Abstract: A liquid crystal display device including a liquid crystal display panel, a light source for providing backlight, and a controller for receiving an external input image signal is disclosed. The liquid crystal display panel includes transmittance pixels and reflective pixels therein. The controller independently controls and regulates the transmittance pixels and the reflective pixels to be either in an active state or in an inactive state based on an intensity of external light, such that the transmittance pixels transmit the backlight based on the external input image signal in the active state and block the backlight irrespective of the external input image signal in the inactive state; and the reflective pixels reflect external light based on the external input image signal in the active state and inhibit reflection of the external light irrespective of the external input image signal in the inactive state.

Abstract: A liquid crystal display device including a liquid crystal display panel, a light source for providing backlight, and a controller for receiving an external input image signal is disclosed. The liquid crystal display panel includes transmittance pixels and reflective pixels therein. The controller independently controls and regulates the transmittance pixels and the reflective pixels to be either in an active state or in an inactive state based on an intensity of external light, such that the transmittance pixels transmit the backlight based on the external input image signal in the active state and block the backlight irrespective of the external input image signal in the inactive state; and the reflective pixels reflect external light based on the external input image signal in the active state and inhibit reflection of the external light irrespective of the external input image signal in the inactive state.

Abstract: Low frequency drive is performed that provides, after a charging period for refreshing a screen, a pause period for pausing the refresh. The length of the charging period is, for example, one frame and the length of the pause period is, for example, 59 frames. When new image data IMD is transmitted from a host to an LCD driver IC during the pause period, an interrupt process where the pause period is allowed to transition to the charging period is performed immediately thereafter. By performing the interrupt process, without waiting for the pause period with the predetermined length to end, the next charging period where refresh based on the new image data IMD is to be performed starts.

Abstract: A drive device of a display panel includes a controller that controls operations of a scanning-control signal output circuit and a common-electrode voltage control circuit, wherein when the controller receives a changeover command that indicates changeover of a scanning order of a plurality of scanning signal lines, the controller controls an operation of the scanning-control signal output circuit so that a scanning order of the plurality of scanning signal lines is changed over between a normal order and a reverse order and controls an operation of the common-electrode voltage control circuit so that a voltage of the common electrode is changed over between a voltage determined in advance for normal-order scan and a voltage determined in advance for reverse-order scan, during a scanning order changeover period as a predetermined period after ending last scanning of a scanning signal line during a frame period in which the changeover command is received.

Abstract: Low frequency drive is performed that provides, after a charging period for refreshing a screen, a pause period for pausing the refresh. The length of the charging period is, for example, one frame and the length of the pause period is, for example, 59 frames. When new image data IMD is transmitted from a host to an LCD driver IC during the pause period, an interrupt process where the pause period is allowed to transition to the charging period is performed immediately thereafter. By performing the interrupt process, without waiting for the pause period with the predetermined length to end, the next charging period where refresh based on the new image data IMD is to be performed starts.

Abstract: Low frequency drive is performed that provides, after a charging period for refreshing a screen, a pause period for pausing the refresh. The length of the charging period is, for example, one frame and the length of the pause period is, for example, 59 frames. When new image data IMD is transmitted from a host to an LCD driver IC during the pause period, an interrupt process where the pause period is allowed to transition to the charging period is performed immediately thereafter. By performing the interrupt process, without waiting for the pause period with the predetermined length to end, the next charging period where refresh based on the new image data IMD is to be performed starts.

Abstract: This liquid crystal display device allows outputs from RS-FF circuits (401 to 409) and switch circuits (411 to 419), which function as a shift register, to be provided as scanning signals that are selectively activated during odd and even scanning line selection periods, by simply changing the potential of an enable signal (EN) (i.e., by simply providing an EN signal line), which achieves interlacing drive that allows a reduction in the number of polarity inversions, thereby making it possible to reduce power consumption and a wiring area for control lines and achieve simple control which allows circuit simplification, resulting in a reduced frame area and a display panel which is compact as a whole.

Abstract: The present invention includes, in addition to transistors each (Mm,n) provided at the intersection of a gate bus line (GLn) with a data bus line (DLm): block potential applying transistors (DMn) connected to respective ends of gate bus lines (GLn) which ends are not connected to a gate driver (11); a potential supply line (VLL) connected to the gate bus lines (GLn) via the block potential applying transistors (DMn); and a blocking signal supplying section (131) for, immediately after the gate driver (11) supplies a first conduction signal for bringing the transistors (Mm,n) into conduction, supplying to the block potential applying transistors (DMn), a second conduction signal for bringing the block potential applying transistors (DMn) into conduction.

Abstract: First and second scanning signal line drive circuits provided in this liquid crystal display device perform interlacing drive. Gate clock signals, gate start pulse signals, and clear signals provided to these drive circuits are supplied through two trunk lines corresponding to two shift register circuits included in each of the drive circuits. Accordingly, when compared to a typical conventional scanning signal line drive circuit including one shift register circuit, the number of bistable circuits connected to one trunk line is halved and the clock signals have lower frequencies, whereby it is possible to further reduce power consumption.

Abstract: There is provided a liquid crystal display device capable of suppressing deterioration in display quality depending on an ambient illuminance at low cost. A mobile device includes a liquid crystal display device, an optical sensor, and an MPU. The optical sensor acquires an ambient illuminance IL, and the MPU supplies a command CM based on the relevant ambient illuminance IL to the liquid crystal display device. A resistor inside the liquid crystal device selects a drive frequency DF in accordance with the ambient illuminance IL, based on the command CM received through an input signal control circuit. A TG respectively supplies a source control signal SCT and a gate control signal GCT to a source driver and a gate driver, based on the drive frequency DF selected by the resistor.

Abstract: An object of the present invention is to provide a drive device, of a display panel capable of performing changeover (reversal) of a scanning order, that can suppress occurrence of screen burn-in, an afterimage, or disturbance of display. In the drive device of the display panel capable of performing changeover of a scanning order, when a reversal command has been given, a timing generator measures timing up to a fall timing of a gate clear signal (CLR4) as a time point when drawing ends. Then, when the gate clear signal (CLR4) completely falls, a setting of an output terminal for a gate driver control signal is changed over between a setting for normal-order scan and a setting for reverse-order scan. As a result, changeover of the gate driver control signal is performed. Moreover, a common electrode voltage (VCOM) is changed over between a voltage for normal-order scan and a voltage for reverse-order scan.

Abstract: Low frequency drive is performed that provides, after a charging period for refreshing a screen, a pause period for pausing the refresh. The length of the charging period is, for example, one frame and the length of the pause period is, for example, 59 frames. When new image data IMD is transmitted from a host to an LCD driver IC during the pause period, an interrupt process where the pause period is allowed to transition to the charging period is performed immediately thereafter. By performing the interrupt process, without waiting for the pause period with the predetermined length to end, the next charging period where refresh based on the new image data IMD is to be performed starts.

Abstract: This liquid crystal display device allows outputs from RS-FF circuits (401 to 409) and switch circuits (411 to 419), which function as a shift register, to be provided as scanning signals that are selectively activated during odd and even scanning line selection periods, by simply changing the potential of an enable signal (EN) (i.e., by simply providing an EN signal line), which achieves interlacing drive that allows a reduction in the number of polarity inversions, thereby making it possible to reduce power consumption and a wiring area for control lines and achieve simple control which allows circuit simplification, resulting in a reduced frame area and a display panel which is compact as a whole.

Abstract: A liquid crystal display device 1 is provided with a liquid crystal display panel 10, which displays an image, and a case 2, which is disposed on the side of the liquid crystal display panel 10 opposite to the display surface side, and covers the side of the liquid crystal display panel 10 opposite to the display surface side. The case 2 includes a plurality of holes 3 that penetrate from the outside to the inside of the case 2, and edges of the holes 3 include projections 3a that protrude from the inner surface of the case 2 towards the inside thereof.

Abstract: Provided is a semiconductor integrated device that supports a high-speed serial interface specification and allows easy debugging to be performed at low cost. An LCD driver (20) is equipped with a display control circuit-side DSI interface (211) and a display control circuit-side single-ended interface (212). A debug mode 0 command is issued through a DSI bus (L1) connected to the display control circuit-side DSI interface (211), and preparations are made to connect a test device (500) to a single-ended bus (L2) connected to the display control circuit-side single-ended interface (212). Thereafter, a debug mode ON command is issued through the DSI bus (L1), so that the operation mode of a display control circuit (200) transitions to a debug mode. In the debug mode, debugging is performed using a signal transmitted through the single-ended bus (L2).

Abstract: When a counter signal line 13 electrically connected to a counter electrode 24 is provided on an active matrix substrate 11 , a coil 14 is formed by allowing a part of the counter signal line 13 to make a loop in a plane parallel to the substrate. To form the coil 14 , two wiring layers provided to the active matrix substrate 11 are used. By inserting the coil 14 in series with the counter signal line 13 , high-frequency noise placed on a counter electrode voltage is suppressed and a liquid crystal applied voltage is stabilized, improving the display quality of a liquid crystal screen. A similar coil may be formed using a power supply line on the active matrix substrate 11. By this, a liquid crystal panel which is highly immune to noise even without providing anti-noise components is provided.

Abstract: A display device with low power consumption having increased added value is provided. There are provided a memory liquid crystal panel (10), a backlight (20), and a PET sheet (30). The memory liquid crystal panel (10) includes a plurality of pixel circuit parts (11) each having a reflecting electrode (12), a transmission electrode (13), and a memory circuit (14A). On the surface of the PET sheet (30), print patterns (32A to 32D) are formed by ink. In a transmission display mode, a region in which the print patterns (32A to 32D) are printed in the PET sheet (30) suppresses transmission of backlight light (Ps) and a region in which the print patterns are not printed transmits the backlight light (Ps) without suppressing light. In such a manner, a sub image (Sp) is additionally displayed in a main image (Mp).

Abstract: The present invention includes, in addition to transistors each (Mm,n) provided at the intersection of a gate bus line (GLn) with a data bus line (DLm): block potential applying transistors (DMn) connected to respective ends of gate bus lines (GLn) which ends are not connected to a gate driver (11); a potential supply line (VLL) connected to the gate bus lines (GLn) via the block potential applying transistors (DMn); and a blocking signal supplying section (131) for, immediately after the gate driver (11) supplies a first conduction signal for bringing the transistors (Mm,n) into conduction, supplying to the block potential applying transistors (DMn), a second conduction signal for bringing the block potential applying transistors (DMn) into conduction.

Abstract: A liquid crystal display module (1) includes a liquid crystal display panel (2) to which a voltage whose polarity is changed in a predetermined cycle for display driving is applied, and an optical sheet (14). A conductive member (18) is disposed between the liquid crystal display panel (2) and the optical sheet (14). The conductive member (18) is connected to a grounding portion. Therefore, even if a voltage whose polarity is reversed is applied to a common electrode of the liquid crystal display panel (2), the effect of an electric field variation on the optical sheet can be reduced.

Abstract: The present image display device starts lighting up LEDs provided in a backlight unit (8) at the end (time t4) of rendering the first frame of a blank image (an entirely black display image) that is displayed for the purpose of solving variations in potential among pixel electrodes upon device activation. As a result, it is ensured that the luminances of the LEDs reach 100% before time t6 at which an input image is started to be displayed, so that changes in luminance due to the lighting up of the backlight unit are not visually recognized upon device activation and also the lighting luminance does not become insufficient at the time of image display.