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1. 发明授权

US10170028B2 Data transmission system including encoder and a clock recovery system for display device, data transmission method for display device and display device 有权
公开(公告)号：US10170028B2
公开(公告)日：2019-01-01
申请号：US15595641
申请日：2017-05-15
申请人： Renesas Electronics Corporation
发明人： Akio Sugiyama , Takashi Nose , Yoshihiko Hori , Hirobumi Furihata
IPC分类号： G09G5/00 , G09G3/20 , H04L25/49 , H04N7/01 , G06F13/00 , G09G5/18
摘要： A data transmission system for a display device, the data transmission system comprising: an encoder having at least one translation table, encoding m bits of a data into n bits of a data on the basis of the translation table; a parallel-to-serial converter; a clock recovery circuit for recovering a clock from the data encoded and serialized; a serial-to-parallel converter for decoding the n bits of the encoded data to the m bits of the data; and an output driver for outputting a gray scale voltage, wherein an amplitude of the gray scale voltage is determined according to a value of the m bit of the data, and, wherein in the translation table, a larger the amplitude of the gray scale voltage of a bit pattern in 2 m pieces of bit patterns of the m bits of the data, a larger the data change index of the bit pattern.

2. 发明授权

US09747830B2 Data transmission system including encoder and a clock recovery system for display device, data transmission method for display device and display device 有权
公开(公告)号：US09747830B2
公开(公告)日：2017-08-29
申请号：US14726904
申请日：2015-06-01
申请人： Renesas Electronics Corporation
发明人： Akio Sugiyama , Takashi Nose , Yoshihiko Hori , Hirobumi Furihata
IPC分类号： G06F3/038 , G09G5/00 , G09G3/20 , H04L25/49 , H04N7/01 , G06F13/00 , G09G5/18
CPC分类号： G09G3/2018 , G06F13/00 , G09G3/2096 , G09G5/008 , G09G5/18 , G09G2310/027 , G09G2310/08 , G09G2320/064 , G09G2330/06 , G09G2360/127 , G09G2360/16 , G09G2370/00 , H04L25/49 , H04L25/4908 , H04N7/01
摘要： A display device includes an encoder having at least one translation table, and encoding m (m is a natural number) bits of a data to n (n is a natural number and n>m) bits of a data on a basis of the at least one translation table; a clock recovery circuit configured to recover a clock from the data encoded by the encoder; a decoder configured to decode the n bits of the encoded data to the m bits of the data in accordance with the clock recovered by the clock recovery circuit; an output driver configured to output a voltage in accordance with the data decoded by the decoder; and a display element having a pixel applied with the voltage.

3. 发明授权

US09959796B2 Display apparatus and display apparatus control circuit 有权
公开(公告)号：US09959796B2
公开(公告)日：2018-05-01
申请号：US15595246
申请日：2017-05-15
申请人： Renesas Electronics Corporation
发明人： Hirobumi Furihata , Takashi Nose
IPC分类号： G09G3/00 , G09G3/36 , H04N19/136 , H04N5/66 , H04N19/176 , H04N19/132
CPC分类号： G09G3/003 , G09G3/3611 , G09G2370/08 , H04N5/66 , H04N19/115 , H04N19/132 , H04N19/136 , H04N19/176
摘要： A display apparatus includes: a display device; a display device driver which drives the display device; a compression section adapted to an operation of generating compression data by compression processing performed on image data; and a transmission section which, when receiving compressed data from the compression section, transmits the compressed data to the display device driver by using a serial data signal. The compression section performs the compression processing with a data compression ratio selected in response to a frame rate with which the display device driver drives the display device. The display device driver receives the serial data signal from the transmission section, generates decompressed data by decompressing the compressed data transmitted by the serial data signal, and drives the display device in response to the decompressed data. The data compression ratio used in the compression processing is set so that the transmission rate of the serial data signal from the transmission section to the display device driver is kept constant independently of the frame rate.

4. 发明授权

US09697802B2 Display and display control circuit 有权
公开(公告)号：US09697802B2
公开(公告)日：2017-07-04
申请号：US14941205
申请日：2015-11-13
申请人： RENESAS ELECTRONICS CORPORATION
发明人： Hirobumi Furihata , Takashi Nose , Yoshihiko Hori
IPC分类号： G09G5/36 , G09G3/36 , G09G3/34
CPC分类号： G09G5/363 , G09G3/3406 , G09G3/3607 , G09G3/3648 , G09G2310/0264 , G09G2310/08 , G09G2320/0252 , G09G2320/0285 , G09G2330/06 , G09G2340/02 , G09G2340/16
摘要： A display control circuit of a display performs generation of overdrive processed data and detection of a proper direction of overdriving from current frame uncompressed compressed data obtained by performing compression processing and uncompression processing on compressed data corresponding to image data of a current frame, and previous frame uncompressed compressed data obtained by performing the compression processing and the uncompression processing on image data of a previous frame, and generates post-correction overdrive processed data by correcting the overdrive processed data according to the detected proper direction. The display control circuit transmits post-correction compressed data obtained by compressing the post-correction overdrive processed data to a driver as transfer compressed data.

5. 发明授权

US08923636B2 Image processing circuit, and display panel driver and display device mounting the circuit 有权
标题翻译：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：US08923636B2
公开(公告)日：2014-12-30
申请号：US13756264
申请日：2013-01-31
申请人： Renesas Electronics Corporation
发明人： Hirobumi Furihata , Takashi Nose
IPC分类号： G06K9/36 , G09G3/36 , H04N19/176 , H04N19/186 , H04N19/136 , G06T9/00
CPC分类号： G06T9/00 , G06K9/36 , G09G3/3611 , G09G3/3648 , G09G2340/02 , G09G2360/18 , H04N19/12 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/186
摘要： A circuit includes an image decompression circuit configured to receive compressed image data which are generated by compressing image data of a set of pixels of a target block by using a selected compression method selected from a plurality of compression methods based on a correlation among said image data of said set of pixels of said target block, and to generate decompressed image data by decompressing said compressed image data by using a decompression method corresponding to said selected compression method.
摘要翻译：电路包括：图像解压缩电路，被配置为接收压缩图像数据，所述压缩图像数据是通过使用基于所述图像数据之间的相关性的从多个压缩方法中选择的选择的压缩方法压缩目标块的像素集合的图像数据而生成的并且通过使用对应于所述选择的压缩方法的解压缩方法解压缩所述压缩图像数据来生成解压缩图像数据。

6. 发明申请

US20170250843A1 DATA TRANSMISSION SYSTEM INCLUDING ENCODER AND A CLOCK RECOVERY SYSTEM FOR DISPLAY DEVICE, DATA TRANSMISSION METHOD FOR DISPLAY DEVICE AND DISPLAY DEVICE 审中-公开
公开(公告)号：US20170250843A1
公开(公告)日：2017-08-31
申请号：US15595641
申请日：2017-05-15
申请人： Renesas Electronics Corporation
发明人： Akio Sugiyama , Takashi Nose , Yoshihiko Hori , Hirobumi Furihata
IPC分类号： H04L25/49 , G09G5/18 , G09G5/00 , H04N7/01 , G09G3/20
CPC分类号： G09G3/2018 , G06F13/00 , G09G3/2096 , G09G5/008 , G09G5/18 , G09G2310/027 , G09G2310/08 , G09G2320/064 , G09G2330/06 , G09G2360/127 , G09G2360/16 , G09G2370/00 , H04L25/49 , H04L25/4908 , H04N7/01
摘要： A data transmission system for a display device, the data transmission system comprising: an encoder having at least one translation table, encoding m bits of a data into n bits of a data on the basis of the translation table; a parallel-to-serial converter; a clock recovery circuit for recovering a clock from the data encoded and serialized; a serial-to-parallel converter for decoding the n bits of the encoded data to the m bits of the data; and an output driver for outputting a gray scale voltage, wherein an amplitude of the gray scale voltage is determined according to a value of the m bit of the data, and, wherein in the translation table, a larger the amplitude of the gray scale voltage of a bit pattern in 2m pieces of bit patterns of the m bits of the data, a larger the data change index of the bit pattern.

7. 发明授权

US08983214B2 Encoder, decoder, and transmission system 有权
标题翻译：编码器，解码器和传输系统
公开(公告)号：US08983214B2
公开(公告)日：2015-03-17
申请号：US13865734
申请日：2013-04-18
申请人： Renesas Electronics Corporation
发明人： Hirobumi Furihata , Takashi Nose
IPC分类号： G06K9/36 , G06K9/46 , G06T9/00 , H03D3/24
CPC分类号： G06T9/00 , H04L25/4904 , H04L25/4908
摘要： An encoder includes an encoding unit that performs encoding according to a predetermined encoding method, a production unit that produces a special code which is not stipulated in the predetermined encoding method and which exhibits a higher bit change rate than that produced according to the predetermined encoding method does, and an encoding output unit that, if input data items which have not been encoded by the encoding unit are identical to each other, outputs encoded data into which a preceding one of the input data items is encoded by the encoding unit, and outputs a special code as encoded data, into which the succeeding one of the input data items is encoded, successively to the encoded data.
摘要翻译：编码器包括：编码单元，其根据预定的编码方法执行编码;生成单元，其生成在预定编码方法中未规定的并且比根据预定的编码方法产生的更高的比特变化率的特殊码以及编码输出单元，如果未被编码单元编码的输入数据项彼此相同，则输出由编码单元对前一个输入数据项进行编码的编码数据，并输出作为编码数据的特殊代码，其中后续的一个输入数据项被编码到编码数据。

8. 发明授权

US09691342B2 Display device and display device driver 有权
公开(公告)号：US09691342B2
公开(公告)日：2017-06-27
申请号：US14052628
申请日：2013-10-11
申请人： Renesas Electronics Corporation
发明人： Hirobumi Furihata , Takashi Nose
IPC分类号： G06F3/038 , G09G5/00 , G09G3/36 , G09G3/32
CPC分类号： G09G3/3674 , G09G3/32 , G09G3/3648 , G09G3/3688 , G09G2300/0413 , G09G2300/0452 , G09G2340/02 , G09G2370/08
摘要： A display device includes a display device, a driver to drive the source line of the display device, and a control unit to compress image data and generate compression data, and supply transfer data containing compression data to the driver. The control unit includes a first sorter circuit to perform a sorting process on image data, and a compression circuit to perform a compression processing on a first sorted image data output from the sorter circuit and generate compression data. The compression processing performs different processing on image data of sub-pixels corresponding to different colors. The driver includes a decompression circuit to decompress compression data and generate decompression data, a second sorter circuit to perform the sorting process on the image data and generate a second sorted image data, and a display drive circuit to drive a source line in response to the second sorted image data.

9. 发明申请

US20150262522A1 DATA TRANSMISSION SYSTEM INCLUDING ENCODER AND A CLOCK RECOVERY SYSTEM FOR DISPLAY DEVICE, DATA TRANSMISSION METHOD FOR DISPLAY DEVICE AND DISPLAY DEVICE 有权
标题翻译：包括编码器的数据传输系统和用于显示设备的时钟恢复系统，用于显示设备和显示设备的数据传输方法
公开(公告)号：US20150262522A1
公开(公告)日：2015-09-17
申请号：US14726904
申请日：2015-06-01
申请人： Renesas Electronics Corporation
发明人： Akio Sugiyama , Takashi Nose , Yoshihiko Hori , Hirobumi Furihata
IPC分类号： G09G3/20
CPC分类号： G09G3/2018 , G06F13/00 , G09G3/2096 , G09G5/008 , G09G5/18 , G09G2310/027 , G09G2310/08 , G09G2320/064 , G09G2330/06 , G09G2360/127 , G09G2360/16 , G09G2370/00 , H04L25/49 , H04L25/4908 , H04N7/01
摘要： A display device includes an encoder having at least one translation table, and encoding m (m is a natural number) bits of a data to n (n is a natural number and n>m) bits of a data on a basis of the at least one translation table; a clock recovery circuit configured to recover a clock from the data encoded by the encoder; a decoder configured to decode the n bits of the encoded data to the m bits of the data in accordance with the clock recovered by the clock recovery circuit; an output driver configured to output a voltage in accordance with the data decoded by the decoder; and a display element having a pixel applied with the voltage.
摘要翻译：一种显示装置包括具有至少一个转换表的编码器，并且基于a的数据将数据的m（m是自然数）比特编码为数据的n（n是自然数和n> m）比特至少一个翻译表; 时钟恢复电路，被配置为从编码器编码的数据中恢复时钟; 解码器，被配置为根据由时钟恢复电路恢复的时钟将编码数据的n位解码为数据的m位; 输出驱动器，被配置为根据由解码器解码的数据输出电压; 以及具有施加电压的像素的显示元件。

10. 发明申请

US20140104249A1 DISPLAY DEVICE AND DISPLAY DEVICE DRIVER 有权
标题翻译：显示设备和显示设备驱动器
公开(公告)号：US20140104249A1
公开(公告)日：2014-04-17
申请号：US14052628
申请日：2013-10-11
申请人： Renesas Electronics Corporation
发明人： Hirobumi Furihata , Takashi Nose
IPC分类号： G09G3/36 , G09G3/32
CPC分类号： G09G3/3674 , G09G3/32 , G09G3/3648 , G09G3/3688 , G09G2300/0413 , G09G2300/0452 , G09G2340/02 , G09G2370/08
摘要： A display device includes a display device, a driver to drive the source line of the display device, and a control unit to compress image data and generate compression data, and supply transfer data containing compression data to the driver. The control unit includes a first sorter circuit to perform a sorting process on image data, and a compression circuit to perform a compression processing on a first sorted image data output from the sorter circuit and generate compression data. The compression processing performs different processing on image data of sub-pixels corresponding to different colors. The driver includes a decompression circuit to decompress compression data and generate decompression data, a second sorter circuit to perform the sorting process on the image data and generate a second sorted image data, and a display drive circuit to drive a source line in response to the second sorted image data.
摘要翻译：显示装置包括显示装置，用于驱动显示装置的源极线的驱动器以及压缩图像数据并产生压缩数据的控制单元，并向驱动器提供包含压缩数据的传送数据。控制单元包括对图像数据执行分类处理的第一分选器电路和对从分类器电路输出的第一分类图像数据执行压缩处理的压缩电路，并生成压缩数据。压缩处理对与不同颜色对应的子像素的图像数据进行不同的处理。驱动器包括解压缩压缩数据并产生解压缩数据的解压缩电路，第二分选器电路，用于对图像数据执行分类处理并生成第二分类图像数据;以及显示驱动电路，用于响应于第第二排序图像数据。

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