Data driver, electro-optic device, electronic instrument and driving method

Abstract

The present invention provides a data driver, an optoelectronic device, an electronic device, and a driving method capable of driving optoelectronic devices with two or more different picture sizes without causing deterioration of image quality, wherein the data driver (30) is used to drive the optoelectronic devices according to (i+j ) (i, j are natural numbers) bits of display data to drive each data line of a plurality of data lines of the optoelectronic device, including: a memory (200) that holds the j-bit data in the display data of each point as pre-holding data ; and a driving part (210) for driving the data lines according to the display data. The driving part (210) drives the data lines according to the display data of (i+j) bits, which are provided to the data driver (30) by the input data of each point i-bit and from the memory ( 200) is generated from the hold data read out.

Description

technical field [0001] The invention relates to a data driver, an optoelectronic device, an electronic device and a driving method. Background technique [0002] For the purpose of reducing power consumption, optoelectronic devices typified by liquid crystal display panels are often used in the display units of portable electronic devices such as mobile phones. Further reduction in power consumption can be achieved by incorporating a memory in a driver for driving the optoelectronic device, wherein the memory stores display data corresponding to a display image. On the other hand, since the built-in memory increases the chip size of the driver, the manufacturing cost increases. Therefore, by incorporating a minimum-capacity memory corresponding to the screen size of the optoelectronic device in the driver, it is possible to minimize the increase in manufacturing cost while achieving low power consumption. [0003] In addition, the capacity of the memory built in the driver...

AI Technical Summary

Problems solved by technology

[0008] However, because in prior art drivers, the picture size of the photoelectric device corresponds to the capacity of the built-in memory of the driver on a 1-to-1 basis, so one driver cannot drive photoelectric devices with more than two (more than or equal to two) different picture sizes. device

Furthermore, even if the capacity of the memory is suppressed by color reduction processing as described above, and the memory holds display data of a larger screen size, the degradation of image quality cannot be suppressed.

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