85results about How to "Maintain display quality" patented technology

Each embodiment relates to an image display device which comprises an image display panel, in which two or more groups of particles having different colors and different charge characteristics are sealed between two substrates, at least one of two substrates being transparent, and, in which the particles, to which an electrostatic field produced by a pair of electrodes provided on one or both substrates is applied, are made to fly and move so as to display an image. Among them, in the first aspect of the invention, an image forming process for forming the image by applying an electric field pattern between the electrodes, the electric field pattern serving to fly particles A to the substrate at an image display side; and an image forming process for forming the image by applying an inversion (negative) electric field pattern with respect to the electric field pattern, the inversion electric field pattern serving to fly particles B having different colors and different charge characteristics with respect to those of the particles A to the substrate at an image display side; so that an image deleting process prior to forming the image to be displayed is eliminated.

A display device that suppresses electric power consumption and displays an image with excellent quality is to be realized. A host control section (30) in accordance with an aspect of the present invention is a control device for a display device (1), said control device includes: an image determining section (35) for determining whether or not grayscale levels of a plurality of pixels in an image fall within a first range which consists of intermediate grayscale levels; and a driving changing section (36) for changing, according to a result of the determining carried out by the image determining section (35), a refresh rate of the display device (1).

Each embodiment relates to an image display device which comprises an image display panel, in which two or more groups of particles having different colors and different charge characteristics are sealed between two substrates, at least one of two substrates being transparent, and, in which the particles, to which an electrostatic field produced by a pair of electrodes provided on one or both substrates is applied, are made to fly and move so as to display an image. Among them, in the first aspect of the invention, an image forming process for forming the image by applying an electric field pattern between the electrodes, the electric field pattern serving to fly particles A to the substrate at an image display side; and an image forming process for forming the image by applying an inversion (negative) electric field pattern with respect to the electric field pattern, the inversion electric field pattern serving to fly particles B having different colors and different charge characteristics with respect to those of the particles A to the substrate at an image display side; so that an image deleting process prior to forming the image to be displayed is eliminated.

An object of the invention to provide a method for maintaining display quality as much as possible and reducing a crosstalk amount. A method for correcting stereoscopic images according to the present invention has (a) at least one of a step of detecting a range of crosstalk and a crosstalk amount occurring on a left image or a right image as black-side correction data, and a step of detecting the range of crosstalk and the crosstalk amount as white-side correction data, based on crosstalk characteristic data, (b) at least one of a step of making the black-side correction data into lower-limit data, and a step of making the white-side correction data into upper-limit data; and (c) a step of gamma-converting the left image or the right image based on at least one of the lower-limit data and the upper-limit data.

An emissive type display device includes: a pixel array section having pixels ready for an active matrix driving system; a circuit for setting a peak luminance level of each display frame; and a driving circuit for variably controlling a total application period length of a driving voltage applied to a power supply line connected to each pixel and amplitude of the driving voltage so as to obtain a set peak luminance level, when the set peak luminance level is lower than a set value, the driving circuit dividing the driving voltage into a plurality of times of pulse waveform, and variably controlling the amplitude of the driving voltage at each output time according to the peak luminance level such that the amplitude of the driving voltage at least one output time is lower than a maximum driving voltage in a non-emission period.

This invention provides an image display system that includes an image display device having an overdrive processing circuit and allows reduction in memory cost as a whole. The image display system according to this invention includes an image generation device that generates image data, and an image display device that receives the image data from the image generation device, performs overdrive processing based on the received image data, and displays an image. The image generation device includes a rendering circuit that generates image data to be outputted to the image display device for every frame, a memory unit that holds the plural pieces of image data corresponding to at least two frames among the plural pieces of image data generated by the rendering circuit, and a transfer circuit that transfers the plural pieces of image data corresponding to two frames among the plural pieces of image data held by the memory unit to the image display device within one frame period. The image display device receives the plural pieces of image data corresponding to the two frames from the transfer circuit and performs the overdrive processing based on the received image data.

An imaging apparatus includes an imaging unit operable to output an image signal of a subject, an amplifier unit operable to amplify the image signal output by the imaging unit, a gain adjusting unit operable to adjust a gain of the amplifier unit, and a frame rate adjusting unit operable to set a read frame rate of the imaging unit for a normal operation period to a first frame rate, and set the read frame rate for a focus operation period to a second frame rate which is larger than the first frame rate. When the frame rate adjusting unit changes the read frame rate of the imaging unit from the first frame rate to the second frame rate, the gain adjusting unit adjusts the gain of the amplifier unit so that a substantially equivalent exposure amount is maintained before and after the change in the read frame rate.

A light source for a display device, includes: a first LED chip emitting a first light having a peak located within the range of wavelengths 380 nm to 500 nm, and a second LED chip emitting a second light having a peak located within the range of wavelengths 380 nm to 500 nm, wherein the peak wavelength of the second light is longer than the peak wavelength of the first light, and the difference between the peak wavelength of the second light and the peak wavelength of the first light is less than 40 nm and greater than or equal to 10 nm.

A backlight assembly includes a receiving container, a light guide plate, a light source unit, an optical member and a panel-guiding member. The receiving container includes a bottom plate and a sidewall extended from an edge portion of the bottom plate. The light source unit includes a light source generating light and disposed at side face of the light guide plate, and a light reflecting cover that covers the light source to reflect the light generated from the light source toward the side face. The optical member is disposed over the light guide plate. The panel-guiding member has a first plate combined with the sidewall of the receiving container, and a second plate extended from the first plate such that the second plate covers a portion of the optical member and is spaced apart from an upper face of the optical member. Therefore, warpage and cleavage of the optical member are prevented.

A light source for a display device, includes: a first LED chip emitting a first light having a peak located within the range of wavelengths 380 nm to 500 nm, and a second LED chip emitting a second light having a peak located within the range of wavelengths 380 nm to 500 nm, wherein the peak wavelength of the second light is longer than the peak wavelength of the first light, and the difference between the peak wavelength of the second light and the peak wavelength of the first light is less than 40 nm and greater than or equal to 10 nm.

An electrophoretic display device includes a common electrode and a plurality of pixel electrodes, and a disperse system containing electrophoretic particles, that is held between the common electrode and the plurality of pixel electrodes,. The electrophoretic display device includes a switching transistor and a control portion. The switching transistor supplies a corresponding one of the pixel electrodes with a low electric potential signal or a high electric potential signal supplied from a signal line. The control portion controls electric potential signals supplied to the pixel electrode and the common electrode to cause the electrophoretic particles to move. The switching transistor enters an on state when a gate electrode of the switching transistor is supplied with a first electric potential, and enters an off state when the gate electrode is supplied with a second electric potential. The control portion is provided with a first period during which control for causing the electrophoretic particles to move is performed and a second period during which, after the first period, the switching transistor is made to enter an off state. During the second period, when the first electric potential is smaller than the second electric potential, the control portion supplies a low electric potential signal from the signal line to the switching transistor and supplies a low electric potential signal to the common electrode, and when the first electric potential is larger than the second electric potential, the control portion supplies a high electric potential signal from the signal line to the switching transistor and supplies a high electric potential signal to the common electrode.

Provided is a display device, including a substrate including pixel areas which are disposed in a matrix form including pixel rows and pixel columns, a thin film transistor formed on the substrate, a pixel electrode connected to the thin film transistor, a common electrode formed on the pixel electrode to be spaced apart from the pixel electrode with a microcavity therebetween, a liquid crystal layer filling the microcavity between the pixel electrode and the common electrode, a roof layer formed on the common electrode, a liquid crystal injection hole formed in the common electrode and the roof layer to expose a part of the microcavity, and an overcoat formed on the roof layer so as to cover the liquid crystal injection hole to seal the microcavity. A cross section of the microcavity has a reverse-tapered trapezoidal shape in which an upper width is larger than a lower width.

The provided bottom-lighting module comprises a bezel, a protrusion and at least one lamp. The bezel has at least one aperture with a first circumference and a second circumference. The bezel comprises a main body and at least one inclined wall extending upward from an edge of the main body. The protrusion is formed on the outer side of the bezel corresponding to the at least one aperture. Part of the circumference of the protrusion corresponds to the first circumference of the at least one aperture. At least one lamp is disposed on the main body of the bezel.

A liquid crystal display panel includes a TFT substrate, a color filter (CF) substrate opposed to the TFT substrate, a sealant disposed between the TFT substrate and the CF substrate and disposed between portions of both the substrates located immediately outside display regions thereof, and a liquid crystal layer disposed between the TFT substrate and the CF substrate. The CF substrate is provided with a light-shielding layer at a portion located immediately outside its display region. The light-shielding layer is provided with a slit at a region that coincides with a line on the TFT substrate.

An electrophoretic display device includes a common electrode and a plurality of pixel electrodes, a disperse system containing electrophoretic particles, the disperse system being held between the common electrode and the plurality of pixel electrodes. The electrophoretic display device includes a switching transistor and a control portion. the switching transistor supplies a corresponding one of the pixel electrodes with a low electric potential signal or a high electric potential signal supplied from a signal line. The control portion controls an electric potential applied between each of the pixel electrodes and the common electrode to cause the electrophoretic particles to move. The control portion provides, in a period during which control for causing the electrophoretic particles to move is performed, a first period during which the switching transistor is held in an on state and a second period during which the switching transistor is held in an off state. The first period continues until charging of the pixel electrode is complete. The second period continues from an end of the first period until movement of the electrophoretic particles is complete.

An electrophoretic display device includes a common electrode, pixel electrodes, and a disperse system of electrophoretic particles. A transistor supplies one of the pixel electrodes with a first potential or a second potential higher than the first potential. During a first period, a control portion supplies a third potential to the gate electrode to turn on the transistor, supplies the first potential to a signal line or the common electrode, and supplies the second potential to the other line. During a second period, the control portion supplies a fourth potential higher than the third potential to the gate electrode to turn off the transistor, and supplies the first potential to both the signal line and the common electrode so that the pixel electrode potential substantially reaches the common electrode potential. The third potential is lower than the second potential and the fourth potential is higher than the first potential.

A backlight assembly includes a receiving container, a light guide plate, a light source unit, an optical member and a panel-guiding member. The receiving container includes a bottom plate and a sidewall extended from an edge portion of the bottom plate. The light source unit includes a light source generating light and disposed at side face of the light guide plate, and a light reflecting cover that covers the light source to reflect the light generated from the light source toward the side face. The optical member is disposed over the light guide plate. The panel-guiding member has a first plate combined with the sidewall of the receiving container, and a second plate extended from the first plate such that the second plate covers a portion of the optical member and is spaced apart from an upper face of the optical member. Therefore, warpage and cleavage of the optical member are prevented.