CN102881263A - Liquid crystal display equipment, panel driving device and common calibrating and adjusting module - Google Patents

Liquid crystal display equipment, panel driving device and common calibrating and adjusting module Download PDF

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Publication number
CN102881263A
CN102881263A CN2011101953311A CN201110195331A CN102881263A CN 102881263 A CN102881263 A CN 102881263A CN 2011101953311 A CN2011101953311 A CN 2011101953311A CN 201110195331 A CN201110195331 A CN 201110195331A CN 102881263 A CN102881263 A CN 102881263A
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voltage
liquid crystal
electrically connected
source
gate
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CN2011101953311A
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Chinese (zh)
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许志豪
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冠捷投资有限公司
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Abstract

Liquid crystal display equipment comprises a panel driving device and a liquid crystal panel. The panel driving device is electrically connected with the liquid crystal panel and supplies source voltage, gate voltage and common voltage to the liquid crystal panel. The panel driving device comprises a pixel driving module and a common calibrating and adjusting module, wherein the pixel driving module receives a video signal, generates the source voltage and the gate voltage based on the video signal, and is provided with a scaler; the scaler is provided with a storage unit for storing a digital default calibrating and adjusting voltage value; the common calibrating and adjusting module is provided with a digital-analog converter and a common voltage generator; the digital-analog converter is used for reading the default calibrating and adjusting voltage value and conducting digital-analog conversion to obtain analog voltage correlative to the default calibrating and adjusting voltage value; and the common voltage generator receives the analog voltage and conducts level shift to generate the common voltage.

Description

液晶显示设备、面板驱动装置及公共极校调模组 The liquid crystal display device, and a common electrode panel driving device calibrated module

技术领域 FIELD

[0001] 本发明涉及一种设备、装置及模组,特别是指一种液晶显示设备、面板驱动装置及公共极校调模组。 [0001] The present invention relates to an apparatus, means and modules, and particularly to a liquid crystal display device, and a common electrode panel driving device calibrated module.

背景技术 Background technique

[0002] 如图I所示,一种以往的液晶显示设备,包含:一面板驱动装置I和一液晶面板2。 [0002] FIG I in a conventional liquid crystal display device, comprising: a panel driving device and a liquid crystal panel I 2.

[0003] 该面板驱动装置I用以产生一源极电压VS、一栅极电压VG,及一公共极电压VC0M。 [0003] The panel driving means I for generating a source voltage VS, a gate voltage VG, and a common electrode voltage Vcom.

[0004] 该液晶面板2电连接于该面板驱动装置I以接收该源极电压VS、该栅极电压VG,及该公共极电压VC0M,且该液晶面板2包括一个像素单元20,该像素单元具有一薄膜晶体管(Thin Film Transistor)TFT、一储存电容Cs,和一液晶电容Cl。 [0004] The liquid crystal panel 2 is electrically connected to the panel drive device I to receive the source voltage VS, the voltage VG of the gate, and the common electrode voltage Vcom, and the liquid crystal panel 2 includes a pixel unit 20, the pixel unit having a thin film transistor (thin film transistor) TFT, a storage capacitor Cs, and a liquid crystal capacitor Cl.

[0005] 该薄膜晶体管TFT具有一接收该源极电压VS的源极端、一接收该栅极电压VG的栅极端,及一漏极。 [0005] The thin film transistor TFT having a source terminal for receiving the source voltage VS and the gate terminal receives a gate voltage VG and a drain.

[0006] 该储存电容Cs具有一电连接于该薄膜晶体管TFT的漏极的第一端,及一接地的第 [0006] The storage capacitor Cs having a first electrically connected to the drain of the thin film transistor TFT of a first end, and a ground

~· -5.JJU ~ · -5.JJU

-~-¾ O - ~ -¾ O

[0007] 液晶电容Cl具有一电连接于该薄膜晶体管TFT的漏极的第一端,及一接收该公共极电压VCOM的第二端。 [0007] The liquid crystal capacitor Cl having a drain electrode electrically connected to the thin film transistor TFT of a first end and a second end receives the common electrode voltage VCOM.

[0008] <面板驱动装置> [0008] <panel driving device>

[0009] 该面板驱动转置I包括一像素驱动模组10,及一公共极校调模组11。 [0009] The panel driving transposition I includes a pixel driving module 10, and a common electrode calibrated module 11.

[0010] 像素驱动模组10接收一视讯信号,并据以产生该源极电压VS,及该栅极电压VG,且该像素驱动模组10具有一缩放调整器(scaler) 101、一时序控制器(TimingController, T-CON) 102、一栅极驱动器(Gate Driver) 103,及一源极驱动器(SourceDriver)104。 [0010] The pixel driving module 10 receives a video signal, and accordingly to generate the source voltage VS, and the voltage VG of the gate, and the 10 pixel driving module 101, a timing control having a zoom adjuster (Scaler) device (TimingController, T-CON) 102, a gate driver (gate driver) 103, and a source driver (SourceDriver) 104.

[0011] 该缩放调整器101具有一储存单元105,且接收该视讯信号,并将该视讯信号进行规格转换以产生一低压差分信号(Low Voltage Differential Signal, LVDS),该储存单元105用于储存使用者调整过的设定,例如背光的调整。 [0011] The zoom adjuster 101 has a storage unit 105, and receives the video signal, and the specifications for converting the video signal to generate a low voltage differential signal (Low Voltage Differential Signal, LVDS), the storage unit 105 for storing user settings adjusted such as adjusting the backlight.

[0012] 时序控制器102电连接于该缩放调整器101以接收该低压差分信号,并对其进行处理以分别得到一具有时脉(clock)信息和像素值的源极控制信号,及一栅极控制信号。 [0012] The timing controller 102 is electrically connected to the zoom adjuster 101 to receive the low voltage differential signal, respectively, and processed to obtain a source having a clock (Clock) and a pixel value of the information signal the control electrode, and a gate pole control signal.

[0013] 该栅极驱动器103电连接于该时序控制器102以接收该栅极控制信号,并据以产生该栅极电压VG。 [0013] The gate driver 103 is electrically connected to the timing controller 102 to receive the gate control signal, and accordingly to generate the gate voltage VG.

[0014] 该源极驱动器104电连接于该时序控制器102以接收该源极控制信号,并据以产生该大小相关于该像素值的源极电压VS。 [0014] The electrode 104 of the electric drive source is connected to the timing controller 102 receives the control signal source, and accordingly to generate the magnitude associated with the pixel value of the source voltage VS.

[0015] 公共极校调模组11具有一电可擦除可编程只读存储器(electrically erasableprogrammable read only memory,EEPR0M) 110>一数模转换器111,及一公共极电压产生器(common voltage generator)112。 [0015] The common electrode 11 having a calibrated module electrically erasable programmable read only memory (electrically erasableprogrammable read only memory, EEPR0M) 110> a digital to analog converter 111, and a common electrode voltage generator (common voltage generator ) 112.

[0016] 该电可擦除可编程只读存储器110用于储存一数字形式的默认校调电压值。 [0016] The electrically erasable programmable read only memory 110 for storing default a calibrated voltage values ​​in digital form.

[0017] 数模转换器111电连接于该电可擦除可编程只读存储器110以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压。 [0017] DAC 111 is electrically connected to the electrically erasable programmable read only memory 110 to read the default tone correction voltage value, and the analog conversion to obtain an associated calibrated analog voltage to the default value Voltage.

[0018] 公共极电压产生器112电连接于该数模转换器111以接收该模拟电压,并根据该模拟电压进行电平偏移来产生该公共极电压。 [0018] The common voltage generator 112 is electrically connected to the digital to analog converter 111 receives the analog voltage, and based on the level shifted analog voltage to generate the common electrode voltage.

[0019] 但是以往的液晶显不设备具有以下缺点: [0019] However, the conventional liquid crystal display device does not have the following drawbacks:

[0020] I.为避免该液晶显示设备所显示的画面发生闪烁现象,在该液晶显示设备出面板厂前必须反复对该液晶显示设备进行校调来得到一最佳的默认校调电压值,以用于产生该公共极电压(common voltage, VC0M),导致增加出厂前的校调时间。 [0020] I. In order to avoid the liquid crystal display screen of the display device flicker phenomenon occurs, the liquid crystal display in the liquid crystal display apparatus must repeatedly be calibrated to obtain an optimal default value before the correction voltage adjusting apparatus MILL come forward, for generating the common electrode voltage (common voltage, VC0M), resulting in an increase in time before the tone correction factory.

[0021] 2.需要利用该电可擦除可编程只读存储器110来储存该默认校调电压值,增加硬件成本。 [0021] 2. The need to use electrically erasable programmable read only memory 110 to store the default value of the offset voltage correction, increased hardware costs. 发明内容 SUMMARY

[0022] 本发明的第一目的是在提供一种液晶显示设备。 [0022] The first object of the present invention is to provide a liquid crystal display apparatus.

[0023] 本发明液晶显示设备,包含: [0023] The present invention is a liquid crystal display device, comprising:

[0024] 一面板驱动装置,包括: [0024] a panel driving apparatus comprising:

[0025] 一像素驱动模组,接收一视讯信号,并据以产生一源极电压, [0025] The pixel driving module, to receive a video signal, and accordingly generate a voltage source,

[0026] 及一栅极电压,且该像素驱动模组具有: [0026] and a gate voltage, and the pixel drive module having:

[0027] —缩放调整器,该缩放调整器具有一储存单元,该储存单元用于储存一数字形式的默认校调电压值; [0027] - a scaling unit, which scaling adjuster having a storage unit, the storage unit default calibrated for storing a voltage value in digital form;

[0028]及 [0028] and

[0029] 一公共极校调模组,具有: [0029] a very public school transfer module includes:

[0030] 一数模转换器,电连接于该缩放调整器的储存单元以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压;及 [0030] a digital to analog converter, electrically connected to the scaled adjuster storage units to read the default tone correction voltage value, and the analog conversion to obtain an analog voltage related to the default tone correction voltage value; and

[0031] 一公共极电压产生器,电连接于该数模转换器以接收该模拟电压,并根据该模拟电压进行电平偏移来产生该公共极电压; [0031] a common electrode voltage generator electrically connected to the digital to analog converter to receive the analog voltage, and based on the level shifted analog voltage to generate the common electrode voltage;

[0032]及 [0032] and

[0033] 一液晶面板,电连接于该面板驱动装置以接收该源极电压、该栅极电压,及该公共极电压。 [0033] a liquid crystal panel, the panel is electrically connected to the drive means to receive the source voltage, the gate voltage, and the common electrode voltage.

[0034] 较佳地,该缩放调整器接收该视讯信号,并将该视讯信号进行规格转换以产生一低压差分信号,且该像素驱动模组还包括: [0034] Preferably, the zoom adjuster receives the video signal, and the specifications for converting the video signal to generate a low voltage differential signal, and the pixel driving module further comprises:

[0035] 一时序控制器,电连接于该缩放调整器以接收该低压差分信号,并对其进行处理以分别得到一具有时脉信息和像素值的源极控制信号,及一栅极控制信号; [0035] a timing controller, electrically connected to the scaled adjusted to receive the low voltage differential signal, respectively, and processed to obtain a source having a clock electrode of the pixel value information and control signal, a gate control signal, and ;

[0036] 一栅极驱动器,电连接于该时序控制器以接收该栅极控制信号,并据以产生该栅极电压;及 [0036] a gate driver electrically connected to the timing controller to receive the gate control signal, and accordingly to generate the gate voltage; and

[0037] —源极驱动器,电连接于该时序控制器以接收该源极控制信号,并据以产生该大小相关于该像素值的源极电压。 [0037] - the source driver, is electrically connected to the timing controller to receive the control signal source, and accordingly to generate the magnitude value related to the pixel source voltage.

[0038] 较佳地,该液晶面板包括一个像素单元,该像素单元具有: [0038] Preferably, the liquid crystal panel comprises a pixel unit, the pixel unit having:

[0039] 一薄膜晶体管,具有一接收该源极电压的源极端、一接收该栅极电压的栅极端,及一漏极;及 [0039] a thin film transistor having a source terminal receives the source voltage, the gate terminal receives a gate voltage, and a drain electrode; and

[0040] 一液晶电容,具有一电连接于该薄膜晶体管的漏极的第一端,及一接收该公共极电压的第二端。 [0040] a liquid crystal capacitor having a drain electrode electrically connected to the thin film transistor of a first end and a second end for receiving the common electrode voltage.

[0041] 较佳地,该像素单元还具有: [0041] Preferably, the pixel unit further includes:

[0042] 一储存电容,具有一电连接于该薄膜晶体管的漏极的第一端,及一接地的第二端。 [0042] a storage capacitor having a drain electrode electrically connected to the thin film transistor of a first end and a second end grounded.

[0043] 较佳地,该储存单元可以是一非易失性随机访问存储器。 [0043] Preferably, the storage unit may be a non-volatile random access memory.

[0044] 本发明的第二目的,即在提供一种面板驱动装置。 [0044] The second object of the present invention, i.e. to provide a panel driving device.

[0045] 本发明面板驱动装置,适用电连接于一液晶面板并提供一源极电压、一栅极电压,及一公共极电压到该液晶面板,且该面板驱动装置包含: [0045] The panel driving apparatus of the present invention is applied to a liquid crystal panel is electrically connected to a source voltage and provides a gate voltage and a common voltage to the liquid crystal panel, and the panel driving apparatus comprising:

[0046] —像素驱动模组,接收一视讯信号,并据以产生该源极电压,及该栅极电压,且该像素驱动模组具有: [0046] - pixel driving module, to receive a video signal, and accordingly to generate the source voltage and the gate voltage, and the pixel drive module having:

[0047] 一缩放调整器,该缩放调整器具有一储存单元,该储存单元用于储存一数字形式的默认校调电压值; [0047] a zoom adjuster, the adjuster having a scaling storage means, the default value of the offset voltage correction unit for storing the storage of a digital form;

[0048]及 [0048] and

[0049] 一公共极校调模组,具有: [0049] a very public school transfer module includes:

[0050] 一数模转换器,电连接于该缩放调整器的储存单元以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压;及 [0050] a digital to analog converter, electrically connected to the scaled adjuster storage units to read the default tone correction voltage value, and the analog conversion to obtain an analog voltage related to the default tone correction voltage value; and

[0051] 一公共极电压产生器,电连接于该数模转换器以接收该模拟电压,并根据该模拟电压进行电平偏移来产生该公共极电压。 [0051] a common electrode voltage generator electrically connected to the digital to analog converter to receive the analog voltage, and based on the level shifted analog voltage to generate the common electrode voltage.

[0052] 本发明的第三目的,即在提供一种公共极校调模组。 [0052] The third object of the present invention, i.e. to provide a common electrode calibrated module.

[0053] 本发明公共极校调模组,应用于一面板驱动装置中,该面板驱动装置电连接于一液晶面板并提供一源极电压、一栅极电压,及一公共极电压到该液晶面板,且该面板驱动装置包含一缩放调整器,该缩放调整器具有一储存单元,该储存单元用于储存一数字形式的默认校调电压值,且该公共极校调模组包含: [0053] The present invention is a common electrode calibrated module, a panel driving apparatus is applied, the panel driving device of a liquid crystal panel is electrically connected to a source voltage and provides a gate voltage and a common voltage to the liquid crystal panel, and the panel driving means includes a zoom adjuster, adjusting the scaling having a storage unit, the storage unit for storing a default calibrated voltage values ​​in digital form, and the common electrode calibrated module comprises:

[0054] 一数模转换器,电连接于该缩放调整器的储存单元以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压;及 [0054] a digital to analog converter, electrically connected to the scaled adjuster storage units to read the default tone correction voltage value, and the analog conversion to obtain an analog voltage related to the default tone correction voltage value; and

[0055] 一公共极电压产生器,电连接于该数模转换器以接收该模拟电压,并根据该模拟电压进行电平偏移来产生该公共极电压。 [0055] a common electrode voltage generator electrically connected to the digital to analog converter to receive the analog voltage, and based on the level shifted analog voltage to generate the common electrode voltage.

[0056] 本发明的有益效果在于:面板厂将可以不用调整该液晶显示设备的该默认校调电压值,而是交由系统厂生产线上调整该默认校调电压值,因此可以减少面板厂的调校时间以及搭配系统所产生相容性问题,而且利用缩放调整器的储存单元来储存该默认校调电压值,而不需利用额外的电可擦除可编程只读存储器来储存该默认校调电压值,相较于背景技术可降低硬件成本。 [0056] Advantageous effects of the present invention is that: the panel plant can not adjust the default of the liquid crystal display device calibrated voltage values, but referred to the system to adjust the default factory production line calibrated voltage values, the panel can be reduced plant compatibility problems with the system and adjust the time generated, and the storage unit using the zoom adjuster to store the default value of the offset voltage correction, without the use of additional electrically erasable programmable read only memory to store the default correction adjusting the voltage value, compared to the background art can reduce the hardware cost.

附图说明 BRIEF DESCRIPTION

[0057] 图I是一种以往的液晶显示设备的电路图; A circuit diagram of the device [0057] FIG. I is a conventional liquid crystal display;

[0058] 图2是本发明液晶显示设备的较佳实施例的电路图。 [0058] FIG. 2 is a circuit diagram of a liquid crystal display of the present invention, a preferred embodiment of the apparatus.

具体实施方式 Detailed ways

[0059] 下面结合附图及实施例对本发明进行详细说明。 [0059] The following embodiments in conjunction with the accompanying drawings and embodiments of the present invention will be described in detail.

[0060] 如图2所不,本发明液晶显不设备的较佳实施例,包含:一面板驱动装置3和一液晶面板4。 [0060] FIG. 2 is not a liquid crystal device of the present invention is not significantly preferred embodiment, comprises: a panel driving a liquid crystal panel means 3 and 4.

[0061] 该面板驱动装置3用以产生一源极电压VS、一栅极电压VG,及一公共极电压VC0M。 [0061] The panel driving means 3 for generating a source voltage VS, a gate voltage VG, and a common electrode voltage Vcom.

[0062] 该液晶面板4电连接于该面板驱动装置3以接收该源极电压VS、该栅极电压VG,及该公共极电压VC0M,且该液晶面板包括一个像素单元40,该像素单元40具有一薄膜晶体管(Thin Fim Transistor)TFT、一储存电容Cs,和一液晶电容Cl。 [0062] The liquid crystal panel 4 is electrically connected to the panel driving means 3 for receiving the source voltage VS, the voltage VG of the gate, and the common electrode voltage Vcom, and the liquid crystal panel comprises a pixel unit 40, the pixel unit 40 having a thin film transistor (thin Fim transistor) TFT, a storage capacitor Cs, and a liquid crystal capacitor Cl.

[0063] 该薄膜晶体管TFT具有一接收该源极电压VS的源极端、一接收该栅极电压VG的栅极端,及一漏极。 [0063] The thin film transistor TFT having a source terminal for receiving the source voltage VS and the gate terminal receives a gate voltage VG and a drain.

[0064] 该储存电容Cs具有一电连接于该薄膜晶体管TFT的漏极的第一端,及一接地的第 [0064] The storage capacitor Cs having a first electrically connected to the drain of the thin film transistor TFT of a first end, and a ground

~· -5.JJU ~ · -5.JJU

-~-¾ O - ~ -¾ O

[0065] 液晶电容Cl具有一电连接于该薄膜晶体管TFT的漏极的第一端,及一接收该公共极电压VCOM的第二端。 [0065] The liquid crystal capacitor Cl having a drain electrode electrically connected to the thin film transistor TFT of a first end and a second end receives the common electrode voltage VCOM.

[0066] <面板驱动装置> [0066] <panel driving device>

[0067] 该面板驱动装置3包括一像素驱动模组5,及一公共极校调模组6。 [0067] The panel driving apparatus 3 includes a pixel driving module 5 and a common electrode calibrated module 6.

[0068] 像素驱动模组5接收一视讯信号,并据以产生该源极电压VS,及该栅极电压VG,且该像素驱动模组5具有一缩放调整器(scaler) 51、一时序控制器(Timing Controller,T-CON) 52>一栅极驱动器(Gate Driver) 53,及一源极驱动器(Source Driver) 54。 [0068] The pixel driving module 5 receives a video signal, and accordingly to generate the source voltage VS, and the voltage VG of the gate, and the pixel driving module 551, a timing control having a zoom adjuster (Scaler) is (Timing controller, T-CON) 52> a gate driver (gate driver) 53, and a source driver (source driver) 54.

[0069] 该缩放调整器51具有一储存单元50,且接收该视讯信号,并将该视讯信号进行规格转换以产生一低压差分信号(Low Voltage Differential Signal, LVDS),该储存单元50用于储存一数字形式的默认校调电压值,且该储存单元50可以是非易失性随机访问存储器(NVRAM),该非易失性随机访问存储器包含电可擦除可编程只读存储器、只读存储器(Read Only Memory, ROM)及闪存(flash memory)。 [0069] The zoom adjuster 51 has a storage unit 50, and receives the video signal, and the specifications for converting the video signal to generate a low voltage differential signal (Low Voltage Differential Signal, LVDS), the storage unit 50 for storing the default value is a calibrated voltage in digital form, and the storage unit 50 may be a non-volatile random access memory (NVRAM), the nonvolatile random access memory comprises an electrically erasable programmable read only memory, read only memory ( Read Only Memory, ROM) and a flash memory (flash memory).

[0070] 时序控制器52电连接于该缩放调整器51以接收该低压差分信号,并对其进行处理以分别得到一具有时脉(clock)信息和像素值的源极控制信号,及一栅极控制信号。 [0070] The timing controller 52 electrically connected to the scaled regulator 51 to receive the low voltage differential signal, respectively, and processed to obtain a source having a clock (Clock) and a pixel value of the information signal the control electrode, and a gate pole control signal.

[0071] 该栅极驱动器53电连接于该时序控制器52以接收该栅极控制信号,并据以产生该栅极电压VG。 [0071] The gate driver 53 is electrically connected to the timing controller 52 to receive the gate control signal, and accordingly to generate the gate voltage VG.

[0072] 该源极驱动器54电连接于该时序控制器52以接收该源极控制信号,并据以产生该大小相关于该像素值的源极电压VS。 [0072] The power source driver 54 is connected to the timing controller 52 to receive the control signal source, and accordingly to generate the magnitude associated with the pixel value of the source voltage VS.

[0073] 公共极校调模组6具有一数模转换器61,及一公共极电压产生器(commonvoltage generator)62。 [0073] The common electrode 6 having a calibrated digital to analog converter module 61, and a common electrode voltage generator (commonvoltage generator) 62.

[0074] 数模转换器61电连接于该缩放调整器51的储存单元50以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压。 [0074] DAC 61 is electrically connected to the zoom adjuster 50 to the storage unit 51 reads the default tone correction voltage value, and the analog conversion to obtain a calibrated relation to the default value of the voltage analog voltage.

[0075] 公共极电压产生器62电连接于该数模转换器61以接收该模拟电压,并根据该模拟电压进行电平偏移来产生该公共极电压VC0M。 [0075] The common electrode voltage generator 62 is electrically connected to the digital to analog converter to receive the analog voltage 61, and based on the level shifted analog voltage to generate the common electrode voltage Vcom.

[0076] 综上所述,上述实施例具有以下优点: [0076] In summary, the above embodiment has the following advantages:

[0077] I.面板厂将可以不用调整该液晶显示设备的该默认校调电压值,而是交由系统厂生产线上调整该默认校调电压值,因此可以减少面板厂的调校时间以及搭配系统所产生相容性问题。 [0077] I. panel plant to the liquid crystal display can not adjust the voltage value of the default calibrated equipment, but referred to the system to adjust the default factory production line calibrated voltage values, the panel can be reduced with time, and tuning plant compatibility problems generated by the system.

[0078] 2.利用缩放调整器的储存单元50来储存该默认校调电压值,而不需利用额外的电可擦除可编程只读存储器110 (参阅图I)来储存该默认校调电压值,相较于背景技术可降低硬件成本。 [0078] 2. Using the zoom adjuster storage unit 50 to store the default value of the offset voltage correction, without the use of additional electrically erasable programmable read only memory 110 (see FIG. I) to store the default calibrated voltage value, compared with the prior art can reduce hardware costs.

[0079] 但以上所述者,仅为本发明的较佳实施例而已,当不能以此限定本发明实施的范围,即凡依本发明权利要求书及说明书内容所作的简单的等效变化与修饰,皆仍属本发明的范围。 [0079] However, the above are merely preferred embodiments of the present invention, only when the simple equivalent variations are not to limit the scope of this embodiment of the present invention, i.e., where claimed under this invention and the claims made by the content of the specification modifications, are still the scope of the present invention. · ·

Claims (10)

1. 一种液晶显示设备,其特征在于:该液晶显示设备包含: 一面板驱动装置,包括: 一像素驱动模组,接收一视讯信号,并据以产生一源极电压,及一栅极电压,且该像素驱动模组具有: 一缩放调整器,该缩放调整器具有一储存单元,该储存单元用于储存一数字形式的默认校调电压值; 及一公共极校调模组,具有: 一数模转换器,电连接于该缩放调整器的储存单元以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压;及一公共极电压产生器,电连接于该数模转换器以接收该模拟电压,并根据该模拟电压进行电平偏移来产生公共极电压; 及一液晶面板,电连接于该面板驱动装置以接收该源极电压、该栅极电压,及该公共极电压。 1. A liquid crystal display apparatus, wherein: the liquid crystal display device comprising: a panel driving apparatus, comprising: a pixel driving module, to receive a video signal and accordingly generating a source voltage and a gate voltage , and the pixel drive module having: a zoom adjuster, the adjuster having a scaling storage means, the default value of the calibrated voltage storage unit for storing a digital form; and a common electrode calibrated module having: a digital to analog converter, the storage unit is electrically connected to the scaled adjuster to read the default tone correction voltage value, and the analog conversion to obtain an analog voltage related to the default tone correction voltage; and a common electrode voltage generator, electrically connected to the digital to analog converter to receive the analog voltage, and based on the level shifted analog voltage to generate the common electrode voltage; and a liquid crystal panel, the panel is electrically connected to the driving means to receive the source voltage, the gate voltage, and the common electrode voltage.
2.根据权利要求I所述的液晶显示设备,其特征在于:该缩放调整器接收该视讯信号,并将该视讯信号进行规格转换以产生一低压差分信号,且该像素驱动模组还包括: 一时序控制器,电连接于该缩放调整器以接收该低压差分信号,并对其进行处理以分别得到一具有时脉信息和像素值的源极控制信号,及一栅极控制信号; 一栅极驱动器,电连接于该时序控制器以接收该栅极控制信号,并据以产生该栅极电压;及一源极驱动器,电连接于该时序控制器以接收该源极控制信号,并据以产生该大小相关于该像素值的源极电压。 I 2. The liquid crystal display according to claim, characterized in that: the zoom adjuster receives the video signal, and the specifications for converting the video signal to generate a low voltage differential signal, and the pixel driving module further comprises: a timing controller, electrically connected to the scaled adjusted to receive the low voltage differential signal, respectively, and processed to obtain a source having a clock electrode of the pixel value information and control signal, and a gate control signal; and a gate driver, is electrically connected to the timing controller to receive the gate control signal, and accordingly to generate the gate voltage; and a source driver, a timing controller is electrically connected to the source to receive the control signal, and accordingly to generate the source voltage magnitude associated with the pixel value.
3.根据权利要求I所述的液晶显示设备,其特征在于:该液晶面板包括一个像素单元,该像素单元具有: 一薄膜晶体管,具有一接收该源极电压的源极端、一接收该栅极电压的栅极端,及一漏极;及一液晶电容,具有一电连接于该薄膜晶体管的漏极的第一端,及一接收该公共极电压的第二端。 The liquid crystal display according to claim I, characterized in that: the liquid crystal panel comprises a pixel unit, the pixel unit comprising: a thin film transistor having a source terminal receives the source voltage, a gate receiving the the gate voltage terminal, and a drain electrode; and a liquid crystal capacitor having a drain electrode electrically connected to the thin film transistor of a first end and a second end for receiving the common electrode voltage.
4.根据权利要求3所述的液晶显示设备,其特征在于:该像素单元还具有: 一储存电容,具有一电连接于该薄膜晶体管的漏极的第一端,及一接地的第二端。 4. The liquid crystal display device of claim 3, wherein: the pixel unit further includes: a storage capacitor having a second terminal electrically connected to the drain of the thin film transistor, a first terminal, and a grounded .
5.根据权利要求I所述的液晶显示设备,其特征在于:该储存单元可以是一非易失性随机访问存储器。 According to claim I of the liquid crystal display device, wherein: the storage unit may be a non-volatile random access memory.
6. 一种面板驱动装置,适用电连接于一液晶面板并提供一源极电压、一栅极电压,及一公共极电压到该液晶面板,其特征在于:该面板驱动装置包含: 一像素驱动模组,接收一视讯信号,并据以产生该源极电压,及该栅极电压,且该像素驱动模组具有: 一缩放调整器,该缩放调整器具有一储存单元,该储存单元用于储存一数字形式的默认校调电压值;及一公共极校调模组,具有: 一数模转换器,电连接于该缩放调整器的储存单元以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压;及一公共极电压产生器,电连接于该数模转换器以接收该模拟电压,并根据该模拟电压进行电平偏移来产生该公共极电压。 A panel driving device for a liquid crystal panel is electrically connected to a source voltage and provides a gate voltage and a common voltage to the liquid crystal panel, wherein: the panel driving device comprising: a pixel driving module, receiving a video signal, and accordingly to generate the source voltage and the gate voltage, and the pixel drive module having: a zoom adjuster, adjusting the scaling having a storage unit, the storage unit for storing a calibrated digital form default voltage; and a common electrode calibrated module, comprising: a digital to analog converter, electrically connected to the scaled adjuster storage units to read the default tone correction voltage value, and the number of related analog conversion to obtain a calibrated voltage to the default value of the analog voltage; and a common electrode voltage generator electrically connected to the digital to analog converter for receiving the analog voltage and an analog voltage level based on the offset generating the common electrode voltage.
7.根据权利要求6所述的面板驱动装置,其特征在于:该液晶面板包括一个像素单元,该像素单元具有: 一薄膜晶体管,具有一接收该源极电压的源极端、一接收该栅极电压的栅极端,及一漏极; 一储存电容,具有一电连接于该薄膜晶体管的漏极的第一端,及一接地的第二端'及一液晶电容,具有一电连接于该薄膜晶体管的漏极的第一端,及一接收该公共极电压的第二端。 7. The panel driving apparatus according to claim 6, wherein: the liquid crystal panel comprises a pixel unit, the pixel unit comprising: a thin film transistor having a source terminal receives the source voltage, a gate receiving the the gate voltage terminal, and a drain; a storage capacitor having a drain electrode electrically connected to the thin film transistor first terminal, a second terminal and a ground 'and a liquid crystal capacitor having an electrical connection to the film a first end, a second end, and a common electrode receiving the voltage of the drain of the transistor.
8.根据权利要求6所述的面板驱动装置,其特征在于:该储存单元是一非易失性随机访问存储器。 8. The panel driving apparatus according to claim 6, wherein: the storage unit is a nonvolatile random access memory.
9.根据权利要求6所述的面板驱动装置,其特征在于:该缩放调整器接收该视讯信号,并将该视讯信号进行规格转换以产生一低压差分信号,且该像素驱动模组还包括: 一时序控制器,电连接于该缩放调整器以接收该低压差分信号,并对其进行处理以分别得到一具有时脉信息和像素值的源极控制信号,及一栅极控制信号; 一栅极驱动器,电连接于该时序控制器以接收该栅极控制信号,并据以产生该栅极电压;及一源极驱动器,电连接于该时序控制器以接收该源极控制信号,并据以产生该大小相关于该像素值的源极电压。 9. The panel driving apparatus according to claim 6, wherein: the zoom adjuster for receiving the video signal, and the specifications for converting the video signal to generate a low voltage differential signal, and the pixel driving module further comprises: a timing controller, electrically connected to the scaled adjusted to receive the low voltage differential signal, respectively, and processed to obtain a source having a clock electrode of the pixel value information and control signal, and a gate control signal; and a gate driver, is electrically connected to the timing controller to receive the gate control signal, and accordingly to generate the gate voltage; and a source driver, a timing controller is electrically connected to the source to receive the control signal, and accordingly to generate the source voltage magnitude associated with the pixel value.
10. 一种公共极校调模组,应用于一面板驱动装置中,该面板驱动装置电连接于一液晶面板并提供一源极电压、一栅极电压,及一公共极电压到该液晶面板,且该面板驱动装置包含一缩放调整器,该缩放调整器具有一储存单元,该储存单元用于储存一数字形式的默认校调电压值,其特征在于:该公共极校调模组包含: 一数模转换器,电连接于该缩放调整器的储存单元以读取该默认校调电压值,并进行数模转换以得到一相关于该默认校调电压值的模拟电压;及一公共极电压产生器,电连接于该数模转换器以接收该模拟电压,并根据该模拟电压进行电平偏移来产生该公共极电压。 A common electrode calibrated module, a panel driving apparatus is applied, the panel driving device of a liquid crystal panel is electrically connected to a source voltage and provides a gate voltage and a common voltage to the liquid crystal panel , and the panel driving means includes a zoom adjuster, adjusting the scaling having a storage unit, the storage unit for storing a default calibrated voltage values ​​in digital form, characterized in that: the common electrode calibrated module comprising: a digital to analog converter, the storage unit is electrically connected to the scaled adjuster to read the default tone correction voltage value, and the analog conversion to obtain an analog voltage related to the default tone correction voltage; and a common electrode voltage generator, electrically connected to the digital to analog converter to receive the analog voltage, and based on the level shifted analog voltage to generate the common electrode voltage.
CN2011101953311A 2011-07-13 2011-07-13 Liquid crystal display equipment, panel driving device and common calibrating and adjusting module CN102881263A (en)

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