Display device and electronic timepiece

A timepiece, comprising:

• a first polarization separator that transmits therethrough linearly polarized light polarized in a first direction and that does not transmit therethrough linearly polarized light polarized in a direction perpendicular to said first direction;
• a polarization changing element, disposed at a position to receive the linearly polarized light from said first polarization separator, that selects between a state in which a polarization direction is changed and a state in which the polarization direction is not changed;
• a second polarization separator, diametrically opposed to said first polarization separator with said polarization changing element interposed therebetween, that transmits linearly polarized light polarized in the first direction, and reflects linearly polarized light polarized in a direction perpendicular to said first direction;
• a first optical element;
• a light scattering layer laminated on the first optical element;
• and
• a light emitting element laminated on the light scattering layer, the light scattering layer scattering light on a surface of the light emitting element,
• the light emitting element being arranged on a side of said second polarization separator opposite to said polarization changing element.

A timepiece, comprising a lamination of

• a first polarizer that transmits linearly polarized light polarized in a first direction and that does not transmit linearly polarized light polarized in a second direction perpendicular to said first direction;
• a twisted nematic liquid crystal layer that rotates a polarization direction of light passing therethrough in an off state and that does not rotate the polarization direction in an on state;
• a second polarizer that transmits linearly polarized light polarized in a third direction and that reflects, in specular reflection, linearly polarized light polarized in a fourth direction perpendicular to said third direction;
• a first optical element;
• a light scattering layer laminated on the first optical element, and
• a light emitting element laminated on the light scattering layer, the light scattering layer scattering light on a surface of the light emitting element.

A timepiece, comprising a lamination of:

• a first polarizer that transmits polarized light polarized in a direction parallel to a first polarization direction while absorbing polarized light polarized in a direction perpendicular to said first polarization direction;
• a liquid crystal layer that rotates the polarization direction of incident light by 90 degrees in a non-voltage applied state and that does not rotate the polarization direction of the incident light in a voltage-applied state;
• a polarization separator that transmits polarized light polarized in a second polarization direction and that reflects polarized light polarized in a direction perpendicular to said second polarization direction;
• a first optical element;
• a light scattering element;
• and
• a light emitting element that emits an emission color light, laminated in the above order, the light scattering element scattering light on a surface of the light emitting element,
• when said first polarization direction is parallel to said second polarization direction, a first color light from external light in the non-voltage applied state has a color of the light reflected from said polarization separator while a second color light from the external light in the voltage-applied state has a color of the light transmitted through said first optical element;
• when said first polarization direction is parallel to said second polarization direction, a third color light from the emission of said light emitting element in the non-voltage applied state is black while a fourth color light from the emission of said light emitting element in the voltage-applied state has the color of the light transmitted through said first optical element;
• when said first polarization direction is perpendicular to said second polarization direction, a fifth color light from the external light in the non-voltage applied state has the color of the light transmitted through said first optical element while a sixth color light from the external light in the voltage-applied state has the color of the light reflected from said polarization separator;
• and
• when said first polarization direction is perpendicular to said second polarization direction, a seventh color light from the emission of said light emitting element in the non-voltage applied state has the color of the light transmitted through said first optical element while an eighth color light from the emission of said light emitting element in the voltage applied state is black.