Abstract:
An electroluminescent display and a driving device of the electroluminescent display are disclosed. The electroluminescent display includes first and second active areas divided from a screen, a first timing controller configured to transmit pixel data of the first active area to be displayed on the first active area to a first driving circuit writing pixel data to pixels of the first active area, a second timing controller configured to transmit pixel data of the second active area to be displayed on the second active area to a second driving circuit writing pixel data to pixels of the second active area, and a bridge circuit configured to distribute an input image to the first and second timing controllers and synchronize the first and second timing controllers when receiving a synchronization request signal from the first and second timing controllers.
Abstract:
Embodiments of the invention provide a circuit for peaking video signals to be provided to a dynamic range limiter for displaying images on a display device. The circuit comprises a peaking filter including a filter input configured to receive a video signal. A first filter output provides a peaking signal for the video signal. A second filter output provides a peaked video signal based upon the peaking signal. The circuit further comprises a throttle circuit including a throttle input coupled to the second filter output. A throttle output provides a throttle signal based upon the peaked video signal. A scaler is coupled between the first filter output and the dynamic range limiter. The scaler is further coupled to the throttle output. The scaler adjusts the peaking signal based upon the throttle signal. Accordingly, peaking is adaptively applied to the video signal based upon the dynamic range limits of the dynamic range limiter, as well as variations in brightness of the input signal over portions of the displayed image.
Abstract:
A display panel optical compensating apparatus, a display panel and a display panel optical compensating method are provided. The display panel optical compensating apparatus comprises a storage unit (1), a data unit (2), a timing control unit (3) and a switch (4). When the switch (4) is in a first position, the timing control unit (3) has no data exchange with the storage unit (1), and the data unit (2) receives compensated data and bums the compensated data into the storage unit (1). When the switch (4) is in a second position, the timing control unit (3) reads the compensated data in the storage unit (1), performs a compensating operation on display data, and outputs compensated display data. The display panel optical compensating apparatus, the display panel and the display panel optical compensating method realize simple structure, flexible operation, high stability, and fast tempo, and are suitable for mass production.
Abstract:
A multiscreen display is formed in which changes in luminance between an image overlap area and areas outside the image overlap area are less visible across a range of low to high gradations. An offset correction value Doffset that is linearly decreased at the lowest gradation of the input image signal so that the offset correction value becomes 0 at gradations higher than the predetermined gradation Lset, is added to an input image signal.
Abstract:
A method of driving a display panel includes determining a present polarity of a pixel data signal of a present frame, generating a first compensated grayscale of the pixel data signal of the present frame using a pixel data signal of a previous frame, the pixel data signal of the present frame, and the present polarity, and displaying an image using the first compensated grayscale. The first compensated grayscale varies according to the present polarity.
Abstract:
The purpose of the present invention is to provide an image processing device capable of carrying out uniformity correction to make the luminance on the entire screen substantially uniform and capable of reducing luminance unevenness in a prescribed shape. A uniformity correction data generation unit (uniformity correction data storage unit 11 and uniformity correction data interpolator 12) generates uniformity correction data for an R signal, a G signal, and a B signal. A multiplier (19) multiplies pixel signals of the R signal, the G signal, and the B signal by the uniformity correction data for the R signal, the G signal, and the B signal. The multiplier (19) shifts, from one another, positions of pixels at a time of multiplying the pixel signals of the R signal, the G signal, and the B signal by the uniformity correction data for the R signal, the G signal, and the B signal.
Abstract:
The purpose of the present invention is to provide an image processing device capable of carrying out uniformity correction to make the luminance on the entire screen substantially uniform and capable of reducing luminance unevenness in a prescribed shape. A uniformity correction data generation unit (uniformity correction data storage unit 11 and uniformity correction data interpolator 12) generates uniformity correction data for an R signal, a G signal, and a B signal. A multiplier (19) multiplies pixel signals of the R signal, the G signal, and the B signal by the uniformity correction data for the R signal, the G signal, and the B signal. The multiplier (19) shifts, from one another, positions of pixels at a time of multiplying the pixel signals of the R signal, the G signal, and the B signal by the uniformity correction data for the R signal, the G signal, and the B signal.
Abstract:
A display apparatus includes a display panel displaying a normal image in a normal mode and displays a static image in a PSR (Panel Self Refresh) mode, a memory storing refresh image data corresponding to the static image, a comparator comparing image data of an N-th frame received from a graphics processor and refresh image data readout from the memory, a compensator generating a compensation value based on a comparison result and adding the compensation value to the refresh image data, and a data driver generating a data voltage using the refresh image data compensated by the comparator and outputting the data voltage to the display panel.