Patent ID: 9007292
Filing Date: 2015-04-14
Classification: G09G

Abstract:
1. A driver circuit for receiving input image data and generating a plurality of drive signals for a display panel, the driver circuit being formed on a substrate, the driver circuit being organized into a plurality of sections, each section including a logic circuit for obtaining a digital value from the input image data and outputting a corresponding first digital signal, a level shifter for performing a level conversion operation on the first digital signal to obtain a second digital signal, a decoder for decoding the second digital signal to obtain a first voltage signal representing a pixel intensity gradation, an operational amplifier for converting the first voltage signal to a second voltage signal representing the pixel intensity gradation, and an output pad for output of the second voltage signal, the second voltage signal having a lower output impedance than the first voltage signal, wherein: the plurality of sections includes a first family of sections and a second family of sections; in the first family, each section is laid out in a first spatial sequence in a first direction on the substrate; the first spatial sequence begins with the logic circuit, continues sequentially through the level shifter, the decoder, and the operational amplifier, and ends with the output pad; in the second family, each section is laid out in a second spatial sequence in the first direction on the substrate; the second spatial sequence begins with the output pad, continues sequentially through the operational amplifier, the logic circuit, and the level shifter, and ends with the decoder; and at least one section in the first family and at least one section in the second family are mutually adjacent.