WO2019232987A1 - 电压输出系统及液晶显示装置 - Google Patents

电压输出系统及液晶显示装置 Download PDF

Info

Publication number
WO2019232987A1
WO2019232987A1 PCT/CN2018/107777 CN2018107777W WO2019232987A1 WO 2019232987 A1 WO2019232987 A1 WO 2019232987A1 CN 2018107777 W CN2018107777 W CN 2018107777W WO 2019232987 A1 WO2019232987 A1 WO 2019232987A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
voltage
circuit board
liquid crystal
board body
Prior art date
Application number
PCT/CN2018/107777
Other languages
English (en)
French (fr)
Inventor
陈帅
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 US16/312,286 priority Critical patent/US10984750B1/en
Publication of WO2019232987A1 publication Critical patent/WO2019232987A1/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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0289—Details of voltage level shifters arranged for use in a driving circuit
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections

Definitions

  • the present invention relates to the field of display technology, and in particular, to a voltage output system and a liquid crystal display device.
  • liquid crystal displays Liquid Crystal Display, LCD
  • LCD liquid crystal Display
  • other flat display devices have been widely used in mobile phones, TVs, personal computers due to their advantages such as high picture quality, power saving, thin body and wide application range.
  • Various consumer electronics products such as digital assistants, digital cameras, notebook computers, and desktop computers, have become mainstream in display devices.
  • liquid crystal display devices which include a liquid crystal display panel and a backlight module.
  • the working principle of a liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates. There are many small vertical and horizontal wires in the middle of the two glass substrates. The liquid crystal molecules are controlled to change direction by turning on or off, and the light of the backlight module Refracted to produce a picture.
  • Existing liquid crystal display devices generally include a liquid crystal panel, a flip-chip film (COF) bound to the liquid crystal panel, an X-board bound to the flip-chip film, and a flexible flat cable (FFC) electrically connected to the X-board.
  • a level conversion chip is provided on the C board, which is used to convert the input single voltage level signal into different voltage level signals and output to the liquid crystal panel, that is, convert the input voltage into the output voltage for output.
  • the magnitude of the output voltage output by the existing level-shifting chip cannot generally be adjusted freely within a large range. Therefore, in the prior art, a voltage output system electrically connected to the level-shifting unit and the liquid crystal panel is generally designed to control the output. The magnitude of the output voltage to the LCD panel.
  • FIG. 1 is a structural diagram of a conventional voltage output system.
  • the voltage output system includes a circuit board body 100, a first solder contact point 210 and a second solder contact point 220 provided on the circuit board body 100.
  • the zero-ohm resistance 300 soldered on the first solder contact point 210 and the second solder contact point 220 and the first metal trace 410 and the second metal trace 420 disposed in the circuit board body 100.
  • One end of the first metal trace 410 is electrically connected to the level conversion unit 500 provided on the C board of the liquid crystal display device, and the other end is electrically connected to the first solder contact point 210.
  • One end of the second metal trace 420 is electrically connected to the second solder contact point 220, and the other end is electrically connected to the liquid crystal panel 600 of the liquid crystal display device.
  • the voltage is input to the voltage output system by the level conversion unit 500, and then output to the liquid crystal panel after passing through the zero-ohm resistor 300.
  • an external voltage is required, as shown in FIG.
  • the power source 700 is soldered on the second solder contact point 220, and the power source 700 directly provides the liquid crystal panel 600 with an output voltage having a specific voltage value.
  • the above-mentioned voltage output system When applied to a liquid crystal display device in which the X plate and the C plate are separately provided, the above-mentioned voltage output system is provided on the C plate.
  • a C board with the above-mentioned voltage output system is usually put into the experimental environment for lighting experiments. After a certain period of time, it is replaced with a voltage-output system with zero-ohm resistance removed.
  • Use the power supply to provide an output voltage with a specific voltage value to carry out external voltage measurement experiments. This can avoid repeated disassembly of the zero-ohm resistor.
  • an assembly circuit board that combines an X board and a C board is often designed.
  • the assembly circuit board is directly bonded to the liquid crystal panel through a flip-chip film.
  • the voltage output system is designed in the assembly.
  • On the circuit board at this time, during the reliability experiment, it is necessary to repeatedly disassemble the zero-ohm resistor of the voltage output system to achieve output voltages of different voltage values to the liquid crystal panel, which not only complicates the experimental operation, but also in the process of repeated disassembly In the voltage output system, the solder contact points are easily oxidized and cannot be soldered again.
  • An object of the present invention is to provide a voltage output system, which is applied to a liquid crystal display device and can provide liquid crystal panels with output voltages of different voltage values, which effectively simplifies the experimental operation of the liquid crystal display device and has low cost.
  • Another object of the present invention is to provide a liquid crystal display device, which can provide output voltages of different voltage values to a liquid crystal panel, effectively simplify the experimental operation of the liquid crystal display device, and have low cost.
  • the present invention first provides a voltage output system, which includes a first circuit board body, a second circuit board body, first contacts, second contacts, and third contacts provided on the first circuit board body. Point and fourth contact, fifth and sixth contacts provided on the second circuit board body, first and second wires provided in the body of the first circuit board, and provided in the second circuit The third and fourth traces in the board body and the variable resistor;
  • the third contact is electrically connected to the fifth contact
  • the fourth contact is electrically connected to the sixth contact
  • the first trace electrically connects the first contact to the third contact
  • the second trace electrically connects the second contact to the fourth contact
  • one end of the third trace is connected to the input voltage, and the other end is electrically connected to the fifth contact
  • One end is electrically connected to the sixth contact, and the other end outputs an output voltage
  • the two ends of the variable resistor are electrically connected to the first contact and the second contact, respectively.
  • the first circuit board body is opposite to the second circuit board body
  • the first contact, the second contact, and the variable resistor are all located on a side of the first circuit board body away from the second circuit board body; the third contact and the fourth contact are all located on the first circuit board body.
  • the fifth contact and the sixth contact are located on a side of the second circuit board body near the first circuit board body.
  • variable resistor The two ends of the variable resistor are respectively welded to the first contact and the second contact; the third contact is welded to the fifth contact; and the fourth contact is welded to the sixth contact.
  • the first contact, the second contact, the fifth contact, and the sixth contact are all made of tin.
  • the third contact and the fourth contact are made of metal.
  • One end of the third trace is electrically connected to the level conversion unit; the input voltage is provided by the level conversion unit;
  • the other end of the fourth trace is electrically connected to the liquid crystal panel, and outputs an output voltage to the liquid crystal panel.
  • the voltage output system further includes a seventh contact provided on the first circuit board body; the seventh contact is located on a side of the first circuit board body away from the second circuit board body; the second wiring will The seventh contact is electrically connected with the second contact and the fourth contact;
  • the seventh contact is electrically connected to a voltage measurement unit
  • the voltage measurement unit is used to measure the magnitude of the output voltage, and the resistance value of the variable resistor is adjusted according to the magnitude of the output voltage measured by the voltage measurement unit, so that the output voltage is a preset demand voltage.
  • the material of the seventh contact is tin.
  • the materials of the first, second, third, and fourth traces are all metals.
  • the invention also provides a liquid crystal display device, which comprises a liquid crystal panel, a flip-chip film bound to the liquid crystal panel, and an assembled circuit board bound to the flip-chip film;
  • the assembled circuit board is provided with the voltage output system.
  • a voltage output system provided by the present invention is provided with a variable resistor, and one end of the variable resistor is connected to the input voltage transmitted by the level conversion unit through a contact and a trace, and the variable resistor is The other end is electrically connected to the liquid crystal panel through a contact and a trace to output an output voltage.
  • the output voltage of the voltage output system can be preset.
  • the required voltage can conveniently and quickly provide output voltages of different voltage values to the liquid crystal panel, effectively simplify the experimental operation of the liquid crystal display device, and reduce the product cost.
  • the liquid crystal display device provided by the present invention can provide output voltages of different voltage values to the liquid crystal panel, effectively simplify the experimental operation of the liquid crystal display device, and have low cost.
  • FIG. 1 is a schematic structural diagram of a conventional voltage output system
  • FIG. 2 is a schematic diagram of the voltage output system of FIG. 1 with zero-ohm resistance removed and connected to a power source;
  • FIG. 3 is a schematic structural diagram of a voltage output system according to the present invention.
  • FIG. 4 is a schematic structural diagram of a liquid crystal display device of the present invention.
  • the present invention provides a voltage output system including a first circuit board body 11, a second circuit board body 12, a first contact 21 and a second contact 22 provided on the first circuit board body 11. , The third contact 31, the fourth contact 32 and the seventh contact 25, the fifth contact 23 and the sixth contact 24 provided on the second circuit board body 12, and the first circuit board body 11
  • the first and second traces 41 and 42, the third and fourth traces 43 and 44, and the variable resistor 50 are disposed in the second circuit board body 12.
  • the third contact 31 is electrically connected to the fifth contact 23, and the fourth contact 32 is electrically connected to the sixth contact 24.
  • the first wiring 41 electrically connects the first contact 21 and the third contact 31.
  • the second wiring 42 electrically connects the second contact 22, the fourth contact 32, and the seventh contact 25.
  • One end of the third trace 43 is electrically connected to the level conversion unit 60, and is connected to the input voltage provided by the level conversion unit 60, and the other end is electrically connected to the fifth contact 23.
  • One end of the fourth wiring 44 is electrically connected to the sixth contact 24, and the other end is electrically connected to the liquid crystal panel 1, and an output voltage is output to the liquid crystal panel 1.
  • the two ends of the variable resistor 50 are electrically connected to the first contact 21 and the second contact 22 respectively.
  • the seventh contact 25 is electrically connected to a voltage measurement unit 70, and the voltage measurement unit 70 is configured to measure an output voltage.
  • the first circuit board body 11 is disposed opposite to the second circuit board body 12.
  • the first contact 21, the second contact 22, the seventh contact 25 and the variable resistor 50 are all located on a side of the first circuit board body 11 away from the second circuit board body 12.
  • the third contacts 31 and the fourth contacts 32 are located on a side of the first circuit board body 11 near the second circuit board body 12.
  • the fifth contact 23 and the sixth contact 24 are located on a side of the second circuit board body 12 that is close to the first circuit board body 11.
  • variable resistor 50 two ends are respectively welded to the first contact 21 and the second contact 22.
  • the third contact 31 is welded to the fifth contact 23.
  • the fourth contact 32 is welded to the sixth contact 24.
  • the materials of the first contact 21, the second contact 22, the fifth contact 23, the sixth contact 24, and the seventh contact 25 can be selected from the materials commonly used in the prior art.
  • the first contact 21, the second contact 22, the fifth contact 23, the sixth contact 24, and the seventh contact 25 may be made of tin.
  • the materials of the third contacts 31 and the fourth contacts 32 are metal.
  • the materials of the first trace 41, the second trace 42, the third trace 43, and the fourth trace 44 are all metal.
  • the voltage output system of the present invention is provided with a variable resistor 50.
  • One end of the variable resistor 50 passes through the first contact 21, the first wiring 41, the third contact 31, the fifth contact 23,
  • the voltage input path formed by the third trace 43 is electrically connected to the level conversion unit 60, and is connected to the input voltage output by the level conversion unit 60.
  • the other end of the variable resistor 50 passes through the second contact 22, the second
  • the voltage output path composed of the trace 42, the fourth contact 32, the sixth contact 24, and the fourth trace 44 is electrically connected to the liquid crystal panel 1 and can output an output voltage to the liquid crystal panel 1.
  • the voltage output system is applied in In a liquid crystal display device, the voltage output system is set on an assembled circuit board composed of a combination of a C plate and an X plate in the liquid crystal display device.
  • the resistance of the variable resistor 50 can be changed.
  • the value of the output voltage of the voltage output system to the liquid crystal panel 1 is changed.
  • the specific operation is to increase the resistance of the variable resistor 50 so that the divided voltage of the variable resistor 50 becomes larger, thereby reducing the output voltage.
  • Voltage value The small resistance value of the variable resistor 50 reduces the divided voltage of the variable resistor 50, thereby increasing the voltage value of the output voltage, so that the liquid crystal panel 1 can be provided with different output voltage values at different stages of the experiment.
  • there is no need to repeatedly disassemble components which effectively simplifies the experimental operation of the liquid crystal display device, and avoids the failure of the voltage output system caused by repeated disassembly of components, which effectively reduces the product cost.
  • the voltage output system of the present invention adjusts the output voltage based on the principle of resistance voltage division.
  • the present invention also provides a The seventh contact 25 is electrically connected to the voltage measurement unit 70.
  • the output voltage can be measured by the voltage measurement unit 70, and the output voltage measured by the voltage measurement unit 70 and a preset demand voltage value can be measured.
  • the operability of voltage adjustment further simplifies the experimental operation of the liquid crystal display device.
  • the present invention further provides a liquid crystal display device, which includes a liquid crystal panel 1, a flip-chip film 2 bound to the liquid crystal panel 1, and a flip-chip film 2 Bundled assembled circuit board 3.
  • the assembled circuit board 3 is an assembled circuit board obtained by combining a C board and an X board in the prior art.
  • the assembled circuit board 3 is provided with the above-mentioned voltage output system, and is connected to the voltage output system.
  • An electrically connected level conversion unit is also provided on the assembled circuit board 3. The structure of the voltage output system will not be described repeatedly here.
  • the liquid crystal display device of the present invention uses the above-mentioned voltage output system, so the voltage input to its liquid crystal panel 1 can be easily adjusted, so that the liquid crystal display device can easily and quickly change the experiment during the test experiment.
  • the liquid crystal panel 1 is provided with output voltages of different voltage values, which simplifies the experimental operation of the liquid crystal display device and avoids the voltage output caused by repeated disassembly and assembly compared with the prior art. System failure, effectively reducing product costs.
  • the voltage output system of the present invention is provided with a variable resistor, and one end of the variable resistor is connected to the input voltage transmitted by the level conversion unit through the contact and the trace, and the other end of the variable resistor is passed
  • the contacts and traces are electrically connected to the liquid crystal panel to output an output voltage.
  • the output voltage of the voltage output system can be preset.
  • the required voltage can conveniently and quickly provide output voltages of different voltage values to the liquid crystal panel, effectively simplify the experimental operation of the liquid crystal display device, and reduce the product cost.
  • the liquid crystal display device of the present invention can provide output voltages of different voltage values to the liquid crystal panel, effectively simplify the experimental operation of the liquid crystal display device, and have low cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种电压输出系统及液晶显示装置。电压输出系统设置了一个可变电阻（50），将可变电阻（50）的一端通过触点（21,31和23）及走线（41和 43）接入电平转换单元(60)传输的输入电压，并将可变电阻（50）的另一端通过触点（22,32,和24）及走线(42和44)与液晶面板(1)电性连接而输出输出电压。将电压输出系统设置在液晶显示装置的组装电路板（3）上后，在对液晶显示装置进行测试实验时，通过调整可变电阻（50）的阻值，即可使电压输出系统的输出电压为预设的需求电压，能够方便快捷地向液晶面板（1）提供不同电压值的输出电压，有效简化液晶显示装置的实验操作，降低产品成本。

Description

电压输出系统及液晶显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种电压输出系统及液晶显示装置。
背景技术
随着显示技术的发展，液晶显示器(Liquid Crystal Display，LCD)等平面显示装置因具有高画质、省电、机身薄及应用范围广等优点，而被广泛的应用于手机、电视、个人数字助理、数字相机、笔记本电脑、台式计算机等各种消费性电子产品，成为显示装置中的主流。
现有市场上的液晶显示装置大部分为背光型液晶显示器，其包括液晶显示面板及背光模组(backlight module)。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
现有的液晶显示装置一般包括液晶面板、与液晶面板绑定的覆晶薄膜(COF)、与覆晶薄膜绑定的X板(X-board)、与X板通过柔性扁平电缆(FFC)电性连接的C板(C-board)。其中，C板上设置有电平转换芯片，用于将输入的单一电压准位信号转换为不同的电压准位信号并输出至液晶面板，也即将输入电压转换为输出电压进行输出。现有的电平转换芯片输出的输出电压的大小一般不能在很大范围内自由调节，因此，现有技术一般会设计与电平转换单元及液晶面板均电性连接的电压输出系统以控制输出至液晶面板的输出电压的电压大小。
请参阅图1，为现有的一种电压输出系统的结构示意图，该电压输出系统包括电路板本体100、设于电路板本体100上的第一焊锡接触点210及第二焊锡接触点220、焊接在第一焊锡接触点210及第二焊锡接触点220上的零欧姆电阻300以及设置在电路板本体100内的第一金属走线410及第二金属走线420。所述第一金属走线410的一端电性连接设置在液晶显示装置的C板上的电平转换单元500，另一端电性连接第一焊锡接触点210。所述第二金属走线420的一端电性连接第二焊锡接触点220，另一端电性连接液晶显示装置的液晶面板600。工作时，由电平转换单元500向该电压输出系统输入电压，通过零欧姆电阻300后输出至液晶面板中，当需要外灌电压 时，如图2所示，将零欧姆电阻300去掉，并在第二焊锡接触点220上焊接电源700，由电源700直接向液晶面板600提供具有特定电压值的输出电压。
当应用在X板与C板分开设置的液晶显示装置中时，上述的电压输出系统是设置C板上的。在进行可靠性实验时，通常先将一块具有完整的上述电压输出系统的C板投入实验环境中进行点灯实验，经过一定时间后，再换上一块具有去除了零欧姆电阻的上述电压输出系统，利用电源提供具有特定电压值的输出电压从而进行外灌电压测量实验，这样可以避免重复的拆装零欧姆电阻。然而，现有技术为了节约成本，常会设计一种将X板与C板合并在一起的组装电路板，该组装电路板直接通过覆晶薄膜绑定在液晶面板上，电压输出系统设计在该组装电路板上，此时，在进行可靠性实验时需要反复拆装电压输出系统的零欧姆电阻才能实现向液晶面板输出不同电压值的输出电压，不但使实验操作复杂，并且在反复拆装的过程中，电压输出系统的焊锡接触点很容易被氧化而无法再次焊接。
发明内容
本发明的目的在于提供一种电压输出系统，应用于液晶显示装置中，能够向液晶面板提供不同电压值的输出电压，有效简化液晶显示装置的实验操作，成本低廉。
本发明的另一目的在于提供一种液晶显示装置，能够向液晶面板提供不同电压值的输出电压，有效简化液晶显示装置的实验操作，成本低廉。
为实现上述目的，本发明首先提供一种电压输出系统，包括第一电路板本体、第二电路板本体、设于第一电路板本体上的第一触点、第二触点、第三触点及第四触点、设于第二电路板本体上的第五触点及第六触点、设于第一电路板本体内的第一走线与第二走线、设于第二电路板本体内的第三走线与第四走线以及可变电阻；
所述第三触点与第五触点电性连接，所述第四触点与第六触点电性连接；所述第一走线将第一触点与第三触点电性连接；所述第二走线将第二触点与第四触点电性连接；所述第三走线的一端接入输入电压，另一端电性连接第五触点；所述第四走线的一端电性连接第六触点，另一端输出输出电压；所述可变电阻的两端分别电性连接第一触点及第二触点。
所述第一电路板本体与第二电路板本体相对设置；
所述第一触点、第二触点及可变电阻均位于第一电路板本体远离第二 电路板本体的一侧；所述第三触点及第四触点均位于第一电路板本体靠近第二电路板本体的一侧；所述第五触点及第六触点均位于第二电路板本体靠近第一电路板本体的一侧。
所述可变电阻的两端分别焊接在第一触点及第二触点上；所述第三触点焊接在第五触点上；所述第四触点焊接在第六触点上。
所述第一触点、第二触点、第五触点及第六触点的材料均为锡。
所述第三触点及第四触点的材料均为金属。
所述第三走线的一端电性连接电平转换单元；所述输入电压由电平转换单元提供；
所述第四走线的另一端电性连接液晶面板，向所述液晶面板输出输出电压。
所述电压输出系统还包括设置在第一电路板本体上的第七触点；所述第七触点位于第一电路板本体远离第二电路板本体的一侧；所述第二走线将第七触点与第二触点及第四触点电性连接；
所述第七触点电性连接电压测量单元；
所述电压测量单元用于测量输出电压的大小，根据电压测量单元测量到的输出电压的大小调整可变电阻的阻值，使输出电压为预设的需求电压。
所述第七触点的材料为锡。
所述第一走线、第二走线、第三走线、第四走线的材料均为金属。
本发明还提供一种液晶显示装置，所述包括液晶面板、绑定在液晶面板上的覆晶薄膜、与覆晶薄膜绑定的组装电路板；
所述组装电路板上设有上述电压输出系统。
本发明的有益效果：本发明提供的一种电压输出系统设置了一个可变电阻，将可变电阻的一端通过触点及走线接入电平转换单元传输的输入电压，并将可变电阻的另一端通过触点及走线与液晶面板电性连接而输出输出电压。将该电压输出系统设置在液晶显示装置的组装电路板上后，在对液晶显示装置进行测试实验时，通过调整可变电阻的阻值，即可使该电压输出系统的输出电压为预设的需求电压，能够方便快捷地向液晶面板提供不同电压值的输出电压，有效简化液晶显示装置的实验操作，降低产品成本。本发明提供的一种液晶显示装置能够向液晶面板提供不同电压值的输出电压，有效简化液晶显示装置的实验操作，成本低廉。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为现有的一种电压输出系统的结构示意图；
图2为图1的电压输出系统将零欧姆电阻去掉并接入电源的示意图；
图3为本发明的电压输出系统的结构示意图；
图4为本发明的液晶显示装置的结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图3，本发明提供一种电压输出系统，包括第一电路板本体11、第二电路板本体12、设于第一电路板本体11上的第一触点21、第二触点22、第三触点31、第四触点32及第七触点25、设于第二电路板本体12上的第五触点23及第六触点24、设于第一电路板本体11内的第一走线41与第二走线42、设于第二电路板本体12内的第三走线43与第四走线44以及可变电阻50。
所述第三触点31与第五触点23电性连接，所述第四触点32与第六触点24电性连接。所述第一走线41将第一触点21与第三触点31电性连接。所述第二走线42将第二触点22、第四触点32、第七触点25电性连接。所述第三走线43的一端电性连接电平转换单元60，接入由电平转换单元60提供的输入电压，另一端电性连接第五触点23。所述第四走线44的一端电性连接第六触点24，另一端电性连接液晶面板1，向所述液晶面板1输出输出电压。所述可变电阻50的两端分别电性连接第一触点21及第二触点22。所述第七触点25电性连接电压测量单元70，所述电压测量单元70用于测量输出电压的大小。
具体地，所述第一电路板本体11与第二电路板本体12相对设置。所述第一触点21、第二触点22、第七触点25及可变电阻50均位于第一电路板本体11远离第二电路板本体12的一侧。所述第三触点31及第四触点32均位于第一电路板本体11靠近第二电路板本体12的一侧。所述第五触点23及第六触点24均位于第二电路板本体12靠近第一电路板本体11的一侧。
具体地，所述可变电阻50的两端分别焊接在第一触点21及第二触点22上。所述第三触点31焊接在第五触点23上。所述第四触点32焊接在第六触点24上。
具体地，所述第一触点21、第二触点22、第五触点23、第六触点24及第七触点25的材料可选择现有技术中常用作焊点的材料。例如，所述第一触点21、第二触点22、第五触点23、第六触点24及第七触点25的材料可均为锡。
具体地，所述第三触点31及第四触点32的材料均为金属。
具体地，所述第一走线41、第二走线42、第三走线43、第四走线44的材料均为金属。
需要说明的是，本发明的电压输出系统设置可变电阻50，该可变电阻50的一端通过由第一触点21、第一走线41、第三触点31、第五触点23、第三走线43组成的电压输入通路与电平转换单元60电性连接，接入电平转换单元60输出的输入电压，而可变电阻50的另一端通过由第二触点22、第二走线42、第四触点32、第六触点24、第四走线44组成的电压输出通路与液晶面板1电性连接，能够向液晶面板1输出输出电压，在将该电压输出系统应用于液晶显示装置时，将该电压输出系统设置在液晶显示装置中由C板及X板组合构成的组装电路板上，在对液晶显示装置进行测试实验时，可通过改变可变电阻50的阻值，改变该电压输出系统输出至液晶面板1的输出电压的电压值，具体操作为通过增大可变电阻50的电阻值，使得可变电阻50的分压变大，从而减小输出电压的电压值，通过减小可变电阻50的电阻值，使得可变电阻50的分压减小，从而增大输出电压的电压值，从而能够在实验的不同阶段向液晶面板1提供不同电压值的输出电压，相较于现有技术，无需反复拆装元器件，有效地简化了液晶显示装置的实验操作，并避免由于反复拆装元器件造成电压输出系统失效，有效地降低产品成本。
进一步地，由于液晶面板1中走线的阻值情况是不确定的，而本发明的电压输出系统调整输出电压是基于电阻分压原理，为方便对输出电压进行调整，本发明还设置了一个第七触点25，该第七触点25与电压测量单元70电性连接，可利用电压测量单元70对输出电压进行测量，将电压测量单元70测量到的输出电压与预设的需求电压值进行比较，根据电压测量单元70测量到的输出电压的大小调整可变电阻50的阻值，使输出电压为预设的需求电压，具体为当电压测量单元70测量到的输出电压大于预设的需求电压，则增加可变电阻50的阻值，当电压测量单元70测量到的输出电压小 于预设的需求电压，则减小可变电阻50的阻值，通过这种方式，进一步增强了输出电压调整的可操作性，进一步简化了液晶显示装置的实验操作。
请参阅图4，并结合图3，基于同一发明构思，本发明还提供一种液晶显示装置，所述包括液晶面板1、绑定在液晶面板1上的覆晶薄膜2、与覆晶薄膜2绑定的组装电路板3。
其中，所述组装电路板3为现有技术中将C板与X板进行组合而得到的组装电路板，所述组装电路板3上设有上述的电压输出系统，且与所述电压输出系统电性连接的电平转换单元也设置在该组装电路板3上。在此不再对电压输出系统的结构做重复性描述。
本发明的液晶显示装置，应用了上述的电压输出系统，因而可以方便地对输入至其液晶面板1的电压进行调整，从而该液晶显示装置在进行测试实验中，能够方便快捷地在实验的不同阶段向其液晶面板1提供不同电压值的输出电压，相较于现有技术，无需反复拆装元器件，有效地简化了液晶显示装置的实验操作，并避免由于反复拆装元器件造成电压输出系统失效，有效地降低产品成本。
综上所述，本发明的电压输出系统设置了一个可变电阻，将可变电阻的一端通过触点及走线接入电平转换单元传输的输入电压，并将可变电阻的另一端通过触点及走线与液晶面板电性连接而输出输出电压。将该电压输出系统设置在液晶显示装置的组装电路板上后，在对液晶显示装置进行测试实验时，通过调整可变电阻的阻值，即可使该电压输出系统的输出电压为预设的需求电压，能够方便快捷地向液晶面板提供不同电压值的输出电压，有效简化液晶显示装置的实验操作，降低产品成本。本发明的液晶显示装置能够向液晶面板提供不同电压值的输出电压，有效简化液晶显示装置的实验操作，成本低廉。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (18)

  1. 一种电压输出系统，包括第一电路板本体、第二电路板本体、设于第一电路板本体上的第一触点、第二触点、第三触点及第四触点、设于第二电路板本体上的第五触点及第六触点、设于第一电路板本体内的第一走线与第二走线、设于第二电路板本体内的第三走线与第四走线以及可变电阻；
    所述第三触点与第五触点电性连接，所述第四触点与第六触点电性连接；所述第一走线将第一触点与第三触点电性连接；所述第二走线将第二触点与第四触点电性连接；所述第三走线的一端接入输入电压，另一端电性连接第五触点；所述第四走线的一端电性连接第六触点，另一端输出输出电压；所述可变电阻的两端分别电性连接第一触点及第二触点。
  2. 如权利要求1所述的电压输出系统，其中，所述第一电路板本体与第二电路板本体相对设置；
    所述第一触点、第二触点及可变电阻均位于第一电路板本体远离第二电路板本体的一侧；所述第三触点及第四触点均位于第一电路板本体靠近第二电路板本体的一侧；所述第五触点及第六触点均位于第二电路板本体靠近第一电路板本体的一侧。
  3. 如权利要求2所述的电压输出系统，其中，所述可变电阻的两端分别焊接在第一触点及第二触点上；所述第三触点焊接在第五触点上；所述第四触点焊接在第六触点上。
  4. 如权利要求3所述的电压输出系统，其中，所述第一触点、第二触点、第五触点及第六触点的材料均为锡。
  5. 如权利要求1所述的电压输出系统，其中，所述第三触点及第四触点的材料均为金属。
  6. 如权利要求1所述的电压输出系统，其中，所述第三走线的一端电性连接电平转换单元；所述输入电压由电平转换单元提供；
    所述第四走线的另一端电性连接液晶面板，向所述液晶面板输出输出电压。
  7. 如权利要求2所述的电压输出系统，还包括设置在第一电路板本体上的第七触点；所述第七触点位于第一电路板本体远离第二电路板本体的一侧；所述第二走线将第七触点与第二触点及第四触点电性连接；
    所述第七触点电性连接电压测量单元；
    所述电压测量单元用于测量输出电压的大小，根据电压测量单元测量到的输出电压的大小调整可变电阻的阻值，使输出电压为预设的需求电压。
  8. 如权利要求7所述的电压输出系统，其中，所述第七触点的材料为锡。
  9. 如权利要求1所述的电压输出系统，其中，所述第一走线、第二走线、第三走线、第四走线的材料均为金属。
  10. 一种液晶显示装置，包括液晶面板、绑定在液晶面板上的覆晶薄膜、与覆晶薄膜绑定的组装电路板；
    所述组装电路板上设有如权利要求1所述的电压输出系统。
  11. 如权利要求10所述的液晶显示装置，其中，所述第一电路板本体与第二电路板本体相对设置；
    所述第一触点、第二触点及可变电阻均位于第一电路板本体远离第二电路板本体的一侧；所述第三触点及第四触点均位于第一电路板本体靠近第二电路板本体的一侧；所述第五触点及第六触点均位于第二电路板本体靠近第一电路板本体的一侧。
  12. 如权利要求11所述的液晶显示装置，其中，所述可变电阻的两端分别焊接在第一触点及第二触点上；所述第三触点焊接在第五触点上；所述第四触点焊接在第六触点上。
  13. 如权利要求12所述的液晶显示装置，其中，所述第一触点、第二触点、第五触点及第六触点的材料均为锡。
  14. 如权利要求10所述的液晶显示装置，其中，所述第三触点及第四触点的材料均为金属。
  15. 如权利要求10所述的液晶显示装置，其中，所述第三走线的一端电性连接电平转换单元；所述输入电压由电平转换单元提供；
    所述第四走线的另一端电性连接液晶面板，向所述液晶面板输出输出电压。
  16. 如权利要求11所述的液晶显示装置，还包括设置在第一电路板本体上的第七触点；所述第七触点位于第一电路板本体远离第二电路板本体的一侧；所述第二走线将第七触点与第二触点及第四触点电性连接；
    所述第七触点电性连接电压测量单元；
    所述电压测量单元用于测量输出电压的大小，根据电压测量单元测量到的输出电压的大小调整可变电阻的阻值，使输出电压为预设的需求电压。
  17. 如权利要求16所述的液晶显示装置，其中，所述第七触点的材料为锡。
  18. 如权利要求10所述的液晶显示装置，其中，所述第一走线、第二走线、第三走线、第四走线的材料均为金属。
PCT/CN2018/107777 2018-06-05 2018-09-26 电压输出系统及液晶显示装置 WO2019232987A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/312,286 US10984750B1 (en) 2018-06-05 2018-09-26 Voltage output system and liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810570573.6 2018-06-05
CN201810570573.6A CN108831390A (zh) 2018-06-05 2018-06-05 电压输出系统及液晶显示装置

Publications (1)

Publication Number Publication Date
WO2019232987A1 true WO2019232987A1 (zh) 2019-12-12

Family

ID=64144015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/107777 WO2019232987A1 (zh) 2018-06-05 2018-09-26 电压输出系统及液晶显示装置

Country Status (3)

Country Link
US (1) US10984750B1 (zh)
CN (1) CN108831390A (zh)
WO (1) WO2019232987A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101075028A (zh) * 2006-05-19 2007-11-21 群康科技(深圳)有限公司 液晶显示器印刷电路板模块
US20080198125A1 (en) * 2007-02-20 2008-08-21 Samsung Electroncs Co., Ltd. Circuit board and liquid crystal display including the same
CN102662265A (zh) * 2012-05-10 2012-09-12 深圳市华星光电技术有限公司 液晶显示模组及液晶显示装置
CN106057141A (zh) * 2016-05-04 2016-10-26 深圳市华星光电技术有限公司 伽马参考电压产生电路以及显示器
CN205986622U (zh) * 2016-08-26 2017-02-22 成都众乐泰科技有限公司 一种并联可变元器件的dc‑dc转换电路
CN106647044A (zh) * 2016-12-14 2017-05-10 深圳市华星光电技术有限公司 用于液晶显示面板的光配向装置
CN206179483U (zh) * 2016-10-08 2017-05-17 星源电子科技(深圳)有限公司 液晶模组的测试转接板

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841414A (en) * 1994-08-16 1998-11-24 Citizen Watch Co., Ltd. Liquid crystal display device
DE69840217D1 (de) * 1997-04-21 2008-12-24 Seiko Epson Corp Flüssigkristallanzeige, Herstellungsverfahren und elektronisches Gerät
TW505804B (en) * 1998-02-19 2002-10-11 Hitachi Ltd Liquid crystal display device
CN1685388A (zh) * 2002-09-25 2005-10-19 西铁城时计株式会社 显示设备
KR101015163B1 (ko) * 2003-12-30 2011-02-17 엘지디스플레이 주식회사 공통전압 발생회로
JP2005234496A (ja) * 2004-02-23 2005-09-02 Toshiba Matsushita Display Technology Co Ltd フリッカ補償回路
JP5066942B2 (ja) * 2007-03-02 2012-11-07 サンケン電気株式会社 マルチ放電管点灯装置
KR20080087525A (ko) * 2007-03-27 2008-10-01 삼성전자주식회사 액정표시장치와 액정표시장치의 구동방법
JP5033078B2 (ja) * 2008-08-06 2012-09-26 株式会社ジャパンディスプレイイースト 表示装置
CN202159474U (zh) * 2011-06-27 2012-03-07 深圳市华星光电技术有限公司 液晶面板的数据驱动系统和芯片、以及液晶显示装置
JP6358129B2 (ja) * 2015-02-26 2018-07-18 株式会社デンソー 電力変換装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101075028A (zh) * 2006-05-19 2007-11-21 群康科技(深圳)有限公司 液晶显示器印刷电路板模块
US20080198125A1 (en) * 2007-02-20 2008-08-21 Samsung Electroncs Co., Ltd. Circuit board and liquid crystal display including the same
CN102662265A (zh) * 2012-05-10 2012-09-12 深圳市华星光电技术有限公司 液晶显示模组及液晶显示装置
CN106057141A (zh) * 2016-05-04 2016-10-26 深圳市华星光电技术有限公司 伽马参考电压产生电路以及显示器
CN205986622U (zh) * 2016-08-26 2017-02-22 成都众乐泰科技有限公司 一种并联可变元器件的dc‑dc转换电路
CN206179483U (zh) * 2016-10-08 2017-05-17 星源电子科技(深圳)有限公司 液晶模组的测试转接板
CN106647044A (zh) * 2016-12-14 2017-05-10 深圳市华星光电技术有限公司 用于液晶显示面板的光配向装置

Also Published As

Publication number Publication date
CN108831390A (zh) 2018-11-16
US20210118397A1 (en) 2021-04-22
US10984750B1 (en) 2021-04-20

Similar Documents

Publication Publication Date Title
JP4503626B2 (ja) 感光素子を備えるタッチパネル式液晶表示器
US20190027104A1 (en) Clock signal output circuit and liquid crystal display device
KR20060097552A (ko) 액정 표시 장치 구동 시스템
CN107678216B (zh) 液晶显示装置
US20180210261A1 (en) Liquid crystal panel drive circuit and liquid crystal display device
WO2018082125A1 (zh) 阵列基板、液晶显示面板及液晶显示面板的制备方法
US20150042550A1 (en) Display panel having repairing structure
WO2020082467A1 (zh) 显示装置
US20170018246A1 (en) Pixel cell circuits of compensation feedback voltage
WO2017206630A1 (zh) 面板驱动装置以及显示装置
US20180247605A1 (en) Display driving circuits, driving methods and display apparatuses
US10705573B2 (en) Active-matrix organic light emitting diode module operable in bendable states and displaying method thereof
US20060066800A1 (en) Liquid crystal display device
WO2019232987A1 (zh) 电压输出系统及液晶显示装置
CN106708145B (zh) 多通道供电电路
US20080122779A1 (en) Liquid crystal display with driving voltage temperature compensation
CN109634339B (zh) 电压调整电路及电压调整方法
US10962845B1 (en) Driving system of display device, driving method and display device
CN108227253A (zh) 基板导向机构、基板传送装置及湿式设备
US20080186417A1 (en) Display panel and display apparatus having the same
CN104201167B (zh) 一种焊垫结构及显示装置
US20070139324A1 (en) Transflective liquid crystal display and method for adjusting gamma setting thereof
US10132690B2 (en) Temperature sensing system integrated in liquid crystal display panel and liquid crystal display panel
KR100483386B1 (ko) 리페어링에보상회로부를갖는액정표시장치
EP3907557A1 (en) Privacy circuit and driving method therefor, and display apparatus

Legal Events

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

Ref document number: 18921311

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18921311

Country of ref document: EP

Kind code of ref document: A1