Abstract: A logic cell structure includes a first portion, a second portion and a third portion. The first portion, arranged to be a first layout of a first semiconductor element, is placed in a first cell row of a substrate area extending in a first direction. The second portion, arranged to be a second layout of a second semiconductor element, is placed in a second cell row of the substrate area. The third portion is arranged to be a third layout of an interconnecting path used for coupling the first semiconductor element and the second semiconductor element. The first, second and third portions are bounded by a bounding box with a height in a second direction and a width in the first direction. Respective centers of the first portion and the second portion are arranged in a third direction different from each of the first direction and the second direction.

Abstract: A structure of an advertisement board is disclosed. The advertisement board comprises a case, a display module, two illumination modules and a power supply module. The display module comprises a transparent element having the advertisement pattern and/or letters thereon, and a reflection layer positioned on a back surface of the transparent element. The light from the illumination modules and/or an external source such as, sunlight, enters the transparent element from the sides and get reflected by the reflection layer to clearly display the advertisement pattern and/or letters. Thus the advertisement board of the present invention not only has a capability to perform excellent display functions but also has the capability to reduce the power consumption.