Semiconductor device and display device

Abstract

A semiconductor device includes: an LCD controller configured to output a plurality of image signals in parallel; a plurality of signal lines respectively corresponding to the plurality of image signals to be outputted in parallel; a plurality of terminal portions respectively connected to the plurality of signal lines; and delay circuits configured to delay a plurality of image signals, which are divided into a plurality of groups to the extent that the sum of each value of a current flowing through each signal line does not exceed a predetermined current value and outputted from a plurality of terminal portions, by a predetermined delay time from each other among the plurality of groups.

1 . A semiconductor device comprising:
 an image signal output circuit having a plurality of output terminals and configured to output signals in parallel from the output terminals;   a plurality of signal lines respectively connected to the output terminals;   a first delay circuit inserted in signal line of a first group of the signal lines; and   a second delay circuit inserted in signal line of a second group of the signal lines.   
     
     
         2 . The semiconductor device according to  claim 1 , wherein each group of the signal lines comprises two or more signal lines. 
     
     
         3 . The semiconductor device according to  claim 2 , wherein the image signal output circuit outputs image data, and
 a signal outputted to the signal lines represents pixels of the image data.   
     
     
         4 . The semiconductor device according to  claim 3 , wherein the sum of current of each group is below a predetermined value. 
     
     
         5 . A semiconductor device comprising:
 a signal output circuit having a plurality of output terminals and configured to output R, G and B color signals in parallel from the output terminals;   a first signal line connected to one of the output terminals and configured to transmit an R color signal;   a second signal line connected to one of the output terminals and configured to transmit an G color signal;   a third signal line connected to one of the output terminals and configured to transmit an B color signal; and   a delay circuit inserted in at least one of the first, second and third signal lines.   
     
     
         6 . The semiconductor device according to  claim 5 , wherein the first, second and third signal lines respectively transmit R, G and B color signals serially. 
     
     
         7 . A semiconductor device comprising:
 a signal output circuit having a plurality of output terminals and configured to output image signals in parallel from the output terminals;   a first signal line connected to one of the output terminals;   a second signal line connected to one of the output terminals; and   a delay circuit inserted in the first signal line.   
     
     
         8 . A semiconductor device comprising:
 an image signal output circuit having a plurality of output terminals and configured to output signals in parallel from the output terminals;   a plurality of signal lines respectively connected to the output terminals;   a first delay circuit inserted in signal line of a first group of the signal lines;   a second delay circuit inserted in signal line of a second group of the signal lines; and   a display section configured to receive a signal from the signal lines.   
     
     
         9 . The semiconductor device according to  claim 8 , wherein each group of the signal lines comprises two or more signal lines. 
     
     
         10 . The semiconductor device according to  claim 9 , wherein
 the image signal output circuit outputs image data, and   a signal outputted to the signal lines represents pixels of the image data.   
     
     
         11 . The semiconductor device according to  claim 10 , wherein the sum of current of each group is below a predetermined value.