公开(公告)号：US20120162274A1

公开(公告)日：2012-06-28

申请号：US13178305

申请日：2011-07-07

Applicant: Chang-Hun Cho

Inventor： Chang-Hun Cho

IPC: G09G5/10

CPC classification number: G09G3/3688 ,  G09G2310/027 ,  G09G2320/0673

Abstract: The present invention relates to a 6 bit/8 bit gamma common driving circuit and a method for driving the same, in which a gamma voltage is changed selectively according to a number of received bits by using an R-string for using gamma in common. The 6 bit/8 bit gamma common driving circuit includes a gamma selection unit having an 8 bit receiving terminal for receiving a 6 bit or 8 bit digital data, and the gamma selection unit by passing the 8 bit data received at the receiving terminal, or adding “00” to least significant two bits of the 6 bit data received at the receiving terminal to change the 6 bit data to an 8 bit data and forwarding the 8 bit data, according to an external bit selection BSEL signal; a summing unit for summing most significant 6 bit data of the 8 bit data from the gamma selection unit and forwarding a carry signal “0 or 1”, or summing the 8 bit data from the gamma selection unit and forwarding a carry signal “0 or 1”, according to the bit selection BSEL signal; and a digital-to-analog converter for forwarding an analog signal corresponding to a R-string relevant to the data from the gamma selection unit if the carry signal from the summing unit is “0”, or forwarding an analog signal corresponding to R225 of the R-string if the carry signal from the summing unit is “1”.

Abstract translation: 本发明涉及一种6位/ 8位伽马公共驱动电路及其驱动方法，其中通过使用共同使用伽马的R字串，根据接收位数选择性地改变伽马电压。 6位/ 8位伽马公共驱动电路包括具有用于接收6位或8位数字数据的8位接收终端的伽马选择单元，以及通过传送在接收端接收的8位数据的伽马选择单元，或 将“00”加到接收终端接收的6比特数据的最低有效位，将6比特数据改变为8比特数据，并根据外部比特选择BSEL信号转发8比特数据; 求和单元，用于从伽马选择单元求和8位数据的最高有效6位数据并转发进位信号“0或1”，或从伽马选择单元求和8位数据，并将进位信号“0或 1“，根据位选择BSEL信号; 如果来自求和单元的进位信号为“0”，则转发与伽马选择单元的数据相对应的与R字符串相对应的模拟信号的数模转换器，或者将对应于R225的模拟信号转发到 如果来自求和单元的进位信号为“1”，则为R串。

公开(公告)号：US09990896B2

公开(公告)日：2018-06-05

申请号：US13178305

申请日：2011-07-07

Applicant: Chang-Hun Cho

Inventor： Chang-Hun Cho

IPC: G09G3/30 ,  G09G3/36

CPC classification number: G09G3/3688 ,  G09G2310/027 ,  G09G2320/0673

Abstract: The present invention relates to a 6 bit/8 bit gamma common driving circuit and a method for driving the same, in which a gamma voltage is changed selectively according to a number of received bits by using an R-string for using gamma in common. The 6 bit/8 bit gamma common driving circuit includes a gamma selection unit having an 8 bit receiving terminal for receiving a 6 bit or 8 bit digital data, and the gamma selection unit by passing the 8 bit data received at the receiving terminal, or adding “00” to least significant two bits of the 6 bit data received at the receiving terminal to change the 6 bit data to an 8 bit data and forwarding the 8 bit data, according to an external bit selection BSEL signal; a summing unit for summing most significant 6 bit data of the 8 bit data from the gamma selection unit and forwarding a carry signal “0 or 1”, or summing the 8 bit data from the gamma selection unit and forwarding a carry signal “0 or 1”, according to the bit selection BSEL signal; and a digital-to-analog converter for forwarding an analog signal corresponding to a R-string relevant to the data from the gamma selection unit if the carry signal from the summing unit is “0”, or forwarding an analog signal corresponding to R225 of the R-string if the carry signal from the summing unit is “1”.