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Display device

專利號
US11758785B2
公開日期
2023-09-12
申請人
Samsung Display Co., Ltd.（KR Yongin-Si）
發(fā)明人
Cheolhwan Eom; Kwang-Min Kim; Hyeaweon Shin; Sang Joon Ryu; Hyungjun An; Minji Lee; Yul Kyu Lee; Jeahyun Lee
IPC分類
H10K59/35; H10K59/131; H01L23/31; H01L23/538; G09G3/3258
技術(shù)領(lǐng)域
pad,wirings,may,wiring,first,second,display,insulation,film,be
地域： Yongin-Si

摘要

A display device may include a display panel including a substrate that includes a display area and a pad area adjacent to the display area, and a first pad and a second pad on the pad area of the substrate, and a chip-on-film package over the pad area of the substrate with the first pad and the second pad in between, the chip-on-film package including an insulation layer, a first wiring on an upper surface of the insulation layer and electrically connected to the first pad, and a second wiring on a lower surface of the insulation layer and electrically connected to the second pad. A first signal having alternating voltage levels may be applied to the first wiring, and a second signal having a constant voltage level may be applied to the second wiring.

說明書

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a continuation application of U.S. patent application Ser. No. 16/899,698 filed on Jun. 12, 2020, which is a continuation application of U.S. patent application Ser. No. 16/259,523 filed on Jan. 28, 2019 (now U.S. Pat. No. 10,686,017), which claims priority to and the benefit of Korean Patent Application No. 10-2018-0044651, filed on Apr. 17, 2018 in the Korean Intellectual Property Office (KIPO), the disclosures of which are incorporated herein in their entirety by reference.

BACKGROUND 1. Field

Embodiments relate to a display device. More particularly, embodiments relate to a display device including a chip-on-film package.

2. Description of the Related Art

A variety of displays have been developed. Examples include liquid crystal displays, plasma displays, field emission displays, light emitting diode displays, and organic light emitting diode displays.

These displays may include a display panel displaying an image and a driving IC for controlling the display of the image on the display panel. The driving IC may apply a control signal, an image signal, etc. to the display panel to drive the display panel. The driving IC may be in the form of a chip.

權(quán)利要求

1
What is claimed is:1. A display device comprising:a substrate comprising a display area and a pad area adjacent to the display area, the pad area comprising a first pad area and a second pad area;a first pixel, a second pixel, and a third pixel disposed in the display area on the substrate, and displaying a red color, a blue color, and a green color, respectively;a first pad in the first pad area on the substrate, the first pad being electrically connected to the first pixel and the second pixel; anda second pad in the second pad area on the substrate, the second pad being electrically connected to the third pixel;wherein the first pad area is between the display area and the second pad area, andwherein a signal having a constant voltage level is applied to the second pad.2. The display device of claim 1, wherein the first pad is positioned at a same layer as the second pad over the substrate.3. The display device of claim 1, wherein the first pad area is closer to the display area than the second pad area.4. The display device of claim 1, wherein the first pixel and the second pixel are in a first column in the display area on the substrate, andwherein the third pixel is in a second column adjacent to the first column in the display area on the substrate.5. The display device of claim 1, wherein a signal having alternating voltage levels is applied to the first pad.6. A display device comprising:a substrate comprising a display area and a pad area adjacent to the display area, the pad area comprising a first pad area and a second pad area;a plurality of first pixels, a plurality of second pixels, and a plurality of third pixels disposed in the display area on the substrate, and displaying a red color, a blue color, and a green color, respectively;a plurality of first pads in the first pad area on the substrate, the plurality of first pads being electrically connected to the plurality of first pixels and the plurality of second pixels, respectively; anda plurality of second pads in the second pad area on the substrate, the plurality of second pads being electrically connected to the plurality of third pixels, respectively,wherein the first pad area is between the display area and the second pad area, andwherein a signal having a constant voltage level is applied to each of the plurality of second pads.7. The display device of claim 6, wherein the plurality of first pads are positioned at a same layer as the plurality of second pads over the substrate.8. The display device of claim 6, wherein the first pad area comprises a first pad portion in a left side of the first pad area in a plan view and a second pad portion in a right side of the first pad area in the plan view, andwherein the second pad area comprises a third pad portion in a left side of the second pad area in the plan view and a fourth pad portion in a right side of the second pad area in the plan view.9. The display device of claim 6, wherein the plurality of first pixels and the plurality of second pixels are in odd columns in the display area on the substrate, andwherein the plurality of third pixels are in even columns in the display area on the substrate.10. The display device of claim 6, wherein a signal having alternating voltage levels is applied to each of the plurality of first pads.
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