CN114758584B - Spliced LED transparent display screen breaking through limitation of driving IC scanning line number - Google Patents
Spliced LED transparent display screen breaking through limitation of driving IC scanning line number Download PDFInfo
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- CN114758584B CN114758584B CN202210367714.0A CN202210367714A CN114758584B CN 114758584 B CN114758584 B CN 114758584B CN 202210367714 A CN202210367714 A CN 202210367714A CN 114758584 B CN114758584 B CN 114758584B
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- 239000011324 bead Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims description 22
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention relates to the field of display screens, and discloses a spliced LED transparent display screen which breaks through the limitation of the scanning line number of a driving IC, comprising an initial screen and an extension screen spliced along the Y direction; the initial screen is positioned at the edge, and the expansion screen is positioned at the inner side of the initial screen; the initial screen and the extension screen are provided with a plurality of groups of leads extending to the edge of the screen along the Y direction; wherein, each group of lead wires of extension screen passes through in the clearance of each group of lead wires of initial screen along Y direction, specifically includes: any group of leads of the expansion screen are staggered with one group of leads in the initial screen, or any group of leads in the expansion screen are arranged between two groups of leads of the initial screen; the invention is based on the scheme of rotating the LED lamp beads by a certain angle and carrying out Y-direction wiring, and increases the expansion screen in an innovative wiring mode, thereby improving the line division ratio of the LED transparent display screen.
Description
Technical Field
The invention relates to the field of display screens, in particular to a spliced LED transparent display screen capable of breaking through the limitation of the scanning line number of a driving IC.
Background
At present, the scanning line numbers of the driving ICs of the LED display screen on the market are generally 16-scan, 32-scan and 64-scan, and some companies release products with the IC scanning line numbers of 128-scan, but too many scanning line numbers can lead to shortening of the scanning time in unit time and insufficient brightness, so the driving ICs have no application value. The number of scanning lines of the IC determines the resolution of a single display module, the non-transparent screen can be spliced infinitely, and the influence of the number of scanning lines of the IC is not great, but if the transparent LED display screen is to be manufactured, the number of scanning lines of the driving IC determines the resolution level of the transparent screen, and the higher the number of lines, the higher the resolution.
As shown in fig. 2, in the prior art, the maximum of two transparent display screens can be spliced in the Y direction, and currently applicable driving ICs are 64-scan, so that even after the splicing, the resolution remains at 128 (rows) by N (columns), and the row resolution cannot be further enlarged.
Disclosure of Invention
In order to solve the technical problems, the invention provides a spliced LED transparent display screen which breaks through the limitation of the scanning line number of a driving IC.
In order to solve the technical problems, the invention adopts the following technical scheme:
a tiled LED transparent display screen that breaks through the drive IC scan line count limit, comprising: an initial screen and an extension screen spliced along the Y direction; the initial screen is positioned at the edge, and the expansion screen is positioned at the inner side of the initial screen; the initial screen and the extension screen are provided with a plurality of groups of leads extending to the edge of the screen along the Y direction; wherein, any group of lead wires of the expansion screen pass through the gap of the lead wires of the initial screen along the Y direction, and the method specifically comprises the following steps: any one set of leads of the expansion screen is staggered with a set of leads in the initial screen, or any one set of leads in the expansion screen is arranged between two sets of leads of the initial screen.
Specifically, the initial screen with the number of 1 and the expansion screen with the number of N are spliced along the Y direction, and the nth Zhang Kuozhan screen is marked as a n ，n≥2；a n Is formed by a along Y direction n-1 Is passed through the gap of the lead wire of a 1 Is passed in the Y-direction through the gaps of the leads of the initial screen; when the number of the expansion screens is large, the leads of the expansion screens on the inner side sequentially pass through the other expansion screens from inside to outside, and finally are led out through the initial screen.
a n Is formed by a along Y direction n-1 The gap of the lead wire of the wire guide plate comprises: expansion screen a n Any group of leads of (a) and expansion screen (a) n-1 Is staggered, or expanded screen a n Any group of leads are arranged on the expansion screen a n-1 Between the two sets of leads of (c).
a 1 Is passed in the Y-direction through the gap between the leads of the initial screen, and specifically includes: expansion screen a 1 Is staggered with a set of leads in the original screen, or extends screen a 1 Any one of the sets of leads is disposed between two sets of leads of the initial screen.
Specifically, the initial screen or the extended screen includes:
a transparent substrate having a plurality of conductive vias;
the pin bonding pad is arranged on the front surface of the transparent substrate and comprises an R pin bonding pad, a G pin bonding pad, a B pin bonding pad and a C pin bonding pad;
the LED lamp beads are positioned on the front surface of the transparent substrate and are arranged in a matrix; the LED lamp bead is provided with a plurality of pins, and a connecting line of any two adjacent pins and the connecting point of the transparent substrate forms a non-zero included angle with the Y direction; the pins of the LED lamp bead comprise an R pin connected with the R pin bonding pad, a G pin connected with the G pin bonding pad, a B pin connected with the B pin bonding pad and a C pin connected with the C pin bonding pad;
the connecting wire is positioned on the front surface of the transparent substrate and is used for connecting C pin bonding pad pins corresponding to the LED lamp beads in the X direction in series;
the leads comprise R leads, G leads, B leads and C leads which are positioned on the back surface of the transparent substrate and extend to the edge of the screen along the Y direction;
r pin pads of each LED lamp bead are connected in series through the conductive through holes by the R lead, G pin pads of each LED lamp bead are connected in series through the conductive through holes by the G lead, B pin pads of each LED lamp bead are connected in series through the conductive through holes by the B lead, and C lead is connected with the connecting wire through the conductive through holes.
Specifically, the connecting line of the connecting points of any two adjacent pins and the transparent substrate forms an included angle of 45 degrees with the Y direction.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention is based on the scheme of rotating LED lamp beads by a certain angle and carrying out Y-direction wiring, so that each group of leads of an expansion screen passes through gaps of each group of leads of an initial screen along the Y direction, and the invention specifically comprises the following steps: any group of leads of the expansion screen and one group of leads in the initial screen are arranged in a staggered manner, or any group of leads in the expansion screen are arranged between two groups of leads of the initial screen, so that seamless splicing of the expansion screen can be realized on the basis of the original scheme, and the limitation of the line division ratio of the LED transparent display screen is broken through.
Drawings
FIG. 1 is a schematic illustration of a splice of an initial screen and an extended screen in the present invention;
FIG. 2 is a schematic diagram of a screen splice in the basic patent;
FIG. 3 is a schematic structural diagram of the first embodiment;
fig. 4 is a schematic structural diagram of a second embodiment;
FIG. 5 is a schematic diagram of the arrangement of LED beads in the basic patent;
FIG. 6 is a schematic diagram of the structure of a transparent substrate in the basic patent;
FIG. 7 is a schematic diagram showing the relative positions of the through holes and the pin pads in the basic patent;
FIG. 8 is a schematic diagram of the front circuit of the basic patent;
FIG. 9 is a schematic diagram of the reverse wiring of the basic patent;
fig. 10 is a schematic diagram of the display area and flexible circuit board of the basic patent.
Detailed Description
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The invention is an improvement based on a patent document of an LED transparent display screen without edge wiring and a production method thereof (publication number is CN113506520A, hereinafter called basic patent).
The content of the basic patent is as follows:
the transparent substrate 20 is provided with conductive layers on both sides. The transparent substrate 20 is provided on the front surface with R-pin pads 31, G-pin pads 32, B-pin pads 33, and C-pin pads 34. The LED lamp bead 1 is provided with 4 pins, namely an R pin, a G pin, a B pin and a C pin, which are welded on an R pin welding disc 31, a G pin welding disc 32, a B pin welding disc 33 and a C pin welding disc 34 in sequence; the LED lamp beads 1 are arranged on the transparent substrate 20 in a rotating mode of 45 degrees, namely, a non-zero included angle, preferably a 45-degree included angle, is formed between the connecting line of the central points of any two adjacent pin bonding pads and the Y direction; according to the LED lamp bulb, the R lead 41, the G lead 42, the B lead 43 and the C lead extend along the Y direction, and the LED lamp bulb 1 is arranged in a mode of rotating 45 degrees, so that the R lead 41, the G lead 42 and the B lead 43 are not overlapped with each other, and a phenomenon that a large wiring area is occupied for avoiding lead overlapping is avoided; when the included angle is 45 °, the leads connecting the R-pin pad 31, the G-pin pad 32, and the B-pin pad 33 have equal pitches therebetween. Wherein Y direction is vertical direction in figures 1-5 and 7-9, and X direction is transverse direction in figures 1-5 and 7-9. The transparent substrate 20 used in the present invention is a transparent double-sided board, and its structure is shown in fig. 6. A through hole is drilled on the transparent substrate 20, and a layer of copper is plated on the wall of the through hole by a copper deposition process to obtain a conductive through hole 35, so that the first conductive layer 21 and the second conductive layer 22 are conducted. The conductive via 35 needs to be within the conjoined pad 36 or the independent pad 37 and needs to be kept at a distance D from the outer edge of the conjoined pad 36 or the independent pad 37. In fig. 9, R, G, B, C denotes positions of the R-pin pad 31, G-pin pad 32, B-pin pad 33, and C-pin pad 34 on the front surface of the transparent substrate 20, and C1 denotes a position where the connection line 44 is connected to the conductive via 35.
In the basic patent, the LED is rotatably placed, the R, G, B and C leads 41, 42, 43 and 44 are disposed on the back surface, the connecting wire 44 is disposed on the front surface, the R and G leads 41, 42 and 43 are connected through the pin pad and the conductive through hole 35, the C and C leads are connected with the connecting wire 44, and the R, G, B and C leads 41, 42, 43 and 44 all extend in the Y direction to the edge of the display area 60; because one edge of the screen in the Y direction is not provided with wiring, the screen can realize seamless splicing of two screens in the Y direction, and the splicing number of the screens in the X direction is unlimited.
According to the invention, by changing the wiring mode of the basic patent, the upper limit of the splicing quantity of the Y-direction screens can be increased on the premise of meeting the safety interval of the yellow light process, and the row resolution of the spliced LED transparent display screen is further improved. Specifically, this can be achieved in two ways:
(1) Any one group of leads in the expansion screen is arranged between two groups of leads of the initial screen;
(2) Any set of leads in the extended screen are staggered with a set of leads in the initial screen.
In the LED transparent display screen, the R lead 41, the G lead 42, and the B lead 43 of a column of LED beads 1 are shared, and the C lead of a row of LED beads 1 is shared, so that the LED positions of the C leads are generally uniformly distributed near each column of LED beads 1, so that a column of LED beads 1 corresponds to a group of leads, the group of leads includes the R lead 41, the G lead 42, the B lead 43, and the C lead, and a LED transparent display screen has multiple groups of leads.
In the invention, the LED transparent display screen positioned at the edge is an initial screen, and the LED transparent display screen positioned at the inner side of the initial screen Y is an expansion screen.
Example 1
As shown in fig. 1, the initial screen is marked as F, the extended screen is marked as EX, and in fig. 1, the number is added to the F to distinguish different initial screens, and the number is added to the EX to distinguish different extended screens. The extension screen is at an end remote from the flexible circuit board 50, the initial screen is at an end near the flexible circuit board 50, the extension screen and the initial screen are in the same substrate circuit board, and the leads of the extension screen extend to the flexible circuit board 50 through the circuit gap from the initial screen.
A group of R, G, B, and C leads 41, 42, 43, and C leads of the extension screen are respectively labeled EXR, EXG, EXB, EXC in sequence, and a group of R, G, B, and C leads 41, 42, 43, and C leads of the initial screen are respectively labeled FR, FG, FB, FC in sequence; all of the leads marked above are independent of each other and do not connect and eventually extend to different PINs on the flexible circuit board 50.
As shown in fig. 3, EXR extends between and is spaced from FR and FG, EXG extends between FG and FB, EXB extends outside FB, and EXC extends between FR and FC.
Of course, the relative positions of the R lead 41, the G lead 42, the B lead 43, and the C lead are changed according to the soldering positions of the LED pins, so the arrangement order of EXR, EXG, EXB, EXC and FR, FG, FB, FC along the X direction is also changed, but any such staggered arrangement should be considered as the embodiment and the protection scope of the present invention.
Example two
As shown in fig. 4, the only difference from the first embodiment is that: any one set of leads in the extension screen is disposed between two sets of leads in the initial screen.
In the first embodiment and the second embodiment, the minimum distance between the adjacent leads should be kept, where the minimum distance refers to a safe distance that meets the capability of the yellow light process, and the minimum distance is ensured not to be short-circuited and can be manufactured, and of course, in order to ensure the transparency of the LED transparent display screen, the larger the minimum distance is, the better. Since the leads of all the extension screens need to occupy the space of the initial screen to be led out, the number of extension screens corresponding to one initial screen is limited by the size of the minimum spacing.
As shown in fig. 2, in the basic patent, only two initial screens can be spliced in the Y-direction. In the present invention, an extension screen may be disposed between two initial screens, and if one initial screen can correspond to N extension screens, 2N extension screens can be disposed between the two initial screens. As shown in FIG. 1, there are two extension screens EX1-1, EX2-1 between the initial screens F1-1 and F2-1, wherein each set of leads of EX1-1 is connected to the flexible circuit board 50 through F1-1 and each set of leads of EX2-1 is connected to the flexible circuit board 50 through F2-1; since the X-direction edges of the initial screen and the extension screen are not wired, the X-direction screen stitching is not limited. In the case of n=1 illustrated in fig. 1, in fact, if the column spacing is sufficiently large, 2 or more expansion screens can be introduced to break the resolution limit of the tiled transparent screen
In the first and second embodiments, after the leads extend to the flexible circuit board 50, the leads are routed through the flexible circuit board 50 to be connected to two independent display driving modules, which are driven by different sets of ICs.
By adopting the scheme of the invention, the lines of the expansion screen occupy the space of the initial screen, so that the column spacing is required to be increased to accommodate the lines of the expansion screen, in this case, the column spacing and the row spacing of the pixels are possibly inconsistent, but according to the prior experience, the inconsistency of the column spacing and the row spacing does not influence the display image.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a single embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to specific embodiments, and that the embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
Claims (3)
1. The utility model provides a break through and drive transparent display screen of concatenation LED that IC scanning line number limited which characterized in that includes: an initial screen and an extension screen spliced along the Y direction; the initial screen is positioned at the edge, and the expansion screen is positioned at the inner side of the initial screen; the initial screen and the extension screen are provided with a plurality of groups of leads extending to the edge of the screen along the Y direction; wherein, any group of lead wires of the expansion screen pass through the gap of the lead wires of the initial screen along the Y direction, and the method specifically comprises the following steps: any group of leads of the expansion screen are staggered with one group of leads in the initial screen, or any group of leads in the expansion screen are arranged between two groups of leads of the initial screen;
the initial screen with the number of 1 and the expansion screen with the number of N are spliced along the Y direction, and the nth Zhang Kuozhan screen is marked as a n ，n≥2；a n Is formed by a along Y direction n-1 Is passed through the gap of the lead wire of a 1 Is passed in the Y-direction through the gaps of the leads of the initial screen; when the number of the expansion screens is large, the leads of the expansion screens on the inner side sequentially pass through other expansion screens from inside to outside, and finally are led out through the initial screen;
a n is formed by a along Y direction n-1 The gap of the lead wire of the wire guide plate comprises: expansion screen a n Any group of leads of (a) and expansion screen (a) n-1 Is staggered, or expanded screen a n Any group of leads are arranged on the expansion screen a n-1 Between two sets of leads;
a 1 is passed in the Y-direction through the gap between the leads of the initial screen, and specifically includes: expansion screen a 1 Is staggered with a set of leads in the original screen, or extends screen a 1 Any one of the sets of leads is disposed between two sets of leads of the initial screen.
2. The tiled LED transparent display screen that breaks through the drive IC scan line count limit of claim 1, wherein the initial screen or the extended screen each comprises:
a transparent substrate having a plurality of conductive vias;
the pin bonding pad is arranged on the front surface of the transparent substrate and comprises an R pin bonding pad, a G pin bonding pad, a B pin bonding pad and a C pin bonding pad;
the LED lamp beads are positioned on the front surface of the transparent substrate and are arranged in a matrix; the LED lamp bead is provided with a plurality of pins, and a connecting line of any two adjacent pins and the connecting point of the transparent substrate forms a non-zero included angle with the Y direction; the pins of the LED lamp bead comprise an R pin connected with the R pin bonding pad, a G pin connected with the G pin bonding pad, a B pin connected with the B pin bonding pad and a C pin connected with the C pin bonding pad;
the connecting wire is positioned on the front surface of the transparent substrate and is used for connecting C pin bonding pad pins corresponding to the LED lamp beads in the X direction in series;
the leads comprise R leads, G leads, B leads and C leads which are positioned on the back surface of the transparent substrate and extend to the edge of the screen along the Y direction;
r pin pads of each LED lamp bead are connected in series through the conductive through holes by the R lead, G pin pads of each LED lamp bead are connected in series through the conductive through holes by the G lead, B pin pads of each LED lamp bead are connected in series through the conductive through holes by the B lead, and C lead is connected with the connecting wire through the conductive through holes.
3. The spliced LED transparent display screen breaking through the limitation of the scanning line number of the driving IC according to claim 2, wherein the connecting line of the connecting points of any two adjacent pins and the transparent substrate forms an included angle of 45 degrees with the Y direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210367714.0A CN114758584B (en) | 2022-04-08 | 2022-04-08 | Spliced LED transparent display screen breaking through limitation of driving IC scanning line number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210367714.0A CN114758584B (en) | 2022-04-08 | 2022-04-08 | Spliced LED transparent display screen breaking through limitation of driving IC scanning line number |
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| Publication Number | Publication Date |
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| CN114758584A CN114758584A (en) | 2022-07-15 |
| CN114758584B true CN114758584B (en) | 2023-12-12 |
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| CN202210367714.0A Active CN114758584B (en) | 2022-04-08 | 2022-04-08 | Spliced LED transparent display screen breaking through limitation of driving IC scanning line number |
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|---|---|---|---|---|
| CN102484123A (en) * | 2009-09-08 | 2012-05-30 | 全球Oled科技有限责任公司 | Tiled Display With Overlapping Flexible Substrates |
| CN103745665A (en) * | 2014-01-13 | 2014-04-23 | 北京京东方显示技术有限公司 | Transparent display device |
| US9074742B1 (en) * | 2014-06-09 | 2015-07-07 | Richard J. Petrocy | Modularized display apparatus and method |
| CN109346003A (en) * | 2018-12-13 | 2019-02-15 | 大连集思特科技有限公司 | A kind of layer flexible transparent membrane LED display control system |
| CN109410785A (en) * | 2018-12-26 | 2019-03-01 | 湖南合利来智慧显示科技有限公司 | A kind of flexibility can arbitrarily splice the LED display module of shape |
| CN113506520A (en) * | 2021-06-22 | 2021-10-15 | 安徽精卓光显技术有限责任公司 | LED transparent display screen without edge wiring and production method thereof |
| WO2021258553A1 (en) * | 2020-06-22 | 2021-12-30 | 重庆康佳光电技术研究院有限公司 | Tiled display apparatus |
| CN114067730A (en) * | 2021-11-17 | 2022-02-18 | 合肥达视光电科技有限公司 | Point-to-point single-side transparent film display screen control circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10910355B2 (en) * | 2018-04-30 | 2021-02-02 | X Display Company Technology Limited | Bezel-free displays |
| US11164934B2 (en) * | 2019-03-12 | 2021-11-02 | X Display Company Technology Limited | Tiled displays with black-matrix support screens |
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2022
- 2022-04-08 CN CN202210367714.0A patent/CN114758584B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484123A (en) * | 2009-09-08 | 2012-05-30 | 全球Oled科技有限责任公司 | Tiled Display With Overlapping Flexible Substrates |
| CN103745665A (en) * | 2014-01-13 | 2014-04-23 | 北京京东方显示技术有限公司 | Transparent display device |
| US9074742B1 (en) * | 2014-06-09 | 2015-07-07 | Richard J. Petrocy | Modularized display apparatus and method |
| CN109346003A (en) * | 2018-12-13 | 2019-02-15 | 大连集思特科技有限公司 | A kind of layer flexible transparent membrane LED display control system |
| CN109410785A (en) * | 2018-12-26 | 2019-03-01 | 湖南合利来智慧显示科技有限公司 | A kind of flexibility can arbitrarily splice the LED display module of shape |
| WO2021258553A1 (en) * | 2020-06-22 | 2021-12-30 | 重庆康佳光电技术研究院有限公司 | Tiled display apparatus |
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| CN114067730A (en) * | 2021-11-17 | 2022-02-18 | 合肥达视光电科技有限公司 | Point-to-point single-side transparent film display screen control circuit |
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| CN114758584A (en) | 2022-07-15 |
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