Semiconductor integrated circuit for driving display panel, display panel driving module, and display device

A semiconductor integrated circuit configured to drive a display panel, comprising:

• a group of gradation wiring lines of positive polarity including a plurality of gradation wiring lines of positive polarity arranged in juxtaposition;
• a resistance dividing circuit of positive polarity including a plurality of first voltage dividing resistors serially connected to each other, the resistance dividing circuit of positive polarity generating gradation potentials of positive polarity dependent upon resistance values of the first voltage dividing resistors in the gradation wiring lines of positive polarity by providing the first voltage dividing resistors between the gradation wiring lines of positive polarity;
• a group of gradation selector circuits of positive polarity including a plurality of gradation selector circuits of positive polarity arranged in juxtaposition between the gradation wiring lines of positive polarity or along a direction where the gradation wiring lines of positive polarity extend, the gradation selector circuits of positive polarity each selecting one of the group of gradation wiring lines of positive polarity to fetch a gradation potential of positive polarity from the selected gradation wiring line of positive polarity;
• a group of gradation wiring lines of negative polarity including a plurality of gradation wiring lines of negative polarity arranged in juxtaposition in parallel with the gradation wiring lines of positive polarity;
• a resistance dividing circuit of negative polarity including a plurality of second voltage dividing resistors serially connected to each other, the resistance dividing circuit of negative polarity generating gradation potentials of negative polarity dependent upon resistance values of the second voltage dividing resistors in the gradation wiring lines of negative polarity by providing the second voltage dividing resistors between the gradation wiring lines of negative polarity;
• and
• a group of gradation selector circuits of negative polarity including a plurality of gradation selector circuits of negative polarity arranged in juxtaposition between the gradation wiring lines of negative polarity or along a direction where the gradation wiring lines of negative polarity extend, the gradation selector circuits each selecting one of the group of gradation wiring lines of negative polarity to fetch a gradation potential of negative polarity from the selected gradation wiring line of negative polarity, wherein
• the group of gradation wiring lines of positive polarity is divided into first−(n)th groups of wiring lines of positive polarity including a (m)th group of wiring lines of positive polarity and a (m+1)th group of wiring lines of positive polarity (n is a positive integer number meeting 2≦n, m is a positive integer number meeting 1≦m≦n−1),
• the gradation wiring lines of positive polarity constituting the (m)th group of wiring lines of positive polarity and the gradation wiring lines of positive polarity constituting the (m+1)th group of wiring lines of positive polarity are alternately provided,
• the group of gradation wiring lines of negative polarity is divided into first−(n′)th groups of wiring lines of negative polarity including a (m′)th group of wiring lines of negative polarity and a (m′+1)th group of wiring lines of negative polarity (n′ is a negative integer number meeting 2≦n′, m′ is a negative integer number meeting 1≦m′≦n′−1),
• the gradation wiring lines of negative polarity constituting the (m′)th group of wiring lines of negative polarity and the gradation wiring lines of negative polarity constituting the (m′+1)th group of wiring lines of negative polarity are alternately provided,
• the resistance dividing circuit of positive polarity is divided into first −(n)th resistance dividing circuits of positive polarity,
• the first −(n)th resistance dividing circuits of positive polarity include (m)th resistance dividing circuits of positive polarity provided between the gradation wiring lines of positive polarity or on one end side of the direction where the gradation wiring lines of positive polarity extend and connected to the (m)th group of wiring lines of positive polarity, and (m+1)th resistance dividing circuits of positive polarity provided between the gradation wiring lines of positive polarity or on the other end side of the direction where the gradation wiring lines of positive polarity extend and connected to the (m+1)th group of wiring lines of positive polarity,
• the resistance dividing circuit of negative polarity is divided into first −(n′)th resistance dividing circuits of negative polarity,
• the first −(n′)th resistance dividing circuits of negative polarity include (m′)th resistance dividing circuits of negative polarity provided between the gradation wiring lines of negative polarity or on one end side of the direction where the gradation wiring lines of negative polarity extend and connected to the (m′)th group of wiring lines of negative polarity, and (m′+1)th resistance dividing circuits of negative polarity provided between the gradation wiring lines of negative polarity or on the other end side of the direction where the gradation wiring lines of negative polarity extend and connected to the (m′+1)th group of wiring lines of negative polarity, and
• wherein each of the gradation wiring lines of positive polarity constituting the (m)th group of wiring lines of positive polarity is not connected to an adjacent one of the gradation wiring lines of positive polarity constituting the (m+1)th group of wiring lines.