Patent ID: 7982728

Claim:
A display device configured to provide a first observation region with a first picture and a second observation region with a second picture, comprising: a display panel comprising first pixels collectively providing the first picture and second pixels collectively providing the second picture, the first and second pixels forming a matrix; a light-manipulating plate disposed above the display panel and comprising elongated light-passing portions extending in a direction of columns of the matrix and light-manipulation portions disposed along corresponding elongated light-passing portions, the light-manipulation portions being configured to alternate between a light shielding state and a light transmission state; and a control circuit, wherein the light-manipulating plate comprises a first transparent substrate, a second transparent substrate, a liquid crystal layer interposed between the first and second transparent substrates, a plurality of first transparent electrodes disposed on the first substrate and extending in the direction of the columns of the matrix, a second transparent electrode extending along a side of each of the first transparent electrodes, a third transparent electrode extending along another side of each of the first transparent electrodes and a fourth transparent electrode disposed on the second transparent substrate, and the control circuit controls the light-manipulating plate so that the liquid crystal layer above the first transparent electrodes does not allow light to pass and the liquid crystal layer above either the second transparent electrodes or the third transparent electrodes does not allow light to pass, wherein the following relationship is satisfied; S≦R/ 4 where S is a width of the second transparent electrode or the third transparent electrode and R is an interval of the first transparent electrodes.