WO2020062396A1 - 一种显示面板的驱动方法和驱动系统 - Google Patents
一种显示面板的驱动方法和驱动系统 Download PDFInfo
- Publication number
- WO2020062396A1 WO2020062396A1 PCT/CN2018/112858 CN2018112858W WO2020062396A1 WO 2020062396 A1 WO2020062396 A1 WO 2020062396A1 CN 2018112858 W CN2018112858 W CN 2018112858W WO 2020062396 A1 WO2020062396 A1 WO 2020062396A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- input voltage
- compensation
- sub
- driving
- voltage
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2003—Display of colours
-
- 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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
-
- 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
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
-
- 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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/068—Adjustment of display parameters for control of viewing angle adjustment
-
- 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
- G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
Definitions
- the present application relates to the field of display technology, and in particular, to a driving method and a driving system for a display panel.
- the displays using active switch control include liquid crystal displays, organic light-emitting diode (OLED) displays, and the like.
- the liquid crystal display has many advantages such as a thin body, power saving, and no radiation, and has been widely used.
- the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates, and apply a driving voltage to 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.
- OLED displays have many advantages such as self-luminous, short response time, high definition and contrast, flexible display and large-area full-color display. Its superior performance and huge market potential have attracted many manufacturers and research institutions around the world to invest in the production and research and development of OLED display panels.
- Chroma viewing angle as an important indicator of image quality is an important direction for VA panel manufacturers.
- the present application can greatly improve the panel aperture ratio and chromaticity viewing angle by processing the displayed image.
- a display panel with a higher resolution results in a lower transmittance.
- the purpose of the present application is to provide a driving method and a driving system for a display panel, so as to solve the problem of low-transmissivity based on the role of large viewing angles.
- the present application provides a driving method of a display panel, where the display panel includes multiple pixels, the pixels include multiple sub-pixels, and the driving method includes:
- the driving voltage includes a first driving voltage or a second driving voltage, the first driving voltage is greater than the input voltage, and the second driving voltage is less than the input Voltage; the input voltage is a voltage required by the corresponding sub-pixel for normal display.
- the present application also discloses a driving method of a display panel.
- the display panel includes a plurality of pixels, and the pixels include a plurality of sub-pixels.
- the driving method includes:
- the driving voltage includes a first driving voltage or a second driving voltage, the first driving voltage is greater than the input voltage, and the second driving voltage is less than the input Voltage; the input voltage is a voltage required by the corresponding sub-pixel for normal display;
- Two adjacent sub-pixels belong to two different compensation areas
- the method for obtaining the compensation coefficient includes:
- the hue difference between the minimum compensation coefficients of the sub-pixels corresponding to different colors is 120 °; when the maximum color tone corresponds to red, if the green color tone is greater than the blue color tone, the minimum compensation coefficient corresponds to 0 °; if blue Color tone is greater than green tone, the minimum compensation coefficient corresponds to 360 °
- the present application also discloses a driving system for a display panel.
- the display panel includes:
- a sub-pixel the pixel including a plurality of sub-pixels
- the driving system includes:
- Zoning circuit divides two types of compensation areas in sub-pixel units
- Calculation circuit output driving voltage according to the compensation area to which the sub-pixel belongs;
- the driving voltage includes a first driving voltage or a second driving voltage, the first driving voltage is greater than the input voltage, and the second driving voltage is less than the input Voltage; the input voltage is a voltage required by the corresponding sub-pixel for normal display.
- the inventor's research found that with a sub-pixel-based partition control method, the sub-pixel electrodes need to be partitioned and isolated to form two independent, mutually conductive regions. As a result, a weak electric field region is formed between the two partitions, and the transmittance is reduced.
- the present application performs partition compensation in units of sub-pixels, and there is no need to divide the sub-pixels. Therefore, a single sub-pixel is a complete electric field, thereby improving the transmittance.
- each pixel includes multiple sub-pixels, as long as there are different partitions input between the two sub-pixels, the first driving voltage corresponding to one partition is larger than the input voltage, and the second driving voltage corresponding to the other partition is smaller than the input voltage. The curves of the two driving voltages are mixed, and a nearly linear display effect can still be obtained, so as to improve the role of the large viewing role.
- FIG. 1 is a characteristic curve diagram of voltage and transmittance of the present application
- FIG. 2 is a schematic diagram of a sub-pixel partition compensation method according to the present application.
- FIG. 3 is a schematic flowchart of a driving method according to an embodiment of the present application.
- FIG. 4 is a schematic diagram of a compensation partition of a driving method according to an embodiment of the present application.
- FIG. 5 is a schematic flowchart of another driving method according to an embodiment of the present application.
- FIG. 6 is a schematic flowchart of another driving method according to an embodiment of the present application.
- FIG. 7 is a schematic diagram of values of a compensation coefficient based on green according to an embodiment of the present application.
- FIG. 8 is a schematic flowchart of another driving method according to an embodiment of the present application.
- FIG. 9 is a schematic diagram of a driving system of a display panel according to an embodiment of the present application.
- FIG. 10 is a schematic diagram of a calculation circuit according to an embodiment of the present application.
- FIG. 11 is a schematic diagram of another calculation circuit according to an embodiment of the present application.
- FIG. 12 is a schematic diagram of a gamma compensation curve according to an embodiment of the present application.
- FIG. 13 is a schematic diagram of a gamma compensation curve based on white balance according to an embodiment of the present application.
- FIG. 14 is a schematic diagram of table-based gamma compensation according to an embodiment of the present application.
- FIG. 15 is a schematic diagram of three types of gamma compensation according to an embodiment of the present application.
- VA Very Alignment Vertical Alignment Technology
- chromaticity and viewing angle are an important indicator of picture quality for various panel manufacturers.
- the present application can greatly improve the panel aperture ratio and chromaticity viewing angle by processing the displayed image. Generally, when the viewing angle of the display panel exceeds 45 °, the picture becomes white.
- the reason why the display panel is white is that under a large viewing angle, the V-T curve drift causes the picture contrast to decrease, and the phenomenon of whiteness appears:
- each sub-pixel is divided into two parts A and B, and the purpose of using A and B to achieve a green curve close to linearity is to improve the role of large viewing roles, but in the case of increased resolution, the pixels are partitioned like this Will result in reduced penetration.
- an embodiment of the present application discloses a method for driving a display panel.
- the display panel includes a plurality of pixels, and the pixels include a plurality of sub-pixels.
- the driving method includes:
- the driving voltage includes a first driving voltage or a second driving voltage, the first driving voltage is greater than the input voltage, and the second driving voltage is less than the input Voltage; the input voltage is a voltage required by the corresponding sub-pixel for normal display.
- the inventor's research found that with a sub-pixel-based partition control method, the sub-pixel electrodes need to be partitioned and isolated to form two independent, mutually conductive regions. As a result, a weak electric field region is formed between the two partitions, and the transmittance is reduced.
- the present application performs partition compensation in units of sub-pixels, and there is no need to divide the sub-pixels. Therefore, a single sub-pixel is a complete electric field, thereby improving the transmittance.
- each pixel includes multiple sub-pixels, as long as there are different partitions input between the two sub-pixels, the first driving voltage corresponding to one partition is larger than the input voltage, and the second driving voltage corresponding to the other partition is smaller than the input voltage. The curves of the two driving voltages are mixed, and a nearly linear display effect can still be obtained, so as to improve the role of the large viewing role.
- each pixel 100 includes three types of red, green, and blue sub-pixels.
- the primary sub-pixel 110 and the secondary sub-pixel 120 in the figure respectively correspond to two different compensation regions.
- the step of outputting a compensation voltage according to a compensation area to which a sub-pixel includes includes:
- a first input voltage Vb is formed after the input voltage Vin passes the first gamma correction.
- Each display panel requires gamma correction, so the driving voltage is formed on the basis of the gamma correction, and the implementation is relatively simple.
- the first input voltage represents the original gamma-corrected driving voltage, and as a reference, the fourth input voltage calculated by the present application is used for comprehensive calculation, and the compensation effect is closer to the actual situation, which can effectively improve the compensation effect.
- the step of outputting a compensation voltage according to a compensation area to which a sub-pixel includes includes:
- the fourth input voltage Vb is subjected to the second gamma correction to form the driving voltage Vout.
- Each display panel is corrected by horses. First, the input voltage is corrected for the first gamma, and the input voltage is compensated. Since the collected data is relatively initial data, the accuracy is high, and then the second gamma is performed. Correction can effectively improve the compensation effect.
- the compensation scheme includes:
- the fourth input voltage is multiplied by the compensation coefficient H_gain, and the first input voltage is multiplied by (H_gain) to obtain the driving voltage; where 1> H_gain> 0.
- the compensation coefficient is less than 1.
- the weights of the first input voltage and the fourth input voltage can be adjusted according to the actual situation, which is convenient for later debugging and modification to improve the compensation effect.
- the compensation scheme includes a method for obtaining a compensation coefficient:
- the hue difference between the minimum compensation coefficients between the sub-pixels corresponding to different colors is 120 °.
- the hue correction corresponding to different colors is not the same, and the color corresponding to the sub-pixel with the largest hue has the greatest influence on the display effect of the entire pixel. Therefore, determining the compensation coefficient based on the sub-pixels of the color corresponding to the maximum hue can minimize the compensation error and improve the display effect.
- This solution is applicable to the pixel structure corresponding to the three primary colors. It is calculated according to 360 °, and each color differs by 120 ° to facilitate the value of the compensation coefficient.
- the minimum compensation coefficient when the maximum hue corresponds to red, if the green hue is greater than the blue hue, the minimum compensation coefficient corresponds to 0 °; if the blue hue is greater than the green hue, the minimum compensation coefficient corresponds to 360 °.
- the sub-pixel corresponding to red is located at the edge of each pixel, and its display effect has an impact on two adjacent pixels. Therefore, it is necessary to comprehensively consider the hue of the sub-pixels on both sides to improve the compensation effect.
- a compensation coefficient H_gain corresponding to a different hue is output.
- the step of outputting the compensation voltage according to the compensation area to which the sub-pixel includes includes:
- the second input voltage is selected as the first driving voltage, or the third input voltage is selected as the second driving voltage.
- Each display panel needs gamma correction, so two types of driving voltages with different sizes are formed directly based on the gamma correction, and the implementation is relatively simple.
- a driving method of a display panel includes a plurality of pixels, and the pixels include a plurality of sub-pixels.
- the driving method includes:
- the driving voltage includes a first driving voltage or a second driving voltage, the first driving voltage is greater than the input voltage, and the second driving voltage is less than the input Voltage; the input voltage is a voltage required by the corresponding sub-pixel for normal display;
- Two adjacent sub-pixels belong to two different compensation areas
- the method for obtaining the compensation coefficient includes:
- the hue difference between the minimum compensation coefficients of the sub-pixels corresponding to different colors is 120 °; when the maximum color tone corresponds to red, if the green color tone is greater than the blue color tone, the minimum compensation coefficient corresponds to 0 °; if blue The color hue is greater than the green hue, so the minimum compensation coefficient corresponds to 360 °.
- a compensation coefficient H_gain corresponding to a different hue is output.
- FIG. 4 and FIG. 9. discloses a driving system for a display panel, the display panel includes:
- the driving system includes:
- Partition circuit 200 divides two types of compensation areas in units of sub-pixels
- Calculation circuit 300 output a driving voltage according to a compensation area to which a sub-pixel belongs;
- the driving voltage includes a first driving voltage or a second driving voltage, the first driving voltage is greater than the input voltage, and the second driving voltage is less than the input Voltage; the input voltage is a voltage required by the corresponding sub-pixel for normal display.
- the calculation circuit includes:
- a gamma circuit 310 connected to the input voltage and outputting a first input voltage
- the first gamma circuit 320 is connected to a first input voltage and outputs a second input voltage
- the second gamma circuit 330 is connected to the first input voltage and outputs a third input voltage; the second input voltage is greater than the third input voltage;
- the first selection circuit 340 is connected to the second input voltage and the third input voltage, and selects and outputs the second input voltage or the third input voltage as the fourth input voltage according to the compensation area to which the sub-pixel belongs.
- the compensation circuit 350 includes:
- Hue calculation circuit 351 connected to the input voltage, and outputting a hue value of a corresponding sub-pixel;
- Compensation coefficient acquisition circuit 352 acquires a hue value from a hue calculation circuit, and outputs a compensation coefficient
- the second selection circuit 360 is connected to the compensation coefficient acquisition circuit, the first input voltage and the fourth input voltage, respectively, and outputs the driving voltage.
- the hue correction corresponding to different colors is not the same, and the color corresponding to the sub-pixel with the largest hue has the greatest influence on the display effect of the entire pixel. Therefore, determining the compensation coefficient based on the sub-pixels of the color corresponding to the maximum hue can minimize the compensation error and improve the display effect.
- Gamma circuit 310 a commonly used white balance circuit element in a timing control circuit (TCON). The main purpose is to adjust the color coordinates of the panel to achieve the desired color coordinates.
- the first gamma circuit 320 stores a table circuit of the input-output correspondence between the main sub-pixels.
- the second gamma circuit 330 stores a table circuit of the input-output correspondence relationship of the sub-pixels.
- the first selection circuit 340 selects Vh or Vl according to the arrangement manner of the main sub-pixel and the sub-pixel described in FIG. 3, wherein the main sub-pixel selects Vh and the sub-pixel selects V1.
- the formula for the hue calculation circuit 351 to calculate the hue H is as follows:
- the compensation coefficient acquisition circuit outputs compensation coefficients H_gain corresponding to different tones according to the hue H.
- the second selection circuit obtains the result of the circuit according to the compensation coefficient and determines the weight of Va and Vb according to the H_gain factor.
- the difference from FIG. 8 is that the gamma circuit is moved to the output terminal of the second selection circuit.
- Each display panel requires gamma correction.
- the input voltage is first corrected for gamma, and the input voltage is used for compensation. Since the collected data is relatively initial, the accuracy is high, and then the second gamma is performed. Horse correction can effectively improve the compensation effect.
- the main function of the gamma circuit is shown in Figure 12 to Figure 14 below.
- the R, G, and B lookup tables are used to adjust the color coordinates of the white point on the panel.
- the hardware architecture of the first gamma circuit is also similar to the gamma circuit, and the grayscale values corresponding to the main subpixels higher than the display grayscale are obtained through three look-up tables of R, G, and B.
- the hardware architecture of the second gamma circuit is also similar to the gamma circuit.
- the grayscale values corresponding to the sub-pixels below the display grayscale are obtained through three lookup tables of R, G, and B.
- the R, G, and B lookup tables of the first gamma circuit and the R, G, and lookup tables of the second gamma circuit need to follow the rules.
- the target curve is 2.2 for example.
- the table and the second lookup table are mixed into a target gamma curve.
- the panel of the present application may be a TN panel (full name is Twisted Nematic, that is, a twisted nematic panel), an IPS panel (In-Plane Switching, planar conversion), a VA panel (Vertical alignment technology), and an MVA panel (Multi- domain (Vertica, Aignment, multi-quadrant vertical alignment technology), of course, other types of panels can also be used.
- TN panel full name is Twisted Nematic, that is, a twisted nematic panel
- IPS panel In-Plane Switching, planar conversion
- VA panel Very alignment technology
- MVA panel Multi- domain (Vertica, Aignment, multi-quadrant vertical alignment technology)
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
一种显示面板的驱动方法和驱动系统。驱动方法包括:以子像素为单位,划分两种补偿区(S41);根据子像素所属的补偿区输出驱动电压(S42)。
Description
本申请要求于2018年9月30日提交中国专利局、申请号为CN201811160500.6、发明名称为“一种显示面板的驱动方法和驱动系统”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。
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系统。
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。
采用主动开关控制的显示器包括液晶显示器、机发光二极管(Organic Light-Emitting Diode,OLED)显示器等。液晶显示器具有机身薄、省电、无辐射等众多优点,得到了广泛的应用。其中,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。OLED显示器则具有自发光、响应时间短、清晰度与对比度高、可实现柔性显示与大面积全色显示等诸多优点。其优越性能和巨大的市场潜力,吸引了全世界众多厂家和科研机构投入到OLED显示面板的生产和研发中。
随着液晶显示领域的发展,更高的画质已经成为各大显示厂商的主要指标,色度可视角作为画质的一个重要指标为VA type各家面板厂努力的一个重要的方向。本申请通过对显示图像的处理可以大幅度提高面板开口率及色度可视角。显示面板在分辨率提高的情况下会导致穿透率降低。
本申请目的是提供一种显示面板的驱动方法和驱动系统,以解决大视角色偏的基础上穿透率低。
为实现上述目的,本申请提供了一种显示面板的驱动方法,所述显示面板包括多个像素,所述像素包括多个子像素;所述驱动方法包括:
以子像素为单位,划分两种补偿区;
根据子像素所属的补偿区输出驱动电压;
所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压。
本申请还公开了一种显示面板的驱动方法,所述显示面板包括多个像素,所述像素包括多个子像素;所述驱动方法包括:
以子像素为单位,划分两种补偿区;
将输入电压通过第一次伽马校正后形成第一输入电压;
将第一输入电压通过第二次伽马校正后形成所述第二输入电压和第三输入电压;所述第二输入电压大于所述第三输入电压;
根据子像素所属的补偿区选择输出第二输入电压或者第三输入电压作为第四输入电压;
将第四输入电压乘于补偿系数H_gain,再加上第一输入电压乘于(H_gain),得到所述驱动电压;其中,1>H_gain>0;
所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压;
相邻的两个子像素分别属于两种不同的补偿区;
所述补偿系数获取方法包括:
基于最大色调对应颜色的所述子像素来确定所述补偿系数;
与不同颜色对应的所述子像素之间的最小补偿系数之间的色调相差120°;当最大色调对应为红色时,如果绿色色调大于蓝色色调,则最小补偿系数对应为0°;如果蓝色色调大于绿色色调,则最小补偿系数对应为360°
本申请还公开了一种显示面板的驱动系统,所述显示面板包括:
多个像素;
子像素,所述像素包括多个子像素;
所述驱动系统包括:
分区电路:以子像素为单位,划分两种补偿区;
计算电路:根据子像素所属的补偿区输出驱动电压;
所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压。
发明人研究发现,具有基于子像素的分区控制方式,需要对子像素电极进行分区隔离,形成两个独立的、互相导电的区域。从而在两个分区之间形成弱电场区域,降低了穿透率。本申请以子像素为单位进行分区补偿,无须划分子像素,因此单个子像素内是一个完整的电场,从而提高了穿透率。而且考虑到每个像素包 括多个子像素,只要有两个子像素之间输入不同的分区,其中一个分区对应的第一驱动电压大于输入电压,而另一个分区对应的第二驱动电压小于输入电压,两种驱动电压的曲线混合,仍然可以获得近似于线性的显示效果,从而达到改善大视角色偏的目的。
所包括的附图用来提供对本申请实施例的进一步的理解,其构成了说明书的一部分,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是本申请的电压和穿透率的特征曲线示意图;
图2是本申请的一种基于子像素分区补偿方式示意图;
图3是本申请的一实施例的一种驱动方法的流程示意图;
图4是本申请的一实施例的一种驱动方法的补偿分区示意图;
图5是本申请的一实施例的另一种驱动方法的流程示意图;
图6是本申请的一实施例的另一种驱动方法的流程示意图;
图7是本申请的一实施例的基于绿色的补偿系数取值的示意图;
图8是本申请的一实施例的另一种驱动方法的流程示意图;
图9是本申请的一实施例的显示面板的驱动系统的原理示意图;
图10是本申请的一实施例的一种计算电路的原理示意图;
图11是本申请的一实施例的另一种计算电路的原理示意图;
图12是本申请的一实施例的一种伽马补偿曲线的示意图;
图13是本申请的一实施例的基于白平衡的伽马补偿曲线的示意图;
图14是本申请的一实施例的一种基于查表的伽马补偿示意图;
图15是本申请的一实施例的三种伽马补偿的曲线示意图。
本申请的实施方式
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。
随着液晶显示领域的发展,更高的画质已经成为各大显示厂商的主要指标,作为VA(Vertical Alignment垂直配向技术)面板,色度可视角作为画质的一个重要指标为各家面板厂努力的一个重要的方向。本申请通过对显示图像的处理可以大幅度提高面板开口率及色度可视角。一般显示面板在视角超过左右45°时画面偏白的现象就很明显。
参考图1,显示面板偏白的原因为在大视角下,V-T曲线漂移导致画面对比降低,出现偏白的现象:
参考度2,本申请人使用一种未公开的技术方案,解决大视角色偏。以绿色为例,将每个子像素拆分为A和B两部分,在利用A和B混合达到绿色曲线接近线性来改善大视角色偏的目的,但是在分辨率提高的情况下这样对像素分区会导致穿透率降低。
下面结合附图和可选的实施例对本申请作进一步说明。
参考图3,本申请实施例公布了一种显示面板的驱动方法,所述显示面板包括多个像素,所述像素包括多个子像素;所述驱动方法包括:
S31、以子像素为单位,划分两种补偿区;
S32、根据子像素所属的补偿区输出驱动电压;
所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压。
发明人研究发现,具有基于子像素的分区控制方式,需要对子像素电极进行分区隔离,形成两个独立的、互相导电的区域。从而在两个分区之间形成弱电场区域,降低了穿透率。本申请以子像素为单位进行分区补偿,无须划分子像素,因此单个子像素内是一个完整的电场,从而提高了穿透率。而且考虑到每个像素包括多个子像素,只要有两个子像素之间输入不同的分区,其中一个分区对应的第一驱动电压大于输入电压,而另一个分区对应的第二驱动电压小于输入电压,两种驱动电压的曲线混合,仍然可以获得近似于线性的显示效果,从而达到改善大视角色偏的目的。
参考图4,在一实施例中,相邻的两个子像素分别属于两种不同的补偿区。以三原色的像素为例,每个像素100都包括红、绿和蓝三种子像素,图中的主子像素110和次子像素120分别对应两种不同的补偿区。
参考图5和图10,在一实施例中,所述根据子像素所属的补偿区输出补偿电压的步骤包括:
S51、将输入电压Vin通过第一次伽马校正后形成第一输入电压Vb;
S52、将第一输入电压Vout通过第二次伽马校正后形成所述第二输入电压Vh和第三输入电压Vl;所述第二输入电压Vh大于所述第三输入电压Vl;
S53、根据子像素所属的补偿区选择输出第二输入电压Vh或者第三输入电压Vl作为第四输入电压Va;
S54、按预设的补偿方案处理所述第一输入电压Vb和第四输入电压Va得到所述驱动电压。
每个显示面板都需要伽马校正,因此在伽马校正的基础上形成驱动电压,实施方式比较简单。而且第一输入电压代表原有的伽马校正后的驱动电压,以此为参照,结合本申请计算得到的第四输入电压进行综合计算,补偿效果更接近实际情况,可以有效提升补偿效果。
参考图6和图11,在一实施例中,所述根据子像素所属的补偿区输出补偿电压的步骤包括:
S61、将输入电压Vin通过第一次伽马校正后形成所述第一输入Vh电压 和第二输入电压Vl;所述第一输入电压Vh大于所述第二输入电压Vl;
S62、根据子像素所属的补偿区选择输出第一输入电压Vh或者第二输入电压Vl作为第三输入电压Va;
S63、按预设的补偿方案处理所述输入电压Vin和第三输入电压Va得到第四输入电压Vb;
S64、将第四输入电压Vb通过第二次伽马校正后形成所述驱动电压Vout。
每个显示面板都通过马校正,先对输入电压进行第一次伽马校正,结合输入电压进行补偿,由于采集的数据都是比较初始的数据,准确度高,最后再进行第二次伽马校正,可以有效提升补偿效果。
在一实施例中,所述补偿方案包括:
将第四输入电压乘于补偿系数H_gain,再加上第一输入电压乘于(H_gain),得到所述驱动电压;其中,1>H_gain>0。
补偿系数小于1,可以根据实际情况调整第一输入电压和第四输入电压的权重,方便后期调试修改,以提高补偿效果。
在一实施例中,所述补偿方案包括补偿系数获取方法:
基于最大色调对应颜色的所述子像素来确定所述补偿系数;
与不同颜色对应的所述子像素之间的最小补偿系数之间的色调相差120°。
不同颜色对应的色调校正是不一样的,而色调最大的子像素对应的颜色,对整个像素的显示效果影响最大。因此基于最大色调对应颜色的所述子像素来确定所述补偿系数,能最大程度减少补偿误差,提升显示效果。本方案适用三原色对应的像素结构,按360°计算,每种颜色相差120°,方便补偿系数的取值。
在一实施例中,当最大色调对应为红色时,如果绿色色调大于蓝色色调,则最小补偿系数对应为0°;如果蓝色色调大于绿色色调,则最小补偿系数对应为360°。
一般红色对应的子像素位于每个像素的边缘,其显示效果对相邻两个像素都有影响,因此要综合考虑其两侧的子像素色调的情况,提升补偿效果。
计算色调H的公式如下所示:
①If(max(R、G、B)=R)
If(G≥B)
H=60*(G-B)/(max(R、G、B)-min(R、G、B))
If(G<B)
H=360-60*(B-G)/(max(R、G、B)-min(R、G、B))
②If(max(R、G、B)=G)
H=120+60*(B-R)/(max(R、G、B)-min(R、G、B))
③If(max(R、G、B)=B)
H=240+60*(R-G)/(max(R、G、B)-min(R、G、B))
根据色调H输出不同色调对应的补偿系数H_gain。图7所列了一种针对绿色降低Va权重的实例。其中H等于120度代表绿色系,当H=120°时降低H_gain,根据补偿系数获取电路的结果,根据H_gain因子决定Va和Vb的权重
其中Vo=Va*H_gain+Vb*(1-H_gain)
在一实施例中,所述根据子像素所属的补偿区输出补偿电压的步骤包括:
将输入电压通过第一次伽马校正后形成第一输入电压;
将第一输入电压通过第二次伽马校正后形成所述第二输入电压和第三输入电压;
根据子像素所属的补偿区选择输出第二输入电压作为第一驱动电压,或者选择第三输入电压作为第二驱动电压。
每个显示面板都需要伽马校正,因此直接利用伽马校正的基础上形成大小不同的两种驱动电压,实施方式比较简单。
作为本申请的另一实施例,参考图8所示,公开了一种显示面板的驱动方法,所述显示面板包括多个像素,所述像素包括多个子像素;所述驱动方法包括:
S81、以子像素为单位,划分两种补偿区;
S82、将输入电压通过第一次伽马校正后形成第一输入电压;
S83、将第一输入电压通过第二次伽马校正后形成所述第二输入电压和第三输入电压;所述第二输入电压大于所述第三输入电压;
S84、根据子像素所属的补偿区选择输出第二输入电压或者第三输入电压作为第四输入电压;
S85、将第四输入电压乘于补偿系数H_gain,再加上第一输入电压乘于(H_gain),得到所述驱动电压;其中,1>H_gain>0;
所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压;
相邻的两个子像素分别属于两种不同的补偿区;
所述补偿系数获取方法包括:
基于最大色调对应颜色的所述子像素来确定所述补偿系数;
与不同颜色对应的所述子像素之间的最小补偿系数之间的色调相差120°;当最大色调对应为红色时,如果绿色色调大于蓝色色调,则最小补偿系数对应为0°;如果蓝色色调大于绿色色调,则最小补偿系数对应为360°。
计算色调H的公式如下所示:
①If(max(R、G、B)=R)
If(G≥B)
H=60*(G-B)/(max(R、G、B)-min(R、G、B))
If(G<B)
H=360-60*(B-G)/(max(R、G、B)-min(R、G、B))
②If(max(R、G、B)=G)
H=120+60*(B-R)/(max(R、G、B)-min(R、G、B))
③If(max(R、G、B)=B)
H=240+60*(R-G)/(max(R、G、B)-min(R、G、B))
根据色调H输出不同色调对应的补偿系数H_gain。图7所列了一种针对绿色降低Va权重的实例。其中H等于120度代表绿色系,当H=120°时降低H_gain,根据补偿系数获取电路的结果,根据H_gain因子决定Va和Vb的权重
其中Vo=Va*H_gain+Vb*(1-H_gain)
作为本申请的另一实施例,参考图4和图9所示。本实施方式公开一种显示面板的驱动系统,所述显示面板包括:
多个像素100,
子像素100,所述像素包括多个子像素110;
所述驱动系统包括:
分区电路200:以子像素为单位,划分两种补偿区;
计算电路300:根据子像素所属的补偿区输出驱动电压;
所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压。
参考图10,在一实施例中,所述计算电路包括:
伽马电路310,连接所述输入电压,输出第一输入电压;
第一伽马电路320,连接第一输入电压,输出第二输入电压;
第二伽马电路330,连接第一输入电压,输出第三输入电压;所述第二 输入电压大于所述第三输入电压;
第一选择电路340,连接第二输入电压和第三输入电压,根据子像素所属的补偿区选择输出第二输入电压或者第三输入电压作为第四输入电压;
补偿电路350,包括:
色调计算电路351:连接所述输入电压,输出对应子像素的色调值;
补偿系数获取电路352;从色调计算电路获取色调值,输出补偿系数;
第二选择电路360,分别连接补偿系数获取电路、第一输入电压和第四输入电压,输出所述驱动电压。
不同颜色对应的色调校正是不一样的,而色调最大的子像素对应的颜色,对整个像素的显示效果影响最大。因此基于最大色调对应颜色的所述子像素来确定所述补偿系数,能最大程度减少补偿误差,提升显示效果。
伽马电路310:时序控制电路(TCON)内部常用的白平衡电路元件,主要的目的为调整面板的色坐标达到期望的色坐标。
第一伽马电路320,里面存储有主子像素的输入输出对应关系的表电路。
第二伽马电路330,里面存储有次子像素的输入输出对应关系的表电路。
第一选择电路340,按照图3所描述的主子像素和次子像素的排列方式选择Vh或者Vl,其中主子像素选择Vh,次子像素选择选择Vl。
色调计算电路351计算色调H的公式如下所示:
①If(max(R、G、B)=R)
If(G≥B)
H=60*(G-B)/(max(R、G、B)-min(R、G、B))
If(G<B)
H=360-60*(B-G)/(max(R、G、B)-min(R、G、B))
②If(max(R、G、B)=G)
H=120+60*(B-R)/(max(R、G、B)-min(R、G、B))
③If(max(R、G、B)=B)
H=240+60*(R-G)/(max(R、G、B)-min(R、G、B))
补偿系数获取电路根据色调H输出不同色调对应的补偿系数H_gain。图7所列了一种针对绿色降低Va权重的实例。其中H等于120度代表绿色系,当H=120°时降低H_gain,第二选择电路根据补偿系数获取电路的结果,根据H_gain因子决定Va和Vb的权重
其中Vo=Va*H gain+Vb*(1-H gain)
参考图11,在一实施例中,跟图8区别在于,将伽马电路移到第二选择电路的输出端。
每个显示面板都需要伽马校正,先对输入电压进行第一次伽马校正,结合输入电压进行补偿,由于采集的数据都是比较初始的数据,准确度高,最后再进行第二次伽马校正,可以有效提升补偿效果。
伽马电路的主要功能,如下图12至图14所示,通过R、G、B三个查找表来调整面板白点色坐标。
第一伽马电路的硬件架构也类似伽马电路,通过R、G、B三个查找表得到主子像素对应的高于显示灰阶的灰阶值。
第二伽马电路的硬件架构也类似伽马电路,通过R、G、B三个查找表得到次子像素对应的低于显示灰阶的灰阶值。
其中,第一伽马电路的R、G、B查找表和第二伽马电路的R、G、查找表需要遵循的规则为,参考图15,以目标曲线为2.2举例说明,通过第一查找表和第二查找表混合成目标伽马曲线。
本申请的面板可以是TN面板(全称为Twisted Nematic,即扭曲向列型面板)、IPS面板(In-Plane Switching,平面转换)、VA面板(Vertical Alignment,垂直配向技术)、MVA面板(Multi-domain Vertica Aignment,多象限垂直配向技术),当然,也可以是其他类型的面板,适用即可。
以上内容是结合具体的可选实施方式对本申请所作的进一步详细说明,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 (17)
- 一种显示面板的驱动方法,所述显示面板包括多个像素,所述像素包括多个子像素;所述驱动方法包括:以子像素为单位,划分两种补偿区;根据子像素所属的补偿区输出驱动电压;所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压。
- 如权利要求1所述的显示面板的驱动方法,其中,相邻的两个子像素分别属于两种不同的补偿区。
- 如权利要求1所述的显示面板的驱动方法,其中,所述根据子像素所属的补偿区输出补偿电压的步骤包括:将输入电压通过第一次伽马校正后形成第一输入电压;将第一输入电压通过第二次伽马校正后形成所述第二输入电压和第三输入电压;所述第二输入电压大于所述第三输入电压;根据子像素所属的补偿区选择输出第二输入电压或者第三输入电压作为第四输入电压;按预设的补偿方案处理所述第一输入电压和第四输入电压得到所述驱动电压。
- 如权利要求1所述的显示面板的驱动方法,其中,所述根据子像素所属的补偿区输出补偿电压的步骤包括:将输入电压通过第一次伽马校正后形成所述第一输入电压和第二输入电压;所述第一输入电压大于所述第二输入电压;根据子像素所属的补偿区选择输出第一输入电压或者第二输入电压作为第三输入电压;按预设的补偿方案处理所述输入电压和第三输入电压得到第四输入电压;将第四输入电压通过第二次伽马校正后形成所述驱动电压。
- 如权利要求3所述的显示面板的驱动方法,其中,所述补偿方案包括:将第四输入电压乘于补偿系数H_gain,再加上第一输入电压乘于(H_gain),得到所述驱动电压;其中,1>H_gain>0。
- 如权利要求5所述的显示面板的驱动方法,其中,所述补偿方案包括补偿系数获取方法:基于最大色调对应颜色的所述子像素来确定所述补偿系数;与不同颜色对应的所述子像素之间的最小补偿系数之间的色调相差120°。
- 如权利要求6所述的显示面板的驱动方法,其中,当最大色调对应为红色时,如果绿色色调大于蓝色色调,则最小补偿系数对应为0°;如果蓝色色调大于绿色色调,则最小补偿系数对应为360°。
- 一种显示面板的驱动方法,所述显示面板包括多个像素,所述像素包括多个子像素;所述驱动方法包括:以子像素为单位,划分两种补偿区;将输入电压通过第一次伽马校正后形成第一输入电压;将第一输入电压通过第二次伽马校正后形成所述第二输入电压和第三输入电压;所述第二输入电压大于所述第三输入电压;根据子像素所属的补偿区选择输出第二输入电压或者第三输入电压作为第四输入电压;将第四输入电压乘于补偿系数H_gain,再加上第一输入电压乘于(H_gain),得到所述驱动电压;其中,1>H_gain>0;所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入电压;所述输入电压为相应子像素正常显示所需的电压;相邻的两个子像素分别属于两种不同的补偿区;所述补偿系数获取方法包括:基于最大色调对应颜色的所述子像素来确定所述补偿系数;与不同颜色对应的所述子像素之间的最小补偿系数之间的色调相差120°;当最大色调对应为红色时,如果绿色色调大于蓝色色调,则最小补偿系数对应为0°;如果蓝色色调大于绿色色调,则最小补偿系数对应为360°。
- 一种显示面板的驱动系统,所述显示面板包括:多个像素,子像素,所述像素包括多个子像素;所述驱动系统包括:分区电路:以子像素为单位,划分两种补偿区;以及计算电路:根据子像素所属的补偿区输出驱动电压;所述每个像素中至少有两个子像素属于不同的补偿区;所述驱动电压包括第一驱动电压或第二驱动电压,所述第一驱动电压大于输入电压;所述第二驱动电压小于输入 电压;所述输入电压为相应子像素正常显示所需的电压。
- 如权利要求9所述的显示面板的驱动系统,其中,所述计算电路包括:伽马电路,连接所述输入电压,输出第一输入电压;第一伽马电路,连接第一输入电压,输出第二输入电压;第二伽马电路,连接第一输入电压,输出第三输入电压;所述第二输入电压大于所述第三输入电压;第一选择电路,连接第二输入电压和第三输入电压,根据子像素所属的补偿区选择输出第二输入电压或者第三输入电压作为第四输入电压;补偿电路,包括:色调计算电路:连接所述输入电压,输出对应子像素的色调值;补偿系数获取电路;从色调计算电路获取色调值,输出补偿系数;第二选择电路,分别连接补偿系数获取电路、第一输入电压和第四输入电压,输出所述驱动电压。
- 如权利要求9所述的显示面板的驱动系统,其中,相邻的两个子像素分别属于两种不同的补偿区。
- 如权利要求9所述的显示面板的驱动系统,其中,所述计算电路被配置为:将输入电压通过第一次伽马校正后形成第一输入电压;将第一输入电压通过第二次伽马校正后形成所述第二输入电压和第三输入电压;所述第二输入电压大于所述第三输入电压;根据子像素所属的补偿区选择输出第二输入电压或者第三输入电压作为第四输入电压;按预设的补偿方案处理所述第一输入电压和第四输入电压得到所述驱动电压。
- 如权利要求9所述的显示面板的驱动系统,其中,所述计算电路被配置为:将输入电压通过第一次伽马校正后形成所述第一输入电压和第二输入电压;所述第一输入电压大于所述第二输入电压;根据子像素所属的补偿区选择输出第一输入电压或者第二输入电压作为第三输入电压;按预设的补偿方案处理所述输入电压和第三输入电压得到第四输入电压;将第四输入电压通过第二次伽马校正后形成所述驱动电压。
- 如权利要求9所述的显示面板的驱动系统,其中,所述计算电路被配置为:将输入电压通过第一次伽马校正后形成第一输入电压;将第一输入电压通过第二次伽马校正后形成所述第二输入电压和第三输入电压;根据子像素所属的补偿区选择输出第二输入电压作为第一驱动电压,或者选择第三输入电压作为第二驱动电压。
- 如权利要求12所述的显示面板的驱动系统,其中,所述补偿方案包括:将第四输入电压乘于补偿系数H_gain,再加上第一输入电压乘于(H_gain),得到所述驱动电压;其中,1>H_gain>0。
- 如权利要求15所述的显示面板的驱动系统,其中,所述补偿方案包括补偿系数获取方法:基于最大色调对应颜色的所述子像素来确定所述补偿系数;与不同颜色对应的所述子像素之间的最小补偿系数之间的色调相差120°。
- 如权利要求16所述的显示面板的驱动系统,其中,当最大色调对应为红色时,如果绿色色调大于蓝色色调,则最小补偿系数对应为0°;如果蓝色色调大于绿色色调,则最小补偿系数对应为360°。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/982,033 US11450259B2 (en) | 2018-09-30 | 2018-10-31 | Driving method and driving system for display panel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811160500.6A CN109256100B (zh) | 2018-09-30 | 2018-09-30 | 一种显示面板的驱动方法和驱动系统 |
CN201811160500.6 | 2018-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020062396A1 true WO2020062396A1 (zh) | 2020-04-02 |
Family
ID=65045057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2018/112858 WO2020062396A1 (zh) | 2018-09-30 | 2018-10-31 | 一种显示面板的驱动方法和驱动系统 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11450259B2 (zh) |
CN (1) | CN109256100B (zh) |
WO (1) | WO2020062396A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109686336B (zh) * | 2019-02-22 | 2021-04-20 | 京东方科技集团股份有限公司 | 显示器件及其显示控制方法、装置 |
US10909937B1 (en) * | 2019-11-18 | 2021-02-02 | Novatek Microelectronics Corp. | Driver circuit and related display system |
CN112863422B (zh) * | 2021-02-20 | 2022-04-26 | Tcl华星光电技术有限公司 | 时序控制器及显示面板 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101025486A (zh) * | 2006-02-22 | 2007-08-29 | 三星电子株式会社 | 具有改进的侧面可视性的液晶显示装置 |
CN101458907A (zh) * | 2007-12-13 | 2009-06-17 | 恩益禧电子股份有限公司 | 用于驱动液晶显示面板的装置和方法 |
US20090160879A1 (en) * | 2007-12-20 | 2009-06-25 | Au Optronics Corp. | Data driver using a gamma selecting signal, a flat panel display with the same and a driving method therefor |
CN103517054A (zh) * | 2012-06-29 | 2014-01-15 | 三星显示有限公司 | 驱动显示装置的方法 |
CN106683627A (zh) * | 2016-12-20 | 2017-05-17 | 惠科股份有限公司 | 液晶显示器件及其驱动方法 |
CN107068102A (zh) * | 2017-05-22 | 2017-08-18 | 惠科股份有限公司 | 一种图像处理方法、图像处理装置及显示装置 |
CN107529049A (zh) * | 2017-08-28 | 2017-12-29 | 惠科股份有限公司 | 显示装置图像处理方法、图像处理结构及显示装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005010276A (ja) * | 2003-06-17 | 2005-01-13 | Seiko Epson Corp | ガンマ補正回路、液晶駆動回路、表示装置、電源回路 |
KR100725976B1 (ko) * | 2005-12-27 | 2007-06-08 | 삼성전자주식회사 | 감마 조정회로 및 감마 조정방법 |
JP4840412B2 (ja) * | 2008-06-26 | 2011-12-21 | ソニー株式会社 | 液晶表示装置 |
US9460673B2 (en) * | 2013-07-30 | 2016-10-04 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LCD panel having overvoltage driving table and method for driving the LCD panel |
CN104036722B (zh) * | 2014-05-16 | 2016-03-23 | 京东方科技集团股份有限公司 | 像素单元驱动电路及其驱动方法、显示装置 |
CN105225647B (zh) * | 2015-10-15 | 2018-09-18 | 小米科技有限责任公司 | 亮度调整方法及装置 |
CN107529048B (zh) | 2016-06-20 | 2019-07-26 | 海信集团有限公司 | 一种投影图像处理方法、装置及投影显示系统 |
CN107481689B (zh) * | 2017-08-25 | 2019-11-05 | 惠科股份有限公司 | 图像处理装置及其处理方法 |
CN108428721B (zh) * | 2018-03-19 | 2021-08-31 | 京东方科技集团股份有限公司 | 一种显示装置及控制方法 |
-
2018
- 2018-09-30 CN CN201811160500.6A patent/CN109256100B/zh active Active
- 2018-10-31 WO PCT/CN2018/112858 patent/WO2020062396A1/zh active Application Filing
- 2018-10-31 US US16/982,033 patent/US11450259B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101025486A (zh) * | 2006-02-22 | 2007-08-29 | 三星电子株式会社 | 具有改进的侧面可视性的液晶显示装置 |
CN101458907A (zh) * | 2007-12-13 | 2009-06-17 | 恩益禧电子股份有限公司 | 用于驱动液晶显示面板的装置和方法 |
US20090160879A1 (en) * | 2007-12-20 | 2009-06-25 | Au Optronics Corp. | Data driver using a gamma selecting signal, a flat panel display with the same and a driving method therefor |
CN103517054A (zh) * | 2012-06-29 | 2014-01-15 | 三星显示有限公司 | 驱动显示装置的方法 |
CN106683627A (zh) * | 2016-12-20 | 2017-05-17 | 惠科股份有限公司 | 液晶显示器件及其驱动方法 |
CN107068102A (zh) * | 2017-05-22 | 2017-08-18 | 惠科股份有限公司 | 一种图像处理方法、图像处理装置及显示装置 |
CN107529049A (zh) * | 2017-08-28 | 2017-12-29 | 惠科股份有限公司 | 显示装置图像处理方法、图像处理结构及显示装置 |
Also Published As
Publication number | Publication date |
---|---|
CN109256100B (zh) | 2020-10-16 |
CN109256100A (zh) | 2019-01-22 |
US11450259B2 (en) | 2022-09-20 |
US20210020093A1 (en) | 2021-01-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10446095B2 (en) | Image processing method of display device, image processing structure, and display device | |
CN107358929B (zh) | 显示装置视角补偿计算的方法、视角补偿结构及显示装置 | |
WO2018214188A1 (zh) | 图像处理方法、图像处理装置及显示装置 | |
JP5680969B2 (ja) | 液晶表示装置 | |
JP5080658B2 (ja) | 液晶表示装置 | |
WO2018113615A1 (zh) | 液晶显示器件及其驱动方法 | |
US20160019851A1 (en) | Liquid crystal display device, four-color converter, and conversion method for converting rgb data to rgbw data | |
WO2017096684A1 (zh) | Led背光色温调节电路及具有其的显示装置 | |
US20170039921A1 (en) | Pixel Structure and Driving Method Thereof, Array Substrate and Display Device | |
US11176897B2 (en) | Driving method for liquid crystal display panel, driving device and display apparatus | |
CN109559692B (zh) | 一种显示模组的驱动方法、驱动系统和显示装置 | |
WO2020062396A1 (zh) | 一种显示面板的驱动方法和驱动系统 | |
JPWO2011010637A1 (ja) | 液晶表示装置の製造方法 | |
WO2019119607A1 (zh) | 显示装置的驱动方法、驱动装置及显示装置 | |
WO2019056679A1 (zh) | 显示装置的驱动方法及显示装置 | |
TW201807693A (zh) | 像素驅動方法 | |
CN109559693B (zh) | 一种显示面板的驱动方法、驱动系统和显示装置 | |
CN110189717B (zh) | 一种显示模组的驱动方法、驱动系统和显示装置 | |
US20200118503A1 (en) | Driving Method of Display Device and Display Device | |
CN107657930B (zh) | 改善lcd显示器色偏的方法及lcd显示器 | |
WO2015180199A1 (zh) | 四色转换器、显示装置及三色数据到四色数据的转换方法 | |
RU2656700C1 (ru) | Жидкокристаллическое устройство отображения и способ управления им | |
CN104078020A (zh) | 液晶显示装置、四色转换器及rgb数据到rgbw数据的转换方法 | |
US11423854B2 (en) | Driving method and system of display panel, and display device | |
CN110010087B (zh) | 一种显示面板的驱动方法、驱动系统和显示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18935420 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 13.08.2021) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18935420 Country of ref document: EP Kind code of ref document: A1 |