Light emitting display device
AssigneeLG Display Co., Ltd.
InventorsJun-Hee HAN, Yoon-Seob JEONG
Life of this patent
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Abstract
A light emitting display device includes: a substrate including a display region in which a plurality of subpixels are arranged; a light emitting diode in a subpixel, among the plurality of subpixels, and including an anode electrode, a light emitting layer on the anode electrode, and a cathode electrode on the light emitting layer; a photoresistor in the subpixel and positioned below the light emitting diode; a sensing transistor having a drain electrode connected to the photoresistor and a gate electrode connected to a gate line; and a sensing line connected to a source electrode of the sensing transistor.
Claims22
A light emitting display device, comprising:
- a substrate including a display region in which a plurality of subpixels are arranged;
- a light emitting diode in a subpixel, among the plurality of subpixels, and including an anode electrode, a light emitting layer on the anode electrode, and a cathode electrode on the light emitting layer;
- a photoresistor in the subpixel and positioned below the light emitting diode;
- a sensing transistor having a drain electrode connected to the photoresistor and a gate electrode connected to a gate line;
- and
- a sensing line connected to a source electrode of the sensing transistor.
A light emitting display device, comprising:
- a substrate including a display region in which a plurality of subpixels are arranged;
- a plurality of light emitting diodes, each light emitting diode being disposed in a respective subpixel, among the plurality of subpixels, and including an anode electrode, a light emitting layer on the anode electrode, and a cathode electrode on the light emitting layer;
- a plurality of photoresistors, each photoresistor overlapping an emission region of the respective subpixel and positioned in an emission direction of a light emitting diode disposed in the respective subpixel;
- a sensing line receiving light sensing signals respectively generated by the plurality of photoresistors;
- and
- a plurality of sensing transistors each connecting a respective photoresistor among the plurality of photoresistors to the sensing line,
- wherein the light sensing signals for the plurality of subpixels are sequentially output to the sensing line in a unit of a row line through the plurality of sensing transistors.
A light emitting display device comprising a display region in which a plurality of subpixels are arranged along a plurality of row lines and a plurality of column lines, each of the plurality of subpixels including:
- a first transistor;
- a light emitting diode;
- a driving transistor having a first electrode connected to a power line of high potential voltage, a second electrode connected to an anode electrode of the light emitting diode, and a gate electrode coupled to the first transistor;
- a second transistor coupled to the second electrode of the driving transistor;
- and
- a photoresistor connected to the power line of high potential voltage.
Dependencies are inferred from the claim text.