WO2014063384A1 - Amoled显示器及其精确补偿老化的方法 - Google Patents

Amoled显示器及其精确补偿老化的方法 Download PDF

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Publication number
WO2014063384A1
WO2014063384A1 PCT/CN2012/083944 CN2012083944W WO2014063384A1 WO 2014063384 A1 WO2014063384 A1 WO 2014063384A1 CN 2012083944 W CN2012083944 W CN 2012083944W WO 2014063384 A1 WO2014063384 A1 WO 2014063384A1
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Prior art keywords
color depth
display
compensation
image data
data
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PCT/CN2012/083944
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English (en)
French (fr)
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黄泰钧
吴元均
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to DE112012007035.6T priority Critical patent/DE112012007035B4/de
Priority to US13/807,714 priority patent/US9349312B2/en
Publication of WO2014063384A1 publication Critical patent/WO2014063384A1/zh
Anticipated expiration legal-status Critical
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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 using controlled light sources
    • G09G3/30Control 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 using controlled light sources using electroluminescent panels
    • G09G3/32Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2007Display of intermediate tones
    • G09G3/2018Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • G09G3/2025Display of intermediate tones by time modulation using two or more time intervals using sub-frames the sub-frames having all the same time duration
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/06Colour space transformation

Definitions

  • the present invention relates to AMOLED display technology, and more particularly to an AMOLED display and a method for accurately compensating for aging. Background technique
  • the AMOLED (Active Matrix/Organic Light Emitting Diode) panel is an active giant array organic light-emitting diode panel. Compared with the conventional liquid crystal panel, the AMOLED panel has the characteristics of faster response, higher contrast, and wider viewing angle.
  • AMOLED is an OLED (Organic Light Emitting Diode) that emits light by carrier injection and recombination under the organic light-emitting diode.
  • OI ED illumination is an OLED (Organic Light Emitting Diode) that emits light by carrier injection and recombination under the organic light-emitting diode.
  • ITO Indium Tin Oxide
  • metal electrode used as the anode and cathode of the device respectively.
  • electrons and holes are injected from the cathode and the anode to the electron and hole transport layers, respectively.
  • the electrons and holes pass through the electrons respectively.
  • the hole transport layer migrates to the light-emitting layer and meets in the light-emitting layer to form excitons and excite the light-emitting molecules, and the latter emits visible light through radiation relaxation.
  • Radiant light can be
  • the metal electrode film also functioned as a reflective layer.
  • OLED Compared to TFT-LCD (Thin Film Field Effect Transistor LCD), OLED has thinner and lighter, active illumination (no backlight required), no viewing angle problem, high definition, high brightness, fast response, low power consumption, temperature range of use Wide, shock-resistant, low-cost and flexible display, many of which are difficult to achieve with TFT LCD panels.
  • TFT-LCD Thin Film Field Effect Transistor LCD
  • the AMOLED display utilizes the current through the thin film of the organic material to generate light, different organic materials emit light of different colors.
  • the organic material in the device ages, and the luminous efficiency becomes lower, shortening the display.
  • the life of the device Different organic materials may age at different speeds, resulting in varying degrees of color aging, and the white field of the display varies with the use of the display.
  • individual pixels may age at a different rate than other pixels, resulting in uneven display. Therefore, AMOLED displays must have compensation measures to maintain their performance.
  • FIG. 1 it is a schematic structural diagram of an AMOLED display with aging compensation function which is common in the prior art.
  • the AMOLED display comprises: a display panel 11 provided with AMOLED-based pixels; a data processor 12, processing image data from the video source and compensation data from the compensation unit 16, and outputting the compensated image data; (TCON) 13 , generating a timing control signal according to an output of the data processor 12; a driver 14 driving the display panel 11 according to the timing control signal; and displaying a measurement module 15 for measuring display uniformity of the display panel 11; 16. It generates compensation data according to the measurement result of the display measurement module 15 and transmits it to the data processor 12.
  • the functions of the compensation unit 16 and the display measurement module 15 reference is made to the description of the Chinese patent application CN101194300A and the Chinese patent CN1886774B.
  • the image data of the 8-bit (bit) color depth from the video source is transmitted to the data processor 12, and the image data of the 8-bit color depth processed by the data processor 12 is transmitted to the timing controller 13, and the main function of the timing controller 13 is
  • the source driver and the gate driver provide necessary timing control signals.
  • the timing of the timing controller 13 mainly depends on the data structure and display mode of the image data, and the timing control signal including the 8-bit color depth information is transmitted to the driver 14.
  • the driver 14 is generally mainly composed of The source driver and the gate driver are composed, and the driver 14 drives the display panel 11 in accordance with the 8-bit color depth and converts it into a current to drive the OLED in the display panel 11 to emit visible light.
  • the display effect required by the image data is inconsistent with the actual display effect on the display panel 11 due to the aging phenomenon of the AMOLED display, resulting in uneven display, and therefore OLED aging compensation is required.
  • the compensation data of the 8-bit color depth is generated by the compensation unit 16
  • the compensation data is transmitted to the data processor 12, and the image data is mixed to compensate the image data, 8 bits.
  • the color depth compensated image data is transmitted to the timing controller 13, and then the display panel is driven by the driver 14.
  • the display effect of the liquid crystal is determined by the effective voltage applied to the liquid crystal.
  • the PWM Pulse Width Modulation
  • FRC Full Rate Control
  • the PWM is divided into several time slices in one scan time, such as 256 gray scales, and is divided into 256 time slices. Depending on the gray level to be realized, it is determined how many time slices have driving voltages.
  • FIG. 3 it is a schematic diagram of the principle of the FRC technology in the prior art.
  • the FRC technology is a technique that uses the visual persistence characteristic of the human eye to visually increase the number of colors by controlling the frame rate.
  • the FRC uses a time-averaged approach that allows the human eye to experience different brightness levels.
  • FRC is similar to PWM, except that each time slice becomes one frame.
  • four time slices correspond to the first frame, the second frame, the third frame, and the fourth frame, respectively.
  • the driving voltage is displayed, it is black.
  • the color of the liquid crystal is the same as that of the gray scale, which is actually the gray level of the RGB three primary colors. Summary of the invention
  • Another object of the present invention is to provide an AMOLED display that accurately compensates for aging and increases compensation accuracy.
  • an AMOLED display which mainly includes: a display panel provided with an AMOLED-based pixel;
  • a data processor that processes image data from the video source and compensation data from the compensation unit, and outputs the compensated image data, the image data having a first color depth, the compensation data and the compensated image data having a greater than a second color depth of the first color depth;
  • a frame rate control module that adjusts the compensated image data to a first color depth
  • a timing controller that generates a timing control signal according to an output of the frame rate control module
  • a driver that is driven according to the timing control signal
  • a compensation unit that generates the compensation data having the second color depth according to the measurement result of the display measurement module and transmits the compensation data to the data processor.
  • the first color depth is 8 bits.
  • the second color depth is 10 bits.
  • the compensation unit includes a lookup table.
  • the display panel just supports the first color depth.
  • the present invention also provides a method for accurately compensating for aging of an AMOLED display, comprising: Step 51: A data processor processes image data from a video source and compensation data from a compensation unit, and outputs compensated image data, wherein the image data has a first color depth, the compensation data and the compensated image data having a second color depth greater than the first color depth;
  • Step 52 The frame rate control module adjusts the compensated image data to a first color depth.
  • Step 53 The timing controller generates a timing control signal according to the output of the frame rate control module.
  • Step 54 The driver drives a display panel with an AMOLED-based pixel according to the timing control signal
  • Step 55 The display measurement module measures display uniformity of the display panel;
  • Step 56 The compensation unit generates the compensation data having the second color depth according to the measurement result of the display measurement module and transmits the compensation data to the data processor.
  • the first color depth is 8 bits.
  • the second color depth is 10 bits.
  • the compensation unit includes a lookup table.
  • the display panel just supports the first color depth.
  • the invention also provides an AMOLED display, comprising:
  • a data processor that processes image data from the video source and compensation data from the compensation unit, and outputs the compensated image data, the image data having a first color depth, the compensation data and the compensated image data having a greater than a second color depth of the first color depth;
  • a frame rate control module that adjusts the compensated image data to a first color depth
  • a timing controller that generates a timing control signal according to an output of the frame rate control module
  • a driver that is driven according to the timing control signal
  • a compensation unit which generates the compensation data having the second color depth according to the measurement result of the display measurement module and transmits the compensation data to the data processor;
  • the first color depth is 8 bits
  • the second color depth is 10 bits
  • the compensation unit includes a lookup table
  • the display panel just supports the first color depth.
  • the AMOLED display of the present invention can compensate for aging of the OLED and increase the compensation accuracy.
  • the AMOLED display of the present invention accurately compensates for aging by increasing the compensation accuracy of the AMOLED display.
  • FIG. 1 is a schematic diagram showing the structure of an AMOLED display with aging compensation function which is common in the prior art
  • FIG. 3 is a schematic diagram of the principle of the FRC technology in the prior art
  • 4 is a schematic structural view of a preferred embodiment of an AMOLED display of the present invention
  • FIG. 5 is a flow chart of a method for accurately compensating for aging of an AMOLED display of the present invention.
  • the AMOLED display mainly includes: a display panel 41 provided with AMOLED-based pixels; a data processor 42 that processes image data from the video source and compensation data from the compensation unit 46, and outputs the compensated image data,
  • the image data has a first color depth, the compensation data and the compensated image data have a second color depth greater than the first color depth;
  • the frame rate control module 47 adjusts the compensated image data to the first color a timing controller 43 that generates a timing control signal according to an output of the frame rate control module 47; a driver 44 that drives the display panel 41 according to the timing control signal; and a display measurement module 45 that measures the display
  • the display unit of the panel 41 is uniform; the compensation unit 46 generates the compensation data having the second color depth according to the measurement result of the display measurement module 45 and transmits the compensation data to the data processor 42.
  • the 8-bit color depth image data from the video source is transmitted to the data processor 42, and the data processor 42 processes the 8-bit color depth image data from the video source and the 10-bit color depth compensation data from the compensation unit 46, and outputs The 10-bit color depth compensated image data; the frame rate control module 47 adjusts the 10-bit color depth compensated image data to an 8-bit color depth and transmits it to the timing controller 43 for timing control including 8-bit color depth information.
  • the signal is transmitted to the driver 44, and the driver 44 drives the OLED in the display panel 41 to emit visible light according to the 8-bit color depth timing control signal.
  • the compensation unit 46 As the compensation circuit, after the display measurement module 45 measures the display uniformity of the display panel 41, the compensation unit 46 generates compensation data of 10-bit color depth, the compensation data is transmitted to the data processor 42, and the image data is mixed to compensate The image data is such that the display effect required by the image data is consistent with the actual display effect on the display panel 41, so that the display is uniform.
  • the display effect of the AMOLED display can also be adjusted by the FRC method.
  • the invention aims at aging compensation data and increases the number of color depths, that is, the color depth is increased from 8 bits to 10 bits. Since the display panel can receive fewer color depth bits, the FRC method can be used to display the display effect. Higher color depth data, which increases the accuracy of the compensation.
  • the invention needs to satisfy the case where the second color depth is greater than the first color depth, and other suitable configurations may be adopted except for the case where the first color depth is 8 bits and the second color depth is 10 bits.
  • the display panel 41 can be preferably configured to support the first color depth, and the display panel 41 smaller than the first color depth cannot support the normal display of the image data, and the display panel 41 larger than the first color depth increases the cost, and For the display panel 41 greater than or equal to the second color depth, it is not necessary to employ the frame rate control module 47.
  • Compensation unit 46 may include a lookup table that supports generating compensation data having a second color depth.
  • FIG. 5 it is a flow chart of a method for accurately compensating for aging of an AMOLED display of the present invention.
  • the method includes:
  • Step 51 The data processor processes the image data from the video source and the compensation data from the compensation unit, and outputs the compensated image data, where the image data has a first color depth, and the compensation data and the compensated image data have a second color depth greater than the first color depth;
  • Step 52 The frame rate control module adjusts the compensated image data to a first color depth.
  • Step 53 The timing controller generates a timing control signal according to the output of the frame rate control module.
  • Step 54 The driver drives a display panel with an AMOLED-based pixel according to the timing control signal
  • Step 55 The display measurement module measures display uniformity of the display panel; and step 56, the compensation unit generates the compensation data with the second color depth according to the measurement result of the display measurement module, and transmits the compensation data to the data processor .
  • the first color depth may be 8 bits
  • the second color depth may be 10 bits
  • the display panel just supports the first color depth.
  • the compensation unit may include a lookup table that supports generation of compensation data having a second color depth.
  • the AMOLED display of the present invention can compensate for aging of the OLED and increase the compensation accuracy.
  • the method for accurately compensating for aging of the AMOLED display of the present invention can increase the compensation accuracy of the AMOLED display.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of El Displays (AREA)

Abstract

一种AMOLED显示器包括:显示面板(41);数据处理器(42),处理来自视频源的影像数据以及来自补偿单元(46)的补偿数据,输出经补偿的影像数据,所述影像数据具有第一色深,所述补偿数据和经补偿的影像数据具有大于第一色深的第二色深;帧速控制模块(47),将经补偿的影像数据调整为第一色深;时序控制器(43),生成时序控制信号;驱动器(44),驱动所述显示面板(41);显示测量模块(45),测量所述显示面板的显示均匀性;以及补偿单元(46),生成所述具有第二色深的补偿数据。还提供了AMOLED显示器精确补偿老化的方法。该AMOLED显示器及其精确补偿老化的方法可以针对OLED老化进行补偿,增加补偿精准度。

Description

AMOLED显示器及其精确补偿老化的方法 技术领域
本发明涉及 AMOLED显示技术, 尤其涉及一种 AMOLED显示器及 其精确补偿老化的方法。 背景技术
AMOLED ( Active Matrix/Organic Light Emitting Diode ) 面板是有源 巨 阵有机发光二极管面板, 相比传统的液晶面板, AMOLED 面板具有反应 速度较快、 对比度更高、 视角较广等特点。
AMOLED 是 OLED ( Organic Light Emitting Diode , 有机发光二极 驱动下通过载流子注入和复合导致发光的现象。 OI ED 发光原理是用
ITO (氧化铟锡)透明电极和金属电极分别作为器件的阳极和阴极, 在一定电 压驱动下, 电子和空穴分别从阴极和阳极注入到电子和空穴传输层, 电子 和空穴分别经过电子和空穴传输层迁移到发光层, 并在发光层中相遇, 形 成激子并使发光分子激发, 后者经过辐射弛豫而发出可见光。 辐射光可从
ITO一侧观察到, 金属电极膜同时也起了反射层的作用。
相较于 TFT-LCD (薄膜场效应晶体管 LCD ) , OLED 具有更薄更 轻、 主动发光(不需要背光源) 、 无视角问题、 高清晰、 高亮度、 响应快 速、 能耗低、 使用温度范围广、 抗震能力强、 成本低和可实现柔软显示等 特点, 其中不少特性是 TFT液晶面板难以实现的。
但是, 由于 AMOLED 显示器利用通过有机材料薄膜的电流来产生 光, 不同的有机材料发射不同颜色的光, 随着 AMOLED显示器的使用, 器件中的有机材料老化, 同时发光效率会变低, 缩短了显示器件的使用寿 命。 不同有机材料可能以不同速度老化, 进而导致不同程度的颜色老化, 并且显示器的白场随着显示器的使用而变化。 另外, 各个像素可能以不同 于其它像素的速率老化, 导致显示不均匀。 因此, AMOLED 显示器必须 具有补偿措施来保持其性能。
参见图 1 , 其为现有技术中常见的具有老化补偿功能的 AMOLED 显 示器的结构示意图。 该 AMOLED显示器包括: 显示面板 11 , 其设有基于 AMOLED 的像素; 数据处理器 12 , 处理来自视频源的影像数据以及来自 补偿单元 16 的补偿数据, 并输出经补偿的影像数据; 时序控制器 ( TCON ) 13 , 根据数据处理器 12 的输出生成时序控制信号; 驱动器 ( Driver ) 14, 其根据时序控制信号驱动显示面板 11 ; 显示测量模块 15 , 其测量显示面板 11 的显示均匀性; 补偿单元 16, 其根据显示测量模块 15 的测量结果生成补偿数据并传输给数据处理器 12。 关于补偿单元 16及显 示测量模块 15 功能的实现, 可参见中国专利申请 CN101194300A 以及中 国专利 CN1886774B的叙述。
来自视频源的 8位(bit ) 色深的影像数据传输给数据处理器 12, 数据 处理器 12处理的 8位色深的影像数据传输给时序控制器 13 , 时序控制器 13 的主要功能是为源驱动器和栅驱动器提供必要的时序控制信号, 时序控 制器 13 的时序主要取决于影像数据的数据结构和显示模式, 包含 8位色 深信息的时序控制信号传输给驱动器 14, 驱动器 14一般主要由源驱动器 和栅驱动器组成, 驱动器 14按照 8位色深驱动显示面板 11 , 并转换为电 流来驱动显示面板 11 中的 OLED发出可见光。 由于 AMOLED显示器的 老化现象, 导致随时间变化, 影像数据所要求的显示效果与显示面板 11 上的实际显示效果不一致, 造成显示不均匀, 因此需要进行 OLED aging (老化)补偿。 利用显示测量模块 15 测量显示面板 11 的显示均匀性 后, 通过补偿单元 16 生成 8位色深的补偿数据, 补偿数据传输给数据处 理器 12, 和影像数据进行混合处理以补偿影像数据, 8位色深的经补偿的 影像数据传输给时序控制器 13 , 然后通过驱动器 14来驱动显示面板。
但是, 如果按照现有的方式进行老化补偿, 因为通过驱动器的集成电 路(IC )进行补偿最少就是一阶, 转换为电流后, 相近两阶的电流差异较 大, 从而导致无法精确补偿, 具体可参见图 2, 其为驱动 OLED的集成电 路在 Vds=-10V及 -0.1V时的 Ids-Vgs特性曲线, 由图 2可见, 虽然 Vds相 接近, 但是 Ids相差很大。
另一方面, 液晶的显示效果是由加在液晶上的有效电压决定的, 液晶 的灰度(彩色) 的实现有两种方式, 即 PWM (脉宽调制)和 FRC ( Frame Rate Control , 帧速控制) 。 PWM 是在一次扫描时间内分成若干个时间 片, 如 256级灰度, 就分成 256个时间片, 根据要实现的灰度等级来决定 有多少个时间片内具有驱动电压。
参见图 3所示, 其为现有技术中 FRC技术的原理示意图。 FRC技术 是指利用人眼的视觉暂留特性, 通过操控画面刷新频率 (Frame Rate ) , 在视觉上增加颜色数量的技术。 FRC是利用时间平均的方式, 使得人眼感 受到不同亮度。 FRC跟 PWM类似, 只是每个时间片变成了一帧, 如图 3 所示, 四个时间片分别对应第一帧、 第二帧、 第三帧及第四帧, 对于液晶 来说, 具有驱动电压时显示为黑, 通过设置连续四个时间片对应的各帧是 否具有驱动电压, 利用视觉暂留特性可以实现不同的视觉灰度效果。 液晶 的彩色跟灰度的实现方式是一样的, 其实就是调配 RGB三基色的灰度。 发明内容
因此, 本发明的目的在于提供一种 AMOLED显示器, 针对 OLED老 化补偿, 增加补偿精准度。
本发明的另一目的在于提供一种 AMOLED 显示器精确补偿老化的方 法, 增加补偿精准度。
为实现上述目的, 本发明提供一种 AMOLED显示器, 主要包括: 显示面板, 其设有基于 AMOLED的像素;
数据处理器, 其处理来自视频源的影像数据以及来自补偿单元的补偿 数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述补偿 数据和经补偿的影像数据具有大于第一色深的第二色深;
帧速控制模块, 其将所述经补偿的影像数据调整为第一色深; 时序控制器, 其根据所述帧速控制模块的输出生成时序控制信号; 驱动器, 其根据所述时序控制信号驱动所述显示面板;
显示测量模块, 其测量所述显示面板的显示均匀性; 以及
补偿单元, 其根据所述显示测量模块的测量结果生成所述具有第二色 深的补偿数据并传输给所述数据处理器。
其中, 所述第一色深为 8位。
其中, 所述第二色深为 10位。
其中, 所述补偿单元包含查找表。
其中, 所述显示面板恰好支持第一色深。
本发明还提供一种 AMOLED显示器精确补偿老化的方法, 包括: 步骤 51、 数据处理器处理来自视频源的影像数据以及来自补偿单元的 补偿数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述 补偿数据和经补偿的影像数据具有大于第一色深的第二色深;
步骤 52、 帧速控制模块将所述经补偿的影像数据调整为第一色深; 步骤 53、 时序控制器根据所述帧速控制模块的输出生成时序控制信 号;
步骤 54、 驱动器根据所述时序控制信号驱动设有基于 AMOLED的像 素的显示面板;
步骤 55、 显示测量模块测量所述显示面板的显示均匀性; 以及 步骤 56、 补偿单元根据所述显示测量模块的测量结果生成所述具有第 二色深的补偿数据并传输给所述数据处理器。
其中, 所述第一色深为 8位。
其中, 所述第二色深为 10位。
其中, 所述补偿单元包含查找表。
其中, 所述显示面板恰好支持第一色深。
本发明还提供一种 AMOLED显示器, 包括:
显示面板, 其设有基于 AMOLED的像素;
数据处理器, 其处理来自视频源的影像数据以及来自补偿单元的补偿 数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述补偿 数据和经补偿的影像数据具有大于第一色深的第二色深;
帧速控制模块, 其将所述经补偿的影像数据调整为第一色深; 时序控制器, 其根据所述帧速控制模块的输出生成时序控制信号; 驱动器, 其根据所述时序控制信号驱动所述显示面板;
显示测量模块, 其测量所述显示面板的显示均匀性; 以及
补偿单元, 其根据所述显示测量模块的测量结果生成所述具有第二色 深的补偿数据并传输给所述数据处理器;
其中, 所述第一色深为 8位;
其中, 所述第二色深为 10位;
其中, 所述补偿单元包含查找表;
其中, 所述显示面板恰好支持第一色深。
本发明的 AMOLED显示器可以针对 OLED老化补偿, 增加补偿精准 度。 本发明的 AMOLED 显示器精确补偿老化的方法可以增加 AMOLED 显示器的补偿精准度。 附图说明
下面结合附图, 通过对本发明的具体实施方式详细描述, 将使本发明 的技术方案及其他有益效果显而易见。
附图中,
图 1 为现有技术中常见的具有老化补偿功能的 AMOLED显示器的结 构示意图;
图 2为驱动 OLED的集成电路在 Vds=-10V及 -0.1V时的 Ids-Vgs特性 曲线;
图 3为现有技术中 FRC技术的原理示意图; 图 4为本发明 AMOLED显示器一较佳实施例的结构示意图; 图 5为本发明 AMOLED显示器精确补偿老化的方法的流程图。 具体实施方式
参见图 4 , 其为本发明 AMOLED 显示器一较佳实施例的结构示意 图。 该 AMOLED显示器主要包括: 显示面板 41 , 其设有基于 AMOLED 的像素; 数据处理器 42 , 其处理来自视频源的影像数据以及来自补偿单元 46的补偿数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述补偿数据和经补偿的影像数据具有大于第一色深的第二色深; 帧速控 制模块 47 , 其将所述经补偿的影像数据调整为第一色深; 时序控制器 43 , 其根据所述帧速控制模块 47 的输出生成时序控制信号; 驱动器 44, 其根据所述时序控制信号驱动所述显示面板 41 ; 显示测量模块 45 , 其测 量所述显示面板 41 的显示均勾性; 补偿单元 46 , 其根据所述显示测量模 块 45 的测量结果生成所述具有第二色深的补偿数据并传输给所述数据处 理器 42。
来自视频源的 8位色深的影像数据传输给数据处理器 42 , 数据处理器 42处理来自视频源的 8位色深的影像数据以及来自补偿单元 46的 10位色 深的补偿数据, 并输出 10位色深的经补偿的影像数据; 帧速控制模块 47 将 10 位色深的经补偿的影像数据调整为 8 位色深后传输给时序控制器 43 , 包含 8位色深信息的时序控制信号传输给驱动器 44 , 驱动器 44根据 8位色深的时序控制信号驱动显示面板 41 中的 OLED发出可见光。 作为 补偿回路, 利用显示测量模块 45测量显示面板 41 的显示均勾性后, 通过 补偿单元 46生成 10位色深的补偿数据, 补偿数据传输给数据处理器 42 , 和影像数据进行混合处理以补偿影像数据, 从而使影像数据所要求的显示 效果与显示面板 41上的实际显示效果一致, 使显示均匀。
与液晶的灰度(彩色) 的实现方式相似, AMOLED 显示器的显示效 果也可以用 FRC 方式来调整。 本发明针对老化补偿数据, 提高其色深位 数, 也就是色深由 8位增加至 10位, 因显示面板可接收色深位数较少, 因此利用 FRC的方式, 使得显示效果可以呈现出较高色深的数据, 借此增 加了补偿的精准度。
本发明需满足第二色深大于第一色深的情况, 除第一色深为 8位、 第 二色深为 10位的情况, 也可以采取其它适合的配置。 显示面板 41可以优 选配置为恰好支持第一色深, 小于第一色深的显示面板 41 无法支持影像 数据的正常显示, 大于第一色深的显示面板 41 则提高了成本, 另外, 对 于大于等于第二色深的显示面板 41 来说, 也不必采用帧速控制模块 47。 补偿单元 46可以包含查找表, 支持生成具有第二色深的补偿数据。
参见图 5 , 其为本发明 AMOLED 显示器精确补偿老化的方法的流程 图。 该方法包括:
步骤 51、 数据处理器处理来自视频源的影像数据以及来自补偿单元的 补偿数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述 补偿数据和经补偿的影像数据具有大于第一色深的第二色深;
步骤 52、 帧速控制模块将所述经补偿的影像数据调整为第一色深; 步骤 53、 时序控制器根据所述帧速控制模块的输出生成时序控制信 号;
步骤 54、 驱动器根据所述时序控制信号驱动设有基于 AMOLED的像 素的显示面板;
步骤 55、 显示测量模块测量所述显示面板的显示均匀性; 以及 步骤 56、 补偿单元根据所述显示测量模块的测量结果生成所述具有第 二色深的补偿数据并传输给所述数据处理器。
其中, 所述第一色深可以为 8位, 第二色深可以为 10位, 所述显示 面板恰好支持第一色深。 所述补偿单元可以包含查找表, 支持生成具有第 二色深的补偿数据。
综上所述, 本发明的 AMOLED显示器可以针对 OLED老化补偿, 增 加补偿精准度。 本发明的 AMOLED显示器精确补偿老化的方法可以增加 AMOLED显示器的补偿精准度。
以上所述, 对于本领域的普通技术人员来说, 可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形, 而所有这些改变和变形 都应属于本发明后附的权利要求的保护范围。

Claims

权 利 要 求
1、 一种 AMOLED显示器, 包括:
显示面板, 其设有基于 AMOLED的像素;
数据处理器, 其处理来自视频源的影像数据以及来自补偿单元的补偿 数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述补偿 数据和经补偿的影像数据具有大于第一色深的第二色深;
帧速控制模块, 其将所述经补偿的影像数据调整为第一色深; 时序控制器, 其根据所述帧速控制模块的输出生成时序控制信号; 驱动器, 其根据所述时序控制信号驱动所述显示面板;
显示测量模块, 其测量所述显示面板的显示均匀性; 以及
补偿单元, 其根据所述显示测量模块的测量结果生成所述具有第二色 深的补偿数据并传输给所述数据处理器。
2、 如权利要求 1所述的 AMOLED显示器, 其中, 所述第一色深为 8 位。
3、 如权利要求 1 所述的 AMOLED显示器, 其中, 所述第二色深为 10位。
4、 如权利要求 1所述的 AMOLED显示器, 其中, 所述补偿单元包含 查找表。
5、 如权利要求 1所述的 AMOLED显示器, 其中, 所述显示面板恰好 支持第一色深。
6、 一种 AMOLED显示器精确补偿老化的方法, 包括:
步骤 51、 数据处理器处理来自视频源的影像数据以及来自补偿单元的 补偿数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述 补偿数据和经补偿的影像数据具有大于第一色深的第二色深;
步骤 52、 帧速控制模块将所述经补偿的影像数据调整为第一色深; 步骤 53、 时序控制器根据所述帧速控制模块的输出生成时序控制信 号;
步骤 54、 驱动器根据所述时序控制信号驱动设有基于 AMOLED的像 素的显示面板;
步骤 55、 显示测量模块测量所述显示面板的显示均匀性; 以及 步骤 56、 补偿单元根据所述显示测量模块的测量结果生成所述具有第 二色深的补偿数据并传输给所述数据处理器。
7、 如权利要求 6 所述的 AMOLED显示器精确补偿老化的方法, 其 中, 所述第一色深为 8位。
8、 如权利要求 6 所述的 AMOLED显示器精确补偿老化的方法, 其 中, 所述第二色深为 10位。
9、 如权利要求 6 所述的 AMOLED显示器精确补偿老化的方法, 其 中, 所述补偿单元包含查找表。
10、 如权利要求 6所述的 AMOLED显示器精确补偿老化的方法, 其 中, 所述显示面板恰好支持第一色深。
11、 一种 AMOLED显示器, 包括:
显示面板, 其设有基于 AMOLED的像素;
数据处理器, 其处理来自视频源的影像数据以及来自补偿单元的补偿 数据, 并输出经补偿的影像数据, 所述影像数据具有第一色深, 所述补偿 数据和经补偿的影像数据具有大于第一色深的第二色深;
帧速控制模块, 其将所述经补偿的影像数据调整为第一色深; 时序控制器, 其根据所述帧速控制模块的输出生成时序控制信号; 驱动器, 其根据所述时序控制信号驱动所述显示面板;
显示测量模块, 其测量所述显示面板的显示均匀性; 以及
补偿单元, 其根据所述显示测量模块的测量结果生成所述具有第二色 深的补偿数据并传输给所述数据处理器;
其中, 所述第一色深为 8位;
其中, 所述第二色深为 10位;
其中, 所述补偿单元包含查找表;
其中, 所述显示面板恰好支持第一色深。
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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104361859B (zh) * 2014-11-18 2017-01-11 深圳市华星光电技术有限公司 显示装置及其亮度调节方法
KR102286726B1 (ko) 2015-05-14 2021-08-05 주식회사 실리콘웍스 디스플레이 장치 및 그 구동 회로
US9870731B2 (en) 2015-06-25 2018-01-16 Intel Corporation Wear compensation for a display
US9830851B2 (en) 2015-06-25 2017-11-28 Intel Corporation Wear compensation for a display
US10002562B2 (en) 2016-03-30 2018-06-19 Intel Corporation Wear compensation for a display
CN106531083A (zh) * 2016-12-15 2017-03-22 上海天马有机发光显示技术有限公司 像素电路的补偿方法、oled显示面板及其补偿方法
US10747293B2 (en) * 2017-01-23 2020-08-18 Hewlett-Packard Development Company, L.P. Timing controllers for display devices
WO2019183811A1 (zh) 2018-03-27 2019-10-03 华为技术有限公司 屏幕亮度调节方法及终端
CN108447452B (zh) * 2018-03-28 2020-03-27 惠科股份有限公司 显示装置及其驱动方法
CN113242465B (zh) * 2021-04-27 2022-08-16 Oppo广东移动通信有限公司 视频处理方法、装置、电子设备及可读存储介质
CN114842800B (zh) * 2022-05-19 2024-05-31 姜英 采用离线标定减弱amoled显示屏退化的补偿方法
CN116343717B (zh) * 2023-03-21 2024-07-09 惠科股份有限公司 显示设备及其驱动方法
CN116863855A (zh) * 2023-07-24 2023-10-10 云谷(固安)科技有限公司 显示面板的亮度补偿方法、装置、设备及存储介质
CN117877430B (zh) * 2024-02-29 2024-07-16 深圳市科达康光电科技有限公司 低功耗amoled显示屏驱动方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006303630A (ja) * 2005-04-15 2006-11-02 Sony Corp フレームレート変換装置、追越補償方法及び表示装置
CN101044541A (zh) * 2004-10-22 2007-09-26 阿德文泰克全球有限公司 对有源矩阵oled平板显示器中有源元件变化的补偿
CN101194300A (zh) * 2005-04-12 2008-06-04 伊格尼斯创新有限公司 补偿发光装置显示器的不均匀性的方法和系统
US20080238911A1 (en) * 2007-03-29 2008-10-02 L.G. Philips Lcd Co., Ltd. Apparatus and method for controlling picture quality of flat panel display
CN100483488C (zh) * 2004-02-25 2009-04-29 三星电子株式会社 显示装置
CN1886774B (zh) * 2003-11-25 2010-08-04 全球Oled科技有限责任公司 具有老化补偿的oled显示器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060014213A (ko) * 2004-08-10 2006-02-15 엘지.필립스 엘시디 주식회사 유기 전기 발광 소자의 구동 회로 및 이를 이용한 구동 방법
KR101137856B1 (ko) * 2005-10-25 2012-04-20 엘지디스플레이 주식회사 평판표시장치 및 그 화질제어방법
KR101035579B1 (ko) 2008-09-05 2011-05-19 매그나칩 반도체 유한회사 디더링 방법 및 장치
KR101188053B1 (ko) * 2010-08-06 2012-10-05 한국과학기술원 유기 발광 다이오드 구동 장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1886774B (zh) * 2003-11-25 2010-08-04 全球Oled科技有限责任公司 具有老化补偿的oled显示器
CN100483488C (zh) * 2004-02-25 2009-04-29 三星电子株式会社 显示装置
CN101044541A (zh) * 2004-10-22 2007-09-26 阿德文泰克全球有限公司 对有源矩阵oled平板显示器中有源元件变化的补偿
CN101194300A (zh) * 2005-04-12 2008-06-04 伊格尼斯创新有限公司 补偿发光装置显示器的不均匀性的方法和系统
JP2006303630A (ja) * 2005-04-15 2006-11-02 Sony Corp フレームレート変換装置、追越補償方法及び表示装置
US20080238911A1 (en) * 2007-03-29 2008-10-02 L.G. Philips Lcd Co., Ltd. Apparatus and method for controlling picture quality of flat panel display

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