Display control apparatus and method of creating look-up table
    2.
    发明授权
    Display control apparatus and method of creating look-up table 有权
    显示控制装置和创建查找表的方法

    公开(公告)号:US08705135B2

    公开(公告)日:2014-04-22

    申请号:US11407055

    申请日:2006-04-20

    IPC分类号: G09G3/36 H04N1/40

    摘要: A display control apparatus according to an embodiment of the present invention includes: a grayscale converting circuit for converting input image data to output image data using a look-up table showing a correspondence between input image data of i bits and output image data of k bits larger than the i bits; and an LUT creating circuit for creating the look-up table based on γ data of 2k bits. The apparatus further includes a γ data storage circuit capable of storing the plural γ data in the LUT creating circuit.

    摘要翻译: 根据本发明实施例的显示控制装置包括:灰度转换电路,用于使用查询表将输入图像数据转换为输出图像数据,该查找表示出i位的输入图像数据和k位的输出图像数据之间的对应关系 大于i位; 以及用于基于2k位的γ数据创建查找表的LUT创建电路。 该装置还包括能够在LUT生成电路中存储多个γ数据的γ数据存储电路。

    Liquid crystal display device and control driver for a liquid crystal display device

    公开(公告)号:US08493303B2

    公开(公告)日:2013-07-23

    申请号:US12213968

    申请日:2008-06-26

    IPC分类号: G09G3/36 G09G3/28 G09G5/02

    摘要: A control driver for a liquid crystal display panel includes: an operation circuit, an LUT (Look-up Table), and a linear interpolation D/A converter. The operation circuit performs a certain operation on input image data to generate operation data, and outputs higher order bit data and lower order bit data of the operation data. The LUT includes a V-T (Voltage-Transmittance) characteristic of the liquid crystal display panel, and outputs first output data and second output data as display data based on the higher order bit data and the V-T characteristic. The linear interpolation D/A converter performs an linear interpolation operation and D/A conversion to generate output voltage supplied to the liquid crystal display panel in response to the first output data, the second output data and the lower order bit data.

    INTEGRATED CIRCUIT DESIGN METHOD FOR IMPROVED TESTABILITY
    4.
    发明申请
    INTEGRATED CIRCUIT DESIGN METHOD FOR IMPROVED TESTABILITY 有权
    用于改进可测性的集成电路设计方法

    公开(公告)号:US20120293525A1

    公开(公告)日:2012-11-22

    申请号:US13566518

    申请日:2012-08-03

    IPC分类号: G09G5/39

    摘要: A display device is provided with a display panel; and a display panel driver driving the display panel in response to externally-provided image data. The display panel driver includes a display memory for storing the image data, and is configured to perform overdrive processing on the image data read from the display memory. The display panel driver includes an overdrive processing control circuit detecting writing of the image data into the display memory to control operation and halt of a circuit used for the overdrive processing.

    摘要翻译: 显示装置设置有显示面板; 以及响应于外部提供的图像数据而驱动显示面板的显示面板驱动器。 显示面板驱动器包括用于存储图像数据的显示存储器,并且被配置为对从显示存储器读取的图像数据执行过驱动处理。 显示面板驱动器包括检测将图像数据写入显示存储器中的过驱动处理控制电路,以控制用于过驱动处理的电路的操作和停止。

    Display device, controller driver and driving method for display panel
    5.
    发明授权
    Display device, controller driver and driving method for display panel 有权
    显示设备,控制器驱动程序和显示面板的驱动方法

    公开(公告)号:US08040337B2

    公开(公告)日:2011-10-18

    申请号:US11439959

    申请日:2006-05-25

    IPC分类号: G06F3/038

    摘要: A display device includes a display panel, an environmental sensor, a correction circuit and a driving circuit. The correction circuit is configured to generate a corrected gray-scale data on the basis of input gray-scale data. The driving circuit is configured to drive the display panel in response to the corrected gray-scale data. The correction circuit generates the corrected gray-scale data by executing a correction using a polynomial in which the input gray-scale data are used as variables. Coefficients of the polynomial are changed in response to an output signal of the environmental sensor.

    摘要翻译: 显示装置包括显示面板,环境传感器,校正电路和驱动电路。 校正电路被配置为基于输入的灰度数据生成校正的灰度数据。 驱动电路被配置为响应于校正的灰度数据来驱动显示面板。 校正电路通过使用输入的灰度数据用作变量的多项式执行校正来生成校正的灰度数据。 多项式的系数响应于环境传感器的输出信号而改变。

    Display device, display panel driver and method of driving display panel
    6.
    发明授权
    Display device, display panel driver and method of driving display panel 有权
    显示设备,显示面板驱动程序和驱动显示面板的方法

    公开(公告)号:US07973973B2

    公开(公告)日:2011-07-05

    申请号:US11798578

    申请日:2007-05-15

    IPC分类号: H04N1/40

    摘要: An LCD device according to the present invention has: an LCD panel; an operation and correction circuit configured to perform a correction operation with respect to an input gray-scale data of a target frame image by using an arithmetic expression to generate an output gray-scale data; a data line driver configured to drive the LCD panel in accordance with the output gray-scale data; and a correction data calculation circuit configured to generate a correction data that specifies a relationship between the input gray-scale data and the output gray-scale data of the target frame image, depending on the input gray-scale data of the target frame image or an input gray-scale data of a precedent frame image followed by the target frame image. The operation and correction circuit determines coefficients of the arithmetic expression from the correction data.

    摘要翻译: 根据本发明的LCD装置具有:LCD面板; 操作和校正电路,被配置为通过使用算术表达式对目标帧图像的输入灰度数据执行校正操作,以生成输出灰度数据; 数据线驱动器,被配置为根据输出的灰度数据驱动LCD面板; 以及校正数据计算电路,被配置为根据目标帧图像的输入灰度数据生成指定目标帧图像的输入灰度数据和输出灰度数据之间的关系的校正数据,或者 前一帧图像的输入灰度数据跟随目标帧图像。 操作和校正电路从校正数据确定算术表达式的系数。

    Controller driver, liquid crystal display apparatus using the same, and liquid crystal driving method
    7.
    发明授权
    Controller driver, liquid crystal display apparatus using the same, and liquid crystal driving method 失效
    控制器驱动器,使用其的液晶显示装置和液晶驱动方法

    公开(公告)号:US07660010B2

    公开(公告)日:2010-02-09

    申请号:US11304727

    申请日:2005-12-16

    IPC分类号: G06F15/00 H04N9/79

    摘要: A controller driver includes a first compressor for compressing received image data to generate first compressed image data, a second compressor to generate second compressed image data, and an image memory capable of storing the second compressed image data of at least one frame. It also includes an overdrive processing unit for generating corrected image data where a tone value of the received image data is corrected from the first compressed image data or its expanded data and second compressed image data of one frame previous to the first compressed image data or its expanded data. The compression processing performed in the first compressor is the same as compression processing performed in the second compressor in compressing image data of one frame previous to the received image data.

    摘要翻译: 控制器驱动器包括用于压缩接收到的图像数据以产生第一压缩图像数据的第一压缩器,产生第二压缩图像数据的第二压缩器,以及能够存储至少一帧的第二压缩图像数据的图像存储器。 它还包括用于产生校正图像数据的过驱动处理单元,其中从第一压缩图像数据或其扩展数据校正接收到的图像数据的色调值,以及在第一压缩图像数据之前的一帧的第二压缩图像数据 扩展数据。 在第一压缩器中执行的压缩处理与在压缩接收到的图像数据之前的一帧的图像数据中在第二压缩器中执行的压缩处理相同。

    Image processing circuit, and display panel driver and display device mounting the circuit
    8.
    发明申请
    Image processing circuit, and display panel driver and display device mounting the circuit 有权
    图像处理电路,显示面板驱动器和显示装置安装电路

    公开(公告)号:US20090322713A1

    公开(公告)日:2009-12-31

    申请号:US12457941

    申请日:2009-06-25

    IPC分类号: G09G5/00

    摘要: A display panel driver includes: a compression circuit, when receiving image data of N×M pixels of a target block, generating compressed image data corresponding to the target block by compressing the image data; an image memory storing the compressed image data; a decompression circuit generating decompressed image data by decompressing the compressed image data from the image memory; and a drive circuit driving a display panel in response to the decompressed image data. The compression circuit selects one of a plurality of compression methods based on a correlation between the image data of the N×M pixels, and generates the compressed image data by the selected compression method. The plurality of compression methods includes: a first method calculating a first value corresponding to image data of the N×M pixels and putting the first value in the compressed image data, a second method calculating a second value corresponding to image data of n pixels of the N×M pixels and putting the second value in the compressed image data, and a third method calculating a bit plane reducing data by performing a bit plane reduction process independently on image data of each of the N×M pixels and putting the bit plane reducing data in the compressed image data.

    摘要翻译: 显示面板驱动器包括:压缩电路,当接收目标块的N×M个像素的图像数据时,通过压缩图像数据来生成与目标块对应的压缩图像数据; 存储压缩图像数据的图像存储器; 解压缩电路,通过从图像存储器解压缩压缩图像数据来产生解压缩图像数据; 以及响应于解压缩的图像数据驱动显示面板的驱动电路。 压缩电路基于N×M像素的图像数据之间的相关性来选择多种压缩方法中的一种,并通过所选择的压缩方法生成压缩图像数据。 多个压缩方法包括:第一方法,计算对应于N×M个像素的图像数据的第一值并将第一值放入压缩图像数据;第二方法,计算与N×M的n个像素的图像数据对应的第二值 并且将第二值放入压缩图像数据中,以及第三方法,通过对每个N×M像素的图像数据独立地执行位平面降低处理来计算位平面减少数据,并将位平面减小数据放入压缩图像 数据。

    Displaying apparatus, displaying panel driver and displaying panel driving method
    9.
    发明申请
    Displaying apparatus, displaying panel driver and displaying panel driving method 有权
    显示设备,显示面板驱动程序和显示面板驱动方法

    公开(公告)号:US20090184983A1

    公开(公告)日:2009-07-23

    申请号:US12320051

    申请日:2009-01-15

    IPC分类号: G09G5/10

    摘要: A display apparatus includes a display panel; and a display panel driver configured to drive signal lines of the display panel. The display panel driver includes: a color reducing circuit configured to be possible to generate a first color reduction image data from a first input image data by executing an error diffusion process by using a first error value, and to generate a second color reduction image data from the first input image data by executing the error diffusion process by using a second error value which is different from the first error value; and a driving section configured to drive a first pixel positioned on a horizontal line of the display panel in response to the first color reduction image data, and drive a second pixel positioned on the horizontal line and adjacent to a the first pixel in a horizontal direction, in response to the second color reduction image data.

    摘要翻译: 显示装置包括显示面板; 以及配置成驱动显示面板的信号线的显示面板驱动器。 显示面板驱动器包括:颜色降低电路,被配置为可以通过使用第一误差值执行误差扩散处理从第一输入图像数据生成第一降色图像数据,并且生成第二降色图像数据 通过使用与第一误差值不同的第二误差值来执行误差扩散处理从第一输入图像数据中获取第一输入图像数据; 以及驱动部,被配置为响应于所述第一减色图像数据来驱动位于所述显示面板的水平线上的第一像素,并且驱动位于所述水平线上并与所述第一像素在水平方向相邻的第二像素 响应于第二降色图像数据。

    Display device and controller driver for improved FRC technique
    10.
    发明申请
    Display device and controller driver for improved FRC technique 失效
    用于改进FRC技术的显示设备和控制器驱动程序

    公开(公告)号:US20080117198A1

    公开(公告)日:2008-05-22

    申请号:US11984795

    申请日:2007-11-21

    IPC分类号: G06F3/038

    摘要: A display device is provided with a display panel and a controller driver. The controller driver includes: a preceding image processing stage performing color-reduction processing on input image data to generate color-reduced image data; a memory; a latter image processing stage adapted to perform modification processing on the color-reduced image data received from the memory to generate output image data; and a driver circuit driving the display panel in response to the output image data. The latter image processing stage is provided with a counter generating a counter value; a binary LUT outputting an LUT output value in response to the counter value and coordinates of a target pixel selected from the plurality of pixels; and a selector section generating the output image data from the color-reduced image data in response to the LUT output value. The bit width of the output image data is identical to that of the color-reduced image data. The value of the output image data is identical to the corresponding value of the color-reduced image data when the LUT output value is a first value, while the value of the output image data is modified from the corresponding value of the color-reduced image data when the LUT output value is a second value different from the first value.

    摘要翻译: 显示装置设置有显示面板和控制器驱动器。 控制器驱动器包括:前一图像处理阶段,对输入图像数据进行色彩还原处理,以生成降色图像数据; 记忆 后一图像处理阶段,适于对从存储器接收的减色图像数据执行修改处理以产生输出图像数据; 以及响应于输出图像数据驱动显示面板的驱动器电路。 后一个图像处理阶段设置有产生计数器值的计数器; 响应于所述计数器值和从所述多个像素中选择的目标像素的坐标输出LUT输出值的二进制LUT; 以及选择器部分,其响应于LUT输出值从色彩减小的图像数据生成输出图像数据。 输出图像数据的位宽与减色图像数据的位宽相同。 当LUT输出值为第一值时,输出图像数据的值与减色图像数据的对应值相同,而输出图像数据的值从减色图像的对应值修改 当LUT输出值是与第一值不同的第二值时的数据。