Abstract: A data processing apparatus has a first processing unit for processing an input data, a second processing unit responsive to the data processed by the first processing unit for executing a processing dependent on the data and producing a display data, and a display unit having a display drive unit and a display device for displaying the display data. The second processing unit is selectively inactivated and activated under control of the first processing unit to reduce power consumption in the second processing unit. The display drive unit is also selectively inactivated and activated under control of the first processing unit to reduce power consumption in the display unit.
April 30, 2003
Date of Patent:
July 18, 2006
Matsushita Electric Industrial Co., Ltd.
Abstract: A method of driving a display device assumes a specific pixel on a retina that is formed on the retina based on an input image, and controls light emission of each subframe such that luminance of a specific pixel on the retina becomes substantially equal to luminance of a pixel corresponding to the input image. The display device is driven by constructing one frame with a plurality of subframes, for displaying the input image that moves on a display panel.
Abstract: Timing information may be embedded along with other display control information in a signal using a pulse width modulation (PWM) mechanism to controllably drive a display (e.g., a plurality of display elements forming an array of display elements). In one embodiment, a non-uniform pulse interval clock may be generated from a uniform pulse interval clock in response to the timing information having pulse interval values. Using the non-uniform pulse interval clock, the width, and optionally the amplitude, of a drive signal may be modulated in order to controllably drive one or more display elements of an array of display elements. For example, while using video data with the non-uniform pulse interval clock to adjust the duration of the drive signal directed to each display element of the array of display elements, calibration data may be simultaneously used to adjust the magnitude of the drive signal.