Display device
AssigneeLG Display Co., Ltd.
InventorsMoonsoo Chung, Joohee LEE
Life of this patent
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Abstract
The display device according to the present disclosure may comprise a display panel equipped with a plurality of pixels and a plurality of photo sensors, a data driving circuit, a gate driving circuit, and a timing controller. The source drive IC included in the data driving circuit may comprise a DAC, one or more sensing units to receive an electrical signal from the photo sensor in a display period and to receive a sensing signal from the pixel in a blank period, and an ADC to convert the signal output from the sensing unit into digital data.
Claims20
A display device, comprising:
- a plurality of pixels emitting light according to an image signal and a plurality of photo sensors outputting an electrical signal responding to incident light that are included in a display panel;
- a data driving circuit including one or more source drive IC configured to supply the image signal to the plurality of pixels, receive a sensing signal indicating characteristics of the plurality of pixels, and receive the electrical signal from the plurality of photosensors;
- a gate driving circuit configured to generate scan signals to control operations of the plurality of pixels and the plurality of photosensors;
- and
- a timing controller configured to supply control signals to control operations of the data driving circuit and the gate driving circuit and image data to be displayed in the display panel,
- wherein the one or more source drive IC includes:
- a digital-to-analog converter DAC configured to convert the image data supplied from the timing controller into the image signal;
- one or more sensing units configured to receive the electrical signal from the photo sensors in a display period during which the image signal is supplied to the plurality of pixels and to receive the sensing signal from the pixel in a blank period between two display periods;
- and
- an analog-to-digital converter ADC configured to convert a signal output from the sensing unit into digital data.
A method for driving a display device, comprising:
- writing image data to a plurality of pixels in a display period for emitting light by the plurality of pixels in a display panel;
- and
- writing data for sensing pixels of a pixel line, receiving sensing signals indicating characteristics of the pixels from the pixels, and converting the sensing signals into digital sensing data in a blank period between two display periods,
A display device, comprising:
- a plurality of pixels disposed at a display panel emitting light according to an image signal;
- a plurality of photo sensors disposed at the display panel and outputting an electrical signal responding to incident light;
- a source drive IC configured to supply the image signal to the plurality of pixels, receive a sensing signal indicating characteristics of the plurality of pixels, and receive the electrical signal from the plurality of photo sensors,
- wherein the source drive IC includes:
- a digital-to-analog converter DAC configured to convert the image data supplied from a timing controller into the image signal, a sensing unit configured to receive the electrical signal from the photo sensors during a display period during which the image signal is supplied to the pixel and to receive the sensing signal from the pixel in a blank period between two display periods, an analog-to-digital converter ADC configured to convert a signal output from the sensing unit into digital data, wherein the plurality of photo sensors and the plurality of pixels are connected to the source drive IC through a sensing line;
- and
- a gate driving circuit configured to generate scan signals to control operations of the plurality of pixels and the plurality of photo sensors.
Dependencies are inferred from the claim text.