WO2020113646A1 - 显示面板的驱动方法和驱动电路 - Google Patents

显示面板的驱动方法和驱动电路 Download PDF

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Publication number
WO2020113646A1
WO2020113646A1 PCT/CN2018/120831 CN2018120831W WO2020113646A1 WO 2020113646 A1 WO2020113646 A1 WO 2020113646A1 CN 2018120831 W CN2018120831 W CN 2018120831W WO 2020113646 A1 WO2020113646 A1 WO 2020113646A1
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Prior art keywords
digital code
display panel
gamma
charging
charging area
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PCT/CN2018/120831
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English (en)
French (fr)
Inventor
王明良
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HKC Co Ltd
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HKC Co Ltd
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Priority to US17/042,113 priority Critical patent/US11657776B2/en
Publication of WO2020113646A1 publication Critical patent/WO2020113646A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • 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
    • 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
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0238—Improving the black level
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD

Definitions

  • the present application relates to the field of display technology, and in particular to a driving method and driving circuit of a display panel.
  • liquid crystal displays which include a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates, and apply a driving voltage on the two glass substrates to control the rotation direction of the liquid crystal molecules, so as to refract the light of the backlight module to generate a picture.
  • a thin film transistor liquid crystal display includes a liquid crystal panel and a backlight module.
  • the liquid crystal panel includes a color filter substrate (Color Filter Substrate, CF Substrate, also known as a color filter substrate), a thin film transistor array substrate (Thin Film Transistor Substrate, TFT Substrate) and light
  • a transparent electrode exists on the opposite inner side of the substrate.
  • a layer of liquid crystal molecules Liquid Crystal, LC is sandwiched between the two substrates.
  • the present application provides a driving method of a display panel.
  • a driving method of a display panel including:
  • the display panel is divided into multiple charging areas in advance, a unique digital code is determined for each charging area, and the corresponding information of the charging area and the digital code is stored in the timing control chip in advance;
  • the timing control chip Detect the charging area where the pixel to be charged is located, and the timing control chip outputs the corresponding digital code according to the charging area;
  • the gamma chip receives the digital code and generates a gamma voltage corresponding to the digital code according to the input operating voltage to drive the charging work in the charging area corresponding to the digital code.
  • the display panel further includes an operating voltage circuit that generates the operating voltage;
  • the gamma chip includes a reference voltage generating circuit and a gamma voltage generating circuit; the input terminals of the reference voltage generating circuit are respectively coupled to the In the timing control chip and the working voltage circuit, the input terminal of the gamma voltage generating circuit is coupled to the reference voltage generating circuit.
  • the gamma chip receives a digital code, and generates a gamma voltage corresponding to the digital code according to the input operating voltage to drive the charging operation of the charging area corresponding to the digital code.
  • the steps include:
  • the reference voltage generating circuit receives the digital code and generates a reference voltage corresponding to the digital code according to the input operating voltage.
  • the reference voltage generating circuit receives a digital code and generates a reference voltage corresponding to the digital code according to the input operating voltage, including the steps of:
  • the gamma voltage generating circuit receives the reference voltage and generates a gamma voltage corresponding to the digital code to drive the charging operation of the charging area corresponding to the digital code.
  • the gamma voltage generating circuit receives the reference voltage and generates a gamma voltage corresponding to the digital code to drive the charging operation of the charging area corresponding to the digital code, including the steps of:
  • the reference voltage generating circuit receives the digital code, and multiplies the working voltage by the digital code to obtain the reference voltage.
  • the reference voltage generating circuit receives the digital code, and multiplies the working voltage by the digital code to obtain the reference voltage, including the steps of:
  • the gamma voltage generating circuit receives the reference voltage and generates a gamma voltage corresponding to the digital code according to the reference voltage.
  • the gamma chip further includes a gamma partial pressure coefficient memory that stores the gamma partial pressure coefficient;
  • the gamma voltage generating circuit receives the reference voltage and generates a gamma voltage corresponding to the digital code to drive the charging operation of the charging area corresponding to the digital code.
  • the steps include:
  • the gamma voltage generating circuit receives the reference voltage and generates the corresponding gamma voltage according to the corresponding gamma voltage division coefficient to drive the charging operation of the charging area corresponding to the digital encoding.
  • the first side portion and the second side portion of the display panel are provided with a data driving chip adopting a data line bilateral driving method
  • the display panel is only provided with a data driving chip on the first side or the second side, and a data line unilateral driving method is adopted.
  • the farther the charging area is from the data driving chip the greater the corresponding gamma voltage.
  • the display area of the display panel is divided into a plurality of charging areas in sequence according to the number of data lines, and each charging area has a unique digital code.
  • the step of detecting the charging area where the pixel to be charged is located, and the timing control chip outputting the corresponding digital code according to the charging area includes:
  • the counter of the timing control chip counts the number of data lines
  • the counter of the timing control chip counts the number of rows of the data line, it includes the steps of:
  • the timing control chip recognizes the count value of the counter and obtains the corresponding digital code from the memory for output.
  • the count value of the counter is greater than or equal to 100 and less than or equal to 200, a corresponding digital code 2 is obtained, and the digital code 2 corresponds to 1.2 times the standard gamma voltage.
  • the count value X of the counter is greater than or equal to 300 and less than or equal to 400, a corresponding numerical code 4 is obtained, and the numerical code 4 corresponds to 1.4 times the standard gamma voltage.
  • the application also discloses a driving method of the display panel, including:
  • each charging area has a unique digital code, and the corresponding information of the charging area and the digital code is stored in the timing control in advance In the chip
  • the counter of the timing control chip counts the number of data lines
  • the timing control chip recognizes the count value of the counter and obtains the corresponding digital code from the memory for output;
  • the reference voltage generating circuit receives the digital code and generates a reference voltage corresponding to the digital code according to the operating voltage input by the operating voltage circuit;
  • the gamma voltage generating circuit receives the reference voltage and generates the corresponding gamma voltage according to the corresponding gamma voltage division coefficient to drive the charging work of the charging area corresponding to the digital encoding;
  • the present application also discloses a driving circuit for a display panel.
  • the above driving method is used.
  • the driving method includes:
  • the display panel is divided into multiple charging areas in advance, a unique digital code is determined for each charging area, and the corresponding information of the charging area and the digital code is stored in the timing control chip in advance;
  • the timing control chip Detect the charging area where the pixel to be charged is located, and the timing control chip outputs the corresponding digital code according to the charging area;
  • the gamma chip receives the digital code and generates a gamma voltage corresponding to the digital code according to the input operating voltage to drive the charging work in the charging area corresponding to the digital code.
  • the gamma voltage can be adjusted according to the charging difference in the charging area, and the darker charging area can be given a higher actual gamma voltage than the standard gamma voltage, so that the brightness of the corresponding charging area is enhanced, reducing or even eliminating the The brightness difference of the area.
  • this application is to generate different gamma voltages to different charging regions by providing different reference voltages to the gamma voltage generating circuit; wherein, based on different reference voltages, the gamma voltage generating circuit uses the same For circuits that generate different gamma circuits, avoid circuit changes caused by changing the architecture of the gamma voltage generating circuit and upgrade of the production line due to circuit changes, thereby avoiding an increase in generation costs.
  • FIG. 1 is a schematic diagram of a flow of a method for driving a display panel according to an embodiment of the present application
  • FIG. 2 is a specific schematic diagram of a flow of a method for driving a display panel according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a display panel structure according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a display panel driving circuit according to an embodiment of the present application.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • installation should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • an embodiment of the present application discloses a driving method of a display panel 100, including:
  • the display panel 100 is divided into a plurality of charging areas in advance, a unique digital code is determined for each charging area, and the corresponding information of the charging area and the digital code is stored in the timing control in advance Chip 110;
  • S11 Detect the charging area where the pixel to be charged is located, and the timing control chip 110 outputs the corresponding digital code according to the charging area;
  • the gamma chip 120 receives the digital code and generates a gamma voltage corresponding to the digital code according to the input operating voltage to drive the charging work in the charging area corresponding to the digital code.
  • the charging difference between the data line and the near end and the far end of the data driving chip 140 becomes more and more obvious when the data line charges the panel.
  • the charging effect for the far end is poor, and the brightness is low.
  • the charging effect at the near end is better and the brightness is higher.
  • the gamma voltage can be adjusted according to the charging difference in the charging area, and the darker charging area can be given a higher actual gamma voltage than the standard gamma voltage, so that the brightness of the corresponding charging area is enhanced, reducing or even eliminating the The brightness difference of the area.
  • this solution is to provide different reference voltages to the gamma voltage generating circuit 122 to generate different gamma voltages to different charging regions; wherein, based on different reference voltages, the gamma voltage generating circuit 122 is The same circuit generates different gamma voltages, avoiding circuit changes caused by changing the architecture of the gamma voltage generating circuit 122, and production line upgrades caused by circuit changes, thereby avoiding an increase in generation costs.
  • the display panel 100 further includes an operating voltage circuit 130 that generates an operating voltage;
  • the gamma chip 120 includes a reference voltage generating circuit 121 and a gamma voltage generating circuit 122; the input terminals of the reference voltage generating circuit 121 are respectively coupled to The timing control chip 110 and the working voltage circuit 130, the input terminal of the gamma voltage generating circuit 122 is coupled to the reference voltage generating circuit 121;
  • the gamma chip 120 receives the digital code and generates a gamma voltage corresponding to the digital code according to the input operating voltage to drive the charging operation of the charging area corresponding to the digital code.
  • the steps include:
  • the reference voltage generating circuit 121 receives the digital code and generates a reference voltage corresponding to the digital code according to the input operating voltage;
  • the gamma voltage generating circuit 122 receives the reference voltage and generates a gamma voltage corresponding to the digital code to drive the charging operation of the charging area corresponding to the digital code.
  • the reference voltage generating circuit 121 converts the input operating voltage into a reference voltage; the gamma voltage generating circuit 122 outputs the gamma voltage for driving according to the reference voltage, then the reference voltage also serves as the gamma voltage generating circuit 122
  • the reference voltage all the gamma voltages are obtained by dividing the reference voltage, then it is equal to changing the size of the reference voltage, and the gamma voltages of different sizes are obtained. This method is simple and easy, without changing or adding other The device reduces the production difficulty.
  • the reference voltage generating circuit 121 receives the digital code, and multiplies the working voltage by the digital code to obtain the reference voltage;
  • the gamma voltage generating circuit 122 receives the reference voltage and generates a gamma voltage corresponding to the digital code according to the reference voltage.
  • the gamma voltage is obtained by dividing the reference voltage. Now we can amplify the working voltage that generates the reference voltage, then we will get a reference voltage that is larger than the original, so we can get a larger voltage than the original. Gamma voltage compensates for the charging area, so that the brightness of the darker charging area is improved to reduce or even eliminate the bright and dark phenomenon at the near and far ends of the data line.
  • the digital code can be determined according to the actual demand and the brightness difference of the display panel, for example, when the reference voltage is obtained by dividing the voltage, the digital code can be made to be less than or equal to 0, but the farther the charging area is from the data driving chip The greater the gamma voltage, the greater the corresponding digital code.
  • the gamma chip 120 further includes a gamma partial pressure coefficient memory 123 that stores gamma partial pressure coefficients;
  • the gamma voltage generating circuit 122 receives the reference voltage and generates a gamma voltage corresponding to the digital code to drive the charging operation of the charging area corresponding to the digital code.
  • the steps include:
  • the gamma voltage generating circuit 122 receives the reference voltage and generates a corresponding gamma voltage according to the corresponding gamma voltage division coefficient to drive the charging operation of the charging area corresponding to the digital encoding.
  • the gamma partial pressure coefficient memory 123 stores many gamma partial pressure coefficients, and setting it at the gamma chip can reduce the pressure of data transmission across the board.
  • both the first side and the second side of the display panel 100 are provided with a data driving chip 140 using a bilateral driving method of the data line;
  • the display panel 100 is provided with a data driving chip 140 only on the first side or the second side, and adopts a data line unilateral driving method.
  • This solution can be applied to the data line unilateral drive architecture.
  • the technical difficulty caused by the data line bilateral drive mode and the difficulty in producing production can be avoided, and the increase in manufacturing costs can be avoided, and Increased space occupation; it is also possible to use this data line bilaterally driven architecture.
  • the bilaterally driven architecture the pixels are located at the farthest place on both sides of the data driving chip 140, and there is still a phenomenon of dimmed brightness.
  • This method can avoid the occurrence of this phenomenon, and the architecture of bilateral drive of the data line can reduce the number and difficulty of the charging area division, etc., reducing the calculation difficulty and the need for the gamma circuit; when the data drive chip is set on one side, the data line The far-end gamma voltage is the largest; when set on both sides, the gamma voltage in the charging area corresponding to the middle of the data line is the largest.
  • the first side is the upper side of the display panel
  • the second side is the lower side of the display panel
  • the first side portion may be the lower side portion of the display panel
  • the second side portion may be the upper side portion of the display panel
  • the farther away from the data drive chip 140 the darker the brightness; the actual gamma voltage with a greater difference than the standard gamma low voltage is applied.
  • the charging area far from the data drive chip 140 is far away and the loss is large.
  • the charging area far from the data driving chip 140 is near and the loss is small, so there is less voltage compensation. Among them, the brightness difference between each charging area can be better reduced, and even the charging area can be eliminated. Difference in brightness.
  • the display area of the display panel 100 is divided into a plurality of charging areas in sequence according to the number of data lines, and each charging area has a unique digital code.
  • each charging area has a unique digital code.
  • the gamma voltage generating circuit 122 outputs the gamma voltage for driving, one charging area corresponds to only one gamma voltage, which can ensure that the gamma voltage generating circuit generates gamma
  • the horse voltage performs accurate voltage compensation for each charging area, so that the brightness difference between the charging areas of the display panel 100 or the brightness difference between the charging areas.
  • the charging area where the pixel to be charged is located is detected, and the step of the timing control chip 110 outputting the corresponding digital code according to the charging area includes:
  • the counter 111 of the timing control chip 110 counts the number of rows of the data line
  • the timing control chip 110 recognizes the count value of the counter 111, obtains the corresponding digital code from the memory, and outputs it.
  • the timing control chip 110 includes a line counter 111. Since the principle of the line counter 111 is that the count X increases by 1 for each line of charging completed, and the number of lines of the scanning line is different, the distance between the corresponding pixel and the data driving chip 140 is also different.
  • the count X can be divided into four levels , That is, 100, 200, 300, 400; if the line value X is less than or equal to 100, the corresponding digital code 1 (1.1 times the standard gamma voltage); if the line value X is greater than or equal to 100 and less than or equal to 200, Then corresponding to the digital code 2 (1.2 times the standard gamma voltage); if the line value X is greater than or equal to 200 and less than or equal to 300, then the corresponding value code 3 (1.3 times the standard gamma voltage); if the line value When X is greater than or equal to 300 and less than or equal to 400, the corresponding numerical code 4 (1.4 times the standard gamma voltage) is obtained, and so on.
  • the line value X is less than or equal to 100, the corresponding digital code 1 (1.1 times the standard gamma voltage); if the line value X is greater than or equal to 100 and less than or equal to 200, Then corresponding to the digital code 2 (1.2 times the standard gam
  • the digital code can also select proportional coefficient values such as 0.5, 0.55, and 0.6, respectively.
  • the detection and control circuit of the timing control chip 110 recognizes the count value of the counter 111, and transmits the corresponding digital code to the gamma chip 120 according to the count value.
  • the gamma chip 120 generates a gamma voltage according to the digital code.
  • the corresponding charging area is charged to improve the difference in brightness between different charging areas; in addition, each set of digital codes may include and correspond to multiple gamma voltages, which can accurately adjust the gamma voltage of different charging areas.
  • a detection and control circuit is added inside the timing control chip 110, which can recognize different sizes of X of the line counter 111 and make corresponding different outputs.
  • the timing control chip 110 may be a timing control chip; the gamma chip 120 may be a gamma chip; the gamma voltage division coefficient memory 123 may be a gamma voltage division coefficient memory; the operating voltage circuit 130 may be an operating voltage Circuit; data driver chip 140 may be a data driver chip.
  • a driving method of a display panel 100 including:
  • S20 According to the distance from the data driving chip 140, it is divided into a plurality of charging areas in advance according to the number of data lines, each charging area has a unique digital code, and the corresponding information of the charging area and the digital code is stored in advance To the timing control chip 110;
  • the timing control chip 110 recognizes the count value of the counter 111, obtains the corresponding digital code from the memory 111, and outputs it;
  • the reference voltage generating circuit 121 receives the digital code and generates a reference voltage corresponding to the digital code according to the input operating voltage;
  • the gamma voltage generating circuit 122 receives the reference voltage and generates the corresponding gamma voltage according to the corresponding gamma voltage division coefficient to drive the charging operation of the charging area corresponding to the digital encoding.
  • the timing control chip 110 outputs digital codes to the gamma chip 120 according to the corresponding charged area, and the gamma chip 120 further controls the input voltage to generate a corresponding reference voltage.
  • This reference voltage is used as the gamma chip 120 The basis for generating the gamma voltage.
  • the gamma voltage stores a large number of gamma voltage division coefficients. By dividing the voltage in the gamma chip, the gamma voltage of the charging area can be adjusted, and the timing control chip 110 is guaranteed. The reduction of data processing work can save the memory space of the timing control chip 110, thereby reducing the manufacturing cost of the display panel.
  • a driving circuit 200 of a display panel 100 is disclosed, using the above driving method.
  • the technical solution of the present application can be widely used in various display panels, such as Twisted Nematic (TN) display panel, In-Plane Switching (IPS) display panel, Vertical Alignment (VA) ) Display panel, multi-quadrant vertical alignment (Multi-Domain Vertical Alignment, MVA) display panel, of course, it can also be other types of display panels, such as organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panel, both The above scheme is applicable.
  • TN Twisted Nematic
  • IPS In-Plane Switching
  • VA Vertical Alignment
  • MVA multi-quadrant vertical alignment
  • OLED Organic Light-Emitting Diode

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  • Computer Hardware Design (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示面板的驱动方法和驱动电路。驱动方法步骤包括：根据与数据驱动芯片的距离远近，预先将显示面板划分为多个充电区域，给每个充电区域确定唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片中(S10)；检测待充电像素所在的充电区域，时序控制芯片根据充电区域输出对应的数字编码(S11)；伽马芯片接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作(S12)。

Description

显示面板的驱动方法和驱动电路
本申请要求于2018年12月3日提交中国专利局，申请号为CN201811465418.4，申请名称为“一种显示面板的驱动方法和驱动电路”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板的驱动方法和驱动电路。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着科技的发展和进步，液晶显示器由于具备机身薄、省电和辐射低等热点而成为显示器的主流产品，得到了广泛应用。市场上的液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组(backlightmodule)。液晶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，并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
其中，薄膜晶体管液晶显示器(Thin Film Transistor-Liquid Crystal Display，TFT-LCD)由于具有低的功耗、优异的画面品质以及较高的生产良率等性能，已经逐渐占据了显示领域的主导地位。同样，薄膜晶体管液晶显示器包含液晶面板和背光模组，液晶面板包括彩膜基板(Color Filter Substrate，CF Substrate，也称彩色滤光片基板)、薄膜晶体管阵列基板(Thin Film Transistor Substrate，TFTSubstrate)和光罩(Mask)，上述基板的相对内侧存在透明电极。两片基板之间夹一层液晶分子(LiquidCrystal，LC)。
随着液晶电视尺寸越来越大，解析度越来越高，会采用数据线双边驱动的方式来尽量减小这种差异，但是这种方式会对产线生产带来很大难度，同时也会多增加一倍的数据线，造成制造成本的大幅上升。
技术解决方案
本申请的目的在于提供一种显示面板的驱动方法和驱动电路，以解决显示面板显示的不良显示效果
为实现上述目的，本申请提供了一种显示面板的驱动方法。
一种显示面板的驱动方法，包括：
根据与数据驱动芯片的距离远近，预先将显示面板划分为多个充电区域，给每个充电区域确定唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片中；
检测待充电像素所在的充电区域，时序控制芯片根据充电区域输出对应的数字编码；
伽马芯片接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作。
可选的，所述显示面板还包括产生所述工作电压的工作电压电路；所述伽马芯片包括基准电压产生电路和伽马电压产生电路；所述基准电压产生电路的输入端分别耦合于所述时序控制芯片和工作电压电路，所述伽马电压产生电路的输入端耦合于所述基准电压产生电路。
可选的，所述伽马芯片接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作的步骤包括：
基准电压产生电路接收数字编码，并根据输入的工作电压，产生对应数字 编码的基准电压。
可选的，所述基准电压产生电路接收数字编码，并根据输入的工作电压，产生对应数字编码的基准电压后，包括步骤：
伽马电压产生电路接收基准电压，产生对应数字编码的伽马电压以驱动数字编码对应的充电区域的充电工作。
可选的，所述伽马电压产生电路接收基准电压，产生对应数字编码的伽马电压以驱动数字编码对应的充电区域的充电工作后，包括步骤：
所述基准电压产生电路接收所述数字编码，并将工作电压乘以数字编码得到基准电压。
可选的，所述基准电压产生电路接收所述数字编码，并将工作电压乘以数字编码得到基准电压后，包括步骤：
所述伽马电压产生电路接收基准电压，并根据基准电压产生对应数字编码的伽马电压。
可选的，所述伽马芯片还包括存储有伽马分压系数的伽马分压系数存储器；
伽马电压产生电路接收基准电压，产生对应数字编码的伽马电压以驱动数字编码对应的充电区域的充电工作的步骤包括：
伽马电压产生电路接收基准电压，根据对应的伽马分压系数，产生对应的伽马电压，以驱动数字编码对应的充电区域的充电工作。
可选的，所述显示面板的第一侧部和第二侧部均设置有数据驱动芯片采用数据线双边驱动方式；
或者所述显示面板仅第一侧部或者第二侧部设置有数据驱动芯片，采用数据线单边驱动方式。
可选的，距离所述数据驱动芯片越远的充电区域，对应的伽马电压越大。
可选的，所述显示面板的显示区域根据数据线的行数依次划分为多个充电区域，每个充电区域具有一个唯一的数字编码。
可选的，所述检测待充电像素所在的充电区域，时序控制芯片根据充电区域输出对应的数字编码的步骤包括：
时序控制芯片的计数器计数数据线的行数；
可选的，所述时序控制芯片的计数器计数数据线的行数后，包括步骤：
时序控制芯片识别计数器的计数值，从存储器中获取对应的数字编码进行输出。
可选的，若计数器的计数值大于或等于100且小于或等于200时，则相对应得到数字编码2，所述数字编码2对应1.2倍的标准伽马电压。
可选的，若计数器的计数值X大于或等于200且小于或等于300时，则相对应得到数值编码3，所述数值编码3对应1.3倍的标准伽马电压。
可选的，若计数器的计数值X大于或等于300且小于或等于400时，则相对应得到数值编码4，所述数值编码4对应1.4倍的标准伽马电压。
本申请还公开了一种显示面板的驱动方法，包括：
根据与数据驱动芯片的距离远近，预先根据数据线的行数依次划分为多个充电区域，每个充电区域具有一个唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片中；
时序控制芯片的计数器计数数据线的行数；
时序控制芯片识别计数器的计数值，从存储器中获取对应的数字编码进行输出；
基准电压产生电路接收数字编码，并根据工作电压电路输入的工作电压，产生对应数字编码的基准电压；
伽马电压产生电路接收基准电压，根据对应的伽马分压系数，产生对应的伽马电压，以驱动数字编码对应的充电区域的充电工作；
距离所述数据驱动芯片越远的充电区域，对应的伽马电压越大
本申请还公开了一种显示面板的驱动电路，使用上述的驱动方法，所述驱动方法包括：
根据与数据驱动芯片的距离远近，预先将显示面板划分为多个充电区域，给每个充电区域确定唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片中；
检测待充电像素所在的充电区域，时序控制芯片根据充电区域输出对应的数字编码；
伽马芯片接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作。
本方案中，可以根据充电区域的充电差异，进行伽马电压调节，给偏暗的充电区域以较标准伽马电压高的实际伽马电压，使得对应充电区域的亮度增强，减少甚至消除与其他区域的亮度差异。而且，本申请是通过给伽马电压产生电路提供不同的基准电压来实现产生不同的伽马电压给不同的充电区域的；其中，基于不同的基准电压，该伽马电压产生电路是通过同一个电路产生不同的伽马电路的，避免改变伽马电压产生电路的架构而带来的电路变化，以及电路变化带来的产线升级，从而避免了生成成本的增加。
附图说明
所包括的附图用来提供对本申请实施例的的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显 而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请实施例一种显示面板的驱动方法流程的示意图；
图2是本申请实施例一种显示面板的驱动方法流程具体的示意图；
图3是本申请实施例一种显示面板结构的示意图；
图4是本申请实施例一种显示面板驱动电路的示意图。
具体实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安 装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
下面参考附图和可选的实施例中，实施例对本申请作说明。
如图1至图4所示，本申请实施例公布了一种显示面板100的驱动方法，包括：
S10:根据与数据驱动芯片140的距离远近，预先将显示面板100划分为多个充电区域，给每个充电区域确定唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片110中；
S11:检测待充电像素所在的充电区域，时序控制芯片110根据充电区域输出对应的数字编码；
S12:伽马芯片120接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作。
随着液晶电视尺寸越来越大，解析度越来越高，导致在数据线对面板进行充电的时候，数据线距离数据驱动芯片140的近端和远端的充电差异越来越明显，表现为远端充电效果差，亮度较低，近端的部分充电效果较好，亮度较高。本方案中，可以根据充电区域的充电差异，进行伽马电压调节，给偏暗的充电 区域以较标准伽马电压高的实际伽马电压，使得对应充电区域的亮度增强，减少甚至消除与其他区域的亮度差异。而且，本方案是通过给伽马电压产生电路122提供不同的基准电压来实现产生不同的伽马电压给不同的充电区域的；其中，基于不同的基准电压，该伽马电压产生电路122是通过同一个电路产生不同的伽马电压，避免改变伽马电压产生电路122的架构而带来的电路变化，以及电路变化带来的产线升级，从而避免了生成成本的增加。
在一实施例中，，显示面板100还包括产生工作电压的工作电压电路130；伽马芯片120包括基准电压产生电路121和伽马电压产生电路122；基准电压产生电路121的输入端分别耦合于时序控制芯片110和工作电压电路130，伽马电压产生电路122的输入端耦合于基准电压产生电路121；
伽马芯片120接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作的步骤包括：
基准电压产生电路121接收数字编码，并根据输入的工作电压，产生对应数字编码的基准电压；
伽马电压产生电路122接收基准电压，产生对应数字编码的伽马电压以驱动数字编码对应的充电区域的充电工作。
本方案中，基准电压产生电路121将输入的工作电压经转换为基准电压；所述伽马电压产生电路122根据基准电压输出伽马电压进行驱动，那么基准电压同时又作为伽马电压产生电路122的基准电压，所有伽马电压都是将基准电压进行分压得到的，那么等于改变了基准电压的大小，也就得到了不同大小的伽马电压，此方式简单易行，不改动或增加其他器件，减少了生产难度。
在一实施例中，基准电压产生电路121接收数字编码，并将工作电压乘以数字编码得到基准电压；
伽马电压产生电路122接收基准电压，并根据基准电压产生对应数字编码的伽马电压。
本方案中，伽马电压是通过将基准电压进行分压得到的，现在我们可以通过将产生基准电压的工作电压放大，那么将可以得到比原来大的基准电压，如此便可以得到一个比原来大的伽马电压对充电区域进行电压补偿，使的亮度较暗的充电区域亮度得到提升减少甚至消除数据线近端与远端的亮暗现象。
其中，该数字编码可以根据实际需求以及显示面板的亮度差异情况来确定，例如，当该基准电压是通过分压得到是，可以使得数字编码小于等于0，不过距离数据驱动芯片越远的充电区域的伽马电压越大，对应的数字编码也越大。
在一实施例中，伽马芯片120还包括存储有伽马分压系数的伽马分压系数存储器123；
伽马电压产生电路122接收基准电压，产生对应数字编码的伽马电压以驱动数字编码对应的充电区域的充电工作的步骤包括：
伽马电压产生电路122接收基准电压，根据对应的伽马分压系数，产生对应的伽马电压，以驱动数字编码对应的充电区域的充电工作。
本方案中，根据伽马分压系数不同，进行不同大小的分压得到对应数字编码，以及亮度需求下的伽马电压，其中，其他条件相同情况下，越远离数据驱动芯片的充电区域，对应的伽马电压越大。该伽马分压系数存储器123存储的伽马分压系数较多，将其设置在伽马芯片处，可以减少跨板数据传输的压力。
在一实施例中，显示面板100的第一侧部和第二侧部均设置有数据驱动芯片140采用数据线双边驱动方式；
或者显示面板100仅第一侧部或者第二侧部设置有数据驱动芯片140，采用数据线单边驱动方式。
本方案中可以应用于数据线单边驱动架构，如此，便可以避免数据线双边驱动方式带来的技术难度的提升以及对产生生产带来的难度，并避免带来了制造成本的提升，以及空间占用的增加；而采用该数据线双边你驱动的架构也是可以的，双边驱动的架构中，像素位于两侧数据驱动芯片140最远的地方，仍然存在亮度偏暗的现象，使用本申请的方法，可以避免该现象的发生，且采用数据线双边驱动的架构，可以减少充电区域划分的数量和难度等，减少对计算难度以及伽马电路的需求；单侧设置数据驱动芯片时，数据线的远端伽马电压最大；双侧设置时，数据线的中部对应的充电区域的伽马电压最大。
当然，如显示面板为例，以观看者为中心，第一侧部是显示面板的上侧部，第二侧部是显示面板的下侧部；另外，本领域技术人员可以根据自身需求设置，第一侧部可以为显示面板的下侧部，第二侧部可以为显示面板的上侧部。
在一实施例中，距离数据驱动芯片140越远的充电区域，对应的伽马电压越大。
本方案中，充电区域距数据驱动芯片140距离越远，由于充电区域的电阻所述距离的增大而增大，数据驱动芯片140所产生的标准伽马电压损耗越大，进而导致充电区域随着距离数据驱动芯片140的越远亮度越暗；施加一个比标准伽马低电压更大差值的实际伽马电压，如此，距离数据驱动芯片140远的充电区域远且损耗大的可以得到多一些的电压补偿，距离数据驱动芯片140远的充电区域近且损耗小的则少一些电压补偿，在这其中，便可以较好的减少各个充电区域之间的亮度差异，甚至消除各个充电区域之间的亮度差异。或者说与标准伽马电压的差值越大，即最靠近数据驱动芯片140的充电区域的伽马电压跟标准的伽马电压相当，而为了抵消伽马电压的损耗，距离越远的充电区域对应的伽马电压越大，增大的幅度与损耗的程度相当。
在一实施例中，显示面板100的显示区域根据数据线的行数依次划分为多个充电区域，每个充电区域具有一个唯一的数字编码。
本方案中，每个充电区域具有一个唯一数字编码，在伽马电压产生电路122输出伽马电压进行驱动的时候，一个充电区域只对应一个伽马电压，这样可以保证伽马电压产生电路产生伽马电压对每个充电区域进行准确的电压补偿，使的显示面板100各个充电区域之间亮度差异或者各个充电区域之间的亮度差异。
在一实施例中，检测待充电像素所在的充电区域，时序控制芯片110根据充电区域输出对应的数字编码的步骤包括：
时序控制芯片110的计数器111计数数据线的行数；
时序控制芯片110识别计数器111的计数值，从存储器中获取对应的数字编码进行输出。
本方案中，时序控制芯片110包括行计数器111，由于行计数器111的原理是每完成充电一行计数X加1，而且，扫描线的行数不同，对应的像素距离数据驱动芯片140的距离也不同，这样就可以通过该行数来表示像素远离数据驱动芯片140的距离；如此，我们就可以根据需求设计计数X为不同值时的控制方式，具体的，比如，可以将计数X分为四阶，即100、200、300、400；若行数值X小于或等于100时，相对应得数字编码1(1.1倍标准伽马电压)；若行数值X大于或等于100且小于或等于200时，则相对应得到数字编码2(1.2倍标准伽马电压)；若行数值X大于或等于200且小于或等于300时，则相对应得到数值编码3(1.3倍标准伽马电压)；若行数值X大于或等于300且小于或等于400时，则相对应得到数值编码4(1.4倍标准伽马电压)，如此类推，相对应得也有不同大小的4组数字编码，每组数字编码对应伽马电压也是依次 增大的；当然，例如当基准电压等于工作电压乘以数字编码时，该数字编码也可以分别选择0.5、0.55、0.6之类的比例系数值。
该时序控制芯片110的侦测和控制电路识行计数器111的计数值，并根据计数值传送对应的数字编码给伽马芯片120，伽马芯片120根根据数字编码产生伽马电压对于数字编码所述对应的充电区域进行充电，改善不同的充电区域亮度差异；另外，每一组数字编码里可包括且对应多个伽马电压，可以对远近不同的充电区域精准的伽马电压调整。
另外，在时序控制芯片110内部增加一个侦测和控制电路，能识别行计数器111的X的不同大小做相应的不同输出即可。
在一实施例中，时序控制芯片110可以是时序控制芯片；伽马芯片120可以是伽马芯片；伽马分压系数存储器123可以是伽马分压系数存储器；工作电压电路130可以是工作电压电路；数据驱动芯片140可以是数据驱动芯片.
如图2所示，作为本申请的另一实施例，公开了一种显示面板100的驱动方法，包括：
S20:根据与数据驱动芯片140的距离远近，预先根据数据线的行数依次划分为多个充电区域，每个充电区域具有一个唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片110中；
S21:时序控制芯片110的计数器111计数数据线的行数；
S22:时序控制芯片110识别计数器111的计数值，从存储器111中获取对应的数字编码进行输出；
S23:基准电压产生电路121接收数字编码，并根据输入的工作电压，产生对应数字编码的基准电压；
S24:伽马电压产生电路122接收基准电压，根据对应的伽马分压系数，产 生对应的伽马电压，以驱动数字编码对应的充电区域的充电工作。
本方案驱动电路内，通过时序控制芯片110根据对应充电的区域输出数字编码到伽马芯片120，伽马芯片120进而控制输入工作的电压产生对应的基准电压，此基准电压作为伽马芯片120的产生伽马电压的基础，伽马电压储存大量的伽马电压分压系数，通过在伽马芯片里面进行分压处理，在可以调节充电区域的伽马电压的同时，保证了时序控制芯片110的处理数据的工作减少，可以节省了时序控制芯片110的内存空间，进而减少了显示面板的制作成本。
在一实施例中，如图1至图4所示，公开了一种显示面板100的驱动电路200，使用上述驱动方法。
需要说明的是，本方案中涉及到的各步骤的限定，在不影响具体方案实施的前提下，并不认定为对步骤先后顺序做出限定，写在前面的步骤可以是在先执行的，也可以是在后执行的，甚至也可以是同时执行的，只要能实施本方案，都应当视为属于本申请的保护范围。
本申请的技术方案可以广泛用于各种显示面板，如扭曲向列型(Twisted Nematic，TN)显示面板、平面转换型(In-Plane Switching，IPS)显示面板、垂直配向型(Vertical Alignment，VA)显示面板、多象限垂直配向型(Multi-Domain Vertical Alignment，MVA)显示面板，当然，也可以是其他类型的显示面板，如有机发光二极管(Organic Light-Emitting Diode，OLED)显示面板，均可适用上述方案。
以上内容是结合具体的可选的实施方式对本申请所作的详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (20)

  1. 一种显示面板的驱动方法，包括步骤：
    根据与数据驱动芯片的距离远近，预先将显示面板划分为多个充电区域，给每个充电区域确定唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片中；
    检测待充电像素所在的充电区域，时序控制芯片根据充电区域输出对应的数字编码；以及
    伽马芯片接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作。
  2. 如权利要求1所述一种显示面板的驱动方法，其中，所述显示面板还包括产生所述工作电压的工作电压电路；所述伽马芯片包括基准电压产生电路和伽马电压产生电路；所述基准电压产生电路的输入端分别耦合于所述时序控制芯片和工作电压电路，所述伽马电压产生电路的输入端耦合于所述基准电压产生电路。
  3. 如权利要求2所述一种显示面板的驱动方法，其中，所述伽马芯片接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作的步骤包括：
    基准电压产生电路接收数字编码，并根据输入的工作电压，产生对应数字编码的基准电压。
  4. 如权利要求3所述一种显示面板的驱动方法，其中，所述基准电压产生电路接收数字编码，并根据输入的工作电压，产生对应数字编码的基准电压后，包括步骤：
    伽马电压产生电路接收基准电压，产生对应数字编码的伽马电压以驱动数 字编码对应的充电区域的充电工作。
  5. 如权利要求4所述一种显示面板的驱动方法，其中，所述伽马电压产生电路接收基准电压，产生对应数字编码的伽马电压以驱动数字编码对应的充电区域的充电工作后，包括步骤：
    所述基准电压产生电路接收所述数字编码，并将工作电压乘以数字编码得到基准电压。
  6. 如权利要求5所述一种显示面板的驱动方法，其中，所述基准电压产生电路接收所述数字编码，并将工作电压乘以数字编码得到基准电压后，步骤包括：
    所述伽马电压产生电路接收基准电压，并根据基准电压产生对应数字编码的伽马电压。
  7. 如权利要求4所述一种显示面板的驱动方法，其中，所述伽马芯片还包括存储有伽马分压系数的伽马分压系数存储器。
  8. 如权利要求7所述一种显示面板的驱动方法，其中，伽马电压产生电路接收基准电压，产生对应数字编码的伽马电压以驱动数字编码对应的充电区域的充电工作的步骤包括：
    伽马电压产生电路接收基准电压，根据对应的伽马分压系数，产生对应的伽马电压，以驱动数字编码对应的充电区域的充电工作。
  9. 如权利要求1所述一种显示面板的驱动方法，其中，所述显示面板的第一侧部和第二侧部均设置有数据驱动芯片采用数据线双边驱动方式。
  10. 如权利要求1所述一种显示面板的驱动方法，其中，所述显示面板仅第一侧部或者第二侧部设置有数据驱动芯片，采用数据线单边驱动方式。
  11. 如权利要求1所述一种显示面板的驱动方法，其中，距离所述数据驱 动芯片越远的充电区域，对应的伽马电压越大。
  12. 如权利要求1所述一种显示面板的驱动方法，其中，所述显示面板的显示区域根据数据线的行数依次划分为多个充电区域。
  13. 如权利要求12所述一种显示面板的驱动方法，其中，每个所述充电区域具有一个唯一的数字编码。
  14. 如权利要求1所述一种显示面板的驱动方法，其中，所述检测待充电像素所在的充电区域，时序控制芯片根据充电区域输出对应的数字编码的步骤包括：
    时序控制芯片的计数器计数数据线的行数。
  15. 如权利要求14所述一种显示面板的驱动方法，其中，所述时序控制芯片的计数器计数数据线的行数后，包括步骤：
    时序控制芯片识别计数器的计数值，从存储器中获取对应的数字编码进行输出。
  16. 如权利要求14所述一种显示面板的驱动方法，其中，若计数器的计数值大于或等于100且小于或等于200时，则相对应得到数字编码2，所述数字编码2对应1.2倍的标准伽马电压。
  17. 如权利要求14所述一种显示面板的驱动方法，其中，若计数器的计数值X大于或等于200且小于或等于300时，则相对应得到数值编码3，所述数值编码3对应1.3倍的标准伽马电压。
  18. 如权利要求14所述一种显示面板的驱动方法，其中，若计数器的计数值X大于或等于300且小于或等于400时，则相对应得到数值编码4，所述数值编码4对应1.4倍的标准伽马电压。
  19. 一种显示面板的驱动方法，包括步骤：
    根据与数据驱动芯片的距离远近，预先根据数据线的行数依次划分为多个充电区域，每个充电区域具有一个唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片中；
    时序控制芯片的计数器计数数据线的行数；
    时序控制芯片识别计数器的计数值，从存储器中获取对应的数字编码进行输出；
    基准电压产生电路接收数字编码，并根据工作电压电路输入的工作电压，产生对应数字编码的基准电压；以及
    伽马电压产生电路接收基准电压，根据对应的伽马分压系数，产生对应的伽马电压，以驱动数字编码对应的充电区域的充电工作；
    其中，距离所述数据驱动芯片越远的充电区域，对应的伽马电压越大。
  20. 一种显示面板的驱动电路，使用所述驱动方法，所述驱动方法包括：
    根据与数据驱动芯片的距离远近，预先将显示面板划分为多个充电区域，给每个充电区域确定唯一的数字编码，并把充电区域和数字编码的对应信息预先存储到时序控制芯片中；
    检测待充电像素所在的充电区域，时序控制芯片根据充电区域输出对应的数字编码；以及
    伽马芯片接收数字编码，并根据输入的工作电压，产生对应数字编码的伽马电压，以驱动数字编码对应的充电区域的充电工作。
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