WO2019080331A1 - 显示装置 - Google Patents

显示装置

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Publication number
WO2019080331A1
WO2019080331A1 PCT/CN2017/117651 CN2017117651W WO2019080331A1 WO 2019080331 A1 WO2019080331 A1 WO 2019080331A1 CN 2017117651 W CN2017117651 W CN 2017117651W WO 2019080331 A1 WO2019080331 A1 WO 2019080331A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
control
module
control signal
potential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/117651
Other languages
English (en)
French (fr)
Inventor
黄北洲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Original Assignee
HKC Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HKC Co Ltd filed Critical HKC Co Ltd
Priority to US16/068,177 priority Critical patent/US20210192092A1/en
Publication of WO2019080331A1 publication Critical patent/WO2019080331A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F21/81—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/74—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information operating in dual or compartmented mode, i.e. at least one secure mode
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G09G3/2092—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
    • 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
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • 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
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD
    • 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
    • G09G2330/04—Display protection
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2358/00—Arrangements for display data security
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Definitions

  • the present application relates to the field of display, and in particular to a display device having an encryption module.
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • PCB printed circuit board
  • TCON Timing Controller
  • S-COF Source-Chip on Film
  • G-COF Gate-Chip on
  • the output settings of the system board may vary according to the different needs of the panel supplier and subsequent processors, so the system board may appear during the assembly process of the system board.
  • the PCB does not match, and the wrong matching and connection may cause malfunction or damage inside the PCB, resulting in poor display device.
  • an object of the present application is to provide a display device having an encryption module.
  • a display device includes: a control module, providing a power signal and a plurality of control signals, and determining a matching signal provided by the system board to the printed circuit board, wherein the control module is configured according to the control module The result of the determination of the matching signal is such that the control module has a first operating mode or a second operating mode; the encryption module is coupled to the control module to receive and transmit the power signal, wherein the encryption module has multiple
  • the switch includes: a first switch, a control end of the first switch coupled to the first control signal, the first end coupled to the control module; and a second switch, the control end of the second switch coupled to the second control The first end is coupled to the second end of the first switch, and the third end is coupled to the third control signal, the first end is coupled to the second end of the second switch a fourth switch, the control end of the fourth switch is coupled to the fourth control signal, the first end is coupled to the second end of the third switch,
  • the first control signal, the second control signal, the third control signal, and the fourth control signal comprise two potential states, a first potential and a second potential, and Provided by the control module.
  • the first control signal and the second control signal are output as a first potential
  • the third control signal, and the third The four control signal outputs are the second potential.
  • the first switch, the second switch, the third switch, and the fourth switch are in an open state, and a connection between the control module and the display module is And the control module outputs the power signal to the display module.
  • control module when the control module is in the second operation mode, at least one of the first control signal and the second control signal is output as a second potential, or the third At least one of the control signal and the fourth control signal is output as a first potential.
  • At least one of the first switch, the second switch, the third switch, and the fourth switch is closed, and between the control module and the display module The connection is broken.
  • the first potential is a high potential
  • the second potential is a low potential
  • the first potential is a low potential
  • the second potential is a high potential
  • the first potential of the first control signal and the second signal is 3.3V, and the second potential is 0V.
  • the first potential of the third control signal and the fourth signal is 0V, and the second potential is 3.3V.
  • the first switch and the second switch are hole type field effect transistors, that is, P-type field effect transistors.
  • the third switch and the fourth switch are electronic field effect transistors, that is, N-type field effect transistors.
  • the first switch and the second switch are electronic field effect transistors
  • the third switch and the fourth switch are hole type field effect transistors.
  • control module is disposed on the system board.
  • the encryption module is disposed on the printed circuit board.
  • Another object of the present application is a display device comprising: a control module, providing a power signal and a plurality of control signals, and determining a matching signal provided by the system board to the printed circuit board, wherein, according to the control module The result of the determination of the matching signal is such that the control module has a first operating mode or a second operating mode; an encryption module coupled to the control module to receive and transmit the power signal, wherein the encryption module has The plurality of switches include: a first switch, the control end of the first switch is coupled to the first control signal, the first end is coupled to the control module, and the second switch is coupled to the control end of the second switch a second control signal, the first end is coupled to the second end of the first switch; the third switch is coupled to the third control signal, and the first end is coupled to the second switch a fourth switch, the control end of the fourth switch is coupled to the fourth control signal, and the first end is coupled to the second end a second end of the third switch; a display module having a display driving circuit, wherein the
  • the second switch, the third switch and the fourth switch are in an open or closed state, and control a path or an open state between the control module and the display module, and control the power signal to The communication state of the display module.
  • the control module is disposed on the system board, and the encryption module is disposed on the printed circuit board.
  • the control module When the control module is in the first operation mode, the first control signal and the second control signal are output as a first potential, and the third control signal and the fourth control signal are output as a second potential, The first switch, the second switch, the third switch, and the fourth switch are in an open state, a connection between the control module and the display module is a path, and the control module outputs the A power signal is sent to the display module.
  • At least one control signal output is a first potential, and at least one of the first switch, the second switch, the third switch, and the fourth switch is turned off, the control module and the display module The connection between them is an open circuit.
  • the application board can be disconnected between the system board and the printed circuit board when the system board and the printed circuit board are not properly matched, thereby protecting the printed circuit board of the display device.
  • FIG. 1 is a schematic diagram of an exemplary display device.
  • FIG. 2 is a block diagram of a display device according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a connection of an encryption module according to an embodiment of the present application.
  • 4a is a schematic diagram of a connection of an encryption module according to another embodiment of the present application.
  • FIG. 4b is a schematic diagram of a connection of an encryption module according to still another embodiment of the present application.
  • FIG. 4c is a schematic diagram of a connection of an encryption module according to still another embodiment of the present application.
  • the word “comprising” is to be understood to include the component, but does not exclude any other component.
  • “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
  • FIG. 1 is a schematic diagram of an exemplary display device.
  • an exemplary display device 10 includes a system board 120 having a control module 125 and a printed circuit board 110 (PCB) including: a timing controller (not shown) and a a connector 115, the connector 115 is coupled to the system board 120; a display panel 100 having a display area 118 and a wiring area 116; and a plurality of source driving chips 112 and a plurality of gates
  • the pole drive chip 114 is disposed opposite to the wiring area 116 of the display panel 100.
  • the control board 120 transmits signals such as R/G/B compression signals and control signals to the timing controller through the connector 115, and then processed by the timing controller and transmitted to the display through the source driving chip 112 and the gate driving chip 114.
  • signals such as R/G/B compression signals and control signals
  • the timing controller transmits signals such as R/G/B compression signals and control signals to the timing controller through the connector 115, and then processed by the timing controller and transmitted to the display through the source driving chip 112 and the gate driving chip 114.
  • On the panel 100 there may be compatibility or matching issues between different system boards 120 and different printed circuit boards 110. If the system board 120 is incompatible or mismatched with the printed circuit board 110, the wrong connection may cause the internal operation of the printed circuit board 110 to malfunction, affecting the display effect; or damage the printed circuit board 110, causing the display device 10 to be defective. .
  • FIG. 2 is a block diagram of a display device according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a connection of an encryption module according to an embodiment of the present application.
  • a display device 20 includes: a control module 125, and provides a power signal V1 and a plurality of control signals (A, B, C, D), and Determining, by the system board, a matching signal to the printed circuit board, wherein the control module 125 has a first operating mode or a second operating mode according to the determining result of the matching signal by the control module 125;
  • the module 130 is coupled to the control module 125, and receives and transmits the power signal V1.
  • the encryption module 130 has a plurality of switches (M1, M2, M3, M4), including: a first switch M1.
  • the control end of the first switch M1 is coupled to the first control signal A, the first end is coupled to the control module 125, and the second switch M2 is coupled to the second control signal B.
  • the first switch M1 and the second switch M2 are controlled according to an operation mode of the control module 125. Opening or closing states of the third switch M3 and the fourth switch M4 to control a path or an open state between the control module 125 and the display module 140, and controlling the power signal V1 to the display The connected state of the circuit of module 140.
  • the first control signal A, the second control signal B, the third control signal C, and the fourth control signal D include a first potential and a second potential.
  • the potential state is provided by the control module 125.
  • connection between the first end and the second end of the plurality of switches (M1, M2, M3, M4) is in series.
  • the control and driving system of the display device 20 can work normally, and the control module 125 enters the first A running mode.
  • the first control signal A and the second control signal B are output as a first potential (which may be, for example, 3.3V), the third control signal C and the fourth control signal.
  • the D output is the second potential (which can be, for example, 3.3V).
  • the first potential is a logic low potential and the second potential is a logic high potential.
  • the first switch M1 and the second switch M2 are P-type field effect transistors
  • the third switch M3 and the fourth switch M4 are N-type field effect transistors. Due to the different types of the plurality of switches (M1, M2, M3, M4), the corresponding first potential and the second potential have different logic high or logic low voltages.
  • the first potential of the first switch M1 and the second switch M2 may be, for example, 3.3V
  • the second potential thereof may be, for example, 0V
  • the first potential of the third switch M3 and the fourth switch M4 may be, for example, 0V
  • the second potential thereof may be, for example, 3.3V.
  • the first switch M1, the second switch M2, the third switch M3, and the fourth switch M4 are in an on state
  • the control module 125 and the display module are The connection between 140 is a path state
  • the control module 125 outputs the power signal (V1 - V2) to the display module 140 through a plurality of switches (M1, M2, M3, M4).
  • the control and driving system of the display device 20 cannot work normally, and the control module 125 is The second mode of operation.
  • this second operation mode at least one of the first control signal A and the second control signal B is output as a second potential (which may be, for example, 0V), or the third control signal C and At least one of the fourth control signals D is output as a first potential (which may be, for example, 0V).
  • any one of the plurality of control signals outputs other potentials. That is, at least one of the first switch M1, the second switch M2, the third switch M3, and the fourth switch M4 is turned off, so that the control module 125 and the display module 140 are The connection between them is an open state.
  • the power signal V1 cannot be transmitted to the display module 140 through the transfer of the plurality of switches (M1, M2, M3, M4), ensuring that the printed circuit board is not damaged by the line fault.
  • the control module 125 is disposed on the system board, and the encryption module 130 is disposed on the printing On the circuit board, in other words, the encryption module 130 can be disposed, for example, on a connector of a printed circuit board.
  • the display module includes a display driving circuit and a plurality of pixel switches, and the display driving circuit may include, for example, a source driving chip S-COF, a gate driving chip G-COF, or a GOA circuit module.
  • the encryption module 131 includes, compared with the encryption module 130, the first switch M1 and the second switch M2 of the N-type field effect transistor, and the third switch M3 of the P-type field effect transistor. And a fourth switch M4.
  • the control module 125 When the first control signal A and the second control signal B output are logic low, and the third control signal C and the fourth control signal D output are logic high, the control module 125
  • the connection between the display module 140 and the display module 140 is a path, and the control module 125 outputs a power signal (V1 - V2) to the display module 140.
  • the connection between the control module 125 and the display module 140 is an open circuit.
  • FIG. 4b is a schematic diagram of a connection of an encryption module according to another embodiment of the present application
  • FIG. 4c is a schematic diagram of a connection of an encryption module according to still another embodiment of the present application.
  • the encryption module 132 includes: a first switch M1 and a third switch M3 of the N-type field effect transistor, and a second switch M2 and a fourth switch M4 of the P-type field effect transistor.
  • the encryption module 133 includes: a first switch M1 and a third switch M3 of the P-type field effect transistor, and a second switch M2 and a fourth switch M4 of the N-type field effect transistor.
  • the plurality of switches (M1, M2, M3, M4 in the encryption module 132 or the encryption module 133 are correspondingly adjusted by the high potential and low potential switching of the plurality of control signals (A, B, C, D).
  • the open or closed state controls the path of the power supply signal V1 to the display module 140 and the open state, thereby realizing the protection of the printed circuit board of the display device 20, improving the product optimization rate, and reducing the production cost.
  • the plurality of switches are controlled to be turned on and off by a plurality of control signals (A, B, C, D), and as long as they are a plurality of switches, any one of them
  • a plurality of control signals A, B, C, D
  • the connection between the control module 125 and the display module 140 is an open circuit.
  • the connection between the control module 125 and the display module 140 is a path only when the plurality of switches are all open. This design can greatly increase the fault tolerance of the display device 20.
  • the plurality of switches are illustrated as including four switches, but are not limited thereto, and the plurality of switches may also include two switches, three switches, or five switches. switch.
  • the present application adds an encryption module (130, 131, 132, 133) to the display device 20, so that when the system board and the printed circuit board are not properly matched, the system board and the printed circuit board are disconnected. This protects the printed circuit board of the display device.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示装置（20），包括：控制模块（125），提供电源信号（V1）及多个控制信号（A,B,C,D），并对系统板（120）提供至印制电路板（110）的匹配信号进行判断，依据控制模块（125）对匹配信号的判断结果，使得控制模块（125）为第一运行模式或第二运行模式；加密模块（130），与控制模块（125）耦接，接收并传输电源信号（V1），加密模块（130）具有多个开关（M1,M2,M3,M4），包括第一开关（M1），第二开关（M2），第三开关（M3）和第四开关（M4）；显示模块（140），耦接第四开关（M4）；其中，根据控制模块（125）的运行模式，控制加密模块（130）的多个开关（M1,M2,M3,M4）的状态，以控制控制模块（125）与显示模块（140）之间的通路或断路状态，及控制电源信号（V1）至显示模块（140）的联通状态。

Description

显示装置 技术领域
本申请涉及显示领域，特别是涉及一种具有加密模块的显示装置。
背景技术
薄膜晶体管显示装置(TFT-LCD，Thin Film Transistor Liquid Crystal Display)是当前平板显示装置的主要品种之一，已经成为了现代IT、视讯产品中重要的显示平台。薄膜晶体管显示装置主要驱动原理是，系统板将R/G/B压缩信号、控制信号及动力通过线材与印制电路板(PCB)上的连接器(Connector)相连接，数据经过印制电路板上的时序控制芯片(TCON，Timing Controller)处理后，经印制电路板，通过源极驱动芯片(S-COF，Source-Chip on Film)和栅极驱动芯片(G-COF，Gate-Chip on Film)与显示区连接，从而使得显示装置获得所需的电源、信号。
显示装置中的连接器大部分可以共用，但是系统板的输出设定可能会根据面板供应商和后续加工厂商的不同需求而有所差异，所以系统板的组装过程中，可能会出现系统板与PCB不匹配的情况，而错误的匹配及连接会导致PCB内部出现误动作，或者损坏，导致显示装置不良。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种具有加密模块的显示装置。
本申请的目的及解决其技术问题是采用以下技术方案来实现的。依据本申请提出的一种显示装置，包括：控制模块，提供电源信号及多个控制信号，并对系统板提供至印制电路板的匹配信号进行判断，其中，依据所述控制模块对所述匹配信号的判断结果，使得所述控制模块具有第一运行模式或第二运行模式；加密模块，与所述控制模块耦接，接收并传输所述电源信号，其中，所述加密模块具有多个开关，包括：第一开关，所述第一开关的控制端耦接第一控制信号，第一端耦接所述控制模块；第二开关，所述第二开关的控制端耦接第二控制信号，第一端耦接所述第一开关的第二端；第三开关，所述第三开关的控制端耦接第三控制信号，第一端耦接所述第二开关的第二端；第四开关，所述第四开关的控制端耦接第四控制信号，第一端耦接所述第三开关的第二端；显示模块，所述显示模块耦接所述第四开关的第二端；其中，根据所述控制模块的运行模式，控制所述第一开关，所述第二开关，所述第三开关及所述第四开关的开启或关闭状态，以控制所述控制模块与所述显示模块之间的通路或断路状态，及控制所述电源信号至所述显示模块的联通状态。
在本申请的一实施例中，所述第一控制信号，所述第二控制信号，所述第三控制信号及所述第四控制信号包括第一电位和第二电位两种电位状态，并由所述控制模块所提供。
在本申请的一实施例中，当所述控制模块为第一运行模式时，所述第一控制信号和所述第二控制信号输出为第一电位，所述第三控制信号和所述第四控制信号输出为第二电位。
在本申请的一实施例中，所述第一开关、所述第二开关、所述第三开关及所述第四开关为开启状态，所述控制模块与所述显示模块之间的连接为通路，所述控制模块输出所述电源信号至所述显示模块。
在本申请的一实施例中，当所述控制模块为第二运行模式时，所述第一控制信号和所述第二控制信号中至少一个控制信号输出为第二电位，或所述第三控制信号和所述第四控制信号中至少一个控制信号输出为第一电位。
在本申请的一实施例中，所述第一开关，所述第二开关，所述第三开关及所述第四开关中至少一个开关为关闭，所述控制模块与所述显示模块之间的连接为断路。
在本申请的一实施例中，所述第一电位为高电位，所述第二电位为低电位，或所述第一电位为低电位，所述第二电位为高电位。
在本申请的一实施例中，所述第一控制信号和所述第二信号的第一电位为3.3V，第二电位为0V。
在本申请的一实施例中，所述第三控制信号和所述第四信号的第一电位为0V，第二电位为3.3V。
在本申请的一实施例中，所述第一开关和所述第二开关为空穴型场效应晶体管，即P型场效应晶体管。所述第三开关和所述第四开关为电子型场效应晶体管，即N型场效应晶体管。
在本申请的一实施例中，所述第一开关和所述第二开关为电子型场效应晶体管，所述第三开关和所述第四开关为空穴型场效应晶体管。
在本申请的一实施例中，所述控制模块设置于所述系统板上。
在本申请的一实施例中，所述加密模块设置于所述印制电路板上。
本申请的目的及解决其技术问题还可采用以下技术措施进一步实现。
本申请的另一目的为一种显示装置，包括：控制模块，提供电源信号及多个控制信号，并对系统板提供至印制电路板的匹配信号进行判断，其中，依据所述控制模块对所述匹配信号的判断结果，使得所述控制模块具有第一运行模式或第二运行模式；加密模块，与所述控制模块耦接，接收并传输所述电源信号，其中，所述加密模块具有多个开关，包括：第一开关，所述第一开关的控制端耦接第一控制信号，第一端耦接所述控制模块；第二开关，所述第二开关的控制端耦接第二控制信号，第一端耦接所述第一开关的第二端；第三开关，所述第三开关的控制端耦接第三控制信号，第一端耦接所述第二开关的第二端；第四开关，所述第四开关的控制端耦接第四控制信号，第一端耦接所 述第三开关的第二端；显示模块，具有显示驱动电路，其中，所述第四开关的第二端耦接所述显示模块的所述显示驱动电路；其中，所述第一控制信号，所述第二控制信号，所述第三控制信号及所述第四控制信号包括第一电位和第二电位两种电位状态，并由所述控制模块所提供。其中，根据所述控制模块的运行模式，调整所述第一控制信号，所述第二控制信号，所述第三控制信号及所述第四控制信号的电位状态，以控制所述第一开关，所述第二开关，所述第三开关及所述第四开关的开启或关闭状态，并控制所述控制模块与所述显示模块之间的通路或断路状态，及控制所述电源信号至所述显示模块的联通状态。所述控制模块设置于所述系统板上，所述加密模块设置于所述印制电路板上。当所述控制模块为第一运行模式时，所述第一控制信号和所述第二控制信号输出为第一电位，所述第三控制信号和所述第四控制信号输出为第二电位，所述第一开关、所述第二开关、所述第三开关及所述第四开关为开启状态，所述控制模块与所述显示模块之间的连接为通路，所述控制模块输出所述电源信号至所述显示模块。当所述控制模块为第二运行模式时，所述第一控制信号和所述第二控制信号中至少一个控制信号输出为第二电位，或所述第三控制信号和所述第四控制信号中至少一个控制信号输出为第一电位，所述第一开关，所述第二开关，所述第三开关及所述第四开关中至少一个开关为关闭，所述控制模块与所述显示模块之间的连接为断路。
本申请通过在显示装置中增加一个加密模块，可以在系统板与印制电路板匹配不正确时，使得系统板与印制电路板之间为断路状态，以此保护显示装置的印制电路板。
附图说明
图1为范例性的显示装置示意图。
图2为本申请一实施例的显示装置模块图。
图3为本申请一实施例的加密模块连接示意图。
图4a为本申请另一实施例的加密模块连接示意图。
图4b为本申请又一实施例的加密模块连接示意图。
图4c为本申请再一实施例的加密模块连接示意图。
具体实施方式
以下各实施例的说明是参考附加的图式，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。
附图和说明被认为在本质上是示出性的，而不是限制性的。在图中，结构相似的单元是以相同标号表示。另外，为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
在附图中，为了清晰起见，夸大了层、膜、面板、区域等的厚度。在附图中，为了理解和便于描述，夸大了一些层和区域的厚度。将理解的是，当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时，所述组件可以直接在所述另一组件上，或者也可以存在中间组件。
另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述组件，但是不排除任何其它组件。此外，在说明书中，“在......上”意指位于目标组件上方或者下方，而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定发明目的所采取的技术手段及功效，以下结合附图及具体的实施例，对依据本申请提出的一种显示装置，其具体实施方式、结构、特征及其功效，详细说明如后。
图1为范例性的显示装置示意图。请参考图1，一种范例性的显示装置10，包括：一系统板120，具有一控制模块125；一印制电路板110(PCB)，包括：一时序控制器(图未示)及一连接器115，所述连接器115耦接所述系统板120；一显示面板100，所述显示面板100具有一显示区118和一布线区116；以及多个源极驱动芯片112和多个栅极驱动芯片114，相对设置于显示面板100的布线区116。其中，控制板120将R/G/B压缩信号、控制信号等信号通过连接器115传输到时序控制器，再由时序控制器处理并通过源极驱动芯片112和栅极驱动芯片114传输到显示面板100上。但是，不同的系统板120与不同的印制电路板110之间可能存在兼容或匹配的问题。若系统板120与印制电路板110不兼容或者不匹配，错误的连接则可能会导致印制电路板110内部误动作，影响显示效果；或是损坏印制电路板110，造成显示装置10不良。
图2为本申请一实施例的显示装置模块图及图3为本申请一实施例的加密模块连接示意图。请同时参考图2和图3，在本申请的一实施例中，一种显示装置20，包括：控制模块125，提供电源信号V1及多个控制信号(A，B，C，D)，并对系统板提供至印制电路板的匹配信号进行判断，其中，依据所述控制模块125对所述匹配信号的判断结果，使得所述控制模块125具有第一运行模式或第二运行模式；加密模块130，与所述控制模块125耦接，接收并传输所述电源信号V1，其中，所述加密模块130具有多个开关(M1，M2，M3，M4)，包括：第一开关M1，所述第一开关M1的控制端耦接第一控制信号A，第一端耦接所述控制模块125；第二开关M2，所述第二开关M2的控制端耦接第二控制信号B，第一端耦接所述第一开关M1的第二端；第三开关M3，所述第三开关M3的控制端耦接第三控制信号C，第一端耦接所述第二开关M2的第二端；第四开关M4，所述第四开关M4的控制端耦接第四控制信号D，第一端耦接所述第三开关M3的第二端；显示模块140，所述显示模块140耦接所述第四开关M4的第二端，所述显示模块140提供显示画面至观赏者。其中，根据所述控制模块125的运行模式，控制所述第一开关M1，所述第二开关M2，所 述第三开关M3及所述第四开关M4的开启或关闭状态，以控制所述控制模块125与所述显示模块140之间的通路或断路状态，及控制所述电源信号V1至所述显示模块140的电路的联通状态。
在本申请的一实施例中，所述第一控制信号A，所述第二控制信号B，所述第三控制信号C及所述第四控制信号D包括第一电位和第二电位两种电位状态，并由所述控制模块125所提供。
在本申请的一实施例中，多个开关(M1，M2，M3，M4)的第一端和第二端之间的连接方式为串联。
在本申请的一实施例中，当显示装置20上的系统板与印制电路板兼容或者匹配成功时，所述显示装置20的控制及驱动系统可以正常工作，则所述控制模块125进入第一运行模式。在此第一运行模式中，所述第一控制信号A和所述第二控制信号B输出为第一电位(可例如为3.3V)，所述第三控制信号C和所述第四控制信号D输出为第二电位(可例如为3.3V)。
在本申请的一实施例中，所述第一电位为逻辑低电位，所述第二电位为逻辑高电位。
在本申请的一实施例中，所述第一开关M1和所述第二开关M2为P型场效应晶体管，所述第三开关M3和所述第四开关M4为N型场效应晶体管。因多个开关(M1，M2，M3，M4)的类型不同，其对应的第一电位和第二电位的逻辑高电位或逻辑低电位的电压亦有所不同。在本实施例中，所述第一开关M1和所述第二开关M2的第一电位可例如为3.3V，其第二电位可例如为0V。所述第三开关M3和所述第四开关M4的第一电位可例如为0V，其第二电位可例如为3.3V。
在本申请的一实施例中，所述第一开关M1、所述第二开关M2、所述第三开关M3及所述第四开关M4为开启状态，所述控制模块125与所述显示模块140之间的连接为通路状态，所述控制模块125通过多个开关(M1，M2，M3，M4)输出所述电源信号(V1—V2)至所述显示模块140。
在本申请的一实施例中，当显示装置20上的系统板与印制电路板不兼容或者匹配错误时，所述显示装置20的控制及驱动系统无法正常工作，则所述控制模块125为第二运行模式。在此第二运行模式中，所述第一控制信号A和所述第二控制信号B中至少一个控制信号输出为第二电位(可例如为0V)，或所述第三控制信号C和所述第四控制信号D中至少一个控制信号输出为第一电位(可例如为0V)。
在本申请的一实施例中，所述多个控制信号(A，B，C，D)中任一个输出为其他电位。亦即，所述第一开关M1，所述第二开关M2，所述第三开关M3及所述第四开关M4中至少一个开关为关闭，致使所述控制模块125与所述显示模块140之间的连接为断路状态。所述电源信号V1无法通过多个开关(M1，M2，M3，M4)的传递作用而传输到显示模块140，确保印制电路板不因线路故障而损坏。
在本申请的一实施例中，所述控制模块125设置于所述系统板上，所述加密模块130设置于印 制电路板上，进而言之，所述加密模块130可例如设置于印制电路板的连接器上。所述显示模块包括显示驱动电路，以及多个像素开关，所述显示驱动电路可例如包括源极驱动芯片S-COF，栅极驱动芯片G-COF，或者GOA电路模块。
图4a为本申请另一实施例的加密模块连接示意图。请参考图4a，加密模块131，与加密模块130相比，所述加密模块131包括：N型场效应晶体管的第一开关M1和第二开关M2，以及P型场效应晶体管的第三开关M3及第四开关M4。其中，当所述第一控制信号A和所述第二控制信号B输出为逻辑低电位，同时所述第三控制信号C和所述第四控制信号D输出为逻辑高电位时，控制模块125与显示模块140之间的连接为通路，控制模块125输出电源信号(V1—V2)至显示模块140。当多个控制信号(A，B，C，D)中任一个输出为其他逻辑电位时，控制模块125与显示模块140之间的连接为断路。
图4b为本申请又一实施例的加密模块连接示意图，图4c为本申请再一实施例的加密模块连接示意图。请参考图4b，加密模块132，所述加密模块132包括：N型场效应晶体管的第一开关M1和第三开关M3，以及P型场效应晶体管的第二开关M2及第四开关M4。请参考图4c，加密模块133，所述加密模块133包括：P型场效应晶体管的第一开关M1和第三开关M3，以及N型场效应晶体管的第二开关M2及第四开关M4。其中，通过多个控制信号(A，B，C，D)的高电位及低电位切换，对应调节所述加密模块132或者所述加密模块133中的多个开关(M1，M2，M3，M4)的开启或关闭状态，控制电源信号V1至显示模块140的通路及断路状态，以此实现对显示装置20的印制电路板的保护，提高产品优化率，以及降低生产成本。
在一些实施例中，通过多个控制信号(A，B，C，D)控制多个开关(M1，M2，M3，M4)的开启及关闭，且因其为多个开关，只要其中任意一个开关关闭则所述控制模块125与所述显示模块140之间的连接为断路。只有所述多个开关全部打开时，所述控制模块125与所述显示模块140之间的连接为通路。此设计可以大幅度提高显示装置20的容错率。在本申请的实施例中，所述多个开关例示为包括四个开关，但不以此为限制，所述多个开关亦可以是包括两个开关，三个开关或五个开关等数量的开关。
本申请通过在显示装置20中增加一个加密模块(130，131，132，133)，可以在系统板与印制电路板匹配不正确时，使得系统板与印制电路板之间为断路状态，以此保护显示装置的印制电路板。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例；但它也可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词，除非其前后文意显示出其它意思。
以上所述，仅是本申请的实施例，并非对本申请作任何形式上的限制，虽然本申请已以具体的 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、等同变化与修饰，均仍属于本申请技术方案的范围内。

Claims (20)

  1. 一种显示装置，包括：
    控制模块，提供电源信号及多个控制信号，并对系统板提供至印制电路板的匹配信号进行判断，其中，依据所述控制模块对所述匹配信号的判断结果，使得所述控制模块具有第一运行模式或第二运行模式；
    加密模块，与所述控制模块耦接，接收并传输所述电源信号，其中，所述加密模块具有多个开关，包括：
    第一开关，所述第一开关的控制端耦接第一控制信号，第一端耦接所述控制模块；
    第二开关，所述第二开关的控制端耦接第二控制信号，第一端耦接所述第一开关的第二端；
    第三开关，所述第三开关的控制端耦接第三控制信号，第一端耦接所述第二开关的第二端；
    第四开关，所述第四开关的控制端耦接第四控制信号，第一端耦接所述第三开关的第二端；
    显示模块，所述显示模块耦接所述第四开关的第二端；
    其中，根据所述控制模块的运行模式，控制所述第一开关，所述第二开关，所述第三开关及所述第四开关的开启或关闭状态。
  2. 如权利要求1所述的显示装置，其中，所述第一控制信号，所述第二控制信号，所述第三控制信号及所述第四控制信号包括第一电位和第二电位两种电位状态，并由所述控制模块所提供。
  3. 如权利要求2所述的显示装置，其中，当所述控制模块为第一运行模式时，所述第一控制信号和所述第二控制信号输出为第一电位，所述第三控制信号和所述第四控制信号输出为第二电位。
  4. 如权利要求3所述的显示装置，其中，所述第一开关、所述第二开关、所述第三开关及所述第四开关为开启状态，所述控制模块与所述显示模块之间的连接为通路。
  5. 如权利要求4所述的显示装置，其中，所述控制模块输出所述电源信号至所述显示模块。
  6. 如权利要求2所述的显示装置，其中，当所述控制模块为第二运行模式时，所述第一控制信号和所述第二控制信号中至少一个控制信号输出为第二电位。
  7. 如权利要求6所述的显示装置，其中，所述第一开关及所述第二开关中至少一个开关为关闭，所述控制模块与所述显示模块之间的连接为断路。
  8. 如权利要求2所述的显示装置，其中，当所述控制模块为第二运行模式时，所述第三控制信号和所述第四控制信号中至少一个控制信号输出为第一电位。
  9. 如权利要求8所述的显示装置，其中，所述第三开关及所述第四开关中至少一个开关为关闭，所述控制模块与所述显示模块之间的连接为断路。
  10. 如权利要求2所述的显示装置，其中，所述第一电位为高电位，所述第二电位为低电位。
  11. 如权利要求2所述的显示装置，其中，所述第一电位为低电位，所述第二电位为高电位。
  12. 如权利要求2所述的显示装置，其中，所述第一控制信号和所述第二信号的第一电位为3.3V，第二电位为0V。
  13. 如权利要求10所述的显示装置，其中，所述第三控制信号和所述第四信号的第一电位为0V，第二电位为3.3V。
  14. 如权利要求1所述的显示装置，其中，所述第一开关和所述第二开关为空穴型场效应晶体管。
  15. 如权利要求14所述的显示装置，其中，所述第三开关和所述第四开关为电子型场效应晶体管。
  16. 如权利要求1所述的显示装置，其中，所述第一开关和所述第二开关为电子型场效应晶体管。
  17. 如权利要求16所述的显示装置，其中，所述第三开关和所述第四开关为空穴型场效应晶体管。
  18. 如权利要求1所述的显示装置，其中，所述控制模块设置于所述系统板上。
  19. 如权利要求1所述的显示装置，其中，所述加密模块设置于所述印制电路板上。
  20. 一种显示装置，包括：
    控制模块，提供电源信号及多个控制信号，并对系统板提供至印制电路板的匹配信号进行判断，其中，依据所述控制模块对所述匹配信号的判断结果，使得所述控制模块具有第一运行模式或第二运行模式；
    加密模块，与所述控制模块耦接，接收并传输所述电源信号，其中，所述加密模块具有多个开关，包括：
    第一开关，所述第一开关的控制端耦接第一控制信号，第一端耦接所述控制模块；
    第二开关，所述第二开关的控制端耦接第二控制信号，第一端耦接所述第一开关的第二端；
    第三开关，所述第三开关的控制端耦接第三控制信号，第一端耦接所述第二开关的第二端；
    第四开关，所述第四开关的控制端耦接第四控制信号，第一端耦接所述第三开关的第二端；
    显示模块，具有显示驱动电路，其中，所述第四开关的第二端耦接所述显示模块的所述显示驱动电路；
    其中，所述第一控制信号，所述第二控制信号，所述第三控制信号及所述第四控制信号包括第一电位和第二电位两种电位状态，并由所述控制模块所提供；
    其中，根据所述控制模块的运行模式，调整所述第一控制信号，所述第二控制信号，所述第三控制信号及所述第四控制信号的电位状态，以控制所述第一开关，所述第二开关，所述第三开关及所述第四开关的开启或关闭状态，并控制所述控制模块与所述显示模块之间的通路或断路状态，及控制所述电源信号与所述显示模块的联通状态；
    其中，所述控制模块设置于所述系统板上，所述加密模块设置于所述印制电路板上；
    当所述控制模块为第一运行模式时，所述第一控制信号和所述第二控制信号输出为第一电位，所述第三控制信号和所述第四控制信号输出为第二电位，所述第一开关、所述第二开关、所述第三开关及所述第四开关为开启状态，所述控制模块与所述显示模块之间的连接为通路，所述控制模块输出所述电源信号至所述显示模块；
    当所述控制模块为第二运行模式时，所述第一控制信号和所述第二控制信号中至少一个控制信号输出为第二电位，或所述第三控制信号和所述第四控制信号中至少一个控制信号输出为第一电位，所述第一开关，所述第二开关，所述第三开关及所述第四开关中至少一个开关为关闭，所述控制模块与所述显示模块之间的连接为断路。
PCT/CN2017/117651 2017-10-26 2017-12-21 显示装置 Ceased WO2019080331A1 (zh)

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