Chimei Innolux Corporation

Innolux Corporation

Dx Antenna Company, Limited

Yoshikazu Matsui

Naoki Sumi

Kazuyuki Hashimoto

Masahiro Yoshiga

Keitaro Yamashita

Shinji Konoshita

Satoshi Kawata

A display system is provided with a low frequency driving mode. A low frequency display interval of the display system is divided into a charge period and a suspend period in the low frequency driving mode. A backlight brightness of the display system is changed in the suspend period.

Display and backlight controller and display system using the same

A sensing device is provided. The sensing device successively operates in a plurality of operation periods and includes a plurality of first electrodes, a plurality of differential amplifiers, and a plurality of sensing circuits. The first electrodes are disposed successively. The differential amplifiers at least comprise a first differential amplifier and a second differential amplifier. Each of the differential amplifiers comprises a first input terminal and a second input terminal. Each of the sensing circuits has an input terminal and an output terminal. The sensing circuits at least comprise first, second, and third sensing circuits. The input terminals of the sensing circuits are coupled to the first electrodes. The output terminals of sensing circuits are coupled to the differential amplifiers. The output terminal of at least one of the sensing circuits is coupled to both of the first differential amplifier and the second differential amplifier.

Sensing devices and display devices using a plurality of differential amplifiers and sensing circuits to minimize the time to detect presence of an object

The purpose of the invention is to provide a touch panel, a driving method for the touch panel, a program for getting touch information, and a memory media, capable of reducing the influence caused by the operation of a display device to the touch panel. The touch panel having a display driven by alternative voltage and a touch sensor reading the touch information from the input interface periodically, includes a touch information detection part synchronizing the beginning timing of a reading operation of the touch sensor with a frame of the display and detecting the touch data in each frame, and a touch information calculation part calculating an average with respect to an even number of successive frames to get a calculated touch data corresponding to a predetermined frame.

Touch panel, driving method for the touch panel, program for getting touch information, and memory media

An input detection device including: a reading part reading touch inputs from an input interface of a touch sensor by scanning every above two electrode lines which are adjacent on the scanning sequence from an end of the input interface to the opposite end, and acquiring a difference between detection data obtained from a half of the above two electrode lines which are successive and from the other half of the above two electrode lines which are successive; and a calculation part integrating the differences for the entire input interface to obtain touch information, wherein if an integration result obtained in the case where the above two lines stretches over the scanning finish end and the scanning start end is not satisfied with a predetermined value, the calculation part resets the detection data obtained from the electrode line located at the scanning finish end to be the predetermined value.

Input detection device, input detection method, input detection program, and computer readable media

A touch detection method includes: scanning the row electrodes or the column electrodes in sequence to obtain touch data of the touch sensor; labeling a plurality of coordinates as a touch image according to the touch data; mirror copying the touch data of the touch image corresponding to at least one column electrode and at least one row electrode which are adjacent to an edge of the pixel active area in the x-direction and the y-direction, respectively, to at least one corresponding location which is outside of the touch sensor active area with respect to the edge of the pixel active area; calculating a location (x, y) of the central point of the touch image by a weighted average; and outputting the location (x, y) of the central point of the touch image.

In-cell touch sensor touch area enhancing algorithm

An image processing device comprises a halftoning module, a detecting module, an adding module and a generating module. The halftoning module generates an error diffusion value. The detecting module detects an edge at a current pixel of an image. The adding module adds the pixel value of the current pixel with one of the error diffusion value and an error diffusion seed according to the detecting result. The generating module generates the error diffusion seed. The error diffusion seed is generated by a formula based on the pixel value and location of the current pixel and a random number, or the error diffusion seed is generated by a formula based on the pixel value of the current pixel and a looked-up value, and the looked-up value is retrieved from a look-up table according to the location of the current pixel.

Image processing device using adding module for adding error diffusion value or error diffusion seed

The invention provides an input detection method, wherein when multiple touch points are input a touch sensordetects touch pointsindividually. The detection method includes: scanning a first electrode line, and if a plurality of touch areassandwiching a non-touch areaare detected, labeling the plurality of touch areassequentially; determining the location of the non-touch area as a separation area in the case where the non-touch area between the labels is within a predetermined spacing; when a second electrode line next to the first electrode line where a separation area is detected is scanned, handling the area on the second electrode line corresponding to the separation area on the first electrode line as a separation area; and practicing the above steps for every electrode line and detecting the labels.

Input detection method, input detection device, input detection program and media storing the same

A display device includes a plurality of pixels arranged in a matrix with columns and rows. A source driver provides either analogue or digital image data for the pixels. Each pixel includes a plurality of sub-pixels. Each sub-pixel includes a display components, a memory unit for memorizing gradation display data included in the digital image data provided by the source driver for the display component, and a data switching unit for switching data providing for the display component to either the gradation display data memorized in the memory unit or the analogue image data provided by the source driver.

Active matrix type display device and portable machine comprising the same

A display device having backlight and the backlight control method thereof is provided. Through the provided method, it is capable of fast determining which intensity range the intensity signal from the means for measuring the intensity of external light falls in, so that the turn-off period of backlight is reduced to avoid the decrement of brightness.

Display device and method for controlling backlight thereof

A light intensity detecting device is provided to detect a light intensity according to pulse duration of a pulse signal without being affected by noise, including: a time measuring unit for measuring an elapsed time period of the pulse signal that has been raised; a signal state discriminating unit for obtaining a state of the pulse signal; a sampling unit for directing the signal state discriminating unit to obtain the state at a sampling interval corresponding to the elapsed time period; and a falling detecting unit for detecting the pulse signal that has been fallen when a fallen state of the pulse signal is successively obtained for two times. When the fallen pulse signal is detected, the sampling unit directs the signal state discriminating unit to obtain the state of the pulse signal at a time point, which is output as the pulse duration of the pulse signal.

Light intensity detecting methods and devices, display devices and storage media

A multibeam primary radiator apparatus () includes first, second and third primary horns (). The first primary horn () has a generally circular proximal end aperture () at its proximal end, and a generally circular distal end aperture () at its distal end, which is larger than the proximal end aperture (). The second and third primary horns () have generally circular proximal end apertures () at their proximal ends, and larger distal end apertures () at their distal ends. The first through third primary horns are disposed with the center axes of the respective proximal end apertures being substantially in parallel with each other. The distance between the center axis of the first primary horn () and each of the second and third primary horns () is smaller than the diameter of the proximal end aperture () of the first primary horn (). The distal end aperture () of each of the second and third primary horns () is formed by a semicircular portion (), which is half of a circle having a diameter larger than the proximal end aperture (), on the side remote from the first primary horn (), and also a semi-elliptical portion (), which is half of an ellipse, on the side closer to the first primary horn (). Each semi-elliptical portion () is contiguous to the associated semicircular portion () at the two ends of the major axis thereof, and is located in a void in the distal end aperture () of the first primary horn (). The end of the minor axis of each ellipse is located outward of the proximal end aperture () of the first primary horn ().

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Chu-Nan, Taiwan

Yoshikazu Matsui