Frame pacing for improved experiences in 3D applications
US-12057090-B2 · Aug 6, 2024 · US
Display controller, display device, display system, and method for controlling display device
US8947419B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8947419-B2 |
| Application number | US-201414183858-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2014 |
| Priority date | Jul 31, 2006 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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In one embodiment of the present application, a display controller is capable of changing a refresh rate, indicative of how often a screen displayed on a display device having a plurality of pixels is switched, between a low refresh rate of 40 Hz and a normal refresh rate of 60 Hz and generates (i) a dot clock (reference clock) serving as a timing signal indicative of a timing of operation in the display device, (ii) video data indicative of an image to be displayed on the screen, (iii) Hsync for defining a horizontal period of a display on the screen, and (vi) Vsync for defining a vertical period of the display on the screen, so as to supply the dot clock, the video data, Hsync, and Vsync to the display device, wherein the display controller includes a dot clock generation circuit for generating the reference clock whose frequency is constant without depending on a change of the refresh rate. This makes it possible to provide the display controller which can suppress occurrence of noise also in switching the refresh rate and which does not allow any screen derangement which is caused by the noise.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for controlling a display device having plural pixels, said method comprising the steps of: generating video data to be displayed on a screen; generating a horizontal synchronization signal for defining a horizontal period of a display on the screen; generating a vertical synchronization signal for defining a vertical period of the display on the screen; generating a power control signal which controls operation of a power source circuit…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G09G5/18Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8947419B2 cover?
- In one embodiment of the present application, a display controller is capable of changing a refresh rate, indicative of how often a screen displayed on a display device having a plurality of pixels is switched, between a low refresh rate of 40 Hz and a normal refresh rate of 60 Hz and generates (i) a dot clock (reference clock) serving as a timing signal indicative of a timing of operation in t…
- Who is the assignee on this patent?
- Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification G09G5/18. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 03 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).