Samsung Display Co., Ltd.

Hyeongseok Kim

Junhyun Park

Mukyung Jeon

Minjae Jeong

Jangmi Kang

Youngwan Seo

Sunhwa Lee

Heejean Park

Gyungsoon Park

Gunhee Kim

Yujin Lee

Chongchul Chai

Kyunghoon Chung

Cheol-Gon Lee

Cheolgon Lee

Soil Yoon

Chong Chul Chai

Jaeyong Jang

Meehye Jung

Minjoo Kim

Soohyun Moon

Jaeun Lee

Seulgi Kim

Sumi Lee

A display apparatus includes a substrate including a first island portion and a second island portion spaced apart from each other and a bridge portion connected between the first island portion and the second island portion, a gate driving circuit arranged in the first island portion, a plurality of first input lines arranged in the second island portion, an output line arranged in the bridge portion and connected to the gate driving circuit, and a connection line arranged in the bridge portion and connected to at least one of the plurality of first input lines, where the output line and the connection line are arranged in different layers, respectively, and arranged to overlap each other.

Display apparatus

A display device includes a substrate including an island portion, a first bridge portion extending from the island portion in a first direction, and a second bridge portion extending from the island portion in a second direction crossing the first direction, a first conductive layer disposed on the substrate and including a first voltage line extending from the island portion to the first bridge portion and the second bridge portion, a second conductive layer disposed on the first conductive layer and including signal lines extending from the island portion to the first bridge portion and a data line extending from the island portion to the second bridge portion, and a third conductive layer disposed on the second conductive layer and including a second voltage line and a third voltage line, which extend from the island portion to the first bridge portion and the second bridge portion, respectively.

Display device

A display apparatus includes: a plurality of light-emitting diodes in a display area; a gate driver in a non-display area around the display area, the gate driver including a plurality of stages; a conductive line in the non-display area; an insulating layer on the conductive line; and a connection line on the insulating layer and electrically connecting the conductive line with a transistor of a first stage from among the plurality of stages.

A display device includes: a display panel including a light emitting element and a pixel circuit unit connected to the light emitting element. The pixel circuit unit includes: a first transistor connected between a drive voltage line and the light emitting element and which operates depending on a potential of a first node; a second transistor connected between a data line and a second node; a first capacitor electrode connected to the first node; a second capacitor electrode connected to the second node and which faces the first capacitor electrode; a third capacitor electrode connected to the second node; a fourth capacitor electrode, which faces the third capacitor electrode and is connected to the drive voltage line; a bridge electrode, which connects the second capacitor electrode and the third capacitor electrode; and a shielding electrode, which overlaps the bridge electrode in a plan view.

A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor including a first electrode connected to a data line, a second electrode, and a gate electrode connected to a first scan line, a third transistor including a first electrode electrically connected to the first node, a second electrode connected to the second electrode of the first transistor, and a gate electrode connected to a second scan line, and a test transistor including a first electrode connected to the first electrode of the first transistor, a second electrode electrically connected to the second electrode of the second transistor, and a gate electrode connected to the second scan line.

Pixel and display device

A gate driving circuit is provided. Each stage of the gate driving circuit includes a first node controller configured to control a voltage level of a first node connected to a gate of a pull-down transistor, and a second node controller configured to control a voltage level of a second node connected to a gate of a pull-up transistor, wherein the first node controller comprises a first circuit and a second circuit, wherein the first circuit is connected between the first node and an input terminal to which a start signal is input, and configured to transfer the start signal to the first node, and the second circuit is connected between the input terminal and the first node, and may be configured to boost a voltage level of a voltage of the first node.

Gate driving circuit

A display device includes a display area and a peripheral area disposed adjacent to the display area, a display element arranged in the display area, a first semiconductor layer, a gate conductive layer, a first connection electrode layer, and a second connection electrode layer, sequentially arranged on a substrate, and a bias voltage supply line arranged in the peripheral area. The bias voltage supply line includes a top supply line and a bottom supply line arranged on different layers, and the top supply line and the second connection electrode layer are arranged on a same layer.

Display device having voltage supply lines in a peripheral area

A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver provides a gate signal to the pixel. The data driver provides a data voltage to the pixel. The emission driver provides an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element which applies a driving current to the light emitting element, a storage capacitor connected to a control electrode of the driving switching element and a bias capacitor including a first electrode connected to the storage capacitor and a second electrode which receives a bias gate signal. A waveform of the bias gate signal varies based on an off ratio representing a ratio of an off period of the emission signal in a frame period.

Display apparatus and method of driving the same

A display panel includes: a plurality of pixels, each of which includes a light emitting element and a pixel circuit for driving the light emitting element; a plurality of scan lines connected to the pixel circuit; and a data line connected to the pixel circuit. The pixel circuit includes: a transfer capacitor connected to a first node and a second node; a first circuit part including the first node; a second circuit including the second node and connected with the light emitting element; and a test unit connected to the first circuit part and the second circuit part.

Display panel and method for inspecting display panel

A display panel includes: an element layer including a light emitting element; and a circuit layer including: a first transistor connected between a first drive voltage line and the light emitting element and operating according to a potential of a first node; a second transistor connected between a data line and a second node; a third transistor connected between the first transistor and the first node; a first capacitor electrode connected to the first node; a second capacitor electrode connected to the second node and facing the first capacitor electrode to form a first capacitor; a third capacitor electrode facing the second capacitor electrode to form a second capacitor and connected to the first drive voltage line; a first bridge electrode electrically connecting the first capacitor electrode and the third transistor; and a second bridge electrode electrically connecting the second capacitor electrode and the second transistor.

Display panel

A display device includes a substrate, a first active pattern above the substrate, a first gate layer above the first active pattern, and including a first capacitor electrode, a second gate layer above the first gate layer, and including a second capacitor electrode overlapping the first capacitor electrode, a second active pattern above the second gate layer, and including an extension portion above the second capacitor electrode, and a connection electrode above the second active pattern, and connecting the extension portion and the first capacitor electrode.

Pixel circuit and display device having the same

A display device includes: an active layer on a substrate; a first switching transistor including a part of the active layer; a second switching transistor including a part of the active layer and in a same plane as at least a part of the first switching transistor in a first direction in a plan view; a first capacitor on the active layer and connected to the second switching transistor; a second capacitor on the active layer and connected to the first switching transistor; a first gate line extending in the first direction and connected to a gate electrode of each of the first and second switching transistors; and a light emitting element on the first gate line.

A display apparatus includes: a substrate including a main display area, a component area including a transmission area, and a peripheral area at an outer side of the main display area; a main pixel circuit at the main display area; an auxiliary pixel circuit at the component area, and including a first wire; and a bottom metal layer between the substrate corresponding to the component area and the auxiliary pixel circuit, and electrically connected to the first wire.

Display apparatus capable of displaying an image where an electronic component is arranged

A display apparatus includes: a first display area comprising a first plurality of pixels; a second display area comprising transmission areas and a second plurality of pixels, wherein: the second plurality of pixels of the second display area are arranged in a buffer display area and a normal display area of the second display area; the buffer display area is adjacent to the first display area; the normal display area is spaced apart from the first display area; and a pixel density of the normal display area is less than a pixel density of the buffer display area; and a blocking metal layer in the second display area and comprising openings corresponding to the transmission areas.

Display apparatus having a plurality of display areas

A pixel circuit includes a light emitting element, a driving switching element, a storage capacitor, a data voltage applying switching element and a first leakage compensation switching element. The driving switching element is configured to apply a driving current to the light emitting element. The storage capacitor is connected to a control electrode of the driving switching element. The data voltage applying switching element is configured to apply a data voltage to the storage capacitor. The first leakage compensation switching element is disposed between the storage capacitor and the data voltage applying switching element.

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Yongin-si, South Korea

Hyeongseok Kim