CN109119048A - It is a kind of for be free of character library single-color dot matrix display screen character fast refresh display methods - Google Patents
It is a kind of for be free of character library single-color dot matrix display screen character fast refresh display methods Download PDFInfo
- Publication number
- CN109119048A CN109119048A CN201811097524.1A CN201811097524A CN109119048A CN 109119048 A CN109119048 A CN 109119048A CN 201811097524 A CN201811097524 A CN 201811097524A CN 109119048 A CN109119048 A CN 109119048A
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- Prior art keywords
- display screen
- data
- character
- buffer area
- caching
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/39—Control of the bit-mapped memory
- G09G5/393—Arrangements for updating the contents of the bit-mapped memory
Abstract
The present invention relates to a kind of for being free of the character fast refresh display methods of character library single-color dot matrix display screen, this method opens up two pieces of data cache region in the control program of display screen, one piece for storing the character pattern data information that will be shown, another piece for storing the dot array data information in current display screen caching, when updating screen content, the dot array data for needing to show character is first searched in dot array data table, being sequentially written in will show in the caching of character, it is compared again with the data in current display screen caching, different data are cached from current screen data in the caching for really causing the changed data of screen content that will only show, display screen memory is only written into these data in a certain order, the dot array data information in the current display screen caching stored in buffer area is updated simultaneously, to real The fast refresh of existing character.
Description
Technical field
It is the present invention relates to field of display technology, in particular to a kind of fast for the character without character library single-color dot matrix display screen
Speed refreshes display methods.
Background technique
With the rapid development of society and science and technology, the demand to public situation release information is increasing, dot matrix display screen
With brightness height, operating voltage is low, small power consumption, and miniaturization, the service life is long, and impact resistance and steady performance, it is flat for shooting up
The main product that plate is shown is widely used in exhibition center, financial market, hospital, stadiums, street, highway etc.
The information of public place show and advertising in.
Common dot matrix display screen is divided into the display screen with included character library or plug-in word-base chip, and without
Two kinds of display screen of included character library or plug-in word-base chip.When the display task as defined in completing, with included character library
Either character library or plug-in character library that the dot matrix display screen of plug-in word-base chip is usually carried using display screen is quickly read
Chip realizes the function of fast refresh.And when using without the display screen of included character library or plug-in word-base chip, then
It needs to generate the corresponding dot array data of the character first, dot matrix then is written into all data in a certain order in display
Display screen caching, pair of write sequence (i.e. scanning mode) and data that the dot array data of each character is cached by screen data
Neat mode uniquely determines, and the display and refreshing of character are realized with this.In this way, when needing to be implemented new character file
When display task, the data by dot matrix all on display screen is needed all to re-write once.When the character quantity of display increases
When, the writing of data is multiplied.Therefore, this inadequate quick and smooth of spcial character method for refreshing, and refresh rate is low.
Summary of the invention
The present invention for the technical problems in the prior art, provides a kind of for without character library single-color dot matrix display screen
Character fast refresh display methods, realize without character library single-color dot matrix show screen display character when quick and smooth brush
Newly, it improves efficiency.
The technical scheme to solve the above technical problems is that a kind of for being free of character library single-color dot matrix display screen
Character fast refresh display methods, for no corresponding ready-made character library, all characters require to firstly generate dot array data, so
After be sequentially written in more news, a kind of fast refresh scheme is provided, is mainly comprised the steps of:
Step 1: two pieces of data buffer areas are opened up in the control program of display screen, buffer area 1 will be shown for caching
Character pattern data information, buffer area 2 is used to store the dot array data information in current display screen caching；
Step 2: when needing to update screen content, generating the dot array data for needing character to be shown, be sequentially written in caching
In area 1；
Particularly, generating needs the dot array data of character to be shown that can take the mode searched in dot array data table.
Step 3: the data in buffer area 1 being compared with the data in buffer area 2, find out buffer area 1 and buffer area 2
Middle different data, causing screen content that the data of substantial variations occur is the data different from buffer area 2 of buffer area 1；
Step 4: above-mentioned different data are written in a certain order in display screen memory, the alignment thereof with data
It uniquely determines, while updating the corresponding data content of buffer area 2；
Step 5: display screen is according to the data fast refresh interface in display screen memory.
It flexibly can configure the beneficial effects of the present invention are: the method has drawn existing standard character library display methods Refresh Data
The advantages of, while avoiding being repeatedly written invalid data, solve asking for all data refreshed in display screen caching regularly
Topic, realizes the fast refresh of display screen.
Based on the above technical solution, the present invention can also be improved as follows.
Further, described a kind of for being free of the character fast refresh display methods of character library single-color dot matrix display screen, both may be used
To apply in the whole display of single character, it is equally applicable in the multi-section display of large-area displays screen.It is needed in display screen
When the region of display is larger, display screen is first divided into several subregions by the step 1, for each independent subregion,
Corresponding buffer area 1 and buffer area 2 are independently opened up in the control program of display screen, are then successively executed for each individual region
Above method step 2, step 3, step 4 and step 5.When having modified the display caching data in partial region, only by these
The valid data write-in display screen memory being had differences in region, it is last to refresh interface simultaneously.Each region parallel work-flow, to subtract
Few data write operation time, accelerate the refresh process of display screen.
Detailed description of the invention
Fig. 1 is the fast refresh display methods flow chart of the embodiment of the present invention；
Fig. 2 is the signal graph punctuate battle array schematic diagram of the embodiment of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, being the fast refresh display methods flow chart of the embodiment of the present invention.
Fig. 2 is the signal graph punctuate battle array schematic diagram of the embodiment of the present invention.
Below by embodiment combination attached drawing, invention is further described in detail.
The present embodiment is to show 16 × 16 dot matrix signal icon shown in Fig. 2 on a display screen, provides display screen herein
Scanning mode be from left to right, it is first up and then down.If according to existing method, according to a → b, c → d, e → f, g → h it is suitable
Sequence will amount to 32 byte data write-in display screen cachings.When the character quantity of display increases, the writing of data is at multiplication
Add, so that the inadequate quick and smooth of the refreshing of character.Signal using this patent method, in display screen display Fig. 2 of blank
Icon then executes following steps:
Step 1: two pieces of data buffer areas are opened up in the control program of display screen, buffer area 1 will be shown for caching
The corresponding character pattern data information of Fig. 2, buffer area 2 is used to store the dot array data information in current display screen caching；
Step 2: searching in dot array data table needs the corresponding character pattern data of Fig. 2 to be shown, is sequentially written in caching
In area 1；
Step 3: the data in buffer area 1 being compared with the data in buffer area 2, cause screen content to occur real
The data of qualitative change are the data different from buffer area 2 of buffer area 1, i.e., 12 to 16,18,22,26,30 arrange totally 9 bytes,
Step 4: by these different data, i.e., 12 to 16,18,22,26,30 column totally 9 bytes, according to from left to right,
First up and then down is sequentially written in display screen memory, while updating the corresponding data content of buffer area 2；
Step 5: display screen can show the signal graph in Fig. 2 according to the data fast refresh interface in display screen memory
Mark.
In this way, conventional method is compared, the data writing of entire character greatly reduces, to reach fast brushing
New purpose.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of for being free of the character fast refresh display methods of character library single-color dot matrix display screen, which is characterized in that the side
Method includes:
Step 1: two pieces of data buffer areas are opened up in the control program of display screen, buffer area 1 is for caching the word that will be shown
Dot array data information is accorded with, buffer area 2 is used to store the dot array data information in current display screen caching；
Step 2: when needing to update screen content, generating the dot array data for needing character to be shown, be sequentially written in buffer area 1
In；
Step 3: the data in buffer area 1 being compared with the data in buffer area 2, are found out in buffer area 1 and buffer area 2 not
Same data；
Step 4: above-mentioned different data being written in display screen memory, while updating the corresponding data content of buffer area 2；
Step 5: display screen is according to the data fast refresh interface in display screen memory.
2. it is a kind of for being free of the character fast refresh display methods of character library single-color dot matrix display screen according to claim 1,
It further include drawing display screen it is characterized in that, wherein opening up two pieces of data buffer areas in step 1 in the control program of display screen
It is divided into several subregions, for each independent subregion, corresponding buffer area 1 is independently opened up in the control program of display screen
With buffer area 2.
3. it is a kind of for being free of the character fast refresh display methods of character library single-color dot matrix display screen according to claim 1,
It is characterized in that, wherein generating in step 2 needs the dot array data of character to be shown to take the side searched in dot array data table
Formula.
4. it is a kind of for being free of the character fast refresh display methods of character library single-color dot matrix display screen according to claim 1,
It is characterized in that, fixed write sequence wherein is taken by above-mentioned different data write-in display screen memory in step 4, with
The alignment thereof of data uniquely determines.
5. according to the method described in claim 4, it is characterized in that, wherein taking fixed sequence is from left to right, after first upper
Under.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097524.1A CN109119048A (en) | 2018-09-19 | 2018-09-19 | It is a kind of for be free of character library single-color dot matrix display screen character fast refresh display methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097524.1A CN109119048A (en) | 2018-09-19 | 2018-09-19 | It is a kind of for be free of character library single-color dot matrix display screen character fast refresh display methods |
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| CN109119048A true CN109119048A (en) | 2019-01-01 |
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| CN201811097524.1A Pending CN109119048A (en) | 2018-09-19 | 2018-09-19 | It is a kind of for be free of character library single-color dot matrix display screen character fast refresh display methods |
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Citations (7)
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| CN101178729A (en) * | 2007-12-12 | 2008-05-14 | 北京中星微电子有限公司 | Words display process in embedded system and system thereof |
| CN101290746A (en) * | 2008-06-18 | 2008-10-22 | 北京工业大学 | Image updating method of electronic paper screen |
| US20100001981A1 (en) * | 2008-07-03 | 2010-01-07 | Chun-Hsi Chen | Dot-matrix display data refresh voltage charging control method and system |
| CN102013247B (en) * | 2009-09-08 | 2012-10-31 | 北大方正集团有限公司 | Refreshing control method and system of electronic paper screen |
| CN103106877A (en) * | 2013-02-04 | 2013-05-15 | 鸿富锦精密工业（深圳）有限公司 | Electrophoretic display device and driving method thereof |
| CN103455292A (en) * | 2012-05-28 | 2013-12-18 | 展讯通信（上海）有限公司 | Business data display and processing method and device and user equipment |
| CN106157866A (en) * | 2016-06-08 | 2016-11-23 | 深圳瀚星翔科技有限公司 | The display drive method of electronic atomization device midpoint matrix display and device |
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2018
- 2018-09-19 CN CN201811097524.1A patent/CN109119048A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178729A (en) * | 2007-12-12 | 2008-05-14 | 北京中星微电子有限公司 | Words display process in embedded system and system thereof |
| CN101290746A (en) * | 2008-06-18 | 2008-10-22 | 北京工业大学 | Image updating method of electronic paper screen |
| US20100001981A1 (en) * | 2008-07-03 | 2010-01-07 | Chun-Hsi Chen | Dot-matrix display data refresh voltage charging control method and system |
| CN102013247B (en) * | 2009-09-08 | 2012-10-31 | 北大方正集团有限公司 | Refreshing control method and system of electronic paper screen |
| CN103455292A (en) * | 2012-05-28 | 2013-12-18 | 展讯通信（上海）有限公司 | Business data display and processing method and device and user equipment |
| CN103106877A (en) * | 2013-02-04 | 2013-05-15 | 鸿富锦精密工业（深圳）有限公司 | Electrophoretic display device and driving method thereof |
| CN106157866A (en) * | 2016-06-08 | 2016-11-23 | 深圳瀚星翔科技有限公司 | The display drive method of electronic atomization device midpoint matrix display and device |
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Application publication date: 20190101 |