Abstract: An image input device capable of acquiring object information irrespective of usage conditions, is provided. The image input device includes a light source, a light source driving section, a first photo-detection element, a photo-detection-element driving section, and an image processing section. The light source driving section drives the light source so that ON period is shorter than OFF period. The photo-detection-element driving section drives the first photo-detection element so that read operations are performed after respective light reception periods which are same in length both in the ON period and in the OFF period. The image processing section generates a first difference image based on an ON image and an OFF image, and acquires the object information based on the first difference image. The ON/OFF images are acquired based on respective output signals from the first photo-detection element in the ON/OFF periods.

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: 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: Disclosed herein is a display apparatus including: a display block configured to have a plurality of picture elements; a switch arranged inside the display block and configured to be closed by an external pressure; a detection block configured to detect whether the switch is closed based on a comparison between a signal supplied from the switch and a reference signal; a precharge block configured to give a precharge potential to a wire conducting with one of electrodes of the switch before detection is executed in the detection block; and a detection block potential supply block configured to give a predetermined potential to a wire conducting with the other electrode of the switch before detection is executed in the detection block.

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: A LCD panel is proposed, which meets analog display mode and memory display mode. The LCD panel includes a capacitive element, first to third switch elements, and a circuit. The first switch element turns ON during a first operation for writing pixel potential from signal line to the capacitive element, and turns OFF during a second operation. The second and third switch elements turn OFF during the first operation. The second switch element turns ON during a readout period in the second operation, to read out the pixel potential from the capacitive element. The third switch element turns ON during a write period in the second operation, to rewrite the pixel potential into the capacitive element. The circuit restores a logic level of the pixel potential read out from the capacitive element, and rewrites inversion of the restored logic level to the capacitive element.

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: A display includes: a display section having a plurality of pixels provided in a region where a first substrate and a second substrate are disposed opposite to each other; a switch provided in the region where the first substrate and the second substrate are disposed opposite to each other, the switch having two electrodes closed by a pressure from outside; a detecting section comparing a signal from the switch with a reference signal to determine whether the switch is closed or not; and a precharge section applying a precharge potential to a wiring in continuity with one of the electrodes of the switch prior to the detection at the detecting section.

Abstract: An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight 15 is emitted to a proximity object from an I/O display panel 20, an electric charge for charging is accumulated in each of image pickup pixels 33 in accordance with total light amount as a summation of reflected light Lon originating from the illumination light and environment light (outside light) L0. Moreover, when the above-described illumination light is not emitted, an electric charge for discharging is released from each of the image pickup pixels 33 in accordance with light amount of the environment light L0. Thereby, a component by the environment light L0 is subtracted in an image pickup signal obtained from each of the image pickup pixels 33, so object information about the proximity object is obtainable without influence of the environment light L0.

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: The present invention is applied, for example, to a liquid crystal display apparatus in which drive circuitry is formed integrally on an insulating substrate, wherein processing results from circuit blocks 41A, 41B on the side of a higher power supply voltage are inputted into the side of a lower power supply voltage through active elements performing on-off operation complementarily, and by the fall of the power supply voltage on this higher side, the output of these active elements is set to a predetermined level.

Abstract: The present invention relates to a flat display apparatus and a flat display apparatus testing method, and is, for example, applicable to a liquid crystal display apparatus where drive circuits are integrally formed on an insulating substrate. The present invention is capable of carrying out a reliable screening of defective pixels so as to effectively avoid deterioration in reliability even in cases where transistors with low withstand voltages are employed. A common line-side wiring pattern COM of wiring patterns LCC and COM of a capacitor of pixels is connected to a precharge circuit externally in an independent manner.

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: A display device and display method are provided. The display device and the display method can prevent generation of noise in delta array pixels of an FRC method, and able to prevent a lowering of an image quality, that is, a display device of predetermined array pixels displaying a (2n+1) gradation by alternately displaying a 2n gradation and a (2n+2) gradation, comprising a modulation pattern generation circuit for generating a spatial/temporal modulation pattern switching a temporal modulation pattern every frame (F) and changing an order of application of a spatial modulation pattern every NF (N is an even number); a data processing circuit for modulating image data in accordance with the modulation pattern generated by the modulation pattern generation circuit; and a drive circuit for driving the display in accordance with the modulated data of the data processing circuit.

Abstract: A display device of a type capable of narrowing the pitch, realizing narrowing of the frame, and further lowering the power consumption and an electronic device using the device, wherein two horizontal drive circuits 13U and 13D employ an RGB selector scheme by storing three digital data in sampling and latch circuits, performing conversion processing to analog data three times by a common digital-to-analog conversion circuit during one horizontal period (H), selecting three analog data in the horizontal period in a time division manner, and outputting the same to data lines (signal lines).

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: 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 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: 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.