Patent classifications
G04G9/12
Liquid crystal control circuit, electronic timepiece, and liquid crystal control method
A liquid crystal control circuit includes: a first terminal that outputs a rewriting signal for rewriting a plurality of pixels; a second terminal that periodically designates a start timing of the rewriting signal; a third terminal that outputs a polarity signal for designating polarity of AC voltage; a first circuit that identifies a next second inversion timing of any first inversion timing at which the polarity is inverted; a calculator that calculates a first start timing after the first inversion timing based on the start timing; a second circuit that determines whether the second inversion timing is within a period from a predetermined time before the first start timing to the first start timing; and an inversion unit that inverts polarity of the polarity signal after the rewriting signal starting from the first start timing is stopped, when the second inversion timing is within the period.
Liquid crystal control circuit, electronic timepiece, and liquid crystal control method
A liquid crystal control circuit includes: a first terminal that outputs a rewriting signal for rewriting a plurality of pixels; a second terminal that periodically designates a start timing of the rewriting signal; a third terminal that outputs a polarity signal for designating polarity of AC voltage; a first circuit that identifies a next second inversion timing of any first inversion timing at which the polarity is inverted; a calculator that calculates a first start timing after the first inversion timing based on the start timing; a second circuit that determines whether the second inversion timing is within a period from a predetermined time before the first start timing to the first start timing; and an inversion unit that inverts polarity of the polarity signal after the rewriting signal starting from the first start timing is stopped, when the second inversion timing is within the period.
LCD AND LED HYBRID DISPLAY SCREEN AND LCD AND LED CLOCK WITH LCD AND LED HYBRID DISPLAY SCREEN
A LCD and LED hybrid display screen has a LCD display screen, a LED display screen overlapping with the LCD display screen, and a drive device for driving the LCD display screen and the LED display screen. The LED display screen has at least one LED pattern and each LED pattern comprises a plurality of strokes is corresponding to at least one LED lamp. The drive device drives the LCD display screen to display at least one LCD display pattern and driving the LED lamp to emit light. A LED display pattern formed by a light emitted by the LED lamp and the LCD display pattern are in one-to-one correspondence. A LCD and LED clock with a LCD and LED hybrid display screen is further provided. Different ambient brightness can be adapted while the power consumption can be reduced through overlapping the LCD display screen with the LED display screen.
LCD AND LED HYBRID DISPLAY SCREEN AND LCD AND LED CLOCK WITH LCD AND LED HYBRID DISPLAY SCREEN
A LCD and LED hybrid display screen has a LCD display screen, a LED display screen overlapping with the LCD display screen, and a drive device for driving the LCD display screen and the LED display screen. The LED display screen has at least one LED pattern and each LED pattern comprises a plurality of strokes is corresponding to at least one LED lamp. The drive device drives the LCD display screen to display at least one LCD display pattern and driving the LED lamp to emit light. A LED display pattern formed by a light emitted by the LED lamp and the LCD display pattern are in one-to-one correspondence. A LCD and LED clock with a LCD and LED hybrid display screen is further provided. Different ambient brightness can be adapted while the power consumption can be reduced through overlapping the LCD display screen with the LED display screen.
DIGITAL DISPLAY DEVICE COMPRISING TWO SUPERIMPOSED DISPLAY CELLS AND TIMEPIECE COMPRISING SUCH A DISPLAY DEVICE
A digital display device including, from top to bottom, a first red filter, a transflective liquid crystal display cell, a second red filter and an emissive display cell, the transflective liquid crystal display cell displaying information using at least one first seven-segment digit and the emissive display cell providing a plurality of juxtaposed light points which are arranged so as to provide a display formed by at least one second seven-segment digit.
DIGITAL DISPLAY DEVICE COMPRISING TWO SUPERIMPOSED DISPLAY CELLS AND TIMEPIECE COMPRISING SUCH A DISPLAY DEVICE
A digital display device including, from top to bottom, a first red filter, a transflective liquid crystal display cell, a second red filter and an emissive display cell, the transflective liquid crystal display cell displaying information using at least one first seven-segment digit and the emissive display cell providing a plurality of juxtaposed light points which are arranged so as to provide a display formed by at least one second seven-segment digit.
DISPLAY DEVICE AND TERMINAL DEVICE
A display device and a terminal device are disclosed. The display device includes a main body and a cover body rotatably connected to the main body, the main body includes a first display screen on a side, close to the cover body, of the main body, the cover body is provided with an accommodating cavity penetrating through the cover body in a direction perpendicular to the first display screen, the cover body includes a second display screen in the accommodating cavity, the second display screen is stacked on the first display screen in the direction perpendicular to the first display screen, and the second display screen is a transparent display screen.
Image display apparatus, image display method and storage medium
The present invention is to reduce an increase in a processing load when a background image is displayed in addition to pointer images indicating pointer movements. A control section displays a plurality of pointer images indicating pointer movements in a timepiece display area of a display section based on time information acquired from a clock circuit. Here, the control section identifies an area where the plurality of pointer images are displayed, such as a pointer movement area or a pointer presence area in the pointer movement area, and controls to perform high-load and low-load display operations with different processing loads on the identified area and an area other than the identified area, such as an outer area outside the pointer movement area or a pointer absence area in the pointer movement area, respectively.
Pixel circuit, liquid crystal display device and wearable device
A pixel circuit includes a scanning signal terminal configured to receive a scanning signal, a data voltage terminal configured to receive a data voltage signal, a switching sub-circuit coupled to the scanning signal terminal and the data voltage terminal, and a latch sub-circuit coupled to the switching sub-circuit. The switching sub-circuit is configured to transmit the data voltage signal to the latch sub-circuit in response to receiving the scanning signal. The latch sub-circuit is configured to latch the data voltage signal to generate a first latch signal in a first display period and a second latch signal in a second display period.
Pixel circuit, liquid crystal display device and wearable device
A pixel circuit includes a scanning signal terminal configured to receive a scanning signal, a data voltage terminal configured to receive a data voltage signal, a switching sub-circuit coupled to the scanning signal terminal and the data voltage terminal, and a latch sub-circuit coupled to the switching sub-circuit. The switching sub-circuit is configured to transmit the data voltage signal to the latch sub-circuit in response to receiving the scanning signal. The latch sub-circuit is configured to latch the data voltage signal to generate a first latch signal in a first display period and a second latch signal in a second display period.