US 10,504,417 B2Granted

Low latency display system and method

AssigneeOmniVision Technologies, Inc.

InventorSunny Yat-san Ng

Life of this patent

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Abstract

A novel display system includes a host and a display. In a particular embodiment the host includes a data scaler and a dual frame buffer. Frames of image data are down-scaled before being transferred to the display, and is up-scaled while being loaded into the frame buffer or the display. The down-scaled frames of image data include less data than the frames of image data. In another embodiment, the process of loading the image data into the display begins before an entire frame of data is loaded into the frame buffer. Increasingly sized portions of the image data, each corresponding to a different color field, are asserted on the display and displayed one at a time. The portions of the frame that were not previously displayed are displayed along with the initial portions of a subsequent frame.

Claims45

Dependent claims

A display system, comprising:

a display including a plurality of individual pixels;
and
a display driver coupled to receive sequential frames of image data and to assert at least a portion of said image data on said pixels of said display;
and wherein
said display driver asserts at least some data corresponding to a frame of said image data on said pixels of said display within a predetermined amount of time after receiving a first portion of said frame of said image data;
and
said predetermined amount of time is less than an amount of time required for said display driver to receive a full frame of said image data;
and
an image data buffer electrically coupled to receive said sequential frames of image data and to provide said sequential frames of image data to said display;
and wherein
said display driver is operative to
assert a portion of a frame of image data on a first set of said pixels of said display,
assert a portion of a subsequent frame of image data on a second set of pixels of said display while said portion of said frame of image data is being asserted on said first set of pixels, and
cause said display to be illuminated with light of a first color while said portion of said frame of image data and said portion of said subsequent frame of image data are being simultaneously asserted on said pixels of said display and before all of said subsequent frame of image data is received in said image data buffer;
one of said first set of pixels and said second set of pixels includes some, but not all, of said pixels of said display;
and
the other of said first set of pixels and said second set of pixels includes the remainder of said pixels of said display.

14 more elements

In a digital display system, a method for displaying digital data, said method comprising:

receiving sequential frames of image data;
asserting at least some data corresponding to a frame of said image data on pixels of a display within a predetermined amount of time after receiving a first portion of said frame of said image data;
asserting a portion of a frame of image data on a first set of said pixels of said display;
asserting a portion of a subsequent frame of image data on a second set of said pixels of said display while said portion of said frame of image data is being asserted on said first set of pixels, and
causing said display to be illuminated with light of a first color while said portion of said frame of image data and said portion of said subsequent frame of image data are being simultaneously asserted on said pixels of said display and before all of said subsequent frame of image data is received in said image data buffer;
wherein said predetermined amount of time is less than an amount of time required to receive each full frame of said image data;
one of said first set of pixels and said second set of pixels includes some, but not all, of said pixels of said display;
and
the other of said first set of pixels and said second set of pixels includes the remainder of said pixels of said display.

6 more elements

In a digital video driver, a method for displaying digital video data, said method comprising:

loading sequential frames of video data into a data buffer, each frame of video data including a plurality of color fields;
loading a first portion of a first color field of a frame of said video data into a display after said first portion of said first color field is loaded into said data buffer and before an entirety of said frame is loaded into said data buffer;
illuminating said display with a first colored light corresponding to said first color field;
loading a first portion of a second color field of said frame of said video data into said display after said first portion of said second color field is loaded into said data buffer and before said entirety of said frame is loaded into said data buffer;
illuminating said display with a second colored light corresponding to said second color field;
loading a first portion of a third color field of said frame of said video data into said display after said first portion of said third color field is loaded into said data buffer;
illuminating said display with a third colored light corresponding to said third color field;
loading a first portion of said first color field of a subsequent frame of video data and a remaining portion of said first color field of said frame of video data into said display after said first portion of said first color field of said subsequent frame of video data is loaded into said data buffer and before an entirety of said subsequent frame is loaded into said data buffer;
illuminating said display with said first colored light;
loading a first portion of said second color field of said subsequent frame of video data and a remaining portion of said second color field of said frame of video data into said display after said first portion of said second color field of said subsequent frame of video data is loaded into said data buffer and before said entirety of said subsequent frame is loaded into said data buffer;
illuminating said display with said second colored light;
loading a first portion of a third color field of said subsequent frame of video data and any remaining portion of said third color field of said frame of video data into said display after said first portion of said third color field of said subsequent frame of video data is loaded into said data buffer;
and
illuminating said display with said third colored light.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/088,916Filed 1 Apr 2016 · us provisional application
Priority: 31 Dec 2015
Published: US 2017/0193895 A16 Jul 2017
Granted: 10 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

G09G 3/2096
Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces…:…
G09G 3/2003
For presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged…:…
G09G 5/022
Characterised by the way in which colour is displayed: using memory planes
G09G 5/393
Control of the bit-mapped memory: arrangements for updating the contents of the bit-mapped memory

Family

Application62/273,558Us provisional application · filed 31 Dec 2015
US 2017/0193895 A1Pre-grant publication · published 6 Jul 2017
US 10,504,417 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

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