381 results about "Display contrast" patented technology

An assortment of color elements is grouped within a plurality of color families which are organized in accordance with a circular color chart (FIG. 10-A) and a columnar chart (FIG. 11-A). Except for the neutral-gray color family, a pair of boundary-hues respectively defines the extent of acceptable hue variation within each group, resulting in an included range of hue within each color family, and an excluded range of hue in between neighboring color families. Variant-hue charts enhance color comparison and selection within each main color family by displaying contrasting variations of all three color attributes, that is, value, saturation, and hue, within a single chart. Variant-hue charts also consolidate color elements into a compact format, and provide a graphical user interface for computer color selection.

This invention discloses one touch control plane display device, which connect display screen electrode and touch control signal circuit through analogue switch, wherein, the analogue switch set makes the display screen electrode and display drive circuit switching between display drive circuit and touch control signal circuit to connect them to multiplex display screen electrode by time division method and to integrate touch control screen and display screen from time dimension with touch control function.

A method and apparatus improves the visibility of information displayed on a portable electronic device display in various ambient lighting conditions. The portable electronic device measures the ambient light associated with the display and adjusts the display based on the measured ambient light to improve the visibility of the displayed information. In an exemplary embodiment, light detection electronics detect the ambient light associated with the display. A light processor processes the raw data to determine the measured ambient light based on the detected ambient light. A display controller of the portable electronic device adjusts the display based on the measured ambient light. An exemplary display controller may adjust the size of the displayed information, a backlight intensity of the display, or a display contrast based on the measured ambient light.

Apparatuses and methods to operate a display device of an electronic device. In some embodiments, a method includes receiving a user setting of a display control parameter, and altering, based on the user setting, an effect of an ambient light sensor value (ALS) on control of the display control parameter. Also, according to embodiments of the inventions, a method of operating a display of an electronic device includes receiving a change to one of a display brightness output level and an ambient light sensor output level, and altering, according to the change, a display contrast output level. In some embodiments, a method of operating a proximity sensor of an electronic device includes receiving a light sensor output, and altering, according to the output, an on / off setting of a proximity sensor. Other apparatuses and methods and data processing systems and machine readable media are also described.

An assortment of color elements is grouped within a plurality of color families which are organized in accordance with a circular color chart (FIG. 10A) and a columnar chart (FIG. 11-A). Except for the neutral-gray color family, a pair of boundary-hues respectively defines the extent of acceptable hue variation within each group, resulting in an included range of hue within each color family, and an excluded range of hue in between neighboring color families. Variant-hue charts enhance color comparison and selection within each main color family by displaying contrasting variations of all three color attributes, that is, value, saturation, and hue, within a single chart. Variant-hue charts also consolidate color elements into a compact format, and provide a graphical user interface for computer color selection.

The invention relates to a liquid crystal mixture for a display, which comprises the following compounds in percentage by weight: 70 to 90 percent of compound in a general formula I, 0 to 20 percent of compound in a general formula II, 5 to 25 percent of compound in a general formula III, 0 to 10 percent of compound in a general formula IV and 1 to 15 percent of compound in a formula V. Through optimal combination and optical proportioning, the anisotropyenergy of the negative dielectric of the liquid crystal mixture reaches -9.5, a clearing point is between 95 and 110DEG C, the driving voltage is very low, the energy consumption can be effectively reduced, and a liquid crystal display (hereinafter referred to as LCD) powered by a battery is powered more durably. The mixture has good intersolubility between monomers, and the solubility of the mixture for dichroic dyes is good; and various single dichroic dyes with different colors can be added to the liquid crystal mixture, so the liquid crystal mixture has good absorbance and dichroic ratio to well realize darker dark state and greatly improve display contrast in the displaying process.

The invention relates to a method and a device for displaying image by reducing power consumption. On the basis of little appearance opportunity of a large high-brightness pure white area in an image, an image analyzer is additionally provided on the basis of the prior projection display system, image data is analyzed by using a frame as a unit so as to ensure a multiplication number of various kinds of fundamental color data, control signals which are relative to the image data and the multiplication number are output to a light source so as to reduce and regulate the output power of fundamental color light beams, the fundamental color data of the image data can be correspondingly controlled, magnified and regulated, and thereby under the premise that the display image is not affected inthe brightness and the contrast ratio, the power consumption of the projection display system is greatly reduced. The display contrast ratio of the system can be improved by adopting the method and the device for displaying image and an LED light source.

The invention discloses an integrated dimming method for a liquid crystal display backlight source, and the integrated dimming method comprises the following steps: carrying out the statistics analysis on input images, thus obtaining a backlight dimming factor k (0<=k<=1); integrally changing the backlight brightness according to the k and simultaneously generating an S curve according to the characteristic values of the images; and independently compensating each liquid crystal pixel according to the S curve, wherein the pixel compensation factor with the brightness larger than the inflection point of the S curve is larger than 1 and the pixel compensation factor with the brightness less than the inflection point of the S curve is less than 1, thereby effectively enhancing the display contrast ratio and simultaneously reducing the energy consumption. The invention also discloses a backlight device with a global dimming function, and the backlight device comprises an LED (Light Emitting Diode) light source plate, a video signal interface plate, an LED driving plate, an FPGA (Field Programmable Gate Array) control plate and the like. The dimming algorithm disclosed by the inventioncan be used for enhancing the dynamic contrast ratio and also effectively enhancing the static contrast ratio and can be used for direct descending type backlight and side emitting type backlight.

There is provided an antiglare hard-coated film that can maintain antiglare properties and suppress a reduction in the display contrast of a display, when composed of a transparent plastic film substrate and an antiglare hard coat layer formed thereon. The antiglare hard-coated film 4 includes a transparent film substrate 1 and a hard coat layer 2 that is provided on at least one side of the transparent film substrate 1, contains fine particles 2b, and has an irregular surface, wherein the fine particles 2b have an average particle size of 6 μm to 15 μm and form irregularities with an average slope angle θa of 0.4° to 1.5°, and the antiglare hard-coated film satisfies the relation: {(the contrast ratio) / (the contrast ratio of a hard-coated film without the fine particles)}×100≧60%

The invention discloses a color film substrate and manufacturing method thereof, and an OLED display panel and a display apparatus. The color film substrate comprises a substrate, and a black matrix layer and a blocking mat layer sequentially arranged on the substrate in a stacked way. The blocking mat layer comprises a plurality of blocking mats arranged in the same layer. The orthographic projection of the graph of each blocking mat on the substrate is located inside the area where the graph of the black matrix layer is located. In this way, the aperture ratio of the color film substrate will not be occupied. The surface of each blocking mat is provided with an auxiliary function layer which is used for absorbing or reflecting light irradiated to surfaces of the blocking mats. Optical crosstalk among adjacent sub-pixel units on the color film substrate can be prevented. Color mixing is further prevented. The light extraction efficiency and the display contrast can be further enhanced. The display effects are also improved.

A hard-coated antiglare film that has excellent antiglare properties, prevents a glare phenomenon from occurring, and prevents white blur from occurring to have excellent display contrast in bright light. The hard-coated antiglare film includes a transparent plastic film substrate and a hard-coating antiglare layer containing fine particles. The hard-coating antiglare layer is formed on at least one surface of the transparent plastic film substrate. The hard-coating antiglare layer has a surface with an uneven structure. The hard-coated antiglare film has a total haze value ht in the range of 40 to 70%. The relationship between the total haze value ht and an inner haze value hi obtained due to scattering inside the hard-coating antiglare layer is a relationship of the total haze value ht≦the inner haze value hi.

A content manager feature includes global controls, e.g., volume and display contrast across the entire floor. The program shows prompts including configuring graphical screens with a system variable laid over the display such as player-preferred name. The content manager, the calendar, and anything else appearing on the touch screen are displayed with key pad, touch screen, or on the game screen with or without touch controls.

A mixed color controlling method for backlight module and display device using the same, in the method, a mixed color sequential (MCS) algorithm with high contrast enhancement technique is provided in RGB LED backlight display. Owing to synchronous control of LCD panel and LED backlight module, high quality image with suppressed color breakup and motion blur effects is achieved, and display contrast is improved by our novel color sequential technique. In addition, MCS algorithm is useful for color filter-less optical compensated bend (OCB) panel display for alleviating color breakup and motion blur effects.

This invention is an electricity generating organic light-emitting display device (OLED) consisting of vertically stacked layers including an organic light emitting device (OLED), an insulation layer, a solar cell and thin film transistors. The device can reduce the reflection of ambient light, improve the contrast of the signal, and enhance sun-light readability by allowing the ambient light to be absorbed by the solar cells. Furthermore, additional power will be generated by the solar cell through absorption of ambient light and backward emission of OLEDs. The device, without using the polarizer, can exhibit low reflectance characteristics over the visible region and high display contrast.

An electrophoretic display device is configured to move charged particles between a display electrode surface and a cell wall surface and provides a solution to a problem that many charged particles are collected at the edge of the display electrode to degrade display contrast. The electrophoretic display device is arranged to move the charged particles between the display electrode surface and the side face of the cell wall and the vicinity thereof to implement display, and the second electrode is disposed on a lower face of the cell wall or in the vicinity of the lower face, thereby allowing the particles to be located on the surface of the cell wall. Another electrophoretic display device is provided which has a structure wherein all or part of the display electrode has a protruding shape.

The invention provides a manufacturing method of a display substrate, the display substrate and a display device. The method comprises the step of forming a black matrix; when forming the black matrix, a metal graph for manufacturing the black matrix is formed, wherein the metal graph is prepared from metalloid or metalloid alloy; the metal graph is treated through an alkaline solution so as to form the black matrix with rough surface. According to the method, the metal black matrix with the rough surface can be formed, so that the reflecting rate of a metal material can be reduced; in addition, the reflecting rate of the display panel to the outside light can be reduced; the display contrast ratio is increased, and the image quality is improved.

The embodiment of the invention provides a color film substrate and a manufacturing method thereof and a display panel, which relate to the field of displaying, and can be used for increasing the contrast of a display and further improving the displaying quality of the display. The color film substrate comprises a first transparent electrode layer, a black matrix pattern, uniformly-arranged display units and a second transparent electrode layer, wherein the first transparent electrode layer is positioned on a substrate; the black matrix pattern is positioned on the first transparent electrode layer; the uniformly-arranged display units are formed in a pixel region formed by encircling the black matrix pattern; the second transparent electrode layer covers the display unit and the black matrix pattern; and each display unit comprises a plurality of patterns for displaying sub-pixel material layers of images, and a pattern of an electrochromic display device (ECD) sub-pixel material layer for controlling display contrast. The color film substrate is applied to manufacturing of display panels.

Embodiments of the invention provide an array substrate, an OLED display panel and a display device, which relate to the technical field of display. The problem of display contrast decline in the prior art can be improved. The array substrate comprises a luminous area and a non-luminous area. The luminous area comprises an anode, an organic light emitting layer and a cathode which are arranged on a substrate baseboard. The non-luminous area comprises a metal structure which is arranged on the substrate baseboard. The array substrate further comprises a first light absorption layer arranged in the non-luminous area and used to absorb light transmitted from the organic light emitting layer to the non-luminous area. The cathode is pervious to light, and the anode is pervious to light or not pervious to light. The array substrate is used in OLED display devices.

Provided is a liquid crystal display device of a TN type which is improved on a display contrast, gray scale characteristics and viewing angle characteristics of a display color. A liquid crystal cell of a TN type for drive is sandwiched by a pair of upper and lower polarizing plates and at least one compensating film which has an extinction axis angle of 5 to 90 degrees as an absolute value and an optical rotating angle of 0.5 to 10 degrees as an absolute value, wherein signs of the extinction axis angle and the optical rotating angle are contrary to each other, is inserted between the liquid crystal cell and the upper polarizing plate, or between the liquid crystal cell and the lower polarizing plate, or at least two compensating films are respectively inserted between the liquid crystal cell and the upper polarizing plate, and between the liquid crystal cell and the lower polarizing plate, wherein a quasi fast axis vector of a compensating film and an easy axis vector of an electrode substrate nearer the compensating film of the liquid crystal cell satisfy an angular relation therebetween in the range of -30 to +30 degrees or +150 to +210 degrees.

The invention discloses polymer and liquid crystal composition and liquid crystal handwriting display device using the same. The polymer and liquid crystal composition comprises a polymer and a liquid crystal which are mutually soluble, wherein the polymer comprises 30-70 parts of an oligomer monomer, 0.5-3 parts of a photoinitiator, 30-70 parts of an oligomer, 0.1-1 part of an adhesion promoter and 5-50 parts of a diluent. The invention further discloses a preparation method of the liquid crystal handwriting display device. The liquid crystal handwriting display device adopting the polymer and the bi-stable cholesteric liquid crystal has high display contrast, low driving voltage and sensitivity in handwriting, furthermore, electricity is not consumed in a handwriting displaying process and is only consumed at a refresh moment, handwriting refresh can be performed for millions of times, and the handwriting display device is environment-friendly.

The invention is suitable for the technical field of displayers, and provides an electric wetting displayer and a drive method of the electric wetting displayer. The electric wetting displayer comprises a first electrode, a second electrode, an insulation layer, a pixel wall, first fluid, second fluid and a voltage exerting unit which exerts a first voltage between the first electrode and the second electrode within a first preset time period; after the first preset time period, the voltage exerting unit exerts a dynamic voltage with incremental voltage values between the first electrode and the second electrode within a second preset time period, and the voltage value of the dynamic voltage is increased into a second voltage value after the second preset time period. According to the electric wetting displayer and the drive method of the electric wetting displayer, the electric wetting device is driven by the voltage gradually increasing, so that the visual area of each pixel grid is increased, and therefore the display contrast ratio of whole pixels is increased.

An elliptically polarizing plate, comprising a polarizer, a first optical anisotropic layer having positive refractive index anisotropy and an optical axis of the anisotropy that is tilted, and a second optical anisotropic layer having negative refractive index anisotropy and an optical axis that is tilted, have accurate retardation compensation of a liquid crystal cell, and the liquid crystal display maintains a display contrast having a sufficient visibility when the viewing angle is changed and which does not generate colorization.

The invention provides a display panel which comprises a first liquid crystal panel and a second liquid crystal panel. The first liquid crystal panel and the second liquid crystal panel have VA display modes, the first liquid crystal panel and the second liquid crystal panel are arranged oppositely, and the first liquid crystal panel is arranged on the second liquid crystal panel. The invention further provides a display device provided with the display panel. The display contrast ratio of the display panel formed by stacking the two liquid crystal panels is remarkably increased, and leaked light of the display panel is greatly lowered.