CN102723056A - LED display panel driving method, device, display system and equipment - Google Patents
LED display panel driving method, device, display system and equipment Download PDFInfo
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Abstract
The invention provides an LED display panel driving method, device, display system and equipment, which are applicable to the field of LED display. The method comprises the following steps of: multiplexing driving ports as scanning ends and data switching ends; during scanning, using partial or all driving ports as the scanning ends in turn; using the rest part of or the rest all driving ports as the data switching ends; selecting LED lamps with anodes/cathodes connected to the scanning ends; and selectively lightening LED lamps with cathodes/anodes connected to the data switching ends. According to the invention, the driving ports are multiplexed into the scanning ends and the data switching ends; independent K*(K-1) LED lamp lattice array display can be achieved by K driving ports, so that a purpose of driving more LED lamp lattice arrays by using less driving ports is achieved, the utilization rate of the driving ports is greatly increased, the realization method is simple and low cost is achieved.
Description
Technical field
The invention belongs to LED and show the field, relate in particular to a kind of LED displaying panel driving method, device, display system and equipment.
Background technology
Light emitting diode (Light Emitting Diode; LED) be widely used in multiple occasion as the energy-saving and emission-reduction product, for example little LED panel fields such as electronic scale, table scale, electromagnetic oven, electric heater, air-conditioning, micro-wave oven, washing machine, STB, DVB-S, DVB-T, DVB-C, network machine top box, DTV STB.
The display area of little LED panel is less, and content is less, and the most key parameter request of large LED display screens such as color, refresh rate is lower, but to as how the most reasonably type of drive, optimum cost mode are had relatively high expectations.
What existing LED displaying panel driving method adopted is that ranks separately drive, the mode of scanning constant.As shown in Figure 1, be the LED display panel in the empty frame, form by a plurality of LED lamp arrays.The anode of each LED lamp is received the data switch end, and negative electrode is received the scanning end.
As shown in Figure 2, through integrated circuit driving LED display panel, this integrated drive electronics comprises N SEG port (data switch end) and M GRID port (scanning end).This LED lamp lattice array can be other shapes according to actual application environment; For example adopt 8 segment encode modes as shown in Figure 3 in some applications; Common cathode that can be as shown in Figure 4, common anode perhaps as shown in Figure 5 also can adopt 7 segment encode modes shown in Figure 6.
Existing LED displaying panel driving method adopts line scanning, and the mode of column selection property switch perhaps adopts column scan, the mode of row selective switch, and each LED in the array controls separately effectively.With column scan; The mode of row selective switch is an example; In elected during certain scanning port (these row NMOS that is about to choose among GRID (the 1) ~ GRID (M) among Fig. 1 manages conducting); These row LED lamp cathode of choosing is all received ground, and data switch end (SEG) port is optionally opened or closed these row LED lamp, realizes the independent control to the LED lamp.
For example select the LED lamp that SEG (2), SEG (N) locate in GRID (2) row to light, all the other LED of these row close, and then just with the PMOS conducting of SEG (2), SEG (N), all the other PMOS pipes are closed.Select next column LED lamp then.A scan period finishes, and the displaying contents of LED display panel is accomplished, and is reciprocal with this, obtains the lasting demonstration of whole LED display panel.If, get final product through the PMOS switch situation of revising the SEG port to the displaying contents change.
This shows; Existing LED displaying panel driving method can be accomplished single-point control to the LED display panel; For a scanning end M port arranged; The data switch end has the driving circuit of N port, and the LED lamp that can drive is counted and is N*M, just through M LED lamp point of (N+M) individual drive ports driving N *.
Existing LED displaying panel driving method has been fixed the function of scanning end and data switch end; Through M scanning port and M LED lamp point of N data switch port driving N *; Along with the integrated level of driving circuit constantly increases, this driving method can cause cost constantly to increase.
Summary of the invention
The embodiment of the invention provides a kind of LED displaying panel driving method, is intended to solve the function that existing LED displaying panel driving method has been fixed scanning port and data switch port, along with the ever-increasing problem of integrated level increase cost of driving circuit.
The embodiment of the invention is achieved in that a kind of LED displaying panel driving method, and said method comprises:
Drive ports is multiplexed with scanning end and data switch end;
During scanning; Part or all of drive ports is held as scanning in order; As the data switch end, choose anode/cathode to be connected to the LED lamp of scanning end remainder or all the other whole drive ports, selectivity is lighted the LED lamp that cathode/anode is connected to the data switch end.
The embodiment of the invention also provides a kind of LED display panel drive device, and said device comprises:
A plurality of driver elements, said driver element comprises driver module, and the drive ports corresponding with said driver module, said drive ports is multiplexed with scanning end and data switch end;
The scan control unit is used for part or all of drive ports is held as scanning in order, controls said driver element and chooses anode/cathode to be connected to the LED lamp of scanning end, and selectivity is lighted the LED lamp that cathode/anode is connected to the data switch end; And
The data switch control module, remainder or all the other whole drive ports except that the scanning end are set to the data switch end, according to the scan control signal reading displayed data of said scan control unit, offer corresponding driver element.
The embodiment of the invention also provides a kind of LED display system, and said LED display system comprises above-mentioned LED display panel drive device; And
The LED display panel, the column rule of said LED display panel, alignment are partly or entirely multiplexing.
The embodiment of the invention also provides a kind of electronic equipment, and said electronic equipment comprises above-mentioned LED display system.
The embodiment of the invention is multiplexed with scanning end and data switch end with drive ports; Utilize K drive ports can realize that the individual LED lamp of independent K * (K-1) lattice array shows; Reached the purpose of utilizing less drive ports to drive more LED lamp lattice array; Greatly improved the utilization factor of drive ports, implementation method is simple, and cost is low.
Description of drawings
Fig. 1 is the structural representation of LED display panel in the prior art;
Fig. 2 is the structural representation of LED display system in the prior art;
Fig. 3 is that 8 segment encode LED lamp lattice arrays show synoptic diagram in the prior art;
Fig. 4 is that the circuit during 8 segment encode LED lamp lattice array common cathode connects synoptic diagram in the prior art;
Fig. 5 is that the circuit during 8 segment encode LED lamp lattice array common anode connects synoptic diagram in the prior art;
Fig. 6 is that 7 segment encode LED lamp lattice arrays show synoptic diagram in the prior art;
Fig. 7 is when adopting the LED displaying panel driving method of the embodiment of the invention, the connection synoptic diagram of LED display panel;
Fig. 8 is the structural drawing of the LED display system in the embodiment of the invention;
Fig. 9 is the johning knot composition of the LED display system in the embodiment of the invention;
Figure 10 is the circuit diagram of the driver module when adopting the constant voltage driving mode in the embodiment of the invention;
Figure 11 is the circuit diagram of the driver module when adopting constant current drive mode in the embodiment of the invention;
Figure 12 is the scanning sequence synoptic diagram when adopting the LED displaying panel driving method of the embodiment of the invention;
Figure 13 is that the LED display panel in another embodiment of the present invention connects synoptic diagram.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention is multiplexing with scanning end and data switch end that the LED display panel drives, and each drive ports both can be used as the scanning end, also can be used as the data switch end, can utilize less drive ports to drive more LED lamp lattice array.
In embodiments of the present invention; Drive ports (OUT) is multiplexed with scanning end and data switch end; Be that each drive ports both can be used as scanning end (male or female that connects the LED lamp) and also can be used as data switch end (negative electrode or the anode that connect the LED lamp), but can not hold and the data switch end as scanning at synchronization.
During scanning; Part or all of drive ports is held as scanning in order; As the data switch end, choose anode/cathode to be connected to the LED lamp of scanning end remainder or all the other whole drive ports, selectivity is lighted the LED lamp that cathode/anode is connected to the data switch end.
In embodiments of the present invention, drive ports is separate, 1 drive ports is arranged at any time as the scanning end at most.
Through the driving method in the embodiment of the invention, after whole OUT ports were all respectively as scanning end and data switch end, K OUT port can realize that the individual LED lamp of independent K * (K-1) lattice array shows that wherein K is the natural number greater than 1.
When Fig. 7 showed the LED displaying panel driving method that adopts the embodiment of the invention, the connection synoptic diagram of LED display panel for the ease of explanation, only showed the part relevant with the embodiment of the invention.
This display panel has a plurality of driving interface, and each driving interface is independent, does not directly link to each other, and each driving interface is connected to the anode of all LED lamps of corresponding row, also is connected to the negative electrode of all LED lamps of respective column simultaneously.Between per 2 interfaces, have the LED lamp of 2 parallel connected in reverse phase to connect, for example the anode of LED1 connects the negative electrode of LED2, and the negative electrode of LED1 connects the anode of LED2.
In the LED display panel in embodiments of the present invention, anode and negative electrode are connected to the LED lamp of same driving interface and will can not be lighted.
Need to prove that in some special applications, some the LED lamp in the LED display panel dispenses, and should not be regarded as the restriction to the embodiment of the invention.
Fig. 8 shows the structure of the LED display system that the embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
This LED display system can be widely used in various LED applications; Especially little LED panel field is for example in the display system of equipment such as electronic scale, table scale, electromagnetic oven, electric heater, air-conditioning, micro-wave oven, washing machine, STB, DVB-S, DVB-T, DVB-C, network machine top box, DTV STB.
Comprise LED display panel drive device 1 and LED display panel 2 parts in this LED display system, wherein the drive ports of LED display panel drive device 1 all adopts data switch end and the multiplexing form of scanning end.
Referring to Figure 11; LED display panel 2 comprises LED lamp lattice array, and the line between the LED lamp, and the column rule of LED display panel 2, alignment are partly or entirely multiplexing; Be connected with the LED lamp of 2 parallel connected in reverse phase at least between the LED lamp short circuit of ranks line numbering same position, 2 ports.For example LED1, LED2 parallel connected in reverse phase are meant that the anode of LED1 connects the negative electrode of LED2, and the negative electrode of LED1 connects the anode of LED2.
Each port of LED display panel 2 is independent, does not directly link to each other.Wherein, certain port of LED display panel 2 is connected to the anode of all LED lamps of corresponding row, also is connected to the negative electrode of all LED lamps of respective column simultaneously.
As one embodiment of the present of invention; LED display panel 2 can be to be formed by connecting through line the LED individual devices; Also can be the LED lamp lattice array with whole LED individual devices, also can be a plurality of with partial L ED individual devices, the LED lamp lattice array that connects through line again.
LED display panel drive device 1 has a plurality of driver elements 11, and driver element 11 comprises driver module 111, and the drive ports 112 corresponding with driver module 111, and drive ports 112 is multiplexed with scanning end and data switch end.
In order as the scanning end, control drive unit 11 chooses anode/cathode to be connected to the LED lamp of scanning end with part or all of drive ports in scan control unit 12, and selectivity is lighted the LED lamp that cathode/anode is connected to the data switch end.
Each driver module is to there being a drive ports, and each driver module all has at least 1 anodic control end P (i) and cathodic control end N (i).
In embodiments of the present invention, driver element can be taked constant voltage driving mode, perhaps constant current drive mode.
The circuit that Figure 10 shows when adopting the constant voltage driving mode connects synoptic diagram, wherein:
OUT (i) port is connected to power supply through the source electrode of PMOS pipe, and the source electrode through the NMOS pipe is connected to ground, and whether anodic control end P (i), cathodic control end N (i) control conducting that PMOS, NMOS manage respectively.The drain electrode of the drain electrode of PMOS pipe and NMOS pipe connects altogether, connects end altogether and connects OUT (i) port.
The relation of anodic control end P (i), cathodic control end N (i), OUT (i) is as follows:
| P(i) | N(i) | OUT(i) |
| L | L | H |
| L | H | Invalid |
| H | L | High-impedance state |
| H | H | L |
Wherein, H is high level or current source, and L is that low level or electric current are heavy.
Anodic control end P (i) is connected to the grid of PMOS pipe, when anodic control end P (i) is " H ", and not conducting of PMOS; When anodic control end P (i) was " L ", PMOS managed conducting, and OUT (i) port is connected to power supply.
Cathodic control end N (i) is connected to the grid of NMOS pipe, and when cathodic control end N (i) was " H ", the NMOS conducting was connected to ground with OUT (i) port; When anodic control end P (i) was " L ", NMOS managed not conducting.
When anodic control end P (i), cathodic control end N (i) are respectively " H ", when " L ", PMOS, NMOS manage not conductings, and this moment, OUT (i) port was " high-impedance state ".
The circuit that Figure 11 shows when adopting constant current drive mode connects synoptic diagram, and OUT (i) port is connected to power supply through current source, is connected to ground through electric current is heavy.
Whether the conducting that anodic control end P (i), cathodic control end N (i) difference Control current source, electric current sink.When anodic control end P (i) was effective, OUT (i) port poured into constant electric current to load; When cathodic control end N (i) was effective, OUT (i) port was extracted constant electric current out from load.When making the OUT port driver like this, the working current of load is constant.
What be worth explanation is, the mode of constant current can also adopt the PMOS pipe that power supply is provided, and the heavy mode that constant current is provided of electric current can also adopt the NMOS pipe to provide low level, current source that the mode of constant current is provided.
As one embodiment of the present of invention, when adopting constant-current driving, driver module 111 comprises a current source and one switching tube over the ground, and drive ports 112 connects power supply through this current source, through this switching tube ground connection over the ground.Anodic control end P (i) and cathodic control end N (i) control this current source respectively and the switching tube conducting is whether over the ground.
As another embodiment of the present invention, when adopting constant-current driving, driver module 111 comprise one heavy to power supply switch tube and an electric current.Drive ports 112 connects power supply through this to power supply switch tube, and through the heavy ground connection of this electric current, anodic control end P (i) and cathodic control end N (i) control this respectively whether power supply switch tube and electric current sunk conducting.
In embodiments of the present invention, effective if scanning is held when being " H ", then be set to " L " and light LED through the data switch end, be set to " high-impedance state " and close LED; Effective when if the scanning end is " L ", then be set to " H " and light LED through the data switch end, be set to " high-impedance state " and close LED.
Data switch control module 13 remainder or all the other whole drive ports except that the scanning end are set to the data switch end, according to the scan control signal reading displayed data of scan control unit 12, offer corresponding driver element 11.
Effectively is example with the scanning end for " H ":
Sometime, the PMOS pipe conducting of the driver module that scan control unit 12 is corresponding with certain drive ports OUT (i), the NMOS pipe is closed, and makes OUT (i) port be output as " H ".The PMOS pipe of all the other all of the ports is closed, and to guarantee any moment, only has maximum 1 drive ports to be output as " H ".All the other drive ports all are to read and the corresponding video data of OUT (i) sweep signal through data switch control module 3, and controlling the interior NMOS pipe of the corresponding driver element of remainder or all the other whole drive ports is " L " perhaps " high-impedance state ".
Next constantly; The PMOS pipe conducting of the driver module that scan control unit 12 is corresponding with next drive ports OUT (i+1); The NMOS pipe is closed; Make OUT (i+1) port be output as " H ", remainder or all the other whole ports are according to video data, are set to " L " perhaps " high-impedance state " by the NMOS pipe of data switch control module 3 correspondences.So back and forth, to OUT (N), timesharing is set to " H " from OUT (1), accomplishes a scan period.Certainly, can choosing wherein, the part port does not still reach maximum demonstration dot matrix number for scanning end yet.
In embodiments of the present invention, both can anode connection scan, also can cathode connection scanning.When anode connection scanned, the scanning end when data switch end is " L ", was lighted this LED for " H ", when data switch is " high-impedance state ", closes this LED; When cathode connection scanned, the scanning end when data switch end is " H ", was lighted this LED for " L ", when data switch is " high-impedance state ", closes this LED.
For example, at a time, when OUT (i) port as scanning end, and " L " is effective, all the other OUT ports are as the data switch end.If light the 1st, i+1, a K LED lamp, and let all the other LED lamps extinguish, then with OUT (1), OUT (i+1), OUT (K) port are set to " H ", and all the other OUT ports are set to " high-impedance state ".
If all OUT ports are set to scanning end and data switch end, suppose that at a time OUT (i) port is as the scanning end, OUT (1) ~ OUT (i-1) port, OUT (i+1) ~ OUT (K) port are as the data switch end.OUT (i) port is set to high level or current source at this moment; Choose the anode of LED to be connected to the LED lamp of OUT (i) port; Then heavy mode is lighted the LED lamp that the LED negative electrode is connected to this port to all the other OUT ports through being set to low level or electric current; Perhaps, extinguish the LED lamp that the LED negative electrode is connected to this port through being set to the mode of " high-impedance state ".
The LED display panel comprises LED lamp lattice array, and the line between the LED lamp, and column rule and alignment are shared, is connected with the LED lamp of 2 parallel connected in reverse phase at least between the LED lamp short circuit of ranks line numbering same position, 2 ports.For example LED1, LED2 parallel connected in reverse phase are meant that the anode of LED1 connects the negative electrode of LED2, and the negative electrode of LED1 connects the anode of LED2.
Figure 12 shows the output waveform of the LED display panel in the embodiment of the invention, wherein LED
AbRepresent the LED lamp of the capable b row of a.
At moment t+1; OUT (1) port is set to the scanning end; Be output as " H " (high level or current source),, make corresponding LED light or close through OUT (2) ~ OUT (K) port being set to " L " (low level or electric current are heavy) perhaps " high-impedance state ".For example, OUT (2) port is set to " high resistant ", LED
21Do not light; OUT (3) port is set to " L ", LED
31Light ..., OUT (K) port is set to " L ", LED
K1Light;
At moment t+2; OUT (2) port is set to the scanning end; Be output as " H " (high level or current source),, make corresponding LED light or close through OUT (1) port, OUT (3) ~ OUT (K) port being set to " L " (low level or electric current are heavy) perhaps " high-impedance state ".For example, OUT (1) port is set to " L ", LED
12Light; OUT (3) port is set to " L ", LED
32Light ..., OUT (K) port is set to " L ", LED
K2Light;
At moment t+3; OUT (3) port is set to the scanning end; Be output as " H " (high level or current source),, make corresponding LED light or close through OUT (1) ~ (2) port, OUT (4) ~ OUT (K) port being set to " L " (low level or electric current are heavy) perhaps " high-impedance state ".For example, OUT (1) port is set to " high resistant ", LED
13Do not light; OUT (2) port is set to " L ", LED
23Light ..., port OUT (K) is set to " high resistant ", LED
K3Do not light;
Continue with this, up to moment t+K, accomplish a display cycle, the individual LED lamp of K* (K-1) is independently lighted, form a display frame, so back and forth, through a plurality of display cycles, this display panel obtains dynamic display frame.
Know that through above-mentioned the embodiment of the invention is multiplexing through scanning end and data switch end, adopts above-mentioned scan mode, K drive ports can realize the independent control of the individual LED lamp of K* (K-1).
Existing display mode is because scanning end and data switch port are independent; Scan mode is fixed; So the LED lamp point number that N scanning port and M data switch port can independently be controlled in the LED panel is N*M, adopts the method in the embodiment of the invention, will scan hold and the data switch end multiplexing; Adopted the scan mode that changes, a LED lamp point number is that (N+M) * (N+M-1) is individual in the LED panel so N+M OUT port of employing can independently be controlled.
Suppose N=10; M=8; The LED lamp point number that existing display mode can independently be controlled is 10*8=80, and the number that the embodiment of the invention can independently be controlled LED lamp point is (10+8) * (10+8-1)=306, has improved port utilization ratio greatly; With rational type of drive, obtained more excellent cost and reduced.
As another one embodiment of the present invention, as the scanning end, data switch end (connecting the LED negative electrode) is an example as SS to scan mode with scanning end (connecting the LED anode).
In the present embodiment, each display cycle is divided into cycle a, and two minor cycles of cycle b, circuit connects part in the dotted line shown in figure 13.
In cycle a, a part of OUT port, for example OUT1 ~ OUT (i) port is held as scanning, but not as the data switch end, all the other all or part of OUT ports, for example OUT (i+1) ~ OUT (K) port is as the data switch end.
In cycle b, as the OUT port of scanning end, as the data switch end, the OUT port as the data switch end among the cycle a is held as scanning among the cycle a.
In the present embodiment, end and data switch end are multiplexing owing to scanning, and have adopted the scan mode that changes, and a number of LED lamp point is 2*N*M in the LED panel so N+M OUT port can independently be controlled.
Suppose N=10, M=8, a number of the LED lamp point that existing display mode can independently be controlled is 10*8=80, the LED lamp point number that the embodiment of the invention can independently be controlled is 2*8*10=160.
The embodiment of the invention is multiplexed with scanning end and data switch end with drive ports; Utilize K drive ports can realize that the individual LED lamp of independent K * (K-1) lattice array shows; Reached the purpose of utilizing less drive ports to drive more LED lamp lattice array; Greatly improved the utilization factor of drive ports, implementation method is simple, and cost is low.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a LED displaying panel driving method is characterized in that, said method comprises:
Drive ports is multiplexed with scanning end and data switch end;
During scanning; Part or all of drive ports is held as scanning in order; As the data switch end, choose anode/cathode to be connected to the LED lamp of scanning end remainder or all the other whole drive ports, selectivity is lighted the LED lamp that cathode/anode is connected to the data switch end.
2. LED displaying panel driving method as claimed in claim 1 is characterized in that said drive ports is separate, 1 drive ports is arranged at any time as the scanning end at most.
3. LED displaying panel driving method as claimed in claim 1; It is characterized in that, when scanning, effective if scanning is held when being " high level or current source "; Then be set to " low level or electric current are heavy " and light LED, be set to " high-impedance state " and close LED through the data switch end;
Effective when if the scanning end is " low level or electric current are heavy ", then be set to " high level or current source " and light LED through the data switch end, be set to " high-impedance state " and close LED.
4. LED displaying panel driving method as claimed in claim 3 is characterized in that, drive pattern adopts constant voltage driving pattern or constant-current driving pattern;
Said constant voltage driving pattern or constant-current driving pattern realize through switching tube and/or constant-current device.
5. a LED display panel drive device is characterized in that, said device comprises:
A plurality of driver elements, said driver element comprises driver module, and the drive ports corresponding with said driver module, said drive ports is multiplexed with scanning end and data switch end;
The scan control unit is used for part or all of drive ports is held as scanning in order, controls said driver element and chooses anode/cathode to be connected to the LED lamp of scanning end, and selectivity is lighted the LED lamp that cathode/anode is connected to the data switch end; And
The data switch control module, remainder or all the other whole drive ports except that the scanning end are set to the data switch end, according to the scan control signal reading displayed data of said scan control unit, offer corresponding driver element.
6. LED display panel drive device as claimed in claim 5 is characterized in that said drive ports is separate, 1 drive ports is arranged at any time as the scanning end at most.
7. LED display panel drive device as claimed in claim 5; It is characterized in that, when scanning, effective if scanning is held when being " high level or current source "; Then be set to " low level or electric current are heavy " and light LED, be set to " high-impedance state " and close LED through the data switch end;
Effective when if the scanning end is " low level or electric current are heavy ", then be set to " high level or current source " and light LED through the data switch end, be set to " high-impedance state " and close LED.
8. LED display panel drive device as claimed in claim 5 is characterized in that, said driver module adopts constant voltage driving pattern or constant-current driving pattern;
Said constant voltage driving pattern or constant-current driving pattern realize through switching tube and/or constant-current device.
9. a LED display system is characterized in that, said LED display system comprises the described LED display panel drive device of the arbitrary claim of claim 5 to 8; And
The LED display panel, the column rule of said LED display panel, alignment are partly or entirely multiplexing.
10. an electronic equipment is characterized in that, said electronic equipment comprises the described LED display system of claim 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578663A (en) * | 2016-03-01 | 2016-05-11 | 深圳市富满电子集团股份有限公司 | LED display driving circuit |
| CN106255276A (en) * | 2016-09-23 | 2016-12-21 | 深圳市思远半导体有限公司 | A kind of power driving circuit |
| CN108170021A (en) * | 2018-02-12 | 2018-06-15 | 宗仁科技(平潭)有限公司 | A kind of electronic watch driving circuit and electronic watch |
| CN108735137A (en) * | 2017-06-07 | 2018-11-02 | 浙江苏泊尔家电制造有限公司 | Circuit system and cooking apparatus for household electrical appliances display screen |
| CN109389936A (en) * | 2018-12-13 | 2019-02-26 | 中科芯集成电路股份有限公司 | Matrix LED controls display device |
| CN110211526A (en) * | 2018-12-07 | 2019-09-06 | 华帝股份有限公司 | LED matrix display and scanning driving method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206172A (en) * | 1998-06-15 | 1999-01-27 | 王仲健 | LED pixel driver circuit and tristate driving method |
| CN101436367A (en) * | 2007-11-16 | 2009-05-20 | 珠海格力电器股份有限公司 | LED display control device |
| CN102194393A (en) * | 2011-06-21 | 2011-09-21 | 深圳市微芯集成电路设计有限公司 | LED (Light-Emitting Diode) display driving circuit |
-
2012
- 2012-06-01 CN CN201210179117.1A patent/CN102723056B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206172A (en) * | 1998-06-15 | 1999-01-27 | 王仲健 | LED pixel driver circuit and tristate driving method |
| CN101436367A (en) * | 2007-11-16 | 2009-05-20 | 珠海格力电器股份有限公司 | LED display control device |
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