DE102004014436A1 - Method and arrangement for varying a refresh rate - Google Patents
Method and arrangement for varying a refresh rate Download PDFInfo
- Publication number
- DE102004014436A1 DE102004014436A1 DE200410014436 DE102004014436A DE102004014436A1 DE 102004014436 A1 DE102004014436 A1 DE 102004014436A1 DE 200410014436 DE200410014436 DE 200410014436 DE 102004014436 A DE102004014436 A DE 102004014436A DE 102004014436 A1 DE102004014436 A1 DE 102004014436A1
- Authority
- DE
- Germany
- Prior art keywords
- refresh rate
- varying
- arrangement
- pixels
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0435—Change or adaptation of the frame rate of the video stream
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/02—Graphics controller able to handle multiple formats, e.g. input or output formats
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
Abstract
Die Erfindung betrifft ein Verfahren und eine Anordnung zur Variation einer Bildwiederholfrequenz von aus Bildpunkten und Zeilen bestehenden und auf einem Grafikbildschirm ausgebbaren Videobildern. Das zur Ansteuerung der einzelnen Bildpunkte erforderliche Pixeltaktsignal weist erfindungsgemäß während der Ansteuerung der sichtbaren Bildpunkte eine erste Frequenz auf und wird während einer nichtsichtbaren Phase der Ansteuerung, also während eines Zeilen- und/oder Bildrücklaufs, auf eine zweite Frequenz umgeschaltet. Je nach Dauer der Umschaltung auf die zweite Frequenz kann die entstehende Bildwiederholfrequenz variiert werden.The invention relates to a method and an arrangement for varying a refresh rate of video images consisting of pixels and lines and which can be output on a graphics screen. According to the invention, the pixel clock signal required to drive the individual pixels has a first frequency during the control of the visible pixels and is switched to a second frequency during a non-visible phase of the activation, ie during a line and / or frame return. Depending on the duration of switching to the second frequency, the resulting refresh rate can be varied.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410014436 DE102004014436A1 (en) | 2004-03-24 | 2004-03-24 | Method and arrangement for varying a refresh rate |
EP05100535A EP1580726A3 (en) | 2004-03-24 | 2005-01-27 | Method and device for varying the vertical image refresh frequency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410014436 DE102004014436A1 (en) | 2004-03-24 | 2004-03-24 | Method and arrangement for varying a refresh rate |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004014436A1 true DE102004014436A1 (en) | 2005-10-20 |
Family
ID=34854025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410014436 Ceased DE102004014436A1 (en) | 2004-03-24 | 2004-03-24 | Method and arrangement for varying a refresh rate |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1580726A3 (en) |
DE (1) | DE102004014436A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020132161A1 (en) * | 2020-12-03 | 2022-06-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method and system for deducing a reduced refresh rate in high-resolution headlights |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5758135A (en) * | 1996-09-24 | 1998-05-26 | Seiko Epson Corporation | System and method for fast clocking a digital display in a multiple concurrent display system |
JP2982722B2 (en) * | 1996-12-04 | 1999-11-29 | 日本電気株式会社 | Video display device |
-
2004
- 2004-03-24 DE DE200410014436 patent/DE102004014436A1/en not_active Ceased
-
2005
- 2005-01-27 EP EP05100535A patent/EP1580726A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP1580726A2 (en) | 2005-09-28 |
EP1580726A3 (en) | 2010-03-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
|
8131 | Rejection |