JP2006023481A5 - - Google Patents

Claims (9)

A memory type liquid crystal display device,
A first transparent substrate, a second transparent substrate, a memory liquid crystal sandwiched between the first and second transparent substrates, and driving the liquid crystal formed on the first or second transparent substrate; A liquid crystal panel having a plurality of electrodes;
A power supply unit for supplying power to at least the liquid crystal panel;
A sensor that outputs information related to a light and dark state around the liquid crystal panel ;
By controlling the driving voltage applied to the plurality of electrodes, and in response to said output from the sensor, the display control unit controls to highlight the liquid crystal panel,
A memory-type liquid crystal display device comprising: The sensor is an illuminance sensor,
Wherein the display control unit performs the reverse video to indicate that the illumination sensor is in the ambient dark state of the liquid crystal panel, memory-type liquid crystal display device according to claim 1. The sensor is a water depth sensor,
Wherein the display control unit, the water depth sensor performs the reverse video to indicate that the liquid crystal panel exceeds any depth, memory-type liquid crystal display device according to claim 1. Further, the power supply unit is provided with a photovoltaic element,
The sensor is a power generation amount detection sensor that detects a power generation amount of the photovoltaic element,
Wherein the display control unit, said power output detection sensor performs the reverse video to indicate that the power generation amount is smaller than the arbitrary value, memory-type liquid crystal display device according to claim 1. 5. The display control unit according to claim 1, wherein the display control unit performs reverse display so that a display state of all the pixels of the liquid crystal panel is set to one of a white display state and a black display state . The memory type liquid crystal display device according to one item . Furthermore, it has a memory for storing display data for reverse display,
The memory according to claim 1 , wherein the display control unit performs reverse display by displaying the display data for the reverse display on the liquid crystal panel in accordance with an output from the sensor. Liquid crystal display device. The display control unit has a function of inverting the polarity of the voltage generated in the power supply unit, and performs reverse display by inverting the polarity of the voltage generated in the power supply unit according to the output from the sensor. The memory type liquid crystal display device according to any one of claims 1 to 6 . 8. The display control unit according to claim 1 , wherein the display control unit controls the liquid crystal panel to finish the inverted display and to return to a normal display state according to the output of the sensor. Memory type liquid crystal display device. Further comprising a radio clock unit for receiving time information, the reception state detection sensor for detecting a reception state of the radio clock unit,
Wherein the display control unit performs the highlighted only to indicate that said receiving state detection sensor is not receiving the radio clock unit time information, memory according to any one of claims 1 to 8 Liquid crystal display device.