CN115346449A - Design method of flexible transparent LED display screen - Google Patents
Design method of flexible transparent LED display screen Download PDFInfo
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- CN115346449A CN115346449A CN202210797967.1A CN202210797967A CN115346449A CN 115346449 A CN115346449 A CN 115346449A CN 202210797967 A CN202210797967 A CN 202210797967A CN 115346449 A CN115346449 A CN 115346449A
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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
-
- 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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention discloses a design method of a flexible and transparent LED display screen, which is characterized in that a plurality of lamp beads are welded on a selected circuit transparent substrate, a DIN pin and a DOUT pin between two adjacent lamp beads are connected in series, a circuit channel is additionally connected with an LED in parallel on a bonding pad of each lamp bead on an electrode on the transparent substrate, the electrode is used for providing breakpoint continuous transmission and a tin material source, and the generation of insufficient solder is avoided.
Description
Technical Field
The invention relates to the technical field of LED display screens, in particular to a design method of a flexible and transparent LED display screen.
Background
As shown in fig. 1-2, the shapes and the positions of the hexapod lamp beads and the four-pod lamp beads on the market are defined, and it can be found that the positions of the hexapod lamp beads are more backlight data input (DIN 1) and backlight data input (DOU 1) than those of the four-pod lamp beads. That is, when the lamp bead is out of service, that is, when the Data input (DIN 0) and Data output (DOU 0) function is lost, the back Data input (DIN 1) and back Data input (DOU 1) lines can be used to transmit signals to the next lamp bead without affecting the display performance of the next lamp bead or all lamp beads after the next lamp bead, and most of the design is to add a "many-to-one multiplexer (N-to-1 multiplexer)" in the lines. As shown in fig. 3, the schematic diagrams of the logic and logic circuits are respectively shown to achieve the above-described functions, even though the current design concept of breakpoint transmission of the built-in IC lamp bead is adopted. The design is very convenient and convenient, but a plurality of light shields and processing passes must be added on the IC, so that the volumes of the IC and the lamp beads are enlarged, and the IC price is also increased along with the water rising height. If the transparent display is applied to the transparent display in the future, the transmittance and the cost performance of the product are reduced.
Disclosure of Invention
The invention aims to provide a design method of a flexible and transparent LED display screen, which is different from the common LED display screen that the breakpoint transmission is designed in a built-in IC of a lamp bead and RGB wiring thereof in the lamp bead, but the LED display screen is designed in an invisible circuit of a transparent substrate, so that the cost of the IC, the cost of a light shield and the cost of rear-section packaging can be greatly reduced, meanwhile, the volume design of the lamp bead is reduced, and the advantages of flexibility and transparency of a transparent base material are combined, so that the problems provided in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a design method of a flexible transparent LED display screen comprises the following steps:
s1: welding a plurality of lamp beads on the selected circuit transparent substrate;
s2: connecting a DIN pin and a DOUT pin between two adjacent lamp beads in series;
s3: and an electrode which is connected with the LED in parallel and is arranged on the transparent substrate is additionally arranged on the bonding pad of each lamp bead, and is used for providing breakpoint transmission and a tin material source, so that the occurrence of insufficient soldering is avoided.
Furthermore, the transparent substrate of the circuit is made of one or more of glass, quartz, single crystal alumina, PA, PET, PEEK, CPI, PEI, PEN, PMMA, COC, COP, PC, LSR, FEP, SMMA, GPPS, PETG or PPSU, and the thickness of the transparent substrate of the circuit is 9um-10mm.
Furthermore, the metal electrode material on the circuit transparent substrate is gold, silver, copper, stainless steel or conductive alloy material thereof, wherein the thickness of the metal electrode is equal to the line width, and the metal electrode can be a solid circuit or a grid circuit; the width of the grid lines is between 1um and 5mm, the thickness is between 0.1um and 300um, and the grid line distance is between 1um and 10mm.
Furthermore, an additional line channel which is used for being connected with the LEDs in parallel and realizes the breakpoint continuous transmission function of the LED lamp beads is designed to be arranged on the transparent substrate of the line in a grid shape, wherein the length and width of the lamp beads are 15um x 15um-50mm x 50mm, and the thickness of the lamp beads is 1nm-5mm.
Furthermore, the additional parallel lines are arranged on the single surface or the double surfaces of the transparent substrate, and the additional lines for breakpoint transmission can be embedded in the transparent substrate.
Furthermore, the surface of the whole circuit transparent substrate is packaged by adopting a water-blocking and air-blocking material.
Further, the optical data of the selected circuit transparent substrate is as follows: the average penetration rate of visible light with the wavelength of 400-800nm is more than or equal to 50 percent; optical data of grid circuit + transparent substrate: the average penetration rate of visible light wavelength of 400-800nm is more than or equal to 10 percent; conductor electrode unpatterned front surface resistance: the surface resistance is less than or equal to 1 ohm; conductor electrode patterning rear resistance: the surface resistance is less than or equal to 10 ohm; the size of the lamp bead is as follows: length and width are less than 5mm.
Compared with the prior art, the invention has the beneficial effects that:
according to the design method of the flexible and transparent LED display screen, the transparent LED and the Mini LED are used for displaying, the 'black electrode on the IC is arranged on the Film' in a 'high-definition display design' plus 'invisible line design', the design method is different from the common LED display screen that the breakpoint is continuously transmitted to the built-in IC of the lamp bead and the RGB wiring in the lamp bead, and the LED display screen is designed in the invisible circuit of the transparent substrate, so that the cost of the IC, the cost of the photomask and the cost of rear-section packaging can be greatly reduced, meanwhile, the volume design of the lamp bead is reduced, and the advantages of flexibility and transparency of the transparent base material are fully utilized.
Drawings
FIG. 1 is a diagram of a conventional six-pin lamp bead definition;
FIG. 2 is a diagram of a conventional four-leg bead definition;
FIG. 3 is a schematic diagram of a conventional lamp bead logic and logic circuit;
FIG. 4 is a six-legged lamp bead pad diagram of the present invention;
FIG. 5 is a four-legged lamp bead pad diagram of the present invention;
FIG. 6 is a wiring diagram of the present invention showing the breakpoint transmission function of the four-foot lamp bead;
FIG. 7 is a functional diagram of breakpoint-free continuous transmission of a four-foot lamp bead according to an embodiment of the present invention;
FIG. 8 is a functional diagram of the four-foot lamp bead of the embodiment of the invention with breakpoint transmission;
FIG. 9 is a diagram illustrating an embodiment of the present invention for a break-point resume function of a four-foot lamp bead;
fig. 10 is another wiring diagram of the breakpoint resume function of the four-pin lamp bead according to the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The design method of the flexible and transparent LED display screen provided by the embodiment of the invention comprises the following steps:
s1: welding a plurality of lamp beads on the selected circuit transparent substrate;
s2: connecting a DIN pin and a DOUT pin between two adjacent lamp beads in series;
s3: and an electrode which is connected with the LED in parallel and is arranged on the transparent substrate is additionally arranged on the bonding pad of each lamp bead, and is used for providing breakpoint transmission and a tin material source, so that the occurrence of insufficient soldering is avoided.
The optical data of the circuit transparent substrate selected by the invention are as follows: the average penetration rate of visible light with the wavelength of 400-800nm is more than or equal to 50 percent; optical data of grid circuit + transparent substrate: the average penetration rate of visible light with the wavelength of 400-800nm is more than or equal to 10 percent; conductor electrode unpatterned front resistance: the surface resistance is less than or equal to 1 ohm; conductor electrode patterning rear resistance: the surface resistance is less than or equal to 10 ohm; the size of the lamp bead is as follows: length and width are less than 5mm.
Specifically, as shown in fig. 4-6, the lamp beads are divided into six-leg lamp beads and four-leg lamp beads, and the size of the four-leg lamp beads is smaller than that of the six-leg lamp beads; according to the invention, a breakpoint continuous transmission function is realized on four-pin lamp beads, as shown by a thick line in fig. 6, an electrode of a circuit channel on a substrate is additionally connected with an LED in parallel on a bonding pad of each lamp bead, and segment point continuous transmission and a tin material source can be provided, so that insufficient soldering can not be caused, wherein the length and width of each lamp bead are 15um, 50mm and the thickness is 1nm-5mm.
In the design of the invention, the material of the transparent substrate of the circuit is one or a mixture of more of glass, quartz, single crystal alumina, PA, PET, PEEK, CPI, PEI, PEN, PMMA, COC, COP, PC, LSR, FEP, SMMA, GPPS, PETG or PPSU, and the thickness of the transparent substrate of the circuit is 9-10 mm, preferably 12-300 um.
In the design of the invention, the metal electrode material on the circuit transparent substrate is gold, silver, copper, stainless steel or conductive alloy material thereof, wherein the thickness of the metal electrode is equal to the line width, and the metal electrode can be a solid circuit or a grid circuit; the width of the grid lines is between 1um and 5mm, the thickness is between 0.1um and 300um, the grid line distance is between 1um and 10mm, and the width of the grid lines is between 5um and 1.5 mm; the thickness of the grid line is between 1um and 200 um; the grid line spacing is preferably 3-1 mm.
In the above embodiment, an additional line channel for connecting in parallel with the LED to realize the breakpoint continuous transmission function of the LED lamp bead is designed to be arranged on the line transparent substrate in a grid shape, so as to improve invisibility of the additional line channel, and the additional parallel line channel is arranged on a single surface or double surfaces of the transparent substrate, and the additional line channel for transmitting the breakpoint continuous channel can be embedded in the transparent substrate, so that the overall thickness and the resistance value of the metal wire can be reduced, which is not repeated herein.
In addition, the surface of the whole circuit transparent substrate is packaged by adopting a water-blocking and air-blocking material, so that the reliability of the lamp beads and the circuit is protected.
In order to further explain the invention better, the following specific embodiments are also provided:
as shown in fig. 7 (a), 1-13 LED pads, of which 6,7 pads have no wires (damage = no LED-6 and no LED-7; or LED-6 and LED-7), representing a damaged LED bead. The others are intact lamp beads; fig. 7 (a-1) shows the equivalent circuit of fig. 7 (a), and the strikethrough shows that the four-pin lamp bead has no breakpoint continuous transmission function because the bonding pads 6 and 7 are damaged, so that the lamp beads from LED-8 to LED-13 cannot be displayed.
The DIN and DOUT of LED-5 are additionally connected in parallel using wires (dashed lines in FIG. 8 (b-1)) as shown in FIG. 8 (b), and the AC voltage signal obtained by LED-5 is still 0.7V, and there is no display abnormality due to the additional parallel wires, and FIG. 8 (b-1) is an equivalent circuit of FIG. three (b).
FIG. 9 (c) is a diagram in which a conducting wire (dotted line in FIG. 9 (c-1)) is additionally used to connect LED-5 DOUT and LED-8 DIN in parallel, and the AC voltage signals that are not affected by functional damage of LED-6 and LED-7 are supplied to LED-8 DIN; and the time pulse is not influenced, so that the lamp beads from the LED-8 to the LED-13 can be normally displayed, and an equivalent circuit shown in the figure 9 (c-1) is shown in the figure 9 (c).
FIG. 10 (d) is a diagram showing the additional parallel connection of LED-No. 1 DOUT and LED-No. 8 DIN using wires (dashed lines as in FIG. 10 (d-1)), where the functional impairments of LED-No. 6 and LED-No. 7 do not affect the supply of the AC voltage signal to LED-No. 8 DIN; the time pulse is not affected, so that the lamp beads from LED-1 to LED-5 and from LED-8 to LED-13 can be normally displayed, and the equivalent circuit of FIG. 10 (d-1) is shown in FIG. 10 (d).
In summary, the following steps: according to the design method of the flexible and transparent LED display screen, the transparent LED and the Mini LED are used for displaying at the same time, the Blackup electrode on the IC is arranged on the Film, and the high-definition display design is used for designing the invisible circuit, so that the design method is different from the common LED display screen that the breakpoint transmission is continuously designed on the built-in IC of the lamp beads and the RGB wiring of the built-in IC in the lamp beads, and the LED display screen is designed in the invisible circuit of the transparent substrate, so that the cost of the IC, the cost of a light shield and the cost of rear-section packaging can be greatly reduced, and meanwhile, the volume design of the lamp beads is reduced, and the advantages of flexibility and transparency of the transparent base material are fully utilized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (7)
1. A design method of a flexible transparent LED display screen is characterized by comprising the following steps:
s1: welding a plurality of lamp beads on the selected circuit transparent substrate;
s2: connecting a DIN pin and a DOUT pin between two adjacent lamp beads in series;
s3: and a circuit channel is additionally connected with the LED in parallel on the electrode on the transparent substrate on the bonding pad of each lamp bead, so that breakpoint continuous transmission and a tin material source are provided, and the occurrence of insufficient soldering is avoided.
2. The design method of the flexible transparent LED display screen according to claim 1, wherein: the transparent substrate of the circuit is made of one or a mixture of more of glass, quartz, single crystal alumina, PA, PET, PEEK, CPI, PEI, PEN, PMMA, COC, COP, PC, LSR, FEP, SMMA, GPPS, PETG or PPSU, and the thickness of the transparent substrate of the circuit is 9-10 mm.
3. The design method of the flexible transparent LED display screen according to claim 2, wherein: the metal electrode material on the circuit transparent substrate is gold, silver, copper, stainless steel or a conductive alloy material thereof, wherein the thickness of the metal electrode is equal to the line width, and the metal electrode can be a solid circuit or a grid circuit; the width of the grid lines is between 1um and 5mm, the thickness is between 0.1um and 300um, and the grid line distance is between 1um and 10mm.
4. The design method of the flexible transparent LED display screen of claim 3, wherein: an additional line channel which is used for being connected with the LEDs in parallel and realizes the breakpoint continuous transmission function of the LED lamp beads is designed to be arranged on the transparent substrate of the line in a grid shape, wherein the length and the width of the lamp beads are 15um x 15um-50mm x 50mm, and the thickness of the lamp beads is 1nm-5mm.
5. The design method of the flexible transparent LED display screen of claim 4, wherein the additional parallel lines are disposed on a single surface or double surfaces of the transparent substrate, and the additional lines for breakpoint transmission can be embedded in the transparent substrate.
6. The design method of claim 5, wherein the entire surface of the circuit transparent substrate is encapsulated with water-blocking and gas-blocking material.
7. The method according to claim 6, wherein the optical data of the selected circuit transparent substrate is as follows: the average penetration rate of visible light with the wavelength of 400-800nm is more than or equal to 50 percent; optical data of grid circuit + transparent substrate: the average penetration rate of visible light with the wavelength of 400-800nm is more than or equal to 10 percent; conductor electrode unpatterned front surface resistance: the surface resistance is less than or equal to 1 ohm; conductor electrode patterning rear resistance: the surface resistance is less than or equal to 10 ohm; the size of the lamp bead is as follows: length by width is less than 5 by 5mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210797967.1A CN115346449A (en) | 2022-07-06 | 2022-07-06 | Design method of flexible transparent LED display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210797967.1A CN115346449A (en) | 2022-07-06 | 2022-07-06 | Design method of flexible transparent LED display screen |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208519726U (en) * | 2018-07-24 | 2019-02-19 | 深圳市威能照明有限公司 | A kind of DC12V dual signal illusion-colour integrated lamp bulb |
| CN212010214U (en) * | 2020-06-08 | 2020-11-24 | 深圳市海柏恩科技有限公司 | LED display screen capable of continuously transmitting breakpoint |
| CN212544126U (en) * | 2020-08-13 | 2021-02-12 | 大连集思特科技有限公司 | LED lamp bead with internal seal IC for breakpoint continuous transmission bidirectional data transmission |
| CN212691529U (en) * | 2020-09-08 | 2021-03-12 | 惠州市瑞上光电有限公司 | Diffuse reflection waterproof injection molding module |
| CN215069016U (en) * | 2021-04-13 | 2021-12-07 | 珠海华萃科技有限公司 | Flexible transparent LED display screen and display |
| CN114446177A (en) * | 2022-02-15 | 2022-05-06 | 珠海华萃科技有限公司 | Soft film display screen, display and display screen manufacturing process |
-
2022
- 2022-07-06 CN CN202210797967.1A patent/CN115346449A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208519726U (en) * | 2018-07-24 | 2019-02-19 | 深圳市威能照明有限公司 | A kind of DC12V dual signal illusion-colour integrated lamp bulb |
| CN212010214U (en) * | 2020-06-08 | 2020-11-24 | 深圳市海柏恩科技有限公司 | LED display screen capable of continuously transmitting breakpoint |
| CN212544126U (en) * | 2020-08-13 | 2021-02-12 | 大连集思特科技有限公司 | LED lamp bead with internal seal IC for breakpoint continuous transmission bidirectional data transmission |
| CN212691529U (en) * | 2020-09-08 | 2021-03-12 | 惠州市瑞上光电有限公司 | Diffuse reflection waterproof injection molding module |
| CN215069016U (en) * | 2021-04-13 | 2021-12-07 | 珠海华萃科技有限公司 | Flexible transparent LED display screen and display |
| CN114446177A (en) * | 2022-02-15 | 2022-05-06 | 珠海华萃科技有限公司 | Soft film display screen, display and display screen manufacturing process |
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Application publication date: 20221115 |