Abstract: The present invention is applied to e.g. a liquid crystal display apparatus based on a multi-bit memory system. In the invention, input image data (SIG) is recorded in a memory part 62 in each pixel, and the grayscale is represented by time-division driving in accordance with the input image data (SIG) recorded in this memory part 62.

Abstract: A liquid crystal display apparatus having little influence of noise and able to improve an SN ratio of a light reception system without requiring a calibration operation when turning on the power, is provided. The apparatus has a plurality of display cells 21 having display circuits 210, light receiving cells 22 each including a light receiving element 221, a reference cell 23 having a configuration equivalent to the configuration of the light receiving cell and blocked from incidence of a light upon the light receiving element 221, and a received light signal processing circuit 6 performing differential signal processing of an output signal of the light receiving cell 22 and an output signal of the reference cell 23 and deleting noise.

Abstract: An image-pickup device includes a photoelectric conversion element 5 that converts light into electric charge, a capacitor 6 that stores electric charge which the photoelectric conversion element 5 has obtained by conversion, reset means 7 for discharging the electric charge in the capacitor 6, and an amplifying thin-film transistor 8 that receives, amplifies, and outputs the electric charge stored in the capacitor 6. In addition, the image-pickup device is configured so that the amplifying thin-film transistor 8 forms a source follower circuit.

Abstract: Disclosed herein is a liquid crystal display apparatus, including: a liquid crystal panel having a display region for displaying an image and having a plurality of pixels disposed in the region; and a pair of first and second polarizing plates provided in an opposing relationship to each other through the display region; the liquid crystal panel including a first substrate, a second substrate opposed in a spaced relationship to the first substrate, and a liquid crystal layer sandwiched by and between the first and second substrates and oriented.

Abstract: A semiconductor circuit which outputs an active potential in a first period and which holds an inactive potential in a second period which is longer than the first period and then outputs the inactive potential, the semiconductor circuit includes a switch element which is connected between a potential supply section which supplies the inactive potential and a circuit output terminal, and which is brought into a conduction state in the second period so as to output the inactive potential to the circuit output terminal.

Abstract: A display apparatus is provided which includes a display element section (2) for displaying an image in an image display region, a light detection sensor (3) for detecting the intensity of light in the image display region or in the proximity of the image display region using a thin film transistor formed on the same insulating substrate (1) as that of the display element section (2), and a light control circuit (5) for controlling the luminance when the display element section (2) displays an image based on a result of the detection by the light detection sensor (3). Since the light intensity is detected by the light detection sensor (3) using the thin film transistor formed on the same insulating substrate (1) as that of the display element section (2), such a situation that the scale of the apparatus increases for light intensity detection can be prevented while good image display under various environments is made possible.

Abstract: Provided is an image pickup device with which object detection can be performed with a good stability no matter in what use conditions. A display area 21 of an I/O display panel 20 is provided therein with a plurality of main sensors 32 each including, as a photosensitive wavelength region, a wavelength region ??23 of detection light for use to detect any proximity object, and a plurality of auxiliary sensors 33 whose photosensitivity in the wavelength region of the detection light is lower than photosensitivity of the main sensors 32. Moreover, with use of a composite image F derived based on a differential image MC obtained by the main sensors 32 and a differential image HC obtained by the auxiliary sensors 33, object information about the proximity object is acquired. Accordingly, even when the proximity object is moving on the display area 21 of the I/O display panel 20, for example, any false signal can be prevented from being generated in the composite image F.

Abstract: An embodiment of the invention provides a liquid crystal display device, including a first substrate; a second substrate; a liquid crystal layer formed between the first substrate and the second substrate; a first sensor electrode formed on the first substrate; a second sensor electrode formed on the second substrate, and disposed so as to be adapted to contact the plurality of first sensor electrodes close to one another by pressing from a side of either the first substrate or the second substrate; and a sensor drive circuit for applying a voltage to a first wiring electrically connected to one of the plurality of first sensor electrodes which the second sensor electrode is adapted to contact by the pressing, and detecting a change in potential of a second wiring electrically connected to another one of the plurality of first sensor electrodes.

Abstract: In an imaging device including imaging elements, a driver configuration which does not require much layout space and ensures a reduced number of wirings is provided. The imaging device includes imaging elements 1 arranged in a matrix or in lines and a single driver circuit 6 disposed along the vertical direction of the matrix or along the direction in which the lines extend to control the driving of the imaging elements 1. Then, the driver circuit 6 serves the double function of a reset driver adapted to reset the imaging elements and a read driver adapted to read out the signals from the imaging elements.

Abstract: A liquid-crystal display panel includes: gate lines each serving as a row-direction line which is one of the rows of a two-dimensional matrix; data signal lines each serving as a column-direction line which is one of the columns of the two-dimensional matrix; a plurality of liquid-crystal pixel sections which are laid out to form the two-dimensional matrix and each placed at the intersection of one of the gate lines and one of the data signal lines; chopper-type comparators each connected to one of the data signal lines and each used for converting the value of a sensor signal read out from one of the liquid-crystal pixel sections connected to the data signal lines into a binary value; and a shift register for converting outputs of the chopper-type comparators from parallel data into serial data and outputting the serial data.

Abstract: A liquid crystal display that is unsusceptible to the effect of a pixel potential during writing of data to a memory, allowing a large margin to be provided against variation in characteristics of transistors forming a pixel circuit, and a portable terminal having the liquid crystal display. In a pixel circuit including a memory circuit (25), separate paths are provided for writing image data from a signal line (16-i) to the memory circuit (25) via a data-write switch (24) and for reading image data held in the memory circuit (25) out into a liquid crystal cell unit via a data-read switch (27). Furthermore, image data are read via a data-read buffer (26). Accordingly, when image data is written to the memory, data held in the memory circuit (25) is not affected by a pixel potential. Thus, a large margin can be provided against variation in the characteristics of the transistors forming the pixel circuit, serving to avoid variation in picture quality due to the variation in the transistor characteristics.

Abstract: The present invention is applied to, for example, a liquid crystal display in which a driving circuit is integrally formed on an insulating substrate, and after a sampling capacitor C3 is charged with a reference current I1 and a gate-source voltage Vgs of a transistor Q14 due to the reference current I1 is set in the sampling capacitor C3, the transistor Q14 is driven to function as a constant current circuit, by the voltage Vgs of the sampling capacitor C3.

Abstract: A display device able to amplify the same input as a power supply voltage of IC by using low temperature polysilicon having high threshold voltage and large variation and an electronic apparatus using the same, including MCK use level shifters 171-1 and 171-2 of a type where a reset operation is periodically necessary, a logic circuit 173 for using a level shift horizontal synchronization signal Hsync to input reset pulses for the MCK level shifters 171-1 and 171-2 having a period of N horizontal periods shifted in phase by M horizontal periods (note, M<N) to the level shifters 171-1 and 171-2 and outputting the resultant signals, and a function of selecting the circuit not performing the reset operation among outputs of the L number of level shifters 171-1 and 171-2 for each M horizontal periods and outputting a level shift master clock LSMCK as a last output signal.

Abstract: A display device is provided and includes a first photosensor that detects the light amount of ambient light of a display area, a second photosensor that detects dark current arising when light is blocked, and changeover switches that select the first photosensor and the second photosensor. The display device further includes a comparator that compares the output of the selected first photosensor or second photosensor with a predetermined reference value, and control means that calculates the difference between the comparison result by the comparator with the first photosensor and the comparison result by the comparator with the second photosensor and controls the amount of light supplied to the display area corresponding to the calculation result. This configuration suppresses the influence of a detection error due to variation in the performance between the photosensors applied to the display device to thereby accurately adjust the amount of light supplied to the display area.

Abstract: Disclosed herein is a display device having an insulating substrate, an effective pixel area formed on the insulating substrate and having at least pixels arranged in the form of a matrix, and a peripheral circuit formed on the insulating substrate so as to surround the effective pixel area, the pixels being driven by the peripheral circuit to display a desired image in the effective pixel area, the display device including an extraneous light sensor provided in the effective pixel area for detecting extraneous light to output an extraneous light quantity detection result for use in controlling the luminance of the image.

Abstract: A liquid crystal display having: a liquid crystal display panel in which a plurality of pixels are two-dimensionally arranged at intersecting points of gate lines as many as a plurality of rows and signal lines as many as a plurality of columns which are wired in a matrix shape; and a plurality of driver ICs for applying a signal potential to each pixel of the liquid crystal display panel through the signal lines of a plurality of columns, wherein the number of output pins of each of a plurality of driver ICs is set to the measure of the total number of signal lines of a plurality of columns, thereby preventing that a fraction occurs in the signal lines.

Abstract: A display apparatus includes: at least one pixel section including a display cell that has a pixel electrode and a light-receiving cell that has a light-receiving element; and a shielding electric conductor configured to electrically shield the pixel electrode on the side of the display cell from the light-receiving element. The shielding electric conductor is formed between the pixel electrode and the light-receiving element and has a fixed potential.

Abstract: Liquid crystal display devices to suffer from low contrast at low temperatures because the frequency characteristics of the liquid crystal dielectric constant are degraded. An active matrix liquid crystal display device performs pre-charging in which a pre-charge signal Psig is written with a pre-charge switch before display signals are written to data lines of a display area with a dated driver. The pre-charge signal Psig is the gray-scale level as obtained when no voltage is applied to liquid crystal, such as a common voltage VCOM, thus increasing the contrast at low temperature.

Abstract: Disclosed herein is a memory element, including a parallel combination of a thin film transistor; and a resistance change element, the thin film transistor including a semiconductor thin film in which a channel region, and an input terminal and an output terminal located on both sides of the channel region, respectively, are formed, and a gate electrode overlapping the channel region through an insulating film to become a control terminal, the resistance change element including one conductive layer connected to the input terminal side of the thin film transistor, the other conductive layer connected to the output terminal side of the thin film transistor, and at least one oxide film layer disposed between the one conductive layer and the other conductive layer.

Abstract: A display device includes: a first detection section configured to detect the light intensity around a display area; a second detection section configured to detect the dark current when light is shielded; and a comparator configured to compare the difference output between the first and second detection section against a given reference value. The display device controls the light intensity supplied to the display area according to the comparison result of the comparator.