WO2020073417A1 - 显示驱动方法以及装置、显示装置 - Google Patents
显示驱动方法以及装置、显示装置 Download PDFInfo
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- WO2020073417A1 WO2020073417A1 PCT/CN2018/115295 CN2018115295W WO2020073417A1 WO 2020073417 A1 WO2020073417 A1 WO 2020073417A1 CN 2018115295 W CN2018115295 W CN 2018115295W WO 2020073417 A1 WO2020073417 A1 WO 2020073417A1
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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
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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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
- G09G3/3648—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
- 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
Definitions
- the present application relates to the field of display technology, in particular to a display driving method and device, and a display device.
- TFT-LCD Thin Film Transistor Liquid Crystal Display (thin film transistor liquid crystal display)
- TFT-LCD Thin Film Transistor Liquid Crystal Display (thin film transistor liquid crystal display)
- the embodiments of the present application solve the technical problem that the charging effect of all display pixels of the display device cannot be guaranteed during the display driving process in the prior art by providing a display driving method and device, and a display device.
- An embodiment of the present application provides a display driving method, including the following steps:
- the first data signal is output;
- the display pixels of the preset number of rows from the signal output source of the row driving signal are near ends, and the display pixels of the remaining rows are far ends.
- the display driving method further includes:
- the step of acquiring the position of the row currently driven by the row driving signal includes:
- the count value is greater than a preset number of rows, it is determined that the row driven by the current row driving signal is at the far end; when the count value is less than or equal to the preset number of rows, the row driven by the current row driving signal is determined Located at the proximal end.
- the step of acquiring the position of the row currently driven by the row driving signal includes:
- the count value is greater than a preset number of rows, it is determined that the row of the signal driven by the current row driving signal is located at the near end; when the count value is less than or equal to the preset number of rows, it is determined that the current row driving signal is driven The line of the signal is located at the far end.
- the preset number of lines is set according to a preset ratio of the number of lines of all display pixels.
- the preset ratio is 50%.
- the amplitude of the first data signal is smaller than the amplitude of the second data signal.
- An embodiment of the present application further provides a display driving device, including:
- the row driving module periodically outputs row driving signals to drive the display pixels of each row;
- the driving controller outputs a driving control signal, controls the row driving module to scan, and at the same time obtains the position of the row driven by the row driving signal, and determines whether the row driven by the row driving signal is near or far end;
- the data driving module generates a first data signal when the row driven by the row driving signal is near the end according to the position determination result of the driving controller, and the row driven by the row driving signal is located far End, output the second data signal;
- the display pixels of the preset number of rows from the signal output source of the row driving signal are near ends, and the display pixels of the remaining rows are far ends.
- the driving controller includes a counter and a processor, and the row driving module counts once every time a row of display pixels is driven; the processor determines that the row driving signal is currently driving according to the counting result And the corresponding drive control signal is generated to control the data drive module to output the corresponding data signal.
- the drive control signal is a one-bit status code.
- the data driving module includes:
- the gamma voltage generating unit generates a first gamma signal when the row driven by the row drive signal is currently at the near end, and generates a second gamma when the row driven by the row drive signal is at the far end signal;
- the data driving unit outputs the corresponding data signal according to the gamma signal generated by the gamma voltage generating unit.
- the amplitude of the first data signal is smaller than the amplitude of the second data signal.
- the processor determines the current value according to the counting result of the counter when the count value is greater than a preset number of lines.
- the row driven by the row driving signal is located at the far end, otherwise it is determined that the row driven by the row driving signal is currently located at the near end.
- the processor when the processor provides a drive signal line by line in reverse order and drives the display pixels line by line, the processor according to the count result of the counter when the count value is less than or equal to the preset number of lines , It is determined that the row driven by the row driving signal is currently at the far end, otherwise it is determined that the row driven by the row driving signal is currently at the near end.
- the preset number of lines is set according to a preset ratio of the number of lines of all display pixels.
- the preset ratio is 50%.
- An embodiment of the present application also provides a display device
- the display drive device includes:
- the row driving module periodically outputs row driving signals to drive the display pixels of each row;
- the driving controller outputs a driving control signal, controls the row driving module to scan, and at the same time obtains the position of the row driven by the row driving signal, and determines whether the row driven by the row driving signal is near or far end;
- the data driving module generates a first data signal when the row driven by the row driving signal is near the end according to the position determination result of the driving controller, and the row driven by the row driving signal is located far End, output the second data signal;
- the display pixels of the preset number of rows from the signal output source of the row driving signal are near ends, and the display pixels of the remaining rows are far ends.
- the driving controller includes a counter and a processor, and the row driving module counts once every time a row of display pixels is driven; the processor determines that the row driving signal is currently driving according to the counting result And the corresponding drive control signal is generated to control the data drive module to output the corresponding data signal.
- the drive control signal is a one-bit status code.
- the data driving module includes:
- the gamma voltage generating unit generates a first gamma signal when the row driven by the row drive signal is currently at the near end, and generates a second gamma when the row driven by the row drive signal is at the far end signal;
- the data driving unit outputs the corresponding data signal according to the gamma signal generated by the gamma voltage generating unit.
- the embodiments of the present application output different data signals according to the position of the row driven by the row driving signal, thereby improving the problem of the difference in the charging effect of the display pixels at the near end and the far end, and achieving a uniform display effect.
- FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.
- FIG. 2 is a schematic flowchart of a method of a display driving device according to an embodiment of the present application
- FIG. 3 is a schematic diagram of functional modules of a display driving device in an embodiment of the present application.
- FIG. 4 is a schematic diagram of functional modules of a display driving device in another embodiment of the present application.
- first”, “second”, etc. are for descriptive purposes only, and cannot be interpreted as indications or hints Its relative importance or implicitly indicates the number of technical features indicated.
- the features defined with “first” and “second” may include at least one of the features either explicitly or implicitly.
- the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary people in the art to achieve, when the combination of technical solutions conflicts with each other or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by this application.
- an embodiment of the present application proposes a new type of display driving scheme, that is, according to different driving positions during the display driving process , Output the corresponding gamma signal to ensure the charging effect of all display pixels of the display device, and achieve uniform brightness of the display device.
- FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.
- the display device includes a substrate 10 and a display drive device 11. specifically:
- a display area 101 and a non-display area 102 are formed on the substrate 10; wherein, the display area 101 includes a plurality of display pixels, and the plurality of display pixels may be arranged in a matrix structure of rows and columns, and of course is not limited to a matrix arrangement structure, but may also be other Arrangement.
- the display area 101 is also formed with a signal line and a switching device arranged crosswise, the signal line may specifically include a first signal line and a second signal line electrically connected to the switching device, the switching device is used to receive the first When the first driving signal on the signal line activates the switching device, the display pixel will receive the second driving signal from the second signal line through the activated switching device and light up according to the second driving signal.
- the above switching device may include but is not limited to TFT (Thin Film Transistor (thin film transistor), for example, may also include field effect transistors, transistors, etc.
- the above-mentioned first and second signal lines may also be referred to as scan lines and data lines.
- the above display driving device may specifically include a driving controller 11, a row driving module 12, and a data driving module 13, wherein the driving controller 11 outputs a driving control signal to control the row driving module 12 and the data driving module 13 to output corresponding driving signals to drive Display pixels work.
- the row driving module 12 outputs a driving signal row by row, and if the display pixels of the current row receive the driving signal, the corresponding switching device starts to work.
- the display pixels of the current row will receive the data signal output by the data driving module 13 through the activated switching device, and light up according to the data signal.
- the display driving device completes the drive of all rows of display pixels line by line, and then completes the update of one frame of pictures. Since the display driving device outputs the driving signal line by line, when the display driving device outputs the driving signal to the display pixels far away from the display driving device, the data signal output from the data driving module 13 cannot satisfy the signal driving effect.
- FIG. 2 is a schematic flowchart of a method of a display driving apparatus according to an embodiment of the present application.
- the technical solution of the present application proposes a new type of display driving method.
- the display pixels of all rows are divided into display pixels at the near end and display pixels at the far end, specifically the preset rows from the display driving device
- the number of display pixels is the display pixel at the near end, and the remaining rows are the display pixels at the far end.
- the preset number of lines may be set according to a preset ratio of the number of lines of all display pixels.
- the preset ratio is, for example, 1/2.
- the setting starts from the display pixels close to the display driving device
- the display pixels of the first 500 lines are the display pixels of the near end
- the display pixels of the following line 501 are the display of the far end Pixels.
- the preset line number can also consider the charging effect. For example, when the designer finds that the display pixel driven to the 600th line displays, the display effect of the display pixels starts to deteriorate, then the preset line number can be set to 600.
- the above-mentioned novel display driving method includes the following steps:
- S12 Obtain the position of the row currently driven by the row driving signal, and determine whether the row currently driven by the row driving signal is at the near end or the far end;
- the first driving signal is output by the row driving module 12, when the display pixels of each row are driven, the position of the current row driven is obtained, and it is judged whether the current row is located at the near end or at the far end, and when the near end is output, the first The data signal, when located at the far end, outputs a second data signal.
- the first data signal and the second data signal are, for example, signals with different amplitudes. Specifically, the amplitude of the first data signal is smaller than the amplitude of the second data signal.
- the embodiments of the present application output different data signals according to the position of the row driven by the row driving signal, thereby improving the problem of the difference in the charging effect of the display pixels at the near end and the far end, and achieving a uniform display effect.
- line driving signals may be provided in a row-by-row or reverse-sequence row-by-row and interlace manner to drive the display pixels row-by-row or interlace.
- the driving controller 11 controls the row driving module 12 to periodically output the first driving signal and sequentially output to the display pixels in the first row, the display pixels in the second row, the display pixels in the third row ... The nth row of display pixels.
- the drive controller 11 controls the line drive module 12 to periodically output the first drive signal and sequentially output the display pixels in the n-th row, the display pixels in the n-1th row, and the display in the n-2th row Pixels ... Display pixels in the first row.
- the drive controller 11 controls the line drive module 12 to periodically output the second drive signal and sequentially output to the display pixels in the first row, the display pixels in the third row, the display pixels in the fifth row ... n-1 row display pixels; then output to the second row display pixels, the fourth row display pixels ... nth row display pixels.
- the position of the row driven by the row driving signal may be implemented by a counter. Specifically, by setting a counter for performing the driving of the display pixels every line, counting is performed. According to the count value of the counter, the row position driven by the current row driving signal can be determined.
- the counter technology is relatively simple, so it is easy to add the counter structure to the display driving device; if the counter structure already exists in the display driving device, the original structure of the display driving device can also be used, thereby saving Hardware costs.
- Step S12 specifically includes: when the count value is greater than the first preset threshold, determine that the line driven by the current line drive signal is at the far end; when the count value is less than or equal to the first preset threshold, determine the line driven by the current line drive signal Located at the proximal end.
- step S12 specifically includes: when the count value is greater than the first preset threshold, determining that the line driven by the current line drive signal is located at the near end; When the count value is less than or equal to the first preset threshold, it is determined that the row driven by the current row driving signal is located at the far end.
- Step S12 specifically includes: when the count value is within the preset range, determine that the line driven by the current line drive signal is at the far end; when the count value is outside the preset range, determine that the line driven by the current line drive signal is at the near end.
- the display pixels of 1000 lines it is assumed that the display pixels of the 1-500th line close to the data driving module 13 are used as display pixels at the near end, and the remaining display pixels are used as display pixels at the far end. Therefore, when the count value is within 250-500 and 750-1000, it is determined that the current line drive signal has been driven to the display pixel at the far end; when the count value is within 1-250 (excluding), and 501-750 (excluding ), It is determined that the current row driving signal still drives the near-end display pixels.
- the embodiments of the present application may also be modified in other forms, for example, dividing the display pixels of all rows into more than three regions, and outputting different data signals corresponding to the multiple regions to ensure the Drive effect.
- FIG. 3 is a schematic diagram of functional modules of a display driving device in an embodiment of the present application.
- the display driving device includes:
- the row driving module 12 periodically outputs row driving signals, drives the display pixels of each row, and obtains the position of the row driven by the current row driving signal;
- the driving controller 11 outputs a driving control signal, controls the row driving module 12 to scan, and at the same time obtains the position of the row currently driven by the row driving signal, and determines that the row currently driven by the row driving signal is located at the near end Remote
- the data driving module 13 generates a first data signal when the row driven by the row driving signal is located at the near end according to the position determination result of the driving controller, and the row driven by the row driving signal is located at At the far end, the second data signal is output; among the display pixels of all the rows, the display pixels of the preset number of rows from the signal output source of the row drive signal are the near end, and the display pixels of the remaining rows are the far end.
- the driving controller 11 controls the row driving module 12 to output a driving signal row by row or interlaced, so as to drive the display pixels of each row.
- the driving controller determines whether the current row driven by the row driving signal is at the near end or the far end, and controls the data driving module 13 to output the corresponding data signal to improve the problem of the difference in the charging effect of the display pixels at the near end and far end, to achieve uniform display effect.
- FIG. 4 is a schematic diagram of functional modules of a display driving device in another embodiment of the present application.
- the driving controller 11 includes a counter 14 and a processor MCU, and the row driving module 12 counts once every time a row of display pixels is driven; the processor obtains the current position based on the counting result. The row position driven by the row driving signal is described.
- a counter 14 is provided for counting the driving of the display pixels every time a row is completed.
- the processor can determine the row position driven by the current row driving signal according to the count value of the counter, and generate a driving control signal to control the data driving module 13 to output the corresponding data signal.
- the processor determines the position of the row currently driven by the row driving signal according to the counting result of the counter 14, and generates a first control signal when the row currently driven by the row driving signal is located at the near end , When the line driven by the current line drive signal is at the far end, a second control signal is generated.
- the counter technology is relatively simple, so it is easy to implement the counter structure in the display driving device.
- the above display driving device controls the row driving module 12 and the data driving module 13 to output signals through the driving controller 11 to realize the display control of the display pixels. Moreover, by placing the counter 14 in the drive controller 11 and using the control of the drive controller 11, the purpose of controlling the output signal of the drive module 13 according to the row position can be directly achieved. In addition, if a counter structure already exists in the display driving device, the original structure of the display driving device can also be used, thereby saving hardware costs.
- the first control signal and the second control signal may be implemented with a one-bit status code, for example, the status code is a low-level signal, which is the first control signal; the status code is a high-level signal, which is The second control signal.
- the status code is a high-level signal, which is a first control signal; and the status code is a low-level signal, which is a second control signal.
- the data driving module 13 includes:
- the gamma voltage generating unit 131 generates a first gamma signal when the row driven by the row drive signal is currently at the near end, and generates a second gamma when the row driven by the row drive signal is at the far end Horse signal
- the data driving unit 132 outputs the corresponding data signal according to the gamma signal generated by the gamma voltage generating unit.
- the above gamma voltage generating unit 131 may be provided with two storage modules to store different values, for example, the first storage module bank_A is used to store the first gamma voltage value, and the second storage module bank_B is used to store the second gamma Voltage value.
- the corresponding first gamma voltage is output to the digital-to-analog conversion module to generate the first gamma signal.
- bank_B the corresponding second gamma voltage is output to the digital-to-analog conversion module to generate the second gamma signal.
- the data driving unit 132 outputs the corresponding data signal according to the gamma signal generated by the gamma voltage generating unit 131.
- the above-mentioned gamma voltage generating unit 131 outputs the corresponding stored value according to the first control signal and the second control signal output by the drive controller 11, thereby generating the corresponding gamma signal.
- the gamma voltage generating unit 131 outputs the value of bank_A according to the first control signal, so that the gamma voltage generating unit 131 generates the first gamma signal; the gamma voltage generating unit 131 outputs bank_B according to the second control signal , So that the gamma voltage generating unit 131 generates the second gamma signal.
- the drive controller 11 controls the row drive module 12 to sequentially provide row-by-row, reverse-sequence, row-by-row or interlace drive signals to drive the display pixels row-by-row or interlace.
- the processor determines the current line drive according to the counting result of the counter when the count value is greater than a preset number of lines The line driven by the signal is at the far end, otherwise it is determined that the line driven by the line drive signal is currently at the near end; or,
- the processor determines the current position when the count value is less than or equal to the preset number of lines according to the counting result of the counter.
- the row driven by the row drive signal is located at the far end, otherwise it is determined that the row driven by the row drive signal is currently located at the near end.
- the processor determines the line currently driven by the line drive signal according to the counting result of the counter when the count value is within a preset range It is located at the far end, otherwise it is determined that the row driven by the row drive signal is currently located at the near end.
- the first preset threshold is the preset number of lines when judging from the near end to the far end. Taking the display pixels of 1000 lines as an example, it is assumed that the display pixels of the 1-500th line close to the data driving module 13 are used as display pixels at the near end, and the remaining display pixels are used as display pixels at the far end. Therefore, when the count value is greater than 500, it is determined that the current row driving signal has been driven to the display pixel at the far end; when the count value is less than or equal to 500, it is determined that the current row driving signal still drives the display pixel at the near end.
- the processor determines that the line driven by the current line drive signal is located when the count value is greater than the first preset threshold according to the counting result of the counter Near end; when the count value is less than or equal to the first preset threshold, it is determined that the row driven by the current row driving signal is located at the far end.
- the processor row driving module 12 determines the second preset threshold.
- the second preset threshold value is 1/2 of the preset number of lines when judging from the near end to the far end. Taking the display pixels of 1000 lines as an example, it is assumed that the display pixels of the 1-500th line close to the data driving module 13 are used as display pixels at the near end, and the remaining display pixels are used as display pixels at the far end. Therefore, when the count value is within 250-500 and 750-1000, it is determined that the current line drive signal has been driven to the display pixel at the far end; when the count value is within 1-250 (excluding), and 501-750 (excluding ), It is determined that the current row driving signal still drives the near-end display pixels.
- the embodiments of the present application may also be modified in other forms, for example, dividing the display pixels of all rows into more than three regions, and outputting different data signals corresponding to the multiple regions to ensure the Drive effect.
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Abstract
一种显示驱动方法、装置及显示装置,显示驱动方法在对显示像素进行扫描驱动时,对扫描到近端的显示像素输出第一数据信号,对扫描到远端的显示像素输出第二数据信号,从而保证显示像素的驱动效果。
Description
相关申请
本申请要求2018年10月8日申请的,申请号为201811170769.2,名称为“显示驱动方法以及装置、显示装置”的中国专利申请的优先权,在此将其全文引入作为参考。
技术领域
本申请涉及显示技术领域,尤其涉及显示驱动方法及装置、显示装置。
背景技术
显示装置,例如TFT-LCD(Thin Film Transistor Liquid Crystal
Display,薄膜晶体管液晶显示器 ),已经成为了现代IT、视讯产品中不可缺少的产品。
但是随着显示装置大尺寸、高解析度的要求,现有的数据驱动方式无法保证显示效果,亟待改进。
申请内容
本申请实施例通过提供一种显示驱动方法及装置、显示装置,解决了现有技术中显示驱动过程中,无法保证显示装置所有显示像素的充电效果的技术问题。
本申请实施例提供了一种显示驱动方法,包括以下步骤:
周期性地输出行驱动信号,对每一行的显示像素进行驱动;
获取当前所述行驱动信号所驱动的行的位置,并判断当前所述行驱动信号所驱动的行位于近端还是远端;
若当前所述行驱动信号所驱动的行位于近端时,则输出第一数据信号;以及,
若当前所述行驱动信号所驱动的行位于远端时,则输出第二数据信号;
其中,所有行的显示像素中,距离所述行驱动信号的信号输出源预设行数量的显示像素为近端,其余行的显示像素为远端。
可选地,所述显示驱动方法还包括:
每完成一行显示像素的驱动,则进行计数,以根据该计数结果获取当前所述行驱动信号所驱动的行的位置。
可选地,当顺序逐行提供行驱动信号时,所述获取当前所述行驱动信号所驱动的行的位置的步骤包括:
当计数值大于一预设行数量时,确定当前所述行驱动信号所驱动的行位于远端;当计数值小于或等于该预设行数量时,确定当前所述行驱动信号所驱动的行位于近端。
可选地,当逆序逐行提供行驱动信号时,所述获取当前所述行驱动信号所驱动的行的位置的步骤包括:
当计数值大于一预设行数量时,确定当前所述行驱动信号所驱动的信号的行位于近端;当计数值小于或等于该预设行数量时,确定当前所述行驱动信号所驱动的信号的行位于远端。
可选地,所述预设行数量根据所有显示像素的行数量的预设比例来设置。
可选地,所述预设比例为50%。
可选地,所述第一数据信号的幅值小于第二数据信号的幅值。
本申请实施例还提供一种显示驱动装置,包括:
行驱动模块,周期性地输出行驱动信号,对每一行的显示像素进行驱动;
驱动控制器,输出驱动控制信号,控制所述行驱动模块进行扫描,同时获取当前所述行驱动信号所驱动的行的位置,并确定当前所述行驱动信号所驱动的行位于近端还是远端;
数据驱动模块,根据所述驱动控制器的位置确定结果,在当前所述行驱动信号所驱动的行位于近端时,产生第一数据信号,在当前所述行驱动信号所驱动的行位于远端时,输出第二数据信号;
其中,所有行的显示像素中,距离所述行驱动信号的信号输出源预设行数量的显示像素为近端,其余行的显示像素为远端。
可选地,所述驱动控制器包括计数器和处理器,在所述行驱动模块每完成一行显示像素的驱动时,计数一次;所述处理器根据该计数结果确定当前所述行驱动信号所驱动的行位置,并产生对应的驱动控制信号,来控制所述数据驱动模块输出对应的数据信号。
可选地,所述驱动控制信号为一位状态码。
可选地,所述数据驱动模块包括:
伽马电压产生单元,在当前所述行驱动信号所驱动的行位于近端时,产生第一伽马信号;在当前所述行驱动信号所驱动的行位于远端时,产生第二伽马信号;
数据驱动单元,根据伽马电压产生单元产生的伽马信号,输出对应的数据信号。
可选地,第一数据信号的幅值小于第二数据信号的幅值。
可选地,当所述处理器顺序逐行提供驱动信号,对显示像素进行逐行驱动时,所述处理器根据所述计数器的计数结果,当计数值大于一预设行数量时,确定当前所述行驱动信号所驱动的行位于远端,否则确定当前所述行驱动信号所驱动的行位于近端。
可选地,当所述处理器逆序逐行提供驱动信号,对显示像素进行逐行驱动时,所述处理器根据所述计数器的计数结果,当计数值小于或等于所述预设行数量时,确定当前所述行驱动信号所驱动的行位于远端,否则确定当前所述行驱动信号所驱动的行位于近端。
可选地,所述预设行数量根据所有显示像素的行数量的预设比例来设置。
可选地,所述预设比例为50%。
本申请实施例还提供一种显示装置,
包括显示像素以及驱动所述显示像素点亮的显示驱动装置,该显示驱动装置包括:
行驱动模块,周期性地输出行驱动信号,对每一行的显示像素进行驱动;
驱动控制器,输出驱动控制信号,控制所述行驱动模块进行扫描,同时获取当前所述行驱动信号所驱动的行的位置,并确定当前所述行驱动信号所驱动的行位于近端还是远端;
数据驱动模块,根据所述驱动控制器的位置确定结果,在当前所述行驱动信号所驱动的行位于近端时,产生第一数据信号,在当前所述行驱动信号所驱动的行位于远端时,输出第二数据信号;
其中,所有行的显示像素中,距离所述行驱动信号的信号输出源预设行数量的显示像素为近端,其余行的显示像素为远端。
可选地,所述驱动控制器包括计数器和处理器,在所述行驱动模块每完成一行显示像素的驱动时,计数一次;所述处理器根据该计数结果确定当前所述行驱动信号所驱动的行位置,并产生对应的驱动控制信号,来控制所述数据驱动模块输出对应的数据信号。
可选地,所述驱动控制信号为一位状态码。
可选地,所述数据驱动模块包括:
伽马电压产生单元,在当前所述行驱动信号所驱动的行位于近端时,产生第一伽马信号;在当前所述行驱动信号所驱动的行位于远端时,产生第二伽马信号;
数据驱动单元,根据伽马电压产生单元产生的伽马信号,输出对应的数据信号。
本申请实施例根据行驱动信号所驱动的行的位置,输出不同的数据信号,从而改善近端远端的显示像素充电效果差异的问题,达到均匀显示效果。
附图说明
图1是本申请一实施例的显示装置的结构示意图;
图2是本申请一实施例的显示驱动装置方法的流程示意图;
图3是本申请一实施例中显示驱动装置的功能模块示意图;
图4是本申请另一实施例中显示驱动装置的功能模块示意图。
附图标号说明:
| 名称 | 标号 | 名称 | 标号 |
| 基板 | 10 | 驱动控制器 | 11 |
| 显示区 | 101 | 行驱动模块 | 12 |
| 非显示区 | 102 | 数据驱动模块 | 13 |
| 行位置获取模块 | 14 | 伽马电压产生单元 | 131 |
| 数据驱动单元 | 132 |
具体实施方式
为了更好的理解上述技术方案,下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
需要说明,若本申请实施例中有涉及方向性指示(诸如上、下、左、右、前、后……),则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
另外,若本申请实施例中有涉及“第一”、“第二”等的描述,则该“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其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至少一个该特征。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本申请要求的保护范围之内。
本申请实施例为解决现有的显示驱动方案无法满足显示装置的大尺寸、高解析度的要求的技术问题,提出一种新型的显示驱动方案,即在显示驱动过程中,根据不同的驱动位置,输出对应的伽马信号,以保证显示装置所有的显示像素的充电效果,实现显示装置的亮度均匀。
为方便本申请实施方案的理解,在描述本申请具体实施方案之前,先简单介绍一实施例结构的显示装置的驱动原理。
参照图1,图1是本申请一实施例的显示装置的结构示意图。该显示装置包括基板10、显示驱动装置11。具体地:
基板10上形成有显示区101和非显示区102;其中,显示区101内包括多个显示像素,该多个显示像素可呈行列分布的矩阵结构,当然不限于矩阵排列结构,也可以为其他排列方式。
进一步地,该显示区101还形成有交叉设置的信号线路以及开关器件,信号线路具体可包括与开关器件电性连接的第一信号线和第二信号线,该开关器件用于接收到第一信号线上的第一驱动信号时,启动开关器件,此时显示像素将通过启动的开关器件从第二信号线上接收第二驱动信号,并根据第二驱动信号点亮。具体地,上述开关器件可包括但不限于TFT(Thin
Film Transistor,薄膜晶体管),例如还可包括场效应管、三极管等等。上述第一信号线和第二信号线还可称为扫描线和数据线。
上述显示驱动装置具体可包括驱动控制器11、行驱动模块12、数据驱动模块13,其中驱动控制器11输出驱动控制信号,来控制行驱动模块12和数据驱动模块13输出对应的驱动信号,驱动显示像素工作。具体地,行驱动模块12逐行输出驱动信号,若当前行的显示像素接收到该驱动信号时,对应的开关器件启动工作。当前行的显示像素将通过启动的开关器件接收数据驱动模块13输出的数据信号,并根据数据信号点亮。以此类推,显示驱动装置逐行完成所有行显示像素的驱动后,完成一帧画面的更新。由于显示驱动装置逐行输出驱动信号时,当显示驱动装置对离显示驱动装置较远的显示像素输出驱动信号时,从数据驱动模块13输出的数据信号无法满足信号驱动效果。
对此,参照图2,图2是本申请一实施例的显示驱动装置方法的流程示意图。本申请技术方案提出了一种新型的显示驱动方法,在该显示驱动方法中,将所有行的显示像素划分为近端的显示像素和远端的显示像素,具体为距离显示驱动装置预设行数量的显示像素为近端的显示像素,其余行的则为远端的显示像素。进一步地,该预设行数量可根据所有显示像素的行数量的预设比例来设置。该预设比例例如为1/2。例如,以1000行的显示像素为例,则设定以靠近显示驱动装置的显示像素开始起算,前500行的显示像素为近端的显示像素,第501行以后的显示像素为远端的显示像素。另外,该预设行数量还可以考虑充电效果,例如设计人员发现驱动至第600行的显示像素时,显示像素的显示效果开始变差,则可以将该预设行数量设置为600。
具体地,上述新型的显示驱动方法包括以下步骤:
S11,周期性地输出行驱动信号,对每一行的显示像素进行驱动;
S12,获取当前所述行驱动信号所驱动的行的位置,并判断当前所述行驱动信号所驱动的行位于近端还是远端;
S13,若当前所述行驱动信号所驱动的行位于近端时,则输出第一数据信号;以及,
S14,若当前所述行驱动信号所驱动的行位于远端时,则输出第二数据信号。
通过行驱动模块12输出第一驱动信号,对每一行的显示像素进行驱动时,获取驱动的当前行的位置,并判断当前行是位于近端还是位于远端,当位于近端时输出第一数据信号,当位于远端时,输出第二数据信号。其中第一数据信号和第二数据信号例如为幅值不同的信号,具体地,第一数据信号的幅值小于第二数据信号的幅值。
本申请实施例根据行驱动信号所驱动的行的位置,输出不同的数据信号,从而改善近端远端的显示像素充电效果差异的问题,达到均匀显示效果。
在本申请某一实施例中,上述步骤S11中,可以顺序逐行或逆序逐行、隔行提供行驱动信号,来对显示像素进行逐行或隔行驱动。顺序逐行提供行驱动信号时,驱动控制器11控制行驱动模块12周期性地输出第一驱动信号,并依次输出至第1行显示像素、第2行显示像素、第3行显示像素……第n行显示像素。逆序逐行提供驱动信号时,驱动控制器11控制行驱动模块12周期性地输出第一驱动信号,并依次输出至第n行显示像素、第n-1行显示像素、第n-2行显示像素……第1行显示像素。隔行提供行驱动信号,时,驱动控制器11控制行驱动模块12周期性地输出第二驱动信号,并依次输出至第1行显示像素、第3行显示像素、第5行显示像素……第n-1行显示像素;再依次输出至第2行显示像素、第4行显示像素……第n行显示像素。
在本申请某一实施例中,上述行驱动信号所驱动的行的位置可通过计数器来实现。具体地,通过设置一计数器,用于在每完成一行显示像素的驱动,则进行计数。根据该计数器的计数值,可以确定当前行驱动信号所驱动的行位置。本申请实施例中,计数器技术比较简单,因此在显示驱动装置中增加该计数器结构很容易实现;若显示驱动装置中已存在计数器结构时,因此还可以利用显示驱动装置的原有结构,从而节省了硬件成本。
进一步地,由于行驱动方式的不同,使得根据计数器的计数值来确定当前行驱动信号所驱动的行位置也存在差异。以下将根据行驱动方式为逐行驱动、隔行驱动方式进行分别描述。
当处理器控制行驱动模块12对显示像素进行顺序逐行驱动时,确定第一预设阈值。该第一预设阈值为近端远端判断时的预设行数量。步骤S12具体包括:当计数值大于第一预设阈值时,确定当前行驱动信号所驱动的行位于远端;当计数值小于或等于第一预设阈值时,确定当前行驱动信号驱动的行位于近端。
以1000行显示像素为例,假设把靠近数据驱动模块13的第1-500行显示像素作为近端的显示像素,其余的显示像素作为远端的显示像素。因此,当计数值大于500时,确定当前行驱动信号已经驱动至远端的显示像素;当计数值小于或等于500时,确定当前行驱动信号仍然驱动近端的显示像素。
同理,当处理器控制行驱动模块12对显示像素进行逆序逐行驱动时,步骤S12具体包括:当计数值大于第一预设阈值时,确定当前行驱动信号所驱动的行位于近端;当计数值小于或等于第一预设阈值时,确定当前行驱动信号驱动的行位于远端。
当处理器控制行驱动模块12对显示像素进行隔行驱动时,确定第二预设阈值。该第二预设阈值为近端远端判断时的预设行数量的1/2。步骤S12具体包括:当计数值位于预设范围内时,确定当前行驱动信号所驱动的行位于远端;当计数值位于预设范围外时,确定当前行驱动信号驱动的行位于近端。
以1000行显示像素为例,假设把靠近数据驱动模块13的第1-500行显示像素作为近端的显示像素,其余的显示像素作为远端的显示像素。因此,当计数值位于250-500,以及750-1000内时,确定当前行驱动信号已经驱动至远端的显示像素;当计数值位于1-250(不含),以及501-750(不含)时,确定当前行驱动信号仍然驱动近端的显示像素。
基于上述实施例,本申请实施例还可以进行其他形式的变形,例如将所有行的显示像素划分为三个以上的区域,针对该多个区域对应输出不同的数据信号,以保证所有显示像素的驱动效果。
参照图3,图3是本申请一实施例中显示驱动装置的功能模块示意图。该显示驱动装置包括:
行驱动模块12,周期性地输出行驱动信号,对每一行的显示像素进行驱动,以及获取当前所述行驱动信号所驱动的行的位置;
驱动控制器11,输出驱动控制信号,控制所述行驱动模块12进行扫描,同时获取当前所述行驱动信号所驱动的行的位置,并确定当前所述行驱动信号所驱动的行位于近端还是远端;
数据驱动模块13,根据所述驱动控制器的位置确定结果,在当前所述行驱动信号所驱动的行位于近端时,产生第一数据信号,在当前所述行驱动信号所驱动的行位于远端时,输出第二数据信号;其中,所有行的显示像素中,距离所述行驱动信号的信号输出源预设行数量的显示像素为近端,其余行的显示像素为远端。
本申请实施例中,驱动控制器11控制行驱动模块12逐行或隔行输出驱动信号,以对每一行的显示像素进行驱动。同时驱动控制器确定当前所述行驱动信号所驱动的行位于近端还是远端,并控制数据驱动模块13输出对应的数据信号,改善近端远端的显示像素充电效果差异的问题,达到均匀显示效果。
结合参照图4,图4是本申请另一实施例中显示驱动装置的功能模块示意图。在本申请某一实施例中,上述驱动控制器11包括计数器14和处理器MCU,在所述行驱动模块12每完成一行显示像素的驱动时,计数一次;处理器根据该计数结果获取当前所述行驱动信号所驱动的行位置。
具体地,通过设置一计数器14,用于在每完成一行显示像素的驱动,则进行计数。处理器根据该计数器的计数值,可以确定当前行驱动信号所驱动的行位置,并产生驱动控制信号,来控制数据驱动模块13输出对应的数据信号。具体地,处理器根据所述计数器14的计数结果,确定当前所述行驱动信号所驱动的行的位置,并在当前所述行驱动信号所驱动的行位于近端时,产生第一控制信号,在当前所述行驱动信号所驱动的行位于远端时,产生第二控制信号。本申请实施例中,计数器技术比较简单,因此在显示驱动装置中增加该计数器结构很容易实现。
上述显示驱动装置通过驱动控制器11来控制行驱动模块12和数据驱动模块13输出信号,实现对显示像素的显示控制。而且,通过将计数器14置于驱动控制器11中,利用驱动控制器11的控制,直接就能达到根据行位置控制数据驱动模块13输出信号的目的。另外,若显示驱动装置中已存在计数器结构时,因此还可以利用显示驱动装置的原有结构,从而节省了硬件成本。
进一步地,上述第一控制信号和第二控制信号可以用一位状态码来实现,例如该状态码为低电平信号,则为第一控制信号;该状态码为高电平信号,则为第二控制信号。当然也可以设置为,该状态码为高电平信号,则为第一控制信号;该状态码为低电平信号,则为第二控制信号。
在本申请某一实施例中,上述数据驱动模块13包括:
伽马电压产生单元131,在当前所述行驱动信号所驱动的行位于近端时,产生第一伽马信号;在当前所述行驱动信号所驱动的行位于远端时,产生第二伽马信号;
数据驱动单元132,根据伽马电压产生单元产生的伽马信号,输出对应的数据信号。
上述伽马电压产生单元131中,可设置两个存储模块,来存储不同的值,例如第一存储模块bank_A用于存储第一伽马电压值,第二存储模块bank_B用于存储第二伽马电压值。当ban_A被选择时,对应的第一伽马电压输出至数模转换模块,以产生第一伽马信号。当bank_B被选择时,对应的第二伽马电压输出至数模转换模块,以产生第二伽马信号。数据驱动单元132则根据伽马电压产生单元131产生的伽马信号,输出对应的数据信号。
进一步地,上述伽马电压产生单元131根据驱动控制器11输出的第一控制信号、第二控制信号,输出对应的存储值,进而产生对应的伽马信号。例如,伽马电压产生单元131根据第一控制信号时,输出bank_A的值,从而使得伽马电压产生单元131产生第一伽马信号;伽马电压产生单元131根据第二控制信号时,输出bank_B的值,从而使得伽马电压产生单元131产生第二伽马信号。
在本申请某一实施例中,上述驱动控制器11控制行驱动模块12顺序逐行、逆序逐行或隔行提供驱动信号,对显示像素进行逐行或隔行驱动。
当所述处理器顺序逐行提供驱动信号,对显示像素进行逐行驱动时,所述处理器根据所述计数器的计数结果,当计数值大于一预设行数量时,确定当前所述行驱动信号所驱动的行位于远端,否则确定当前所述行驱动信号所驱动的行位于近端;或者,
当所述处理器逆序逐行提供驱动信号,对显示像素进行逐行驱动时,所述处理器根据所述计数器的计数结果,当计数值小于或等于所述预设行数量时,确定当前所述行驱动信号所驱动的行位于远端,否则确定当前所述行驱动信号所驱动的行位于近端。
当所述处理器隔行提供驱动信号,对显示像素进行隔行驱动时,所述处理器根据计数器的计数结果,当计数值位于一预设范围内时,确定当前所述行驱动信号所驱动的行位于远端,否则确定当前所述行驱动信号所驱动的行位于近端。
当处理器控制行驱动模块12对显示像素进行逐行驱动时,确定第一预设阈值。该第一预设阈值为近端远端判断时的预设行数量。以1000行显示像素为例,假设把靠近数据驱动模块13的第1-500行显示像素作为近端的显示像素,其余的显示像素作为远端的显示像素。因此,当计数值大于500时,确定当前行驱动信号已经驱动至远端的显示像素;当计数值小于或等于500时,确定当前行驱动信号仍然驱动近端的显示像素。
同理,当处理器控制行驱动模块12对显示像素进行逆序逐行驱动时,处理器根据计数器的计数结果,当计数值大于第一预设阈值时,确定当前行驱动信号所驱动的行位于近端;当计数值小于或等于第一预设阈值时,确定当前行驱动信号驱动的行位于远端。
当处理器行驱动模块12对显示像素进行隔行驱动时,确定第二预设阈值。该第二预设阈值为近端远端判断时的预设行数量的1/2。以1000行显示像素为例,假设把靠近数据驱动模块13的第1-500行显示像素作为近端的显示像素,其余的显示像素作为远端的显示像素。因此,当计数值位于250-500,以及750-1000内时,确定当前行驱动信号已经驱动至远端的显示像素;当计数值位于1-250(不含),以及501-750(不含)时,确定当前行驱动信号仍然驱动近端的显示像素。
基于上述实施例,本申请实施例还可以进行其他形式的变形,例如将所有行的显示像素划分为三个以上的区域,针对该多个区域对应输出不同的数据信号,以保证所有显示像素的驱动效果。
应当注意的是,在权利要求中,不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的部件或步骤。位于部件之前的单词“一”或“一个”不排除存在多个这样的部件。本申请可以借助于包括有若干不同部件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中,这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
尽管已描述了本申请的可选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括可选实施例以及落入本申请范围的所有变更和修改。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。
Claims (20)
- 一种显示驱动方法,其中,包括以下步骤:周期性地输出行驱动信号,对每一行的显示像素进行驱动;获取当前所述行驱动信号所驱动的行的位置,并判断当前所述行驱动信号所驱动的行位于近端还是远端;若当前所述行驱动信号所驱动的行位于近端时,则输出第一数据信号;以及,若当前所述行驱动信号所驱动的行位于远端时,则输出第二数据信号;其中,所有行的显示像素中,距离所述行驱动信号的信号输出源预设行数量的显示像素为近端,其余行的显示像素为远端。
- 如权利要求1所述的显示驱动方法,其中,所述显示驱动方法还包括:每完成一行显示像素的驱动,则进行计数,以根据该计数结果获取当前所述行驱动信号所驱动的行的位置。
- 如权利要求2所述的显示驱动方法,其中,当顺序逐行提供行驱动信号时,所述获取当前所述行驱动信号所驱动的行的位置的步骤包括:当计数值大于一预设行数量时,确定当前所述行驱动信号所驱动的行位于远端;当计数值小于或等于该预设行数量时,确定当前所述行驱动信号所驱动的行位于近端。
- 如权利要求2所述的显示驱动方法,其中,当逆序逐行提供行驱动信号时,所述获取当前所述行驱动信号所驱动的行的位置的步骤包括:当计数值大于一预设行数量时,确定当前所述行驱动信号所驱动的信号的行位于近端;当计数值小于或等于该预设行数量时,确定当前所述行驱动信号所驱动的信号的行位于远端。
- 如权利要求1所述的显示驱动方法,其中,所述预设行数量根据所有显示像素的行数量的预设比例来设置。
- 如权利要求5所述的显示驱动方法,其中,所述预设比例为50%。
- 如权利要求1所述的显示驱动方法,其中,所述第一数据信号的幅值小于第二数据信号的幅值。
- 一种显示驱动装置,其中,包括:行驱动模块,周期性地输出行驱动信号,对每一行的显示像素进行驱动;驱动控制器,输出驱动控制信号,控制所述行驱动模块进行扫描,同时获取当前所述行驱动信号所驱动的行的位置,并确定当前所述行驱动信号所驱动的行位于近端还是远端;数据驱动模块,根据所述驱动控制器的位置确定结果,在当前所述行驱动信号所驱动的行位于近端时,产生第一数据信号,在当前所述行驱动信号所驱动的行位于远端时,输出第二数据信号;其中,所有行的显示像素中,距离所述行驱动信号的信号输出源预设行数量的显示像素为近端,其余行的显示像素为远端。
- 如权利要求8所述的显示驱动装置,其中,所述驱动控制器包括计数器和处理器,在所述行驱动模块每完成一行显示像素的驱动时,计数一次;所述处理器根据该计数结果确定当前所述行驱动信号所驱动的行位置,并产生对应的驱动控制信号,来控制所述数据驱动模块输出对应的数据信号。
- 如权利要求9所述的显示驱动装置,其中,所述驱动控制信号为一位状态码。
- 如权利要求8所述的显示驱动装置,其中,所述数据驱动模块包括:伽马电压产生单元,在当前所述行驱动信号所驱动的行位于近端时,产生第一伽马信号;在当前所述行驱动信号所驱动的行位于远端时,产生第二伽马信号;数据驱动单元,根据伽马电压产生单元产生的伽马信号,输出对应的数据信号。
- 如权利要求11所述的显示驱动装置,其中,第一数据信号的幅值小于第二数据信号的幅值。
- 如权利要求9所述的显示驱动装置,其中,当所述处理器顺序逐行提供驱动信号,对显示像素进行逐行驱动时,所述处理器根据所述计数器的计数结果,当计数值大于一预设行数量时,确定当前所述行驱动信号所驱动的行位于远端,否则确定当前所述行驱动信号所驱动的行位于近端。
- 如权利要求9所述的显示驱动装置,其中,当所述处理器逆序逐行提供驱动信号,对显示像素进行逐行驱动时,所述处理器根据所述计数器的计数结果,当计数值小于或等于所述预设行数量时,确定当前所述行驱动信号所驱动的行位于远端,否则确定当前所述行驱动信号所驱动的行位于近端。
- 如权利要求8所述的显示驱动装置,其中,所述预设行数量根据所有显示像素的行数量的预设比例来设置。
- 如权利要求15所述的显示驱动装置,其中,所述预设比例为50%。
- 一种显示装置,其中,包括显示像素以及驱动所述显示像素点亮的显示驱动装置,该显示驱动装置包括:行驱动模块,周期性地输出行驱动信号,对每一行的显示像素进行驱动;驱动控制器,输出驱动控制信号,控制所述行驱动模块进行扫描,同时获取当前所述行驱动信号所驱动的行的位置,并确定当前所述行驱动信号所驱动的行位于近端还是远端;数据驱动模块,根据所述驱动控制器的位置确定结果,在当前所述行驱动信号所驱动的行位于近端时,产生第一数据信号,在当前所述行驱动信号所驱动的行位于远端时,输出第二数据信号;其中,所有行的显示像素中,距离所述行驱动信号的信号输出源预设行数量的显示像素为近端,其余行的显示像素为远端。
- 如权利要求17所述的显示装置,其中,所述驱动控制器包括计数器和处理器,在所述行驱动模块每完成一行显示像素的驱动时,计数一次;所述处理器根据该计数结果确定当前所述行驱动信号所驱动的行位置,并产生对应的驱动控制信号,来控制所述数据驱动模块输出对应的数据信号。
- 如权利要求18所述的显示装置,其中,所述驱动控制信号为一位状态码。
- 如权利要求17所述的显示装置,其中,所述数据驱动模块包括:伽马电压产生单元,在当前所述行驱动信号所驱动的行位于近端时,产生第一伽马信号;在当前所述行驱动信号所驱动的行位于远端时,产生第二伽马信号;数据驱动单元,根据伽马电压产生单元产生的伽马信号,输出对应的数据信号。
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| CN108510956A (zh) * | 2018-05-02 | 2018-09-07 | 京东方科技集团股份有限公司 | 显示面板的图像显示亮度调节方法、装置及显示装置 |
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