiment, the substrate 122 may include a pixel circuit layer, and the pixel circuit layer is suitable for individually driving the first light-emitting diode elements 124 and the second light-emitting diode elements 126 to emit a plurality of first colors. Light L1 and second color light L2. That is, the respective light intensities of the first color light L1 and the second color light L2 from the first light emitting diode elements 124 and the second light emitting diode elements 126 can be independently controlled to produce a display device The image to be displayed.

In this embodiment, the first light emitting diode element 124 and the second light emitting diode element 126 may be vertical type (vertical type) micro light emitting diode (micro light emitting diode, micro-LED), horizontal type ( lateral type) micro light emitting diodes or flip-chip type micro light emitting diodes, the present invention is not limited thereto.

In this embodiment, the first light emitting diode element 124 is a blue micro light emitting diode, and the first color light L1 is a blue light beam. According to some embodiments, the wavelength of the first color light L1 is less than 500 nm. According to some embodiments, the wavelength of the first color light L1 is 455 nm.

In this embodiment, the second light emitting diode element 126 is a green micro light emitting diode, and the second color light L2 is a green light beam. The wavelength of the second color light L2 is between 500 nm and 600 nm. According to some embodiments, the wavelength of the second color light L2 is 505 nm.

As shown in FIG. 1 , the wavelength conversion module 140 is stacked on the light source module 120 and located in the light emitting direction of the first light emitting diode element 124 and the second light emitting diode element 126 . The wavelength conversion module 140 includes: an isolation structure layer 142 , a wavelength conversion element 146 and at least one dichroic filter layer 148 .

The isolation structure layer 142 has a first surface 142S1 facing the light source module 120 , a second surface 142S2 opposite to the first surface 142S1 , and a plurality of light channels 144 passing through the first surface 142S1 and the second surface 142S2 . The light channels 144 are separately disposed in the isolation structure layer 142 and correspond to the first light emitting diode elements 124 and the second light emitting diode elements 126 . In this embodiment, the light emitting surfaces of the first light emitting diode element 124 and the second light emitting diode element 126 respectively face the light channels 144 .

As shown in FIG. 1 , the optical channels 144 are divided into a first portion 144 a and a second portion 144 b. The positions of the first portions 144 a of the light channels 144 correspond to the first portions 124 a of the first LED elements 124 . The orthographic projection of the first portions 144a of the light channels 144 on the surface 122S1 of the substrate 122 along the Z direction (that is, along the normal direction of the surface 122S1 of the substrate 122 ) overlaps the first portions of the first light emitting diode elements 124 Orthographic projection of 124a on the surface 122S1 of the substrate 122 along the Z direction. Therefore, most of the first color lights L1 emitted by the first parts 124a of the first light emitting diode elements 124 will enter the first parts 144a of the light channels 144 along the Z direction, and enter into the wavelength conversion The element 146 is converted into the converted light beam L3 by the wavelength conversion element 146 .

As shown in FIG. 1, the wavelength conversion element 146 overlaps the first light emitting two The first portion 124a of the polar body element 124 is disposed in the first portion 144a of the light channels 144 . As shown in FIG. 1 , in this embodiment, the first portions 144a of the optical channels 144 are, for example, a part of the optical channels in the optical channels 144, and the first portions 124a of the first light-emitting diode elements 124 are, for example, A part of the first light emitting diode elements in the first light emitting diode elements 124, and each light channel of the first part 114a of the light channels 144 corresponds to two first light emitting diode elements 124a, and in In some other embodiments, each light channel of the first portion 144a of the light channels 144 may correspond to a first light-emitting diode element, and the present disclosure is not limited thereto.

According to some embodiments, the material of the wavelength converting element 146 is, for example, quantum dot material or nanophosphor. The wavelength conversion element 146 is suitable for absorbing the first color light L1 emitted by the first part 124a of the first light-emitting diode element 124 and exciting a converted light beam L3, wherein the color of the converted light beam L3 is different from the first color light L1 and Second color light L2. In this embodiment, the converted light beam L3 is a red light beam. The converted light beam L3 has a wavelength greater than 600 nm. According to some embodiments, the converted light beam L3 has a wavelength of 625 nm.

As shown in FIG. 1 , the positions of the second portions 144 b of the light channels 144 correspond to the second portions 124 b of the first LED elements 124 and the second LED elements 126 . As shown in FIG. 1 , in this embodiment, the second parts 144b of the light channels 144 are, for example, another part of the light channels in the light channels 144, and the second parts of the first light-emitting diode elements 124 124b is, for example, another part of the first light emitting diode elements in the first light emitting diode elements 124 . Each light channel of the second part 144b of the light channels 144 corresponds to a first light emitting diode element 124b and a second LED element 126, but the present disclosure is not limited thereto. The orthographic projection of the second portions 144b of the light channels 144 on the surface 122S1 of the substrate 122 along the Z direction overlaps the orthographic projection of the second portions 124b of the first light emitting diode elements 124 on the surface 122S1 of the substrate 122 along the Z direction. The projection is an orthographic projection of the second light emitting diode element 126 on the surface 122S1 of the substrate 122 along the Z direction. Therefore, the first color light L1 emitted by the other part 124b of the first light emitting diode elements 124 and the second color light L2 emitted by the second light emitting diode element 126 will enter these light emitting diode elements along the Z direction. The second portion 144b of the light channel 144 .

In this embodiment, the second portions 144b of the light channels 144 are cavities penetrating through the isolation structure layer 142 or filled with light-transmitting materials. That is to say, no wavelength conversion element 146 is disposed above the second portion 144 b of the optical channels 144 . According to some embodiments, the light-transmitting material filled in the second part 144b of the light channels 144 is, for example, a photoresist material or an optical glue that allows the first color light L1 and the second color light L2 to pass directly through, but not This is the limit.

In order to make the intensity of the red light, blue light, and green light emitted by the display element 100 equal, the first parts 124a of the first light-emitting diode elements 124 (used to emit the blue first light beam L1 that excites the wavelength conversion element 146) , the second part 124b of the first light emitting diode elements 124 (for emitting blue first color light L1) and the second light emitting diode element 126 (for emitting green second color light L2) The quantity ratio is 2:1:1.

In this embodiment, the material of the isolation structure layer 142 may include light-absorbing materials, metal materials with high reflectivity, or non-metal materials with high reflectivity, such as black Colored resin, white resin, or other suitable light-absorbing or reflective materials, but not limited thereto. In some embodiments, when the first color light L1 emitted by the first light-emitting diode elements 124 , the second color light L2 emitted by the second light-emitting diode elements 126 and the light source absorbed by the wavelength conversion element 146 The optical path of the converted light beam L3 excited by the first color light L1 emitted by the first part 124a of the first light emitting diode elements 124 is separated from the normal direction of the first surface 142S1 of the isolation structure layer 142 (ie, the Z direction ) has a larger included angle, the first colored light L1, the second colored light L2 and the converted light beam L3 are easily absorbed or reflected by the isolation structure layer 142 . Accordingly, the light concentration of each light channel 144 can be effectively improved, thereby improving display quality (such as image definition).

As shown in FIG. 1 , at least one dichroic filter layer 148 is disposed on one side of the second surface 142S2 of the isolation structure layer 142 and overlaps the wavelength conversion element 146, that is, at least one dichroic filter layer 148 only corresponds to wavelength conversion. Element 146. In this embodiment, the quantity of at least one dichroic filter layer 148 is 1 layer. According to some embodiments, the dichroic filter layer 148 is a metal film with a thickness of less than 5 μm, preferably less than 3 μm, and is formed on the transparent glass 150 by coating. In this embodiment, the dichroic filter layer 148 has an obvious reflective effect on light beams with wavelengths less than 500 nm. That is to say, the transmittance of the dichroic filter layer 148 for the first color light L1 with a wavelength of less than 500 nm is less than 50%. On the other hand, the transmittance of the dichroic filter layer 148 for the red light, that is, the converted light beam L3 is greater than 90%. Therefore, the first color light L1 emitted by the first part 124a of the first LED elements 124 passes through the wavelength conversion element 146 in the light channel 144a to generate a converted light beam L3, and the converted light beam L3 can pass through Dichroic filter layer 148 . A portion of the first color light L1 that cannot be effectively absorbed by the wavelength conversion element 146 is reflected back to the wavelength conversion element 146 by the dichroic filter layer 148 . Therefore, with the dichroic filter layer 148 , the red light component in the output converted light beam L3 can be increased, and the blue light component in the converted light beam L3 can be reduced, so that the outgoing converted light beam L3 has better color purity.

In addition, the dichroic filter layer 148 has a plurality of openings 148 a corresponding to the second portion 144 b overlapping the light channel 144 , and the openings 148 a can define a light-transmitting area of the dichroic filter layer 148 . That is to say, no dichroic filter layer 148 is disposed above the second portion 144 b of the light channel 144 . Therefore, the first color lights L1 emitted by the second parts 124b of the first light emitting diode elements 124 and the second color light L2 emitted by the second light emitting diode elements 126 pass through the light Behind the second portion 144b of the channel 144 , it can directly pass through the openings 148a without being reflected by the dichroic filter layer 148 . That is to say, the first color light L1 for displaying blue and the second color light L2 for displaying green of the display element 100 can directly pass through the opening 148 a without being reflected by the color separation filter layer 148 .

As shown in FIG. 1 , the display element 100 further includes a transparent glass sheet 150 . The transparent glass sheet 150 is located above the wavelength conversion module 140 , and the transparent glass sheet 150 is, for example, disposed on the second surface 142S2 of the isolation structure layer 142 and overlaps the optical channels 144 . The dichroic filter layer 148 of the wavelength conversion module 140 is located between the transparent glass sheet 150 and the isolation structure layer 142 .

As shown in FIG. 1 , the display element 100 further includes a microlens structure layer 152 . The microlens structure layer 152 is located on the transparent glass sheet 150 and overlaps the light channel 144 . microtransparent The mirror structure layer 152 includes a plurality of microlenses 154 arranged in an array, and the positions of the microlenses 154 respectively correspond to the light channels 144, and are used to collect or collimate the first color light L1, the second color light L2 and the transmitted light. The converted light beam L3 passing through at least one dichroic filter layer 148 .

According to some embodiments, the cross-sectional profile of the microlens 154 of the microlens structure layer 152 on a plane (ie, XZ plane) perpendicular to the extending direction (eg, Y direction) may be semi-elliptical or semicircular. That is, the microlens 154 in this embodiment may be a lenticular lens strip extending along the Y direction, but the present invention is not limited thereto. In other embodiments, the cross-sectional profile of the microlens 154 on a plane perpendicular to the extension direction can also be adjusted according to the actual light type requirements (or light splitting effect), for example, the cross-sectional profile of the microlens 154 can be wedge-shaped, (tilted) triangular lens strip, but the present invention is not limited thereto. In other embodiments, the cross-sectional profile of the microlens 154 can also be adjusted according to actual light type requirements (or light splitting effect). In other embodiments, the orthographic projection of each microlens 154 of the microlens structure layer 152 on the surface 122S1 of the substrate 122 along the Z direction is circular, and the microlenses 154 correspond to the light channels 144 in a one-to-one manner. .

As shown in FIG. 1 , the display element 100 further includes an encapsulation material 156 located on the transparent glass sheet 150 to cover the microlens structure layer 152 . According to some embodiments, the material of the encapsulation material 156 may be an optical adhesive material that allows the first color light L1 , the second color light L2 , and the converted light beam L3 to pass through, but is not limited thereto.

FIG. 2 is a schematic diagram of a display device according to an embodiment of the present invention.

The display device 10 includes a plurality of display elements 100, a panel 200 and a light-transmitting Substrate 300. A plurality of display elements 100 are arranged in an array on the board 200 and are suitable for providing illumination light beams L. As shown in FIG. The illumination light beam L includes a first color light L1 , a second color light L2 and a converted light beam L3 emitted by each display element 100 . The light-transmitting substrate 300 is located on the transmission path of the illumination beams L provided by the plurality of display elements 100 , and can display images by being irradiated by the illumination beams L. Referring to FIG.

To sum up, in the display element of the present invention, the display element uses blue and green micro-light-emitting diodes as light sources, and only uses red quantum dot materials to perform color conversion on the blue light emitted by the blue micro-light-emitting diodes. , and then realize the miniature full-color screen, which can effectively reduce the process steps, improve the product yield and reduce the production cost. The display device 10 using the display element 100 can also present images with good image quality and brightness through the illumination light beam L provided by the display element 100 .

But the above-mentioned person is only the preferred embodiment of the present invention, when can not limit the scope of the present invention implementation with this, promptly generally according to the simple equivalent change and the modification that the present application patent scope and new description content are done, All still belong to the scope that this new patent covers. In addition, any embodiment or patent scope of the present invention does not need to achieve all the purposes, advantages or features disclosed in the present invention. In addition, the abstract part and the title are only used to assist the search of patent documents, and are not used to limit the scope of rights of this model. In addition, terms such as "first" and "second" mentioned in this specification or the scope of the patent application are only used to name elements (elements) or to distinguish different embodiments or ranges, and are not used to limit the number of elements. upper or lower limit.

100: display components

120:Light source module

122: Substrate

122S1: surface

124, 124a, 124b: first light emitting diode element

126: the second light-emitting diode element

140:Wavelength conversion module

142: Isolation structure layer

142S1: first surface

142S2: second surface

144, 144a, 144b: optical channel

146:Wavelength conversion element

148: Dichroic filter layer

150: translucent glass sheet

152:Micro lens structure layer

154: micro lens

156: Encapsulation material

L1: first color light

L2: second color light

L3: Conversion Beam

X, Y, Z: directions

Claims (20)

A display element, including: a light source module and a wavelength conversion module; wherein, the light source module includes a substrate, a plurality of first light-emitting diode elements and second light-emitting diode elements; wherein the first The light-emitting diode elements and the second light-emitting diode elements are arranged on a surface of the substrate in an array, the first light-emitting diode elements are used to respectively provide a plurality of first color lights, and the second light-emitting diode elements The diode element is used to provide the second color light; and the wavelength conversion module is superimposed on the light source module, and the wavelength conversion module includes: an isolation structure layer, a wavelength conversion element and at least one color separation filter layer; Wherein, the isolation structure layer has a first surface facing the light source module and a second surface opposite to the first surface, and a plurality of light channels passing through the first surface and the second surface, and these The first light emitting diode element and the second light emitting diode element respectively correspond to the optical channels; the wavelength conversion element overlaps a part of the first light emitting diode elements and is arranged on the first light channel of the optical channels. In a part, the orthographic projection of the first part of the light channels on the surface of the substrate overlaps the orthographic projection of the part of the first light-emitting diode elements on the surface of the substrate, and the wavelength conversion element is suitable for absorbing the first color lights emitted by the part of the first light emitting diode elements and exciting a converted light beam, wherein the color of the converted light beam is different from the first color lights and the second color light; the at least A dichroic filter layer is disposed on one side of the second surface of the isolation structure layer and overlapped with the wavelength converting element, wherein the converted light beam passes through the at least one dichroic filter layer, and the at least one color separation filter layer reflects other color light to the wavelength conversion element. The display element according to claim 1, wherein the first light-emitting diode elements are blue micro-light-emitting diodes, and the first color lights are blue light beams. The display element according to claim 1, wherein the second light-emitting diode element is a green micro-light-emitting diode, and the second color light is a green light beam. The display element as claimed in claim 1, wherein the converted light beam is a red light beam. The display element as claimed in claim 1, wherein the wavelengths of the first color lights are less than 500 nm. The display element as claimed in claim 1, wherein the wavelength of the second color light is between 500nm and 600nm. The display element as claimed in claim 1, wherein the converted light beam has a wavelength greater than 600 nm. The display element according to claim 1, wherein the material of the isolation structure layer includes a light-absorbing material, a metal material with high reflectivity, or a non-metal material with high reflectivity. The display element according to claim 1, wherein the wavelength conversion element is a quantum dot material or a nano-scale phosphor. The display element according to claim 1, further comprising: a light-transmitting glass sheet located on the second surface of the isolation structure layer, the light-transmitting glass sheet overlapping the light channels, and the at least one color separation filter A layer is located between the light-transmissive glass sheet and the isolation structure layer. The display element as described in claim 10 further includes: a microlens structure layer, the microlens structure layer includes a plurality of microlenses arranged in an array, and the positions of the microlenses correspond to the light channels respectively, for respectively converging or collimating the first color light, the second color light and the converted light beam passing through the at least one color separation filter layer. The display element according to claim 1, wherein the ratio of the number of the part of the first light emitting diode elements, the other part of the first light emitting diode elements to the second light emitting diode element is 2 :1:1. The display element according to claim 1, wherein the orthographic projection of the second part of the light channels on the surface of the substrate overlaps the other part of the first light emitting diode elements and the second light emitting diode The orthographic projection of the element on the surface of the substrate, and the second parts of the light channels are cavities or filled with light-transmitting materials. A display device comprising a board and a plurality of display elements arranged in an array on the board; wherein each of the display elements includes: a light source module and a wavelength conversion module; wherein the light source module The set includes: a substrate, a plurality of first light-emitting diode elements and second light-emitting diode elements; wherein the first light-emitting diode elements and the second light-emitting diode elements are arranged on the substrate in an array On one surface of the above, the first light-emitting diode elements are used to respectively provide a plurality of first color lights, and the second light-emitting diode elements are used to provide second color lights; and the wavelength conversion module is overlapped and arranged on the On the light source module, the wavelength conversion module includes: an isolation structure layer, a wavelength conversion element, and at least one color separation filter layer; wherein, The isolation structure layer has a first surface facing the light source module and a second surface opposite to the first surface, and a plurality of light channels passing through the first surface and the second surface, and the first surfaces The light-emitting diode element and the second light-emitting diode element respectively correspond to the light channels; the wavelength conversion element overlaps a part of the first light-emitting diode elements and is arranged in the first part of the light channels The orthographic projection of the first part of the light channels on the surface of the substrate overlaps the orthographic projection of the part of the first light-emitting diode elements on the surface of the substrate, and the wavelength conversion element is suitable for absorbing the The first color lights emitted by the part of the first light-emitting diode elements and excite a converted light beam, wherein the color of the converted light beam is different from the first color lights and the second color light; and the at least one The dichroic filter layer is disposed on one side of the second surface of the isolation structure layer and overlaps the wavelength conversion element, wherein the converted light beam passes through the dichroic filter layer, and the dichroic filter layer reflects other colored light to the wavelength converting element. The display device according to claim 14, wherein the first light-emitting diode elements are blue micro light-emitting diodes, the first color lights are blue light beams, and the second light-emitting diode elements are green light For the miniature light-emitting diode, the second color light is a green light beam, and the converted light beam is a red light beam. The display device according to claim 14, the ratio of the number of the part of the first light emitting diode elements, the other part of the first light emitting diode elements and the second light emitting diode element is 2: 1:1. The display device according to claim 14, wherein the wavelength converting element is a quantum dot material or a nano-scale phosphor. The display device according to claim 14, wherein each of the display elements further comprises: a light-transmitting glass sheet located on the second surface of the isolation structure layer, the light-transmitting glass sheet overlapping the light channels , the at least one dichroic filter layer is located between the transparent glass sheet and the isolation structure layer. The display device according to claim 14, wherein each of the display elements further includes: a microlens structure layer, the microlens structure layer includes a plurality of microlenses arranged in an array, and the positions of the microlenses respectively correspond to The light channels are used for converging or collimating the first color light, the second color light and the converted light beam passing through the at least one color separation filter layer respectively. The display device as claimed in claim 14, wherein the orthographic projection of the second part of the light channels on the surface of the substrate overlaps with the other part of the first light emitting diode elements and the second light emitting diode The orthographic projection of the element on the surface of the substrate, and the second parts of the light channels are cavities or filled with light-transmitting materials.

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