摘要:
A liquid crystal display selectively operates in one of a full screen display mode, in which the full screen of the display panel is set as a display area, and a partial display mode, in which a partial area in the full screen is set as a display area and a remaining area is set as a non-display area. The liquid crystal display includes a plurality of gate lines, a plurality of source lines, a plurality of storage capacitor lines that are provided to correspond to the plurality of gate lines, a plurality of pixels that are provided at intersections between the plurality of gate lines and the plurality of source lines, a polarity signal generation circuit that generates a polarity signal corresponding to a frame inversion signal to be repeatedly alternately inverted between a first level and a second level different from the first level for each frame in the display area, and generates a polarity signal corresponding to a fixed signal fixed at one of the first level and the second level in the non-display area, a storage capacitor line driving circuit that changes the potentials of the storage capacitor lines depending on the polarity signal generated by the polarity signal generation circuit, and a control circuit that changes the display area at a timing according to the frame inversion signal.
摘要:
Disclosed herein is a liquid crystal display device having first and second substrates disposed to face each other so as to hold a liquid crystal layer therebetween, and a gate potential creating circuit for outputting a selection potential and a non-selection potential, scanning lines, signal lines, thin film transistors formed so as to correspond to intersection portions between the scanning lines and the signal lines, respectively, pixel electrodes electrically connected to the thin film transistors, respectively, and a gate control circuit for switching the selection potential and the non-selection potential supplied from the gate potential creating circuit over to each other, thereby supplying one of the selection potential and the non-selection potential to corresponding ones of the thin film transistors through corresponding one of the scanning lines being formed on the first substrate, and a common electrode being formed either on the first substrate or the second substrate.
摘要:
A voltage supply circuit includes a first holding element with a first end and a second end that supplies a voltage held between the first end and the second end to a load, the second end being connected to a ground, and a second holding element with a first end and a second end, the first end of the second holding element being electrically connected to the first end of the first holding element. The voltage supply circuit also includes a charging circuit that charges the second holding element with a voltage higher than the voltage to be supplied to the load in a first mode, and a potential adjusting circuit that shifts a potential at the second end of the second holding element towards a potential at the first end of the first holding element according to the voltage held by the first holding element or the second holding element in a second mode exclusive with respect to the first mode.
摘要:
A liquid-crystal display includes a gate line, a gate driver supplying gate signals to the gate line, a source line, a source driver supplying source signals to the source line, a pixel electrode to which the source signals are applied via a pixel switching element connected to the source line, a liquid crystal disposed between the pixel electrode and a common electrode, a common electrode driver supplying common electrode signals to the common electrode, a capacitor disposed between the pixel electrode and a capacitor line, a driving circuit alternately changing the voltage level of the capacitor line between a first level and a second level, and a sequence control circuit. The sequence control circuit performs control such that the common electrode and the source line are short-circuited and supply of power to the source driver, the common electrode driver, and the driving circuit is cut off when a signal for turning off the power to the liquid-crystal display is detected, and that the voltage level of the pixel electrode is set to a ground level after the cutoff of the power supply by turning on the pixel switching element in accordance with a gate signal from the gate driver.
摘要:
An electro-optical device includes a plurality of scanning lines and a plurality of data lines, pixels arranged so as to correspond to intersections of the plurality of scanning lines and the plurality of data lines, and an electro-optical material in which a response speed at a time of halftone display is lower than those at a time of low-gray-scale-level display and at a time of high-gray-scale-level display. Each of the pixels includes at least two adjacent subpixels as a group. Each of the subpixels includes a pixel electrode, a common electrode arranged so as to face the pixel electrode, and a switching device which electrically connects a corresponding one of the data lines to the pixel electrode in accordance with a selection voltage supplied from a corresponding one of the scanning lines. The switching device is connected to the corresponding one of the scanning lines.
摘要:
An electro-optical apparatus is provided which corrects a voltage applied to a pixel with high accuracy. An electro-optical apparatus includes a correction circuit. When, for example, a positive-polarity selection voltage +VS is applied to a scanning line during the second-half period of one horizontal scanning period, the correction circuit detects a spike resulting from voltage switching from a voltage −VD/2 to a voltage +VD/2 on the data lines, determines whether the level of the detected spike is a threshold level or more, and if a determination is made that the level of the detected spike is the threshold level or more, adds a pulse with the same polarity as that of the detected spike to a selection-voltage supply line in the second-half period following the first-half period.
摘要翻译:提供了一种电光装置,其以高精度校正施加到像素的电压。 电光装置包括校正电路。 例如,当在一个水平扫描周期的后半周期期间将一个正极性选择电压+ V S S S施加到扫描线时,校正电路检测由 数据线上的电压-V SUB / 2至电压+ V SUB / 2确定检测到的峰值的电平是否为阈值电平以上,以及 如果确定检测到的峰值的电平是阈值电平或更高,则在上半部分之后的后半段将与检测到的尖峰相同极性的脉冲与选择电压电源线相加 期。
摘要:
An electro-optical device includes: a substrate; a plurality of wiring lines which is formed on the substrate; and an IC which is mounted on the substrate so as to be electrically connected to the plurality of wiring lines. At least a pair of wiring lines among the plurality of wiring lines include a first conductive layer formed on the substrate and a second conductive layer formed on at least the first conductive layer. The first conductive layer and the second conductive layer have different resistance values. The first conductive layer of one of the pair of wiring lines has a plurality of first resistors each extending toward the other wiring line, and the second conductive layer of the other wiring line has a second resistor extending toward the one wiring line. The plurality of first resistors is connected to the second resistor.
摘要:
A liquid crystal display selectively operates in one of a full screen display mode, in which the full screen of the display panel is set as a display area, and a partial display mode, in which a partial area in the full screen is set as a display area and a remaining area is set as a non-display area. The liquid crystal display includes a plurality of gate lines, a plurality of source lines, a plurality of storage capacitor lines that are provided to correspond to the plurality of gate lines, a plurality of pixels that are provided at intersections between the plurality of gate lines and the plurality of source lines, a polarity signal generation circuit that generates a polarity signal corresponding to a frame inversion signal to be repeatedly alternately inverted between a first level and a second level different from the first level for each frame in the display area, and generates a polarity signal corresponding to a fixed signal fixed at one of the first level and the second level in the non-display area, a storage capacitor line driving circuit that changes the potentials of the storage capacitor lines depending on the polarity signal generated by the polarity signal generation circuit, and a control circuit that changes the display area at a timing according to the frame inversion signal.
摘要:
An electrooptical apparatus includes a display unit that emits display light, a light emission stopping unit that stops emission of the display light in the display unit, a light receiving unit that receives outside light around the display unit while emission of the display light is stopped, an accumulating unit that accumulates the amount of outside light received by the light receiving unit, and a calculating unit that calculates the light intensity of outside light on the basis of the time taken for the accumulated amount of outside light received to exceed a predetermined threshold.
摘要:
An electro-optical device includes pixels provided at intersections of a plurality of scanning lines and a plurality of data lines, a scanning line driving circuit for applying a selected voltage to the respective scanning lines, and a data line driving circuit for applying a turning-on voltage or a turning-off voltage to the respective data lines. The data line driving circuit alternately changes between leading-edge driving including applying the turning-on voltage to a data line corresponding to one of the pixels in a period from the starting point of a period when the selected voltage is applied to the scanning line corresponding to the pixel to the point of time after the lapse of time corresponding to the gray scale of the corresponding pixel and trailing-edge driving including applying the turning-on voltage to the data line corresponding to the pixel in a period from a point of time preceding the final point of the period when the selected voltage is applied to the scanning line corresponding to the pixel by the length of time corresponding to the gray scale of the corresponding pixel to the final point.