WO2019037151A1 - 缓冲电路及其显示装置 - Google Patents

缓冲电路及其显示装置 Download PDF

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Publication number
WO2019037151A1
WO2019037151A1 PCT/CN2017/100328 CN2017100328W WO2019037151A1 WO 2019037151 A1 WO2019037151 A1 WO 2019037151A1 CN 2017100328 W CN2017100328 W CN 2017100328W WO 2019037151 A1 WO2019037151 A1 WO 2019037151A1
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WO
WIPO (PCT)
Prior art keywords
charge plate
resistor unit
unit
circuit
electrically coupled
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/CN2017/100328
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English (en)
French (fr)
Inventor
王明良
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
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to US15/735,249 priority Critical patent/US10574133B2/en
Publication of WO2019037151A1 publication Critical patent/WO2019037151A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/34—Snubber circuits
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • 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
    • G09G2330/025—Reduction of instantaneous peaks of current
    • 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
    • G09G2330/06—Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/34—Snubber circuits
    • H02M1/346—Passive non-dissipative snubbers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/34—Snubber circuits
    • H02M1/348—Passive dissipative snubbers
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Definitions

  • the present application relates to the field of display technologies, and in particular, to a buffer circuit and a display device thereof.
  • the switching power supply circuit Since the switching power supply circuit always performs the "on” and “off” actions, the signal waveform will oscillate regardless of the on or off, and then the signal waveform will be slowly stabilized.
  • the characteristic of the switching power supply circuit itself is that when the switch is frequently switched between "on” and “off”, such an oscillating signal is continuously generated, and finally, it is radiated through the air, so the electromagnetic signal is generated by the oscillating signal.
  • Electromagnetic Interference (EMI) can be relatively severe.
  • the snubber circuit includes a resistor component and a capacitor component.
  • the damper function of the resistor component and the capacitor component can eliminate the oscillating signal very quickly, maintain the waveform of the signal stably, and reduce the electromagnetic radiation.
  • the arrangement of the resistor component and the capacitor component increases the cost of processing the component material and the circuit, and is greatly affected in the low-cost application field.
  • an object of the present invention is to provide a snubber circuit and a display device thereof, which are formed by wiring to reduce the manufacturing cost while maintaining the circuit effect.
  • a buffer circuit according to the present application is provided on a circuit board of a display device, comprising: a resistor unit, the two ends of the resistor unit are inwardly wide and narrow in shape, and the first end of the resistor unit is electrically a capacitive coupling unit having a first charge plate and a second charge plate disposed oppositely, the first charge plate electrically coupled to the second end of the resistor unit, the second charge plate electrically
  • the grounding circuit is coupled to the grounding line; wherein the resistor unit and the capacitor unit are formed on the circuit board in a conductive line configuration.
  • the driving device further includes: the outer wide inner narrow shape includes an hourglass shape or two triangular shapes connected.
  • the first end of the resistor unit is configured in a fold line, a straight line, a curve, or a diagonal line; and the second end of the resistor unit is configured in a fold line, a straight line, a curve, or a diagonal line.
  • the first end is an equal line width or a different line width configuration
  • the second end is an equal line width or a different line width configuration
  • the first charge plate and the second charge plate are respectively disposed on different circuit board layers of the circuit board.
  • the first charge plate and the second charge plate are respectively disposed at opposite positions of two different surfaces of the circuit board.
  • the shape of the first charge plate and the second charge plate includes a circle, a square, or a polygon.
  • the second object of the present application is a buffer circuit disposed on a circuit board of a display device, including: a resistor unit, the two ends of the resistor unit are inwardly wide and narrow in shape, and the first of the resistor units
  • the terminal is electrically coupled to the input signal;
  • the capacitor unit has a first charge plate and a second charge plate disposed oppositely, and the first charge plate is electrically coupled to the second end of the resistor unit, the second charge
  • the circuit board is electrically coupled to the grounding line; wherein the circuit board is a multi-layer circuit board, the buffer circuit includes a resistor unit and a capacitor unit, and both ends of the resistor unit are inwardly wide and narrow in shape, the resistor The first end and the second end of the unit are continuous curved lines, and the first end of the resistor unit is electrically coupled to the input signal, the capacitor unit has a first charge plate and a second charge plate, and the first charge plate The first charge plate is electrically coupled to the second end of the resistor unit,
  • a further object of the present application is a display device, comprising: a display panel; a control module, providing a control signal to control the display panel; a power supply module, providing a power supply for the control module and the display panel; and a switch unit And controlling a path and an open circuit between the power supply module and the control module and the display panel; and a buffer circuit connecting a circuit between the switch unit and the control module and the display panel;
  • the snubber circuit includes a resistor unit and a capacitor unit, the two ends of the resistor unit are inwardly wide and narrow in shape, and the first end of the resistor unit is electrically coupled to the input signal; a charge plate and a second charge plate, the first charge plate is electrically coupled to the second end of the resistor unit, and the second charge plate is electrically coupled to the ground line; wherein the resistor unit is The capacitor unit is formed on the circuit board in a conductive line configuration.
  • the present application can form the snubber circuit by wiring without significantly changing the premise of the existing production process, maintaining the original process requirements and product cost, and reducing the manufacturing cost while maintaining the circuit effect. Since there is no need to adjust the production process, there is no special process requirement and difficulty, so it will not increase the cost and is highly competitive in the market. Moreover, without increasing the array trace area, it is suitable for a variety of display panel designs today, and of course also for the narrow frame design of the panel, in line with market and technology trends.
  • FIG. 1a is a schematic diagram of the architecture of an exemplary display device.
  • FIG. 1b is a schematic diagram of waveforms of power signals for turning on and off of an exemplary display device.
  • FIG. 1c is a schematic diagram of an exemplary display device combined with a buffer circuit.
  • FIG. 1d is a schematic diagram of the oscillating waveform of the exemplary display device being turned on and off.
  • FIG. 2 is a schematic diagram showing the configuration of a circuit applied to a snubber circuit according to the method of the present application.
  • FIG 3 is a side elevational view of a line of an embodiment applied to a snubber circuit in accordance with the method of the present application.
  • FIG. 4 is a block diagram showing the application of an embodiment to a display device in accordance with the method 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.
  • the display panel of the present application may include a first substrate and a second substrate, and the first substrate and the second substrate may be, for example, a Thin Film Transistor (TFT) substrate or a Color Filter (CF) substrate.
  • TFT Thin Film Transistor
  • CF Color Filter
  • the active array switch and the color filter layer of the present application may also be formed on the same substrate.
  • the display panel of the present application may be, for example, a liquid crystal display panel, but is not limited thereto, and may also be an OLED display panel, a W-OLED display panel, a QLED display panel, a plasma display panel, and a curved surface. Display panel or other type of display panel.
  • FIG. 1a is a schematic diagram of the architecture of an exemplary display device.
  • a display device 100 includes a power supply module 110 , a control module 130 , a display panel 140 , and a switch unit 120 .
  • the power supply module 110 provides power for the control module 130 to operate with the display panel 140.
  • the control module 130 provides control signals to control the operation of the display panel 140.
  • Place The switch unit 120 can be disposed on the power supply module 110 to control the startup or shutdown of the power supply module 110, or independently disposed between the power supply module 110 and the control module 130 and the display panel 140. On the power supply line.
  • the switch unit 120 is configured to control a path and an open circuit between the power supply module 110 and the control module 130 and the display panel 140.
  • FIG. 1b is a schematic diagram of the waveforms of the power signals of the exemplary display device being turned on and off. Please refer to FIG. 1a for understanding.
  • the switch unit 120 when the switch unit 120 is "on” and “off", the waveforms of the switch signals are stabilized after being oscillated first. Since the switching unit 120 itself is frequently switched between “on” and “off”, such an oscillating signal is continuously generated, and finally radiated through the air, so the electromagnetic radiation caused by the oscillating signal (Electromagnetic Interference, EMI) will be relatively serious.
  • EMI Electromagnetic Interference
  • FIG. 1c is a schematic diagram of an exemplary display device combined with a buffer circuit
  • FIG. 1d is a schematic diagram of a waveform for eliminating the opening and closing of an exemplary display device.
  • a snubber circuit 150 connecting the switch unit 120 is disposed in the display device 100.
  • the snubber circuit 300 includes a resistor component R and a capacitor component C. The damping function of the resistor component R and the capacitor component C can be quickly Eliminating this oscillating signal, maintaining the waveform of the signal is stable, and reducing the electromagnetic radiation.
  • the buffer circuit 300 since the buffer circuit 300 only serves to eliminate the waveform oscillation of the power switch module at the "on” and “off” moments, in general, the resistance value of the resistor component R is small, and the capacitance value of the capacitor component C is also small. . According to the general practice, if the snubber circuit 300 is to be added, the cost of the parts material and circuit processing of the resistor component R and the capacitor component C is increased, and the competitiveness of the product is relatively weakened for low-cost applications.
  • FIG. 2 is a schematic diagram showing the arrangement of a circuit applied to a buffer circuit according to the method of the present application
  • FIG. 3 is a schematic side view showing the circuit applied to the buffer circuit according to the method of the present application. 1a to 1c are used to facilitate understanding.
  • the buffer circuit 300 is disposed on the circuit board 210 of the display device 100 .
  • the snubber circuit 300 includes: a resistor unit R, the two ends of the resistor unit R are inwardly wide and narrow, and the first end 311 of the resistor unit R is electrically coupled to the input signal;
  • the first charge plate 321 and the second charge plate 322 (shown in FIG.
  • the first charge plate 321 is electrically coupled to the second end 312 of the resistor unit R, the second charge The board is electrically coupled to the ground line; wherein the resistor unit R and the capacitor unit C are formed on the circuit board 210 in a conductive line configuration.
  • the resistor assembly R includes a first end 311, an intermediate portion 313 and a second end 312.
  • the first end 311 and the second end 312 of the resistor unit R are continuously curved curves to lengthen the bending of the trace.
  • the intermediate portion 313 of R is a connecting line that makes a narrow shape in the outer width. Because the resistance value is related to the length of the trace, the longer the length, the larger the resistance value, and the impedance of the connection line with a narrow outer shape and the outer width is relatively large, and the two elements are used to form the required resistance value.
  • the outer wide inner narrow shape ie the shape of the intermediate portion 313, includes an hourglass shape or two triangular shapes that are connected.
  • the first end 311 of the resistor unit R is configured in a fold line, a straight line, a curve, or a diagonal line.
  • the second end 312 of the resistor unit R is configured in a fold line, a straight line, a curve, or a diagonal line.
  • the first end 311 of the resistance unit R is of an equal line width or a different line width configuration.
  • the second end 312 of the resistive unit R is of an equal line width or a different line width configuration.
  • the first charge plate 321 and the second charge plate 322 of the capacitor component C are respectively disposed on different circuit board layers of the circuit board 210. .
  • the first charge plate 321 is disposed on the first laminate 211
  • the second charge plate 322 is disposed on the second laminate 212.
  • the area of the area covered by the first charge plate 321 and the second charge plate 322 substantially overlaps.
  • the parallel plate capacitance formula C ⁇ *S/D, where ⁇ is the dielectric constant of the board, which is related to the material of the circuit board of the display panel, which is a fixed value, S is the overlapping area of the parallel plates, and D is the parallel plate spacing. Therefore, by adjusting the overlapping area of the first charge plate 321 and the second charge plate 322, the capacitance value of the capacitance component C can be obtained.
  • the first charge plate 321 and the second charge plate 322 are respectively disposed at opposite positions of two different surfaces of the same circuit board layer in the display panel 200.
  • the shape of the first charge plate 321 and the second charge plate 322 are circular, square or polygonal.
  • the input signal includes a switching signal of the display panel 200.
  • FIG. 4 is a schematic diagram showing the structure of an embodiment applied to a display device according to the method of the present application.
  • a display device 100 includes: a display panel 140; a control module 130 that provides control signals to control the display panel 140; a power supply module 110 that provides the control module 130 and the display panel a power supply that operates 140; a switch unit 120 that controls a path and an open circuit between the power supply module 110 and the control module 130 and the display panel 140; a buffer circuit 300 that connects the switch unit 120 and the control module 130 And the circuit between the display panel 140, the buffer circuit 300 is disposed on a circuit board 210 of the display device 100; wherein the circuit board 210 is a multi-layer circuit board, and the buffer circuit 300 includes a resistor unit R and the capacitor unit C, the two ends of the resistor unit R are inwardly wide and narrow in shape, and the first end 311 and the second end 312 of the resistor unit R are continuous
  • the capacitor unit C has a first charge plate 321 and a second charge plate 322.
  • the first charge plate 321 and the second charge plate 322 are disposed on the circuit board 210. Different circuit
  • the first charge plate 321 is electrically coupled to the second end 312 of the resistor unit R, and the second charge plate 322 is electrically coupled to the ground line GND; the resistor unit R and the
  • the capacitor unit C is formed on the circuit board 210 in a conductive line arrangement.
  • This application can not significantly change the premise of the existing production process, maintain the original process requirements and product costs, formed by wiring
  • the snubber circuit reduces manufacturing costs while maintaining circuit effects. Since there is no need to adjust the production process, there is no special process requirement and difficulty, so it will not increase the cost and is highly competitive in the market. Moreover, without increasing the array trace area, it is suitable for a variety of display panel designs today, and of course also for the narrow frame design of the panel, in line with market and technology trends.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种缓冲电路（300）以及显示装置（100）。缓冲电路（300）设置于显示面板（140）的电路板（210）上，包括：电阻单元（R），电阻单元（R）的两端向内为外宽内窄形状，第一端（311）电性耦接输入信号；电容单元（C），具有对向设置的第一电荷板（321）与第二电荷板（322），第一电荷板（321）电性耦接电阻单元（R）的第二端（312），第二电荷板（322）电性耦接接地线路（GND）；其中，电阻单元（R）与电容单元（C）是以导电线路配置方式而形成在电路板（210）上。

Description

缓冲电路及其显示装置 技术领域
本申请涉及一种显示技术领域，特别涉及一种缓冲电路及其显示装置。
背景技术
现如今伴随着对高电源效率的需求，开关电源电路已经普及开来。而为提供有效电源控制与使用，故有不同的特定功能的电源电路产生，如升压电路、降压电路…等由电源管理芯片与外围电路组成的特定功能电路。
由于开关电源电路一直频繁地施行“开”和“关”的动作，不论开或关，信号波形皆会产生震荡，然后信号波形才会慢慢稳定。而开关电源电路本身的特性，其是受控频繁地在“开”和“关”中间切换时，会不断地产生这样的震荡信号，最终便会经由空气辐射出去，因此震荡信号带来的电磁辐射(Electromagnetic Interference，EMI)会相对严重。
目前常态性的改善方式为，在电源电路中设置降低电磁辐射的缓冲电路(Snubber Circuit)。缓冲电路包括电阻组件与电容组件，通过电阻组件和电容组件的阻尼作用，可以非常快速地消除掉这种震荡信号，维持信号的波形稳定，较能降低电磁辐射。但是，电阻组件与电容组件设置会增加零件物料与电路加工的费用成本，在低成本应用领域就会受到较大的影响。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种缓冲电路及其显示装置，通过布线方式形成所述缓冲电路，在维持电路效果的前提下降低制造成本。
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缓冲电路，设置于显示装置的一电路板上，包括：电阻单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端电性耦接输入信号；电容单元，具有对向设置的第一电荷板与第二电荷板，所述第一电荷板电性耦接所述电阻单元的第二端，所述第二电荷板电性耦接接地线路；其中，所述电阻单元与所述电容单元是以导电线路配置方式而形成在所述电路板上。
本申请解决其技术问题还可采用以下技术措施进一步实现。
在本申请的一实施例中，所述驱动装置还包括：所述外宽内窄形状包括沙漏形状或相连接的两个三角形状。
在本申请的一实施例中，所述电阻单元的第一端为折线、直线、曲线或斜线方式配置；所述电阻单元的第二端为折线、直线、曲线或斜线方式配置。
在本申请的一实施例中，所述第一端为等线宽或相异线宽配置，所述第二端为等线宽或相异线宽配置。
在本申请的一实施例中，所述第一电荷板与所述第二电荷板分别配置于所述电路板的相异电路板层。
在本申请的一实施例中，所述第一电荷板与所述第二电荷板分别配置于所述电路板的两相异表面的相对位置。
在本申请的一实施例中，所述第一电荷板与所述第二电荷板的形状包括圆形、方形或多角形。
本申请的次一目的为一种缓冲电路，设置于显示装置的一电路板上，包括：电阻单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端电性耦接输入信号；电容单元，具有对向设置的第一电荷板与第二电荷板，所述第一电荷板电性耦接所述电阻单元的第二端，所述第二电荷板电性耦接接地线路；其中，所述电路板为多层电路板，所述缓冲电路包括电阻单元与电容单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端与第二端为连续弯曲线路，所述电阻单元的第一端电性耦接输入信号，所述电容单元具有第一电荷板与第二电荷板，所述第一电荷板与所述第二电荷板设置于所述电路板的相异电路板层且位置相对应，所述第一电荷板电性耦接所述电阻单元的第二端，所述第二电荷板电性耦接接地线路；所述电阻单元与所述电容单元是以导电线路配置方式而形成在所述电路板上。
本申请的又一目的为一种显示装置，其包括：显示面板；控制模块，提供控制信号以控制所述显示面板；供电模块，提供所述控制模块与所述显示面板运作的电源；开关单元，控制所述供电模块与所述控制模块及所述显示面板之间的通路与断路；缓冲电路，连接所述开关单元与所述控制模块及所述显示面板之间的线路；其中，所述缓冲电路包括电阻单元与电容单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端电性耦接输入信号；所述电容单元具有对向设置的第一电荷板与第二电荷板，所述第一电荷板电性耦接所述电阻单元的第二端，所述第二电荷板电性耦接接地线路；其中，所述电阻单元与所述电容单元是以导电线路配置方式而形成在所述电路板上。
本申请可以不大幅改变现有生产流程的前提，维持原制程需求和产品成本，通过布线方式形成所述缓冲电路，在维持电路效果的前提下降低制造成本。因不需调整生产流程，故没有特别的制程要求与难度，故不会提升成本，极具备市场竞争性。而且，不用增加阵列走线面积，适用于现今多种的显示面板设计，当然也适用于面板窄边框设计，符合市场及技术趋势。
附图说明
图1a为范例性的显示装置的架构示意图。
图1b为范例性的显示装置的开启与关闭的电源信号波形示意图。
图1c为范例性的显示装置结合缓冲电路的架构示意图。
图1d为范例性的显示装置的开启与关闭的消除震荡波形示意图。
图2为显示依据本申请的方法，一实施例应用于缓冲电路的线路配置示意图。
图3为显示依据本申请的方法，一实施例应用于缓冲电路的线路侧视示意图。
图4为显示依据本申请的方法，一实施例应用于显示装置的架构示意图。
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申请目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本申请提出的一种缓冲电路及其显示装置，其具体实施方式、结构、特征及其功效，详细说明如后。
本申请的显示面板可包括第一基板及第二基板，第一基板及第二基板可例如为主动阵列开关(Thin Film Transistor，TFT)基板、彩色滤光层(Color Filter，CF)基板。然不限于此，在一些实施例中，本申请的主动阵列开关及彩色滤光层亦可形成于同一基板上。
在一些实施例中，本申请的所述显示面板可例如为液晶显示面板，然不限于此，其亦可为OLED显示面板，W-OLED显示面板，QLED显示面板，等离子体显示面板，曲面型显示面板或其他类型显示面板。
图1a为范例性的显示装置的架构示意图。请参照图1a，一种显示装置100，包括：供电模块110，控制模块130，显示面板140与开关单元120。所述供电模块110提供所述控制模块130与所述显示面板140运作的电源。所述控制模块130提供控制信号来控制所述显示面板140的运作。所 述开关单元120可设置于所述供电模块110来控制所述供电模块110的启动或关闭，或是独立设置于所述供电模块110与所述控制模块130板及所述显示面板140之间的供电线路上。所述开关单元120用以控制所述供电模块110与所述控制模块130及所述显示面板140之间的通路与断路。
图1b为范例性的显示装置的开启与关闭的电源信号波形示意图，请配合参照图1a以利于了解。如图1b所示，开关单元120在“开”和“关”时，开关信号的波形都是先震荡后才慢慢稳定。由于开关单元120本身特性是频繁地在“开”和“关”中间切换，因此会不断地产生这样的震荡信号，最终便会经由空气辐射出去，故震荡信号带来的电磁辐射(Electromagnetic Interference，EMI)会相对严重。
图1c为范例性的显示装置结合缓冲电路的架构示意图及图1d为范例性的显示装置的开启与关闭的消除震荡波形示意图，请配合图1a以利于理解。在所述显示装置100中设置连接开关单元120的缓冲电路(Snubber Circuit)150，所述缓冲电路300包括电阻组件R与电容组件C，通过电阻组件R和电容组件C的阻尼作用，可以快速地消除掉这种震荡信号，维持信号的波形稳定，较能降低电磁辐射。但是，由于缓冲电路300只是起到消除电源开关模块在“开”和“关”的瞬间波形震荡的作用，一般而言，电阻组件R的电阻值很小，电容组件C的电容值也很小。按照一般做法，如果要增加这个缓冲电路300，就会增加电阻组件R与电容组件C的零件物料与电路加工的费用成本，对低成本应用来说，相对减弱了产品的竞争力。
图2为显示依据本申请的方法，一实施例应用于缓冲电路的线路配置示意图，图3为显示依据本申请的方法，一实施例应用于缓冲电路的线路侧视示意图，现有技术部分请配合图1a至图1c以利于理解。请参阅图2，在本申请一实施例中，所述一种缓冲电路300，设置于显示装置100的电路板210上。所述缓冲电路300包括：电阻单元R，所述电阻单元R的两端向内为外宽内窄形状，所述电阻单元R的第一端311电性耦接输入信号；电容单元C，具有对向设置的第一电荷板321与第二电荷板322(如图3所示)，所述第一电荷板321电性耦接所述电阻单元R的第二端312，所述第二电荷板电性耦接接地线路；其中，所述电阻单元R与所述电容单元C是以导电线路配置方式而形成在所述电路板210上。
如图2所绘示，由于缓冲电路的电阻组件R和电容组件C的取值都很小，所以通过走线配置或是电路板布线技术可直接作出电阻组件R和电容组件C。电阻组件R包括第一端311、中间部313与第二端312，所述电阻单元R的第一端311与第二端312为连续弯曲的曲线，以将走线弯曲加长，所述电阻组件R的中间部313则是作出外宽内窄形状的连接走线。因为电阻值与走线长度有关，长度越长，电阻值越大，同时外宽内窄形状的连接走线的阻抗会比较大，利用此二要素而构成需求的电阻值。
在一些实施例中，所述外宽内窄形状，即所述中间部313的形状，包括沙漏形状或相连接的两个三角形状。
在一些实施例中，所述电阻单元R的第一端311为折线、直线、曲线或斜线方式配置。
在一些实施例中，所述电阻单元R的第二端312为折线、直线、曲线或斜线方式配置。
在一些实施例中，所述电阻单元R的所述第一端311为等线宽或相异线宽配置。
在一些实施例中，所述电阻单元R的所述第二端312为等线宽或相异线宽配置。
如图3所绘示，在本申请一实施例中，所述电容组件C的所述第一电荷板321与所述第二电荷板322分别配置于所述电路板210的相异电路板层。在一些实施例中，所述第一电荷板321设置于第一层板211，所述所述第二电荷板322设置于第二层板212。所述第一电荷板321与所述第二电荷板322所涵盖面积区域基本上是重叠。根据平行板电容公式C＝ε*S/D，其中ε是板子的介电常数，跟显示面板的电路板材质有关，是一个定值，S是平行板的重叠面积，D是平行板间距。所以，通过调整所述第一电荷板321与所述第二电荷板322的重叠面积，即可得到调整电容组件C的电容值。
在一些实施例中，所述第一电荷板321与所述第二电荷板322分别配置于所述显示面板200的中同一电路板层的两相异表面的相对位置。
在一些实施例中，所述第一电荷板321与所述第二电荷板322的形状为圆形、方形或多角形。
在一些实施例中，所述输入信号包括所述显示面板200的开关信号。
图4为显示依据本申请的方法，一实施例应用于显示装置的架构示意图，请同时参考图1a至图3以利于了解。在本申请一实施例中，一种显示装置100，包括：显示面板140；控制模块130，提供控制信号以控制所述显示面板140；供电模块110，提供所述控制模块130与所述显示面板140运作的电源；开关单元120，控制所述供电模块110与所述控制模块130及所述显示面板140之间的通路与断路；缓冲电路300，连接所述开关单元120与所述控制模块130及所述显示面板140之间的线路，所述缓冲电路300设置于所述显示装置100的一电路板210；其中，所述电路板210为多层电路板，所述缓冲电路300包括电阻单元R与电容单元C，所述电阻单元R的两端向内为外宽内窄形状，所述电阻单元R的第一端311与第二端312为连续弯曲线路，所述电阻单元R的第一端311电性耦接输入信号，所述电容单元C具有第一电荷板321与第二电荷板322，所述第一电荷板321与所述第二电荷板322设置于所述电路板210的相异电路板层且位置相对应，所述第一电荷板321电性耦接所述电阻单元R的第二端312，所述第二电荷板322电性耦接接地线路GND；所述电阻单元R与所述电容单元C是以导电线路配置方式而形成在所述电路板210上。
本申请可以不大幅改变现有生产流程的前提，维持原制程需求和产品成本，通过布线方式形成 所述缓冲电路，在维持电路效果的前提下降低制造成本。因不需调整生产流程，故没有特别的制程要求与难度，故不会提升成本，极具备市场竞争性。而且，不用增加阵列走线面积，适用于现今多种的显示面板设计，当然也适用于面板窄边框设计，符合市场及技术趋势。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。此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，仅是本申请具体的实施例而已，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. 一种缓冲电路，设置于显示装置的一电路板上，包括：
    电阻单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端电性耦接输入信号；
    电容单元，具有对向设置的第一电荷板与第二电荷板，所述第一电荷板电性耦接所述电阻单元的第二端，所述第二电荷板电性耦接接地线路；
    其中，所述电阻单元与所述电容单元是以导电线路配置方式而形成在所述电路板上。
  2. 如权利要求1所述的缓冲电路，其中，所述外宽内窄形状包括沙漏形状。
  3. 如权利要求1所述的缓冲电路，其中，所述外宽内窄形状包括相连接的两个三角形状。
  4. 如权利要求1所述的缓冲电路，其中，所述电阻单元的第一端为折线方式配置。
  5. 如权利要求1所述的缓冲电路，其中，所述电阻单元的第一端为直线方式配置。
  6. 如权利要求1所述的缓冲电路，其中，所述电阻单元的第一端为曲线或斜线方式配置。
  7. 如权利要求1所述的缓冲电路，其中，所述电阻单元的第二端为折线方式配置。
  8. 如权利要求1所述的缓冲电路，其中，所述电阻单元的第二端为直线方式配置。
  9. 如权利要求1所述的缓冲电路，其中，所述电阻单元的第二端为曲线或斜线方式配置。
  10. 如权利要求1所述的缓冲电路，其中，所述第一端为等线宽配置。
  11. 如权利要求1所述的缓冲电路，其中，所述第一端为相异线宽配置。
  12. 如权利要求1所述的缓冲电路，其中，所述第二端为等线宽配置。
  13. 如权利要求1所述的缓冲电路，其中，所述第二端为相异线宽配置。
  14. 如权利要求1所述的缓冲电路，其中，所述第一电荷板与所述第二电荷板分别配置于所述电路板的相异电路板层。
  15. 如权利要求1所述的缓冲电路，其中，所述第一电荷板与所述第二电荷板分别配置于所述电路板的两相异表面的相对位置。
  16. 如权利要求1所述的缓冲电路，其中，所述第一电荷板与所述第二电荷板的形状为圆形。
  17. 如权利要求1所述的缓冲电路，其中，所述第一电荷板与所述第二电荷板的形状为方形。
  18. 如权利要求1所述的缓冲电路，其中，所述第一电荷板与所述第二电荷板的形状为多角形。
  19. 一种缓冲电路，设置于显示装置的一电路板上，包括：
    电阻单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端电性耦接输入信号；
    电容单元，具有对向设置的第一电荷板与第二电荷板，所述第一电荷板电性耦接所述电阻单元 的第二端，所述第二电荷板电性耦接接地线路；
    其中，所述电路板为多层电路板，所述缓冲电路包括电阻单元与电容单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端与第二端为连续弯曲线路，所述电阻单元的第一端电性耦接输入信号，所述电容单元具有第一电荷板与第二电荷板，所述第一电荷板与所述第二电荷板设置于所述电路板的相异电路板层且位置相对应，所述第一电荷板电性耦接所述电阻单元的第二端，所述第二电荷板电性耦接接地线路；
    所述电阻单元与所述电容单元是以导电线路配置方式而形成在所述电路板上。
  20. 一种显示装置，包括：
    显示面板；
    控制模块，提供控制信号以控制所述显示面板；
    供电模块，提供所述控制模块与所述显示面板运作的电源；
    开关单元，控制所述供电模块与所述控制模块及所述显示面板之间的通路与断路；
    缓冲电路，连接所述开关单元与所述控制模块及所述显示面板之间的线路；
    其中，所述缓冲电路包括电阻单元与电容单元，所述电阻单元的两端向内为外宽内窄形状，所述电阻单元的第一端电性耦接输入信号；所述电容单元具有对向设置的第一电荷板与第二电荷板，所述第一电荷板电性耦接所述电阻单元的第二端，所述第二电荷板电性耦接接地线路；其中，所述电阻单元与所述电容单元是以导电线路配置方式而形成在所述电路板上。
PCT/CN2017/100328 2017-08-25 2017-09-04 缓冲电路及其显示装置 Ceased WO2019037151A1 (zh)

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