TW201026143A - LED controlling device, its driving chips and operation method - Google Patents

Abstract

A LED controlling device comprises: a microprocessor and a plurality of driving chips. The microprocessor is used for producing a mode control command and an identified signal. The driving chips connect at least one LED separately and form a serial arrangement to connect to the microprocessor. The driving chips receive the mode control command separately to enter a non-display mode and start to operate through the indication of the identified signal, and than receive the driving characteristic control command to adjust driving characteristic or output status information according to the LED error detection. Therein, the driving chips receive and transmit the identified signal through a serial method, and receive the driving characteristic control command and output the status information through a parallel method. Thereby, the present invention can achieve the purpose of controlling to operate in non-display mode without modifying the circuit substantially.

Description

201026143 VI. Description of the Invention: [Technical Field] The present invention relates to a light-emitting diode driving control device, a driving chip and an operating method thereof, and particularly to a light-emitting diode driving capable of controlling a non-display mode Control device and its driving chip and operation method. [Prior Art] In recent years, the research and development of light-emitting diodes has grown rapidly, because the light-emitting diodes have the advantages of power saving, long service life, high durability, and fast reaction turtle speed, so that the light-emitting diodes are The market is getting more and more attention ^ use. And based on the characteristics of the above-mentioned light-emitting diodes, the application of the light-emitting diodes is becoming more and more extensive, such as: home lighting, display panels, public construction, and even automotive electronics. We all know that the light-emitting diode must be driven by the drive element to make the case. In the aspect of the display panel, the LED driving control device generally connects the LEDs in a series manner and arranges them into a matrix state and then controls the controller, so that after the controller receives the image data, Corresponding instructions are generated for each of the driving elements to individually drive each of the beta light-emitting diodes, thereby achieving the function of displaying the entire image data. However, in the design of the driving component, it is only designed to have a clock signal pin (CLK), a sequence data input pin (SDI), a sequence of data output pin (SD0), and a latch enable. Pin (LE), an output enable pin (OE) and a number of drive voltage pins. Therefore, the driving component after the serial connection receives and transmits the display instruction with the image data output by the controller through the serial data input pin and the sequence data output pin, and then drives the respective connected lights according to the image data respectively. Diode. This is what is commonly referred to as the display mode of the display panel. 201026143 = In addition, in order to increase the function of the drive element (function under the formula), such as brightness adjustment or acquisition of each drive element (four) shape (when the error is required, the drive element is often set to receive more (four) electricity ^ two have The additional functions described, this will increase the b component of the drive components, and the cost will increase. The τ spoon is over, in order to solve this problem, there is currently

脳, 93〇, 679 design, so that it can achieve the function of non-display mode without increasing the original driver. However, in the whole architecture, all the driving components are connected in series by the serial data output pin to transmit the command = the body sequence of the last driving component in which the serial is connected. The output pin is connected back to the (four) device itself, and the iX wire is like the structure of the feedback device. So - to 'in the operation of a little car, its control command (four) depends on the acquisition is also orderly and serial output on this, the patent provides the structure of the light-emitting diode, its design in the hardware circuit On, (four) & two will r restrictions. In contrast, in the control element. In addition, for the design of the entire board; increasing the space of the feedback circuit, thus increasing the line: two disturbances, and resulting in a larger overall area. (4) The sleep of the line 1 [Invention] In view of the above, the technical problem to be solved by the present invention is that the structure of the optical diode driving control device and its driving element is well controlled and controlled by the u-solid LED driving. The operation and control of the device 5 201026143 11 does not need to add the driving components and control pin 11 feet, nor the structure design of the feedback circuit of the two friends, that is, ^ control device reaches u dba _ hair first - polar body drive 仃The purpose of controlling the display mode and non-display mode. ''', to solve the above problems, according to the present invention, one of the formula m and: = light: the polar body drive control, is used to perform - display; mode,,,, control of the mode, light-emitting diode The body drive control device θ, the micro processing unit and a plurality of drive wafers. Wherein, the micro-processing unit generates a display command with "image data", or is used to generate - connect = (4) commands and i recognize other signals. The driver chips are respectively connected to the light-emitting diodes' and form a series arrangement to connect the micro-processors. The driving chips respectively receive display commands to enter the display mode and drive the LEDs to display the shadows according to the display instructions; and the driving chips respectively receive the mode control commands to enter 'Shoulder mode, and by confirming the indication of the identification signal to confirm the start of the transmission 1 Γ receiving " 'scaling control order 驴 _ _ characteristics or according to 曰, ^ polar body error detection to output a status information. Furthermore, the drive chips receive and transmit the display command and the confirmation identification signal ^' in a θ-sequence manner and receive the transfer characteristic control command and the output state information in a parallel manner. In order to solve the above problems, the other aspect of the present invention provides a driving chip for a light emitting diode driving control device, which is an I display mode and a non-display mode, and includes: a shift buffer, a The shirt image data register, a drive current output port, a core control, an overnight device and a mode detection unit. The displacement buffer is serially connected between a sequence of data input pins and a sequence of data output pins, and transmits data in a sequence manner, wherein in the display mode, the displacement buffer 6 201026143 = receiving and transmitting - with - The display command of the image data, and the parameter is stored in the non-display mode, the displacement buffer is the receiving and transmitting number. The image data register is connected to the displacement buffer. The material is synchronously received according to the money: = the drive current output is used to receive the image in the display mode; and the second is the synchronized image data in the register. And receive an explicit =;:1 symbol ❹ driving the light-emitting diode. Core control single S stream output 埠:.2 =: control = to adjust the drive potential, image data 2:, lock enable pin, - output enable pin mode detection unit in === current wheel exit and core control unit. When the control command is controlled, the mode register generated by the micro processing unit is controlled, and when the wheel output pin is connected to the image resource command, the mode control generated by the multi-processing unit is controlled and Display mode of the heart of the heart control == for the turn of the second case, provide a kind of light 1 pole:,. The re-control device according to the present invention comprises a method for operating a micro-tact control device, the steps of the method comprising: first, and a plurality of driving chips, the operating processing unit generates a mold Whether the driver wafer receives the micro or not continues to execute the command. If the result of the determining step is ', if the determining step is:, W: driving at least-lighting dipole, non-displaying enter-non-displaying step is confirmed according to the 201026143 motion: signal indication provided by the money management unit Whether or not the driving chips are turned on, 1 causes the driving chips to be adjusted after the startup operation, or to adjust the driving characteristics or according to the square & & & 。 。 。. The driving chips are received at the end of the sequence and the age is determined, and the dynamic characteristic control command is received and the status information is output. In order to drive the second: 2 invention, in addition to the need to significantly change the light-emitting diode ^ hardware line, control the display mode and = product =: In addition to this, it is more effective to reduce the line, 隹The detailed description and the accompanying drawings of the present invention are for the purpose of the present invention, and the other objects and advantages of the invention are described in the following. Light two bribes (4) :=, and then through the corresponding operation method == mode and non-Yang Yang type control and operation.眚 ΐ 图 图 图 图 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本Ul, U2, ..., UN). The light-emitting diode device of the present embodiment can be applied to the display of the driver chip (m, U2, _., UN) to drive the light-emitting diode (10) (not shown). The driving characteristics of the winding drive ^ 8 201026143 f ... UN) are performed in the _ mode, or the state information of each driving chip, that is, U2, ..., UN) is obtained. The display unit 1 is used to generate one of the image data: a mode control command and a confirmation identification signal are generated in time. The first processing unit 10, along with the display command, further generates a (4) enabling money for the display mode, and the accompanying mode control is the round-out enable signal for the H-mode. The driver wafers (m, U2, ..., UN) are formed - in series and connected to the micro-processing unit it H). And the driver chip (m, U2, ..., UN) has a sequence of data input pins (SDI_1, SDI_J2, ..., SDi-N), - sequence data output pins (SDO_l, SD〇_2, ... , SD〇-N), a flash lock enable pin (LE_1, LE_2, ..., LE_N), an output enable (OEJ, 〇e_2, ..., OE-N) and - clock signal pin ( CLKJ, CLK-2, ..., CLK_N). Wherein 'between the respective driving chips (Ub, U2, ..., UN), the serial data input pin sDj_丨 of the driving chip U1 is connected to the micro processing unit 1〇, and the serial data output pin SDOJ of the driving chip U1 is The serial data input pin SDI_2' connected to the driving chip U2 is similarly pushed so that the respective driving chips (ΙΠ, U2, ..., UN) are connected in series with each other, and each driving chip (Ul, U2, ..., UN) The respective sequence data input pins (SDIJ, SDI-2, ..., SDI_N) are also serially connected to their respective sequence data output pins (SDO-1, SDO-2, ..., SDO-N) to form a sequence. Data transmission path (not shown). The sequence data transmission paths of the respective drive chips (U1, U2, ..., UN) are connected in series to the microprocessor unit 10. However, it is worth noting that with the design of the present invention, regardless of any 201026143, the ☆ TJ Becko output pin SD〇-NS can be regarded as invalid (Nuln does not need to be connected back to the micro-processing unit 10 to form a second=microprocessing unit). There is no need for additional force == ΐ上: Compared with the square ^ ^ reduce the area occupied by the line (four), - the overall expansion of the real (10) gamma - also in each (four) day and day,

3, ..., bribe) the question lock enable pin (LE BU LEJ, for, transfer pin, and can control the transmission direction, and this function ^ pi lock enable pin (LEJ, foot 2,. .., LE called the function is like the general programmable input / output _ 1 coffee) pin function. And drive the chip (m, U2, _ = each S = lock enable pin (LEJ, LE_2, .. ., le_n)M in the micro processing unit 10. # Thus, in the display mode, the driving chips 1, U2, ..., UN) of the present embodiment are received through the respective sequence data transmission paths in the order 4 manner. Transmitting the display command 'and receiving a latch enable signal output by the microprocessor unit 70 10 in parallel by respective latch enable legs _ (1, LE-2, ..., LE_N) for synchronization The operation of the image data; in the non-display mode, the driving chips (U1, 2, ·, UN) of the present embodiment transmit the identification signals through the serial sequence through the respective serial data transmission paths, and transmit the respective latches through the respective latches. The enable pin, LE_2.....LE-N) receives the drive characteristic control command and output status information in a parallel manner. " In addition, in the architecture design, the drive output (Ul, U2, ..., UN) each output enable pin (OEJ, OE-2, ..., OE_N) timely pulse

201026143

f :, 1:?, CLK-2, ..., CLK-N) is for the wheeling action pin, and 'and is connected to the microprocessor unit 1 in a sub-connected manner. A, j, 0E-2, ..., 〇E-N) are used to receive the display of the 7F analog red or the output of the display mode. The clock signal pin (CLKJ, CLK 2, CLK-N) 疋 receiving the micro-processing unit 1 〇 provides the moment for each driver (m, U2, .= the technology should be able to understand the role of the clock signal And the principle, the following will be described. ^ Dan, therefore, based on the structure of the above-mentioned LED driving control device, when the driver chip (ΙΠ, U2, ..., UN) is not receiving the mode control When the command is entered, the preset display mode is entered, and the respective connected light-emitting diodes are activated according to the display command to display the image data. In the display mode, the operation flow and the functions of the feet are as follows. First, the respective serial data transmission paths of the driving chips (U1, U2, ..., UN) receive and transmit display instructions in a sequential manner; after the display has been transferred from the driving wafer U1 to the driving wafer UN, "" The latch enable pin (LEJ, LE-2, ..., LE_Ν) will receive a latch enable signal outputted by the micro processing unit 10 in parallel to perform the action of synchronizing the image data; 'The respective output enable pins (ΟΕ 1. ΟΕ-2, ..., ΟΕ-Ν) is a trigger for receiving the output enable signal of the display mode in a parallel manner to drive the LED to display the synchronized image data. This is generally called The operation flow of the display mode. On the other hand, when the drive chip (Ul, U2, ..., UN) receives the mode control command, it enters the non-display mode' and confirms the start operation by confirming the indication of the identification signal. The receiving drive characteristic control command is used to adjust a driving characteristic or to output a status information according to the LED detection error. In the non-display mode, the operation flow and the function of each pin are as follows: 'Driver chips (ΙΠ, U2, ..., _ each of the output enable pins (OEJ, OE-2, ..., OE-N) to receive the non-display mode read in parallel (four) can be money, to confirm The fresh (four) enabling pin (LE_1, LE-2.....LE-N) is for inputting chat or outputting the pin; in addition, driving the chip ΟΠ, U2, ..., their respective sequence data Transmission path to receive and transmit confirmation identification And each driver chip (Ul, U2, .., UN) will confirm whether to start the operation according to the confirmation identification signal. When the driver chips (U1, U2, ..., UN) operate, the respective latches The lock enable pin position, LE 2, ..., lE-N) is to receive the drive characteristic control command and the output state information in a parallel manner. Gu-二卜ΪDrive chip (ΙΠ, U2, ..., _ According to the non-.,, the output mode of the non-mode is enabled (〇 _ _ 〇 e_2, ..., 〇 E) (LEJ, LE-2, ..., z please be the input action = or ΐ output The fairy pin is also used to judge the current non-display mode π degree gain control mode or an error detection mode. When judging the target Γ Ι brightness gain control mode, then the flash lock enable pin (LEJ, :2..., LE-N) is the input action pin; * when judging that it is currently wrong ^ A 3 type The flash lock enable pin (LEJ, LE-2, ..., LE N) is the output action pin. ~ Finally, if the current non-display mode is for the brightness gain control mode, each driver chip (U Bu U2, ..., UN) will pass the flash lock enable pin (LE 1, TF 9 - , ··. , LE_N) to receive the drive characteristic control command from the micro processing unit 12 201026143 ίο; if the current non-display mode is the error detection mode, then each of the drive chips (U1, U2.....UN) will pass through The flash lock enable pin (LEJ, LE-2, ..., LE-N) feeds back information to the microprocessing unit 10. And the status information referred to herein may be, for example, information on the error state of the light-emitting diode detected by each of the driving chips (Ul, U2, . . . , UN). It can be clearly seen from the present embodiment that the present invention mainly uses the flash lock to enable the foot (LEj, LE_2, ..., le milk) in the non-display mode.

To receive the drive characteristic control command and output status information, and input and parallel output. To further illustrate the architecture of the driver chip used in the present invention, reference is made to the second ®, which is a block diagram of an embodiment of a driver chip for a light-emitting diode (four) control device of the present invention. As shown, the present embodiment is illustrated by an architecture that drives the chip u. The driving chip u of this embodiment includes: a buffer 21, an image data register 22, a driving current source, a core (four) single 424-multiplexer 25, and a mode detection early 26. The 'displacement buffer 21 is connected in series between the -sequence data input pin SDI and the -sequence data output pin SDq, and is the t-transfer data. The image data register 22 is connected to the displacement buffer

Two-pin two-position Γ25 is connected to a flash lock enable pin LE, -output to the pin OE, sequence data input pin sm, image data register I electric 23, core, unit 24 and _ test unit The mode detecting unit 26 is connected to the r2=r data input device and the mode_unit 26 is reconnected to receive a clock provided by the micro processing unit 10; 13 201026143 is the operating clock. When the mode 僧, 二二二, 丁 to the sequence data input pin SDI, the 侦测 type detection early 兀 26 is the receiving display finger 25 to connect the flash lock enable pin LE to the completion of the work 11 will be output enable Feet. E is connected to the driver 22 and belongs to the display mode in a switching state. do not . In this case, in the explicit mode, the displacement is slowly screaming. 1 曰 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = If the display of the material is not commanded, it will also be stored. The muzzle is connected. Because the image data is temporarily crying a, the switch is connected to the lock enable pin Le= = the microprocessor unit is received! The output of the second two= shadow is synchronously received by the _lock enable signal to receive the displacement buffer. The heart drive f is the output material 23 is connected to the scene image to receive the synchronized image data, and = 23 has passed the multiplexed crying The field is driven by the current output, so the H (4) is connected to the output enable pin 〇E, and the output 23 is received by the microprocessor unit 1. When the display mode enable signal is displayed, it is displayed by To enable money _ send (four) light-emitting diodes. Borrow: Operation. Among them, the drive current output 璋23^ is used to connect the pin and the parent drive pin 〇1^ if the diode. When the driving crystal U D of the embodiment is used to drive 16 LEDs, the driving current is 14 and the output 23 is connected to 16 driving pins DnVe. In the other two cases, when the light-emitting diode drive control device is in the micro-location, a mode control command is generated to give the lock enable pin LE and the output enable position 0, and the drum-representation is given to the output. When the pin is enabled, the mode detecting unit 26 === = the mode of the enabled pin is transmitted, and the multiplexer 25 is controlled to the core control unit 24, and the mode is detected. The measuring unit 26 then confirms the multi/..., the input action or the output two=5 according to the non-form output enable signal, and the lock enable pin is a non-display type. The button-switching unit 26 is based on the enable signal to confirm that the multi-device 25 is the driver pin 2 and the second is 亮度 is the brightness two = 贞 function. Among them, the technical means that the technician should lock the mode to the output mode may be, for example, an output enable signal that does not display the non-display mode _: early 0 is determined by the mode detection unit 26 Display mode ', port one mark s signal, to

When the number is, for example, it is round 2; b tiger (binary! signal) is used as the digit I to output the enable pin to the digital mode; otherwise, the ab (a carry signal) to represent 201026143 ί For Ϊ f: benefit control mode. Of course, this is only a design aspect, and it is not intended to limit the invention. The second scratch, and in the non-display 7^ mode, the 'displacement buffer 1121 will pass through the sequence shell;: the foot position sm to receive the micro-processing unit (7) unfunded f-sequence output pin position SDO to transmit the wheel to understand the Shaoyuan - a driver chip. It is worth mentioning that this 3 ϋ is to receive the drive characteristics through the _ enable pin L Ε: two == information' and between the different drive chips, because the lock enable pin is connected in parallel, so Month h*& the other drive characteristic control command and = one: move, use, and therefore: match; know the 隹 隹 '隹:: to confirm the current transmission of the identification signal to the drive: public and then decide Whether the multiplexer 25 is to be activated or not to perform the design of the green characterization signal can be described as follows: The following is assuming that the illuminating diode driving control device is a chip designed with Ο input pins. In addition, for the sequence data, the micro-processing unit 1 accountant ^ register (not shown) ° another % λ 1 kg produced indeed 3 tolerate the identification signal is for example set === money, and called the financial (four) Lai For each string register = 彳Ξ this 'when the first driver chip determines that 16 of them Ϊ 1 11 is converted from a digital G signal to a digital 1 signal f, J # (if a working clock is θ triggered A digit of 1. ~ Perform 16 operating clocks). When the 201026143 first digit 1 signal of the identification signal has been transmitted to the first register in the second driver chip, the first register in the original driver chip is converted by the digital 1 signal. It is a digital chirp signal, so the __ characteristic control command and the output state information control right belong to the second driver chip at this time. And so on, to complete the design of the drive characteristic control command and the output of the present invention. In this case, the design is similar to the recognition of the machine number as the phase wire (10) is transmitted to each of the moving chips' and waits until the driver chip indicated by the flag can perform the relevant operation, and accordingly receives the drive characteristic control command and output. Status information. Then, in the non-age mode, the core control unit is connected to the _ enablement control unit 24 to receive the characteristic control command transmitted by the flash lock enable pin LE to adjust the drive. The current wheel is turned out to be a 1st lock enable leg (4) to transmit back and forth to the micro-processing unit 1G. Wherein, the core control unit 24^^= includes a -four (four) memory 241, which is driven by the (four) memory step driving current output 埠23, and is temporarily transferred back to the micro processing unit. Status information measured. The 1G light-emitting diode error detection # H -^ τ ^ ^ ^ # ζ ^ in the light-emitting diode driving control device is a picture of the current image, as shown in the figure, this real-off provides the set (four) The method is described by each driving chip controlled by the LED driving, and the driving pin is matched with the cross-port and the 4th cap will be sent first. The polar body driving control is difficult to preset. The input mode is 17 201026143 into the display mode. (S301), that is, a display instruction for generating a small image data by the micro processing unit is given to each of the driving chips. Here, the same two-chip wafer continuously judges whether or not the second control command generated by the micro processing unit is received (S303). If the result of the determination in the step (S303) is NO, the current mode of operation is normal, and the operation continues in the display mode, and the light-emitting diode is driven by the drive chip to display the image data (S305). ^ 曰曰 and if the result of the step (S303) is YES, it means that the abnormal condition 'Yes' will enter the so-called non-;

The chip is based on the mode of micro: (S309). This embodiment is exemplified by a luminance gain control mode and a miss rank detection mode. When flying 1 determines that the non-display mode currently entered belongs to the brightness enhancement mode, the corresponding switching operation will be performed in the driving chip (2: the embodiment in the figure), and it is judged whether Receive confirmation identification: 唬j indicates (S311). If the result of the determination in the step (S311) is YES, the drive wafer of the table = destination has received an indication of the confirmation identification signal to be activated. Thus, the driving chip can receive the driving characteristic control command to adjust the driving characteristics (S313) to increase or decrease the brightness of the light emitting diode. On the other hand, if the judgment result of the shackle=311) is No, it means that the indication of the acknowledgment number has not been received yet, and the drive characteristic control command is not required to be executed until the instruction of the acknowledgment identification signal is received, the drive is started. The chip will work. In addition, when the judgment result of the step (8) 09) is that it is determined that the currently entering the caller is in the error detection mode, the corresponding switching operation is also performed in the driving chip (as in the embodiment of the second figure). Said). And 18 201026143 Similarly, it is judged whether or not the confirmation identification signal is received (S315). If the result of the determination in the step (S3i5) is YES, it indicates that the first two: the moving chip has received the instruction to confirm the identification signal and can start the operation. Therefore, the driving chip can transmit the error status information to the micro processing unit according to the LED error detection (S317). On the other hand, if the step (8315) is judged to be no, it indicates that the indication of the confirmation identification signal has not been received yet, and the error state information of the detected light-emitting diode is not output until the indication of the confirmation identification signal is received. After that, the driver chip operates. 1 ❹ ❹ Finally, after the execution of the step (S313) or the step (S317), it is judged whether or not a pop-up control command generated by the micro processing unit is received again (S319). Among them, the jump mode control command only θ corresponds to the design originally designed to indicate the non-display mode = control command. If the _ result of the step (S319) is no, it indicates that there is still a related operation that the driving chip has not performed the non-display mode, and the identification signal has not been transmitted to the last driving chip, so the step (8) 19) is executed, and the special receiving and jumping is performed. Mode (4) instructions. In the meantime, if the result of the step ((10)) is YES, it means that all the driving blades have been executed in the non-display mode, so the mode controller will be switched to switch the mode. S303) and its subsequent steps. Therefore, the operation of the illuminating diode (4) device of the gamma step is provided; and the present embodiment provides a timing waveform diagram of the embodiment of the separate mode of the present invention. For example, the state of the pin in the _ driving chip is explained, and the operation can be roughly divided into three sections, namely, the interval (1), the interval (2), and the zone in the interval (1).绿中19 201026143 The mode control command generated by the processing unit (delivered by the latch enable pin LE and the output enable pin OE) and the output enable signal of the non-display mode (transmitted by the output enable pin OE) The mode mode of the current non-display mode is determined. In this embodiment, when the output enable pin OE is a digital chirp signal, the brightness gain control mode is used, so that the output enable on the timing waveform graph can be found. The pin position OE is in the state of the digit 0 signal when entering the interval (2). Then the 'sequence information input pins SDIJ, SDI_2, ..., SDlji respectively refer to the positions of different driving chips (N). Since the sequence information input pin between different driving chips forms a serial connection 'and is a sequence transmission confirmation identification signal, the sequence information input pin SDI_i of different driving chips can be found on the timing waveform of the interval (2), SDI_2,..., SDI-N are sequentially converted to the state of the digital chirp signal, and will continue to have N CLKs respectively. When the sequence information input pin is in the state of digit 1 k, it means that the current Which driver chip is used to receive the indication of the 彳 彳 § , so that the corresponding driver chip can be connected to the gain value for adjusting the light-emitting diode. The lock enable pin LE is connected in parallel to the micro processing unit, so in the interval (2), the flash lock enable pin LE is sequentially used to receive the gain value of each drive chip. Finally, in the interval (3), This is because it is true that the signal has been transferred to the last driver chip, and all the chips have been executed in the brightness gain control mode, so the mode jumps out of the mode control command to jump out the brightness gain. Control and then refer to the fifth® '20 201026143 for operating the wrong side mode of the present invention. · The timing waveform diagram is applied. As shown in the figure, the timing waveform diagram of this embodiment is operated by the f-axis wafer. (Iv) the error condition mode while substantially the same as the "four ⑨ in FIG operating state of gain control mode, and also in operation f a t the same purpose. The only difference is that the output enable pin sinks on the top ten and the digital signal represents the error detection mode, so the output enable pin on the timing waveform can be found in the entry interval (7). The state of the digit 1 (four). Secondly, since this embodiment is said to be in the error detection mode, the flash lock enable pin is in the interval (2) (4) is the sequential output of each drive crystal error w state information. "The invention is improved in the light-emitting diode drive control device and its dynamic batch structure, and the operation is performed by the entire light-emitting diode drive = relay operation and (4) 'to increase the drive components and The pin of the controller does not need to reserve or increase the design of the feedback circuit.

The Si 3 optical drive control device achieves the purpose of controlling the display mode and the non-display mode. In this way, the 驱动 body drive control device is used (4): it is compact and flexible in application. As described above, it is only the details of the specific embodiment of the present invention. %== The change or modification of the light can be covered by the simple description of the figure. The first round is the light-emitting diode drive of the present invention. The second embodiment of the present invention is a block diagram of an embodiment of the present invention. The first diagram is a flow chart of an embodiment of the operation method of the LED driving control device of the present invention. The fourth diagram is a timing waveform diagram of an embodiment of the present invention operating in a luminance gain control mode; and the fifth diagram is a timing waveform diagram of an embodiment of the present invention operating in error mode. Steam [Main component symbol description] Micro processing unit 10 Displacement buffer 21 Image data register 22 Drive current output 埠 23 Core control unit 24 Extended register 241 Multiplexer 25 Mode detection unit 26 ❹ Clock signal pin CLK, CLKJ, CLK_2, CUC_N drive pin Drive

Ask the lock enable pin LE, LE_1, LE_2, LE N

Turn-out enable pin 〇E, 〇Ε_1, OE-2, 〇E N

Sequence data input pin SDI, SDI_1, SDI_2, SDI_N Sequence data output pin SDO, SDO_l, SDO_2, SD〇__N Drive chip U, U1, U2, UN-22

Claims (1)

201026143 ^ VII. Patent application scope: 1. A light-emitting diode driving control device is for controlling a display mode and a non-display mode, and the LED driving control I includes a processing unit, which is generated a display command with one image data, or a mode control command and a confirmation identification signal; and a plurality of driving chips respectively connecting at least one light emitting diode and forming a series arrangement to connect the micro processing unit; Wherein the '5 hai drive chip sets respectively receive the display command to enter the display mode, and according to the display command, drive the light-emitting diode ♦", the member shows the image information, and the drive chips are respectively received The mode control command enters the non-display mode, and confirms the startup operation by the indication of the confirmation identification signal to receive a driving characteristic control command generated by the micro processing unit to adjust a driving characteristic or according to the LED Error detection to output a bear information; ~, Q, wherein the driver chips are serial And transmitting the received display instruction and the identification acknowledgment signal, and tied in parallel to receive the driving mode characteristic control instruction and round out the status information. [2] The LED driving control device of claim 1, wherein the driving chips respectively comprise: a sequence data input pin; a sequence data output pin, serially connecting the sequence data input pin Bits are formed to form a sequence of data transmission paths, and the sequence data transmission paths of the driver chips are connected to each other to be connected in series to the micro processing unit, wherein the sequence data transmission path transmits the display instruction in the display mode system 23 201026143 And in the non-display mode, the confirmation identification signal is transmitted; and the lock is caused by the bidirectional transmission pin, and the flash lock to the pin position of the driving chips is connected in parallel to the micro processing In the display mode, the lock enable pin receives the flash lock sync signal output by the micro unit to synchronize the image and receive the drive characteristic in the non-display mode. Control the buckle or output the status information to the microprocessor unit.发光 % Patent _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4. The light-emitting diode driving control device described in item 2 of the patent application scope--the processing unit of the processing unit is stepped to generate an output enable signal of the I display mode, and the control command step is accompanied by the mode. Generates an output enable signal for the non-display mode. ° The light-emitting diode drive control device 所述 described in claim 4, wherein the drive chips respectively comprise: a turn-off enable pin, in which the output enable signal is triggered, Receiving the display mode to drive the light emitting diode 'Use the job f-〗 lock enable position is the image data of the rider's action pin after the heart is synchronized; the output enable pin is connected in the non-display mode (4) non-display supplement output enable letter The one-time signal pin bit receives the pulse signal provided by the micro-processing unit as the operating clock of the driving chips. The illuminating diode driving control device 24, 201026143, wherein the driving chips are further determined according to the output enable signal of the non-display mode to determine that the non-display mode is a brightness gain control mode or An error detection mode. 7. The illuminating diode driving control device of claim 6, wherein when the non-display mode is the brightness gain control mode, the 5 Hz lock enable pin is the input action pin. When the non-display mode is the error detection mode, the latch enable pin is the output action pin. 8 ' 参 如 如 凊 凊 凊 凊 凊 如 如 驱动 驱动 驱动 驱动 驱动 驱动 δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ δ Connected between a sequence of data input pins and a sequence of output pins, and transmits data in a sequential manner, wherein in the display mode, the displacement buffer receives and 1 special wheel of the image data (4) Age, and store the image data 'and in the display mode', the displacement is slow (four) is received and the Lu transmission wheel confirms the identification signal; = image data temporary storage 11, is connected to the displacement buffer II ' used in the 1 In the Γ mode, the image data is synchronously received according to the flash lock synchronization signal; :::: 轮 埠 'in this display mode, is used to receive the: display, display, and the buffer in the material register The image data is driven by the triggering of the turn-off enable signal of the one-two non-mode to drive the light-emitting diode; a core control 特性-characteristic and i, in the non-display mode, receiving the drive king-made private order to adjust The driver The output of the stream output 25 25 201026143 a f ' ί back to the state information of the LED detection error; a multiplexer 'connection 1 lock enable pin, the output enable pin, the image a register, the clear test material and the core control unit; and a pull-type unit, when the wire is connected to the mode control command generated by the processing unit, the charm touches the I li to connect the lock enable pin to the Lin (four) temporarily suppresses, and connects the professional foot can be connected to the turbulent current. In the case of receiving the micro-processing, the singular unit is controlled, and the multi-n will be locked. The enable pin is connected to the core control unit, and the multiplexer provides the latch enable pin as an input or output function according to the input signal of the non-display mode. 9. The driver chip of claim 8, wherein the multiplexer further confirms the startup operation via the indication of the confirmation identification signal in the non-display mode. 10. The driver chip of claim g, wherein the latch enable pin receives the latch sync signal in the display mode, and receives the drive characteristic control command in the non-display mode or Output the status information. 11. The driver chip of claim 1, wherein the core control unit further comprises: an extension register for temporarily storing a gain for adjusting a driving characteristic of the driving current output 埠The value, and the status information of the backhaul LED detection. 12. The driving chip of claim 9, wherein the detecting 26 201026143 mode unit further determines that the non-display mode is a brightness gain control mode or an error detection according to the output enable signal of the non-display mode. Measurement mode. 13. The driving chip of claim 12, wherein when the non-display mode is the brightness gain control mode, the detecting mode unit controls the multiplexer to provide the latch enable pin as an input function. When the non-display mode is the error detection mode, the detection mode unit controls the multiplexer to provide the latch enable pin as an output. 14. The driving chip of claim 9, wherein the driving current output is connected to at least one driving pin, and each of the driving pins is connected to one of the LEDs. 15. The driving chip of claim 9, wherein the displacement buffer and the mode detecting unit are connected to a clock signal pin for receiving a clock signal as a working clock. 16. A method of operating a light-emitting diode driving control device, the driving control device comprising a micro processing unit and a plurality of driving chips, the method of the method comprising: determining whether the driving chips receive the micro-processing unit a mode control command; if the result of the determining step is no, continuing a display mode to drive at least one of the light emitting diodes; if the result of the determining step is yes, then controlling to enter a non-display mode; In the mode, further confirming whether the driving chips are 27 201026143 according to an indication of the confirmation identification signal provided by the micro processing unit, so that the driving chips respectively receive the micro processing unit after starting the operation. Generating a driving characteristic control command to adjust a driving characteristic or output a state information according to the LED detection error; wherein the driving chips receive and transmit the confirmation identification signal in a serial manner, and Parallel mode to receive the drive characteristic control command and output the state News. 17. The method of operating a light-emitting diode driving control φ device according to claim 16, wherein in the display mode, the driving chips are based on a one-to-one image data generated by the micro processing unit. An instruction is displayed to drive the light emitting diode. The method for operating the LED driving control device of claim π, further comprising: after entering the non-display mode, according to an output enable signal of a non-display mode provided by the micro processing unit Determining the mode of the non-display mode; and after adjusting the driving characteristics or outputting the status information, determining whether to receive a bounce mode control command generated by the processing unit to confirm whether to skip the non-display mode. The light-emitting diode driving control operation branch mentioned in Item 18 of the patent scope of the medium μ, if the towel touches the display material is one bright two, the benefit control, the mode, then the day-to-day solar film is started after the operation The drive characteristic is adjusted by adjusting the drive characteristic control command. #署: The operating method of the LED driving control described in the 18th patent range, wherein if the non-display mode is determined to be a wrong mode, then the driving chips are respectively activated after the operation of the system 28 201026143 according to the illuminating Diode error detection to output the status information. Φ 29