CN117711278A - Full-color dot matrix digital display screen - Google Patents
Full-color dot matrix digital display screen Download PDFInfo
- Publication number
- CN117711278A CN117711278A CN202211102687.0A CN202211102687A CN117711278A CN 117711278 A CN117711278 A CN 117711278A CN 202211102687 A CN202211102687 A CN 202211102687A CN 117711278 A CN117711278 A CN 117711278A
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- 239000011159 matrix material Substances 0.000 title claims abstract description 26
- 239000011324 bead Substances 0.000 claims abstract description 43
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 229910000679 solder Inorganic materials 0.000 claims description 18
- 239000011810 insulating material Substances 0.000 claims description 11
- 239000010410 layer Substances 0.000 description 103
- 238000010586 diagram Methods 0.000 description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a full-color dot matrix digital display screen, which comprises a digital display screen circuit board and LED lamp beads arranged on the circuit board, wherein the LED lamp beads are full-color LED lamp beads; the full-color dot matrix digital display screen also comprises a full-color driving circuit arranged on the digital display screen circuit board, wherein the full-color driving circuit comprises a full-color driving chip and a peripheral circuit matched with the full-color driving chip, and the digital display screen circuit board comprises a plurality of circuits which are sequentially arranged from top to bottom: a first signal layer printed with wiring of the LED lamp beads; a ground layer printed with a ground wiring; a second signal layer printed with wiring of the full-color driving chip; a third signal layer printed with wiring of a peripheral circuit of the full-color driving chip; a power supply layer printed with power supply wiring; and a fourth signal layer printed with the full-color driving chip and wiring terminal wiring of the peripheral circuit. The invention can emit full-color light and has small size.
Description
Technical Field
The invention relates to a digital display screen, in particular to a full-color dot matrix digital display screen.
Background
The digital display screen is provided with the LED lamp beads on the circuit board to drive the LED lamp beads to emit light, and the display of numbers, icons or specific figures is realized by matching with corresponding hollowed-out holes and display films on the display screen bracket. Compared with a liquid crystal display screen, the digital display screen is low in price and can be well adapted to various severe working environments, so that even if the liquid crystal display screen technology is very mature today, the digital display screen is still widely applied to the fields of toys, household appliances and the like. However, the existing digital display screen has monotonous light-emitting color, and the circuit board of the existing digital display screen provided with the LED lamp beads is generally only used for installing the LED lamp beads and some simple resistor and capacitor devices, and the driving of the LED lamp beads is realized through control circuits on other circuit boards, so that the structure of the digital display screen is not compact enough, and the size is larger.
Disclosure of Invention
The invention provides a full-color dot matrix digital display screen for solving the technical problems of monotonous luminous color and larger size of the digital display screen in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is to design a full-color dot matrix digital display screen, which comprises a digital display screen circuit board and LED lamp beads arranged on the circuit board, wherein the LED lamp beads are full-color LED lamp beads; the full-color dot matrix digital display screen is characterized in that the full-color dot matrix digital display screen further comprises a full-color driving circuit which is arranged on the digital display screen circuit board and electrically connected with the LED lamp beads, the full-color driving circuit comprises a full-color driving chip and a peripheral circuit matched with the full-color driving chip, and the digital display screen circuit board comprises a plurality of LED lamp beads which are sequentially arranged from top to bottom:
a first signal layer printed with wiring of the LED lamp beads;
a ground layer printed with a ground wiring;
a second signal layer printed with wiring of the full-color driving chip;
a third signal layer printed with wiring of a peripheral circuit of the full-color driving chip;
a power supply layer printed with power supply wiring;
and a fourth signal layer printed with the full-color driving chip and wiring terminal wiring of the peripheral circuit.
The digital display screen circuit board also comprises an insulating material layer and a core plate layer, wherein the insulating material layer is arranged between the first signal layer and the grounding layer, between the second signal layer and the third signal layer and between the power supply layer and the fourth signal layer; the core board layer is arranged between the grounding layer and the second signal layer and between the third signal layer and the power supply layer.
The digital display screen circuit board also comprises an upper solder mask layer arranged above the first signal layer and a lower solder mask layer arranged below the fourth signal layer.
The digital display screen circuit board also comprises an upper icon layer arranged above the upper solder mask layer and a lower icon layer arranged below the lower solder mask layer.
The full-color driving chip IS of the type IS31 FL3733.
The digital display screen circuit board is also provided with an interface connected with an external microcontroller.
The thickness of the upper solder mask layer and the lower solder mask layer is 0.01 millimeter, the thicknesses of the first signal layer, the ground layer, the second signal layer, the third signal layer, the power layer and the fourth signal layer are all 0.04 millimeter, the thickness of the insulating material layer is 0.21 millimeter, and the thickness of the core plate layer is 0.36 millimeter.
The LED lamp beads are arranged on the upper surface of the digital display screen circuit board, and the full-color driving chip and the peripheral circuit are arranged on the lower surface of the digital display screen circuit board.
According to the invention, the LED lamp beads are arranged to be full-color LED lamp beads, the digital display screen circuit board is improved, the digital display screen circuit board is arranged to comprise a first signal layer, a ground layer, a second signal layer, a third signal layer, a power layer and a fourth signal layer which are sequentially arranged from top to bottom, so that full-color driving chips and peripheral circuits thereof are all integrated on the digital display screen circuit board, the size of the digital display screen is reduced, the full-color LED lamp beads are driven by the full-color driving chips, and the full-color LED lamp beads can emit light with required colors according to requirements.
Drawings
The invention is described in detail below with reference to examples and figures, wherein:
FIG. 1 is a cross-sectional view of a digital display screen circuit board of a full-color dot matrix digital display screen of the present invention;
FIG. 2 is a circuit diagram of a full-color driving circuit of a full-color dot matrix digital display screen;
FIG. 3 is a front layout view of a digital display circuit board of the full-color dot matrix digital display of the present invention;
FIG. 4 is a back layout of a digital display circuit board of the full-color dot matrix digital display of the present invention;
FIG. 5 is a wiring diagram of a first signal layer of the digital display circuit board of the present invention;
FIG. 6 is a wiring diagram of a ground plane of the digital display circuit board of the present invention;
FIG. 7 is a wiring diagram of a second signal layer of the digital display circuit board of the present invention;
FIG. 8 is a wiring diagram of a third signal layer of the digital display circuit board of the present invention;
FIG. 9 is a wiring diagram of a power plane of the digital display circuit board of the present invention;
fig. 10 is a wiring diagram of a fourth signal layer of the circuit board of the digital display screen of the present invention.
Detailed Description
Specific embodiments of the invention are further described below with reference to the accompanying drawings:
please refer to fig. 1 to 10. The full-color dot matrix digital display screen comprises a digital display screen circuit board 1, LED lamp beads 2 arranged on the circuit board and a full-color driving circuit which is arranged on the digital display screen circuit board and is electrically connected with the LED lamp beads. Wherein:
the LED lamp beads 2 are full-color LED lamp beads. In this embodiment, the LED lamp beads are 1010RGB lamp beads. The LED lamp beads comprise a plurality of LED lamp beads which can be arranged according to actual needs. In this embodiment, the arrangement of the LED lamp beads 2 is shown in fig. 3.
The full-color driving circuit comprises a full-color driving chip U1 and a peripheral circuit matched with the full-color driving chip. In this embodiment, the full-color driving chip U1 IS of the type IS31FL3733, and the peripheral circuit includes resistors R1-R6 and capacitors C1-C9.
The full-color dot matrix digital display screen has 256 gray levels for brightness adjustment under the control of the full-color driving chip U1.
In order to facilitate the connection of the digital display screen circuit board and the external microcontroller, the digital display screen circuit board is also provided with a plug-in port P1 connected with the external microcontroller.
In order to reduce the size of the digital display screen circuit board while realizing the function of the digital display screen, the LED lamp beads are arranged on the upper surface of the digital display screen circuit board, and the full-color driving chip and the peripheral circuit are arranged on the lower surface of the digital display screen circuit board.
In order to realize the integration of the full-color driving chip and the peripheral circuits thereof on the digital display screen circuit board, the digital display screen circuit board 1 comprises a first signal layer 11, a ground layer 12, a second signal layer 13, a third signal layer 14, a power layer 15 and a fourth signal layer 16 which are sequentially arranged from top to bottom. Wherein: the first signal layer 11 is printed with wiring of the LED lamp beads, so that the LED lamp beads can be welded on the upper surface of the digital display screen circuit board conveniently. The ground layer 12 is printed with ground wiring. The second signal layer 13 is printed with wiring of the full-color driving chip. The third signal layer 14 is printed with wiring of peripheral circuits of the full-color driving chip. The power supply layer 15 is printed with power supply wiring. The fourth signal layer 16 is printed with wiring terminals of the full-color driving chip and the peripheral circuit, thereby facilitating soldering of the full-color driving chip and the peripheral circuit on the lower surface of the digital display screen circuit board. The wirings of the first signal layer 11, the ground layer 12, the second signal layer 13, the third signal layer 14, the power layer 15, and the fourth signal layer 16 of this embodiment are shown in fig. 5, 6, 7, 8, 9, and 10, respectively.
In order to facilitate insulation between the layers, the digital display screen circuit board further comprises an insulating material layer 17 and a core layer 18, wherein the insulating material layer is arranged between the first signal layer and the grounding layer, between the second signal layer and the third signal layer and between the power supply layer and the fourth signal layer; the core board layer is arranged between the grounding layer and the second signal layer and between the third signal layer and the power supply layer.
The insulating-material layer 17 mainly serves as an adhesive material and an insulating material. The core layer 18 has a certain stiffness.
In order to prevent the digital display screen circuit board from being stuck with tin at the place where tin should not be coated when the digital display screen circuit board passes wave soldering, the digital display screen circuit board further comprises an upper solder mask 191 arranged above the first signal layer and a lower solder mask 192 arranged below the fourth signal layer.
In order to facilitate identification of names of components on the digital display screen circuit board for identification, the digital display screen circuit board further comprises an upper icon layer 193 arranged above the upper solder mask layer and a lower icon layer 194 arranged below the lower solder mask layer.
In this embodiment, the thickness of the digital display screen circuit board is 1.58 mm, where the thicknesses of the upper solder mask layer and the lower solder mask layer are all 0.01 mm, the thicknesses of the first signal layer, the ground layer, the second signal layer, the third signal layer, the power layer and the fourth signal layer are all 0.04 mm, the thickness of the insulating material layer is 0.21 mm, and the thickness of the core board layer is 0.36 mm.
According to the invention, the LED lamp beads are arranged to be full-color LED lamp beads, the digital display screen circuit board is improved, the digital display screen circuit board is arranged to comprise a first signal layer, a ground layer, a second signal layer, a third signal layer, a power layer and a fourth signal layer which are sequentially arranged from top to bottom, so that full-color driving chips and peripheral circuits thereof are all integrated on the digital display screen circuit board, the size of the digital display screen is reduced, the full-color LED lamp beads are driven by the full-color driving chips, and the full-color LED lamp beads can emit light with required colors according to requirements.
The full-color dot matrix digital display screen is designed and integrated with a full-color driving chip through a digital display screen circuit board, and the 1010RGB lamp beads are used on the digital display screen for the first time, have 256 gray levels with brightness adjustment, have small size and small occupied space, and can be used for developing brain-benefiting intelligent programmable toys for children and the like.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The utility model provides a full-color dot matrix digital display screen, includes digital display screen circuit board and sets up the LED lamp pearl on the circuit board, its characterized in that: the LED lamp beads are full-color LED lamp beads; the full-color dot matrix digital display screen is characterized in that the full-color dot matrix digital display screen further comprises a full-color driving circuit which is arranged on the digital display screen circuit board and electrically connected with the LED lamp beads, the full-color driving circuit comprises a full-color driving chip and a peripheral circuit matched with the full-color driving chip, and the digital display screen circuit board comprises a plurality of LED lamp beads which are sequentially arranged from top to bottom:
a first signal layer printed with wiring of the LED lamp beads;
a ground layer printed with a ground wiring;
a second signal layer printed with wiring of the full-color driving chip;
a third signal layer printed with wiring of a peripheral circuit of the full-color driving chip;
a power supply layer printed with power supply wiring;
and a fourth signal layer printed with the full-color driving chip and wiring terminal wiring of the peripheral circuit.
2. The full-color dot matrix digital display screen according to claim 1, wherein: the digital display screen circuit board also comprises an insulating material layer and a core plate layer, wherein the insulating material layer is arranged between the first signal layer and the grounding layer, between the second signal layer and the third signal layer and between the power supply layer and the fourth signal layer; the core board layer is arranged between the grounding layer and the second signal layer and between the third signal layer and the power supply layer.
3. The full-color dot matrix digital display screen according to claim 2, wherein: the digital display screen circuit board also comprises an upper solder mask layer arranged above the first signal layer and a lower solder mask layer arranged below the fourth signal layer.
4. A full-color dot matrix digital display according to claim 3, wherein: the digital display screen circuit board also comprises an upper icon layer arranged above the upper solder mask layer and a lower icon layer arranged below the lower solder mask layer.
5. The full-color dot matrix digital display screen according to claim 4, wherein: the full-color driving chip IS of the type IS31 FL3733.
6. The full-color dot matrix digital display screen according to claim 5, wherein: the digital display screen circuit board is also provided with an interface connected with an external microcontroller.
7. The full-color dot matrix digital display screen according to claim 6, wherein: the thickness of the upper solder mask layer and the lower solder mask layer is 0.01 millimeter, the thicknesses of the first signal layer, the ground layer, the second signal layer, the third signal layer, the power layer and the fourth signal layer are all 0.04 millimeter, the thickness of the insulating material layer is 0.21 millimeter, and the thickness of the core plate layer is 0.36 millimeter.
8. The full-color dot matrix digital display screen according to claim 1, wherein: the LED lamp beads are arranged on the upper surface of the digital display screen circuit board, and the full-color driving chip and the peripheral circuit are arranged on the lower surface of the digital display screen circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211102687.0A CN117711278A (en) | 2022-09-09 | 2022-09-09 | Full-color dot matrix digital display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211102687.0A CN117711278A (en) | 2022-09-09 | 2022-09-09 | Full-color dot matrix digital display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117711278A true CN117711278A (en) | 2024-03-15 |
Family
ID=90161225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211102687.0A Pending CN117711278A (en) | 2022-09-09 | 2022-09-09 | Full-color dot matrix digital display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117711278A (en) |
-
2022
- 2022-09-09 CN CN202211102687.0A patent/CN117711278A/en active Pending
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