CN111915996B - Miniature LED display - Google Patents
Miniature LED display Download PDFInfo
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- CN111915996B CN111915996B CN202010795497.6A CN202010795497A CN111915996B CN 111915996 B CN111915996 B CN 111915996B CN 202010795497 A CN202010795497 A CN 202010795497A CN 111915996 B CN111915996 B CN 111915996B
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- 239000000758 substrate Substances 0.000 claims description 26
- 230000003287 optical effect Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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Abstract
The invention provides a micro light-emitting diode display which comprises a shell, a light-transmitting cover plate, a micro light-emitting diode array carrier plate, a circuit board and at least one functional element. The light-transmitting cover plate is arranged on the shell and is provided with a display area, a non-display area and a plurality of first through holes. The plurality of perforations are located within the display area. The micro light-emitting diode array carrier plate is arranged corresponding to the display area and between the light-transmitting cover plate and the shell. The micro light-emitting diode array carrier plate is provided with a plurality of second through holes, and the second through holes are overlapped with the first through holes in the orthographic projection direction. The circuit board is arranged between the micro light-emitting diode array carrier plate and the shell, wherein the circuit board is provided with a functional element configuration area, and the functional element configuration area is overlapped with the display area in the orthographic projection direction. The at least one functional element is configured on the circuit board and is positioned in the functional element configuration area. The at least one functional element is overlapped with the plurality of second through holes in the orthographic projection direction.
Description
Technical Field
The present invention relates to a display, and more particularly, to a micro light emitting diode display.
Background
The display is used as an output interface of an image, and is commonly found In a smart phone, a tablet computer, a notebook computer (laptop computer), a desktop computer (desktop personal computer), an All-In-One computer (All-In-One computer), or other electronic devices.
On the premise that the size of the display is fixed, in order to increase the effective display area, narrow-frame and full-screen designs have become the current mainstream of designs. Generally, the display surface of the display can be generally divided into a display area and a non-display area, and many functional elements such as speakers, cameras, microphones, or sensors are disposed in the non-display area. In the case of a narrow bezel display, the reduction of the bezel is limited to keep the space for the functional elements such as speakers, cameras, microphones, or sensors. In the case of a full-screen display, functional elements such as speakers, cameras, microphones, sensors, etc. are mostly disposed in a fish (notch) space, but the fish space occupies a part of the effective display area, which is not only unsightly but also destroys the integrity of the screen.
Disclosure of Invention
The invention aims at a miniature light-emitting diode display, which not only can meet the design requirements of a narrow frame or a full screen, but also can maintain the integrity of a picture and improve the effective display area.
According to an embodiment of the present invention, a micro led display includes a housing, a transparent cover plate, a micro led array carrier, a circuit board, and at least one functional element. The light-transmitting cover plate is arranged on the shell and is provided with a display area, a non-display area and a plurality of first through holes. The plurality of perforations are located within the display area. The micro light-emitting diode array carrier plate is arranged corresponding to the display area and between the light-transmitting cover plate and the shell. The micro light-emitting diode array carrier plate is provided with a plurality of second through holes, and the second through holes are overlapped with the first through holes in the orthographic projection direction. The circuit board is arranged between the micro light-emitting diode array carrier plate and the shell, wherein the circuit board is provided with a functional element configuration area, and the functional element configuration area is overlapped with the display area in the orthographic projection direction. The at least one functional element is configured on the circuit board and is positioned in the functional element configuration area. The at least one functional element is overlapped with the plurality of second through holes in the orthographic projection direction.
In an embodiment of the invention, the micro led array carrier includes a circuit substrate and a plurality of micro leds. The second through holes penetrate through the circuit substrate. The micro light-emitting diodes are arranged on the circuit substrate and are positioned between the light-transmitting cover plate and the circuit substrate. At least one second perforation is arranged between any two adjacent light-emitting diodes.
In an embodiment of the invention, the micro led array carrier further includes a filling layer. The filling layer covers the micro light-emitting diodes and is arranged between the light-transmitting cover plate and the circuit substrate.
In an embodiment of the present invention, the plurality of second through holes further penetrate through the filling layer.
In an embodiment of the invention, each of the micro light emitting diodes has a thickness of 5 to 10 micrometers and a side length of 3 to 50 micrometers.
In an embodiment of the invention, the at least one functional element overlaps with a portion of the micro light emitting diodes in a front projection direction.
In an embodiment of the invention, the at least one functional element includes a speaker, a camera, a microphone, a solar cell, or a sensor.
In an embodiment of the invention, the non-display area surrounds the display area.
In an embodiment of the invention, the light-transmitting cover plate further has an outer surface and an inner surface opposite to the outer surface, and the inner surface faces the micro light-emitting diode array carrier. The first plurality of perforations extend through the outer surface and the inner surface.
In an embodiment of the present invention, the plurality of first through holes extend in a direction perpendicular to the outer surface.
In an embodiment of the present invention, the plurality of second through holes extend in a direction perpendicular to the outer surface.
In an embodiment of the invention, the aperture of the first through holes on the transparent cover plate is different from the aperture of the second through holes on the circuit substrate.
In view of the above, in the micro led display of the present invention, the functional element is designed under the screen (under display), that is, the functional element is disposed directly below the display region. The design under the screen can not only meet the design requirements of a narrow frame or a full screen, but also maintain the integrity of the picture and improve the effective display area.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1A is a schematic diagram of a micro light emitting diode display according to a first embodiment of the present invention;
FIG. 1B is a schematic cross-sectional view taken along line I-I of FIG. 1A;
FIG. 2A is a schematic partial cross-sectional view of a micro light-emitting diode display according to a second embodiment of the present invention;
FIG. 2B is a schematic partial cross-sectional view of a micro light-emitting diode display according to a third embodiment of the present invention;
FIG. 2C is a schematic partial cross-sectional view of a micro light-emitting diode display according to a fourth embodiment of the present invention;
FIG. 2D is a schematic partial cross-sectional view of a micro light-emitting diode display according to a fifth embodiment of the present invention;
FIG. 2E is a schematic partial cross-sectional view of a micro light-emitting diode display according to a sixth embodiment of the present invention;
FIG. 2F is a schematic partial cross-sectional view of a micro light-emitting diode display according to a seventh embodiment of the present invention;
FIG. 2G is a schematic partial cross-sectional view of a micro light-emitting diode display according to an eighth embodiment of the present invention;
FIG. 3 is a schematic diagram of a notebook computer integrated with a micro LED display according to another embodiment of the present invention.
Description of the reference numerals
100. 100A to 100H: a micro light emitting diode display;
110: a housing;
120: a light-transmitting cover plate;
121: a display area;
122: a non-display area;
123: a first perforation;
124: an outer surface;
125: an inner surface;
130: a micro light emitting diode array carrier plate;
130 a: a circuit substrate;
130 b: a micro light emitting diode;
131: a second perforation;
140: a circuit board;
141: a functional element arrangement region;
150: a functional element;
160: a filling layer;
200: a notebook computer;
210: a host;
d1, D2: a direction of extension;
I-I: a line segment;
PD: the projection direction.
Detailed Description
Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
FIG. 1A is a schematic diagram of a micro light emitting diode display according to a first embodiment of the present invention. FIG. 1B is a schematic cross-sectional view taken along line I-I of FIG. 1A. Referring to fig. 1A and 1B, In the present embodiment, the micro led display 100 may be embodied In a smart phone, a tablet computer, a notebook computer (laptop computer), a desktop computer (desktop personal computer), an All-In-One computer (All-In-One computer) or other electronic devices, and includes a housing 110, a transparent cover 120, a micro led array substrate 130, a circuit board 140 and at least One functional element 150.
The transparent cover 120 is disposed on the housing 110, wherein the micro led array substrate 130 is disposed between the transparent cover 120 and the housing 110, and the circuit board 140 is disposed between the micro led array substrate 130 and the housing 110. That is, the circuit board 140, the micro led array substrate 130 and the transparent cover 120 are sequentially arranged from bottom to top, wherein the housing 110 is used for loading the circuit board 140, the micro led array substrate 130 and the transparent cover 120, and the transparent cover 120 is used for protecting the micro led array substrate 130 and the circuit board 140.
The transparent cover 120 may be a glass cover, and has a good light transmittance for transmitting light emitted from the micro led array substrate 130. Specifically, the transparent cover plate 120 has a display area 121, a non-display area 122, and a plurality of first through holes 123, wherein the micro led array carrier 130 is disposed corresponding to the display area 121, and the plurality of first through holes 123 are located in the display area 121. In addition, the non-display area 122 is provided with an ink layer to shield the internal elements or circuits of the micro led display 100. For example, the non-display area 122 is located at the periphery of the display area 121 and surrounds the display area 121. Alternatively, the non-display area 122 is covered by the housing 110 to be embedded in the housing 110.
The micro led array carrier 130 has a plurality of second through holes 131, and the plurality of second through holes 131 are aligned with the plurality of first through holes 123 in the front projection direction PD. In addition, the front projection direction PD is substantially parallel to the extending direction D1 of the first through hole 123 and the extending direction D2 of the second through hole 131. Further, the transparent cover plate 120 further has an outer surface 124 and an inner surface 125 opposite to the outer surface 124, and the inner surface 125 faces the micro led array carrier 130. The outer surface 124 and the inner surface 125 are parallel to each other, wherein the first through holes 123 penetrate through the outer surface 124 and the inner surface 125, and the extending direction D1 of the first through holes 123 and the extending direction D2 of the second through holes 131 are substantially perpendicular to the outer surface 124.
Further, in the front projection direction PD, each first through hole 123 overlaps and is communicated with one second through hole 131, and the aperture of each first through hole 123 is the same as or similar to the aperture of the corresponding second through hole 131.
Referring to fig. 1A and fig. 1B, in the present embodiment, the circuit board 140 has a functional device disposing area 141, and the functional device disposing area 141 overlaps the display area 121 in the front projection direction PD. In addition, the functional element 150 is disposed on the circuit board 140 and located in the functional element disposition region 141. That is, the functional element 150 is designed under the screen and is disposed directly below the display area 121. The design under the screen can not only meet the design requirements of a narrow frame or a full screen, but also maintain the integrity of the picture and improve the effective display area.
Further, the functional element 150 overlaps the plurality of second through holes 131 in the front projection direction PD, so that audio or light signals can be transmitted from the outside to the inside of the micro led display 100 through the plurality of first through holes 123 and the plurality of second through holes 131 and received by the functional element 150. Or, the audio or optical signal emitted by the functional element 150 is transmitted from the inside of the micro led display 100 to the outside through the plurality of second through holes 131 and the plurality of first through holes 123. For example, the functional element 150 may be a speaker, a camera lens, a microphone, a solar cell, or a sensor, wherein the sensor may be a proximity sensor, an infrared sensor, a light sensor, an optical transceiver, or other suitable user.
Referring to fig. 1B, the micro led array carrier 130 includes a circuit substrate 130a, a plurality of micro leds 130B, and a filling layer 160 covering the plurality of micro leds 130B, wherein the plurality of micro leds 130B are arranged on the circuit substrate 130a, and the plurality of second through holes 131 penetrate the circuit substrate 130a and the filling layer 160. The micro light emitting diodes 130b are disposed between the transparent cover plate 120 and the circuit substrate 130a, wherein the transparent cover plate 120 is attached to the filling layer 160, and the filling layer 160 is disposed between the transparent cover plate 120 and the circuit substrate 130 a.
In detail, a second through hole 131 and a first through hole 123 are disposed between two adjacent micro light emitting diodes 130 b. That is, in the front projection direction PD, the first through holes 123 do not overlap with the micro light emitting diodes 130b, and the second through holes 131 do not overlap with the micro light emitting diodes 130 b. In other embodiments, the circuit substrate 130a has a plurality of arrays of display pixels, and each display pixel is provided with at least three micro light emitting diodes 130b capable of emitting red, blue and green light respectively to display a full-color image. The second through holes 131 are respectively formed between two adjacent display pixels.
On the other hand, the filling layer 160 is, for example, an optical glue or other light-transmitting film layer. The size and thickness of the functional element 150 are larger than the micro light emitting diodes 130b and larger than the arrangement pitch of the micro light emitting diodes 130 b.
For example, each micro led 130b can be an led die with a side less than 100 microns and a thickness less than 10 microns. Further, each micro led 130b has a side length of 3 to 50 microns and a thickness of 5 to 10 microns. The size and thickness of the functional element 150 are larger than each micro light emitting diode 130b and larger than the arrangement pitch of any two adjacent micro light emitting diodes 130 b. Further, the functional element 150 overlaps a portion of the micro light emitting diodes 130b in the front projection direction PD. In addition, the aperture of each first through hole 123 or the aperture of each second through hole 131 is between 1 micron and 20 microns, so as to ensure that the audio or optical signal can be transmitted between the outside and the inside of the micro led display 100, and make the first through holes 123 difficult to be perceived by the naked eye of the user.
Fig. 2A is a schematic partial cross-sectional view of a micro light emitting diode display according to a second embodiment of the present invention. Referring to fig. 2A, compared to the micro led display 100 of fig. 1B, in the micro led display 100A of the present embodiment, the aperture of each second through hole 131 is larger than the aperture of the corresponding first through hole 123.
Fig. 2B is a schematic partial cross-sectional view of a micro light emitting diode display according to a third embodiment of the present invention. Referring to fig. 2B, compared to the micro led display 100 of fig. 1B, in the micro led display 100B of the present embodiment, each of the second through holes 131 can be divided into a lower through hole penetrating the circuit substrate 130a and an upper through hole penetrating the filling layer 160, wherein the aperture of each of the lower through holes is larger than the aperture of the corresponding upper through hole, and the aperture of each of the upper through holes is the same as or similar to the aperture of the corresponding first through hole 123.
Fig. 2C is a schematic partial cross-sectional view of a micro light emitting diode display according to a fourth embodiment of the present invention. Referring to fig. 2C, compared to the micro led display 100 of fig. 1B, in the micro led display 100C of the present embodiment, two functional elements 150 are disposed in the functional element disposition region 141, and the two functional elements 150 may be a speaker, a camera lens, a microphone, a solar cell, a sensor, or a combination thereof. In the front projection direction PD, one of the two functional elements 150 overlaps a portion of the second through holes 131, and the other of the two functional elements 150 overlaps another portion of the second through holes 131. Specifically, the aperture designs of the first through hole 123 and the second through hole 131 of the present embodiment can be adjusted according to the aperture designs of the first through hole 123 and the second through hole 131 of the second embodiment or the aperture designs of the first through hole 123 and the second through hole 131 of the third embodiment.
Fig. 2D is a schematic partial cross-sectional view of a micro light emitting diode display according to a fifth embodiment of the present invention. Referring to fig. 2D, compared to the micro led display 100 of fig. 1B, in the micro led display 100D of the present embodiment, two second through holes 131 and two first through holes 123 are disposed between any two adjacent micro leds 130B. In the front projection direction PD, each first through hole 123 overlaps one second through hole 131, and the aperture of each first through hole 123 is the same as or similar to the aperture of the corresponding second through hole 131.
Fig. 2E is a schematic partial cross-sectional view of a micro light emitting diode display according to a sixth embodiment of the present invention. Referring to fig. 2E, compared to the micro led display 100D of fig. 2D, in the micro led display 100E of the present embodiment, two functional elements 150 are disposed in the functional element disposing region 141, and the two functional elements 150 may be a speaker, a camera lens, a microphone, a solar cell, a sensor, or a combination thereof. In the front projection direction PD, one of the two functional elements 150 overlaps a portion of the second through holes 131, and the other of the two functional elements 150 overlaps another portion of the second through holes 131.
Fig. 2F is a schematic partial cross-sectional view of a micro light emitting diode display according to a seventh embodiment of the present invention. Referring to fig. 2F, compared to the micro led display 100D of fig. 2D, in the micro led display 100F of the present embodiment, only one second through hole 131 is disposed between any two adjacent micro leds 130 b. In the front projection direction PD, two first through holes 123 between two adjacent micro light emitting diodes 130b overlap one second through hole 131, and the aperture of the second through hole 131 is larger than the aperture of the two first through holes 123.
Fig. 2G is a schematic partial cross-sectional view of a micro light emitting diode display according to an eighth embodiment of the present invention. Referring to fig. 2G, compared to the micro led display 100G of fig. 2D, in the micro led display 100G of the present embodiment, each of the second through holes 131 can be divided into a lower through hole penetrating the circuit substrate 130a and an upper through hole penetrating the filling layer 160, and the aperture of each of the upper through holes is the same as or similar to the aperture of the corresponding first through hole 123. On the other hand, the two lower through holes of the two second through holes 131 located between the two adjacent micro light emitting diodes 130b are communicated with each other, so that the aperture of the two lower through holes communicated with each other is larger than the aperture of the two upper through holes and larger than the aperture of the two first through holes 123.
Specifically, the aperture designs of the first through hole 123 and the second through hole 131 of the sixth embodiment can be adjusted according to the aperture designs of the first through hole 123 and the second through hole 131 of the seventh embodiment or the aperture designs of the first through hole 123 and the second through hole 131 of the eighth embodiment.
Fig. 3 is a schematic view illustrating a display integrated into a notebook computer according to another embodiment of the present invention. Referring to fig. 3, in the present embodiment, the display 100H may be a part of the notebook computer 200 and connected to the host 210. For example, the display 100D has three under-screen functional device configuration areas 141, but the number of the functional device configuration areas 141 can be increased or decreased according to the actual design requirement.
On the other hand, the design principle of the display 100H may refer to the design principle of the display 100 of the first embodiment, the design principle of the display 100A of the second embodiment, the design principle of the display 100B of the third embodiment, the design principle of the display 100C of the fourth embodiment, the design principle of the display 100D of the fifth embodiment, the design principle of the display 100E of the sixth embodiment, the design principle of the display 100F of the seventh embodiment, the design principle of the display 100G of the eighth embodiment, or a combination thereof.
In summary, in the micro led display of the present invention, the functional element is designed under the screen, that is, the functional element is disposed right below the display area. The design under the screen can not only meet the design requirements of a narrow frame or a full screen, but also maintain the integrity of the picture and improve the effective display area. Furthermore, the light-transmitting cover plate is provided with a plurality of first through holes corresponding to the functional elements, and the micro light-emitting diode array carrier plate is provided with a plurality of second through holes overlapping the plurality of first through holes in the orthographic projection direction, so that audio or optical signals can be transmitted from the outside to the interior of the micro light-emitting diode display through the plurality of first through holes and the plurality of second through holes and received by the functional elements. Or the audio or light signal emitted by the functional element is transmitted from the inside of the micro light-emitting diode display to the outside through the plurality of second perforations and the plurality of first perforations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A micro light emitting diode display, comprising:
a housing;
the light-transmitting cover plate is arranged on the shell and is provided with a display area, a non-display area and a plurality of first through holes, and the first through holes are positioned in the display area;
a micro light emitting diode array carrier disposed corresponding to the display region and between the transparent cover plate and the housing, wherein the micro light emitting diode array carrier has a plurality of second through holes and a plurality of micro light emitting diodes, and the second through holes overlap the first through holes in an orthogonal projection direction, wherein the first through holes and the second through holes do not overlap the micro light emitting diodes;
the circuit board is arranged between the micro light-emitting diode array carrier plate and the shell, and is provided with a functional element configuration area which is overlapped with the display area in the orthographic projection direction; and
at least one functional element, disposed on the circuit board and located in the functional element disposition region, wherein the at least one functional element overlaps the plurality of second through holes in the orthogonal projection direction.
2. The micro light-emitting diode display defined in claim 1 wherein the micro light-emitting diode array carrier comprises:
the circuit substrate is provided with a plurality of second through holes, the plurality of micro light-emitting diodes are arranged on the circuit substrate and are positioned between the light-transmitting cover plate and the circuit substrate, and at least one second through hole is arranged between any two adjacent micro light-emitting diodes.
3. The micro led display according to claim 2, wherein the micro led array carrier further comprises a filling layer, the filling layer covers the plurality of micro leds, and the filling layer is disposed between the transparent cover plate and the circuit substrate.
4. The micro light-emitting diode display defined in claim 3 wherein the second plurality of perforations further extend through the fill layer.
5. The micro led display according to claim 1, wherein each of the micro leds has a thickness of 5 to 10 microns and a side length of 3 to 50 microns.
6. The micro light-emitting diode display defined in claim 1 wherein the at least one functional element overlaps portions of the plurality of micro light-emitting diodes in a forward projection direction.
7. The micro light-emitting diode display defined in claim 1 wherein the at least one functional element comprises a speaker, a camera, a microphone, a solar cell, or a sensor.
8. The micro light-emitting diode display defined in claim 1 wherein the non-display area surrounds the display area.
9. The micro light-emitting diode display defined in claim 1 wherein the light-transmissive cover further has an outer surface and an inner surface opposite the outer surface, the inner surface facing the micro light-emitting diode array carrier, the first plurality of perforations extending through the outer surface and the inner surface.
10. The micro light-emitting diode display defined in claim 9 wherein the first plurality of perforations extend in a direction perpendicular to the outer surface.
11. The micro light-emitting diode display defined in claim 9 wherein the second plurality of perforations extend in a direction perpendicular to the outer surface.
12. The micro led display according to claim 2, wherein the first plurality of through holes have different apertures in the transparent cover than the second plurality of through holes.
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| CN202010795497.6A CN111915996B (en) | 2020-08-10 | 2020-08-10 | Miniature LED display |
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| CN202010795497.6A CN111915996B (en) | 2020-08-10 | 2020-08-10 | Miniature LED display |
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| CN111915996B true CN111915996B (en) | 2022-03-08 |
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