Display driving circuit and display device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsUnki PARK, Minsik KIM, Hyeonsu PARK, Hyunwook LIM, Woohyuk JANG
Life of this patent
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Abstract
A display driving circuit for driving a display panel includes a control logic that adjusts brightness of a first partial area by adjusting pixel data values included in partial image data to be displayed on the first partial area of the display panel based on received brightness control information, and a data driver that generates image signals by digital-analog conversion of pixel data values provided from the control logic, the data driver providing the image signals to the display panel.
Claims20
A display driving circuit for driving a display panel, the display driving circuit comprising:
- a control logic that adjusts brightness of light emitted by pixel circuits in a first partial area of the display panel by adjusting pixel data values included in partial image data to be displayed in the first partial area of the display panel based on received brightness control information;
- and
- a data driver that generates image signals by digital-analog conversion of pixel data values provided from the control logic, the data driver providing the image signals to pixel circuits of the display panel, wherein:
- the control logic determines a scaling value for adjusting the pixel data values by determining a reference scaling value based on the brightness control information and adjusting the reference scaling value based on a loading effect in accordance with the position of the first partial area on the display panel.
A display driving circuit for driving a display panel, the display driving circuit comprising:
- a control logic that adjusts brightness of light emitted by pixel circuits in a first partial area of the display panel by adjusting pixel data values included in partial image data to be displayed in the first partial area of the display panel based on received brightness control information;
- and
- a data driver that generates image signals by digital-analog conversion of pixel data values provided from the control logic, the data driver providing the image signals to pixel circuits of the display panel, wherein:
- the brightness control information includes sensing data from an external sensor, and
- the control logic adjusts the pixel data values so that brightness of the first partial area is reduced when the sensing data has a value less than or equal to a reference value.
A display device, comprising:
- a display panel including a first partial area;
- and
- a display driving circuit that adjusts brightness of light emitted by pixel circuits in the first partial area of the display panel by adjusting pixel data values included in partial image data to be displayed in the first partial area based on brightness control information, and controls brightness of the first partial area by displaying the adjusted partial image data, wherein:
- the display driving circuit detects scales pixel data values included in the partial image data based on a scaling value to adjust the pixel data values, and
- the scaling value is determined based on the brightness control information and a loading effect in accordance with the position of the first partial area on the display panel.
Dependencies are inferred from the claim text.