WO2019041396A1 - 显示面板中软件数据的保护方法及其系统 - Google Patents

显示面板中软件数据的保护方法及其系统 Download PDF

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Publication number
WO2019041396A1
WO2019041396A1 PCT/CN2017/102198 CN2017102198W WO2019041396A1 WO 2019041396 A1 WO2019041396 A1 WO 2019041396A1 CN 2017102198 W CN2017102198 W CN 2017102198W WO 2019041396 A1 WO2019041396 A1 WO 2019041396A1
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Prior art keywords
display panel
software data
write protection
state
unit
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PCT/CN2017/102198
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English (en)
French (fr)
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王明良
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Priority to US15/580,627 priority Critical patent/US20190066632A1/en
Publication of WO2019041396A1 publication Critical patent/WO2019041396A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
    • 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

Definitions

  • the present application relates to the field of display technologies, and in particular, to a method and a system for protecting software data in a display panel.
  • a liquid crystal display is one of the most widely used flat panel displays, and includes two substrates having a pixel electrode, a common electrode, and the like, and a liquid crystal layer interposed between the two substrates.
  • the liquid crystal display displays an image by determining an orientation of liquid crystal molecules of a liquid crystal layer and controlling polarization of incident light by an electric field generated by a voltage applied to the electrodes.
  • the liquid crystal display is advantageous for displaying a moving image and having high contrast, and thus replaces the existing cathode ray tube, and is used differently as a display device (notebook monitor or the like) of a mobile terminal, a computer monitor, a television, or the like.
  • EEPROM programmable erasable memory IC
  • model information for example, resolution and timing
  • TCON Timing Control Chip
  • MCU micro-processing unit
  • TCON timing control chip
  • WP is the write protection signal of EEPROM. Under normal state, it is H, that is, it must be in write protection state under normal state. However, the problem that is more prone to occur now is that WP may also be invalidated due to wire or other interference during the production process, and the I2C protocol communication is not normal, then there may be a malfunction of the TCON stored in the EEPROM. The code is rewritten, and today there is no error correction mechanism, then it is impossible to prevent this situation, which will cause the display screen to be abnormal and the error to occur frequently.
  • the present application provides a method and system for protecting software data in a display panel
  • the timing control unit detects the write protection signal, and when detecting that the write protection signal fails, the timing control unit does not read the TCON code, thereby preventing the software data on the storage unit from being rewritten, thereby avoiding the display panel. The occurrence of the screen abnormality is displayed.
  • a method for protecting software data in a display panel includes the following steps: providing a display panel and a storage unit, wherein the storage unit is disposed on a driving board in the display panel, Storing a write protection information and software data of a timing control unit; detecting, by the information detecting unit in the timing control unit, the write protection signal a state of the information; when the state of the write protection information is a write protection failure state, an MCU micro processing unit in the timing control unit refuses to read the software data of the timing control unit.
  • the method further includes: when the state of the write protection information detected by the information detecting unit is a write protection state, the MCU micro processing unit reads the timing through a serial communication unit (eg, an I2C bus) The software data of the control unit outputs various control signals for driving the display panel.
  • a serial communication unit eg, an I2C bus
  • the method further includes: when the state of the write protection information detected by the information detecting unit is a write protection state, the MCU micro processing unit prohibits rewriting the software data on the storage unit.
  • the method further includes: when the state of the write protection information detected by the information detecting unit is a write protection failure state, the MCU micro processing unit prohibits rewriting the software data on the storage unit.
  • the method further includes: when the state of the write protection information detected by the information detecting unit is a write protection release state, the MCU micro processing unit allows the software data to be rewritten on the storage unit.
  • a protection system for software data in a display panel includes: a display panel; a storage unit disposed on a driving board in the display panel for storing a write protection information and a timing control unit Software data; the timing control unit, disposed in the display panel, includes: an information detecting unit that detects a state of the write protection information; an MCU micro processing unit, when the state of the write protection information When writing a protection failure state, the software data of the timing control unit is refused to be read.
  • the MCU micro processing unit further includes: when the state of the write protection information detected by the information detecting unit is a write protection state, the reading is performed by a serial communication unit (for example, an I2C bus)
  • the software data of the timing control unit outputs various control signals for driving the display panel.
  • the MCU micro processing unit further includes: when the state of the write protection information detected by the information detecting unit is a write protection state or a write protection failure state, prohibiting rewriting on the storage unit Software data.
  • the MCU micro processing unit further includes: when the state of the write protection information detected by the information detecting unit is a write protection release state, allowing the software data to be rewritten on the storage unit.
  • a method for protecting software data in a display panel includes: providing a display panel and a storage unit, wherein the storage unit is disposed on a driving board in the display panel, Storing a write protection information and software data of a timing control unit; detecting the write protection information by using a information detecting unit in the timing control unit a state in which the write protection information is in a write protection failure state, an MCU micro processing unit in the timing control unit rejects reading software data of the timing control unit; wherein the storage unit passes A serial communication unit (eg, an I2C bus) is coupled to the timing control unit; the memory unit is an erasable programmable read only memory EEPROM.
  • a serial communication unit eg, an I2C bus
  • the present application provides a display panel and a storage unit, wherein the storage unit is disposed on a driving board of the display panel for storing a write protection information and a timing control unit.
  • Software data detecting, by the timing control unit, a state of the write protection information, when the state of the write protection information is a write protection failure state, an MCU micro processing unit in the timing control unit refuses to read Taking the software data code of the timing control unit; the timing control unit TCON is used as the source of the I2C signal. If the timing control unit TCON does not output the I2C signal, even if the backend cable or other interference does not substantially affect the I2C signal. At this time, the software data in the memory cell EEPROM is not rewritten. When the power is turned back on, as long as the signal level of the write protection wp returns to normal, the timing control unit TCON still reads the memory correctly. The software data code of TCON in the unit, so that the picture is displayed correctly.
  • FIG. 1 is a schematic diagram of a communication architecture of a timing control unit and a storage unit in an exemplary display panel.
  • FIG. 2 is a schematic structural diagram of a software data protection system in a display panel according to the present application.
  • FIG. 3 is a schematic flowchart of a method for protecting software data in a display panel according to the present application.
  • FIG. 1 is a schematic diagram of a communication architecture of a timing control unit and a storage unit in an exemplary display panel.
  • a display panel 100 is disposed on a driving board of the display panel 100 for storing a write protection information 111 and software data 112 of a timing control unit 120.
  • the timing control unit 120 is disposed in the display panel 100 and includes an MCU micro processing unit 121. At the time of power on, the MCU micro processing unit 121 inside the timing control unit 120 passes through a serial communication unit (for example, an I2C bus).
  • the software data 112 of the timing control unit 120 stored in the storage unit 110 is read to complete the initialization setting of the timing control unit 120.
  • WP is the write protection information 111 of the storage unit 110, it is H in the normal state, that is, it is in the write protection state in the normal state; however, the problem that is relatively easy to occur now is that the WP may be caused by wire or other interference during the production process.
  • FIG. 2 is a schematic structural diagram of a software data protection system in a display panel according to the present application.
  • a protection system for software data in a display panel includes: a display panel 100; a storage unit 110 disposed on a driving board in the display panel 100 for storing a The protection information 111 and the software data 112 of the sequence control unit 120 are provided.
  • the timing control unit 120 is disposed in the display panel 100 and includes: an information detecting unit 122 that detects the state of the write protection information 111.
  • An MCU micro processing unit 121 rejects reading the software data 112 of the timing control unit 120 when the state of the write protection information 111 is a write protection failure state.
  • the method further includes: adding the detection of the write protection information 111 by the timing control unit 120, the write protection information 111 being the first level of whether the storage unit 110 is to be rewritten; if the write protection information 111 is activated, that is, storing The unit 110 is always in the write-protected state, so that no matter how the I2C signal changes, the software data 112 in the storage unit 110 is not overwritten.
  • the timing control unit 120 when the write protection information 111 is H, the write protection is started; when the write protection information 111 is L, the write protection is invalid. Then, at the time of power on, the information detecting unit 122 in the timing control unit 120 first detects the state of the write protection information 111. When it is detected that the state of the write protection information 111 is the write protection failure state, the MCU micro processing unit 121 in the timing control unit 120 does not read the software data 112 in the storage unit 110. The timing control unit 120 serves as the source of the I2C signal. If the timing control unit 120 does not output the I2C signal, even if the backend cable or other interference does not substantially affect the I2C signal, the memory unit does not appear. 110 was rewritten. When the power is turned on, as long as the signal level of the write protection information 111 returns to normal, the timing control unit 120 still reads the software data 112 correctly to output various control signals for driving the display panel, thereby correct Display the screen.
  • an electrically erasable programmable read only memory (EEPROM) or the like is used as the memory unit 110.
  • the EEPROM is a storage device that stores data even when it is turned off, and performs data transmission and reception with the timing control unit 120 through a serial communication unit (for example, a 12C bus).
  • 12C is a two-wire serial communication interface and a data communication method between integrated circuits composed of a serial data line (SDA) and a serial clock line (SCL).
  • the method further includes: the status of the write protection information 111 detected by the information detecting unit 122.
  • the software data 112 of the timing control unit 120 is read by a serial communication unit (for example, an I2C bus) to output various control signals for driving the display panel 100.
  • the method further includes: when the state of the write protection information 111 detected by the information detecting unit 122 is a write protection state or a write protection failure state, prohibiting rewriting on the storage unit 110 Software data 112 is described.
  • the method further includes: when the state of the write protection information 111 detected by the information detecting unit 122 is a write protection release state, allowing the software data 112 to be rewritten on the storage unit 110. .
  • the display panel 100 is specifically described by taking a liquid crystal display panel as an example: the liquid crystal display panel has a matrix type obtained by arranging a plurality of gate lines and a plurality of data lines in mutually perpendicular directions to each other Pixel area. Each of these pixel regions includes a thin film transistor (TFT) and a liquid crystal capacitor (Clc) connected to the TFT.
  • the liquid crystal capacitor (Clc) is composed of a pixel electrode connected to the TFT and a common electrode interposed between the pixel electrode and the liquid crystal.
  • the TFT supplies a data voltage from each of the data lines to the pixel electrode in response to a scan pulse from each of the gate lines.
  • the liquid crystal capacitor (Clc) charges a difference voltage between a data voltage supplied to the pixel electrode and a reference common voltage supplied to the common electrode, and changes the orientation of the liquid crystal molecules according to the difference voltage, thereby controlling the light transmittance. Further, a storage capacitor (Cst) is connected in parallel with the liquid crystal capacitor (Clc) to maintain the voltage charged in the liquid crystal capacitor until the next data signal is supplied.
  • the timing control unit reads the software data stored in the storage unit to output an operation signal for operating the DC-DC converter and various control signals for operating the liquid crystal display panel.
  • the timing control unit inputs the input/output control clock CLK to the storage unit to receive the driving information and the image data modulation information of the liquid crystal display panel, and controls the gate driver and the data driver based on the driving information and the image data modulation information;
  • the data driver receives the corrected video signal from the timing control unit to convert it to a corrected data signal (which is an analog signal) and provides the corrected data signal to a corresponding data line of the liquid crystal display panel.
  • the storage unit stores the size of the liquid crystal display panel, resolution conversion information, image data modulation information, driving frequency, and driving timing information of the timing control unit, and the like. Further, when the input/output control clock is input, the storage unit supplies the stored drive information, image data modulation information, and the like to the timing control unit.
  • FIG. 3 is a schematic flowchart of a method for protecting software data in a display panel according to the present application. Including the following steps:
  • Step S310 providing a display panel and a storage unit; wherein the storage unit is disposed on a driving board of the display panel for storing a write protection information and software data of a timing control unit.
  • Step S320 detecting, by an information detecting unit in the timing control unit, a state of the write protection information
  • Step S330 When the state of the write protection information is a write protection failure state, an MCU micro processing unit in the timing control unit refuses to read software data of the timing control unit.
  • an electrically erasable programmable read only memory (EEPROM) or the like is used as the memory unit.
  • the EEPROM is a storage device that stores data even when it is turned off, and performs data transmission and reception with the timing control unit through a serial communication unit (for example, a 12C bus).
  • 12C is a two-wire serial communication interface and a data communication method between integrated circuits composed of a serial data line (SDA) and a serial clock line (SCL).
  • the method further includes: when the state of the write protection information detected by the information detecting unit is a write protection state, the MCU micro processing unit reads through a serial communication unit (for example, an I2C bus) The software data of the timing control unit is taken to output various control signals for driving the display panel.
  • a serial communication unit for example, an I2C bus
  • the MCU micro processing unit prohibits rewriting the software on the storage unit when the state of the write protection information detected by the information detecting unit is a write protection state. data.
  • the MCU micro processing unit prohibits rewriting the storage unit on the storage unit when the state of the write protection information detected by the information detecting unit is a write protection failure state.
  • Software data
  • the method further includes: when the state of the write protection information detected by the information detecting unit is a write protection release state, the MCU micro processing unit is allowed to overwrite the storage unit Software data.
  • the display panel may be a TN, OCB, or VA type TFT liquid crystal display panel, but is not limited thereto.
  • the display panel of the display device may be a liquid crystal display panel having a curved panel.
  • the display panel may also be, for example, an OLED display panel, a QLED display panel, a curved display panel, or other display panel.
  • the application provides a method for protecting software data in a display panel and a system thereof.
  • the timing control unit TCON is used as the source of the I2C signal. If the timing control unit TCON does not output the I2C signal, even if the back end cable or other interference does not have a substantial effect on the I2C signal, the memory unit will not appear.
  • the software data in the EEPROM is rewritten.
  • the timing control unit TCON will still correctly read the software data code of the TCON in the memory unit to complete the TCON.
  • the settings are initialized to output various control signals for driving the display panel; and a stable timing control signal is used to control stable display of the display panel screen.

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Abstract

一种显示面板（100）中软件数据（112）的保护方法及其系统，包括如下步骤：提供一显示面板（100）及一存储单元（110），其中，此存储单元（110）设置在此显示面板（100）中的一驱动板上，用来存储一写保护信息（111）及一时序控制单元（120）的软件数据（112）；通过此时序控制单元（120）中的一信息侦测单元（122），侦测此写保护信息（111）的状态；当此写保护信息（111）的状态为写保护失效状态时，此时序控制单元（120）中的一MCU微处理单元（121），拒绝读取此时序控制单元（120）的软件数据（112）。

Description

显示面板中软件数据的保护方法及其系统 技术领域
本申请涉及显示技术领域，具体涉及一种显示面板中软件数据的保护方法及其系统。
背景技术
液晶显示器是被最广泛使用的平板显示器中的一种，并包括具有像素电极、公共电极等的两个基板、以及插设在两个基板之间的液晶层。液晶显示器通过由施加到电极的电压产生的电场确定液晶层的液晶分子的取向并控制入射光的偏振来显示图像。液晶显示器有利于显示运动图像并具有高对比度，因而替代现有的阴极射线管，并且不同地用作移动终端的显示装置(笔记本监视器等)、计算机监视器、电视等。
在液晶显示面板的驱动板上，有一颗可编程可擦除型存储IC(EEPROM)，其在系统引导过程期间从系统读取型号信息(例如，分辨率和定时)，以将该型号信息发送到液晶驱动电路单元。该EEPROM是一种可读和可写存储器，来存储时序控制芯片(TCON)的软件code设定。可是在工厂实际的生产过程中，经常容易发生EEPROM中存储的TCON code被改写的事情。在刚开机的时候，时序控制芯片(TCON)内部的微处理单元(MCU)会通过I2C协议去读取EEPROM里面存储的TCON code，完成TCON的初始化设定。WP是EEPROM的写保护信号，常态下为H，即正常状态下都要处于写保护状态。可是现在比较容易出现的问题是，由于生产过程中可能由于线材或其他干扰，导致WP也会被失效，且I2C协议通信也不正常，那么就有可能会出现误动作而导致EEPROM里面存储的TCON code被改写，而现今并没有纠错机制，那么就无法防范这种情况，进而会造成显示画面异常，错误频出。
发明内容
针对上述现有技术的缺点，本申请提供一种显示面板中软件数据的保护方法及其系统，
增加时序控制单元对写保护信号的侦测，当侦测到写保护信号失效时，时序控制单元不去读取TCON code，由此可以避免存储单元上所述软件数据被改写，进而避免显示面板所显示画面异常情况的发生。
本申请的目的与解决其技术问题可采用以下技术方案来实现。
依据本申请提出的一种显示面板中软件数据的保护方法，包括如下步骤：提供一显示面板及一存储单元，其中，所述存储单元设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；通过所述时序控制单元中的一信息侦测单元，侦测所述写保护信 息的状态；当所述写保护信息的状态为写保护失效状态时，所述时序控制单元中的一MCU微处理单元，拒绝读取所述时序控制单元的软件数据。
其中，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述MCU微处理单元通过串行通信单元(例如I2C总线)读取所述时序控制单元的软件数据，以输出用于驱动所述显示面板的各种控制信号。
其中，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述MCU微处理单元禁止在所述存储单元上改写所述软件数据。
其中，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护失效状态时，所述MCU微处理单元禁止在所述存储单元上改写所述软件数据。
其中，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护释放状态时，所述MCU微处理单元允许在所述存储单元上改写所述软件数据。
本申请的目的与解决其技术问题还可采用以下技术措施进一步实现。
本申请提出的一种显示面板中软件数据的保护系统，包括：一显示面板；一存储单元，设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；所述时序控制单元，设置在所述显示面板中，包括：一信息侦测单元，侦测所述写保护信息的状态；一MCU微处理单元，当所述写保护信息的状态为写保护失效状态时，拒绝读取所述时序控制单元的软件数据。
其中，所述MCU微处理单元，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，通过串行通信单元(例如I2C总线)读取所述时序控制单元的软件数据，以输出用于驱动所述显示面板的各种控制信号。
其中，所述MCU微处理单元，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态或写保护失效状态时，禁止在所述存储单元上改写所述软件数据。
其中，所述MCU微处理单元，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护释放状态时，允许在所述存储单元上改写所述软件数据。
本申请提出的另一目的的一种显示面板中软件数据的保护方法，包括：提供一显示面板及一存储单元，其中，所述存储单元设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；通过所述时序控制单元中的一信息侦测单元，侦测所述写保护信息 的状态；当所述写保护信息的状态为写保护失效状态时，所述时序控制单元中的一MCU微处理单元，拒绝读取所述时序控制单元的软件数据；其中，所述存储单元通过串行通信单元(例如I2C总线)连接所述时序控制单元；所述存储单元为可擦除可编程型只读存储器EEPROM。
藉由以上技术方案和措施，本申请提供一显示面板及一存储单元，其中，所述存储单元设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；通过所述时序控制单元侦测所述写保护信息的状态，当所述写保护信息的状态为写保护失效状态时，所述时序控制单元中的一MCU微处理单元，拒绝读取所述时序控制单元的软件数据code；时序控制单元TCON作为I2C信号的源头，如果时序控制单元TCON不输出I2C信号，那么即便后端有线材或其他干扰，也不会对I2C信号产生实质性作用，这时也就不会出现存储单元EEPROM中软件数据被改写的情形了；当重新开机时，只要写保护wp的信号准位恢复正常，那么时序控制单元TCON仍然会去正确地读取存储单元中TCON的软件数据code，从而正确地显示画面。
附图说明
图1为范例性的显示面板中时序控制单元与存储单元的通信架构示意图。
图2为本申请提出的一种显示面板中软件数据的保护系统的架构示意图。
图3为本申请提出的一种显示面板中软件数据的保护方法的流程示意图。
具体实施方式
为更进一步阐述本申请一种显示面板中软件数据的保护方法及其系统的为达成预定申请目的所采取的技术手段及其达成的功效，以下结合附图及较佳实施例，对依据本申请提出的显示面板中软件数据的保护方法及其系统之具体实施方式、结构、特征及其功效，做一详细说明。
请参照图1，其为范例性的显示面板中时序控制单元与存储单元的通信架构示意图。
在图1中，一显示面板100；一存储单元110，设置在所述显示面板100中的一驱动板上，用来存储一写保护信息111及一时序控制单元120的软件数据112；所述时序控制单元120，设置在所述显示面板100中，包括一MCU微处理单元121；在刚开机的时候，时序控制单元120内部的MCU微处理单元121，会通过串行通信单元(例如I2C总线)去读取存储单元110里面存储的时序控制单元120的软件数据112，完成时序控制单元120的初始化设定。由于WP是存储单元110的写保护信息111，常态下为H，即正常状态下都要处于写保护状态；可是现在比较容易出现的问题是，由于生产过程中可能由于线材或其他干扰，导致WP也会被失效，且I2C协议通信也不正常， 那么就有可能会出现误动作而导致存储单元110里面存储的时序控制单元120的软件数据112被改写；当时序控制单元120内部的MCU微处理单元121读取被改写后的软件数据时，就可能会造成读取错误，不能完成时序控制单元120的初始化设定；进而导致不能正确输出用于驱动所述显示面板的各种控制信号，造成显示画面异常，错误频出；而现今并没有纠错机制，那么就无法防范这种情况。
请参照图2，其为本申请提出的一种显示面板中软件数据的保护系统的架构示意图。
在图2中，本申请提出的一种显示面板中软件数据的保护系统，包括；一显示面板100；一存储单元110，设置在所述显示面板100中的一驱动板上，用来存储一写保护信息111及一时序控制单元120的软件数据112；所述时序控制单元120，设置在所述显示面板100中，包括：一信息侦测单元122，侦测所述写保护信息111的状态；一MCU微处理单元121，当所述写保护信息111的状态为写保护失效状态时，拒绝读取所述时序控制单元120的软件数据112。
在一实施例中，还包括，增加时序控制单元120对写保护信息111的侦测，写保护信息111是存储单元110是否会被改写的第一道关卡；如果写保护信息111启动，即存储单元110一直处于写保护状态，那么无论I2C信号怎么变化，都不会导致存储单元110里面的软件数据112被改写。
具体的，对于存储单元110来说，写保护信息111为H时，写保护启动；写保护信息111为L时，写保护失效。那么在刚开机的时候，时序控制单元120中的信息侦测单元122，会首先侦测写保护信息111的状态。当侦测到写保护信息111的状态为写保护失效状态时，时序控制单元120中的MCU微处理单元121，便不去读取存储单元110里面的软件数据112。时序控制单元120作为I2C信号的源头，如果时序控制单元120不输出I2C信号，那么即便后端有线材或其他干扰，也不会对I2C信号产生实质性作用，这时也就不会出现存储单元110被改写的情形了。当重新开机时，只要写保护信息111的信号准位恢复正常，那么时序控制单元120仍然会去正确地读取软件数据112，以输出用于驱动所述显示面板的各种控制信号，从而正确地显示画面。
在一实施例中，还包括：电可擦除可编程只读存储器(EEPROM)等被用作所述存储单元110。EEPROM是一种即使被关闭也存储数据的存储装置，并且通过串行通信单元(例如，12C总线)执行与时序控制单元120的数据发送和接收。12C是一种二线串行通信接口以及一种由串行数据线(SDA)和串行时钟线(SCL)构成的集成电路之间的数据通信方法。
在一实施例中，还包括：当所述信息侦测单元122侦测到的所述写保护信息111的状态 为写保护状态时，通过串行通信单元(例如I2C总线)读取所述时序控制单元120的软件数据112，以输出用于驱动所述显示面板100的各种控制信号。
在一实施例中，还包括：当所述信息侦测单元122侦测到的所述写保护信息111的状态为写保护状态或写保护失效状态时，禁止在所述存储单元110上改写所述软件数据112。
在一实施例中，还包括：当所述信息侦测单元122侦测到的所述写保护信息111的状态为写保护释放状态时，允许在所述存储单元110上改写所述软件数据112。
在一实施例中，还包括：显示面板100以液晶显示面板为例具体说明如下：液晶显示面板具有通过沿彼此互相垂直的方向布置多个选通线和多个数据线而获得的矩阵型的像素区域。这些像素区域中的每一个包括薄膜晶体管(TFT)和连接到该TFT的液晶电容器(Clc)。液晶电容器(Clc)由连接到该TFT的像素电极和插设该像素电极和液晶之间的公共电极构成。该TFT响应于来自每个选通线的扫描脉冲将数据电压从每个数据线提供到像素电极。液晶电容器(Clc)充入提供到像素电极的数据电压与提供到公共电极的参考公共电压之间的差电压(differenceoltage)，并且根据该差电压改变液晶分子的取向，从而控制光透射率。此外，储存电容器(Cst)与液晶电容器(Clc)并联地连接，以保持液晶电容器中充入的电压，直到下一数据信号被提供为止。
时序控制单元读取存储单元中存储的软件数据，以输出用于操作DC-DC转换器的操作信号和用于操作液晶显示面板的各种控制信号。这里，时序控制单元将输入/输出控制时钟CLK输入到存储单元，以接收液晶显示面板的驱动信息和图像数据调制信息，并且基于该驱动信息和该图像数据调制信息控制选通驱动器和数据驱动器；数据驱动器接收来自时序控制单元的经校正的视频信号，以将其转换为经校正的数据信号(其为模拟信号)，并且将该经校正的数据信号提供到液晶显示面板的相应的数据线。
存储单元存储液晶显示面板的尺寸、分辨率转换信息、图像数据调制信息、驱动频率以及时序控制单元的驱动定时信息等等。此外，当输入/输出控制时钟被输入时，存储单元将所存储的驱动信息、图像数据调制信息等提供到时序控制单元。
请参照图3，其为本申请提出的一种显示面板中软件数据的保护方法的流程示意图。包括如下步骤：
步骤S310:提供一显示面板及一存储单元；其中，所述存储单元设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据。
步骤S320:通过所述时序控制单元中的一信息侦测单元，侦测所述写保护信息的状态；
步骤S330:当所述写保护信息的状态为写保护失效状态时，所述时序控制单元中的一MCU微处理单元，拒绝读取所述时序控制单元的软件数据。
在一实施例中，还包括：电可擦除可编程只读存储器(EEPROM)等被用作所述存储单元。EEPROM是一种即使被关闭也存储数据的存储装置，并且通过串行通信单元(例如，12C总线)执行与时序控制单元的数据发送和接收。12C是一种二线串行通信接口以及一种由串行数据线(SDA)和串行时钟线(SCL)构成的集成电路之间的数据通信方法。
在一实施例中，还包括:当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述MCU微处理单元通过串行通信单元(例如I2C总线)读取所述时序控制单元的软件数据，以输出用于驱动所述显示面板的各种控制信号。
在一实施例中，还包括:当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述MCU微处理单元禁止在所述存储单元上改写所述软件数据。
在一实施例中，还包括:当所述信息侦测单元侦测到的所述写保护信息的状态为写保护失效状态时，所述MCU微处理单元禁止在所述存储单元上改写所述软件数据。
在一实施例中，还包括:当所述信息侦测单元侦测到的所述写保护信息的状态为写保护释放状态时，所述MCU微处理单元允许在所述存储单元上改写所述软件数据。
在一实施例中，还包括：显示面板可以采用TN、OCB、VA型TFT液晶显示面板，但并不限于此。显示装置的显示面板可以为具有曲面面板的液晶显示面板。其中，显示面板还可例如为OLED显示面板、QLED显示面板、曲面显示面板或其他显示面板。
本申请提供了一种显示面板中软件数据的保护方法及其系统。提供一显示面板及一存储单元，其中，所述存储单元设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；通过所述时序控制单元中的一信息侦测单元，侦测所述写保护信息的状态；当所述写保护信息的状态为写保护失效状态时，所述时序控制单元中的一MCU微处理单元，拒绝读取所述时序控制单元的软件数据。时序控制单元TCON作为I2C信号的源头，如果时序控制单元TCON不输出I2C信号，那么即便后端有线材或其他干扰，也不会对I2C信号产生实质性作用，这时也就不会出现存储单元EEPROM中软件数据被改写的情形了；当重新开机时，只要写保护信息的信号准位恢复正常，那么时序控制单元TCON仍然会去正确地读取存储单元中TCON的软件数据code，完成TCON的初始化设定，以输出用于驱动所述显示面板的各种控制信号；通过可靠的时序控制信号，以控制显示面板画面的稳定显示。
以上所述，仅是本申请的较佳实施例而已，并非对本申请作任何形式上的限制，虽然本申请已以较佳实施例揭露如上，然而并非用以限定本申请，任何熟悉本专业的技术人员，在不脱离本申请技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本申请技术方案的内容，依据本申请的技术实质对以上实施例所作的任何简单修改与等同变化与修饰，均仍属于本申请技术方案的范围内。

Claims (17)

  1. 一种显示面板中软件数据的保护方法，包括：
    提供一显示面板及一存储单元，其中，所述存储单元设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；
    通过所述时序控制单元中的一信息侦测单元，侦测所述写保护信息的状态；
    当所述写保护信息的状态为写保护失效状态时，所述时序控制单元中的一微处理单元，拒绝读取所述时序控制单元的软件数据。
  2. 根据权利要求1所述的显示面板中软件数据的保护方法，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述微处理单元通过串行通信单元读取所述时序控制单元的软件数据。
  3. 根据权利要求2所述的显示面板中软件数据的保护方法，还包括：所述微处理单元输出用于驱动所述显示面板的各种控制信号。
  4. 根据权利要求1所述的显示面板中软件数据的保护方法，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述微处理单元禁止在所述存储单元上改写所述软件数据。
  5. 根据权利要求1所述的显示面板中软件数据的保护方法，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护失效状态时，所述微处理单元禁止在所述存储单元上改写所述软件数据。
  6. 根据权利要求1所述的显示面板中软件数据的保护方法，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护释放状态时，所述微处理单元允许在所述存储单元上改写所述软件数据。
  7. 根据权利要求1所述的显示面板中软件数据的保护方法，其中，所述存储单元通过串行通信单元连接所述时序控制单元。
  8. 根据权利要求1所述的显示面板中软件数据的保护方法，其中，所述存储单元为可擦除可编程型只读存储器。
  9. 一种显示面板中软件数据的保护系统，包括：
    一显示面板；
    一存储单元，设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；
    所述时序控制单元，设置在所述显示面板中，包括：
    一信息侦测单元，侦测所述写保护信息的状态；
    一微处理单元，当所述写保护信息的状态为写保护失效状态时，拒绝读取所述时序控制单 元的软件数据。
  10. 根据权利要求9所述的显示面板中软件数据的保护系统，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述微处理单元通过串行通信单元读取所述时序控制单元的软件数据。
  11. 根据权利要求10所述的显示面板中软件数据的保护系统，还包括：所述微处理单元输出用于驱动所述显示面板的各种控制信号。
  12. 根据权利要求9所述的显示面板中软件数据的保护系统，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护状态时，所述微处理单元禁止在所述存储单元上改写所述软件数据。
  13. 根据权利要求9所述的显示面板中软件数据的保护系统，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护失效状态时，所述微处理单元禁止在所述存储单元上改写所述软件数据。
  14. 根据权利要求9所述的显示面板中软件数据的保护系统，还包括：当所述信息侦测单元侦测到的所述写保护信息的状态为写保护释放状态时，所述微处理单元允许在所述存储单元上改写所述软件数据。
  15. 根据权利要求9所述的显示面板中软件数据的保护系统，其中，所述存储单元通过串行通信单元连接所述时序控制单元。
  16. 根据权利要求9所述的显示面板中软件数据的保护系统，其中，所述存储单元为可擦除可编程型只读存储器。
  17. 一种显示面板中软件数据的保护方法，包括：
    提供一显示面板及一存储单元，其中，所述存储单元设置在所述显示面板中的一驱动板上，用来存储一写保护信息及一时序控制单元的软件数据；
    通过所述时序控制单元中的一信息侦测单元，侦测所述写保护信息的状态；
    当所述写保护信息的状态为写保护失效状态时，所述时序控制单元中的一微处理单元，拒绝读取所述时序控制单元的软件数据；
    其中，所述存储单元通过串行通信单元连接所述时序控制单元；所述存储单元为可擦除可编程型只读存储器。
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