LCD memory effect
Encyclopedia
- This article is about temporary memory exploited in Liquid Crystal Displays. For the article about the memory effect in batteries see Wikipedia's Memory effectMemory effectMemory effect, also known as battery effect, lazy battery effect or battery memory, is an alleged effect observed in nickel cadmium rechargeable batteries that causes them to hold less charge...
article.
Passive matrix addressing
Passive matrix addressing
Passive matrix addressing is an addressing scheme used in earlier LCD displays, and may be used in future LCD displays. This is a matrix addressing scheme meaning that only m + n control signals are required to address a m × n display...
takes advantage of hysteresis
Hysteresis
Hysteresis is the dependence of a system not just on its current environment but also on its past. This dependence arises because the system can be in more than one internal state. To predict its future evolution, either its internal state or its history must be known. If a given input alternately...
to display images on liquid crystal display
Liquid crystal display
A liquid crystal display is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals . LCs do not emit light directly....
s. Without this effect, passive matrix LCD panels would not be able to display anything. Similarly; Active-matrix LCDs whose pixels use dedicated transistors are sometimes "dead pixels".