A DC motor having a motor housing and a motor controller housed within the motor housing. Black matrixes are formed upon the upper substrate and color filters are formed between the black matrixes. The first and second light sources may be linear light sources. Whenever a price improvement order is currently available for use in a transaction order, a price improvement indicator is displayed to indicate to other traders that price improvement is occurring. A seal material is arranged between the first organic insulating film and the second organic insulating film to attach the first substrate and the second substrate. In one embodiment, a log-antilog circuit for producing an up-converted and an amplified transmission signal comprises a transmission log block configured to receive an input transmission signal and to provide a logarithmically transformed transmission signal as a transmission log block output, and an antilog block coupled to the transmission log block.