WO2018040345A1 - 用于系统端与显示面板兼容的自动识别方法及装置 - Google Patents

用于系统端与显示面板兼容的自动识别方法及装置 Download PDF

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Publication number
WO2018040345A1
WO2018040345A1 PCT/CN2016/108533 CN2016108533W WO2018040345A1 WO 2018040345 A1 WO2018040345 A1 WO 2018040345A1 CN 2016108533 W CN2016108533 W CN 2016108533W WO 2018040345 A1 WO2018040345 A1 WO 2018040345A1
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Prior art keywords
voltage signal
display panel
signal
state change
identification
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English (en)
French (fr)
Inventor
黄笑宇
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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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
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G3/2096—Details of the interface to the display terminal specific for a flat panel
    • 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
    • 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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/22—Detection of presence or absence of input display information or of connection or disconnection of a corresponding information source

Definitions

  • the invention belongs to the field of liquid crystal display, and in particular relates to an automatic identification method and device for compatibility between a system end and a display panel.
  • TFT LCD Thin Film Transistor Liquid Crystal Display
  • the main driving principle of the TFT LCD is that the system motherboard connects the R/G/B compression signal, the control signal and the power through the wire connector to the connector connector on the PCB board, and the data passes through the timing controller chip on the PCB board (Timing Controller, After TCON) processing, the PCB, the source-chip on-chip (S-COF), and the gate-carrying film (G-COF) are connected to the display area on the display panel, thereby The LCD obtains the required power and signal, as shown in Figure 1.
  • the existing method mainly controls and manages different system end settings by means of a material number, which has high management cost and is prone to mismatching.
  • the present invention proposes a solution to the above problems.
  • One of the technical problems to be solved by the present invention is to provide a system with low cost and high accuracy.
  • an embodiment of the present application first provides an automatic identification method for compatibility between a system end and a display panel, including: continuously detecting a first voltage signal and a second voltage signal output by the display panel; a state change of the first voltage signal determines an identification interval of the second voltage signal; detecting a state change of the second voltage signal in the identification interval; acquiring a display according to a detection result of the second voltage signal The type of panel, and adjust the system side according to the type of display panel to make the system side compatible with the display panel.
  • the determining the identification interval of the second voltage signal according to the state change of the first voltage signal comprises: determining a first state change of the first voltage signal to be the second voltage signal a starting point of the identification interval; determining a second state change of the first voltage signal to be an end point of the identification interval of the second voltage signal.
  • the detecting the state change of the second voltage signal in the identification interval comprises: starting the second voltage signal after acquiring a starting point of the identification interval of the second voltage signal The state change is counted, and the count value is incremented by one for each state change of the second voltage signal; after the end point of the recognition interval of the second voltage signal is acquired, the counting is stopped, and the count value is used as the detection result. .
  • the state change comprises a rising edge or a falling edge of the signal when the voltage jump occurs.
  • the state change comprises a positive pulse or a negative pulse when the signal is subjected to a voltage jump.
  • the adjusting the system end according to the type of the display panel to make the system end compatible with the display panel comprises adjusting the setting of the optical characteristic parameter of the system end.
  • An embodiment of the present application further provides an automatic identification device for a system side compatible with a display panel, comprising: a detection module that continuously detects a first voltage signal and a second voltage signal output by the display panel; and an identification interval determining module, Determining an identification interval of the second voltage signal according to a state change of the first voltage signal; an identification module detecting a state change of the second voltage signal in the identification interval; and an adjustment module according to the adjustment module
  • the detection result of the second voltage signal acquires the type of the display panel, and adjusts the system end according to the type of the display panel to make the system end compatible with the display panel.
  • the identification interval determining module determines a first state change of the first voltage signal to be a starting point of the identification interval of the second voltage signal; and a second time that the first voltage signal occurs The state change is determined as the end point of the identification interval of the second voltage signal.
  • the identifying module starts counting a state change of the second voltage signal, and each time the second voltage signal occurs once The count value is incremented by one; after the end point of the recognition interval of the second voltage signal is acquired, the counting is stopped, and the count value is used as the detection result.
  • the adjustment module adjusts the setting of optical characteristic parameters of the system end.
  • the type of the display panel is determined by identifying the first voltage signal and the second voltage signal sent by the display panel, and solving the problem that the system-side and the display panel are prone to errors when the method based on the item number in the prior art is solved. At the same time, the cost of collocation management is reduced.
  • FIG. 1 is a schematic diagram of a driving structure of a thin film transistor liquid crystal display in the prior art
  • FIG. 2 is a schematic flow chart of an automatic identification method for compatibility between a system end and a display panel according to an embodiment of the invention
  • FIG. 3 is a schematic structural diagram of a signal generating circuit for generating a first voltage signal and a second voltage signal according to another embodiment of the present invention
  • FIG. 4 is a schematic diagram showing detection waveforms of the signal generation circuit shown in FIG. 3;
  • FIG. 5 is a schematic structural diagram of an automatic identification device for system end compatible with a display panel according to still another embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of an automatic identification method for compatibility between a system end and a display panel according to an embodiment of the present invention. As shown in the figure, the method includes the following steps:
  • Step S210 continuously detecting the first voltage signal and the second voltage signal output by the display panel.
  • Step S220 Determine an identification interval of the second voltage signal according to a state change of the first voltage signal.
  • Step S230 detecting a state change of the second voltage signal in the identification interval.
  • Step S240 Acquire a type of the display panel according to the detection result of the second voltage signal, and adjust the system end according to the type of the display panel to make the system end compatible with the display panel.
  • step S210 a signal generating circuit is disposed on the display panel. After the liquid crystal display is turned on, the system end of the liquid crystal display continuously acquires the first voltage signal and the second voltage signal output by the signal generating circuit.
  • an identification interval of the second voltage signal is determined by determining a state change of the first voltage signal.
  • the first voltage signal and the second voltage signal are both in a binary state, that is, two states are defined for the first voltage signal and the second voltage signal, respectively.
  • a high voltage (for example, 3.3 V) of the first voltage signal and the second voltage signal is defined as one signal state
  • a low voltage (eg, 0 V) of the first voltage signal and the second voltage signal is defined as another signal state, and thus,
  • the state change referred to in the embodiment of the present invention refers to a rising edge when a low voltage jumps to a high voltage, or a falling edge when a high voltage jumps to a low voltage.
  • an edge trigger can be used for signal acquisition.
  • the state change mentioned in the embodiment of the present invention may also refer to a negative pulse when the steady state of the signal is a high voltage, and a voltage pulse occurs, or when the steady state of the signal is a low voltage, and occurs. Positive pulse when the voltage jumps.
  • a level trigger can be used for signal acquisition.
  • step S230 a state change of the second voltage signal is detected within the recognition interval defined by the start signal and the end signal.
  • the state change of the second voltage signal is counted after receiving the start signal.
  • the counter can be used to count the second voltage signal, and each time the second voltage signal changes state, the counter value is incremented by one. Stop after receiving the end signal Counting, the count value is taken as the detection result of the second voltage signal.
  • step S240 it is determined by which counter which panel is provided by the supplier, and the parameters are set differently for the panels of different factories, including adjusting the setting of the optical characteristic parameters of the system side, so that the system end is compatible with the display panel.
  • the system side obtains the type information of the display panel by detecting and recognizing the first voltage signal and the second voltage signal outputted by the display panel, and further adjusts the parameter according to the type information of the display panel. Automatic identification and compatibility between the system side and the display panel, thereby reducing the time and cost of error matching.
  • a signal generating circuit for generating a first voltage signal and a second voltage signal is proposed, and a schematic structural view thereof is shown in FIG.
  • the signal generating circuit is composed of thin film transistors M1 and M2 and two resistors having a resistance value R.
  • the gate terminal of the thin film transistor M1 receives the signal C1, the source thereof is connected to the signal ground GND, and the drain thereof is connected to the high through the resistor R.
  • the voltage VDD, the drain of M1 outputs a signal A as a second voltage signal.
  • the gate terminal of the thin film transistor M2 receives the signal C2, the source thereof is connected to the signal ground GND, the drain thereof is connected to the high voltage VDD through the resistor R, and the drain of the M2 outputs the signal B as the first voltage signal.
  • the high voltages at sense terminals A and B correspond to VDD in Figure 3, typically 3.3V, and the low voltage corresponds to GND in Figure 3, typically 0V.
  • M1 When the gate of M1 is at a high level, M1 is turned on, and the detecting terminal A outputs a low level.
  • M1 When the gate of M1 is at a low level, M1 is turned off, and the detecting terminal A outputs a high level.
  • M2 is low level, M2 is turned off, and the detection terminal B outputs a high level.
  • the gate of M2 is high level, M2 is turned on, and the detection terminal B outputs a low level, and the waveforms of A and B are as shown in FIG. .
  • the detection of the A terminal is started, and the counting value is incremented by 1 each time the A terminal detects that the voltage is a negative pulse (ie, a low level signal).
  • the negative pulse that is, the low level signal
  • stop counting and stop detecting the A terminal to obtain the final count value.
  • Signals C1 and C2 are used to set according to the type of display panel. As shown in FIG. 4, in the identification interval determined by the two negative pulse signals at the B terminal, a total of two negative pulses are detected at the A end, that is, the count value is 2, and it can be found through the lookup table that the corresponding panel is No. 2 The supplier adjusts the system parameters so that the adjusted system parameters can be adapted to the characteristics of the No. 2 panel.
  • an automatic identification device for compatibility between a system end and a display panel is further provided.
  • the structure is as shown in FIG. 5, and includes:
  • the detecting module 51 continuously detects the first voltage signal and the second voltage signal output by the display panel.
  • the identification interval determining module 52 determines the identification interval of the second voltage signal according to the state change of the first voltage signal.
  • the identification module 53 detects a change in state of the second voltage signal within the identification interval.
  • the adjustment module 54 obtains the type of the display panel according to the detection result of the second voltage signal, and adjusts the system end according to the type of the display panel to make the system end compatible with the display panel.
  • the embodiments of the present invention are applicable to automatically identify and match the source of the liquid crystal display panel, save cost of control, and improve matching efficiency and matching accuracy.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

公开了一种用于系统端与显示面板兼容的自动识别方法及装置，该自动识别方法根据持续检测显示面板获得的第一电压信号和第二电压信号的状态变化确定显示面板的类型，对系统端进行调整以使系统端与显示面板兼容。该方法和装置解决了基于料号的方式对系统端和显示面板进行搭配时易出现错误的问题，降低了搭配管理的成本。

Description

用于系统端与显示面板兼容的自动识别方法及装置
相关申请的交叉引用
本申请要求享有2016年08月31日提交的名称为“用于系统端与显示面板兼容的自动识别方法及装置”的中国专利申请CN201610791056.2的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明属于液晶显示领域，尤其涉及一种用于系统端与显示面板兼容的自动识别方法及装置。
背景技术
薄膜晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display，TFT LCD)是当前平板显示的主要品种之一，已经成为了现代IT、视讯产品中重要的显示平台。
TFT LCD的主要驱动原理为，系统主板将R/G/B压缩信号、控制信号及动力通过线材与PCB板上的连接器connector相连接，数据经过PCB板上的时序控制器芯片(Timing Controller，TCON)处理后，经PCB板、源极驱动电路(Source-Chip on Film，S-COF)和栅极驱动电路(Gate-Chip on Film，G-COF)与显示面板上显示区连接，从而使得LCD获得所需的电源和信号，如图1所示。
因为不同供应商所提供的显示面板的光学表现等特性不同，不同供应商生产的不同面板在具体使用时对应于不同的系统参数，需要针对不同的显示面板对系统端进行调节，即搭配不同显示面板的系统端设定不同。如果不能正确识别某一个面板是哪一个厂家生产的，会导致系统参数与面板不匹配，从而增加加工时间，加重工作负担。
现有方式是主要通过料号的方式对不同的系统端设定进行管控，管理成本高，且易出现搭配错误。本发明针对上述问题提出解决方案。
发明内容
本发明所要解决的技术问题之一是需要提供一种低成本且准确度高的系统 端与显示面板的搭配方法。
为了解决上述技术问题，本申请的实施例首先提供了一种用于系统端与显示面板兼容的自动识别方法，包括：持续检测显示面板输出的第一电压信号和第二电压信号；根据所述第一电压信号的状态变化确定所述第二电压信号的识别区间；在所述识别区间内对所述第二电压信号的状态变化进行检测；根据对所述第二电压信号的检测结果获取显示面板的类型，并根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容。
优选地，所述根据所述第一电压信号的状态变化确定所述第二电压信号的识别区间，包括：将所述第一电压信号发生的第一次状态变化确定为所述第二电压信号的识别区间的起始点；将所述第一电压信号发生的第二次状态变化确定为所述第二电压信号的识别区间的结束点。
优选地，所述在所述识别区间内对所述第二电压信号的状态变化进行检测，包括：在获取所述第二电压信号的识别区间的起始点后，启动对所述第二电压信号的状态变化进行计数，所述第二电压信号每发生一次状态变化，计数值加一；在获取所述第二电压信号的识别区间的结束点后，停止计数，将所述计数值作为检测结果。
优选地，所述状态变化包括信号发生电压跳变时的上升沿或下降沿。
优选地，所述状态变化包括信号发生电压跳变时的正脉冲或负脉冲。
优选地，所述根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容包括调整系统端的光学特性参数的设定。
本申请的实施例还提供了一种用于系统端与显示面板兼容的自动识别装置，包括：检测模块，其持续检测显示面板输出的第一电压信号和第二电压信号；识别区间确定模块，其根据所述第一电压信号的状态变化确定所述第二电压信号的识别区间；识别模块，其在所述识别区间内对所述第二电压信号的状态变化进行检测；调整模块，其根据对所述第二电压信号的检测结果获取显示面板的类型，并根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容。
优选地，所述识别区间确定模块将所述第一电压信号发生的第一次状态变化确定为所述第二电压信号的识别区间的起始点；将所述第一电压信号发生的第二次状态变化确定为所述第二电压信号的识别区间的结束点。
优选地，所述识别模块在获取所述第二电压信号的识别区间的起始点后，启动对所述第二电压信号的状态变化进行计数，所述第二电压信号每发生一次状态 变化，计数值加一；在获取所述第二电压信号的识别区间的结束点后，停止计数，将所述计数值作为检测结果。
优选地，所述调整模块调整系统端的光学特性参数的设定。
与现有技术相比，上述方案中的一个或多个实施例可以具有如下优点或有益效果：
通过对显示面板发出的第一电压信号和第二电压信号进行识别来确定显示面板的类型，解决了现有技术中基于料号的方式对系统端和显示面板进行搭配时易出现错误的问题，同时降低了搭配管理的成本。
本发明的其他优点、目标，和特征在某种程度上将在随后的说明书中进行阐述，并且在某种程度上，基于对下文的考察研究对本领域技术人员而言将是显而易见的，或者可以从本发明的实践中得到教导。本发明的目标和其他优点可以通过下面的说明书，权利要求书，以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本申请的技术方案或现有技术的进一步理解，并且构成说明书的一部分。其中，表达本申请实施例的附图与本申请的实施例一起用于解释本申请的技术方案，但并不构成对本申请技术方案的限制。
图1为现有技术中薄膜晶体管液晶显示器的驱动架构示意图；
图2为根据本发明一实施例的用于系统端与显示面板兼容的自动识别方法的流程示意图；
图3为根据本发明另一实施例的用于生成第一电压信号和第二电压信号的信号生成电路的结构示意图；
图4为图3所示的信号生成电路的检测波形示意图；
图5为根据本发明又一实施例的用于系统端与显示面板兼容的自动识别装置的结构示意图。
具体实施方式
以下将结合附图及实施例来详细说明本发明的实施方式，借此对本发明如何应用技术手段来解决技术问题，并达成相应技术效果的实现过程能充分理解并据以实施。本申请实施例以及实施例中的各个特征，在不相冲突前提下可以相互结 合，所形成的技术方案均在本发明的保护范围之内。
图2为根据本发明一实施例的用于系统端与显示面板兼容的自动识别方法的流程示意图，如图所示，该方法包括以下步骤：
步骤S210、持续检测显示面板输出的第一电压信号和第二电压信号。
步骤S220、根据第一电压信号的状态变化确定第二电压信号的识别区间。
步骤S230、在识别区间内对第二电压信号的状态变化进行检测。
步骤S240、根据对第二电压信号的检测结果获取显示面板的类型，并根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容。
具体的，在步骤S210中，在显示面板上设置有一个信号生成电路，在液晶显示器开机后，液晶显示器的系统端会持续获取该信号生成电路输出的第一电压信号和第二电压信号。
在步骤S220中，通过判断第一电压信号的状态变化来确定第二电压信号的识别区间。在本发明的实施例中，第一电压信号和第二电压信号均为二值状态，即为第一电压信号和第二电压信号分别定义两个状态。
将第一电压信号和第二电压信号的高电压(例如3.3V)定义为一个信号状态，将第一电压信号和第二电压信号的低电压(例如0V)定义为另一个信号状态，因此，一方面，本发明实施例中所说的状态变化指的是低电压跳变为高电压时的上升沿，或高电压跳变为低电压时的下降沿。实际检测时，可以采用边沿触发器进行信号获取。
另一方面，本发明实施例中所说的状态变化也可以指当信号的稳定状态为高电压时，且发生电压跳变时的负脉冲，或当信号的稳定状态为低电压时，且发生电压跳变时的正脉冲。实际检测时，可以采用电平触发器进行信号获取。
在检测到第一电压信号发生第一次状态变化时，将其确定为第二电压信号的识别区间的起始点，可以生成并输出一个起始信号。在检测到第一电压信号发生第二次状态变化时，将其确定为第二电压信号的识别区间的结束点，可以生成并输出一个结束信号。
接下来，在步骤S230中，在起始信号与结束信号所界定的识别区间内对第二电压信号的状态变化进行检测。
在本发明的一个实施例中，在接收到起始信号后，开始对第二电压信号的状态变化进行计数。具体的，可以采用计数器对第二电压信号进行计数，第二电压信号每发生一次状态变化，使计数器的计数值加一。在接收到结束信号后，停止 计数，将计数值作为对第二电压信号的检测结果。
最后，在步骤S240中，通过这个计数值来判断是哪个供应商提供的面板，对不同厂的面板区别设置参数，包括调整系统端的光学特性参数的设定等，使系统端与显示面板兼容。
本发明实施例的自动识别方法，系统端通过对显示面板输出的第一电压信号和第二电压信号进行检测和识别来获取显示面板的类型信息，并进一步根据显示面板的类型信息进行参数的调整，实现系统端和显示面板之间的自动的识别和兼容，进而减少错误匹配所增加的时间和成本。
在本发明的另一实施例中，提出了一种用于生成第一电压信号和第二电压信号的信号生成电路，其结构示意图如图3所示。
该信号生成电路由薄膜晶体管M1和M2以及两个阻值为R的电阻组成，其中，薄膜晶体管M1的栅极端接收信号C1，其源极接信号地GND，其漏极通过电阻R接一高电压VDD，M1的漏极输出信号A，作为第二电压信号。薄膜晶体管M2的栅极端接收信号C2，其源极接信号地GND，其漏极通过电阻R接一高电压VDD，M2的漏极输出信号B，作为第一电压信号。
检测端A和B的高电压对应于图3中的VDD，一般为3.3V，低电压对应于图3中的GND，一般为0V。当M1的栅极为高电平时，M1开启，检测端A输出低电平，当M1的栅极为低电平时，M1关闭，检测端A输出高电平。当M2的栅极为低电平时，M2关闭，检测端B输出高电平，当M2的栅极为高电平时，M2开启，检测端B输出低电平，A和B的波形如图4所示。
当检测到B端的负脉冲(即为低电平信号)时，启动对A端的检测，并且每当A端检测到电压为负脉冲(即为低电平信号)时，计数值就加1。当B端第二次出现负脉冲(即为低电平信号)时，停止计数并停止检测A端，获取最终的计数值。
信号C1和C2用于根据显示面板的类型进行设定。如图4所示，在B端的两个负脉冲信号确定的识别区间内，A端一共被侦测到两个负脉冲，即计数值为2，可以通过查表得知对应的是2号面板供应商，调整系统参数，使得调整后的系统参数可以适应于2号面板的特性。
在本发明的又一个实施例中，还提供了一种用于系统端与显示面板兼容的自动识别装置，其结构如图5所示，包括：
检测模块51，其持续检测显示面板输出的第一电压信号和第二电压信号。
识别区间确定模块52，其根据第一电压信号的状态变化确定第二电压信号的识别区间。
识别模块53，其在识别区间内对第二电压信号的状态变化进行检测。
调整模块54，其根据对第二电压信号的检测结果获取显示面板的类型，并根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容。
上述各模块的具体功能可以根据前一实施例相应的方法步骤得到，此处不再赘述。
本发明实施例适用于对液晶显示面板的来源进行自动识别并匹配，节约管控成本，调高匹配效率与匹配的准确度。
虽然本发明所揭露的实施方式如上，但所述的内容只是为了便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属技术领域内的技术人员，在不脱离本发明所揭露的精神和范围的前提下，可以在实施的形式上及细节上作任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (12)

  1. 一种用于系统端与显示面板兼容的自动识别方法，包括：
    持续检测显示面板输出的第一电压信号和第二电压信号；
    根据所述第一电压信号的状态变化确定所述第二电压信号的识别区间；
    在所述识别区间内对所述第二电压信号的状态变化进行检测；
    根据对所述第二电压信号的检测结果获取显示面板的类型，并根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容。
  2. 根据权利要求1所述的方法，其中，所述根据所述第一电压信号的状态变化确定所述第二电压信号的识别区间，包括：
    将所述第一电压信号发生的第一次状态变化确定为所述第二电压信号的识别区间的起始点；
    将所述第一电压信号发生的第二次状态变化确定为所述第二电压信号的识别区间的结束点。
  3. 根据权利要求2所述的方法，其中，所述在所述识别区间内对所述第二电压信号的状态变化进行检测，包括：
    在获取所述第二电压信号的识别区间的起始点后，启动对所述第二电压信号的状态变化进行计数，所述第二电压信号每发生一次状态变化，计数值加一；
    在获取所述第二电压信号的识别区间的结束点后，停止计数，将所述计数值作为检测结果。
  4. 根据权利要求1所述的方法，其中，所述状态变化包括信号发生电压跳变时的上升沿或下降沿。
  5. 根据权利要求1所述的方法，其中，所述状态变化包括信号发生电压跳变时的正脉冲或负脉冲。
  6. 根据权利要求4所述的方法，其中，所述根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容包括调整系统端的光学特性参数的设定。
  7. 一种用于系统端与显示面板兼容的自动识别装置，包括：
    检测模块，其持续检测显示面板输出的第一电压信号和第二电压信号；
    识别区间确定模块，其根据所述第一电压信号的状态变化确定所述第二电压信号的识别区间；
    识别模块，其在所述识别区间内对所述第二电压信号的状态变化进行检测；
    调整模块，其根据对所述第二电压信号的检测结果获取显示面板的类型，并 根据显示面板的类型对系统端进行调整以使系统端与显示面板兼容。
  8. 根据权利要求7所述的装置，其中，所述识别区间确定模块将所述第一电压信号发生的第一次状态变化确定为所述第二电压信号的识别区间的起始点；将所述第一电压信号发生的第二次状态变化确定为所述第二电压信号的识别区间的结束点。
  9. 根据权利要求8所述的装置，其中，所述识别模块在获取所述第二电压信号的识别区间的起始点后，启动对所述第二电压信号的状态变化进行计数，所述第二电压信号每发生一次状态变化，计数值加一；在获取所述第二电压信号的识别区间的结束点后，停止计数，将所述计数值作为检测结果。
  10. 根据权利要求9所述的装置，其中，所述调整模块调整系统端的光学特性参数的设定。
  11. 一种信号生成电路，所述信号生成电路设置于显示面板上，用于生成第一电压信号和第二电压信号，该信号生成电路包括第一薄膜晶体管、第一电阻、第二薄膜晶体管及第二电阻，
    所述第一薄膜晶体管的栅极连接第一输入信号，其漏极通过所述第一电阻连接高电平信号，其源极连接信号地，由漏极与所述第一电阻的连接节点处生成并输出第一电压信号；
    所述第二薄膜晶体管的栅极连接第二输入信号，其漏极通过所述第二电阻连接高电平信号，其源极连接信号地，由漏极与所述第二电阻的连接节点处生成并输出第二电压信号。
  12. 根据权利要求11所述的信号生成电路，其中，所述第一输入信号与所述第二输入信号根据显示面板的类型进行设定。
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