摘要:
A driving method of a liquid crystal device for recording an image, the liquid crystal device including a liquid crystal layer having a cholesteric liquid crystal, a photoconductor layer accumulated on the liquid crystal layer, and electrodes, includes initializing an entire liquid crystal layer to a focal conic texture by applying a voltage exceeding a threshold value of transition from a planar texture to a focal conic texture, exposing the liquid crystal device imagewise while applying a voltage not exceeding a threshold value from the focal conic texture to a homeotropic texture upon non-exposure but exceeding the threshold value upon exposure and that provides bistability of the focal conic texture and the homeotropic texture with hysteresis upon non-exposure, and fixing a displayed image by releasing an application of voltage to change a part of the liquid crystal layer changed to the homeotropic texture to the planar texture.
摘要:
A driving method of a liquid crystal device for recording an image, the liquid crystal device including a liquid crystal layer having a cholesteric liquid crystal, a photoconductor layer accumulated on the liquid crystal layer, and electrodes, includes initializing an entire liquid crystal layer to a focal conic texture by applying a voltage exceeding a threshold value of transition from a planar texture to a focal conic texture, exposing the liquid crystal device imagewise while applying a voltage not exceeding a threshold value from the focal conic texture to a homeotropic texture upon non-exposure but exceeding the threshold value upon exposure and that provides bistability of the focal conic texture and the homeotropic texture with hysteresis upon non-exposure, and fixing a displayed image by releasing an application of voltage to change a part of the liquid crystal layer changed to the homeotropic texture to the planar texture.
摘要:
The present invention provides a light modulation element in which a visible image is written by simultaneously conducting irradiation of the light modulation element with exposure light according to image information which corresponds to the visible image and application of a voltage, having: a pair of electrodes to which the voltage is applied; a photoconductive layer which, when the light modulation element has been irradiated with the exposure light, shows an electric characteristic distribution corresponding to the intensity distribution of the exposure light; a liquid crystal layer to which a partial voltage derived from the voltage applied to the pair of electrodes and having a distribution corresponding to the electric characteristic distribution of the photoconductive layer is applied to record a visible image having an optical characteristic distribution corresponding to the distribution of the partial voltage; and a light shielding layer disposed between the photoconductive layer and the liquid crystal layer, wherein the photoconductive layer, the liquid crystal layer and the light shielding layer are disposed between the electrodes, and the light shielding layer contains a resin including partially saponified polyvinyl alcohol; and an image display device including the same.
摘要:
A driving method of a stacked light modulating device for recording an image therein, which includes selective reflection layers each having a cholesteric liquid crystal, reflecting light with different wavelengths within a visible range, and being different in a lower threshold value of texture change from a planar to a focal conic texture with respect to an externally applied voltage and an upper threshold value of texture change from the focal conic to a homeotropic texture, and a pair of electrodes disposed outside, includes applying between the pair of electrodes voltages including a voltage V1 and have a same frequency, to select an area exceeding or not exceeding the upper threshold value in each of the selective reflection layers, and applying voltages including a voltage V2 and have a same frequency different from the voltage V1, to select an area exceeding or not exceeding the lower threshold value.
摘要:
A driving method of a stacked light modulating device for recording an image therein, which includes selective reflection layers each having a cholesteric liquid crystal, reflecting light with different wavelengths within a visible range, and being different in a lower threshold value of texture change from a planar to a focal conic texture with respect to an externally applied voltage and an upper threshold value of texture change from the focal conic to a homeotropic texture, and a pair of electrodes disposed outside, includes applying between the pair of electrodes voltages including a voltage V1 and have a same frequency, to select an area exceeding or not exceeding the upper threshold value in each of the selective reflection layers, and applying voltages including a voltage V2 and have a same frequency different from the voltage V1, to select an area exceeding or not exceeding the lower threshold value.
摘要:
A writing device includes: a voltage application unit that applies a voltage to a display medium including a first display layer, second display layer and a photoconductive layer; a first obtaining unit that obtains image data showing an original image; a controller that controls the voltage application unit and the irradiating unit to cause the display medium to show an overlapped image including the obtained original image and an overwritten image overwritten on the original image, the overwritten image including a point corresponding to the location shown by the location information stored in the storage unit.
摘要:
A writing device includes: a display medium including: a first display layer; a second display layer stacked on the first display layer; a first conductive layer and a second conductive layer sandwiching the first display layer and the second display layer; and a photosensitive layer located between the first conductive layer and the second conductive layer; a voltage-applying unit that applies a bias voltage to the first conductive layer and the second conductive layer, a frequency of the bias voltage differing between a case in which a state of the first display layer and a state of the second display layer are changed simultaneously, and a case in which a state of the first display layer and a state of the second display layer are changed separately; and a light outputting unit that irradiates light to the display medium.
摘要:
A recording device includes a first voltage application unit that applies a first voltage to a display layer; a second voltage application unit that applies a second voltage; a first irradiation unit that irradiates to the display layer first light synchronized with the application of the second voltage; a second irradiation unit that irradiates to the display layer a second light after the application of the second voltage is terminated, the second light having a third intensity if the second light is irradiated at an area corresponding to the first tone in the second liquid crystal layer, the second light not being irradiated if the second light is irradiated at an area corresponding to the second tone in the second liquid crystal layer.
摘要:
A recording device includes a first voltage application unit that applies a first voltage to a display layer; a second voltage application unit that applies a second voltage; a first irradiation unit that irradiates to the display layer first light synchronized with the application of the second voltage; a second irradiation unit that irradiates to the display layer a second light after the application of the second voltage is terminated, the second light having a third intensity if the second light is irradiated at an area corresponding to the first tone in the second liquid crystal layer, the second light not being irradiated if the second light is irradiated at an area corresponding to the second tone in the second liquid crystal layer.
摘要:
A method for driving a reflective liquid crystal display having a selective reflection layer to record an image on the reflective liquid crystal display is provided. The method includes: selectively applying two or more kinds of voltages, which includes a voltage V1H exceeding an operation threshold value of the selective reflection layer and a voltage V1L not exceeding the operation threshold value of the selective reflection layer, to the selective reflection layer for a period of time TV1, so as to select, in the selective reflection layer, an area where the operation threshold value is exceeded and other area where the operation threshold value is not exceeded; and applying a voltage V2 to the selective reflection layer, the voltage V2 having a frequency differing from that of the voltages V1H and V1L.
摘要翻译:提供一种用于驱动具有选择反射层以在反射型液晶显示器上记录图像的反射型液晶显示器的方法。 该方法包括:选择性地施加两种或更多种类型的电压,其包括超过选择反射层的操作阈值的电压V 1 H 2和电压V 1 < 不超过选择反射层的操作阈值到选择反射层一段时间T V1,以便在选择反射层中选择操作阈值的区域 超过其他不超过操作阈值的区域; 以及向选择反射层施加电压V 2,电压V 2具有与电压V 1 H H和V 1 L L的频率不同的频率。