CN103617787B - A kind of device and method improving LCD display module picture refreshing frequency - Google Patents
A kind of device and method improving LCD display module picture refreshing frequency Download PDFInfo
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- CN103617787B CN103617787B CN201310648494.XA CN201310648494A CN103617787B CN 103617787 B CN103617787 B CN 103617787B CN 201310648494 A CN201310648494 A CN 201310648494A CN 103617787 B CN103617787 B CN 103617787B
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Abstract
The invention discloses a kind of device and method improving LCD display module picture refreshing frequency, comprise signal generator, control module, LCD display module and outer memory module, described outer memory module comprises three exterior storage static RAM SRAM, three SRAM are connected with control module respectively, and signal generator is connected with control module respectively with LCD display module.The present invention can realize the conversion of any frame frequency, meets the requirement of different resolution, can ensure the integrality of picture simultaneously.
Description
Technical field
The present invention relates to a kind of frame-rate conversion control technology, in particular a kind of device and method improving LCD display module picture refreshing frequency.
Background technology
LCD liquid crystal display is the abbreviation of Liquid Crystal Display, the structure of LCD places liquid crystal cell in the middle of the glass substrate that two panels is parallel, lower baseplate glass is arranged TF(thin film transistor (TFT)), top glass substrate arranges colored filter, he that cross signal and voltage on TFT and change the rotation direction controlling liquid crystal molecule, thus reach and control the outgoing of each pixel polarized light and whether reach display object.Present LCD has substituted CRT becomes main flow, and price also have dropped a lot, and fully universal.
The response time of LCD refers to the reaction velocity of liquid crystal display for input signal, and namely liquid crystal is bright or by bright turn of dark reaction time by blackout, usually with millisecond (ms) for unit.Because there is the phenomenon of " persistence of vision " in human eye, the picture of high-speed motion can form of short duration impression in human brain, the picture display speed that people can accept is generally 24 per second, if display speed is lower than this standard, people obviously will feel pause and the discomfort of picture.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of device and method improving LCD display module picture refreshing frequency, the requirement of different resolution liquid crystal display can either be met, can effectively ensure that picture is undistorted again, show clear, smooth.
The present invention is achieved by the following technical solutions, the present invention includes signal generator, control module, LCD display module and outer memory module, described outer memory module comprises three exterior storage static RAM SRAM, three SRAM are connected with control module respectively, and signal generator is connected with control module respectively with LCD display module.
As one of optimal way of the present invention, described controller is FPGA or IP kernel.
Improve a method for LCD display module picture refreshing frequency, comprise the following steps:
(1) control module is using the clock of input signal as writing clock, and by outer memory module write operation, by the picture of reception successively stored in three SRAM, each SRAM is each only stored in a width picture;
(2) control module produces one and different from writing clock frequency reads clock, read operation is carried out to outer memory module, every width picture is read successively, every a few width picture, a certain width picture can be read twice during read operation, or every a few width picture a certain width picture skipped and read next width picture, thus realize frame-rate conversion;
(3) control module is by sending read-write to three SRAM, and a SRAM only carries out read or write at one time, during each read-write operation, has a SRAM to be in idle condition, ensures the complete of each width picture by alternation.
The present invention has the following advantages compared to existing technology: the present invention can realize the conversion of any frame frequency, meets the requirement of different resolution, can ensure the integrality of picture simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present embodiment comprises signal generator 1, control module 2, LCD display module 3 and outer memory module 4, described outer memory module 4 comprises three exterior storage static RAM SRAM5, three SRAM5 are connected with control module 2 respectively, and signal generator 1 is connected with control module 2 respectively with LCD display module 3.Signal input module is the signal generator 1 of different resolution, provides the input signal of LCD display module 3.Controller is FPGA or IP kernel, process input signal, control external memory storage, raising picture refreshing frequency.
Improve a method for LCD display module 3 picture refreshing frequency, comprise the following steps:
(1) control module 2 is using the clock of input signal as writing clock, and by outer memory module 4 write operation, by the picture of reception successively stored in three SRAM5, each SRAM5 is each only stored in a width picture;
(2) control module 2 produces one and different from writing clock frequency reads clock, read operation is carried out to outer memory module 4, every width picture is read successively, every a few width picture, a certain width picture can be read twice during read operation, or every a few width picture a certain width picture skipped and read next width picture, thus realize frame-rate conversion;
(3) control module 2 is by sending read-write to three SRAM5, and a SRAM5 only carries out read or write at one time, during each read-write operation, has a SRAM5 to be in idle condition, ensures the complete of each width picture by alternation.
Claims (2)
1. use the device improving LCD display module picture refreshing frequency to improve a method for LCD display module picture refreshing frequency, it is characterized in that, comprise the following steps:
(1) control module (2) using the clock of input signal as writing clock, by to outer memory module (4) write operation, by the picture of reception successively stored in three SRAM (5), each SRAM (5) is each only stored in a width picture;
(2) what control module (2) generation one was different from writing clock frequency reads clock, read operation is carried out to outer memory module (4), every width picture is read successively, every a few width picture, a certain width picture can be read twice during read operation, or every a few width picture a certain width picture skipped and read next width picture, thus realize frame-rate conversion;
(3) control module (2) is by sending read-write to three SRAM (5), a SRAM (5) only carries out read or write at one time, during each read-write operation, there is a SRAM (5) to be in idle condition, ensure the complete of each width picture by alternation;
The device of described raising LCD display module picture refreshing frequency, comprise signal generator (1), control module (2), LCD display module (3) and outer memory module (4), described outer memory module (4) comprises three exterior storage static RAM SRAM (5), three SRAM (5) are connected with control module (2) respectively, and signal generator (1) is connected with control module (2) respectively with LCD display module (3).
2. the method using the device improving LCD display module picture refreshing frequency to improve LCD display module picture refreshing frequency according to claim 1, it is characterized in that, described control module is FPGA or IP kernel.
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| CN201310648494.XA CN103617787B (en) | 2013-12-04 | 2013-12-04 | A kind of device and method improving LCD display module picture refreshing frequency |
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| CN201310648494.XA CN103617787B (en) | 2013-12-04 | 2013-12-04 | A kind of device and method improving LCD display module picture refreshing frequency |
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| CN103617787A CN103617787A (en) | 2014-03-05 |
| CN103617787B true CN103617787B (en) | 2015-08-12 |
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| CN110191536B (en) | 2019-05-24 | 2021-11-12 | 亿信科技发展有限公司 | Drive control circuit, drive control chip, integrated packaging device, display system and sparse driving method |
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| CN101350186A (en) * | 2007-07-19 | 2009-01-21 | 冲电气工业株式会社 | Data distribution device and data distribution method |
| CN101540144A (en) * | 2008-03-18 | 2009-09-23 | 深圳安凯微电子技术有限公司 | Method, device and system for refreshing double-screen LCD |
| CN201853471U (en) * | 2010-07-12 | 2011-06-01 | 北京景山创新通信技术有限公司 | Dynamic LCD (Liquid Crystal Display) refreshing frequency switching device |
| CN202650497U (en) * | 2012-06-07 | 2013-01-02 | 顾菘 | A LCD display controller |
| CN103165093A (en) * | 2013-02-26 | 2013-06-19 | 深圳市金立通信设备有限公司 | Method for adjusting screen refresh rate and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050052386A1 (en) * | 2003-08-28 | 2005-03-10 | Su-Hyun Kwon | Method of processing image signals for improved image quality |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350186A (en) * | 2007-07-19 | 2009-01-21 | 冲电气工业株式会社 | Data distribution device and data distribution method |
| CN101540144A (en) * | 2008-03-18 | 2009-09-23 | 深圳安凯微电子技术有限公司 | Method, device and system for refreshing double-screen LCD |
| CN201853471U (en) * | 2010-07-12 | 2011-06-01 | 北京景山创新通信技术有限公司 | Dynamic LCD (Liquid Crystal Display) refreshing frequency switching device |
| CN202650497U (en) * | 2012-06-07 | 2013-01-02 | 顾菘 | A LCD display controller |
| CN103165093A (en) * | 2013-02-26 | 2013-06-19 | 深圳市金立通信设备有限公司 | Method for adjusting screen refresh rate and display device |
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Address after: 241000 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui Applicant after: Avic Huadong Photoelectric Co., Ltd. Address before: 230001 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui Applicant before: Avic Huadong Photoelectric Co., Ltd. |
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