Abstract: A display device (1) in accordance with an embodiment of the present invention includes: an LCD driving section (20) and an LCD controller (30) for causing an image based on an image signal to be displayed on an LCD (10); and a CPU (40) for supplying an image signal to the LCD controller (30), the LCD controller (30) being configured to supply, to the CPU (40), a control signal that instructs the CPU (40) to supply an image signal, and the CPU (40) being configured to supply an image signal in a case where the CPU (40) receives a control signal.

Abstract: Included are: refresh a rate changing section (15) for changing a refresh rate of a display panel (2) by configuring settings for scan periods during each of which a plurality of gate signal lines (G) of the display panel (2) are sequentially scanned and for pause periods during each of which sequential scanning of the plurality of gate signal lines (G) is suspended; and a drive amount control section (20) for controlling, in accordance with a ratio of the scan periods to the pause periods, drive time during which each of the gate signal lines is driven in each of the scan periods.

Abstract: Provided for each data signal line drive circuit (6a, 6b, 6c) are: a voltage generation circuit (61a, 61b, 61c) that generates a drive voltage in accordance with an external voltage; and a voltage determination circuit (63a, 63b, 63c) which determines whether or not a voltage level of at least either the external voltage or the drive voltage falls within a range of allowable voltages, in a case where the voltage level does not fall within the range of allowable voltages, operation of the voltage generation circuits (61a, 61b, 61c) being stopped.

Abstract: A display device (1) includes: a scan line drive circuit (4) which line-sequentially selects from among a plurality of scan signal lines; at least one signal line drive circuit (3) which has a receiving circuit that receives a data signal, and which sequentially supplies the data signal to pixels linked to a scan signal line (6) selected by the scan line drive circuit (4); a timing controller (10) which defines, in accordance with sync signals received from an outside source, a non-scan period during which none of the scan signal lines is selected, and which transmits, to the at least one signal line drive circuit (3), an operation discriminant signal that causes the receiving circuit to be underrun during at least part of the non-scan period thus defined. The at least one signal line drive circuit (3) and the timing controller (10) are provided as separate entities.

Abstract: A source AMP output circuit (10) is provided with a switching circuit (17) for carrying out the following operation. That is, in a case where a polarity is reversed, the switching circuit (17) disconnects a data signal line (S(M)) from output terminals of a positive amplifier circuit (15) and a negative polarity amplifier circuit (16) each included in the source AMP output circuit (10), and then connects the data signal line S(M) to a power supply which is in a power supply voltage range (Vdd1 to Vdd3) of the positive polarity amplifier circuit (15) or to a power supply which is in a power supply voltage range (Vdd2 to Vdd4) of the negative polarity amplifier circuit (16).

Abstract: A display device (1) in accordance with an embodiment of the present invention includes: an LCD driving section (20) and an LCD controller (30) for causing an image based on an image signal to be displayed on an LCD (10); and a CPU (40) for supplying an image signal to the LCD controller (30), the LCD controller (30) being configured to supply, to the CPU (40), a control signal that instructs the CPU (40) to supply an image signal, and the CPU (40) being configured to supply an image signal in a case where the CPU (40) receives a control signal.

Abstract: There is provided an image display device, in which a pixel includes sub-pixels of four or more colors that include a color in addition to the three primary colors, and which can display a high-quality image in which false colors or artifacts are suppressed. The image display device includes a pixel area in which a plurality of pixels P are arranged in a matrix shape, and each of the pixels P includes m (m is an integer which is equal to or greater than 4) sub-pixels SP. When it is assumed that the colors of the m sub-pixels SP included in one pixel are C1, C2, . . . , and Cm, the m sub-pixels SP which are sequentially arrayed from an arbitrary position include all of the colors of C1, C2, . . . , and Cm in both the vertical direction and the horizontal direction in the pixel area.

Abstract: A display device (1) in accordance with the present invention includes a detection section (21) provided along a display panel (11) and detecting an approach or a contact of an object. The detection section (21) detects the approach or the contact of the object in a period which (i) is from a time point when supply of a scanning signal to a gate signal line (G) is started to a time point when supply of the scanning signal to a subsequent gate signal line (G) is started but (ii) excludes a rising period of a source signal supplied to a source signal line (S).

Abstract: A drive device of the present invention includes a VCOM selection circuit (122) for switching, before a display panel (102) is turned off, an electric potential of a counter electrode COM of each of pixels P from a VCOM1 to a VCOM2 which causes an electric potential of a drain electrode of each of the pixel P to be identical to the electric potential of the counter electrode COM after the display panel (102) is turned off.

Abstract: A liquid crystal display device capable of reproducing colors faithfully is provided. The liquid crystal display device includes a color gamut conversion unit that generates an RGB signal for a liquid crystal panel (RGBout), which is provided to a liquid crystal panel, by converting data values of respective colors included in an input RGB signal (RGBin) in accordance with the color gamut of the input RGB signal (RGBin) and the color gamut of the liquid crystal panel. When the color gamut of the input RGB signal (RGBin) is included within the color gamut of the liquid crystal panel, colors represented by the input RGB signal (RGBin) are faithfully reproduced on the liquid crystal panel by providing the RGB signal for liquid crystal panel generated by the color gamut conversion unit to the liquid crystal panel.

Abstract: Included are: refresh a rate changing section (15) for changing a refresh rate of a display panel (2) by configuring settings for scan periods during each of which a plurality of gate signal lines (G) of the display panel (2) are sequentially scanned and for pause periods during each of which sequential scanning of the plurality of gate signal lines (G) is suspended; and a drive amount control section (20) for controlling, in accordance with a ratio of the scan periods to the pause periods, drive time during which each of the gate signal lines is driven in each of the scan periods.

Abstract: A lens cap (3) is arranged to cover a light-emitting surface (23) of a light source (2), the lens thereby guiding light from the light source (2) in oblique directions relative to the light source (2). The lens cap (3) includes, in a planar view, a light transmitting region (33) and a light blocking region (34), the light transmitting region (33) divided into a plurality of light transmitting regions by the light blocking region (34) so that the light from the light source (2) passes through the plurality of light transmitting regions (33) and is separated into beams traveling in different directions.

Abstract: A memory access section 16 writes, in a memory (10), a received image signal, in a case where a current frame is one that is located right before a frame in a scanning signal. On the other hand, the memory access section 16 does not write, in the memory (10), a received image signal, in a case where the current frame is one that is located right before a frame in a pause period. This allows a further reduction in electric power used to write, in the memory (10), an image signal received from outside.

Abstract: In one or more example embodiments, a display controller includes a stable pixel writing period in one horizontal period in a display device, the stable pixel writing period being a period during which a voltage outputted from a gate driver is at a high level. The display controller also includes a first stable pixel writing period determination circuit which determines, by using a reference signal independent from the frame rate in the display device, the stable pixel writing period during which the voltage is at the high level. Thus, the display controller can be provided in which, regardless of whether and how the frame rate is changed, the stable pixel writing period can be of a target length.

Abstract: A display device (1) includes (i) refresh rate changing means (15) for changing a refresh rate of a display panel (2) and (ii) a polarity reversal controlling section (20) for changing, in accordance with a change in the refresh rate, at least one of a temporal cycle and a spatial cycle of a polarity reversal of a source signal.

Abstract: A polarity inversion control section (9) supplies a polarity designation signal, which designates a polarity of a data signal, to a data line drive circuit (5) while reversing a polarity of the polarity designation signal every frame. Even in a case where a pause driving control section (8) receives a designation signal that designates a sum of the number of frames constituting a scanning period and the number of frames constituting a pause period to be an even number, the pause driving control section (8) maintains the sum of the number of frames constituting a scanning period and the number of frames constituting a pause period to be an odd number.

Abstract: A display device including a display panel and repeating a scanning period during which the display panel is scanned and a pause period during which the display panel is not scanned. A scanning period and a pause period are set successively to a preceding frame out of two consecutive frames. A pause period is set to an entire period of a subsequent frame out of the two consecutive frames.

Abstract: A display device; a method for driving the display device; and electronic equipment, each enabling a detection device to perform detection with a frequency higher than a refresh frequency of the display device and with improved accuracy are provided. The display device has a screen including pixels and repeatedly alternates between a scanning frame during which the pixels are scanned to be sequentially brought into a selected state and a pause frame during which the pixels are not scanned, and includes a detection instructing circuit configured to output detection operation control signals corresponding to touch panel detection periods to the detection device in at least one pause frame. The detection instruction signal instructs the detection device to detect at least one of detection targets which are input by touching or approaching the screen and a radio wave coming from outside the display device.

Abstract: A backlight device that achieves high efficiency for a plurality of input voltages includes: a converter circuit; a first light-emitting element column and a second light-emitting element column each including one or more light-emitting elements connected in series; and a group of switches configured to control electrical connection between the converter circuit, the first light-emitting element column and the second light-emitting element column, wherein the group of switches are switched between a plurality of connection states including a first connection state in which the first light-emitting element column and the second light-emitting element column are in series and connected with the converter circuit and a second connection state in which the first light-emitting element column and the second light-emitting element column are in parallel and connected with the converter circuit.

Abstract: A display device (10) includes a timing control section (13) and a signal line drive circuit (16), either of which receives a lower power supply voltage level than the other, and a level changing circuit (20) for changing an amplitude level (T) of a reset signal (B). The timing control section (13) and the level changing circuit (20) receive the reset signal (B). The level changing circuit (20) changes the amplitude level (T) of the supplied reset signal (B) and then supply, to the signal line drive circuit (16), a reset signal (Ba) with a converted amplitude level. This makes it possible to achieve an image display with low power consumption and a stable display quality.