76results about How to "Reduce backlight brightness" patented technology

An AV device comprises a processing section for carrying out a process for view and listening, a signal output section for outputting a signal to the processing section, first signal input sections including a mobile audio input terminal, a first detecting section for detecting insertion/removal of a plug into/from the mobile audio input terminal, and a first control section for controlling the connection between the first signal input sections and the signal output section according to the result of the detection by the first detection section. Another AV device is provided in which insertion/removal of a plug into/from a second signal input section and indication information is outputted to a second video display section according to the detection result. With such constitutions, various processings can be carried out according to insertion/removal of a plug.

The invention discloses a liquid crystal display device comprising a decoding module, a time sequence control module, a liquid crystal drive module, a backlight drive module, a liquid crystal displaypanel and an LED backlight module. The liquid crystal display device is characterized by further comprising a dynamic backlight control module. The invention further discloses a method for processinga digital image signal of a liquid crystal display adjusting device. The invention adopts a method for independently controlling backlight subareas to be capable of reducing or even closing the backlight at parts with darker pictures and really darkening the backlight, so as to improve the picture contrast ratio and change the backlight brightness according to the change of the pictures by independently controlling the backlight subareas, thus reducing power consumption.

The invention discloses a liquid crystal display adjusting device, which comprises a liquid crystal driving module, a backlight driving module, an image signal receiving module, an image caching module, an image analyzing module, a liquid crystal gray scale adjusting module, and a backlight brightness adjusting module. The invention also discloses a method for processing digital image signals forthe liquid crystal display adjusting device, and a liquid crystal display.

A method and an apparatus for controlling a power of a display device including a backlight, and a display device having a power controlling function are provided. The apparatus includes: a histogram analyzer that analyzes a histogram of an input image signal including one or more color components, and determines an intensity clipping based on the analyzed histogram; an image brightness compensation unit that calculates an intensity increasing ratio of the input image signal using the intensity clipping, and applies the intensity increasing ratio to each of the color components to generate an output image signal, an intensity of which is increased; and a backlight brightness controller that controls a brightness of the backlight based on the intensity increasing ratio.

The invention discloses a method, a device and equipment for adjusting the backlight brightness according to human eye characteristics, and provides a method, a device and equipment for adjusting thebacklight brightness of screens. The method includes acquiring image information and environment information and determining human eye characteristic information according to the image information andthe environment information; acquiring display screen information computing screen backlight reducible proportions according to the display screen information, the human eye characteristic information and the image information and determining screen pixel brightness compensation values according to the proportions; adjusting the backlight brightness according to the screen backlight reducible proportions and adjusting screen pixel brightness values according to the screen pixel brightness compensation values. The human eye characteristic information is related to the minimum amplitude of human eye perceptible brightness variation.

The invention discloses a display brightness adjustment method and related equipment. The method comprises: applying to an electronic device comprising a screen and a DPU, the DPU comprising N layer hardware and layer mixers, the N layer hardware comprising first layer hardware and M second layer hardware, N being an integer larger than 1, M being smaller than N, and each layer hardware being connected with the layer mixers. The method comprises the following steps: when an adjustment instruction for the backlight brightness of the screen is detected, setting the backlight brightness value ofthe screen as a first threshold value, then modifying the first layer to reduce the brightness of the first layer, then superposing the modified first layer with a plurality of second layers to obtaina third layer, and finally displaying the third layer through the display screen. By adopting the embodiment of the invention, the screen flickering effect can be reduced.

Aiming at solving the backlight dynamic control problem of a liquid crystal display television (LCD TV), the invention provides a simple and easy LCD TV intelligent dynamic backlight control method, including the following steps: building up an analog function relationship between the current image brightness value and the desired backlight brightness value according to eye comfortableness of a watcher; reading the average brightness value of all frames of images from an image chip, and calculating the current image brightness value through the average brightness value; working out the desired backlight brightness value according to the function relationship between the current image brightness value and the desired backlight brightness value; and finally changing the backlight brightnessof the screen of the LCD TV to be the desired backlight brightness value. The method is simple, easy and mature and can substantially improve the image dynamic contrast ratio of the LCD TV and reach the purposes of reducing the average brightness of the image, improving the eye comfortableness, saving energy and reducing energy consumption.

A display apparatus is disclosed. The display apparatus includes at least one display unit and a host. The host is cooperated with the at least one display unit. The host includes a sensing unit. When the at least one display unit displays a frame, the sensing unit is used to sense a first gaze position on the frame which is watched by an eye and a first distance between the eye and the first gaze position. When the display apparatus determines a first gaze range corresponding the first distance and divides the frame into a first gaze region and a first non-gaze region according the first gaze position and the first gaze range, the display apparatus changes a display parameter of the first gaze region or the first non-gaze region.

The invention relates to an adaptive adjuster of LCD TV display quality and relative method, wherein said adjuster comprises LCD display module, one signal collector for collecting the brightness parameter of image, an image strengthen processing module, one CPU for analyzing the brightness information; the image strengthen processing module is connected to the CPU; the signal collector is connected to CPU; CPU controls the backlight source brightness adjusting port connected to the LCD display module. The invention checks the brightness area ratio of image to automatically decide to reduce the backlight brightness or not; the image strengthen processing module corrects the brightness and extends the black potential of dark area, to limit over brightness, etc. The invention can improve quality and save energy.

A backlight processing system and a method thereof are provided. The gray level values of pixels in an input frame signal are adjusted and the brightness thereof is decreased correspondingly. During gray level value adjustment, the gray level values of the pixels in dark regions are reduced, and the gray level values of the pixels in bright regions are increased. During backlight adjustment, first, statistics information on distribution of the gray level value versus the number of pixels is obtained according to the gray level distribution of the original frame. The number of pixels at each gray level is accumulated. When the accumulation value reaches a certain value, a reference signal is obtained. The brightness of the backlight is then adjusted according to the reference signal.

The present invention discloses a mobile terminal backlight adjustment method and system. Whether a mobile terminal is in a video play state is detected, if yes, a backlight brightness of a non-video play interface on a display interface of the mobile terminal is adjusted, so that the backlight brightness of the non-video play interface is lowered, a problem that content of the non-video play interface interferes human eyes greatly when the mobile terminal plays the video is solved, the video experience of the user is improved, and the user enjoys great convenience.

The invention provides a display method and electronic equipment. The display method is applied to a display device with a direct type backlight source and a liquid crystal display panel, and the direct type backlight source is divided into a plurality of control blocks. The display method comprises the following steps: determining a to-be-displayed image corresponding to to-be-displayed data, and a target control block related to the to-be-displayed image; if the to-be-displayed image and the target control block meet the control condition, adjusting the backlight brightness of the target control block, and adjusting the display data of the pixel units in the display area corresponding to the target control block to be different from the to-be-displayed data. A backlight brightness adjusting technology is combined with gray scale adjustment of a display panel to display an image, so the backlight brightness can be further reduced, and the purpose of saving power consumption of a backlight source is achieved. Due to the fact that the backlight brightness and the gray scale of the display panel are adjusted at the same time, display of more gray scale images can be achieved through different combinations and collocation, and the contrast ratio and the gray scale number of images displayed by the electronic equipment are improved.

A device for removing off overlap and fuzzy of image between pictures consists of the first and the second input control line, the first and the second input data line, the first and the second capacitor, output driving voltage line, the first and the second transistor, back light unit and back light voltage input control line. It features that the first and the second capacitors are earthed, the first and the second input control lines are connected to grid driver and the first and second input data lines are connected to data driver.