US 11,996,041 B2
Pixel with LED and n-type thin film transistors
Ji Hyun Ka, Yongin-si (KR); Won Kyu Kwak, Yongin-si (KR); and Han Sung Bae, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Aug. 30, 2021, as Appl. No. 17/460,474.
Application 17/460,474 is a continuation of application No. 16/599,890, filed on Oct. 11, 2019, granted, now 11,107,400.
Application 16/599,890 is a continuation of application No. 15/624,041, filed on Jun. 15, 2017, granted, now 10,446,079, issued on Oct. 15, 2019.
Claims priority of application No. 10-2016-0083498 (KR), filed on Jul. 1, 2016.
Prior Publication US 2021/0390907 A1, Dec. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01); G09G 3/3233 (2016.01); G09G 3/3266 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 3/3266 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/0291 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A pixel, comprising:
a first transistor having a gate electrode connected to a first node;
a second transistor connected between a data line and the gate electrode of the first transistor, the second transistor having a gate electrode connected to a first scan line;
a third transistor connected between a second electrode of the first transistor and an initialization power supply, the third transistor having a gate electrode connected to a second scan line different from the first scan line;
a fourth transistor having a first electrode connected to a reference power supply and a second electrode connected to the first node, the fourth transistor having a gate electrode connected to a third scan line different from the first scan line and the second scan line;
a first capacitor connected between a first driving power supply and the second electrode of the first transistor;
a light emitting diode connected to the third transistor and a second driving power supply different from the initialization power supply; and
a parasitic capacitor of the light emitting diode, the parasitic capacitor connected between the first capacitor and the second driving power supply,
wherein the first transistor is to control an amount of current flowing from the first driving power supply to the light emitting diode, and
wherein the first capacitor and the parasitic capacitor are connected in series.