Display driving apparatus
AssigneeSilicon Works Co., Ltd.
InventorsYong Min Kim, Ju Ho Lee, Da Sol Won, Se Hyuk An
Life of this patent
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Abstract
A display driving apparatus includes an output control circuit configured to, with one frame being divided into a plurality of blank periods by touch driving, output source signals corresponding to display data during the plurality of blank periods; and a polarity control circuit configured to receive pre-polarity control information for polarity inversion, and control polarities of the source signals outputted from the output control circuit, for polarity inversion by the unit of vertical 2 dots for one frame, wherein polarities for pre dummy lines and active data lines of odd-numbered and even-numbered blank periods are controlled by the pre-polarity control information.
Claims16
A display driving apparatus comprising:
- an output control circuit configured to, with one frame being divided into a plurality of blank periods by touch driving, output source signals corresponding to display data during the plurality of blank periods;
- and
- a polarity control circuit configured to receive pre-polarity control information for polarity inversion, and control polarities of the source signals outputted from the output control circuit, for polarity inversion by the unit of vertical 2 dots for one frame,
- wherein each blank period includes a first pre dummy line, a second pre dummy line and a plurality of active data lines which are successive,
- wherein the output control circuit maintains the display data latched during a previous blank period in the first pre dummy line and the second pre dummy line, and
- wherein the polarity control circuit inverts, by the pre-polarity control information, polarities designated for polarity inversion, by the unit of vertical 2 dots, of the source signals for the first pre dummy line and the second pre dummy line of an odd-numbered blank period and the plurality of active data lines of an even-numbered blank period.
A display driving apparatus comprising:
- an output control circuit configured to, with one frame being divided into a plurality of blank periods by touch driving, output source signals corresponding to display data during the plurality of blank periods;
- and
- a polarity control circuit configured to receive pre-polarity control information for polarity inversion, and control polarities of the source signals outputted from the output control circuit, for polarity inversion by the unit of vertical 2 dots for one frame,
- wherein each blank period includes a first pre dummy line, a second pre dummy line and a plurality of active data lines which are successive,
- wherein the output control circuit maintains display data latched during a previous blank period in the first pre dummy line and the second pre dummy line, and
- wherein the polarity control circuit inverts, by the pre-polarity control information, polarities designated for polarity inversion, by the unit of vertical 2 dots, of the source signals for the first pre dummy line of an odd-numbered blank period and the second pre dummy line and the plurality of active data lines of an even-numbered blank period.
A display driving apparatus comprising:
- a timing controller configured to provide a data packet including control data including polarity information and display data;
- and
- a driving circuit configured to restore the display data and the polarity information from the data packet, and output source signals which correspond to the display data and whose polarities are controlled by the polarity information,
- wherein the polarity information includes normal polarity control information for polarity inversion by the unit of vertical 2 dots for one frame and pre-polarity control information for inverting polarities designated by the normal polarity control information,
- wherein one frame is divided into a plurality of blank periods by touch driving,
- wherein each blank period sequentially includes at least one pre dummy line and a plurality of active data lines, and
- wherein the driving circuit inverts, by the pre-polarity control information, polarities, designated by the normal polarity control information, of the source signals for the at least one pre dummy line of an odd-numbered blank period and the plurality of active data lines of an even-numbered blank period.
Dependencies are inferred from the claim text.