WO2015066938A1 - 珈玛电压调整装置的调整方法 - Google Patents

珈玛电压调整装置的调整方法 Download PDF

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WO2015066938A1
WO2015066938A1 PCT/CN2013/086995 CN2013086995W WO2015066938A1 WO 2015066938 A1 WO2015066938 A1 WO 2015066938A1 CN 2013086995 W CN2013086995 W CN 2013086995W WO 2015066938 A1 WO2015066938 A1 WO 2015066938A1
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Prior art keywords
sets
gamma
voltages
voltage
gamma voltage
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PCT/CN2013/086995
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English (en)
French (fr)
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郭东胜
戴叶
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深圳市华星光电技术有限公司
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Priority to DE112013005374.8T priority Critical patent/DE112013005374T5/de
Priority to US14/233,158 priority patent/US9305502B2/en
Publication of WO2015066938A1 publication Critical patent/WO2015066938A1/zh

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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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Definitions

  • the present invention relates to an adjustment method, and more particularly to an adjustment method of a gamma voltage adjustment device.
  • FIG. 1 is a schematic diagram of adjusting the gamma voltage by hardware in the prior art
  • FIG. 2 is a diagram showing the relationship between the gamma voltage and the transmittance of the prior art.
  • N Take N as 256 gray scale as an example, first assembled by a printed circuit board 10 (Printed Circuit Board Assembly; A 2N group gamma voltage is generated on the PCBA), which includes N sets of negative polarity gamma voltages GMA1-GMAN and N sets of positive polarity gamma voltages GMAN+1-GMA2N, and the N sets of negative polarity gamma voltages GMA1-GMAN and The N sets of positive polarity gamma voltages GMAN+1-GMA2N are input to a data chip 12, and the data chip 12 generates 256 sets of negative polarity driving voltages V255-V0 according to the N sets of negative polarity gamma voltages GMA1-GMAN, and according to The N group of positive polarity gamma voltage GMAN+1-GMA2N generates 256 sets of positive polarity driving voltage V0'-V255', the negative polarity driving voltage V255-V0 and the positive polarity driving voltage V0'-V
  • the N sets of negative gamma voltages GMA1-GMAN and the N sets of positive gamma voltages GMAN+1-GMA2N appear in pairs, that is, each ash has two gamma voltages (one negative polarity).
  • the voltage of Ma and a positive gamma voltage are controlled to adjust the gray scale close to the standard gamma curve and to ensure that the N sets of negative gamma voltages GMA1-GMAN and N sets of positive gamma voltages GMAN+1-GMA2N in Figure 2 are relative The symmetry of the common voltage VCOM. Adjusting the gray scale close to the standard gamma curve can be achieved by adjusting the data chip 12.
  • the present invention provides a method for adjusting a gamma voltage adjusting device, wherein the gamma voltage adjusting device is configured to provide a liquid crystal panel to display N sets of gray scales and includes a printed circuit board assembly and a gamma Voltage trimming unit.
  • the method for adjusting the gamma voltage adjusting device comprises: the printed circuit board assembly includes a plurality of gamma integrated circuits to generate an N+2 group gamma voltage, and the N+2 group gamma voltage includes two sets of first poles The gamma voltage and the N sets of second polarity gamma voltages respectively corresponding to a highest gray level and a lowest gray level, the N sets of second polarity gamma voltage Corresponding to the N sets of gray scales respectively; the 2 sets of first polarity gamma voltages and the N sets of second polarity gamma voltages are input to the gamma voltage trimming unit; and the gamma voltage trimming The unit generates M groups or N sets of first polarity driving voltages according to the two sets of first polarity gamma voltages, and generates N sets of second polarity driving voltages according to the N sets of second polarity gamma voltages, M Less than or equal to N.
  • the gamma voltage trimming unit includes a plurality of resistors, and the gamma voltage trimming unit performs voltage division by the resistors to generate the first polarity driving voltage and The second polarity drives a voltage.
  • the gamma voltage trimming unit directly generates the N sets of first polarity driving voltages according to the two sets of first polarity gamma voltages to The set of second polarity drive voltages is symmetrical.
  • the gamma voltage trimming unit In the method for adjusting the gamma voltage adjusting device of the present invention, the gamma voltage trimming unit generates M sets of first polarity driving voltages according to the two sets of first polarity gamma voltages, and then is controlled by a timing controller.
  • the M sets of first polarity driving voltages are adjusted to N sets of first order driving voltages that are symmetric with the N sets of second order driving voltages.
  • the present invention provides a method for adjusting a gamma voltage adjusting device, wherein the gamma voltage adjusting device is configured to provide a liquid crystal panel to display N sets of gray scales and includes a printed circuit board assembly and a gamma Voltage trimming unit.
  • the method for adjusting the gamma voltage adjusting device comprises: assembling the printed circuit board to generate an N+2 group gamma voltage, wherein the N+2 group gamma voltage comprises two sets of negative gamma voltages and N sets of positive polarity ⁇ The voltage of the two sets of negative gamma voltages respectively corresponding to a highest gray level and a lowest gray level, wherein the N sets of positive polarity gamma voltages respectively correspond to the N sets of gray levels; the 2 sets of negative polarity a gamma voltage and the N sets of positive gamma voltages are input to the gamma voltage trimming unit; and the gamma voltage trimming unit generates M or N sets of negative polarity driving according to the 2 sets of negative gamma voltages Voltage, and generating N sets of positive polarity driving voltages according to the N sets of positive polarity gamma voltages, M being less than or equal to N.
  • the gamma voltage trimming unit includes a plurality of resistors, and the gamma voltage trimming unit performs voltage division by the resistors to generate the negative polarity driving voltage and the Positive polarity drive voltage.
  • the gamma voltage trimming unit directly generates the N sets of negative polarity driving voltages according to the two sets of negative polarity gamma voltages to drive with the N sets of positive polarity drivers.
  • the voltage is symmetrical.
  • the gamma voltage trimming unit In the method for adjusting the gamma voltage adjusting device of the present invention, the gamma voltage trimming unit generates M sets of negative polarity driving voltages according to the two sets of negative gamma gamma voltages, and the M group is further controlled by a timing controller.
  • the negative polarity driving voltage is adjusted to N sets of negative-level driving voltages symmetrical with the N sets of positive-level driving voltages.
  • the present invention provides a method for adjusting a gamma voltage adjusting device, wherein the gamma voltage adjusting device is configured to provide a liquid crystal panel to display N sets of gray scales and includes a printed circuit board assembly and a gamma Voltage trimming unit.
  • the method for adjusting the gamma voltage adjusting device comprises: assembling the printed circuit board to generate an N+2 group gamma voltage, wherein the N+2 group gamma voltage comprises two sets of positive gamma voltages and N sets of negative polarity ⁇ a voltage of the two sets of positive gamma voltages corresponding to a highest gray level and a lowest gray level, respectively, wherein the N sets of negative polarity gamma voltages respectively correspond to the N sets of gray levels; the 2 sets of positive polarity a gamma voltage and the N sets of negative polarity gamma voltages are input to the gamma voltage trimming unit; and the gamma voltage trimming unit generates M groups or N sets of positive polarity driving according to the two sets of positive polarity gamma voltages a voltage, and generating N sets of negative polarity driving voltages according to the N sets of negative polarity gamma voltages, M being less than or equal to N.
  • the gamma voltage trimming unit includes a plurality of resistors, and the gamma voltage trimming unit performs voltage division by the resistors to generate the negative polarity driving voltage and the Positive polarity drive voltage.
  • the gamma voltage trimming unit directly generates the N sets of positive polarity driving voltages according to the two sets of positive polarity gamma voltages to drive with the N sets of negative polarity drivers.
  • the voltage is symmetrical.
  • the gamma voltage trimming unit In the method for adjusting the gamma voltage adjusting device of the present invention, the gamma voltage trimming unit generates M sets of positive polarity driving voltages according to the two sets of positive polarity gamma voltages, and the M group is further controlled by a timing controller.
  • the positive polarity driving voltage is adjusted to N sets of positive-level driving voltages that are symmetric with the N sets of negative-level driving voltages.
  • the adjustment method of the gamma voltage adjusting device of the present invention reduces the voltage of the 2N group gamma required in the prior art to the N+2 group, thereby reducing the assembly of the gamma integrated circuit on the printed circuit board. Quantity to save costs.
  • FIG. 1 is a schematic diagram of adjusting a gamma voltage by hardware in the prior art
  • FIG. 2 is a diagram showing relationship between gamma voltage and transmittance in the prior art
  • FIG. 3 is a block diagram of a gamma voltage adjusting device, a liquid crystal panel, and a timing controller according to an embodiment of the present invention
  • FIG. 4 is a gamma voltage adjusting device according to a first embodiment of the present invention.
  • FIG. 5 is a flow chart showing a method of adjusting a gamma voltage adjusting device according to a first embodiment of the present invention
  • FIG. 6 is a graph showing relationship between two sets of negative polarity gamma voltages and N sets of positive polarity gamma voltages and transmittances according to the first embodiment of the present invention
  • Figure 7 is a gamma voltage adjusting device according to a second embodiment of the present invention.
  • FIG. 8 is a flow chart showing a method of adjusting a gamma voltage adjusting device according to a second embodiment of the present invention.
  • FIG. 9 is a graph showing relationship between two sets of positive polarity gamma voltages and N sets of negative polarity gamma voltages and transmittances according to a second embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a gamma voltage adjusting device 3, a liquid crystal panel 34, and a timing controller 36 according to an embodiment of the present invention
  • FIG. 4 is a gamma according to a first embodiment of the present invention.
  • Voltage adjusting device 3 FIG. 5 is a flow chart of a method of adjusting the voltage adjusting device 3 according to the first embodiment of the present invention.
  • the gamma voltage adjusting device 3 is configured to provide a liquid crystal panel 34 to display N sets of gray scales.
  • the gamma voltage adjusting device 3 includes a printed circuit board assembly 30 and a gamma voltage trimming unit 32.
  • the gamma voltage trimming unit 32 is, for example, a data chip.
  • the gamma voltage trimming unit 32 includes a plurality of resistors R.
  • step S50 the printed circuit board assembly 30 generates N+2 sets of gamma voltages, and the N+2 sets of gamma voltages include two sets of negative polarity gamma voltages GMA1-GMA2 and N sets of positive polarity gamma voltages GMAN. +1-GMA2N, wherein the two sets of negative polarity gamma voltages GMA1-GMA2 respectively correspond to a highest gray level and a lowest gray level, and the N sets of positive polarity gamma voltages GMAN+1-GMA2N correspond to the N sets of gray levels.
  • the printed circuit board assembly 30 includes a plurality of gamma integrated circuits (not shown) to generate the N+2 set of gamma voltages. Since the present invention only requires the generation of N+2 sets of gamma voltages, the number of gamma integrated circuits (not shown) can be significantly reduced as compared to the prior art of FIG. 1, thereby saving the cost of the printed circuit board assembly 30.
  • step S52 the two sets of negative polarity gamma voltages GMA1-GMA2 and the N sets of positive polarity gamma voltages GMAN+1-GMA2N are input to the gamma voltage trimming unit 32.
  • step S54 the gamma voltage trimming unit 32 generates M sets of negative polarity driving voltages or N sets of negative polarity driving voltages according to the two sets of negative polarity gamma voltages GMA1-GMA2, and according to the N sets of positive polarity ⁇ The voltage GMAN+1-GMA2N generates N sets of positive polarity driving voltages, and M is less than or equal to N. More specifically, the gamma voltage trimming unit 32 performs voltage division by a resistor R to generate the above-described negative polarity driving voltage and positive polarity driving voltage.
  • the gamma voltage trimming unit 32 directly generates N sets of negative polarity driving voltages according to the two sets of negative polarity gamma voltages GMA1-GMA2 to be symmetric with the N sets of positive polarity driving voltages.
  • the gamma voltage trimming unit 32 generates M sets of negative polarity driving voltages according to the two sets of negative polarity gamma voltages GMA1-GMA2, and then is electrically coupled to the gamma voltage trimming.
  • the timing controller 36 of the unit 32 adjusts the M sets of negative polarity driving voltages to N sets of negative-level driving voltages that are symmetric with the N sets of positive-level driving voltages.
  • FIG. 6 is a graph showing the relationship between two sets of negative polarity gamma voltages GMA1-GMA2 and N sets of positive polarity gamma voltages GMAN+1-GMA2N according to the first embodiment of the present invention.
  • FIG. 7 is a gamma voltage adjusting device 7 according to a second embodiment of the present invention
  • FIG. 8 is a second embodiment of the gamma voltage adjusting device 7 according to the present invention.
  • the gamma voltage adjusting device 7 is equivalent to the gamma voltage adjusting device 3 of FIG. 3 for providing the liquid crystal panel 34 to display N sets of gray scales.
  • the gamma voltage adjusting device 7 includes a printed circuit board assembly 70 and a gamma voltage trimming unit 72.
  • the gamma voltage trimming unit 72 is, for example, a data chip.
  • the gamma voltage trimming unit 72 includes a plurality of resistors R.
  • step S80 the printed circuit board assembly 70 generates N+2 sets of gamma voltages, and the N+2 sets of gamma voltages include two sets of positive polarity gamma voltages GMAN+1-GMAN+2 and N sets of negative polarity.
  • the gamma voltage GMA1-GMAN wherein the two sets of positive polarity gamma voltages GMAN+1-GMAN+2 correspond to a highest gray level and a lowest gray level, respectively, and the N sets of negative polarity gamma voltages GMA1-GMAN respectively Corresponding to the N sets of gray levels.
  • the second embodiment of the present invention only needs to generate two sets of positive gamma voltages GMAN+1-GMAN+2, and only needs to generate N+2 sets of gamma voltage in total, which is the existing one of FIG.
  • the technology can significantly reduce the number of gamma integrated circuits (not shown), thereby saving the cost of the printed circuit board assembly 70.
  • step S82 the two sets of positive polarity gamma voltages GMAN+1-GMAN+2 and the N sets of negative polarity gamma voltages GMA1-GMAN are input to the gamma voltage trimming unit 72.
  • step S84 the gamma voltage trimming unit 72 generates M sets of positive polarity driving voltages or N sets of positive polarity driving voltages according to the two sets of positive polarity gamma voltages GMAN+1-GMAN+2, and according to the N
  • the group of negative gamma voltages produces N sets of negative polarity driving voltages, and M is less than or equal to N.
  • the gamma voltage trimming unit 72 performs voltage division by the resistor R to generate the above-described negative polarity driving voltage and positive polarity driving voltage.
  • the gamma voltage trimming unit 72 directly generates N sets of positive polarity driving voltages according to the two sets of positive polarity gamma voltages GMAN+1-GMAN+2 to be symmetric with the N sets of negative polarity driving voltages.
  • the gamma voltage trimming unit 72 generates M sets of positive polarity driving voltages according to the two sets of positive polarity gamma voltages GMAN+1-GMAN+2, and is further controlled by the timing controller 36 of FIG.
  • the M group positive polarity driving voltage is adjusted to N sets of positive driving voltages that are symmetric with the N sets of negative driving voltages.
  • Fig. 9 is a graph showing the relationship between two sets of positive polarity gamma voltages GMAN+1-GMAN+2 and N sets of negative polarity gamma voltages GMA1-GMAN and transmittance according to a second embodiment of the present invention.
  • the adjustment method of the gamma voltage adjusting device of the present invention reduces the number of gamma integrated circuits on the printed circuit board assembly to reduce the cost by reducing the 2N group gamma voltage required in the prior art to the N+2 group.

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Abstract

提供了一种珈玛电压调整装置（3）的调整方法。该珈玛电压调整装置（3）用于提供一液晶面板（34）显示N组灰阶且包括一印刷电路板装配（30）以及一珈玛电压微调单元（32）。该珈玛电压调整装置（3）的调整方法包括：印刷电路板装配（30）产生N+2组珈玛电压；N+2组珈玛电压输入到珈玛电压微调单元（32）；以及珈玛电压微调单元（32）根据N+2组珈玛电压产生相互对称的负极性驱动电压与正极性驱动电压。该方法通过将现有技术中所需的2N组珈玛电压降低为N+2组，减少印刷电路板装配（30）上珈玛集成电路的数量以节省成本。

Description

珈玛电压调整装置的调整方法 技术领域
本发明涉及调整方法，特别是涉及一种珈玛电压调整装置的调整方法。
 背景技术
于液晶显示装置中，珈玛(gamma)电压的调整主要有两种方式，第一种方式是通过硬件调整电压，第二种方式是通过软件，例如时序控制器(Timing Controller；T-con)调整数据。请参阅图1及图2，图1为现有技术中通过硬件调整珈玛电压的示意图，图2为现有技术中珈玛电压与穿透率(transmittance)的关系图。以N为256灰阶为例，首先由一印刷电路板装配10(Printed Circuit Board Assembly; PCBA)上产生2N组珈玛电压，其包括N组负极性珈玛电压GMA1-GMAN及N组正极性珈玛电压GMAN+1-GMA2N，所述N组负极性珈玛电压GMA1-GMAN以及所述N组正极性珈玛电压GMAN+1-GMA2N输入到一数据芯片12，数据芯片12根据所述N组负极性珈玛电压GMA1-GMAN产生256组负极性驱动电压V255-V0，并根据所述N组正极性珈玛电压GMAN+1-GMA2N产生256组正极性驱动电压V0’-V255’，负极性驱动电压V255-V0及正极性驱动电压V0’-V255’用于驱动画素显示256灰阶之其中一者。
从图2可知，N组负极性珈玛电压GMA1-GMAN及N组正极性珈玛电压GMAN+1-GMA2N为成对出现，亦即每一个灰阶由两个珈玛电压(一个负极性珈玛电压及一个正极性珈玛电压)控制，藉以调整灰阶接近标准伽玛曲线及保证图2中N组负极性珈玛电压GMA1-GMAN及N组正极性珈玛电压GMAN+1-GMA2N相对于共同电压VCOM的对称性。调整灰阶接近标准伽玛曲线可以通过调整数据芯片12来达成。保证N组负极性珈玛电压GMA1-GMAN及N组正极性珈玛电压GMAN+1-GMA2N相对于共同电压VCOM的对称性则需要通过印刷电路板装配10产生2N组珈玛电压达成。由于印刷电路板装配10是通过珈玛集成电路(Gamma Integrated Circuit；Gamma IC)产生2N组珈玛电压，因此产生2N组珈玛电压所需使用的珈玛集成电路是成本上的负担。
因此需要对现有技术中无法降低珈玛集成电路的数量导致成本无法降低的问题提出解决方法。
 技术问题
本发明的目的在于提供一种珈玛电压调整装置的调整方法，其能降低珈玛集成电路的数量以降低成本。
 技术解决方案
为解决上述问题，本发明提供的一种珈玛电压调整装置的调整方法中，所述珈玛电压调整装置用于提供一液晶面板显示N组灰阶且包括一印刷电路板装配以及一珈玛电压微调单元。所述珈玛电压调整装置的调整方法包括：所述印刷电路板装配包括若干个珈玛集成电路以产生N+2组珈玛电压，所述N+2组珈玛电压包括2组第一极性珈玛电压以及N组第二极性珈玛电压，所述2组第一极性珈玛电压分别对应至一最高灰阶以及一最低灰阶，所述N组第二极性珈玛电压分别对应至所述N组灰阶；所述2组第一极性珈玛电压及所述N组第二极性珈玛电压输入到所述珈玛电压微调单元；以及所述珈玛电压微调单元根据所述2组第一极性珈玛电压产生M组或N组第一极性驱动电压，并根据所述N组第二极性珈玛电压产生N组第二极性驱动电压，M小于或等于N。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元包括若干个电阻，所述珈玛电压微调单元通过这些电阻进行分压以产生所述第一极性驱动电压及所述第二极性驱动电压。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元根据所述2组第一极性珈玛电压直接产生所述N组第一极性驱动电压以与所述N组第二极性驱动电压对称。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元根据所述2组第一极性珈玛电压产生M组第一极性驱动电压，再由一时序控制器将所述M组第一极性驱动电压调整为与所述N组第二级性驱动电压对称的N组第一级性驱动电压。
为解决上述问题，本发明提供的一种珈玛电压调整装置的调整方法中，所述珈玛电压调整装置用于提供一液晶面板显示N组灰阶且包括一印刷电路板装配以及一珈玛电压微调单元。所述珈玛电压调整装置的调整方法包括：所述印刷电路板装配产生N+2组珈玛电压，所述N+2组珈玛电压包括2组负极性珈玛电压以及N组正极性珈玛电压，所述2组负极性珈玛电压分别对应至一最高灰阶以及一最低灰阶，所述N组正极性珈玛电压分别对应至所述N组灰阶；所述2组负极性珈玛电压及所述N组正极性珈玛电压输入到所述珈玛电压微调单元；以及所述珈玛电压微调单元根据所述2组负极性珈玛电压产生M组或N组负极性驱动电压，并根据所述N组正极性珈玛电压产生N组正极性驱动电压，M小于或等于N。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元包括若干个电阻，所述珈玛电压微调单元通过这些电阻进行分压以产生所述负极性驱动电压及所述正极性驱动电压。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元根据所述2组负极性珈玛电压直接产生所述N组负极性驱动电压以与所述N组正极性驱动电压对称。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元根据所述2组负极性珈玛电压产生M组负极性驱动电压，再由一时序控制器将所述M组负极性驱动电压调整为与所述N组正级性驱动电压对称的N组负级性驱动电压。
为解决上述问题，本发明提供的一种珈玛电压调整装置的调整方法中，所述珈玛电压调整装置用于提供一液晶面板显示N组灰阶且包括一印刷电路板装配以及一珈玛电压微调单元。所述珈玛电压调整装置的调整方法包括：所述印刷电路板装配产生N+2组珈玛电压，所述N+2组珈玛电压包括2组正极性珈玛电压以及N组负极性珈玛电压，所述2组正极性珈玛电压分别对应至一最高灰阶以及一最低灰阶，所述N组负极性珈玛电压分别对应至所述N组灰阶；所述2组正极性珈玛电压及所述N组负极性珈玛电压输入到所述珈玛电压微调单元；以及所述珈玛电压微调单元根据所述2组正极性珈玛电压产生M组或N组正极性驱动电压，并根据所述N组负极性珈玛电压产生N组负极性驱动电压，M小于或等于N。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元包括若干个电阻，所述珈玛电压微调单元通过这些电阻进行分压以产生所述负极性驱动电压及所述正极性驱动电压。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元根据所述2组正极性珈玛电压直接产生所述N组正极性驱动电压以与所述N组负极性驱动电压对称。
在本发明的珈玛电压调整装置的调整方法中，所述珈玛电压微调单元根据所述2组正极性珈玛电压产生M组正极性驱动电压，再由一时序控制器将所述M组正极性驱动电压调整为与所述N组负级性驱动电压对称的N组正级性驱动电压。
 有益效果
相较于现有技术，本发明的珈玛电压调整装置的调整方法通过将现有技术中所需的2N组珈玛电压降低为N+2组，减少印刷电路板装配上珈玛集成电路的数量以节省成本。
 附图说明
图1为现有技术中通过硬件调整珈玛电压的示意图；
图2为现有技术中珈玛电压与穿透率的关系图；
图3为根据本发明实施例的珈玛电压调整装置、液晶面板及时序控制器的方快图；
图4为根据本发明第一实施例的珈玛电压调整装置；
图5为根据本发明第一实施例的珈玛电压调整装置的调整方法的流程图；
图6为为根据本发明第一实施例的2组负极性珈玛电压及N组正极性珈玛电压与穿透率的关系图；
图7为根据本发明第二实施例的珈玛电压调整装置；
图8为根据本发明第二实施例的珈玛电压调整装置的调整方法的流程图；以及
图9为为根据本发明第二实施例的2组正极性珈玛电压及N组负极性珈玛电压与穿透率的关系图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。
请参阅图3至图5，图3为根据本发明实施例的珈玛电压调整装置3、液晶面板34及时序控制器36的方快图，图4为根据本发明第一实施例的珈玛电压调整装置3，图5为根据本发明第一实施例的电压调整装置3的调整方法的流程图。所述珈玛电压调整装置3用于提供一液晶面板34显示N组灰阶。所述珈玛电压调整装置3包括一印刷电路板装配30以及一珈玛电压微调单元32。所述珈玛电压微调单元32例如为一数据芯片。所述珈玛电压微调单元32包括若干个电阻R。
于步骤S50中，所述印刷电路板装配30产生N+2组珈玛电压，所述N+2组珈玛电压包括2组负极性珈玛电压GMA1-GMA2以及N组正极性珈玛电压GMAN+1-GMA2N，其中所述2组负极性珈玛电压GMA1-GMA2分别对应至一最高灰阶以及一最低灰阶，所述N组正极性珈玛电压GMAN+1-GMA2N分别对应至所述N组灰阶。
所述印刷电路板装配30包括若干个珈玛集成电路(未图示)以产生所述N+2组珈玛电压。由于本发明仅需要产生N+2组珈玛电压，与图1的现有技术相比可以大幅降低珈玛集成电路(未图示)的数量，进而节省所述印刷电路板装配30的成本。
于步骤S52中，所述2组负极性珈玛电压GMA1-GMA2及所述N组正极性珈玛电压GMAN+1-GMA2N输入到所述珈玛电压微调单元32。
于步骤S54中，所述珈玛电压微调单元32根据所述2组负极性珈玛电压GMA1-GMA2产生M组负极性驱动电压或N组负极性驱动电压，并根据所述N组正极性珈玛电压GMAN+1-GMA2N产生N组正极性驱动电压，M小于或等于N。更明确地说，所述珈玛电压微调单元32是通过电阻R进行分压以产生上述负极性驱动电压及正极性驱动电压。
于一实施例中，所述珈玛电压微调单元32根据所述2组负极性珈玛电压GMA1-GMA2直接产生N组负极性驱动电压以与N组正极性驱动电压对称。
于另一实施例中，所述珈玛电压微调单元32根据所述2组负极性珈玛电压GMA1-GMA2产生M组负极性驱动电压，再由一电性耦接至所述珈玛电压微调单元32的时序控制器36将所述M组负极性驱动电压调整为与所述N组正级性驱动电压对称的N组负级性驱动电压。
图6为为根据本发明第一实施例的2组负极性珈玛电压GMA1-GMA2及N组正极性珈玛电压GMAN+1-GMA2N与穿透率的关系图。
请参阅图3、图7及图8，图7为根据本发明第二实施例的珈玛电压调整装置7，图8为根据本发明第二实施例的珈玛电压调整装置7的调整方法的流程图。所述珈玛电压调整装置7即等同图3的珈玛电压调整装置3，用于提供液晶面板34显示N组灰阶。所述珈玛电压调整装置7包括一印刷电路板装配70以及一珈玛电压微调单元72。所述珈玛电压微调单元72例如为一数据芯片。所述珈玛电压微调单元72包括若干个电阻R。
于步骤S80中，所述印刷电路板装配70产生N+2组珈玛电压，所述N+2组珈玛电压包括2组正极性珈玛电压GMAN+1-GMAN+2以及N组负极性珈玛电压GMA1-GMAN，其中所述2组正极性珈玛电压GMAN+1-GMAN+2分别对应至一最高灰阶以及一最低灰阶，所述N组负极性珈玛电压GMA1-GMAN分别对应至所述N组灰阶。
与第一实施例类似，本发明的第二实施例仅需要产生2组正极性珈玛电压GMAN+1-GMAN+2，总共仅需要产生N+2组珈玛电压，与图1的现有技术相比可以大幅降低珈玛集成电路(未图示)的数量，进而节省所述印刷电路板装配70的成本。
于步骤S82中，所述2组正极性珈玛电压GMAN+1-GMAN+2及所述N组负极性珈玛电压GMA1-GMAN输入到所述珈玛电压微调单元72。
于步骤S84中，所述珈玛电压微调单元72根据所述2组正极性珈玛电压GMAN+1-GMAN+2产生M组正极性驱动电压或N组正极性驱动电压，并根据所述N组负极性珈玛电压产生N组负极性驱动电压，M小于或等于N。更明确地说，所述珈玛电压微调单元72是通过电阻R进行分压以产生上述负极性驱动电压及正极性驱动电压。
于一实施例中，所述珈玛电压微调单元72根据所述2组正极性珈玛电压GMAN+1-GMAN+2直接产生N组正极性驱动电压以与N组负极性驱动电压对称。
于另一实施例中，所述珈玛电压微调单元72根据所述2组正极性珈玛电压GMAN+1-GMAN+2产生M组正极性驱动电压，再由图3的时序控制器36将所述M组正极性驱动电压调整为与所述N组负级性驱动电压对称的N组正级性驱动电压。
图9为为根据本发明第二实施例的2组正极性珈玛电压GMAN+1-GMAN+2及N组负极性珈玛电压GMA1-GMAN与穿透率的关系图。
本发明的珈玛电压调整装置的调整方法通过将现有技术中所需的2N组珈玛电压降低为N+2组，减少印刷电路板装配上珈玛集成电路的数量以节省成本。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
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  1. 一种珈玛电压调整装置的调整方法，所述珈玛电压调整装置用于提供一液晶面板显示N组灰阶且包括一印刷电路板装配以及一珈玛电压微调单元，所述珈玛电压调整装置的调整方法包括：
    所述印刷电路板装配包括若干个珈玛集成电路以产生N+2组珈玛电压，所述N+2组珈玛电压包括2组第一极性珈玛电压以及N组第二极性珈玛电压，所述2组第一极性珈玛电压分别对应至一最高灰阶以及一最低灰阶，所述N组第二极性珈玛电压分别对应至所述N组灰阶；
    所述2组第一极性珈玛电压及所述N组第二极性珈玛电压输入到所述珈玛电压微调单元；以及
    所述珈玛电压微调单元根据所述2组第一极性珈玛电压产生M组或N组第一极性驱动电压，并根据所述N组第二极性珈玛电压产生N组第二极性驱动电压，M小于或等于N。
  2. 根据权利要求1所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元包括若干个电阻，所述珈玛电压微调单元通过这些电阻进行分压以产生所述第一极性驱动电压及所述第二极性驱动电压。
  3. 根据权利要求1所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元根据所述2组第一极性珈玛电压直接产生所述N组第一极性驱动电压以与所述N组第二极性驱动电压对称。
  4. 根据权利要求1所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元根据所述2组第一极性珈玛电压产生M组第一极性驱动电压，再由一时序控制器将所述M组第一极性驱动电压调整为与所述N组第二级性驱动电压对称的N组第一级性驱动电压。
  5. 一种珈玛电压调整装置的调整方法，所述珈玛电压调整装置用于提供一液晶面板显示N组灰阶且包括一印刷电路板装配以及一珈玛电压微调单元，所述珈玛电压调整装置的调整方法包括：
    所述印刷电路板装配产生N+2组珈玛电压，所述N+2组珈玛电压包括2组负极性珈玛电压以及N组正极性珈玛电压，所述2组负极性珈玛电压分别对应至一最高灰阶以及一最低灰阶，所述N组正极性珈玛电压分别对应至所述N组灰阶；
    所述2组负极性珈玛电压及所述N组正极性珈玛电压输入到所述珈玛电压微调单元；以及
    所述珈玛电压微调单元根据所述2组负极性珈玛电压产生M组或N组负极性驱动电压，并根据所述N组正极性珈玛电压产生N组正极性驱动电压，M小于或等于N。
  6. 根据权利要求5所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元包括若干个电阻，所述珈玛电压微调单元通过这些电阻进行分压以产生所述负极性驱动电压及所述正极性驱动电压。
  7. 根据权利要求5所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元根据所述2组负极性珈玛电压直接产生所述N组负极性驱动电压以与所述N组正极性驱动电压对称。
  8. 根据权利要求5所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元根据所述2组负极性珈玛电压产生M组负极性驱动电压，再由一时序控制器将所述M组负极性驱动电压调整为与所述N组正级性驱动电压对称的N组负级性驱动电压。
  9. 一种珈玛电压调整装置的调整方法，所述珈玛电压调整装置用于提供一液晶面板显示N组灰阶且包括一印刷电路板装配以及一珈玛电压微调单元，所述珈玛电压调整装置的调整方法包括：
    所述印刷电路板装配产生N+2组珈玛电压，所述N+2组珈玛电压包括2组正极性珈玛电压以及N组负极性珈玛电压，所述2组正极性珈玛电压分别对应至一最高灰阶以及一最低灰阶，所述N组负极性珈玛电压分别对应至所述N组灰阶；
    所述2组正极性珈玛电压及所述N组负极性珈玛电压输入到所述珈玛电压微调单元；以及
    所述珈玛电压微调单元根据所述2组正极性珈玛电压产生M组或N组正极性驱动电压，并根据所述N组负极性珈玛电压产生N组负极性驱动电压，M小于或等于N。
  10. 根据权利要求9所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元包括若干个电阻，所述珈玛电压微调单元通过这些电阻进行分压以产生所述负极性驱动电压及所述正极性驱动电压。
  11. 根据权利要求9所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元根据所述2组正极性珈玛电压直接产生所述N组正极性驱动电压以与所述N组负极性驱动电压对称。
  12. 根据权利要求9所述的珈玛电压调整装置的调整方法，其中所述珈玛电压微调单元根据所述2组正极性珈玛电压产生M组正极性驱动电压，再由一时序控制器将所述M组正极性驱动电压调整为与所述N组负级性驱动电压对称的N组正级性驱动电压。
PCT/CN2013/086995 2013-11-08 2013-11-13 珈玛电压调整装置的调整方法 WO2015066938A1 (zh)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI534792B (zh) * 2014-12-11 2016-05-21 Richtek Technology Corp Gamma Curve Correction Method for Liquid Crystal Display
CN107064773B (zh) * 2017-03-17 2019-09-17 深圳市华星光电技术有限公司 Ate电压测试系统及ate电压测试方法
CN108648707B (zh) * 2018-05-02 2021-03-19 武汉精测电子集团股份有限公司 基于中大尺寸模组的p-gamma自动调校方法和装置
CN116229876B (zh) * 2021-12-03 2024-04-19 荣耀终端有限公司 调节显示组件的驱动电压的方法与终端设备
CN114333732B (zh) * 2022-01-11 2023-08-15 三星半导体(中国)研究开发有限公司 补偿显示面板的正负极性差异的方法以及源极驱动器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006274116A (ja) * 2005-03-30 2006-10-12 Citizen Watch Co Ltd 耐放射性接着剤組成物およびこれを用いた放射線装置
US20070279364A1 (en) * 2006-06-01 2007-12-06 Samsung Electronics Co., Ltd Liquid crystal display device, data driver thereof, and driving method thereof
CN101414452A (zh) * 2008-12-03 2009-04-22 苏州瀚瑞微电子有限公司 一种液晶显示驱动电路的实现方法及源极驱动电路模块
CN101739924A (zh) * 2008-11-10 2010-06-16 联咏科技股份有限公司 驱动器装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060028905A (ko) * 2004-09-30 2006-04-04 엘지.필립스 엘시디 주식회사 액정표시장치
TWI271695B (en) * 2005-03-29 2007-01-21 Chi Mei Optoelectronics Corp Driving system for color display
KR20070080623A (ko) * 2006-02-08 2007-08-13 삼성전자주식회사 감마전압 발생장치 및 이를 구비한 표시 장치
KR101921990B1 (ko) * 2012-03-23 2019-02-13 엘지디스플레이 주식회사 액정표시장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006274116A (ja) * 2005-03-30 2006-10-12 Citizen Watch Co Ltd 耐放射性接着剤組成物およびこれを用いた放射線装置
US20070279364A1 (en) * 2006-06-01 2007-12-06 Samsung Electronics Co., Ltd Liquid crystal display device, data driver thereof, and driving method thereof
CN101739924A (zh) * 2008-11-10 2010-06-16 联咏科技股份有限公司 驱动器装置
CN101414452A (zh) * 2008-12-03 2009-04-22 苏州瀚瑞微电子有限公司 一种液晶显示驱动电路的实现方法及源极驱动电路模块

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