| Patent application number | Description | Published |
|---|
| 20090115718 | LIQUID CRYSTAL DISPLAY METHOD AND THE APPRATUS THEREOF - The present invention discloses a liquid crystal display method, which can adjust the brightness of different segments of backlight according to the different images. Especially, the present invention discloses a liquid crystal display method, which includes: receiving a image signal; analyzing the image signal; dividing the image into at least two image segments according to the analysis result of the image signal; dividing the backlight into at least two backlight segments according to the division result of the image; adjusting the brightness of the backlight in each backlight segment; adjusting the image signal in each image segment. The liquid crystal display method of the present invention divide the image and the backlight according to the image signal, while adjusting the brightness of the image and backlight in each segment to not only decrease the power consumption of the liquid crystal display, but also increase the contrast of the image signal, thereby improving the effect of liquid crystal display. | 05-07-2009 |
| 20090251400 | LCD DISPLAY METHOD - The present invention offers a display method, which can adjust the brightness of backlight by the brightness correction of the backlight, thereby not only decreasing the power consumption, but also solving the problem of blinking backlights. Especially, the display method of the present invention comprises: receiving an image signals, calculating the typical brightness of said image signal, calculating the brightness correction of the backlight according to the typical brightness of said image signal and the brightness of the backlight, adjusting the brightness of the backlight according to the brightness correction of the backlight, and adjusting said image signal. The display method of the present invention is correcting the image gray and contrast by applying the algorithm of slow changing of backlight according to the brightness scale of the input image, while adjusting the brightness of the backlight, therefore unchanging or increasing the subjective image effect, preventing the blinking of the backlight and improving the quality of the display. | 10-08-2009 |
| 20140210841 | METHOD, DEVICE AND SYSTEM FOR COMPENSATING BRIGHTNESS OF A LIQUID CRYSTAL MODULE - A method for compensating the brightness of a liquid crystal module involves acquiring an image of a liquid crystal module to obtain the acquired image. The acquired image of the liquid crystal module is compared with a standard image to find a dark region. The compensation coefficient of each pixel in the dark region is calculated. In a display control circuit of the liquid crystal module, the calculated compensation coefficient of pixels is stored for compensating the backlight unit corresponding to pixels in dark region. | 07-31-2014 |
| 20150029237 | TV Set, Method Of Controlling Backlight Of Liquid Crystal Panel And Storage Medium - A TV set including a liquid crystal panel, a processor-readable storage medium storing instruction units for providing the TV set functions to control backlight of the liquid crystal panel; and one or more processors in communication with the storage medium to execute the instruction units, wherein the instruction units include: an image information amount determining unit ( | 01-29-2015 |
| 20150364111 | BACKLIGHT CONTROL METHOD AND DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - Embodiments provide a backlight control method and device and a liquid crystal display device, which relate to the liquid crystal display field and are used to achieve the purposes of meeting the requirements on different image quality enhancements in different display regions of the liquid crystal screen and improving the display quality and the sense of display layering of pictures. The method comprises: dividing n backlight subregions into m backlight regions; acquiring an average backlight value of each backlight region among the m backlight regions; searching, from a pre-acquired gain search table, a gain value corresponding to the average backlight value of each backlight region among the m backlight regions; adjusting backlight values of backlight subregions contained in each backlight region correspondingly according to the gain value corresponding to each backlight region; and outputting adjusted backlight values of the n backlight subregions. The embodiments are applicable to backlight adjustment scenes. | 12-17-2015 |
| 20150365621 | BACKLIGHT CONTROL APPARATUS OF LIQUID CRYSTAL PANEL, LIQUID CRYSTAL TV SET AND MCU CHIP - A backlight control apparatus of a liquid crystal panel, a liquid crystal TV set and an MCU chip are disclosed, and the apparatus includes: an FRC chip, an MCU chip connected with the FRC chip, and a backlight drive chip connected with the MCU chip; and calculates brightness data of N image zones of a current image frame, converts the brightness data of the N image zones into backlight values of N backlight zones and sends the backlight values to the Micro Controller Unit (MCU) chip; and divides the N backlight zones into M backlight areas, searches a preset gain curve for a gain corresponding to each backlight area according to the average of the backlight values of the backlight zones included in the each backlight area, and adjusts the backlight values of the N backlight zones by M gains searched for. | 12-17-2015 |
| 20160071487 | BRIGHTNESS COMPENSATING METHOD AND SELF-ILLUMINATING DISPLAY DEVICE - Embodiments of the application provide a brightness compensating method and a self-illuminating display device. The brightness compensating method includes: retrieving a table of compensation parameters pre-stored in the self-illuminating display device, which includes compensation parameters of the N zones, where a compensation parameter of a zone at higher temperature than the temperature in the reference zone is smaller than G, and a compensation parameter of a zone at lower temperature than the temperature in the reference zone is larger than G; and compensating for the brightness of an image displayed in each of the N zones according to the compensation parameters. The embodiments of the application can be applicable to compensation for the brightness of the self-illuminating display device. | 03-10-2016 |
| 20160078830 | Driving Backlight Method, Display Device And Storage Medium - The present disclosure provides a backlight driving method and device and a display device, wherein the backlight includes a plurality of backlight scanning areas, each luminous body corresponding to each backlight scanning area is driven independently, including: acquiring display gray scale of a current frame of image and that of a previous frame of image in a backlight scanning area; determining a first backlight duty ratio according to the display gray scale of the current frame and that of the previous frame; if black frame insertion time in the first backlight duty ratio is smaller than a first black frame insertion time, acquiring a second backlight duty ratio, wherein black frame insertion time in the second backlight duty ratio is not less than the first black frame insertion time; determining drive timing of the luminous bodies in the current frame according to the second backlight duty ratio. | 03-17-2016 |
| 20160102816 | LIGHT EMITTING DEVICE AND BACKLIGHT SOURCE - The light emitting device includes a light emitting diode and an optical lens, the optical lens includes a light incidence surface and a light exit surface, the light incidence surface includes a first light incidence surface and a second light incidence surface, herein the ratios of the minimum ones to the maximum ones of the distances between respective points, on the first light incidence surface or the second light incidence surface, and the center of the light emission surface respectively belongs to [0.5, 0.7] or [0.683, 0.695]; and the convex surface includes a first light exit surface and a second light exit surface, herein the ratios of the minimum ones to the maximum ones of the distances between respective points, on the first light exit surface or the second light exit surface, and the center of the light emission surface respectively belongs to [0.771, 0.913], or [0.883, 0.921]. | 04-14-2016 |
