Samsung Display Co., Ltd.

Bon-yong Koo

Minjae Jeong

Jaeyong Jang

Taegyun Kim

Hyunjoon Kim

Sujin Lee

Tae Woo Lim

Hyungjune Kim

Jaehyung Cho

Eunje Jang

Danwon Lim

Jang-bog Ju

A display device includes: first to third pixel circuits, each of which includes a first transistor including a first electrode connected to a first power line, a second electrode connected to the light emitting element, and a control electrode connected to a node, a second transistor including a first electrode connected to a data line, a second electrode connected to the first transistor's first electrode, and a control electrode connected to a write scan line, and a capacitor including a first electrode connected to a constant voltage line and a second electrode connected to the node. The constant voltage line is disposed between the second and third pixel circuits. An extension electrode of the display device is connected to the first electrode of the capacitor of each of the second and third pixel circuits, extends between the second and third pixel circuits, and is connected to the constant voltage line.

Display device

A pixel circuit and a display device including the pixel circuit compensates for a threshold voltage of a first driving transistor using an internal compensation circuit and senses a second driving current of a second driving transistor through sensing transistor using an external compensation circuit to compensate for threshold voltages and mobility of the first and second driving transistor.

Pixel circuit and display device including the same

A display panel includes: sub-pixels each including a storage capacitor configured to have a data voltage written thereto; a capacitor node line connected to the storage capacitor of at least one of the sub-pixels; a compensation reference voltage line configured to receive a compensation reference voltage; a first power supply voltage line configured to receive a first power supply voltage; a first connection transistor configured to connect the compensation reference voltage line to the capacitor node line based on an emission signal; and a second connection transistor configured to connect the first power supply voltage line to the capacitor node line based on the emission signal.

Display panel and display device including the same

A display apparatus includes: a substrate; a pixel circuit layer on the substrate and including a thin-film transistor; a display element layer on the pixel circuit layer and including a display element electrically connected to the thin-film transistor; a color filter layer on the display element layer and including a color filter overlapping the display element and a black matrix having a first side contacting the color filter and a second side extending in an edge direction of the substrate; and a blocking layer between the black matrix and the substrate, wherein a tip end of the blocking layer has no step difference with an end of the black matrix.

Display apparatus and method of manufacturing the same including cutting substrate and black matrix at tip end of blocking layer

A display substrate includes: a pixel circuit including: a switching transistor connected between a first terminal of a compensation capacitor and a data line; and a pixel transistor connected between a second terminal of the compensation capacitor and a first voltage line, the pixel transistor to receive a test voltage; and a test transistor including: a test gate terminal to receive a test signal; a test source terminal electrically connected to the first voltage line; and a test drain terminal electrically connected to the data line.

Growing community of inventors

Yongin-si, South Korea

Bon-yong Koo