CN113677062A

CN113677062A - Light-emitting component control module with pin saving function and display

Info

Publication number: CN113677062A
Application number: CN202010408943.3A
Authority: CN
Inventors: 郑锦池; 郑锦鐘
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-11-19

Abstract

The invention provides a light-emitting component control module with pin saving, which is used for controlling an LED lamp module to emit light. The light emitting component control module comprises a first control module and a second control unit, and the first control module comprises a driving module and a first control unit. The second control unit provides a control signal group to the first control unit, selectively provides a current command group to the driving module, or provides a logic signal group to the first control unit; when the second control unit provides the current command group, the first control unit writes the current value of the current command group into the driving module; when the second control unit provides the logic signal group, the first control unit controls the driving module to clear the current value according to the logic signal group.

Description

Light-emitting component control module with pin saving function and display

Technical Field

The present invention relates to a light emitting device control module and a display, and more particularly, to a light emitting device control module and a display using the same set of lines to provide signals and current sources.

Background

With the progress of optoelectronic technology, the range of optoelectronic applications is becoming wider, and among them, Light-Emitting diodes (LEDs) are most commonly used in the field of displays. Advocate, the application is to form a display panel by forming a matrix of LEDs, and to control the LEDs in each row to illuminate sequentially in a frequency sweep (time division multiplexing) manner.

As commercial demands nowadays increasingly focus on the lightness and thinness of display products, there is an increasing demand for limiting or reducing the size and footprint of control modules for controlling light emitting diodes. However, the control module must simultaneously receive the current for controlling the light emitting of the light emitting diode and the control signal, so that the number of the pins is too large, and the size and the occupied space of the control module cannot be smoothly reduced. In addition, due to the fact that the number of the pins is too large, when the control module is welded, poor welding is easily caused due to the fact that the pins are too small or too close to each other, and receiving or transmitting of signals or current of the control module is disabled.

Disclosure of Invention

In order to solve the above problems, the present invention provides a light emitting device control module and a display with reduced pins, which utilizes the special circuit and control design of the control module to reduce the number of pins of the control module, so as to overcome the problems of the prior art.

Therefore, the light emitting component control module with pin space saving of the invention controls the light emitting of the LED lamp module, and the light emitting component control module comprises: a first control module comprising: and the driving module is coupled with the LED lamp module. And the first control unit is coupled with the driving module. And the second control unit is coupled with the first control unit and the driving module, provides a control signal group to the first control unit and provides a current command group to the driving module. The second control unit selectively provides the current command set to the driving module or provides the logic signal set to the first control unit; when the enabling signal group is at the first level and the second control unit provides the current command group, the first control unit controls the driving module to execute a writing program and write the current value of the current command group into the driving module, so that the driving module adjusts the brightness of the LED lamp module according to the current value; when the enable signal group is at the first level and the second control unit provides the logic signal group, the first control unit controls the driving module to execute the clearing program and controls the driving module to clear the current value according to the logic signal group.

Optionally, the first control unit includes a plurality of controllers, the driving module includes a plurality of driving units, and the LED lamp module includes a plurality of LED lamp units, the number of the plurality of controllers, the number of the plurality of driving units, and the number of the plurality of LED lamp units are the same, and the plurality of driving units are correspondingly coupled to the plurality of controllers and the plurality of LED lamp units.

Optionally, the enable signal group comprises a first enable signal and a second enable signal, and the logic signal group comprises a select signal group and a clear signal; the selection signal selects the corresponding controller, so that the selected controller executes the write program according to the current command set or executes the clear program according to the clear signal.

Optionally, each LED lamp unit includes at least one LED lamp, and the number of the at least one LED lamp corresponds to the number of the selection signal group plus the clear signal; when the first enabling signal is at the second level and the second enabling signal is at the first level, the first control unit executes a pre-clearing program, memorizes the LED lamp corresponding to the selection signal group when the selection signal group is at the first level, and memorizes the LED lamp corresponding to the clearing signal when the clearing signal group is at the first level.

Optionally, when the first control unit executes the clearing procedure, the selected controller controls the corresponding coupled driving unit to clear the current value according to the selection signal group or the clearing signal memorized as the first level by the pre-clearing procedure.

Optionally, each controller comprises: a logic circuit for receiving the first enable signal, the second enable signal, the select signal group and the clear signal; when the first enable signal and the second enable signal are at the first level and the clear signal is at the second level, the controller selected by the selection signal group provides a third enable signal to the drive unit correspondingly coupled to the controller, so that the drive unit correspondingly coupled to the controller executes the write-in program; when the first enable signal, the second enable signal and the clear signal are at the first level, the controller selected by the selection signal set correspondingly provides an enable signal set to the corresponding coupled driving unit according to the selection signal set or the clear signal memorized as the first level by the pre-clear program, so that the corresponding coupled driving unit executes the clear program.

Optionally, the second control unit comprises: at least two buffer gates, each buffer gate including an input terminal, an output terminal and a control terminal, the input terminal receiving a level signal, and the control terminal receiving an enable signal; at least two switch units correspondingly coupled with the output ends of the at least two buffer gates and the first control module; and at least two current sources are correspondingly coupled with the at least two switch units; when the starting signal is at the second level and the at least two switch units are conducted, the second control unit provides the current command set to the driving module according to the at least two current sources; when the enable signal is at a first level and the at least two switch units are turned off, the second control unit provides the logic signal group at the first level or the logic signal group at the second level to the first control unit according to whether the level signal is at the first level or the second level.

Optionally, each LED lamp unit includes three primary color LED lamps, and the first control module includes eight pins, and at least three pins for receiving a current command set or a logic signal set, two pins for receiving an enable signal set, a ground pin, and a power pin.

Optionally, each LED lamp unit includes a monochromatic LED lamp, and the first control module includes six pins, and at least includes two pins for receiving a current command set or a logic signal set, two pins for receiving an enabling signal set, a ground pin, and a power pin.

In order to solve the above problems, the present invention also provides a display to overcome the problems of the prior art. Accordingly, the display of the present invention comprises: the light emitting matrix comprises a plurality of rows or a plurality of columns of LED lamp modules, and each row or each column of LED lamp modules is correspondingly coupled with a plurality of first control modules. And the second control module is coupled with the luminous matrix and comprises a plurality of second control units. The second control module controls the second control unit to sequentially drive the first control modules in one row or one column in a time-sharing and multitasking mode so as to control the LED lamp modules in one row or one column to emit light.

The main effect of the present invention is that the second control unit selectively provides the current command set or the logic signal set on the same line, so that the first control module can integrate the pins for receiving the current command set and the pins for receiving the logic signal set into the same group of pins, thereby achieving the effect of greatly reducing the number of pins of the first control module.

Drawings

FIG. 1 is a block diagram of a light emitting device control module with pin-saving features according to the present invention;

FIG. 2A is a block diagram of a light emitting device control module with pin-saving features according to a first embodiment of the present invention;

FIG. 2B is a block diagram of a light emitting device control module with pin-saving features according to a second embodiment of the present invention;

FIG. 3A is a detailed logic block diagram of the controller according to the present invention;

FIG. 3B is a detailed block diagram of the controller coupled to the driving unit according to the present invention;

FIG. 4A is a block diagram of a driving unit according to the present invention;

FIG. 4B is a detailed circuit diagram of the current regulator circuit according to the present invention;

FIG. 5A is a detailed logic block diagram of a second control unit according to the present invention;

FIG. 5B is a truth table diagram of a second control unit according to the present invention;

FIG. 6 is a timing control waveform diagram of a light emitting device control module with pin-saving features according to the present invention;

FIG. 7A is a schematic diagram of a package structure of a first embodiment of a first control module according to the invention;

FIG. 7B is a diagram illustrating a package structure of a first control module according to a second embodiment of the present invention; and

FIG. 8 is a block diagram of a display device constructed by the light emitting device control module according to the present invention.

Description of the symbols:

100. 100' … control module;

10. 10' … a first control module;

102. 102' … drive module;

102-1 to 102-4, 102-1 'to 102-2' … drive units;

102A to 102C … current regulation circuit;

1022 … current adjusting unit;

a Q1 … first transistor;

a Q2 … second transistor;

1024 … a first switching unit;

1026 … a first energy storage unit;

1028 … path switching unit;

qr … release switch;

104. 104' … first control unit;

104-1 to 104-4, 104-1 'to 104-2' … controllers;

LG … logic circuitry;

20 … a second control module;

204. 204' … second control unit;

d1~ D3 … buffer gate;

s1, S2, S3 … switch unit;

ir, Ig, Ib … current sources;

an X … input;

a Y … output;

a Z … control terminal;

2 … light emitting matrix;

200 … LED light module;

200-1 to 200-4, 200-1 'to 200-2' … LED lamp units;

200A … red LED lamp;

a … display;

vd … drive voltage;

vdd … operating voltage;

idg … drive current group;

id 1-Id 4 … drive current;

ida … red drive current;

cig, Cig' … current command set;

ci1 … first current command;

ci2 … second current command;

IR, IG, IB … current commands;

scg … control signal group;

seg … enables a signal group;

se1 … first enable signal;

a second enable signal of Se2, Se 20-Se 2n …;

se3 … third enable signal;

slg, Slg' … logic signal group;

ssg, Ssg' … select signal groups;

IR, IG … select signals;

IRB, IGB … reverse selection signal group;

CS … select command;

sc, IB … clear signals;

IBB … reverse clear signal;

CR, CG, CB … clear logic signals;

SR … clear command;

SRB … reverse purge command;

the ENCR, the ENCG and the ENCB … release energy signal groups;

ENCR … release enable signal;

VIR, VIG, VIB … level signals;

wr … write program;

sl … selecting program;

clp … pre-clearing program;

cl … purge procedure;

time t 0-t 11 …;

time periods T1-T3 …;

pins R, G, B, ENX, ENY, VCC1, VCC2, GND, IN0, IN1 ….

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

Fig. 1 is a block diagram of a light emitting device control module with pin-saving features according to the present invention. The control module 100 is coupled to the LED lamp module 200, and provides the driving current group Idg to drive a plurality of LED lamps inside the LED lamp module 200, and controls the current conducting time of the driving current group Idg to adjust the brightness of the LED lamps. The control module 100 includes a first control module 10 and a second control unit 204, and the first control module 10 includes a driving module 102 and a first control unit 104. The driving module 102 is coupled to the LED lamp module 200, the first control unit 104 and the second control unit 204, and the first control unit 104 is coupled to the second control unit 204.

The second control unit 204 provides the control signal group Scg to the first control unit 104, and provides the current command group Cig to the driving module 102. Specifically, the control signal set Scg includes an enable signal set Seg provided to the first control unit 104 and a logic signal set Slg provided to the second control unit 204, and the second control unit 204 selectively provides a current command set Cig to the driving module 102 or provides the logic signal set Slg to the first control unit 104. Further, to reduce the number of pins of the first control module 10, the second control unit 204 selectively provides the current command set Cig or the logic signal set Slg on the same line, so that the first control module 10 can integrate the pins for receiving the current command set Cig and the pins for receiving the logic signal set Slg into the same set of pins, so that the number of pins of the first control module 10 can be greatly reduced. Thus, the first control module 10 only needs to include a pin for receiving the enable signal set Seg, a pin for receiving the current command set Cig or the logic signal set Slg, a pin for grounding, and a pin for receiving the power. The number of pins is only 5 pins at the lowest, and may not exceed 8 pins at the highest (if there are functions other than those described above, this is not the case). Therefore, the difficulty of welding the pins of the first control module 10 can be greatly reduced, and the quality of signal transmission after welding can be improved. Moreover, since the number of pins can be greatly reduced, the number of connection lines of the first control module 10 is also greatly reduced, so that the design of the circuit layout of the circuit board becomes relatively simple, and the noise interference caused by mutual coupling of signals on the circuit can be reduced.

When the enable signal set Seg is at the first level (high level) and the second control unit 204 provides the current command set Cig, the first control unit 104 controls the driving module 102 to execute the write program Wr. The writing program Wr is that the first control unit 104 writes the current value of the current command group Cig into the driving module 102, so that the driving module 102 generates the driving current group Idg according to the current value to control and adjust the brightness of the LED lamp module 200. The brightness of the plurality of LED lamps in the LED lamp module 200 can be adjusted according to the driving current of the driving current group Idg. When the enable signal set Seg is at the first level (high level) and the second control unit 204 provides the logic signal set Slg, the first control unit 104 controls the driving module 102 to execute the clearing procedure Cl. The clearing routine Cl is used for the first control unit 104 to control the driving module 102 to clear the current value according to the logic signal set Slg. The LED lamp module 200 is not illuminated because the previously written current values within the driver module 102 are cleared at this point. The LED lamps in the LED lamp module 200 can be individually controlled not to emit light. That is, it is only necessary to correspondingly clear the current value belonging to a certain LED lamp to control the certain LED lamp not to emit light.

Fig. 2A is a block diagram of a light emitting device control module with reduced pin space according to a first embodiment of the present invention, and is combined with fig. 1. For example, one second control unit 204 controls four sets of LED lamp units 200-1 to 200-4, and each LED lamp unit 200-1 to 200-4 includes three primary color LED lamps (i.e., each LED lamp unit 200-1 to 200-4 includes a red LED lamp, a blue LED lamp, and a green LED lamp). The first control unit 104 includes four controllers 104-1 to 104-4, and the driving module 102 includes four driving units 102-1 to 102-4. The driving units 102-1 to 102-4 are respectively coupled to the controllers 104-1 to 104-4 and the LED lamp units 200-1 to 200-4, and the second control unit 204 is coupled to each of the controllers 104-1 to 104-4 and each of the driving units 102-1 to 102-4. The number of the controllers 104-1 to 104-4, the number of the driving units 102-1 to 102-4 and the number of the LED lamp units 200-1 to 200-4 are the same.

Since each of the LED lamp units 200-1 to 200-4 includes three primary color LED lamps, the current command set Cig provided by the second control unit 204 includes a current command for controlling a red LED lamp, a current command for controlling a blue LED lamp, and a current command for controlling a green LED lamp. The enable signal set Seg includes a first enable signal Se1 and a second enable signal Se2, and the logic signal set Slg includes a select signal set Ssg and a clear signal Sc. Since the logic signal group Slg and the current command group Cig share the same set of line outputs of the second control unit 204, the selection signal group Ssg and the clear signal Sc correspond to the current commands of the three primary colors. That is, the total number of the select signal group Ssg and the clear signal Sc is three, the logic signal group Slg includes two logic signals, and 4 different states (00, 01, 11, 10) can be formed by the change of "0" and "1". Each state corresponds to one of the controllers 104-1-104-4, so that a selected set of controllers 104-1-104-4 can be selectively controlled by changing the state of the selected signal set Ssg. Taking the example where the controller 104-1 is selected, if the second control unit 204 provides the current command set Cig at this time, the controller 104-1 executes the write program Wr. If the second control unit 204 provides the logic signal set Slg at this time, the controller 104-1 executes a clearing procedure Cl.

Specifically, the first enable signal and the second enable signal mainly determine what kind of program is executed, and when the first enable signal Se1 and the second enable signal Se2 are both at the first level (high level), the controllers 104-1 to 104-4 execute the write program Wr or the erase program Cl. When the first enabling signal Se1 is at the second level (low level) and the second enabling signal Se2 is at the first level, the controllers 104-1 to 104 to 4 execute the pre-clearing procedure, and when the first enabling signal Se1 is at the first level and the second enabling signal Se2 is at the second level, the controllers 104-1 to 104 to 4 execute the selection procedure. Before the controllers 104-1-104-4 execute the cleaning procedure Cl, the pre-cleaning procedure and the selection procedure are executed. The selection procedure determines that the selection controller 104-1 executes the purge procedure Cl according to the 4 different states (for example, but not limited to, "00"). The pre-clearing procedure is to pre-memorize the current value to be cleared, so as to accurately and rapidly clear the current value when the clearing procedure Cl is executed.

Taking the controller 104-1 of fig. 2A as an example to execute the pre-clearing procedure, the LED lamp unit 200-1 includes three primary color LED lamps, and the number of the three primary color LED lamps is equal to the selection signal group Ssg plus the clearing signal Sc. It is assumed that the clear signal Sc and the current command for controlling the blue LED lamp are on the same line, one of the select signals and the current command for controlling the red LED lamp are on the same line, the other select signal and the current command for controlling the green LED lamp are on the same line, and it is assumed that the current values of the three primary color LED lamps are simultaneously cleared (i.e., red, green, and blue lights are all cleared). When the pre-clearing procedure is executed, the first enabling signal Se1 is at the second level, the second enabling signal Se2 is at the first level, and the second enabling signal Se2 at the first level is divided into three groups of pre-clearing time intervals. The three groups of pre-clearing time periods respectively correspond to red light, green light and blue light of the three primary colors of LED lamps, and in the blue light pre-clearing time period, the clearing signal Sc is at a first level, so that the controllers 104-1 to 104-4 memorize the current value of the corresponding blue light of the LED lamps to be cleared. In the green pre-clearing period, another selection signal is the first level, so that the controllers 104-1 to 104-4 memorize the current value of the corresponding green LED lamp to be cleared. During the red pre-clearing period, one of the selection signals is at the first level, so that the controllers 104-1 to 104-4 memorize the current value of the corresponding red LED lamp to be cleared.

Then, after the controllers 104-1 to 104-4 complete the memory, the selection procedure is entered. At this time, the first enable signal Se1 is at the first level and the second enable signal Se2 is at the second level. Since the selection controller 104-1 executes the clear routine Cl, the selection signal group Ssg generates a signal "00" representing the action of the selection controller 104-1 performing the clear of the red, green and blue current values. Finally, the first enable signal Se1 and the second enable signal Se2 are both the first level, and the select signal group Ssg and the clear signal Sc are also both the first level, so as to complete the clear procedure Cl to clear the current values of the red, green and blue light in the row, so that the LED lamps of the red, green and blue light do not emit light. It should be noted that, in an embodiment of the present invention, the first level represents a high level, and the second level represents a low level, but not limited thereto. In other words, the control method of the present invention may be inverted low-level trigger control, and the circuit of the low-level trigger control can be derived from the circuits of the embodiments of the present invention, and will not be described herein again.

Fig. 2B is a block diagram of a light emitting device control module with reduced pin space according to a second embodiment of the present invention, which is combined with fig. 1-2A. The control module 100 'uses a second control unit 204' to control two sets of LED lamp units 200-1 '-200-2', and each LED lamp unit 200-1 '-200-2' includes a single-color LED lamp (i.e., each LED lamp unit 200-1 '-200-2' may include a white LED lamp or a blue LED lamp, etc.). The first control unit 104 ' of the first control module 10 ' includes two controllers 104-1 ' -104-2 ', and the driving module 102 ' includes two driving units 102-1 ' -102-2 '. The number and coupling manner are the same as those in fig. 2A, and are not described herein again.

Since each of the LED lamp units 200-1 '-200-2' includes a single-color LED lamp, the current command set Cig 'provided by the second control unit 204' includes a first current command Ci1 and a second current command Ci2 for respectively controlling the two LED lamp units 200-1 '-200-2'. The enable signal set Seg includes a first enable signal Se1 and a second enable signal Se2, and the logic signal set Slg 'includes a select signal set Ssg' and a clear signal Sc. Since the logic signal group Slg 'and the current command group Cig' share the same group line output of the second control unit 204 ', the selection signal group Ssg' and the clear signal Sc correspond to the first current command Ci1 and the second current command Ci 2. That is, the total number of the select signal group Ssg 'and the clear signal Sc is two, the logic signal group Slg' includes one logic signal, and 2 different states (0, 1) can be formed by the change of "0" and "1". Each state corresponds to one of the controllers 104-1 ' -104-2 ', so that a certain set of controllers 104-1 ' -104-2 ' can be selectively controlled by changing the state of the selection signal set Ssg '. Taking the example where the controller 104-1 ' is selected, if the second control unit 204 ' supplies the first current command Ci1 at this time, the controller 104-1 ' executes the write program Wr. If the second control unit 204 ' provides the logic signal group Slg ' at this time, the controller 104-1 ' executes the clearing procedure Cl. It should be noted that in an embodiment of the present invention, the detailed contents and control manner of the pre-clearing procedure, the selecting procedure and the clearing procedure in the embodiment of fig. 2B are similar to those in fig. 2A, and are not repeated herein.

Please refer to fig. 3A for a detailed logic block diagram of the controller of the present invention, and fig. 3B for a detailed block diagram of the controller coupled to the driving unit of the present invention, which are combined with fig. 1 to fig. 2B, and refer to fig. 3A and fig. 3B repeatedly. In the embodiment applied to the control module 100 of the first embodiment in FIG. 2A, the first control unit 104 includes four controllers 104-1 to 104-4 as an example. In addition, in order to clearly identify the source of the signal, the clear signal Sc and the current command for controlling the blue LED lamp are in the same line, and therefore the clear signal Sc and the current command for controlling the blue LED lamp are both replaced by the symbol IB. Since one of the selection signals is in the same line as the current command for controlling the red LED lamp, the symbol IR is used to replace the one of the selection signals and the current command for controlling the red LED lamp. The other selection signal and the current command for controlling the green LED lamp are both replaced by the symbol IG, since they are on the same line as the current command for controlling the green LED lamp.

It should be noted that, in an embodiment of the present invention, it is not limited that the current command for controlling the blue LED lamp should correspond to the clear signal Sc, and the current commands for controlling the red LED lamp and the green LED lamp should correspond to the selection signals IR and IG, which can be replaced with each other according to actual requirements. For example, but not limiting of, a current command to control a blue LED lamp and a green LED lamp may correspond to select signals IR, IG, and a current command to control a red LED lamp may correspond to clear signal Sc.

Each of the controllers 104-1 to 104-4 includes a logic circuit LG receiving a first enable signal Se1, a second enable signal Se2, a selection signal set IR, IG and a clear signal IB. Since the logic circuit LG inside each of the controllers 104-1 to 104-4 is substantially the same, FIG. 3A only shows the logic circuit LG inside the controller 104-1, and the rest of the controllers 104-2 to 104-4 are substantially the same as the controller 104-1.

The select signal sets IR, IG and the clear signal IB are inverted by the inversion gates to provide the inverted select signal sets IRB, IGB and the inverted clear signal IBB, respectively. The second enable signal Se2 provides the clear logic signals CR, CG, CB triggered by the upper edge after passing through the D-type flip-flop with the select signal set IR, IG and clear signal IB, respectively. The first enable signal Se1 and the clear signal IB provide the clear command SR and the reverse clear command SRB triggered by the top edge after passing through the D-type flip-flop. The selection signal groups IR, IG and the reverse selection signal groups IRB, IGB may constitute 4 different state signals, and the controller 104-1 generates the top edge triggered selection command CS by using the reverse selection signal groups IRB, IGB via an and gate and the first enable signal Se 1. It should be noted that the selection commands of the controllers 104-2 to 104-4 are derived from the signals IRB and IGB (IRB, IG; IR, IGB; IR, IG) shown in FIG. 3A, and are not described herein again.

The first enable signal Se1, the second enable signal Se2, the reverse erase command SRB and the select command CS provide the third enable signal Se3 to the driving unit 102-1 through the and gate, so that the third enable signal Se3 is at the first level (high level) when the first enable signal Se1, the second enable signal Se2, the reverse erase command SRB and the select command CS are all "1". When the driving unit 102-1 receives the enable signal Se3 with the first level, the driving unit 102-1 executes the write procedure Wr to adjust the driving currents Id1 Id4 in the driving current group Idg. The clear logic signals CR, CG, CB are respectively coupled to the first enable signal Se1, the second enable signal Se2, the clear command SR and the select command CS to provide the enable signal groups ENCR, ENCG, ENCB to the driving unit 102-1 via the AND gate. Therefore, when the first enable signal Se1, the second enable signal Se2, the clear command SR and the select command CS are all "1", if the clear logic signals CR, CG, CB are "1", the corresponding enable signal groups ENCR, ENCG, ENCB are the first level. When the driving unit 102-1 receives the enable signal groups ENCR, ENCG, ENCB with the first level, the driving unit 102-1 executes the clearing procedure Cl without providing the driving currents Id 1-Id 4.

It should be noted that, in an embodiment of the present invention, a logic circuit applied to the control module 100' of the second embodiment in fig. 2B is similar to the logic circuits in fig. 3A and 3B, which can be derived from the logic circuit LG in fig. 3A and 3B, and is not repeated herein. In addition, in an embodiment of the present invention, the logic circuit LG is not limited to fig. 3A and 3B, and for example, a logic circuit, a control hardware circuit, or a software program that can implement the control method of fig. 3A and 3B should be included in the scope of the present embodiment.

Fig. 4A is a block diagram of a driving unit according to the present invention, and fig. 2 to 3B are combined. In the present embodiment, each of the LED lamp units 200-1 to 200-4 of FIG. 2A includes three primary color LED lamps, and the first group of the controller 104-1, the driving unit 102-1 and the LED lamp unit 200-1 are taken as an exemplary schematic. Each of the driving units 102-1 to 102-4 includes three current adjusting circuits 102A to 102C (only 1 shown), and each of the current adjusting circuits 102A to 102C includes a current adjusting unit 1022, a first switching unit 1024, a first energy storage unit 1026 and a path switching unit 1028. The current adjustment unit 1022 is coupled to the second control unit 204 and one of the LED lamps (the red LED lamp 200A, the blue LED lamp, or the green LED lamp, in this embodiment, the red LED lamp 200A is coupled to the current adjustment unit) of the LED lamp unit 200-1, and receives one of the current commands in the current command set Cig (the red LED lamp 200A is received as the current command IR). The first switch unit 1024 is coupled to the current adjusting unit 1022, and receives a third enabling signal Se3 provided by the controller 104-1. The first energy storage unit 1026 is coupled to the first switching unit 1024 and the current adjustment unit 1022, and when the first switching unit 1024 is turned on, the first energy storage unit 1026 stores the driving voltage Vd. The path switch unit 1028 is coupled between the second control unit 204 and the current adjusting unit 1022, and receives the third enabling signal Se 3. Further, the function of the path switch unit 1028 is to turn off the path switch unit 1028 when the current adjustment circuits 102A to 102C of the path switch unit 1028 do not need to write the current command IR, so as to avoid that the current command IR is continuously consumed, which may cause the current to be shunted by the current adjustment circuits 102A to 102C that are writing the current command IR, and thus the current command is written at an incorrect current value, thereby solving the problem of insufficient brightness due to simultaneous driving.

When the third enabling signal Se3 is converted from the first level (for example, but not limited to, the lower signal level) to the second level (for example, but not limited to, the higher signal level), the path switch unit 1028 and the first switch unit 1024 are turned on. The current command IR flows to the current adjustment unit 1022 through the path switching unit 1028, and the first energy storing unit 1026 stores the driving voltage Vd for driving the current adjustment unit 1022 by the conduction of the first switching unit 1024. The driving voltage Vd may be obtained by the current of the current command IR flowing to the first energy storage unit 1026 through the first switching unit 1024, or the voltage of a node converted or divided by the current adjusting unit 1022 may be obtained by charging the first energy storage unit 1026 through the first switching unit 1024, or the external voltage may be obtained by charging the first energy storage unit 1026 through the first switching unit 1024. At this time, the current adjustment unit 1022 driven by the driving voltage Vd generates the red driving current Ida (the driving current Id1 includes driving currents for driving the red LED lamp 200A, the blue LED lamp, and the green LED lamp, and is herein indicated by the red driving current Ida) according to the current command IR. The red driving current Ida flows through the red LED lamp 200A to illuminate the red LED lamp 200A. The magnitude of the red driving current Ida controls the luminance of the red LED lamp 200A. When the red driving current Ida is larger, the luminance of the red LED lamp 200A is brighter, and when the red driving current Ida is smaller, the luminance of the red LED lamp 200A is darker (the same holds true for the control of the blue LED lamp and the green LED lamp).

When the third enabling signal Se3 is converted from the second level (for example, but not limited to, the higher signal level) to the first level (for example, but not limited to, the lower signal level), the path switch unit 1028 and the first switch unit 1024 are turned off. At this time, the current command IR cannot flow to the current adjusting unit 1022 through the path switching unit 1028, and the first energy storing unit 1026 cannot obtain energy through the first switching unit 1024, so that the first energy storing unit 1026 provides the remaining driving voltage Vd to drive the current adjusting unit 1022. When the path switch unit 1028 and the first switch unit 1024 are turned off, since the first energy storage unit 1026 still stores the driving voltage Vd, the stored driving voltage Vd still drives the current adjustment unit 1022, so that the current adjustment unit 1022 is still operating. Therefore, although the path switch unit 1028 and the first switch unit 1024 are turned off, the current adjustment unit 1022 still maintains the current value of the current adjustment unit 1022 before the path switch unit 1028 and the first switch 1024 are turned off, so as to maintain the brightness of the red LED lamp 200A.

It should be noted that when the first switching unit 1024 is turned off, the driving voltage Vd is gradually consumed. When the driving voltage Vd is consumed to disable the driving of the current adjustment unit 1022, the current adjustment unit 1022 can no longer control the brightness of the red LED lamp 200A. Therefore, although the control module 100 of the present invention is mainly applied to the display a using the frequency sweep (time division multiplexing) technology, the frequency of the third enable signal Se3 needs to be limited by the consumption speed of the driving voltage Vd (the frequency is determined by the recognition of the human eyes to the frame, and the frequency is not limited if the human eyes are difficult to recognize the difference of the brightness). That is, after the first switching unit 1024 is turned off and before the driving voltage Vd is consumed to the current adjustment unit 1022, the third enabling signal Se3 is switched from the first level to the second level as the best implementation, which can avoid the situation that the LED lamp units 200-1 to 200-4 cannot be controlled.

Referring to fig. 4A, each of the current adjusting circuits 102A-102C further includes an energy releasing switch Qr, and the energy releasing switch Qr is coupled between the first energy storage unit 1026 and the ground. The control terminal of the release switch Qr is coupled to the controller 104-1 and receives a release signal ENCR provided by the controller 104-1. When the energy releasing signal ENCR controls the energy releasing switch Qr to be turned on, the driving voltage Vd is released to the ground terminal through the energy releasing switch Qr, so that the first energy storage unit 1026 does not have energy and cannot drive the current adjusting unit 1022. Specifically, for example, but not limited to, when the red LED lamp 200A does not need to emit light or color mixture (for example, but not limited to, the color mixing of the LED lamp unit 200-1 only needs to color the blue LED lamp and the green LED lamp), the controller 104-1 provides the energy release signal ENCR to turn on the energy release switches Qr of the current adjusting circuits 102A to 102C of the red LED lamp 200A, so that the current adjusting units 1022 of the current adjusting circuits 102A to 102C cannot be driven. Thus, the red LED lamp 200A does not emit light.

Fig. 4B is a detailed circuit diagram of the current adjusting circuit according to the present invention, and is combined with fig. 2A to 4A. Taking fig. 4A as an example, the current adjusting unit 1022 in each of the current adjusting circuits 102A-102C (one of the current adjusting circuits 102A-102C is shown) includes a first transistor Q1 and a second transistor Q2, and each of the first transistor Q1 and the second transistor Q2 includes an input terminal X, an output terminal Y and a control terminal Z. An input terminal X of the path switch unit 1028 is coupled to the second control unit 204 and the input terminal X of the first switch unit 1024, and a control terminal Z of the path switch unit 1028 is coupled to the control terminal Z of the first switch unit 1024. The input terminal X of the first transistor Q1 is coupled to the output terminal Y of the path switch unit 1028, the output terminal Y of the first transistor Q1 is coupled to the ground terminal, and the control terminal Z of the first transistor Q1 is coupled to the output terminal Y of the first switch unit 1024 and one terminal of the first energy storage unit 1026. The input terminal X of the second transistor Q2 is coupled to one terminal of the red light lamp 20A, and the other terminal of the red light lamp 20A is coupled to the operating voltage Vdd. The output terminal Y of the second transistor Q2 is coupled to the ground terminal, and the control terminal Z of the second transistor Q2 is coupled to the control terminal Z of the first transistor Q1. The energy release switch Qr is coupled to one end of the first energy storage unit 1026, the control terminal Z of the first transistor Q1 and the control terminal Z of the second transistor Q2.

When the third enabling signal Se3 is switched from the first level (for example, but not limited to, a lower signal level) to the second level (for example, but not limited to, a higher signal level) to turn on the path switch unit 1028 and the first switch unit 1024, the current command IR flows to the first transistor Q1 through the path switch unit 1028, and the current command IR charges the first energy storage unit 1026 through the first switch unit 1024, so that the first energy storage unit 1026 stores the driving voltage Vd. When the voltage value of the driving voltage Vd rises enough to turn on the first transistor Q1 and the second transistor Q2, the driving voltage Vd turns on the first transistor Q1 and the second transistor Q2 to drive the current adjusting unit 1022. At this time, the turning on of the first transistor Q1 generates a current path from the input terminal X to the output terminal Y of the first transistor Q1, so that the current command IR flows from the input terminal X to the output terminal Y of the first transistor Q1. In an embodiment of the invention, the current adjustment unit 1022 uses a current mirror circuit, so that the operating voltage Vdd is applied to the input terminal X and the output terminal Y of the second transistor Q2 to mirror-generate the red driving current Ida corresponding to the current command IR. The red driving current Ida flows through the red LED lamp 200A to emit light, and the magnitude of the red driving current Ida controls the luminance of the red LED lamp 200A.

When the third enabling signal Se3 is converted from the second level (for example, but not limited to, a higher signal level) to the first level (for example, but not limited to, a lower signal level) such that the path switch unit 1028 and the first switch unit 1024 are turned off, the current command IR cannot flow to the first transistor Q1 through the path switch unit 1028, and the current command IR no longer charges the energy storage unit 1026, but if the energy release switch Qr is not turned on, the driving voltage Vd stored in the energy storage unit 1026 is not yet discharged. At this time, the energy storage unit 1026 still provides the stored driving voltage Vd to turn on the second transistor Q2. Therefore, the current adjustment unit 1022 can still generate the red driving current Ida flowing through the red LED lamp 200A by the operating voltage Vdd and the driving voltage Vd to maintain the brightness of the red LED lamp 200A.

When the energy release switch Qr is turned on, the remaining driving voltage Vd of the energy storage unit 1026 is discharged to the ground end through the paths of the input terminal X and the output terminal Y of the energy release switch Qr, so that the current adjustment unit 1022 is not driven, and the red LED lamp 200A does not emit light. Therefore, the energy storage unit 1026 can be charged by the current command IR to generate the driving voltage Vd, and then the writing program Wr of the first switching unit 1024 is turned off, so that the red LED lamp 200A can be controlled to emit light without providing the third enabling signal Se3 with the first level. And, the similar clearing manner of discharging the driving voltage Vd to the ground terminal can be provided by turning on the energy release switch Qr, i.e. the effect of the driving current adjustment unit 1022 can be stopped when the red LED lamp 200A does not need to emit light. It should be noted that, in an embodiment of the invention, the current adjusting unit 1022 is not limited to be implemented only in a current mirror structure. In other words, the current adjustment unit 1022 for generating the driving current according to the current command of the current command set Cig is included in the scope of the present embodiment.

Please refer to fig. 5A for a detailed logic block diagram of the second control unit of the present invention, and fig. 5B for a truth table diagram of the second control unit of the present invention, which are combined with fig. 1 to fig. 3B. In the present embodiment, which is applied to the control module 100 of the first embodiment in fig. 2A, each of the LED lamp units 200-1 to 102-4 includes three primary color LED lamps as an example. The second control unit 204 includes three buffer gates D1-D3, three switch units S1, S2, S3 and three current sources Ir, Ig, Ib, and each buffer gate D1-D3 includes an input terminal X, an output terminal Y and a control terminal Z. The input ends X of the buffer gates D1-D3 respectively receive level signals VIR, VIG, VIB, and the control ends respectively receive enable signals ENR, ENG, ENB. One end of each of the three switch units S1, S2, S3 is respectively and correspondingly coupled to the output terminals Y of the three buffer gates D1-D3 and the first control module 10, and the other end is respectively and correspondingly coupled to the three current sources Ir, Ig, Ib.

Referring to fig. 5B, when the enable signals ENR, ENG, ENB are at the second level and the switch units S1, S2, S3 are turned on, the current sources Ir, Ig, Ib are coupled to the first control module 10. At this time, the second control unit 204 provides the current command set Cig to the driving module 102 of the first control module 10 according to the current sources Ir, Ig, Ib, that is, the current sources Ir, Ig, Ib are the current command set Cig for controlling the brightness of the LED lamp module 200. When the enable signals ENR, ENG, ENB are at the first level and the switch units S1, S2, S3 are turned off, the current sources Ir, Ig, Ib and the first control module 10 are disconnected, and the signals are provided by the buffer gates D1-D3. At this time, if the level signals VIR, VIG, and VIB are at the first level, the buffer gates D1-D3 provide the first level signals to the first control unit 104 of the first control module 10, and if the level signals VIR, VIG, and VIB are at the second level, the buffer gates D1-D3 provide the second level signals to the first control unit 104 of the first control module 10. That is, the signals provided by the buffer gates D1-D3 are the logic signal group Slg. In addition, the second control unit 204 also provides the first enable signal Se1 and the second enable signal Se2 to the first control unit 104.

It is worth mentioning that the switching units S1, S2, S3 are turned on or off simultaneously to provide the same kind of signal source (current command set Cig or logic signal set Slg) in the same period. In addition, if each of the LED lamp units 200-1 ' to 102-2 ' in the control module 100 ' of the second embodiment of fig. 2B includes a single-color LED lamp as an example, the second control unit 204 only includes two buffer gates, two switch units and two current sources. The two current sources are respectively provided to the two driving units 102-1 'to 102-2' to respectively adjust the brightness of the single-color LED lamps in the two LED lamp units 200-1 'to 102-2'. The circuit structure of the second control unit applied to the second embodiment of fig. 2B is similar to that of fig. 5A, and the truth table can also be derived from fig. 5B, which is not described herein again.

Fig. 6 is a timing control waveform diagram of a light emitting device control module with reduced pin space according to the present invention, which is combined with fig. 1 to 5B, and refer to fig. 2A, 3, 4A, 4B, and 5 repeatedly. At times t 0-t 2, a selection routine Sl is provided, and the select signal group Ssg provides a "00" signal to select the first controller 104-1. Then, at time t1, the first enable signal Se1 is at the first level, so that the second control unit 204 provides the three primary color current command sets Cig (IR, IG, IB, the clear signal Sc and the current command for controlling the blue LED lamp are replaced by the symbol IB, one of the selection signal and the current command for controlling the red LED lamp are replaced by the symbol IR, and the other selection signal and the current command for controlling the green LED lamp are replaced by the symbol IG) at time t2, wherein the waveform height of the three primary color current command sets Cig is the magnitude of the current value to be written. At time t3, the second enable signal Se2 is set to the first level, so that the selected controller 104-1 starts to execute the write procedure Wr to write the current value of the current command set Cig into the driving unit 102-1. By time t4, the selected controller 104-1 has completed the write process Wr and switches the second enable signal Se2 to the second level. Then, at time t5, the first enable signal Se1 transitions to the second level, and the switch units S1, S2, and S3 are turned off without providing the current command set Cig, so as to complete the current value writing operation of the driving unit 102-1.

At time t6, the second enable signal Se2 transitions to the first level, causing the controllers 104-1 through 104-4 to execute the pre-clear procedure Clp. In the time period T1, the controllers 104-1 to 104-4 execute a current value pre-clearing program Clp of the blue LED lamps. At this time, the clearing signal Sc (which is the same line as the current command IB of the blue LED) is the first level, so that the controllers 104-1 to 104-4 memorize the current value of the corresponding blue LED lamp to be cleared. In the time period T2, the controllers 104-1 to 104-4 execute a current value pre-clearing program Clp of the green LED lamps. At this time, the other selection signal is the first level (the same line as the current command IG of the green LED) so that the controllers 104-1 to 104-4 memorize the current value of the corresponding green LED lamp and need to clear. Similarly, in the time period T3, the controllers 104-1 to 104-4 execute the current value pre-clearing program Clp of the red LED lamps. At this time, one of the selection signals is the first level (which is the same line with the current command IR of the red LED) and is the first level, so that the controllers 104-1 to 104-4 memorize the current value of the corresponding red LED lamp and need to clear. At time t7, second enable signal Se2 transitions to the second level to complete the pre-clear procedure Clp.

At time t 7-t 9, the selection program Sl is provided again, the signal set Ssg generates a signal of "00", and at time t8, the first enable signal Se1 transitions to the first level, so that the controller 104-1 is selected as the pre-execution clear program Cl. At time t9, the select signal group Ssg and the clear signal Sc are both at the first level to lock the current values of the corresponding red, green, and blue LEDs to be cleared. Finally, at time t 10-t 11, the second enable signal Se2 is switched to the first level to execute the clearing process Cl to clear the current value previously stored in the driving unit 102-1. After time t11, the controllers 104-2 to 104-4 respectively execute the write procedure Wr to the clear procedure Cl, which have waveforms similar to those of the controller 104-1 except for the waveforms of the selection signal group Ssg shown as "01", "10" and "11", which are not repeated herein. It should be noted that, in an embodiment of the present invention, the timing control waveform generated by the circuit in the embodiment of fig. 2B can be derived by referring to fig. 2B repeatedly to fig. 2A, fig. 3, fig. 4A, fig. 4B, and fig. 5, which are not described again here. In addition, in an embodiment of the present invention, since the "current value" and the "signal" of the IR, IG, IB are different in nature, the difference in waveform height of the IR, IG, IB is used to clearly classify the "current value" or the "signal". The waveform is at the first level, but the lower level is represented by "current value", and the waveform is at the first level, but the higher level is represented by "signal".

Please refer to fig. 7A for a package structure of a first embodiment of the first control module of the present invention, and fig. 7B for a package structure of a second embodiment of the first control module of the present invention. Fig. 7A corresponds to the package structure of the embodiment of fig. 2A, since the logic signal group Slg and the current command group Cig share the same group of line outputs of the second control unit 204, the selection signal group Ssg and the clear signal Sc correspond to the current commands of the three primary colors. Therefore, three of the pins of the first control module 10 are R, G, B, which can receive the current command set Cig or the logic signal set Slg. The enable signal set Seg includes a first enable signal Se1 and a second enable signal Se2, so that two pins of the first control module 10 are ENX and ENY, which respectively receive the first enable signal Se1 and the second enable signal Se 2. The power pins Vcc1, Vcc2 of the first control module 10 may be single or two, because the driving voltage of the red LED may be 2V, but the driving voltage of the blue LED and the green LED is usually higher than 3.8V. Therefore, the power pins Vcc1 and Vcc2 can use 2 different voltage values to drive different color LED lamps, respectively, so as to achieve the effect of saving power consumption of the first control module 10. However, if the power consumption is not considered, a single power pin may be used. Finally, the first control module 10 includes a ground pin GND connected to ground. Therefore, as shown in fig. 7A, the first control module 10 only needs 8 pins at most to satisfy the function described in fig. 2A.

Fig. 7B corresponds to the package structure of the embodiment of fig. 2B, because the control module 100 'controls two groups of LED lamp units 200-1' to 200-2 'by using a second control unit 204', and the logic signal group Slg 'and the current command group Cig' are output by using the same group of lines of the second control unit 204 ', the selection signal group Ssg' and the clear signal Sc correspond to the first current command Ci1 and the second current command Ci 2. Therefore, two pins of the first control module 10 ' are IN0 and IN1, which can receive the current command set Cig ' or the logic signal set Slg '. Since the first control module 10 'only drives the single color LED lamps, the first control module 10' only needs to use a single set of power pins Vcc. It should be noted that, in an embodiment of the present invention, the functions of the pins not described are the same as those of fig. 7A, and are not described herein again. IN addition, the present embodiment describes the situation where the single first control module 10 ' controls two sets of LED lamp units 200-1 ' to 200-2 ', so that the package structure includes 6 pins, but if the first control module only controls a single LED lamp unit, the package structure can omit the pins of IN 1. That is, in this case, the first control module only needs to include 5 pins to satisfy the above-described functions.

Fig. 8 is a block diagram of a display formed by a light-emitting device control module according to the present invention, and fig. 1 to 6 are combined together. The display a includes a light emitting matrix 2, a first control module 10, and a second control module 20. The light emitting matrix 2 includes a plurality of rows or columns of LED lamp modules 200, and the LED lamp modules 200 in each row or column are correspondingly coupled to the first control module 10. The second control module 20 includes a plurality of second control units 204, and the second control units 204 are coupled to the first control modules 10 in a row or a column. The display a drives and controls the first control module 10 and the second control module 20 to enable the first control module 10 to provide the driving current group Idg to control the LED lamps in the LED lamp module 200 to emit light. The second control module 20 controls the second control unit 204 to sequentially provide the control signal group Scg to the first control module 10 in a time-sharing and multi-task manner, so as to sequentially drive the first control modules 10 in one row or one column, and further control the LED lamp modules 200 in one row or one column to emit light. It should be noted that, in an embodiment of the invention, the first enabling signal Se1 provided by the second control module 20 may control all the first control modules 10 by the same signal source, and only the second enabling signals Se 20-Se 2n are provided to the first control modules 10 in a row or a column in sequence in a time-sharing and multitasking manner. In addition, as shown in fig. 8, a display a formed by using the circuit of the embodiment of fig. 2A is shown, and if the display a is formed by using the circuit of the embodiment of fig. 2B, it is similar to fig. 8 in the present application, and can be inferred from the descriptions of fig. 2A, fig. 2B and fig. 8, and will not be described again here.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.

Claims

1. A light emitting module control module with pin space saving, which controls an LED lamp module to emit light, the light emitting module control module comprising:

a first control module comprising:

the driving module is coupled with the LED lamp module; and

a first control unit coupled to the driving module; and

the second control unit is coupled with the first control unit and the driving module, provides a control signal group to the first control unit and provides a current command group to the driving module;

the second control unit selectively provides the current command set to the driving module or provides the logic signal set to the first control unit; when the enabling signal group is at a first level and the second control unit provides the current command group, the first control unit controls the driving module to execute a writing program to write a current value of the current command group into the driving module, so that the driving module adjusts the brightness of the LED lamp module according to the current value; when the enable signal set is at a first level and the second control unit provides the logic signal set, the first control unit controls the driving module to execute a clearing program to control the driving module to clear the current value according to the logic signal set.

2. The light-emitting device control module of claim 1, wherein the first control unit comprises a plurality of controllers, the driving module comprises a plurality of driving units, the LED lamp module comprises a plurality of LED lamp units, the number of the controllers, the number of the driving units and the number of the LED lamp units are the same, and the driving units are correspondingly coupled to the controllers and the LED lamp units.

3. The light-emitting device control module according to claim 2, wherein the enable signal group comprises a first enable signal and a second enable signal, and the logic signal group comprises a select signal group and a clear signal; the selection signal selects the corresponding controller, so that the selected controller executes the write program according to the current command set or executes the clear program according to the clear signal.

4. The light-emitting device control module with pin space saving of claim 3, wherein each LED lamp unit comprises at least one LED lamp, and the number of the at least one LED lamp corresponds to the number of the selection signal group plus the clear signal; when the first enabling signal is at the second level and the second enabling signal is at the first level, the first control unit executes a pre-clearing program, memorizes the LED lamp corresponding to the selection signal group when the selection signal group is at the first level, and memorizes the LED lamp corresponding to the clearing signal when the clearing signal group is at the first level.

5. The light-emitting device control module according to claim 4, wherein when the first control unit executes the clearing process, the selected controller controls the corresponding coupled driving unit to clear the current value according to the selection signal group or the clearing signal memorized as the first level by the pre-clearing process.

6. The light emitting assembly control module with pin space savings of claim 5, wherein each controller comprises:

a logic circuit for receiving the first enable signal, the second enable signal, the select signal group and the clear signal;

when the first enable signal and the second enable signal are at the first level and the clear signal is at the second level, the controller selected by the selection signal group provides a third enable signal to the drive unit correspondingly coupled to the controller, so that the drive unit correspondingly coupled to the controller executes the write-in program; when the first enable signal, the second enable signal and the clear signal are at the first level, the controller selected by the selection signal set correspondingly provides an enable signal set to the corresponding coupled driving unit according to the selection signal set or the clear signal memorized as the first level by the pre-clear program, so that the corresponding coupled driving unit executes the clear program.

7. The light-emitting device control module with pin space saving of claim 1, wherein the second control unit comprises:

at least two buffer gates, each buffer gate including an input terminal, an output terminal and a control terminal, the input terminal receiving a level signal, and the control terminal receiving an enable signal;

at least two switch units correspondingly coupled with the output ends of the at least two buffer gates and the first control module; and

at least two current sources are correspondingly coupled with the at least two switch units;

when the starting signal is at the second level and the at least two switch units are conducted, the second control unit provides the current command set to the driving module according to the at least two current sources; when the enable signal is at a first level and the at least two switch units are turned off, the second control unit provides the logic signal group at the first level or the logic signal group at the second level to the first control unit according to whether the level signal is at the first level or the second level.

8. The light-emitting device control module of claim 1, wherein each LED lamp unit comprises three primary LED lamps, and the first control module comprises eight pins and at least three pins for receiving current command set or logic signal set, two pins for receiving enable signal set, a ground pin and a power pin.

9. The light-emitting device control module of claim 1, wherein each LED lamp unit comprises a single-color LED lamp, and the first control module comprises six pins and at least two pins for receiving a current command set or a logic signal set, two pins for receiving an enable signal set, a ground pin, and a power pin.

10. A display, comprising:

a light emitting matrix, comprising a plurality of rows or columns of LED lamp modules, and a plurality of first control modules according to any one of claims 1 to 9 are correspondingly coupled to the LED lamp modules in each row or each column; and

a second control module coupled to the light emitting matrix and including a plurality of second control units according to any one of claims 1 to 9;

the second control module controls the plurality of second control units to sequentially drive the first control modules in a row or a column in a time-sharing multitask mode so as to control the LED lamp modules in the row or the column to emit light.