A scan display system includes a picture receiving unit, a scan needle, a picture display screen having first and second opposing surfaces, and a driving unit. The picture receiving unit is configured to receive picture data and transmit the picture data to the scan needle. The driving unit is configured to perform a picture scanning process by moving the scan needle to scan in a horizontal direction and in a vertical direction relative to the surface of the picture display screen at a predetermined frequency. The scan needle is configured to emit light, representative of the picture data, to the first surface of the picture display screen to project image portions, each image portion being formed by the scan needle during the scan. The picture display screen is configured to receive the emitted light on the first surface and display an image comprising the image portions on the second surface.

A scan display system includes a picture receiving unit, a scan needle, a picture display screen having first and second opposing surfaces, and a driving unit. The picture receiving unit is configured to receive picture data and transmit the picture data to the scan needle. The driving unit is configured to perform a picture scanning process by moving the scan needle to scan in a vertical direction relative to the first surface of the picture display screen at a predetermined frequency. The scan needle is configured to emit light, representative of the picture data, to the first surface of the picture display screen to project image lines, each image line being projected by the scan needle during the scan. The picture display screen is configured to receive the emitted light on the first surface and display an image comprising the image lines on the second surface.

In an image display device having a backlight including a plurality of light sources, the backlight is divided into a plurality of areas arranged in the same direction as an order of writing to pixels. A backlight drive circuit sets lighting periods separately for each of the areas and causes the brightness of the light sources to rise and drop in a non-step manner during the corresponding lighting period. In a case where first and second areas are adjacent to each other, there is a period of overlap between a lighting period set for the first area and a lighting period set for the second area, and the period of overlap includes a middle portion in which the brightness of light sources corresponding to the first area drops and the brightness of light sources corresponding to the second area rises.

The present invention has a pixel which includes a first switch, a second switch, a third switch, a first resistor, a second resistor, a first liquid crystal element, and a second liquid crystal element. A pixel electrode of the first liquid crystal element is electrically connected to a signal line through the first switch. The pixel electrode of the first liquid crystal element is electrically connected to a pixel electrode of the second liquid crystal element through the second switch and the first resistor. The pixel electrode of the second liquid crystal element is electrically connected to a Cs line through the third switch and the second resistor. A common electrode of the first liquid crystal element is electrically connected to a common electrode of the second liquid crystal element.

A LED dimming circuit, configured to control a plurality of LED strings to light up at different moment in a cycle, the circuit includes several sets of LED strings connected in parallel respectively; driving circuits coupled to the LED strings and driving them to light up; control circuits coupled to the driving circuits to control the LED series to light up by inputting pulse width modulated signals to the driving circuits; the control circuit includes a voltage comparator and a delay circuit, the voltage comparator is coupled between the delay circuit and the driving circuit, each delay circuit and each driving circuit are connected in series thereof, the delay circuit converts the pulse width modulated signal to a delay signal, the voltage comparator converts the sine wave signal to a square wave or a rectangular wave signal.

An image display apparatus includes a conversion analog signal generator. A histogram value output section outputs histogram value data of image data of pixels of a line. An accumulator accumulates the histogram value data. The cumulative sums represent the number of analog switches turned off among a plurality of analog switches. A ramp signal data generator generates ramp signal data having a non-linear slope variably-controlled in accordance with the cumulative sum so as to reduce voltage fluctuation of the ramp signal due to load variation caused depending on the number of analog switches turned off. A DA converter converts the ramp signal data to an analog ramp signal and supplies the analog ramp signal to the plurality of analog switches.

To provide an active matrix display device in which power consumption of a signal line driver circuit can be suppressed, so that power consumption of the entire memory can be suppressed. A plurality of memory circuits which can write data of a video signal input to a pixel in one line period and can hold the data are provided in a signal line driver circuit of a display device. Then, the data held in each memory circuit is input to a pixel of a corresponding line as a video signal. By providing two or more memory circuits in a driver circuit, pieces of data of video signals corresponding to two or more line periods can be concurrently held in the memory circuits.

A display panel, a display device and a display control method are disclosed. The display panel comprises a backlight module and a display substrate, wherein the backlight module comprises a plurality of backlight sources having different colors, the display substrate comprises a plurality of pixels, and each of the pixels comprises a plurality of sub-pixels having different colors; sub-pixels of at least one color and backlight sources having the same color are configured to be turned-on during a same time period.

Provided is a liquid crystal display device enabling display without reducing the resolution thereof with respect to an input video signal, and having a reduced number of scanning signal lines. Green first and third pixels (Gx1, Gy1), and a blue second pixel (B1) and a red fourth pixel (R1) are arranged in a Bayer array, the first pixel is connected to a first scanning signal line (Gn) and a first data signal line (Sm), and the second pixel is connected to the first scanning signal line (Gn) and the first data signal line (Sm).

A liquid crystal display apparatus includes the following elements. A liquid crystal display panel section includes a liquid crystal display panel. A backlight section, placed on the rear of the liquid crystal display panel away from an image display surface, extends from end to end of the liquid crystal display panel in the horizontal scanning direction and includes a plurality of blocks arranged in the vertical scanning direction. A circuit section performs control in the first one of a plurality of sub-frames having the same contents displayed on the liquid crystal display panel so that a block irradiating a portion, where an image segment is being updated, in the liquid crystal display panel is turned off, and performs control in another sub-frame other than the first sub-frame so that the block irradiating the portion, where the image segment is being updated, in the liquid crystal display panel is turned on.