Abstract: Provided is a display device having a touch sensor capable of improving touch sensitivity by removing the influence of display noise. The display device includes: a display panel including pixels connected to data lines and scan lines; a scan driver for supplying scan signals to the pixels through the scan lines; a data driver for receiving digital image data, converting the digital image data into an analog data signal, and supplying the analog data signal to the pixels through the data lines; a data variance calculator for calculating a variance in image data for each data channel by using the digital image data, and summing the variance in image data for each data channel to calculate an integrated data variance value; and a plurality of correction value calculators for calculating a touch correction value for each sensing channel by using the integrated data variance value.

Abstract: A display apparatus and an operating method of the display apparatus are provided. The display apparatus includes a display panel, a light luminance sensing circuit, a controller, and a driving circuit. The light luminance sensing circuit senses luminance intensity to generate an output sensing signal. The controller receives the output sensing signal and converts the output sensing signal to generate selecting numeric information according to look-up information. The controller generates a control driving signal according to the selecting numeric information. The look-up information records a corresponding relation between a plurality of electric characteristic values and a plurality of pieces of numeric information. The driving circuit adjusts the luminance intensity of a lighting element according to the control driving signal.

Abstract: Systems and methods are provided for a display device including one or more methods for modifying the display brightness by automatically adapting to ambient lighting conditions.

Abstract: A light source portion includes a plurality of back lights provided corresponding to respective regions obtained by virtually dividing a liquid crystal panel screen into a plurality of parts, the back lights have a light emission intensity controlled based on a light emission intensity value and have ON and OFF operations controlled in response to a light emission driving signal, and the light emission driving signal is constituted to sequentially turn ON the plurality of back lights synchronously with a stereoscopic image signal and to turn ON the plurality of back lights at the same time in a predetermined timing, and is constituted to individually control a light emission period for the plurality of back lights based on image information about the stereoscopic image signal.

Abstract: In one embodiment, a method of lighting is disclosed which includes apportioning a video display screen into a content portion and at least one light portion. The content portion displays video content and the light portion provides auxiliary lighting when energized to illuminate a subject adjacent the video display screen.

Abstract: The present invention provides a liquid crystal display capable of detecting external light by an optical sensor without providing a window in front of a product. A top face of a liquid crystal display panel (18) corresponds to a display surface. A light-guiding plate (19) is disposed on a rear face of the liquid crystal display panel (18). A backlight (9) shown in FIG. 1 is attached to the light-guiding plate (19). Light emitted from the backlight (9) is guided to the display surface of the liquid crystal display panel (18) by the light-guiding plate (19). A reflection sheet (20) is disposed on a bottom face of the light-guiding plate (19). An optical sensor (10) is attached to a side face of the light-guiding plate (19) with its light-receiving face facing the inside of the light-guiding plate (19).

Abstract: This invention relates to a pen type marking device whose marking pen tip is made of diamond and which is used for marking necessary for production control and quality control of substrates such as wafers.

Abstract: An apparatus for marking identification symbols on a wafer including: a marking means for marking identification symbols on the wafer; a reading means for reading the marked identification symbols; a comparing means for comparing data of the identification symbols which are read by the reading means with basic data on which the identification symbols are marked on the wafer, and a judging means for inspecting and judging from a result of the comparison whether the desired identification symbols are marked on the wafer or not.