Display substrate and display device
US-2024276798-A1 · Aug 15, 2024 · US
Photo sensing device suitable for optical touch display panel and applications thereof
US8928628B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928628-B2 |
| Application number | US-201113236655-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 20, 2011 |
| Priority date | May 18, 2011 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A photo sensing device suitable for an optical touch display panel and applications thereof are provided. The photo sensing device includes a photo sensing unit and a coupling unit. The photo sensing unit is used for sensing whether a touch event is happened/occurred or not, and accordingly outputting a judging signal. The coupling unit is coupled to the photo sensing unit, and is used for enhancing the sensitivity of the sensing unit, so as to increase a difference between the judging signal associated with occurrence of the touch event and the judging signal associated with non-occurrence of the touch event.
First claim
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What is claimed is: 1. A photo sensing device comprising: a photo sensing unit, sensing whether a touch event has occurred or not, and accordingly outputting a judging signal; and a coupling unit, coupled to the photo sensing unit, for enhancing sensitivity of the photo sensing unit, so as to increase a difference between the judging signal associated with occurrence of the touch event and the judging signal associated with non-occurrence of the touch event, wherein the coupli…
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- G06F3/042Primary
Physics · mapped topic
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- What does patent US8928628B2 cover?
- A photo sensing device suitable for an optical touch display panel and applications thereof are provided. The photo sensing device includes a photo sensing unit and a coupling unit. The photo sensing unit is used for sensing whether a touch event is happened/occurred or not, and accordingly outputting a judging signal. The coupling unit is coupled to the photo sensing unit, and is used for enha…
- Who is the assignee on this patent?
- Liu Tzu-Wei, Au Optronics Corp
- What technology area does this patent fall under?
- Primary CPC classification G06F3/042. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).