WO2017201778A1 - 控制电路及显示装置 - Google Patents

控制电路及显示装置 Download PDF

Info

Publication number
WO2017201778A1
WO2017201778A1 PCT/CN2016/086635 CN2016086635W WO2017201778A1 WO 2017201778 A1 WO2017201778 A1 WO 2017201778A1 CN 2016086635 W CN2016086635 W CN 2016086635W WO 2017201778 A1 WO2017201778 A1 WO 2017201778A1
Authority
WO
WIPO (PCT)
Prior art keywords
connection terminal
voltage
switch
terminal
control circuit
Prior art date
Application number
PCT/CN2016/086635
Other languages
English (en)
French (fr)
Inventor
黄笑宇
Original Assignee
深圳市华星光电技术有限公司
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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US15/118,874 priority Critical patent/US10043467B2/en
Publication of WO2017201778A1 publication Critical patent/WO2017201778A1/zh

Links

Images

Classifications

    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13458—Terminal pads
    • 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
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a control circuit and a display device using the same.
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • the main driving principle of TFT-LCD is: the system motherboard connects the R/G/B compression signal, control signal and power through the wire to the timing control board, and the data passes through the Timing Controller (TCON) chip on the timing control board ( After IC) processing, it is transferred to each source-chip on film (S-COF) and gate-chip on film (G- via a printed circuit board (PCB)). COF), the source flip chip and the gate flip chip are connected to the display area of the liquid crystal display, so that the liquid crystal display obtains the required power and signal.
  • TCON Timing Controller
  • the electrical signal between the timing control board and the printed circuit board needs to be connected through a connector, such as a flexible flat cable (FFC).
  • a connector such as a flexible flat cable (FFC).
  • FFC flexible flat cable
  • the technical problem to be solved by the present invention is to provide a control circuit that allows the working circuit on the timing control board to avoid burning due to the plugging of the connector.
  • the present invention also provides a display device that refers to the control circuit.
  • a control circuit including a timing control board and a printed circuit board;
  • the timing control board includes a first connection terminal, a switch, and a working circuit, the first connection terminal is connected to a control end of the switch for controlling the switch to be turned on or off, and the input end of the switch has a first voltage, an output of the switch is connected to the working circuit;
  • the printed circuit board includes a second connection terminal, a third connection terminal, and a fourth connection terminal arranged in sequence, the voltage on the third connection terminal being different from the voltage on the second connection terminal and the fourth The voltage on the connection terminal;
  • the first connection terminal is electrically connected to any one of the second connection terminal, the third connection terminal or the fourth connection terminal;
  • the switch When the first connection terminal is connected to the third connection terminal, the switch is turned on, the output terminal has a first voltage for operating the working circuit; when the first connection terminal is connected to In the second connection terminal or the fourth connection terminal, the switch is turned off, and the output terminal has a zero voltage for stopping the working circuit.
  • the switch is a field effect transistor.
  • the switch is a P-channel metal oxide semiconductor field effect transistor
  • the third connection terminal has a second voltage
  • the second connection terminal and the fourth connection terminal have a third voltage
  • the second The voltage is less than the third voltage
  • the second voltage is a zero voltage or a negative voltage
  • the third voltage is greater than or equal to 3V.
  • the switch is an N-channel MOSFET
  • the third connection terminal has a second voltage
  • the second connection terminal and the fourth connection terminal have a third voltage
  • the second The voltage is greater than the third voltage
  • the second voltage is greater than or equal to 3V
  • the third voltage is a zero voltage or a negative voltage.
  • control circuit further comprises a flexible flat cable comprising opposite first and second ends, the first end is connected to the first connection terminal, and the second end is connected to the first Any one of the second connection terminal, the third connection terminal, or the fourth connection terminal, wherein the second end, the second connection terminal, the third connection terminal, and the fourth connection terminal are a rectangular gold finger, the width of the second end and the third connection terminal are both a first width, a distance between the second connection terminal and the third connection terminal, and the third connection terminal and the first The pitch of the four connection terminals is equal to the first width.
  • widths of the second connection terminal and the fourth connection terminal are both greater than or equal to the first width.
  • the ratio of the width of the second connection terminal and the fourth connection terminal to the first width is greater than or equal to 1.5.
  • a display device comprising the control circuit of any of the above.
  • the present invention has the following beneficial effects:
  • the control circuit of the embodiment enables the working circuit on the timing control board to work normally when the connector is correctly inserted, and stops when the connector is incorrectly inserted to avoid burning due to a short circuit or the like. .
  • FIG. 1 is a schematic structural diagram of a control circuit according to an embodiment of the present invention.
  • installation should be understood broadly, and may be, for example, Fixed connection Alternatively, it may be detachably connected, or integrally connected; it may be a mechanical connection; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • Fixed connection Alternatively, it may be detachably connected, or integrally connected; it may be a mechanical connection; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the control circuit includes a timing control board 1 and a printed circuit board 3.
  • the timing control board 1 includes a first connection terminal 11, a switch 12, and a working circuit (not shown).
  • the first connection terminal 11 is connected to the control end 121 of the switch 12 for controlling the switch 12 to be turned on or off.
  • the input end 122 of the switch 12 has a first voltage V1, and the switch 12
  • the output terminal 123 is connected to the working circuit.
  • the printed circuit board 3 includes a second connection terminal 31, a third connection terminal 32, and a fourth connection terminal 33 which are arranged in series.
  • the voltage on the third connection terminal 32 is different from the voltage on the second connection terminal 31 and the voltage on the fourth connection terminal 33.
  • the first connection terminal 11 is electrically connected to any one of the second connection terminal 31, the third connection terminal 32, or the fourth connection terminal 33.
  • control circuit further includes a flexible flat cable 2 including an opposite first end 21 and a second end 22, the first end 21 connecting the first connection terminal 11,
  • the second terminal 22 is connected to the second connection terminal 31, or the third connection terminal 32, or the fourth connection terminal 33, so that the first connection terminal 11 is electrically connected to the second connection Any one of the terminal 31, the third connection terminal 32, or the fourth connection terminal 33.
  • the switch 12 Turning on, the output terminal 123 has a first voltage V1 for operating the working circuit on the timing control board 1; when the first connection terminal 11 is connected to the second connection terminal 31 or the When the fourth terminal 33 is connected, the flexible flat cable 2 is erroneously connected to the printed circuit board 3 (the flexible flat cable 2 is inserted), the switch 12 is disconnected, and the output terminal 123 has a zero voltage.
  • the working circuit on board 1 stops working. That is, the control circuit can be used to control the operating state of the working circuit on the timing control board 1.
  • the second connection terminal 31, the third connection terminal 32, and the fourth connection terminal 33 are sequentially arranged on the printed circuit board 3 31 and the fourth connection terminal 33 are respectively located at two sides of the third connection terminal 32.
  • the output end 123 of the switch 12 has the first voltage V1, the working circuit on the timing control board 1 operates; if the flexible flat cable 2 is inserted incorrectly (for example, plug), the first The connection terminal 11 is electrically connected to the second connection terminal 31 or the fourth connection terminal 33 located at two sides of the third connection terminal 32, and the timing control board 1 is erroneously connected to the printed circuit board 3, The voltage on the second connection terminal 31 or the fourth connection terminal 33 is connected to the control terminal 121 of the switch 12 through the first connection terminal 11, the switch 12 is turned off, and the output of the switch 12 is Terminal 123 has a zero voltage, said step on said timing control board 1 Circuit to stop working in order to avoid a short circuit, burned.
  • the control circuit of the embodiment makes the working circuit on the timing control board 1 work normally when the flexible flat cable 2 is correctly inserted, when the flexible flat cable 2 is inserted incorrectly. Stop working and avoid burning due to problems such as short circuit.
  • control circuit of the present invention may also implement the timing control board 1 (the first connection terminal 11) and the printed circuit board 3 by using other connectors. An electrical connection relationship between the two connection terminals 31, the third connection terminal 32 or the fourth connection terminal 33. Similarly, the control circuit can also make the timing control board 1 The working circuit works normally when the connector is correctly inserted, and stops when the connector is incorrectly inserted to avoid burning due to a short circuit or the like.
  • connection terminal may have various structural forms such as a pad, a pin, a gold finger, a probe, and the like.
  • the switch 12 can be a field effect transistor, such as a thin film transistor (TFT) or a metal oxide semiconductor field effect transistor (metal oxide semiconductor, MOS), small size and fast response.
  • a field effect transistor such as a thin film transistor (TFT) or a metal oxide semiconductor field effect transistor (metal oxide semiconductor, MOS), small size and fast response.
  • TFT thin film transistor
  • MOS metal oxide semiconductor field effect transistor
  • the switch 12 is a P-channel metal oxide semiconductor field effect transistor (P-MOS), and the third connection terminal 32 has a second voltage V2, the second connection The terminal 31 and the fourth connection terminal 33 have a third voltage V3, and the second voltage V2 is smaller than the third voltage V3.
  • P-MOS P-channel metal oxide semiconductor field effect transistor
  • the third connection terminal 32 has a second voltage V2
  • the second connection The terminal 31 and the fourth connection terminal 33 have a third voltage V3, and the second voltage V2 is smaller than the third voltage V3.
  • the turn-on voltage of the P-channel MOSFET is V0
  • the difference V21 between the second voltage V2 and the first voltage V1 is smaller than the turn-on voltage V0
  • the switch 12 When V21 ⁇ V0 is turned on, the difference V31 between the third voltage V3 and the first voltage V1 is greater than the turn-on voltage V0, and the switch 12 is turned off when V31>V0.
  • the second voltage V2 is a zero voltage or a negative voltage
  • the third voltage V3 is greater than or equal to 3V.
  • the second voltage V2 is zero voltage (groundable), and the third voltage V3 is 3.3V.
  • the switch 12 is an N-channel metal oxide semiconductor field effect transistor (N-MOS), and the third connection terminal 32 has a second voltage V2, the second The connection terminal 31 and the fourth connection terminal 33 have a third voltage V3 that is greater than the third voltage V3.
  • N-MOS N-channel metal oxide semiconductor field effect transistor
  • the third connection terminal 32 has a second voltage V2
  • the second The connection terminal 31 and the fourth connection terminal 33 have a third voltage V3 that is greater than the third voltage V3.
  • the second voltage V2 is greater than or equal to 3V
  • the third voltage V3 is a zero voltage or a negative voltage.
  • the second voltage V2 is 3.3V
  • the third voltage V3 is zero voltage (groundable).
  • the second end 22 , the second connection terminal 31 , the third connection terminal 32 , and the fourth connection terminal 33 are all rectangular gold a width of the second end 22 and the third connection terminal 32 is a first width T1, a distance T2 between the second connection terminal 31 and the third connection terminal 32, and the third connection terminal The distance T3 between the 32 and the fourth connection terminal 33 is equal to the first width T1.
  • the distance T2 between the second connection terminal 31 and the third connection terminal 32 and the distance T3 between the third connection terminal 32 and the fourth connection terminal 33 are equal to the second The width T1 of the end 22, thus when the second end 22 is connected to the printed circuit board 3, even the flexible flat cable 2
  • the connection relationship between the second end 22 and the second connection terminal 31, or the third connection terminal 32, or the fourth connection terminal 33 is also single-connected, and the above-mentioned does not occur.
  • the distance between the second end 22 and the third connecting terminal 32 is too far, so that the second connecting terminal 31 and the fourth connecting terminal 33 are
  • the width T4 is greater than or equal to the first width T1 such that the second end 22 is always connected to the second connection terminal 31, the third connection terminal 32, or the fourth connection terminal 33.
  • the ratio of the width T4 of the second connection terminal 31 and the fourth connection terminal 33 to the first width T1 is greater than or equal to 1.5.
  • the embodiment of the present invention further provides a display device, comprising the control circuit according to any one of the above embodiments, wherein the working circuit on the timing control board is normal when the connector is correctly inserted. Work, stop working when the connector is inserted incorrectly, to avoid burning due to problems such as short circuit.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electronic Switches (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

一种控制电路及显示装置，所述控制电路包括时序控制板（1）和印刷电路板（3）；时序控制板包括第一连接端子（11）、开关（12）以及工作电路，第一连接端子（11）连接至开关（12）的控制端（121），开关（12）的输入端（22）具有第一电压（V1），开关（12）的输出端（123）连接至工作电路；印刷电路板（3）包括依次排列设置的第二连接端子（31）、第三连接端子（32）以及第四连接端子（33），第三连接端子（32）上的电压不同于第二连接端子（31）以及第四连接端子（33）上的电压；第一连接端子（11）电性连接至第二连接端子（31）、第三连接端子（32）或第四连接端子（33）中任一者；当第一连接端子（11）连接至第三连接端子（32）时，开关导通；当第一连接端子（11）连接至第二连接端子（31）或者第四连接端子（33）时，开关断开。所述控制电路使工作电路得以避免因连接件插歪而导致烧毁。

Description

控制电路及显示装置
本发明要求2016年5月26日递交的发明名称为“控制电路及显示装置”的申请号201610356996.9的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，尤其涉及一种控制电路以及一种应用所述控制电路的显示装置。
背景技术
TFT-LCD(Thin Film Transistor Liquid Crystal Display，薄膜晶体管液晶显示器)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主要驱动原理是：系统主板将R/G/B压缩信号、控制信号及动力通过线材与时序控制板相连接，数据经过时序控制板上的时序控制器(Timing Controller，TCON)芯片(IC)处理后，经由印刷电路板(Printed Circuit Board，PCB)传输至各源极覆晶薄膜(Source-Chip on Film，S-COF)和栅极覆晶薄膜(Gate-Chip on Film，G-COF)，源极覆晶薄膜和栅极覆晶薄膜与液晶显示器的显示区连接，从而使得液晶显示器获得所需的电源和信号。
其中，因为时序控制板与印刷电路板之间的电讯号需要通过连接件进行连接，例如柔性扁平电缆(Flexible Flat Cable，FFC)。在组装过程中，容易发生因为柔性扁平电缆插歪，导致时序控制板烧毁的不良。
发明内容
本发明所要解决的技术问题在于提供一种控制电路，所述控制电路使得时序控制板上的工作电路得以避免因连接件插歪而导致烧毁。
此外，本发明还提供一种引用所述控制电路的显示装置。
为了实现上述目的，本发明实施方式采用如下技术方案：
一方面，提供一种控制电路，包括时序控制板和印刷电路板；
所述时序控制板包括第一连接端子、开关以及工作电路，所述第一连接端子连接至所述开关的控制端，用以控制所述开关导通或断开，所述开关的输入端具有第一电压，所述开关的输出端连接至所述工作电路；
所述印刷电路板包括依次排列设置的第二连接端子、第三连接端子以及第四连接端子，所述第三连接端子上的电压不同于所述第二连接端子上的电压以及所述第四连接端子上的电压；
所述第一连接端子电性连接至所述第二连接端子、所述第三连接端子或所述第四连接端子中任一者；
当所述第一连接端子连接至所述第三连接端子时，所述开关导通，所述输出端具有第一电压，用以使所述工作电路工作；当所述第一连接端子连接至所述第二连接端子或者所述第四连接端子时，所述开关断开，所述输出端具有零电压，用以使所述工作电路停止工作。
其中，所述开关为场效应晶体管。
其中，所述开关为P沟道金属氧化物半导体场效应管，所述第三连接端子具有第二电压，所述第二连接端子和所述第四连接端子具有第三电压，所述第二电压小于所述第三电压。
其中，所述第二电压为零电压或负电压，所述第三电压大于等于3V。
其中，所述开关为N沟道金属氧化物半导体场效应管，所述第三连接端子具有第二电压，所述第二连接端子和所述第四连接端子具有第三电压，所述第二电压大于所述第三电压。
其中，所述第二电压大于等于3V，所述第三电压为零电压或负电压。
其中，所述控制电路还包括柔性扁平电缆，所述柔性扁平电缆包括相对的第一端和第二端，所述第一端连接所述第一连接端子，所述第二端连接所述第二连接端子、所述第三连接端子或所述第四连接端子中任一者，所述第二端、所述第二连接端子、所述第三连接端子以及所述第四连接端子均为长方形金手指，所述第二端和所述第三连接端子的宽度均为第一宽度，所述第二连接端子与所述第三连接端子的间距以及所述第三连接端子与所述第四连接端子的间距均等于所述第一宽度。
其中，所述第二连接端子与所述第四连接端子的宽度均大于等于所述第一 宽度。
其中，所述第二连接端子和所述第四连接端子的宽度与所述第一宽度的比均大于等于1.5。
另一方面，还提供一种显示装置，包括如上任一项所述的控制电路。
相较于现有技术，本发明具有以下有益效果：
本实施例所述控制电路，使得所述时序控制板上的工作电路在所述连接件插装正确时正常工作、在所述连接件插装错误时停止工作，避免因短路等问题而导致烧毁。
附图说明
为了更清楚地说明本发明的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以如这些附图获得其他的附图。
图1是本发明实施例提供的一种控制电路的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
此外，以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明中所提到的方向用语，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，使用的方向用语是为了更好、更清楚地说明及理解本发明，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“设置在……上”应做广义理解，例如，可以是固定连 接，也可以是可拆卸地连接，或者一体地连接；可以是机械连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。若本说明书中出现“工序”的用语，其不仅是指独立的工序，在与其它工序无法明确区别时，只要能实现该工序所预期的作用则也包括在本用语中。另外，本说明书中用“～”表示的数值范围是指将“～”前后记载的数值分别作为最小值及最大值包括在内的范围。在附图中，结构相似或相同的单元用相同的标号表示。
请参阅图1，本发明实施例提供一种控制电路。所述控制电路包括时序控制板1和印刷电路板3。所述时序控制板1包括第一连接端子11、开关12以及工作电路(图中未画出)。所述第一连接端子11连接至所述开关12的控制端121，用以控制所述开关12导通或断开，所述开关12的输入端122具有第一电压V1，所述开关12的输出端123连接至所述工作电路。所述印刷电路板3包括依次排列设置的第二连接端子31、第三连接端子32以及第四连接端子33。所述第三连接端子32上的电压不同于所述第二连接端子31上的电压以及所述第四连接端子33上的电压。所述第一连接端子11电性连接至所述第二连接端子31、所述第三连接端子32或所述第四连接端子33中任一者。
举例而言，所述控制电路还包括柔性扁平电缆2，所述柔性扁平电缆2包括相对的第一端21和第二端22，所述第一端21连接所述第一连接端子11，所述第二端22连接所述第二连接端子31、或所述第三连接端子32、或所述第四连接端子33，从而使得所述第一连接端子11电性连接至所述第二连接端子31、所述第三连接端子32或所述第四连接端子33中任一者。当所述第一连接端子11连接至所述第三连接端子32时，所述柔性扁平电缆2与所述印刷电路板3正确连接(所述柔性扁平电缆2没有插歪)，所述开关12导通，所述输出端123具有第一电压V1，用以使所述时序控制板1上所述工作电路工作；当所述第一连接端子11连接至所述第二连接端子31或者所述第四连接端子33时，所述柔性扁平电缆2与所述印刷电路板3错误连接(所述柔性扁平电缆2插歪)，所述开关12断开，所述输出端123具有零电压，用以使所述时序控制 板1上所述工作电路停止工作。也即，所述控制电路可以用于控制所述时序控制版1上的所述工作电路的工作状态。
在本实施例中，由于所述印刷电路板3上依次排列设置有所述第二连接端子31、所述第三连接端子32以及所述第四连接端子33，也即所述第二连接端子31与所述第四连接端子33分别位于所述第三连接端子32的两侧。当所述柔性扁平电缆2插装至所述印刷电路板3时，如果所述柔性扁平电缆2插装正确，则所述第一连接端子11电性连接所述第三连接端子32，所述时序控制板1与所述印刷电路板3正确连接，所述第三连接端子32上的电压通过所述第一连接端子11连接至所述开关12的控制端121，所述开关12导通，所述开关12的输出端123具有所述第一电压V1，所述时序控制板1上所述工作电路工作；如果所述柔性扁平电缆2插装错误(例如插歪)，则所述第一连接端子11电性连接至位于所述第三连接端子32两侧的所述第二连接端子31或者所述第四连接端子33，所述时序控制板1与所述印刷电路板3错误连接，所述第二连接端子31或所述第四连接端子33上的电压通过所述第一连接端子11连接至所述开关12的控制端121，所述开关12断开，所述开关12的输出端123具有零电压，所述时序控制板1上所述工作电路停止工作，从而避免发生短路、烧毁。简而言之，本实施例所述控制电路，使得所述时序控制板1上所述工作电路在所述柔性扁平电缆2插装正确时正常工作、在所述柔性扁平电缆2插装错误时停止工作，避免因短路等问题而导致烧毁。
应当理解的，在其他实施方式中，本发明所述控制电路也可以采用其他连接件来实现所述时序控制板1(所述第一连接端子11)与所述印刷电路板3(所述第二连接端子31、所述第三连接端子32或所述第四连接端子33中任一者)之间的电性连接关系，同样的，所述控制电路也可以使得所述时序控制板1上所述工作电路在所述连接件插装正确时正常工作、在所述连接件插装错误时停止工作，避免因短路等问题而导致烧毁。
本实施例所述“连接端子”，可以有多种结构形式，例如焊盘、引脚、金手指、探针等等。
进一步地，所述开关12可以为场效应晶体管，例如薄膜晶体管(Thin-film transistor，TFT)或者金属氧化物半导体场效应管(metal oxide semiconductor， MOS)，体积小巧、反应速度快。
进一步地，作为一种可选实施例，所述开关12为P沟道金属氧化物半导体场效应管(P-MOS)，所述第三连接端子32具有第二电压V2，所述第二连接端子31和所述第四连接端子33具有第三电压V3，所述第二电压V2小于所述第三电压V3。当所述P沟道金属氧化物半导体场效应管的导通电压为V0时，所述第二电压V2与所述第一电压V1的差值V21小于所述导通电压V0，所述开关12在V21＜V0时导通，所述第三电压V3与所述第一电压V1的差值V31大于所述导通电压V0，所述开关12在V31＞V0时断开。
优选的，所述第二电压V2为零电压或负电压，所述第三电压V3大于等于3V。举例而言，所述第二电压V2为零电压(可接地)，所述第三电压V3为3.3V。
进一步地，作为另一种可选实施例，所述开关12为N沟道金属氧化物半导体场效应管(N-MOS)，所述第三连接端子32具有第二电压V2，所述第二连接端子31和所述第四连接端子33具有第三电压V3，所述第二电压V2大于所述第三电压V3。当所述N沟道金属氧化物半导体场效应管的导通电压为V0时，所述第二电压V2与所述第一电压V1的差值V21大于所述导通电压V0，所述开关12在V21＞V0时导通，所述第三电压V3与所述第一电压V1的差值V31小于所述导通电压V0，所述开关12在V31＜V0时断开。
优选的，所述第二电压V2大于等于3V，所述第三电压V3为零电压或负电压。举例而言，所述第二电压V2为3.3V，所述第三电压V3为零电压(可接地)。
进一步地，请参阅图1，作为一种可选实施例，所述第二端22、所述第二连接端子31、所述第三连接端子32以及所述第四连接端子33均为长方形金手指，所述第二端22和所述第三连接端子32的宽度均为第一宽度T1，所述第二连接端子31与所述第三连接端子32的间距T2以及所述第三连接端子32与所述第四连接端子33的间距T3均等于所述第一宽度T1。在本实施例中，由于所述第二连接端子31与所述第三连接端子32的间距T2以及所述第三连接端子32与所述第四连接端子33的间距T3均等于所述第二端22的宽度T1，因此当所述第二端22连接至所述印刷电路板3时，即使所述柔性扁平电缆2 插歪，所述第二端22与所述第二连接端子31、或所述第三连接端子32、或所述第四连接端子33之间的连接关系也是单一连接的，不会发生所述第二连接端子31、所述第三连接端子32以及所述第四连接端子33之间的短路，也不会发生所述第二端22落空在所述第二连接端子31与所述第三连接端子32之间或者所述第三连接端子32与所述第四连接端子33之间的情况，进一步降低所述时序控制板1上所述工作电路烧毁的风险。
进一步地，为了防止所述柔性扁平电缆2插歪时，所述第二端22偏离所述第三连接端子32的距离太远，令所述第二连接端子31与所述第四连接端子33的宽度T4大于等于所述第一宽度T1，从而使所述第二端22始终与所述第二连接端子31、或所述第三连接端子32、或所述第四连接端子33连接。
举例而言，所述第二连接端子31和所述第四连接端子33的宽度T4与所述第一宽度T1的比大于等于1.5。
本发明实施例还提供一种显示装置，所述显示装置包括如上实施例中任一项所述的控制电路，其所述时序控制板上所述工作电路在所述连接件插装正确时正常工作、在所述连接件插装错误时停止工作，避免因短路等问题而导致烧毁。
以上对本发明实施例进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (18)

  1. 一种控制电路，其中，包括时序控制板和印刷电路板；
    所述时序控制板包括第一连接端子、开关以及工作电路，所述第一连接端子连接至所述开关的控制端，用以控制所述开关导通或断开，所述开关的输入端具有第一电压，所述开关的输出端连接至所述工作电路；
    所述印刷电路板包括依次排列设置的第二连接端子、第三连接端子以及第四连接端子，所述第三连接端子上的电压不同于所述第二连接端子上的电压以及所述第四连接端子上的电压；
    所述第一连接端子电性连接至所述第二连接端子、所述第三连接端子或所述第四连接端子中任一者；
    当所述第一连接端子连接至所述第三连接端子时，所述开关导通，所述输出端具有第一电压，用以使所述工作电路工作；当所述第一连接端子连接至所述第二连接端子或者所述第四连接端子时，所述开关断开，所述输出端具有零电压，用以使所述工作电路停止工作。
  2. 如权利要求1所述的控制电路，其中，所述开关为场效应晶体管。
  3. 如权利要求2所述的控制电路，其中，所述开关为P沟道金属氧化物半导体场效应管，所述第三连接端子具有第二电压，所述第二连接端子和所述第四连接端子具有第三电压，所述第二电压小于所述第三电压。
  4. 如权利要求3所述的控制电路，其中，所述第二电压为零电压或负电压，所述第三电压大于等于3V。
  5. 如权利要求2所述的控制电路，其中，所述开关为N沟道金属氧化物半导体场效应管，所述第三连接端子具有第二电压，所述第二连接端子和所述第四连接端子具有第三电压，所述第二电压大于所述第三电压。
  6. 如权利要求5所述的控制电路，其中，所述第二电压大于等于3V，所述第三电压为零电压或负电压。
  7. 如权利要求1所述的控制电路，其中，所述控制电路还包括柔性扁平电缆，所述柔性扁平电缆包括相对的第一端和第二端，所述第一端连接所述第一连接端子，所述第二端连接所述第二连接端子、所述第三连接端子或所述第四 连接端子中任一者，所述第二端、所述第二连接端子、所述第三连接端子以及所述第四连接端子均为长方形金手指，所述第二端和所述第三连接端子的宽度均为第一宽度，所述第二连接端子与所述第三连接端子的间距以及所述第三连接端子与所述第四连接端子的间距均等于所述第一宽度。
  8. 如权利要求7所述的控制电路，其中，所述第二连接端子与所述第四连接端子的宽度均大于等于所述第一宽度。
  9. 如权利要求7所述的控制电路，其中，所述第二连接端子和所述第四连接端子的宽度与所述第一宽度的比均大于等于1.5。
  10. 一种显示装置，其中，包括控制电路，所述控制电路包括时序控制板和印刷电路板；
    所述时序控制板包括第一连接端子、开关以及工作电路，所述第一连接端子连接至所述开关的控制端，用以控制所述开关导通或断开，所述开关的输入端具有第一电压，所述开关的输出端连接至所述工作电路；
    所述印刷电路板包括依次排列设置的第二连接端子、第三连接端子以及第四连接端子，所述第三连接端子上的电压不同于所述第二连接端子上的电压以及所述第四连接端子上的电压；
    所述第一连接端子电性连接至所述第二连接端子、所述第三连接端子或所述第四连接端子中任一者；
    当所述第一连接端子连接至所述第三连接端子时，所述开关导通，所述输出端具有第一电压，用以使所述工作电路工作；当所述第一连接端子连接至所述第二连接端子或者所述第四连接端子时，所述开关断开，所述输出端具有零电压，用以使所述工作电路停止工作。
  11. 如权利要求10所述的显示装置，其中，所述开关为场效应晶体管。
  12. 如权利要求11所述的显示装置，其中，所述开关为P沟道金属氧化物半导体场效应管，所述第三连接端子具有第二电压，所述第二连接端子和所述第四连接端子具有第三电压，所述第二电压小于所述第三电压。
  13. 如权利要求12所述的显示装置，其中，所述第二电压为零电压或负电压，所述第三电压大于等于3V。
  14. 如权利要求11所述的显示装置，其中，所述开关为N沟道金属氧 化物半导体场效应管，所述第三连接端子具有第二电压，所述第二连接端子和所述第四连接端子具有第三电压，所述第二电压大于所述第三电压。
  15. 如权利要求14所述的显示装置，其中，所述第二电压大于等于3V，所述第三电压为零电压或负电压。
  16. 如权利要求10所述的显示装置，其中，所述控制电路还包括柔性扁平电缆，所述柔性扁平电缆包括相对的第一端和第二端，所述第一端连接所述第一连接端子，所述第二端连接所述第二连接端子、所述第三连接端子或所述第四连接端子中任一者，所述第二端、所述第二连接端子、所述第三连接端子以及所述第四连接端子均为长方形金手指，所述第二端和所述第三连接端子的宽度均为第一宽度，所述第二连接端子与所述第三连接端子的间距以及所述第三连接端子与所述第四连接端子的间距均等于所述第一宽度。
  17. 如权利要求16所述的显示装置，其中，所述第二连接端子与所述第四连接端子的宽度均大于等于所述第一宽度。
  18. 如权利要求16所述的显示装置，其中，所述第二连接端子和所述第四连接端子的宽度与所述第一宽度的比均大于等于1.5。
PCT/CN2016/086635 2016-05-26 2016-06-21 控制电路及显示装置 WO2017201778A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/118,874 US10043467B2 (en) 2016-05-26 2016-06-21 Control circuit and display device including the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610356996.9A CN106023915B (zh) 2016-05-26 2016-05-26 控制电路及显示装置
CN201610356996.9 2016-05-26

Publications (1)

Publication Number Publication Date
WO2017201778A1 true WO2017201778A1 (zh) 2017-11-30

Family

ID=57093902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/086635 WO2017201778A1 (zh) 2016-05-26 2016-06-21 控制电路及显示装置

Country Status (3)

Country Link
US (1) US10043467B2 (zh)
CN (1) CN106023915B (zh)
WO (1) WO2017201778A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020093195A1 (zh) * 2018-11-05 2020-05-14 深圳市柔宇科技有限公司 面板及其制作方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993954A (en) * 1988-07-13 1991-02-19 Thomson-Csf Device for interconnection between and integrated circuit and an electrical circuit
CN104007355A (zh) * 2012-09-20 2014-08-27 洛克威尔自动控制亚太业务中心有限公司 用于柔性印刷电路连接完整性的检测电路
CN104459432A (zh) * 2013-09-20 2015-03-25 英飞凌科技股份有限公司 用于检测接触结构的不正确机械接触的接触布置和方法
CN105096810A (zh) * 2015-09-23 2015-11-25 京东方科技集团股份有限公司 一种驱动部件及显示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100706742B1 (ko) * 2000-07-18 2007-04-11 삼성전자주식회사 평판 디스플레이 장치
KR101309371B1 (ko) * 2006-06-30 2013-09-17 엘지디스플레이 주식회사 액정표시장치 및 그의 구동방법
CN100495492C (zh) * 2006-08-10 2009-06-03 友达光电股份有限公司 显示面板模块
CN101290439B (zh) * 2007-04-19 2013-09-04 瀚宇彩晶股份有限公司 液晶显示器装置及信号传递单元与方法
JP2009294379A (ja) * 2008-06-04 2009-12-17 Toshiba Mobile Display Co Ltd 液晶表示装置
CN201877109U (zh) * 2010-09-08 2011-06-22 海尔集团公司 显示装置及源极驱动板
TW201227700A (en) * 2010-12-30 2012-07-01 Au Optronics Corp Liquid crystal display module
KR102078857B1 (ko) * 2013-08-02 2020-02-20 삼성디스플레이 주식회사 컨트롤 보드 및 이를 포함하는 표시 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993954A (en) * 1988-07-13 1991-02-19 Thomson-Csf Device for interconnection between and integrated circuit and an electrical circuit
CN104007355A (zh) * 2012-09-20 2014-08-27 洛克威尔自动控制亚太业务中心有限公司 用于柔性印刷电路连接完整性的检测电路
CN104459432A (zh) * 2013-09-20 2015-03-25 英飞凌科技股份有限公司 用于检测接触结构的不正确机械接触的接触布置和方法
CN105096810A (zh) * 2015-09-23 2015-11-25 京东方科技集团股份有限公司 一种驱动部件及显示装置

Also Published As

Publication number Publication date
CN106023915B (zh) 2018-08-07
CN106023915A (zh) 2016-10-12
US20180114496A1 (en) 2018-04-26
US10043467B2 (en) 2018-08-07

Similar Documents

Publication Publication Date Title
US20180061304A1 (en) Driving circuit and liquid crystal display apparatus
US11966128B2 (en) Display panel static electricity protection device, static electricity protection method, and display device
US10884075B2 (en) Printed circuit board, method for determining engagement state between printed circuit board and flexible printed circuit and display device
WO2020103205A1 (zh) 驱动电路和显示面板
WO2020182072A1 (zh) 显示面板的静电防护装置、方法及显示装置
US11145439B2 (en) Display device, and insertion and plugging protection device
US20120131243A1 (en) Multiplexing pin control circuit for computer system
WO2020103193A1 (zh) 驱动电路和显示面板
WO2019080332A1 (zh) 显示装置及其驱动电路与驱动方法
US20180106834A1 (en) Test fixture and test system applicable to electronic device having universal serial bus type-c receptacle, and method for performing testing on electronic device with aid of test fixture
US20180069338A1 (en) Connector, socket, method for providing signals to connector by socket, electronic equipment
WO2020113825A1 (zh) 显示驱动电路的斜插保护系统及斜插保护方法
US11355917B2 (en) Protective circuit and display drive device
WO2017201778A1 (zh) 控制电路及显示装置
WO2019071653A1 (zh) 一种烧录系统及方法
US10748470B2 (en) Level shifter and projector
CN107610664B (zh) 一种电路板以及显示器
CN112130098A (zh) 一种连接检测装置、主板及终端
TWI417864B (zh) 源極驅動器之輸出放大器
JP3262070B2 (ja) 出力バッファ
US11238822B2 (en) Drive circuit and drive system
CN109979405B (zh) 时序控制电路以及显示装置
WO2020124703A1 (zh) 一种驱动电路、驱动装置及显示装置
WO2019080331A1 (zh) 显示装置
CN101483032B (zh) 控制芯片

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 15118874

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16902767

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16902767

Country of ref document: EP

Kind code of ref document: A1