263results about How to "Avoid color cast" patented technology

This invention discloses one display method, which divides the relative original grey values into higher and lower grey values and divides the secondary pixel area into two sets in same color suitable for high and low second grey values; each set displayed grey values are computed from itself pixel and near higher grey value or lower grey value through different weigh proportion to solve the problem if different vision angles.

The invention provides a pixel driving circuit, a pixel driving method and a display device. The pixel driving circuit comprises a driving circuit and a light-emitting duration control circuit. A first end of the driving circuit is connected with a first voltage end, a second end of the driving circuit is connected with the light-emitting element through the light-emitting duration control circuit, and the driving circuit is used for controlling the first end and the second end to be communicated under the control of the voltage of the control end of the driving circuit; and under the controlof the first reset signal and the control scanning signal, the light-emitting duration control circuit switches on or switches off the connection between the second end of the driving circuit and thelight-emitting element according to the control data voltage and the control starting voltage so as to control the light-emitting duration of the light-emitting element. The gray scale is jointly modulated through the driving current and the light emitting time, the output characteristic of the micro light emitting diode under the low gray scale can be guaranteed, and the color cast phenomenon generated when the gray scale of the micro light emitting diode changes is avoided.

Embodiments of the invention provide a light-emitting device and a preparation method thereof as well as a display device, relating to the field of display technologies and solving a problem of light-emitting color cast due to high-energy exciton transfer in the light-emitting device while reducing the energy consumption of the device. The light-emitting device comprises an anode and a cathode which are opposite, a hole transfer layer close to the anode, an electron transfer layer close to the cathode and a light-emitting function layer arranged between the hole transfer layer and the electron transfer layer, wherein the light-emitting function layer comprises at least two layers of quantum dot light-emitting layers capable of emitting different colors of light and a transparent insulating layer arranged between any two adjacent layers of quantum dot light-emitting layers. The method is used for preparing the light-emitting device and the display device comprising the light-emitting device.

The invention discloses a display module and a display device, and relates to the technical field of display. The display module is provided with a display area and a non-display area arranged aroundthe display area, the display module comprises a display panel and a cover plate, and the display panel and the cover plate are attached through optical glue; the display panel comprises an array substrate and a polarizer which are sequentially arranged, and the polarizer is located on the side, close to the cover plate, of the array substrate; the display module comprises at least two layers of ink layers, and the ink layers are located in the non-display area and surround the display area; the at least two layers of ink layers comprise the first ink layer and at least one second ink layer, the first ink layer is arranged on the surface, close to one side of the display panel, of the cover plate, and at least one second ink layer is arranged between the optical glue and the array substrate. Therefore, the height difference between the ink layer on the cover plate and the display panel is effectively reduced so that the phenomena that bubbles are generated in the attaching process andcolor cast is generated in the display process can be avoided, and the requirement for the thinning tendency of the display module and the display device can be met.

The invention discloses an image color enhancement method and device. The image color enhancement method comprises steps of 1, acquiring color components of an image, and transforming the color components into hue, saturation and value (HSV) space from red, green and blue (RGB) space to obtain HSV space parameters, namely, hue, saturation and value; 2, performing gain operation on saturation and value selectively according to judgement on saturation of the HSV space; 3, transforming the obtained HSV space parameters to the RGB space. According to the image color enhancement method, judgement is performed on saturation after the color components are transformed to the HSV space, then the gain operation is performed selectively through a gain function according to results, therefore, the gain operation is performed completely without judgement after transformation in the prior art is avoided, and the image color can be enhanced while color cast of pure color gray scale and skin supersaturation in image display are avoided.

The invention discloses a display panel, a display device and a color film substrate, and belongs to the field of displayers. A special-shaped fringe area of the display panel comprises multiple edgepixels, a shading structure is arranged in the special-shaped fringe area and comprises multiple shading units which are in one-to-one correspondence with the multiple edge pixels. The multiple edge pixels all comprise multiple sub pixels, the shading areas of the shading units on the multiple sub pixels of the same edge pixel are the same, the phenomenon that the pixels generate color cast can beprevented, and meanwhile orthographic projection of the shading units on each sub pixel covers the end, close to a non-display area, of the corresponding sub pixel in the pixel column direction, boundaries of the orthographic projection and the corresponding sub pixels are arcs sinking to the non-display area, the arc design can make the weakening effect of sawteeth of the special-shaped edge area more obvious, and the edge sawtooth effect of the display panel is lowered.

The utility model relates to an active organic light emitting diode display, comprising an image elements array which is provided with a plurality of image elements, wherein every single image elements comprises a luminescence device, a driving device and a selector unit. The luminescence device comprises a first organic light emitting diode, a second organic light emitting diode and a third organic light emitting diode, wherein the organic light emitting diode is formed in the image elements in a superpositioned mode. The drive device is in coupling connection with the voltage source, receiving digital signal and driving the luminescence device according to the displayed data. A unit is chosen and the corresponding organic light emitting diode is chosen and connected according to a control signal. The utility model has the advantages that the opening ratio of the image elements is greatly improved and the color cast can be avoided.

The invention relates to putty powder, in particular to functional diatomite putty powder and a preparation method thereof, wherein the putty powder includes in percent by weight: 10-50% of high-temperature activated diatomite, 5-30% of an inorganic binder, 30-70% of an inorganic filler, 0.01-2% of a functional aid, 0.1-5% of an inorganic pigment, 0.5-5% of an organic binder, and 0.5-5% of an organic aid. The functional diatomite putty powder meets the related standard requirements of putty powder and diatomite, and has qualified constructability and functionality, namely having standard-meeting properties such as humidity regulation, formaldehyde clarifying performance, long duration of formaldehyde purifying performance, mold-proof performance, and mold durability.

The invention relates to a method for adjusting a gamma comparison table through a gamma curve and a color temperature curve, the method comprises the following steps: setting a target color temperature value and a target color coordinate value for a gray scale point on a liquid crystal display, measuring the current color temperature and the current coordinates value of the gray scale point, if any error respectively between the current color temperature value, the current color coordinates value, the together-displayed current lightness and the target color temperature value, the target color coordinates value and the together-displayed target brightness is not less than the minimum error, adjusting the transforming relationship between the voltage and the gray scale of various color light in the gamma comparison table to correct the current color temperature value, if the error between the current color temperature value, the current color coordinates value, the together-displayed current brightness and the target color temperature value, the target coordinates value and the together-displayed target brightness are all smaller than the minimum error, completing the adjustment of the gray scale point.

The invention discloses a driving method of a display panel, a multiplexer, and the display panel. The driving method comprises steps that every N frames of a display image are used to form a driving period, and every two rows of pixel units of every frame of the display image are used to form a sub-driving period. Display colors of a last-charged sub-pixel of a former row of pixel units, the last-charged sub-pixel of the next row of pixel units, the last-charged sub-pixel of the former sub-driving period, and the first-charged sub-pixel of the next sub-driving period are the same. The sub-pixel charging clock signal of the last-charged sub-pixel of the former row of pixel units can last till the completion of the charging of the first-charged sub-pixel of the next row of pixel units, and then high-level low-level switching is carried out. The sub-pixel charging clock signal of the last-charged sub-pixel of the former sub-driving period can last till the completion of the charging of the first-charged sub-pixel of the next sub-driving period, and then the high-level low-level switching is carried out. The power consumption of the display panel is reduced.

The present invention provides a light-emitting diode display, which includes a first substrate, on which a pixel unit is arranged, and the pixel unit includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the green sub-pixel is a green micro-luminescent Diodes, the green micro-LEDs include: an initial green micro-LED; a green color-resist covering layer, the green color-resist covering layer covers the outer surface of the initial green micro-LED, the green color-resist covering layer has at least An opening; and, a first contact electrode disposed on the green color-resist covering layer, and the first contact electrode is electrically connected to the initial green micro-LED from the at least one opening; wherein, the green color-resist covering layer It is used to filter out the light with a wavelength of 600nm to 650nm in the light emitted by the initial green micro light emitting diode; thereby improving the display quality of the display.

The invention discloses an array substrate, an electroluminescence display panel and a display device. With arrangement of an optical regulating structure, interference of light emitted from two adjacent pixel areas can be avoided effectively, a pixel limit structure can be quite thin, and thus area occupation of the pixel limit structure is reduced, while pixel density is increased correspondingly and display resolution ratio is improved. Besides, as the optical regulating structure has reflecting and scattering functions, the brightness of a display can be increased while the light utilization rate is increased, and accordingly image display quality can be improved effectively.

The invention provides a LED backlighting power control method and the LED display thereof and is suitable for the LCD field. The method includes steps as following: the power representative value of the LED power supply can be calculated; the power attenuation coefficient can be calculated according to the power representative value; and the power dissipation of attenuation LED power supply can be controlled according to the power attenuation coefficient. In the embodiment of the invention, the power attenuation coefficient can be identified according to the power representative value of each LED, furthermore, LED power consumption can be controlled according to the data value correlative to attenuation coefficient; thereby avoiding the color error phenomenon caused by display pictures, presenting continuous display pictures with high definition and high contrast degree.

The invention provides an array substrate and a liquid crystal display panel. The array substrate provided by the invention comprises a substrate, a TFT layer, a colored filtering layer and a black shielding layer, wherein at least one of a red color resistance unit, a green color resistance unit and a blue color resistance unit in the colored filtering layer is prepared by fractionated exposure according to different exposure splicing areas, namely exposure by using a direct splicing technology, and the black shielding layer comprises a plurality of vertical black shielding strips correspondingly positioned above a plurality of data lines. According to the array substrate provided by the invention, the vertical black shielding strips are used for replacing DBS ITO COM lines in the prior art, difference between color resistance superposition areas on different exposure splicing areas displayed under transmission light and reflection light and the difference between the color resistance superposition areas and relative positions of the data lines below can be shielded, and thus the large-size liquid crystal display panel is prevented from generating color cast on the different exposure splicing areas of the corresponding colored filtering layer, and generation of splicing mura is avoided.

The embodiment of the invention discloses a photographing control method and device and an intelligent terminal. The photographing control method comprises following steps of obtaining a current environment color temperature value collected by a color temperature sensor in the intelligent terminal; adjusting the color temperature value of the screen according to the current environment color temperature value if the color temperature difference value of the current environment color temperature value and the color temperature value of the screen in the intelligent terminal is more than a set color temperature threshold value; and photographing according to the color temperature adjusting result of the screen. According to the technical scheme provided by the embodiment of the invention, through enabling the color temperature value of the screen to be approximate to the current environment color temperature value, color shift phenomenon of white balance of a camera is avoided, and the experience satisfaction degree of a user is improved.

The invention discloses an LED display screen white balance correction technology and relates to the technical field of LEDs. The LED display screen white balance correction technology is realized in the correction steps that (1) the target red, green, blue and white luminance and the target red, green, blue and white chrominance of a display screen are set; (2) a pixel positioning technology is applied, each LED lamp bead is positioned, the luminance, the chrominance (without chrominance compensation) and other data of each LED lamp bead are collected, the corresponding data are obtained, and nine correction systems of the red, the green and the blue (with compensation) are calculated and obtained; (3) after correction coefficients of all pixels are generated, the correction coefficients are written in a system board of the display screen. The display screen drives an IC in a PWM mode, the nine coefficients are duty ratios, and when the red, the green and the blue of the whole display screen reach the target luminance and the target chrominance, the white formed by the red, the green and the blue in a mixed mode reaches the target luminance and the target chrominance naturally. The LED display screen white balance correction technology enables the luminance of all positions of the LED display screen to be consistent and meanwhile eliminates the color cast phenomenon of the display screen.

The embodiment of the invention discloses an image processing method, a terminal and a computer readable storage medium. The method comprises the steps of: acquiring first image data which is shot byutilizing a camera and comprises a face image; carrying out automatic white balance processing on the first image data to obtain second image data; determining a face region of the second image data,and converting a RGB component of each pixel point of the face region into a YUV component; and for the second image data, according to a preset face region chroma regulation method, carrying out regulation on a chroma component in the YUV component of each pixel point of the face region. Therefore, the corresponding chroma regulation method can be adopted separately for the face region so as to avoid color cast of the face region of the image data.

The invention discloses an optical membrane material, a color film substrate, a manufacturing method of the color film substrate and a display device and belongs to the technical field of liquid crystal display. The color film substrate comprises a substrate, a color resistance layer and a divergence layer. The color resistance layer and the divergence layer are arranged on the substrate, and the color resistance layer and the substrate are located on the same side of the divergence layer. The color resistance layer comprises multiple color resistance blocks arranged in an arrayed mode, the divergence layer comprises multiple divergence structures corresponding to the color resistance blocks one to one, each divergence structure is used for diverging light vertically emitted from the color film substrate, the light transmitting the color resistance blocks is diverged to a larger angle range through the divergence structures, and therefore the visible view angle of a liquid crystal displayer is increased. A backlight module providing parallel light can be adopted in a display panel adopting the color film substrate, and when the parallel light emitted by the backlight module vertically enters the display panel, the phenomenon of color cast can be avoided.

The invention provides a LCD (liquid crystal display) panel and a manufacturing method thereof, relates to the field of manufacturing of liquid crystal displays, and the LCD panel can avoid color cast of a display panel caused by different phase differences formed when visible lights with different wavelengths transmitted by a conventional white backlight pass through a liquid crystal layer. The LCD panel comprises an LED (light-emitting diode) backlight, a color film substrate molded by paired boxes, a TFT (thin film transistor) array substrate, and a liquid crystal layer positioned between the color film substrate and the TFT array substrate, wherein the color film substrate comprises an orientation film, a common electrode layer and a color filter, the LED backlight comprises a plurality of primary LED chips, and phosphor layers in complementary color with the primary LED chips are arranged on the color film substrate and between the orientation film and the color filter. The method provided by the invention is used for manufacturing the LCD panel.

The invention discloses a terminal, a white balance correction control method thereof and a computer readable storage medium, and the method comprises the steps: collecting a first image through a first image collection module in the shooting and using process of the terminal; When it is determined that the first image does not meet the white balance correction condition, a second image is collected through a second image collection module with a larger field angle, and a white balance correction parameter is obtained based on the collected second image; The invention further discloses a terminal and a computer readable storage medium. By implementing the above scheme, The second image acquisition module with a better view field angle is started to acquire image information in a larger view field angle range; therefore, the terminal can obtain more effective gray scale statistical points as much as possible; Therefore, the terminal can calculate more accurate white balance correction parameters, the condition of color cast of a shot image caused by white balance correction parameter calculation failure or error due to insufficient number of effective gray scale statistical points is avoided, and the satisfaction degree of user experience is improved.

The invention discloses a white balance adjustment method and device and terminal equipment. Colours, presented under different light sources, of skin is measured in advance to obtain mapping relation of the colours of the light sources and the colours, presented under the light sources, of the skin, so that the mapping relation of the colour of the light source and the colour, presented under the light source, of the skin is inquired by virtue of a first colour, presented under a target light source, of the skin in a human face region of the frame image when white balance adjustment is carried out on a frame image, so as to obtain a second colour of the target light source corresponding to the first colour, and carrying out the white balance adjustment on the frame image according to the second colour. Skin colour of human face is relatively stable, the colour of the light source can be obtained on the basis, so that the white balance adjustment is carried out on the frame image, colour cast problem under the condition of large-area colour mixing is avoided, and the technical problem that imaging effect is poor in the prior art is solved.