Display device

Patent metadata

Field	Value
Publication number	US-12405693-B2
Application number	US-202318244463-A
Country	US
Kind code	B2
Filing date	Sep 11, 2023
Priority date	Jan 12, 2021
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

A display device includes a first display area including first pixels, driving electrodes, and sensing electrodes. A second display area includes second pixels, sub-driving electrodes, and sub-sensing electrodes. Auxiliary electrodes are between the first and second display areas. A number of first pixels per unit area of the first display area is greater than a number of second pixels per unit area of the second display area.

First claim

What is claimed is:

1. A display device comprising:
a plurality of driving electrodes;
a plurality of sensing electrodes;
a first auxiliary electrode connected to a first driving electrode among the plurality of driving electrodes; and
a first sub-driving electrode connected to the first auxiliary electrode, and
wherein a shape of the first driving electrode, a shape of the first sub-driving electrode, and a shape of the first auxiliary electrode are different from each other in plan view, and
wherein a maximum width of the first auxiliary electrode is greater than a maximum width of the first driving electrode and a maximum width of the first sub-driving electrode.

2. The display device of claim 1 , further comprising:
a second auxiliary electrode connected to a second driving electrode among the plurality of driving electrodes;
a second sub-driving electrode connected to the second auxiliary electrode; and
a connection electrode between the first sub-driving electrode and the second sub-driving electrode.

3. The display device of claim 2 , further comprising:
a third auxiliary electrode connected to a first sensing electrode among the plurality of sensing electrodes; and
a sub-sensing electrode connected to the third auxiliary electrode, and
wherein the sub-sensing electrode overlaps the connection electrode.

4. The display device of claim 3 , further comprising:
a fourth auxiliary electrode connected to a second sensing electrode among the plurality of sensing electrodes, and
wherein the sub-sensing electrode is connected to the fourth auxiliary electrode.

Assignees

• Samsung Display Co Ltd

Inventors

• Bok Seung Lyong
• Kim Ki Cheol
• Park Ok Kyung

Classifications

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• H10K59/352

  the areas of the RGB subpixels being different · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• H10K50/86

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title