WO2020113825A1 - 显示驱动电路的斜插保护系统及斜插保护方法 - Google Patents
显示驱动电路的斜插保护系统及斜插保护方法 Download PDFInfo
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- WO2020113825A1 WO2020113825A1 PCT/CN2019/075612 CN2019075612W WO2020113825A1 WO 2020113825 A1 WO2020113825 A1 WO 2020113825A1 CN 2019075612 W CN2019075612 W CN 2019075612W WO 2020113825 A1 WO2020113825 A1 WO 2020113825A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
Definitions
- the invention relates to the field of display technology, and in particular to an oblique insertion protection system and oblique insertion protection method for a display driving circuit.
- LCD liquid crystal displays
- other flat display devices have been widely used in mobile phones, TVs, and individuals due to their advantages of high image quality, power saving, thin body, and wide application range.
- Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream in display devices.
- liquid crystal display devices which include a liquid crystal display panel and a backlight module.
- the working principle of the liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates.
- the liquid crystal molecules can be controlled to change the direction by energizing or not, and the light of the backlight module Refracted to produce a picture.
- the liquid crystal display panel also needs to be driven by an external driving circuit.
- the external driving circuit generally includes: a printed circuit board (Printed Circuit Board (PCB) timing control chip (TCON), power management chip (Power manage IC), and level shift chip (Level Shift), etc., where the timing control chip is mainly used for low-voltage differential (Low-Voltage Differential Signaling (LVDS) signal is converted into a Mini-LVDS signal with a low amplitude transmission frequency and a high clock signal for driving a liquid crystal panel.
- the power management chip is mainly used to generate various voltages for driving a liquid crystal display panel, and the level shift The chip mainly boosts the clock signal, so that the voltage of the clock signal meets the driving requirements of the display panel.
- PCB printed circuit board
- An object of the present invention is to provide an oblique insertion protection system for a display driving circuit, which can prevent the display driving circuit from being burned due to the oblique insertion, protect the display driving circuit and improve the fault tolerance of the manufacturing process.
- the object of the present invention is also to provide an oblique insertion protection method for a display drive circuit, which can avoid the display drive circuit from being burned due to the oblique insertion, protect the display drive circuit and improve the fault tolerance rate of the manufacturing process.
- the present invention provides an oblique insertion protection system for a display driving circuit, including: a first circuit board and a second circuit board;
- the first circuit board is provided with a detection control module, an output module electrically connected to the detection control module, and a first connection module electrically connected to the detection control module; the second circuit board There is a second connection module for mating connection with the first connection module;
- the detection control module includes a first pin for outputting a detection signal, a second pin for receiving a detection signal, and a third pin for outputting a protection signal;
- the first connection module includes a first feedback pin connected to the first pin and a second feedback pin connected to the second pin; the second connection module includes a third feedback pin and A fourth feedback pin electrically connected to the third feedback pin;
- the first feedback pin, the third feedback pin, the fourth feedback pin, and the second feedback pin are connected in series to form a transmission loop, and the detection signal passes
- the transmission loop returns to the second pin, the third pin has no signal output, and the output module works normally;
- the first connection module and the second connection module are inserted obliquely, the first feedback pin, the third feedback pin, the fourth feedback pin and the second feedback pin are disconnected, and the detection signal cannot be returned.
- the second pin, the third pin outputs a protection signal, and the output module stops working.
- the detection control module is a timing controller.
- the output module includes: a level shift chip, a power chip and a control switch;
- the level shift chip is electrically connected to the third pin; the control end of the control switch is electrically connected to the third pin, the first connection end is electrically connected to the power chip, and the second connection end Ground.
- the control switch When the third pin outputs a protection signal, the control switch is turned on, and when the third pin has no signal output, the control switch is turned off.
- the control switch is a MOS tube
- the gate of the MOS tube is a control terminal
- the drain is a first connection terminal
- the source is a second connection terminal.
- the invention also provides an oblique insertion protection method for a display driving circuit, which includes the following steps:
- Step S1 providing a first circuit board and a second circuit board
- the first circuit board is provided with a detection control module, an output module electrically connected to the detection control module, and a first connection module electrically connected to the detection control module; the second circuit board There is a second connection module for mating connection with the first connection module;
- the detection control module includes a first pin for outputting a detection signal, a second pin for receiving a detection signal, and a third pin for outputting a protection signal;
- the first connection module includes and A first feedback pin connected to the first pin and a second feedback pin connected to the second pin;
- the second connection module includes a third feedback pin and the third feedback pin The fourth feedback pin electrically connected;
- Step S2 Connect the first connection module and the second connection module
- Step S3 Determine whether the first connection module and the second connection module are connected obliquely and control whether the output module works accordingly;
- first feedback pin, the third feedback pin, the fourth feedback pin, and the second feedback pin are connected in series to form a transmission loop, and the detection signal is transmitted back to the second pin through the transmission loop, there is no diagonal insertion ,
- the third pin has no signal output, and the output module works normally;
- the third lead is inserted obliquely.
- the foot outputs a protection signal, and the output module stops working.
- the detection control module is a timing controller.
- the output module includes: a level shift chip, a power chip and a control switch;
- the level shift chip is electrically connected to the third pin; the control end of the control switch is electrically connected to the third pin, the first connection end is electrically connected to the power chip, and the second connection end Ground.
- the control switch When the third pin outputs a protection signal, the control switch is turned on, and when the third pin has no signal output, the control switch is turned off.
- the control switch is a MOS tube
- the gate of the MOS tube is a control terminal
- the drain is a first terminal
- the source is a second terminal.
- the present invention provides an oblique insertion protection system for a display drive circuit, which includes: a first circuit board and a second circuit board; a detection control module and the detection are provided on the first circuit board An output module electrically connected to the test control module and a first connection module electrically connected to the detection control module; the second circuit board is provided with a second connection module for mating connection with the first connection module ;
- a detection signal is sent to the first connection module through the detection control module, and the detection control module determines whether the detection signal can be returned Whether the first connection module and the second connection module are obliquely inserted, and when obliquely inserted, the detection control module sends a protection signal to the output module to control the output module to stop working to avoid the display drive circuit from being burned due to oblique insertion.
- the invention also provides an oblique insertion protection method for the display drive circuit, which can avoid the display drive circuit from being burned due to the oblique insertion, protect the display drive circuit and improve the fault tolerance rate of the manufacturing process at the same time.
- FIG. 1 is a schematic diagram of the correct connection of the oblique insertion protection system of the display drive circuit of the present invention
- FIG. 2 is a schematic diagram of the oblique insertion protection system of the display driving circuit of the present invention when obliquely inserted;
- FIG. 3 is a flowchart of the oblique insertion protection method of the display driving circuit of the present invention.
- the present invention provides an oblique insertion protection system for a display driving circuit, including: a first circuit board 1 And the second circuit board 2 ;
- the first circuit board 1 On the detection control module 3 , And the detection control module 3 Electrically connected output module 4 And with the detection control module 3 Electrically connected first connection module 5 ;
- the second circuit board 2 There is a module for connecting with the first 5 Paired connected second connection module 6 ;
- the detection control module 3 Including the first pin for outputting detection signal 31 , The second pin for receiving the detection signal 32 And the third pin for outputting the protection signal 33 ;
- the first connection module 5 Included with the first pin 31 Connected first feedback pin 51 And with the second pin 32 Connected second feedback pin 52 ;
- the second connection module 6 Including the third feedback pin 61 And with the third feedback pin 61 Electrically connected fourth feedback pin 62 .
- the first circuit board 1 And the second circuit board 2 For the two printed circuit boards used to form the display drive circuit, the first connection module 5 With the second connection module 6 For connecting the first circuit board 1 And the second circuit board 2 The two connectors, the operator connects the first connection module by 5 And the second connection module 6 Connected together so that the first circuit board 1 And the second circuit board 2 Connect to form a complete display drive circuit.
- the first connection module 5 There are several first connection pins arranged in sequence 53 , The second connection module 6 Several second connection pins arranged in sequence 63 , Each first connection pin 53 Are used to connect with a second pin 63 Corresponding to the connection, the first feedback pin 51 And the second feedback pin 52 For the first connection pin 53 The selected two, the third feedback pin 61 And the fourth feedback pin 62 For several second connection pins 63 Two selected, preferably, the first feedback pin 51 And the second feedback pin 52 For the two outermost first connection pins 53 , The third feedback pin 61 And the fourth feedback pin 62 For the two outermost second connection pins 63 .
- each first connection pin 53 are correspondingly connected to their corresponding second connection pins 63
- the first feedback pin 51 Corresponding to the third feedback pin 61
- Second feedback pin 52 which corresponds to the fourth feedback pin 62 So that the first feedback pin 51 3rd feedback pin 61 4th feedback pin 62 And the second feedback pin 52 Serially form a transmission loop in series
- the first pin 31 The detection signal sent out can be returned to the second pin through the transmission loop 12 , The detection control diaphragm 3 On the second pin 12 After receiving the detection signal, control the third pin 13 Does not output any signal, the output module 5 No signal is received, keep normal operation.
- each first connection pin 53 are not correspondingly connected to their corresponding second connection pins 63
- the first feedback pin 51 No corresponding third feedback pin is connected 61
- Second feedback pin 52 The fourth feedback pin is not connected to the corresponding 62 ,
- the first feedback pin 51 No pin connected, second feedback pin 52 Connect to the fourth feedback pin 62 An adjacent second connection pin 63 On the third feedback pin 61 Connect to the first feedback pin 51 An adjacent first connection pin 61 On the fourth feedback pin 62 No pin is connected, at this time the first feedback pin 51 3rd feedback pin 61 4th feedback pin 62 And the second feedback pin 52 Open circuit, the detection signal cannot be transmitted back to the second pin 12 ,
- the third pin 13 Output protection signal, the output module 4 Stop working to prevent the burning of the circuit due to large current.
- the detection control module 3 For the timing controller, the output module 4 Including: level shift chip 41 ⁇ Power chip 42 And control switch 43 ; The level shift chip 41 With the third pin 13 Electrical connection; the control switch 43 The control terminal and the third pin 13 Electrically connected, the first connection end and the power chip 42 Electrically connected, the second connection terminal is grounded.
- the output module 4 During normal operation, the level shift chip 41 Receiving timing signals from the timing controller, the power chip 42 Output power supply voltage value level shift chip 41 , The level shift chip 41 Boosting the timing signal using the power supply voltage, and outputting the boosted timing signal to the display panel; the output module 4 When stop working, the power chip 42 Stop output power supply voltage value level shift chip 41 , The level shift chip 41 Stop outputting the boosted timing signal to the display panel.
- the level shift chip 41 Shift control pin 411 With the third pin 13 Electrical connection, the power chip 42 Power control pin 421 With control switch 43 The first connection terminal is electrically connected, the third pin 13 When a protection signal is output, the control switch 43 Turn on, the power control pin 421 Is pulled down to ground potential, the power chip 42 Controlled to stop working, the shift control pin 411 After receiving the protection signal, it is also controlled to stop working.
- the third pin 13 When there is no signal output, the control switch 43 Off, the power control pin 421 Keeps the normal potential, the power chip 42 Normal operation, the shift control pin 411 No signal is received and it works normally.
- control switch 43 for MOS Tube the MOS The gate of the tube is the control terminal, the drain is the first connection terminal, and the source is the second connection terminal.
- the protection signal is a 3.3V High potential signal.
- the first pin 31 , Second pin 32 And the third pin 33 Respectively for the timing controller GPIO5 Pins, GPIO6 Pin and WP Pin WP ;
- the shift control pin 411 For the level shift chip 41 of FLT Pin, the power control pin 421 Power chip 42 of COMP Pins.
- the present invention also provides an oblique insertion protection method for a display driving circuit, including the following steps:
- step S1 Provide the first circuit board 1 And the second circuit board 2 ;
- the first circuit board 1 On the detection control module 3 , And the detection control module 3 Electrically connected output module 4 And with the detection control module 3 Electrically connected first connection module 5 ;
- the second circuit board 2 There is a module for connecting with the first 5 Paired connected second connection module 6 ;
- the detection control module 3 Including the first pin for outputting detection signal 31 , The second pin for receiving the detection signal 32 And the third pin for outputting the protection signal 33 ;
- the first connection module 5 Included with the first pin 31 Connected first feedback pin 51 And with the second pin 32 Connected second feedback pin 52 ;
- the second connection module 6 Including the third feedback pin 61 And with the third feedback pin 61 Electrically connected fourth feedback pin 62 .
- the first circuit board 1 And the second circuit board 2 For the two printed circuit boards used to form the display drive circuit, the first connection module 5 With the second connection module 6 For connecting the first circuit board 1 And the second circuit board 2 The two connectors, the operator connects the first connection module by 5 And the second connection module 6 Connected together so that the first circuit board 1 And the second circuit board 2 Connect to form a complete display drive circuit.
- step S2 Connect the first connection module 5 And the second connection module 6 ;
- step S3 Determine the first connection module after connection 5 And the second connection module 6 Whether there is oblique insertion and correspondingly control whether the output module works;
- the detection signal cannot be transmitted back to the second pin 12 , Obliquely inserted; the third pin 13 Output protection signal, the output module 4 stop working.
- the first connection module 5 There are several first connection pins arranged in sequence 53 , The second connection module 6 Several second connection pins arranged in sequence 63 , Each first connection pin 53 Are used to connect with a second pin 63 Corresponding to the connection, the first feedback pin 51 And the second feedback pin 52 For the first connection pin 53 The selected two, the third feedback pin 61 And the fourth feedback pin 62 For several second connection pins 63 Two selected, preferably, the first feedback pin 51 And the second feedback pin 52 For the two outermost first connection pins 53 , The third feedback pin 61 And the fourth feedback pin 62 For the two outermost second connection pins 63 .
- each first connection pin 53 are correspondingly connected to their corresponding second connection pins 63
- the first feedback pin 51 Corresponding to the third feedback pin 61
- Second feedback pin 52 which corresponds to the fourth feedback pin 62 So that the first feedback pin 51 3rd feedback pin 61 4th feedback pin 62 And the second feedback pin 52 Serially form a transmission loop in series
- the first pin 31 The detection signal sent out can be returned to the second pin through the transmission loop 12 , The detection control diaphragm 3 On the second pin 12 After receiving the detection signal, control the third pin 13 Does not output any signal, the output module 5 No signal is received, keep normal operation.
- each first connection pin 53 are not correspondingly connected to their corresponding second connection pins 63
- the first feedback pin 51 No corresponding third feedback pin is connected 61
- Second feedback pin 52 The fourth feedback pin is not connected to the corresponding 62 ,
- the first feedback pin 51 No pin connected, second feedback pin 52 Connect to the fourth feedback pin 62 An adjacent second connection pin 63 On the third feedback pin 61 Connect to the first feedback pin 51 An adjacent first connection pin 61 On the fourth feedback pin 62 No pin is connected, at this time the first feedback pin 51 3rd feedback pin 61 4th feedback pin 62 And the second feedback pin 52 Open circuit, the detection signal cannot be transmitted back to the second pin 12 ,
- the third pin 13 Output protection signal, the output module 4 Stop working to prevent the burning of the circuit due to large current.
- the output module 4 During normal operation, the level shift chip 41 Receiving timing signals from the timing controller, the power chip 42 Output power supply voltage value level shift chip 41 , The level shift chip 41 Boosting the timing signal using the power supply voltage, and outputting the boosted timing signal to the display panel; the output module 4 When stop working, the power chip 42 Stop output power supply voltage value level shift chip 41 , The level shift chip 41 Stop outputting the boosted timing signal to the display panel.
- the level shift chip 41 Shift control pin 411 With the third pin 13 Electrical connection, the power chip 42 Power control pin 421 With control switch 43 The first connection terminal is electrically connected, the third pin 13 When a protection signal is output, the control switch 43 Turn on, the power control pin 421 Is pulled down to ground potential, the power chip 42 Controlled to stop working, the shift control pin 411 After receiving the protection signal, it is also controlled to stop working.
- the third pin 13 When there is no signal output, the control switch 43 Off, the power control pin 421 Keeps the normal potential, the power chip 42 Normal operation, the shift control pin 411 No signal is received and it works normally.
- control switch 43 for MOS Tube the MOS The gate of the tube is the control terminal, the drain is the first connection terminal, and the source is the second connection terminal.
- the protection signal is a 3.3V High potential signal.
- the first pin 31 , Second pin 32 And the third pin 33 Respectively for the timing controller GPIO5 Pins, GPIO6 Pin and WP Pin WP ;
- the shift control pin 411 For the level shift chip 41 of FLT Pin, the power control pin 421 Power chip 42 of COMP Pins.
- the present invention provides an oblique insertion protection system for a display driving circuit, including: a first circuit board and a second circuit board; a detection control module and detection are provided on the first circuit board An output module electrically connected to the control module and a first connection module electrically connected to the detection control module; the second circuit board is provided with a second connection module paired with the first connection module; When the first connection module and the second connection module are paired and connected, a detection signal is sent to the first connection module by the detection control module, and the detection control module is judged according to whether the detection signal can be returned to the detection control module Whether a connection module and the second connection module are obliquely inserted, and when obliquely inserted, a protection signal is sent to the output module through the detection control module to control the output module to stop working, to avoid the display drive circuit from being burned due to oblique insertion and protection Display the drive circuit while improving the fault tolerance of the process.
- the invention also provides an oblique insertion protection method for the display drive circuit
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Abstract
一种显示驱动电路的斜插保护系统及斜插保护方法。该系统包括：第一电路板（1）及第二电路板（2）；该第一电路板（1）上设有侦测控制模块（3）、与该侦测控制模块（3）电性连接的输出模块（4）以及与该侦测控制模块（3）电性连接的第一连接模块（5）；该第二电路板（2）上设有用于与该第一连接模块（5）配对连接的第二连接模块（6）；在该第一连接模块（5）与第二连接模块（6）配对连接时，通过侦测控制模块（3）向该第一连接模块（5）发出侦测信号，并根据侦测信号是否能够传回侦测控制模块（3）判断该第一连接模块（5）与第二连接模块（6）是否斜插，并在斜插时，通过侦测控制模块（3）向输出模块发出保护信号，控制该输出模块（4）停止工作，避免因斜插导致的显示驱动电路烧毁。
Description
本发明涉及显示技术领域，尤其涉及一种显示驱动电路的斜插保护系统及斜插保护方法。
随着显示技术的发展，液晶显示器（Liquid Crystal Display，LCD）等平面显示装置因具有高画质、省电、机身薄及应用范围广等优点，而被广泛的应用于手机、电视、个人数字助理、数字相机、笔记本电脑、台式计算机等各种消费性电子产品，成为显示装置中的主流。
现有市场上的液晶显示装置大部分为背光型液晶显示器，其包括液晶显示面板及背光模组（backlight module）。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
通常液晶显示面板还需要通过外部驱动电路进行驱动，所述外部驱动电路一般包括：设于一印刷电路板（ Printed
Circuit Board ，PCB）上的时序控制芯片（TCON）、电源管理芯片（Power manage IC）、及电平移位芯片（Level
Shift）等，其中，所述时序控制芯片主要用于低压差分（Low-Voltage
Differential Signaling，LVDS）信号转化为低幅值传输频率高的Mini-LVDS信号以及产生驱动液晶面板的时钟信号，所述电源管理芯片主要用于产生驱动液晶显示面板各类电压，所述电平移位芯片主要对时钟信号进行升压，使得时钟信号的电压达到显示面板的驱动要求。
随着显示技术发展，用户对显示画面的要求也越来越高，外部驱动电路上的驱动器件也越来越多，以保证驱动效果，提升显示品质，同时显示面板的尺寸约越来越大，此时一块印刷电路板（PCB）已经无法满足外部驱动电路的布置，因此现有技术会将外部驱动电路布置到多个PCB板上，不同的PCB板通过连接器连接，在器件的制作过程中，由于作业人员专业度参差不齐，在进行连接各个连接器时，经常会出现原本应该一一对应连接的各个连接器引脚出现错位，将两个不对应的引脚连接到一起，即斜插，斜插会导致外部驱动电路的信号传输错误，甚至出现大电流，使得外部驱动电路烧毁，造成资源浪费。
本发明的目的在于提供一种显示驱动电路的斜插保护系统，能够避免因斜插导致的显示驱动电路烧毁，保护显示驱动电路的同时提升制程的容错率。
本发明的目的还在于提供一种显示驱动电路的斜插保护方法，能够避免因斜插的导致显示驱动电路烧毁，保护显示驱动电路的同时提升制程的容错率。
为实现上述目的，本发明提供了一种显示驱动电路的斜插保护系统，包括：第一电路板及第二电路板；
所述第一电路板上设有侦测控制模块、与所述侦测控制模块电性连接的输出模块以及与所述侦测控制模块电性连接的第一连接模块；所述第二电路板上设有用于与所述第一连接模块配对连接的第二连接模块；
所述侦测控制模块包括用于输出侦测信号的第一引脚、用于接收侦测信号的第二引脚以及用于输出保护信号的第三引脚；
所述第一连接模块包括与所述第一引脚相连的第一反馈引脚和与所述第二引脚相连的第二反馈引脚；所述第二连接模块包括第三反馈引脚和与所述第三反馈引脚电性连接的第四反馈引脚；
所述第一连接模块与第二连接模块正确连接时，所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚依次串联形成传输回路，侦测信号经过该传输回路传回第二引脚，所述第三引脚无信号输出，所述输出模块正常工作；
所述第一连接模块与第二连接模块斜插时，所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚之间断路，侦测信号无法传回第二引脚，所述第三引脚输出保护信号，所述输出模块停止工作。
所述侦测控制模块为时序控制器。
所述输出模块包括：电平移位芯片、电源芯片及控制开关；
所述电平移位芯片与所述第三引脚电性连接；所述控制开关的控制端与第三引脚电性连接，第一连接端与所述电源芯片电性连接，第二连接端接地。
所述第三引脚输出保护信号时，所述控制开关开启，所述第三引脚无信号输出时，所述控制开关关闭。
所述控制开关为MOS管，所述MOS管的栅极为控制端，漏极为第一连接端，源极为第二连接端。
本发明还提供一种显示驱动电路的斜插保护方法，包括如下步骤：
步骤S1、提供第一电路板及第二电路板；
所述第一电路板上设有侦测控制模块、与所述侦测控制模块电性连接的输出模块以及与所述侦测控制模块电性连接的第一连接模块；所述第二电路板上设有用于与所述第一连接模块配对连接的第二连接模块；
所述侦测控制模块包括用于输出侦测信号的第一引脚、用于接收侦测信号的第二引脚以及用于输出保护信号的第三引脚；所述第一连接模块包括与所述第一引脚相连的第一反馈引脚和与所述第二引脚相连的第二反馈引脚；所述第二连接模块包括第三反馈引脚和与所述第三反馈引脚电性连接的第四反馈引脚；
步骤S2、连接所述第一连接模块和第二连接模块；
步骤S3、判断连接后的第一连接模块和第二连接模块是否出现斜插并相应控制输出模块是否工作；
若所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚依次串联形成传输回路，侦测信号经过该传输回路传回第二引脚，则未斜插，所述第三引脚无信号输出，所述输出模块正常工作；
若所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚之间断路，侦测信号无法传回第二引脚，则斜插，所述第三引脚输出保护信号，所述输出模块停止工作。
所述侦测控制模块为时序控制器。
所述输出模块包括：电平移位芯片、电源芯片及控制开关；
所述电平移位芯片与所述第三引脚电性连接；所述控制开关的控制端与第三引脚电性连接，第一连接端与所述电源芯片电性连接，第二连接端接地。
所述第三引脚输出保护信号时，所述控制开关开启，所述第三引脚无信号输出时，所述控制开关关闭。
所述控制开关为MOS管，所述MOS管的栅极为控制端，漏极为第一端，源极为第二端。
本发明的有益效果：本发明提供一种显示驱动电路的斜插保护系统，包括：第一电路板及第二电路板；所述第一电路板上设有侦测控制模块、与所述侦测控制模块电性连接的输出模块以及与所述侦测控制模块电性连接的第一连接模块；所述第二电路板上设有用于与所述第一连接模块配对连接的第二连接模块；在所述第一连接模块与第二连接模块配对连接时，通过侦测控制模块向所述第一连接模块发出侦测信号，并根据侦测信号是否能够传回侦测控制模块判断所述第一连接模块与第二连接模块是否斜插，并在斜插时，通过侦测控制模块向输出模块发出保护信号，控制所述输出模块停止工作，避免因斜插导致的显示驱动电路烧毁，保护显示驱动电路的同时提升制程的容错率。本发明还提供一种显示驱动电路的斜插保护方法，能够避免因斜插导致的显示驱动电路烧毁，保护显示驱动电路的同时提升制程的容错率。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的显示驱动电路的斜插保护系统的正确连接时的示意图；
图2为本发明的显示驱动电路的斜插保护系统的斜插时的示意图；
图3为本发明的显示驱动电路的斜插保护方法的流程图。
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图
1
和图
2
，本发明提供一种显示驱动电路的斜插保护系统，包括：第一电路板
1
及第二电路板
2
；
所述第一电路板
1
上设有侦测控制模块
3
、与所述侦测控制模块
3
电性连接的输出模块
4
以及与所述侦测控制模块
3
电性连接的第一连接模块
5
；所述第二电路板
2
上设有用于与所述第一连接模块
5
配对连接的第二连接模块
6
；
所述侦测控制模块
3
包括用于输出侦测信号的第一引脚
31
、用于接收侦测信号的第二引脚
32
以及用于输出保护信号的第三引脚
33
；
所述第一连接模块
5
包括与所述第一引脚
31
相连的第一反馈引脚
51
和与所述第二引脚
32
相连的第二反馈引脚
52
；所述第二连接模块
6
包括第三反馈引脚
61
和与所述第三反馈引脚
61
电性连接的第四反馈引脚
62
。
需要说明的是，所述第一电路板
1
和第二电路板
2
为用于构成显示驱动电路的两块印刷电路板，所述第一连接模块
5
与第二连接模块
6
为用于连接所述第一电路板
1
和第二电路板
2
的两个连接器，操作人员通过将所述第一连接模块
5
和第二连接模块
6
连接到一起，使得所述第一电路板
1
和第二电路板
2
连接，以构成完整的显示驱动电路。
实际上，所述第一连接模块
5
上设有数个依次排列的第一连接引脚
53
，所述第二连接模块
6
设有数个依次排列的数个第二连接引脚
63
，每一个第一连接引脚
53
均用于与一个第二连接引脚
63
对应连接，所述第一反馈引脚
51
和第二反馈引脚
52
为从所述数个第一连接引脚
53
选定的两个，所述第三反馈引脚
61
和第四反馈引脚
62
为从数个第二连接引脚
63
中选定的两个，优选地，所述第一反馈引脚
51
和第二反馈引脚
52
为所最外侧的两个第一连接引脚
53
，所述第三反馈引脚
61
和第四反馈引脚
62
为最外侧的两个第二连接引脚
63
。
如图
1
所示，在所述第一连接模块
5
和第二连接模块
6
正确连接的情况下，每一个第一连接引脚
53
均对应连接到其对应的第二连接引脚
63
上，当然，第一反馈引脚
51
也就对应连接第三反馈引脚
61
，第二反馈引脚
52
也就对应连接第四反馈引脚
62
，从而所述第一反馈引脚
51
、第三反馈引脚
61
、第四反馈引脚
62
及第二反馈引脚
52
依次串联形成传输回路，所述第一引脚
31
发出的侦测信号，能够经过该传输回路传回至第二引脚
12
，所述侦测控制膜片
3
在第二引脚
12
接收到侦测信号后，控制所述第三引脚
13
不输出任何信号，所述输出模块
5
未接收到信号，保持正常工作。
如图
2
所示，在所述第一连接模块
5
和第二连接模块
6
未正确连接即斜插的情况下，每一个第一连接引脚
53
均未对应连接到其对应的第二连接引脚
63
上，当然，第一反馈引脚
51
也未对应连接第三反馈引脚
61
，第二反馈引脚
52
也未对对应连接第四反馈引脚
62
，例如图
2
所示的，第一反馈引脚
51
未连接任何引脚，第二反馈引脚
52
连接至与第四反馈引脚
62
相邻的一个第二连接引脚
63
上，第三反馈引脚
61
连接至与第一反馈引脚
51
相邻的一个第一连接引脚
61
上，第四反馈引脚
62
未连接任何引脚，此时所述第一反馈引脚
51
、第三反馈引脚
61
、第四反馈引脚
62
及第二反馈引脚
52
之间断路，侦测信号无法传回第二引脚
12
，所述第三引脚
13
输出保护信号，所述输出模块
4
停止工作，以防止产生大电流导致电路烧毁。
需要说明的是，所述侦测控制模块
3
为时序控制器，所述输出模块
4
包括：电平移位芯片
41
、电源芯片
42
及控制开关
43
；所述电平移位芯片
41
与所述第三引脚
13
电性连接；所述控制开关
43
的控制端与第三引脚
13
电性连接，第一连接端与所述电源芯片
42
电性连接，第二连接端接地。
所述输出模块
4
正常工作时，电平移位芯片
41
从时序控制器接收时序信号，所述电源芯片
42
输出电源电压值电平移位芯片
41
，所述电平移位芯片
41
利用电源电压对所述时序信号进行升压，并将升压后的时序信号输出至显示面板中；所述输出模块
4
停止工作时，所述电源芯片
42
停止输出电源电压值电平移位芯片
41
，所述电平移位芯片
41
停止输出升压后的时序信号至显示面板。
具体地，所述电平移位芯片
41
上设有移位控制引脚
411
及数个移位功能引脚（未图示），所述电源芯片
42
上设有电源控制引脚
421
和数个电源功能引脚（未图示），所述时序控制器上设有第一引脚
31
、第二引脚
32
、第三引脚
33
及数个时序功能引脚（未图示），所述时序信号、电源信号的传输通过所述移位功能引脚、电源功能引脚及时序功能引脚完成。
所述电平移位芯片
41
的移位控制引脚
411
与所述第三引脚
13
电性连接，所述电源芯片
42
的电源控制引脚
421
与控制开关
43
的第一连接端电性连接，所述第三引脚
13
输出保护信号时，所述控制开关
43
开启，所述电源控制引脚
421
的电位被拉低至接地电位，所述电源芯片
42
被控制停止工作，所述移位控制引脚
411
接收到保护信号，也被控制停止工作。所述第三引脚
13
无信号输出时，所述控制开关
43
关闭，所述电源控制引脚
421
的电位保持正常电位，所述电源芯片
42
正常工作，所述移位控制引脚
411
未收到信号，也正常工作。
优选地，所述控制开关
43
为
MOS
管，所述
MOS
管的栅极为控制端，漏极为第一连接端，源极为第二连接端。
优选地，所述保护信号为一
3.3V
的高电位信号。
具体地，所述第一引脚
31
、第二引脚
32
及第三引脚
33
分别为所述时序控制器的
GPIO5
引脚、
GPIO6
引脚及
WP
引脚
WP
；所述移位控制引脚
411
为所述电平移位芯片
41
的
FLT
引脚，所述电源控制引脚
421
为电源芯片
42
的
COMP
引脚。
请参阅图
3
，本发明还提供一种显示驱动电路的斜插保护方法，包括如下步骤：
步骤
S1
、提供第一电路板
1
及第二电路板
2
；
所述第一电路板
1
上设有侦测控制模块
3
、与所述侦测控制模块
3
电性连接的输出模块
4
以及与所述侦测控制模块
3
电性连接的第一连接模块
5
；所述第二电路板
2
上设有用于与所述第一连接模块
5
配对连接的第二连接模块
6
；
所述侦测控制模块
3
包括用于输出侦测信号的第一引脚
31
、用于接收侦测信号的第二引脚
32
以及用于输出保护信号的第三引脚
33
；所述第一连接模块
5
包括与所述第一引脚
31
相连的第一反馈引脚
51
和与所述第二引脚
32
相连的第二反馈引脚
52
；所述第二连接模块
6
包括第三反馈引脚
61
和与所述第三反馈引脚
61
电性连接的第四反馈引脚
62
。
需要说明的是，所述第一电路板
1
和第二电路板
2
为用于构成显示驱动电路的两块印刷电路板，所述第一连接模块
5
与第二连接模块
6
为用于连接所述第一电路板
1
和第二电路板
2
的两个连接器，操作人员通过将所述第一连接模块
5
和第二连接模块
6
连接到一起，使得所述第一电路板
1
和第二电路板
2
连接，以构成完整的显示驱动电路。
步骤
S2
、连接所述第一连接模块
5
和第二连接模块
6
；
步骤
S3
、判断连接后的第一连接模块
5
和第二连接模块
6
是否出现斜插并相应控制输出模块是否工作；
若所述第一反馈引脚
51
、第三反馈引脚
61
、第四反馈引脚
62
及第二反馈引脚
52
依次串联形成传输回路，侦测信号经过该传输回路传回第二引脚
12
，则未斜插；所述第三引脚
13
无信号输出，所述输出模块
4
正常工作；
若所述第一反馈引脚
51
、第三反馈引脚
61
、第四反馈引脚
62
及第二反馈引脚
52
之间断路，侦测信号无法传回第二引脚
12
，则斜插；所述第三引脚
13
输出保护信号，所述输出模块
4
停止工作。
实际上，所述第一连接模块
5
上设有数个依次排列的第一连接引脚
53
，所述第二连接模块
6
设有数个依次排列的数个第二连接引脚
63
，每一个第一连接引脚
53
均用于与一个第二连接引脚
63
对应连接，所述第一反馈引脚
51
和第二反馈引脚
52
为从所述数个第一连接引脚
53
选定的两个，所述第三反馈引脚
61
和第四反馈引脚
62
为从数个第二连接引脚
63
中选定的两个，优选地，所述第一反馈引脚
51
和第二反馈引脚
52
为所最外侧的两个第一连接引脚
53
，所述第三反馈引脚
61
和第四反馈引脚
62
为最外侧的两个第二连接引脚
63
。
如图
1
所示，在所述第一连接模块
5
和第二连接模块
6
未斜插即正确连接的情况下，每一个第一连接引脚
53
均对应连接到其对应的第二连接引脚
63
上，当然，第一反馈引脚
51
也就对应连接第三反馈引脚
61
，第二反馈引脚
52
也就对应连接第四反馈引脚
62
，从而所述第一反馈引脚
51
、第三反馈引脚
61
、第四反馈引脚
62
及第二反馈引脚
52
依次串联形成传输回路，所述第一引脚
31
发出的侦测信号，能够经过该传输回路传回至第二引脚
12
，所述侦测控制膜片
3
在第二引脚
12
接收到侦测信号后，控制所述第三引脚
13
不输出任何信号，所述输出模块
5
未接收到信号，保持正常工作。
如图
2
所示，在所述第一连接模块
5
和第二连接模块
6
未正确连接即斜插的情况下，每一个第一连接引脚
53
均未对应连接到其对应的第二连接引脚
63
上，当然，第一反馈引脚
51
也未对应连接第三反馈引脚
61
，第二反馈引脚
52
也未对对应连接第四反馈引脚
62
，例如图
2
所示的，第一反馈引脚
51
未连接任何引脚，第二反馈引脚
52
连接至与第四反馈引脚
62
相邻的一个第二连接引脚
63
上，第三反馈引脚
61
连接至与第一反馈引脚
51
相邻的一个第一连接引脚
61
上，第四反馈引脚
62
未连接任何引脚，此时所述第一反馈引脚
51
、第三反馈引脚
61
、第四反馈引脚
62
及第二反馈引脚
52
之间断路，侦测信号无法传回第二引脚
12
，所述第三引脚
13
输出保护信号，所述输出模块
4
停止工作，以防止产生大电流导致电路烧毁。
所述输出模块
4
正常工作时，电平移位芯片
41
从时序控制器接收时序信号，所述电源芯片
42
输出电源电压值电平移位芯片
41
，所述电平移位芯片
41
利用电源电压对所述时序信号进行升压，并将升压后的时序信号输出至显示面板中；所述输出模块
4
停止工作时，所述电源芯片
42
停止输出电源电压值电平移位芯片
41
，所述电平移位芯片
41
停止输出升压后的时序信号至显示面板。
具体地，所述电平移位芯片
41
上设有移位控制引脚
411
及数个移位功能引脚（未图示），所述电源芯片
42
上设有电源控制引脚
421
和数个电源功能引脚（未图示），所述时序控制器上设有第一引脚
31
、第二引脚
32
、第三引脚
33
及数个时序功能引脚（未图示），所述时序信号、电源信号的传输通过所述移位功能引脚、电源功能引脚及时序功能引脚完成。
所述电平移位芯片
41
的移位控制引脚
411
与所述第三引脚
13
电性连接，所述电源芯片
42
的电源控制引脚
421
与控制开关
43
的第一连接端电性连接，所述第三引脚
13
输出保护信号时，所述控制开关
43
开启，所述电源控制引脚
421
的电位被拉低至接地电位，所述电源芯片
42
被控制停止工作，所述移位控制引脚
411
接收到保护信号，也被控制停止工作。所述第三引脚
13
无信号输出时，所述控制开关
43
关闭，所述电源控制引脚
421
的电位保持正常电位，所述电源芯片
42
正常工作，所述移位控制引脚
411
未收到信号，也正常工作。
优选地，所述控制开关
43
为
MOS
管，所述
MOS
管的栅极为控制端，漏极为第一连接端，源极为第二连接端。
优选地，所述保护信号为一
3.3V
的高电位信号。
具体地，所述第一引脚
31
、第二引脚
32
及第三引脚
33
分别为所述时序控制器的
GPIO5
引脚、
GPIO6
引脚及
WP
引脚
WP
；所述移位控制引脚
411
为所述电平移位芯片
41
的
FLT
引脚，所述电源控制引脚
421
为电源芯片
42
的
COMP
引脚。
综上所述，本发明提供一种显示驱动电路的斜插保护系统，包括：第一电路板及第二电路板；所述第一电路板上设有侦测控制模块、与所述侦测控制模块电性连接的输出模块以及与所述侦测控制模块电性连接的第一连接模块；所述第二电路板上设有用于与所述第一连接模块配对连接的第二连接模块；在所述第一连接模块与第二连接模块配对连接时，通过侦测控制模块向所述第一连接模块发出侦测信号，并根据侦测信号是否能够传回侦测控制模块判断所述第一连接模块与第二连接模块是否斜插，并在斜插时，通过侦测控制模块向输出模块发出保护信号，控制所述输出模块停止工作，避免因斜插导致的显示驱动电路烧毁，保护显示驱动电路的同时提升制程的容错率。本发明还提供一种显示驱动电路的斜插保护方法，能够避免因斜插导致的显示驱动电路烧毁，保护显示驱动电路的同时提升制程的容错率。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。
Claims (10)
- 一种显示驱动电路的斜插保护系统，包括：第一电路板及第二电路板；所述第一电路板上设有侦测控制模块、与所述侦测控制模块电性连接的输出模块以及与所述侦测控制模块电性连接的第一连接模块；所述第二电路板上设有用于与所述第一连接模块配对连接的第二连接模块；所述侦测控制模块包括用于输出侦测信号的第一引脚、用于接收侦测信号的第二引脚以及用于输出保护信号的第三引脚；所述第一连接模块包括与所述第一引脚相连的第一反馈引脚和与所述第二引脚相连的第二反馈引脚；所述第二连接模块包括第三反馈引脚和与所述第三反馈引脚电性连接的第四反馈引脚；所述第一连接模块与第二连接模块正确连接时，所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚依次串联形成传输回路，侦测信号经过该传输回路传回第二引脚，所述第三引脚无信号输出，所述输出模块正常工作；所述第一连接模块与第二连接模块斜插时，所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚之间断路，侦测信号无法传回第二引脚，所述第三引脚输出保护信号，所述输出模块停止工作。
- 如权利要求1所述的显示驱动电路的斜插保护系统，其中，所述侦测控制模块为时序控制器。
- 如权利要求1所述的显示驱动电路的斜插保护系统，其中，所述输出模块包括：电平移位芯片、电源芯片及控制开关；所述电平移位芯片与所述第三引脚电性连接；所述控制开关的控制端与第三引脚电性连接，第一连接端与所述电源芯片电性连接，第二连接端接地。
- 如权利要求3所述的显示驱动电路的斜插保护系统，其中，所述第三引脚输出保护信号时，所述控制开关开启，所述第三引脚无信号输出时，所述控制开关关闭。
- 如权利要求3所述的显示驱动电路的斜插保护系统，其中，所述控制开关为MOS管，所述MOS管的栅极为控制端，漏极为第一连接端，源极为第二连接端。
- 一种显示驱动电路的斜插保护方法，包括如下步骤：步骤S1、提供第一电路板及第二电路板；所述第一电路板上设有侦测控制模块、与所述侦测控制模块电性连接的输出模块以及与所述侦测控制模块电性连接的第一连接模块；所述第二电路板上设有用于与所述第一连接模块配对连接的第二连接模块；所述侦测控制模块包括用于输出侦测信号的第一引脚、用于接收侦测信号的第二引脚以及用于输出保护信号的第三引脚；所述第一连接模块包括与所述第一引脚相连的第一反馈引脚和与所述第二引脚相连的第二反馈引脚；所述第二连接模块包括第三反馈引脚和与所述第三反馈引脚电性连接的第四反馈引脚；步骤S2、连接所述第一连接模块和第二连接模块；步骤S3、判断连接后的第一连接模块和第二连接模块是否出现斜插并相应控制输出模块是否工作；若所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚依次串联形成传输回路，侦测信号经过该传输回路传回第二引脚，则未斜插，所述第三引脚无信号输出，所述输出模块正常工作；若所述第一反馈引脚、第三反馈引脚、第四反馈引脚及第二反馈引脚之间断路，侦测信号无法传回第二引脚，则斜插，所述第三引脚输出保护信号，所述输出模块停止工作。
- 如权利要求6所述的显示驱动电路的斜插保护方法，其中，所述侦测控制模块为时序控制器。
- 如权利要求6所述的显示驱动电路的斜插保护方法，其中，所述输出模块包括：电平移位芯片、电源芯片及控制开关；所述电平移位芯片与所述第三引脚电性连接；所述控制开关的控制端与第三引脚电性连接，第一连接端与所述电源芯片电性连接，第二连接端接地。
- 如权利要求8所述的显示驱动电路的斜插保护方法，其中，所述第三引脚输出保护信号时，所述控制开关开启，所述第三引脚无信号输出时，所述控制开关关闭。
- 如权利要求8所述的显示驱动电路的斜插保护方法，其中，所述控制开关为MOS管，所述MOS管的栅极为控制端，漏极为第一端，源极为第二端。
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| CN110673408A (zh) * | 2019-09-02 | 2020-01-10 | 深圳市华星光电技术有限公司 | 显示屏 |
| CN113050317B (zh) * | 2021-03-08 | 2022-08-05 | Tcl华星光电技术有限公司 | 面板驱动电路和显示装置 |
| CN113611258A (zh) * | 2021-09-16 | 2021-11-05 | 福州京东方光电科技有限公司 | 驱动部件及显示装置 |
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