CN114067730B - Point-to-point single-side transparent film display screen control circuit - Google Patents
Point-to-point single-side transparent film display screen control circuit Download PDFInfo
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- CN114067730B CN114067730B CN202111360615.1A CN202111360615A CN114067730B CN 114067730 B CN114067730 B CN 114067730B CN 202111360615 A CN202111360615 A CN 202111360615A CN 114067730 B CN114067730 B CN 114067730B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
Abstract
The invention discloses a point-to-point single-sided transparent film display screen control circuit which comprises a plurality of PCBs (printed circuit boards), wherein the PCBs are sequentially connected in a rectangular array, the PCBs are connected to form a control module, the control module is connected with a wiring module, and the control module comprises a plurality of control units. According to the LED lamp bead common cathode design of the PCB inside each control unit, four wiring boards are simultaneously utilized to respectively connect and control each row of PCB and the anode of each control unit, so that the length of the display main body of the LED transparent display screen is greatly increased, when the LED transparent display screen is spliced with the control module, the problem that the light transmission of the LED transparent display screen is influenced due to the fact that the distance between the partial PCB in the control module and the LED transparent display screen is too close can be avoided, the LED lamp bead scheme which originally needs lamp driving and is integrally unstable is simplified into a common LED lamp bead reinforcing scheme, the product stability is greatly improved, and the cost price is greatly reduced.
Description
Technical Field
The invention belongs to the technical field of control circuits, and particularly relates to a point-to-point single-side transparent film display screen control circuit.
Background
LED lamp pearl on the market divide into two types at present, and one kind is that luminous tube core + supporting structure + glue are encapsulated (ordinary LED lamp pearl a), and one kind is that luminous tube core + built-in IC + supporting structure + glue are encapsulated (lamp drives integrative b), and former LED lamp pearl is with low costs, stability height but control circuit board partial design is complicated to raise the cost price of supporting material. The latter is powerful but has poor stability and high price cost.
Most current LED transparent display screen mainly utilizes the multilayer PCB board to control LED lamp pearl and give out light for two-sided transparent circuit board is with high costs poor stability, and the single face circuit board walks not to pass through the circuit or the area carries the distance short (the concatenation vestige is many and unsightly when the large-size screen is spliced), and the lamp pearl poor stability and the price that current conventional transparent display lamp drove the integrated design and lead to are high, can't show the problem that the dot-to-dot control makes the yields extremely low.
Therefore, it is necessary to invent a point-to-point single-sided transparent film display control circuit to solve the above problems.
Disclosure of Invention
In view of the above problems, the present invention provides a point-to-point single-sided transparent film display screen control circuit to solve the problems set forth in the above background art.
In order to achieve the purpose, the invention provides the following technical scheme: the point-to-point single-sided transparent film display screen control circuit comprises a plurality of PCBs (printed Circuit boards), wherein the PCBs are sequentially connected in a rectangular array, and are connected to form a control module, the control module is connected with a wiring module, the control module comprises a plurality of control units, and two adjacent control units are sequentially connected;
the PCB inboard portion is provided with LED lamp pearl, resistance R1 and resistance R2, resistance R1 and resistance R2 one end are connected with the LED lamp pearl respectively.
Further, the control module is composed of a plurality of rows of connected PCB boards from top to bottom and a plurality of columns of connected PCB boards from left to right, and the control module comprises a PCB board L1, a PCB board L2, … … and a PCB board L384, and the plurality of PCB boards are combined to form a forty-eight row and eight column control module.
Furthermore, the PCB connected in the first row and the PCB connected in the second row are combined to form a first control unit, the PCB connected in the third row and the PCB connected in the fourth row are combined to form a second control unit, and the twenty-fourth control unit is formed by the PCB connected in the seventeenth row and the PCB connected in the forty-eighth row.
Further, the PCB connected with the odd columns is connected with the LED lamp beads through resistors R1, the odd columns comprise a first column, a third column, a fifth column and a seventh column, the PCB connected with the even columns is connected with the LED lamp beads through resistors R2, and the even columns comprise a second column, a fourth column, a sixth column and an eighth column.
Further, in the PCB board of the row connection of the control module:
the PCB is respectively connected with the pins 4, 3 and 2 of the adjacent PCB through the pins 7, 8 and 9;
Further, in the PCB board to which the columns of the control module are connected:
the PCB is respectively connected with the pins 1 and 10 of the adjacent PCB through the pins 5 and 6, and the PCB in the first row is respectively connected with the pins 1 of the PCB in the second row through the pins 5;
in the eighth column of PCB boards:
in the control unit, the PCB is connected to the pin 9, the pin 8 and the pin 7 of the adjacent PCB through the pin 7, the pin 8 and the pin 9, respectively.
Further, the junction module comprises four junction boards which are respectively arranged as a junction board J1, a junction board J2, a junction board J3 and a junction board J4, and the plurality of control units are respectively connected with the plurality of junction boards through pins 2, 3 and 4.
Further, each column of the PCB is respectively connected with a plurality of wiring boards through pins 5 and pins 6.
The invention has the technical effects and advantages that:
1. according to the LED lamp bead common cathode design of the PCB inside each control unit, four wiring boards are simultaneously utilized to respectively connect and control each row of PCB and the anode of each control unit, so that the length of the display main body of the LED transparent display screen is greatly increased, when the LED transparent display screen is spliced with the control module, the problem that the light transmission of the LED transparent display screen is influenced due to the fact that the distance between the partial PCB in the control module and the LED transparent display screen is too close can be avoided, the LED lamp bead scheme which originally needs lamp driving and is integrally unstable is simplified into a common LED lamp bead reinforcing scheme, the product stability is greatly improved, and the cost price is greatly reduced.
2. The invention integrates the wiring part of a complex control module on an LED packaging display screen, the original multilayer PCB is converted into a single-layer PCB, the bottom of an LED lamp bead in the PCB is configured by a resistor R1 and a resistor R2, the anode signal of each column of lamp beads of each control unit is connected with a single-sided transparent flexible display screen, the display screen is selectively mounted by utilizing R1 and R2, and the flashing control of the LED lamp bead in the PCB is realized by utilizing the cross mode of the resistor R1 and the resistor R2 without mutual interference and short circuit; a single PCB board comprises LED light-emitting lamp beads, a display screen, R1 resistors and R2 resistors, the problem of cross of a single-panel circuit can be solved, and double-sided conductive circuits of a single-sided transparent flexible circuit board are avoided.
3. According to the invention, part of the circuits of the control module are centralized to one side for supplying power and signals, so that the partial transparency of the LED transparent display screen can be maximized to the maximum extent, the plurality of PCB boards are utilized for carrying out single-layer arrangement of a rectangular array, the rapid connection of lines is ensured, the hardware PCB board parts of the control module are all positioned on one side of the LED transparent display screen, and the LED transparent display screen can be cut according to different field sizes of projects without influencing the working performance of the control module.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 shows a circuit diagram of a control module PCB board connection of an embodiment of the present invention;
FIG. 2 shows a circuit diagram of a circuit of LED lamp beads inside a PCB board according to an embodiment of the invention;
fig. 3 shows a pin circuit diagram of a wiring board of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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 invention provides a point-to-point single-sided transparent film display screen control circuit, which comprises a plurality of PCBs (printed circuit boards), wherein the PCBs are sequentially connected in a rectangular array, and the PCBs are connected to form a control module, as shown in figures 1-2. The control module is connected with the wiring module, the control module comprises a plurality of control units, and two adjacent control units are sequentially connected; the PCB board is inside to be provided with LED lamp pearl, resistance R1 and resistance R2, resistance R1 and resistance R2 one end are connected with LED lamp pearl respectively. The method is completed by converting the original multilayer PCB into a single-layer PCB, and the bottoms of the LED lamp beads in the PCB are configured by a resistor R1 and a resistor R2, so that the LED lamp beads in the PCB are controlled to flash in a manner that the resistor R1 and the resistor R2 are crossed but do not interfere with each other and are not short-circuited.
In fig. 1, the control module is composed of PCB boards connected in a plurality of rows from top to bottom and PCB boards connected in a plurality of columns from left to right, and the control module includes PCB board L1, PCB boards L2, … … and PCB board L384, and a plurality of PCB boards are combined to form a forty-eight row and eight column control module. The single-layer arrangement of the rectangular arrays is carried out by utilizing the plurality of PCB boards, the quick connection of the lines is ensured, the hardware PCB board part of the designed line is all positioned at one side of the LED transparent display screen, the LED transparent display screen can be automatically cut according to the difference of the field size of the project, and the working performance of the control module is not influenced.
In fig. 1, a first row of connected PCBs and a second row of connected PCBs are combined to form a first control unit, a third row of connected PCBs and a fourth row of connected PCBs are combined to form a second control unit, and up to a seventeenth row of connected PCBs and a forty-eighth row of connected PCBs are combined to form a twenty-fourth control unit. Selecting a proper PCB board by an arithmetic progression formula which is a n ＝a 1 + (n-1) d wherein a n As a control unit, a 1 The first item 9 is a tolerance d of 16, and n is a positive integer. When n is 1, the first control unit is connected with the wiring module through pin 2, pin 3 and pin 4 of the PCB L9, and when n is 2, the second control unit is connected with the wiring module through pin 2, pin 3 and pin 4 of the PCB L25, until when n is 24, the twenty-fourth control unit is connected with the wiring module through pin 2, pin 3 and pin 4 of the PCB L377. Exemplary, control Module of the invention The block is exemplified by 384 PCBs, but not limited to the certain number of PCBs, on the basis, the number of PCBs and the number of wiring modules correspondingly connected to the control module may be increased or decreased, the number of PCBs of the control module may be adjusted at any time according to actual needs, and adaptability of the control module to different locations is improved.
In fig. 1 and 2, the PCB boards connected to the odd columns are connected to the LED lamp beads through resistors R1, wherein the odd columns include a first column, a third column, a fifth column and a seventh column, and the PCB boards connected to the even columns are connected to the LED lamp beads through resistors R2, wherein the even columns include a second column, a fourth column, a sixth column and an eighth column. For example, in the odd columns, pin 1 of PCB L9 is connected to pin 5 of PCB L1, i.e. pin 1 of PCB L9 is connected to LED lamp bead of PCB L1 via pin 5 of PCB L1 and resistor R1. Similarly, in the even columns, the pin 10 of the PCB L18 is connected to the pin 6 of the PCB L10, that is, the pin 10 of the PCB L18 is connected to the LED lamp bead of the PCB L10 through the pin 6 of the PCB L6 and the resistor R2. When the whole control circuit is not energized, the resistor R1 is on the odd-numbered columns, and the resistor R2 NC (normally closed: normally closed contact) is on the odd-numbered columns, and the resistor R2 is on the even-numbered columns, and the resistor R1 NC is on the even-numbered columns. A single PCB board comprises LED lamp pearl (the trinity ordinary luminescent lamp pearl of RGB) + display screen (this display screen is not limited to glass base material, the fine material of glass, aluminium base material, ceramic material etc.) + R1 resistance + R2 resistance, can prevent the cross problem of single-sided board circuit, avoids the transparent flexible line way board of single face to realize two-sided conducting wire. The combination of the LED lamp beads, the display screen, the R1 resistor and the R2 resistor is finished in a lamp bead packaging factory, braid packaging is respectively made, and according to the fact that a BOM (Bill of material: Bill of materials) is different, positive signals of each row of lamp beads in each control unit are LED out to pins of a PCB (printed circuit board) of a partial row tube of the control board respectively.
In order to increase the loading length (referring to the quantity of the LED lamp beads) of the control signals, every two rows of LED lamp beads are connected with the negative electrodes (referring to R-/G-/B-) and LED out to the pin end of the constant-current PCB of the control panel part. And respectively leading out the positive signals of each row of lamp beads in each control unit to pins of a PCB (printed circuit board) of a row tube of the control board, wherein each two rows of LED lamp beads rotate by 180 degrees to ensure that each control unit (R-/G-/B-) realizes the direct connection of a single-sided PCB. And the anode signal of each column of lamp beads in each control unit is different row tube signals.
In fig. 1 and 3, in the PCB board to which the rows of control modules are connected: the PCB is respectively connected with the pins 4, 3 and 2 of the adjacent PCB through the pins 7, 8 and 9; pin 2 and pin 9 all are connected with the red light of LED lamp pearl, pin 3 and pin 8 all are connected with the green light of LED lamp pearl, pin 4 and pin 7 all are connected with the blue light of LED lamp pearl. The wiring module comprises four wiring boards, the four wiring boards are respectively arranged to be a wiring board J1, a wiring board J2, a wiring board J3 and a wiring board J4, and the control units are respectively connected with the wiring boards through pins 2, 3 and 4.
The first row of PCB boards and the second row of PCB boards form a first control unit, which is connected to pin 4, pin 5 and pin 6 of the wiring board J1 through pin 2, pin 3 and pin 4 of PCB board L9, respectively. The second control unit is respectively connected with a pin 7, a pin 8 and a pin 9 of a wiring board J1 through a pin 2, a pin 3 and a pin 4 of a PCB L25, the third control unit is respectively connected with a pin 10, a pin 11 and a pin 12 of a wiring board J1 through a pin 2, a pin 3 and a pin 4 of a PCB L41, the fourth control unit is respectively connected with a pin 19, a pin 20 and a pin 21 of a wiring board J1 through a pin 2, a pin 3 and a pin 4 of a PCB L57, the fifth control unit is respectively connected with a pin 22, a pin 23 and a pin 24 of a wiring board J1 through a pin 2, a pin 3 and a pin 4 of the PCB L73, and the sixth control unit is respectively connected with a pin 25, a pin 26 and a pin 27 of the wiring board J1 through a pin 2, a pin 3 and a pin 4 of the PCB L89.
Similarly, the seventh control unit, the eighth control unit, … and the twelfth control unit are all connected with the wiring board J2, the thirteenth control unit, the fourteenth control unit, … and the eighteenth control unit are all connected with the wiring board J3, and the nineteenth control unit, the twentieth control unit, … and the twenty-fourth control unit are all connected with the wiring board J4.
In fig. 1 and 3, in the PCB board to which the columns of control modules are connected: the PCB is respectively connected with the pins 1 and 10 of the adjacent PCB through the pins 5 and 6, and the PCB in the first row is respectively connected with the pins 1 of the PCB in the second row through the pins 5. In the eighth column of PCB boards: in the control unit, the PCB is connected to the pin 9, the pin 8 and the pin 7 of the adjacent PCB through the pin 7, the pin 8 and the pin 9, respectively. Make things convenient for the control unit can carry out flashing control to the inside LED lamp pearl of two lines of PCB boards, guaranteed every the control unit's independent control effect, and the control unit can not produce control effect to other the control unit's LED lamp pearl, has guaranteed every the control unit's independence.
Each column of the PCB is respectively connected with a plurality of wiring boards through pins 5 and pins 6.
Utilize the design of the LED lamp pearl common cathode of the inside PCB board of every control unit, utilize four wiring boards to connect respectively and control every row of PCB board and every control unit's positive pole simultaneously, to a great extent has increased the length of LED transparent display screen display main part, when LED transparent display screen splices with control module, can avoid control module part PCB board and LED transparent display screen to be too close and influence the problem of LED transparent display screen light transmissivity, and will originally need the integrative unstable LED lamp pearl scheme of lamp drive to simplify into ordinary LED lamp pearl and strengthen the version scheme, make product stability greatly promote, cost price greatly reduces.
The display screen achieves the aim of point-to-point control based on a driving control mode combining line scanning and column scanning, firstly, a PCB is arranged at the edge of the overall layout of the display panel, and line driving control signals and column scanning control signals start from the edge so as to control the change process of LED lamp beads (R/G/B luminous tubes inside the lamp beads) inside the PCB on the whole display screen from being extinguished to being brightest.
The invention integrates the wiring part of the complex control module on the LED packaging display screen, the original multilayer PCB is converted into a single-layer PCB, the bottom of the LED lamp bead in the PCB is configured by a resistor R1 and a resistor R2, the anode signal of each column of lamp bead of each control unit is connected with the single-sided transparent flexible display screen, the display screen is selectively mounted by utilizing R1 and R2, and the flashing control of the LED lamp bead in the PCB is realized by utilizing the mode that the resistor R1 and the resistor R2 are crossed but do not interfere with each other and do not short circuit. Meanwhile, partial circuit parts of the control module are concentrated to one side for supplying power to supply signals, so that partial transparency of the LED transparent display screen can be maximized to the maximum extent.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. Point-to-point single face transparent film display screen control circuit, its characterized in that: the PCB wiring module comprises a plurality of PCBs (printed circuit boards), wherein the PCBs are sequentially connected in a rectangular array, and are connected to form a control module, the control module is connected with a wiring module, the control module comprises a plurality of control units, and two adjacent control units are sequentially connected;
the LED lamp beads, the resistor R1 and the resistor R2 are arranged inside the PCB, and one ends of the resistor R1 and one ends of the resistor R2 are respectively connected with the LED lamp beads;
the control module consists of PCBs (printed circuit boards) connected in a plurality of rows from top to bottom and PCBs connected in a plurality of columns from left to right, the control module comprises a PCB L1, PCBs L2, … … and a PCB L384, and the PCBs are combined to form a control module with forty-eight rows and eight columns;
the PCB connected with the odd columns is connected with the LED lamp beads through resistors R1, the odd columns comprise a first column, a third column, a fifth column and a seventh column, the PCB connected with the even columns is connected with the LED lamp beads through resistors R2, and the even columns comprise a second column, a fourth column, a sixth column and an eighth column;
The wiring module comprises four wiring boards, the four wiring boards are respectively arranged to be a wiring board J1, a wiring board J2, a wiring board J3 and a wiring board J4, and the control units are respectively connected with the wiring boards through pins 2, 3 and 4.
2. The point-to-point single-sided transparent film display control circuit of claim 1, wherein:
the PCB connected in the first row and the PCB connected in the second row are combined to form a first control unit, the PCB connected in the third row and the PCB connected in the fourth row are combined to form a second control unit, and the control unit is formed by combining the PCB connected in the fourth seventeenth row and the PCB connected in the forty-eighth row.
3. The point-to-point single-sided transparent film display control circuit of claim 2, wherein:
in a row-connected PCB board of a control module:
the PCB is respectively connected with the pins 4, 3 and 2 of the adjacent PCB through the pins 7, 8 and 9;
pin 2 and pin 9 all are connected with the red light of LED lamp pearl, pin 3 and pin 8 all are connected with the green light of LED lamp pearl, pin 4 and pin 7 all are connected with the blue light of LED lamp pearl.
4. The point-to-point single-sided transparent film display control circuit of claim 1, wherein:
In a column-connected PCB board of a control module:
the PCB is respectively connected with the pins 1 and 10 of the adjacent PCB through the pins 5 and 6, and the PCB in the first row is respectively connected with the pins 1 of the PCB in the second row through the pins 5;
in the eighth column of PCB boards:
in the control unit, the PCB is connected to the pin 9, the pin 8 and the pin 7 of the adjacent PCB through the pin 7, the pin 8 and the pin 9, respectively.
5. The point-to-point single-sided transparent film display control circuit of claim 1, wherein:
each column of the PCB is respectively connected with a plurality of wiring boards through pins 5 and pins 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111360615.1A CN114067730B (en) | 2021-11-17 | 2021-11-17 | Point-to-point single-side transparent film display screen control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111360615.1A CN114067730B (en) | 2021-11-17 | 2021-11-17 | Point-to-point single-side transparent film display screen control circuit |
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| CN114067730A CN114067730A (en) | 2022-02-18 |
| CN114067730B true CN114067730B (en) | 2022-07-29 |
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| CN114758584B (en) * | 2022-04-08 | 2023-12-12 | 安徽精卓光显技术有限责任公司 | Spliced LED transparent display screen breaking through limitation of driving IC scanning line number |
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| CN1163000A (en) * | 1994-09-09 | 1997-10-22 | 狄肯研究公司 | Display panel with electrically-controlled waveguide-routing |
| CN102254523A (en) * | 2010-05-18 | 2011-11-23 | 硅工厂股份有限公司 | Chip-on-glass (COG) type liquid crystal display device |
| CN204303277U (en) * | 2014-11-07 | 2015-04-29 | 深圳市金华光科技有限公司 | A kind of LED display based on lamp pearl high-density array structure |
| CN113314069A (en) * | 2020-02-26 | 2021-08-27 | 新宸科技股份有限公司 | Display device control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100661828B1 (en) * | 2006-03-23 | 2006-12-27 | 주식회사 아나패스 | Display, timing controller and data driver for transmitting serialized multi-level data signal |
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- 2021-11-17 CN CN202111360615.1A patent/CN114067730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163000A (en) * | 1994-09-09 | 1997-10-22 | 狄肯研究公司 | Display panel with electrically-controlled waveguide-routing |
| CN102254523A (en) * | 2010-05-18 | 2011-11-23 | 硅工厂股份有限公司 | Chip-on-glass (COG) type liquid crystal display device |
| CN204303277U (en) * | 2014-11-07 | 2015-04-29 | 深圳市金华光科技有限公司 | A kind of LED display based on lamp pearl high-density array structure |
| CN113314069A (en) * | 2020-02-26 | 2021-08-27 | 新宸科技股份有限公司 | Display device control method |
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