摘要:
A display apparatus includes a passive display, a light source, and a video signal input, in operation in response to a video signal the passive display modulates light from the light source to provide an image, and the intensity of the light source is controlled by the video signal. A method of producing a displayed image using a passive display illuminated by a light source is characterized in controlling the light source to obtain a displayed image with a desired amount of information, gray scale and/or color characteristics. A method of reducing power consumption by a display system in which a light modulating display modulates incident light from a light source to provide images is characterized in controlling power provided to the light source to reduce output thereof for relatively dark images.
摘要:
An apparatus and method for displaying images and an apparatus and method for processing images are provided. The image display apparatus includes an image processor configured to receive an image frame and convert a gradation value of each of a plurality of pixels constituting the image frame to generate a sub image frame; and a controller configured to control a display panel to sequentially display the image frame and the sub image frame.
摘要:
An image processing apparatus which may include a grayscale modulator forming a ΔΣ modulator. The modulator may include an adder that adds the pixel value of an image and an output of a feedback arithmetic unit, a quantizing unit that quantizes an output of the adder and outputs a quantized value including a quantization error as the result of ΔΣ modulation, a subtractor that calculates the quantization error, and the feedback arithmetic unit that filters the quantization error and outputs the filtering result to the adder. The filter coefficient of filtering by the feedback arithmetic unit may be determined such that the amplitude characteristics of noise shaping by the ΔΣ modulator in a frequency band that is equal to or more than an intermediate frequency band are the inverse characteristics of the spatial frequency characteristics of the human eye.
摘要:
The invention provides a source driver, which includes a plurality of channel driving circuits, a polarity-controlling circuit and a boundary judgment unit. In order to avoid abnormal frames caused by the polarity-controlling circuit and special input data, for example, the input data of the FRC algorithm, the source driver employs the boundary judgment unit to prevent the abnormal frames.
摘要:
In a display device in which one frame is divided into a plurality of subframes and a gray scale is expressed by a time gray scale method, there is a problem of pseudo contour. A gray scale is expressed by sequentially adding a weight of each subframe (light emission period, light emission time, and the like). Further, an erasing diode is provided in a pixel. By turning this erasing diode on, the signal stored in the pixel is erased, thereby a non-light emission period is provided. Accordingly, subframes with different light emission periods can be easily formed.
摘要:
The present disclosure relates to the use of inverse dithering of color or grey-scale images. In certain embodiments, an image area may be selected having a center pixel. A predictive value of the image area may be found by averaging the values of the pixels in the image area. This predictive value may be compared to the center pixel's real value. A difference between the real value and the predictive value may then be found and used to diffuse the energy removed from the center pixel to neighboring pixels. By inverse dithering images using an energy diffusion approach, the images may be presented as having a more visually appealing display, even in situations where the images may undergo further edge enhancements.
摘要:
Systems and methods are disclosed to enable the creation and the display of dithered images. Embodiments include techniques that use the relationship between the luminance and the color of a source image as a dithering heuristic. In one embodiment, the luminance and the color of a source image is determined. Each color of the source image is approximated to the nearest hardware color level. The hardware color level is then varied to more closely approximate the luminance of the source image. Any color errors introduced by approximating the luminance of the source image are then diffused to adjacent pixels.
摘要:
A flat panel display device includes a display panel having at least one link pixel which has a non-defect area and a panel defect area and where adjacent pixels are linked to each other; a memory which stores a first compensation data for compensating the data which are to be displayed in the panel defect area, a second compensation data for compensating the data of a bordering part between the panel defect area and the non-defect area, and a third compensation data for compensating the data which are to be displayed in the link pixel. The first compensation data is adjusted through at spatial dispersion or temporal dispersion; the data that are to be displayed in a fixed area inclusive of the boundary are adjusted by dispersing the second compensation data to the fixed area inclusive of the boundary; the data that are to be displayed in the link pixel are adjusted to the third compensation data.
摘要:
Provided are an electrophoresis display device and a driving method thereof. The electrophoresis display device includes a display unit and a frame buffer-free display controller. The frame buffer-free display controller is configured to generate a plurality of derived frames in real-time based on a frame and a plurality of reference values displayed by the display unit.
摘要:
Provided is a display device including a display unit having luminescence elements that individually becomes luminous depending on a current amount. The luminescence elements are arranged in a matrix pattern. The display device comprises a luminescence amount regulator for setting a reference duty for regulating a luminescence amount per unit time for each of the luminescence elements, according to picture information of an input picture signal, and also comprises an adjuster for adjusting, based on the reference duty, an effective duty regulating a luminous time for which the luminescence elements become luminous within a unit time, so that the effective duty is within a predetermined range, and for adjusting a gain of the picture signal, so that a luminescence amount regulated with the effective duty and with the gain of the picture signal equals to the luminescence amount regulated with the reference duty.