Abstract: A liquid crystal display device with a touch panel includes: pixel electrodes which is applied a electrical potential corresponding to a gradation value in respective pixels; common electrodes that are a plurality of electrodes which extend in one direction; a liquid crystal layer having a liquid crystal composition whose orientation is changed according to an electric field developed by the pixel electrodes and the common electrodes; and detection electrodes that are a plurality of electrodes which extend in another direction different from the one direction, and detect a touch position on the panel. The common electrodes include a first electrode which is applied a detection potential for detecting the touch position on the panel, and a second electrode to which a potential different from the detection potential is applied during a period in which the detection potential is applied.

Abstract: The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.

Abstract: The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.

Abstract: The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.

Abstract: In a display device using an RGB time division drive system in which RGB data to be supplied to display pixels of three colors RGB are subjected to time-division multiplexing and input to a liquid crystal panel unit, (1) data are input to the liquid crystal panel unit alternately in the order of RGB and BGR every line signal, and a selection signal SC which is in the on-state at a break of one line period is kept in the on-state until the next line period. In addition, (2) over a partial non-display period in partial display, selection signals SA, SB and SC are always in the off-state and an equalize signal EQG is in the on-state.

Abstract: The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.

Abstract: A display device includes a display panel, a flexible printed circuit, and a holder that holds the display panel and the flexible printed circuit. The flexible printed circuit connects to a top surface of the display panel and is bent in the vicinity of a side surface of the display panel, and a part of the flexible printed circuit is disposed between a back of the display panel and the holder, the holder having an opening or a depression in a vicinity of the side surface of the display panel. The flexible printed circuit deflects so that a portion of the part of the flexible printed circuit board projects into a space in the opening or the depression of the holder, as viewed in section.

Abstract: A display device displays corrected externally-supplied video signals, and includes plural pixels, a scanning driver and a signal driver which applies display voltages to signal lines coupled to the pixels. The signal driver includes a first converter which converts a format of the externally supplied video signals into a first format, a memory which stores the video signals from the first converter temporarily, a correction circuit which computes correction values based upon the video signals from the first converter and the video signals in the memory and corrects the video signals from the first converter based upon the correction values, and a second converter which converts the first format of the video signals from the correction circuit to a format of the display voltages. The memory stores the correction values also, and the correction circuit corrects the video signals in the memory based upon the correction values in the memory.

Abstract: A display driver for outputting gradation voltages corresponding to gradation data from an external device to pixels. The display driver includes a generator for generating a plurality of gradation voltages having a plurality of levels based on a reference voltage, and a selector for selecting at least one gradation voltage corresponding to the gradation data from the plurality of gradation voltages generated by the generator. The gradation data includes multi-bits for each color of red, green and blue, and the generator outputs or stops outputting each gradation voltage according to data for color reduction from the external device. The generator stops outputting at least one gradation voltage that is unnecessary for displaying as a result of the color reduction, when the color of the gradation data is reduced according to the data for color reduction.

Abstract: A liquid crystal display device has a liquid crystal display panel which includes: a first substrate; a second substrate; a liquid crystal composition which is sandwiched between the first substrate and the second substrate; a pixel region which is formed of a plurality of pixels arranged in a matrix array on the first substrate, each pixel including a pixel electrode, a counter electrode which faces the pixel electrode in an opposed manner, and a switching element which is electrically connected with the pixel electrode; and a driver circuit which is mounted on the first substrate along a first side of the pixel region.

Abstract: The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.

Abstract: A display device includes a display panel, a flexible printed circuit, and a holder that holds the display panel and the flexible printed circuit. The flexible printed circuit connects to a first side of the display panel and is bent in the vicinity of the first side, and part of the flexible printed circuit is disposed between the back of the display panel and the holder, the holder having an opening or a depression in the vicinity of the first side of the display panel. The flexible printed circuit deflects so that the top projects into a space in the opening or the depression of the holder, as viewed in section.

Abstract: The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.

Abstract: The present invention provides a technique that is capable of preventing a separation of elements of the display panel of a slim display device in which the bending radius of a flexible printed circuit is small. A flexible printed circuit connects to a first side of the display panel proximate to an end surface of the display panel and is bent in the vicinity of the end surface, and a part of the flexible printed circuit is disposed between the back of a backlight and a holder. The holder has an opening or a depression in the vicinity of an end surface of the backlight corresponding to the end surface of the display panel. The flexible printed circuit has a portion which is deflected so that a portion thereof projects into a space in the opening or the depression in the holder, as viewed in section.

Abstract: A display device in which one frame period is divided to a plurality of field periods, it is made possible to set gray scale voltage groups of a plurality of kinds depending on the field period, and a gray scale voltage is equipped with a function of generating and outputting gray scale voltage groups of different kinds according to the field period.

Abstract: A display device mounted on an outside device includes a first display panel, a second display panel, a data driver applying a tone voltage through a common data line, and a scan driver applying a scan signal to the first and second display panels through a scan line for each of the first and second display panels. The display device selects a first display mode or a second display mode in accordance with an instruction from the outside device. The first display mode provides that the first display panel indicates a display state and the second display panel indicates a non-display state, and the second display mode provides that the first display panel indicates the non-display state and the second display panel indicates the display state.

Abstract: In a display device using an RGB time division drive system in which RGB data to be supplied to display pixels of three colors RGB are subjected to time-division multiplexing and input to a liquid crystal panel unit, (1) data are input to the liquid crystal panel unit alternately in the order of RGB and BGR every line signal, and a selection signal SC which is in the on-state at a break of one line period is kept in the on-state until the next line period. In addition, (2) over a partial non-display period in partial display, selection signals SA, SB and SC are always in the off-state and an equalize signal EQG is in the on-state.

Abstract: A display apparatus includes a data driver that is common to a main screen and a sub screen, and the data driver applies, to the main screen, a tone voltage corresponding to display data from a CPU, and during a vertical blanking time-period of the main screen, the data driver applies, to the sub screen, a tone voltage corresponding to black data or white data, and also includes a scan driver scans the main screen and scans the sub screen during the vertical blanking time-period of the main screen.

Abstract: A demultiplexer circuit selects one of data signals, which are sent via an output port of a data driver circuit, on a time division basis, and distributes the data signals to data lines. For high-resolution display, the demultiplexer sequentially distributes data signals to associated data lines. For low-resolution display, the demultiplexer distributes identical data signals to data lines or parts of the data lines. Gate driver circuits each sequentially drive scan lines for high-resolution display, and concurrently or temporarily concurrently drive the scan lines for low-resolution display.

Abstract: The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.