DISPLAY DEVICE
According to an aspect, a display device includes: a liquid crystal display panel including a display region in which pixels are arranged, an electro-optical device, and a control circuit. The electro-optical device includes a first substrate including a first electrode, a second substrate including a second electrode, and a liquid crystal layer. The control circuit is configured to operate the electro-optical device in one of a first mode in which a potential difference between the first and second electrodes is set to be zero and a second mode in which the potential difference between the first and second electrodes is set to be larger than zero. In a case where the liquid crystal display panel displays achromatic white in the pixels, chromaticity of the pixels when the electro-optical device operates in the first mode is equal to that when the electro-optical device operates in the second mode.
1 . A display device comprising:
a liquid crystal display panel including a display region in which a plurality of pixels are arranged;
an electro-optical device overlapping the liquid crystal display panel in plan view; and
a control circuit, wherein
the electro-optical device includes
a first substrate including a first electrode,
a second substrate including a second electrode facing the first electrode, and
a liquid crystal layer positioned between the first electrode and the second electrode,
the control circuit is configured to operate the electro-optical device in one of a first mode in which a potential difference between the first electrode and the second electrode is set to be zero and a second mode in which the potential difference between the first electrode and the second electrode is set to be larger than zero, and
in a case where the liquid crystal display panel displays achromatic white in the pixels, chromaticity of the pixels when the electro-optical device operates in the first mode is equal to chromaticity of the pixels when the electro-optical device operates in the second mode.
2 . The display device according to claim 1 , wherein
each of the pixels includes a plurality of sub pixels for displaying different colors, and
in a case where a gradation value of one sub pixel among the sub pixels is maximum and gradation values of sub pixels other than the one sub pixel among the sub pixels are zero, a luminance of the pixel when the electro-optical device operates in the first mode is different from a luminance of the pixel when the electro-optical device operates in the second mode.
3 . The display device according to claim 1 , wherein
each of the pixels includes a plurality of sub pixels for displaying different colors, and
in at least one sub pixel among the sub pixels, a voltage corresponding to a maximum gradation value when the electro-optical device operates in the first mode is different from a voltage corresponding to a maximum gradation value when the electro-optical device operates in the second mode.
4 . The display device according to claim 1 , wherein chromaticity of each of the pixels is represented by coordinates in an xy chromaticity diagram of the CIE 1931 color space.