CN1200528A - Method and device for enhancing multi-functional selection with liquid crystal displaying driver - Google Patents
Method and device for enhancing multi-functional selection with liquid crystal displaying driver Download PDFInfo
- Publication number
- CN1200528A CN1200528A CN 97112097 CN97112097A CN1200528A CN 1200528 A CN1200528 A CN 1200528A CN 97112097 CN97112097 CN 97112097 CN 97112097 A CN97112097 A CN 97112097A CN 1200528 A CN1200528 A CN 1200528A
- Authority
- CN
- China
- Prior art keywords
- data
- controlled system
- signal
- time controlled
- 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.)
- Granted
Links
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000009183 running Effects 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006870 function Effects 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 230000004913 activation Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Abstract
The invention relates to a method for multi-functional enhancement selection of liquid crystal display driver and its equipment. It is mainly characterized by that said invented method uses a command pattern mode to make the data of RAM can map onto panel and liquid crystal display panel applicable to different level, and uses the time control system device and command pattem mode to make it be capable of utilizing the functions of test base end, buzzer and interrupt request end, etc. to implement interactive switching operation so as to obtain the effect of enhancing multi-function selection.
Description
The present invention relates to the method and the device of the selection of a kind of LCD driver enhancing multi-functional, refer to a kind of command mode control that utilizes especially, the structure of energy operate time control system is selected effect to reach enhancing multi-functional.
Press, traditional LCD driver, see also shown in Figure 1, be traditional LCD driver device block schematic diagram, at first by external world's input data bit element (110), select control signal (111), reach the synchronous shift registors (10) of importing microcontroller such as sprocket pulse (112), and the shift registor of microcontroller (10), data with its several bits of depositing, move in the driver with tandem moor, be written into control signal (113) by the microcontroller input again, data latching (11) with several bits in the driver, carry the level shifter (12) of latch data driving circuit again, cooperate the input (114) of display frequency, make its control level shift unit (12), data are gone to present its data via being subjected to the external world that the level driving circuit (13) of fixed-bias transistor circuit (116) and activation (115) signal is provided, driving to deliver to display panels (14).
See also shown in Figure 2, action flow chart for the LCD driver of tradition, at first start shift registor (21), interface (a) via microcontroller and driver, import several bit data (22), again via being written into control signal, with its data latching (23), and its data and display frequency are controlled in level shifter (24), cooperate the external world to provide bias voltage and activation driving circuit driving data to deliver to panel (25), panel can show its data (26) this moment, finishes (27) up to the lump-sum data presentation.
By above-mentioned traditional LCD driver, learn that it has following shortcoming:
1. certain lump-sum data, it contains the data of several bits, be with tandem moor input microcontroller shift registor (Shift register), it is contained any wherein when a bit makes a mistake for any data in just thinking, then the lump-sum data must be re-entered shift registor (Shiftregister), and these programs are quite loaded down with trivial details time-consuming.
2. when drive read was fetched data, the tandem lump-sum data that must will contain several bits were moved to driver one by one by shift registor again, and this unidirectional enter drive can't be made two-way admittance, and data are read back working storage with the misdata correction.
3. find wrong data cases when display panels is accepted data, can't be immediately with certain one point data, but must total data upgrade again.
4. the structure that has only input owing to data terminal in installing, thus micro controller function simply can't be brought into play high-level efficiency and multi-functional control.
Comprehensive the above demonstrate traditional LCD driver, do not met modern actual demand and remain to be improved.
Edge is that the inventor concentrates on studies at above-mentioned shortcoming and cooperate the utilization of scientific principle and propose a kind of design concept rationally and effectively to improve above-mentioned shortcoming.
Therefore, the present invention's fundamental purpose is to provide a kind of method and device with multi-functional selection, mainly is the structure of operate time control system, by the operation of command mode, has to efficiency steps such as selecting test, buzzing or interruption to require the effect of running.
The present invention's a time purpose, the mode that is command mode is operated down, can make the random access memory mapping (enum) data to driving circuit, drive the face of delivering to by its circuit again and show that control system also can be made read mode with random access memory, writes pattern and read the effect of the modified two-way switchings such as pattern that write again in back simultaneously.
Another purpose of the present invention, when being this system halt, then oscillator is to decommission, and to carry out sleep state, can reach the purpose of power saving.
For purpose, feature and effect to the present invention, have further and to understand and approval, existing conjunction with figs. describe in detail as after, wherein:
Fig. 1 is traditional LCD driver device block schematic diagram.
Fig. 2 is the action flow chart of traditional LCD driver.
Fig. 3 is the device calcspar that the enhancing multi-functional of the LCD driver of the embodiment of the invention is selected.
Fig. 4 is the time control system block schematic diagram of the embodiment of the invention.
Fig. 5 is the action flow chart that the enhancing multi-functional of the LCD driver of the embodiment of the invention is selected.
Label declaration:
(1) input system (2) control system
(3) transmission ends of external oscillator (10) shift registor
(11) several bit data (12) level shifters of breech lock
(13) level driver circuit (14) display panels
(110) data bit element (111) is selected control signal
(112) (113) are written into control signal in the timing arteries and veins
(114) display frequency signal (115) enable signal
(116) fixed-bias transistor circuit (21) starts shift registor
(22) import several several bit data of bit data (23) breech lock
(24) level shifter (25) driving data is to panel
(26) driving the output of panel video data (27) lump-sum data finishes
(31) time controlled system (32) instruction decoder
(33) random access memory (34) LCD driver
(35) the built-in oscillator of display panels (411)
(412) quartz (controlled) oscillator or external oscillator (413) multiplex's switch
(414) built-in frequency eliminator (425) and door
(426) buzzing pours into the frequency signal of end (417) programmed
(415) activation device (416) buzzing output terminal
(419) timer (420) supervision timer
(422) or door (424) interrupt request signal output
(51) start the input of power supply (52) control signal and data
(53) time controlled system transmission signals or data (54) pour into frequency
(55) produce frequency signal (531) voluntarily and separate command code
(532) whether decode and finish (533) normal mode
(534) write random access memory
(535) frequency eliminator provides the frequency signal of programmed
(536) data map
(537) bias voltage and the elasticity cycle data of reception programmed
(538) panel shows its data (541) buzzer
(542) timer or supervision timer overflow (543) interrupt request signal produce
(550) reading the modified isotype that writes again in back operates
(551) output is by the data of random access memory
(552) test pattern
(553) frequency eliminator stops the programmed frequency signal
(554) the buzzing end pours into the output of frequency signal (555) display frequency
(556) the segmentation viewing area of test fluid LCD panel and copolar point part
(557) running finishes
(560) read mode operation (561) writes the pattern operation
(a) interface of microcontroller and driver
See also Fig. 3, circuit block diagram for the embodiment of the invention, generally speaking it is a kind of block schematic diagram of device of LCD driver enhancing multi-functional selection, input end at time controlled system (31) has the bit of reading end, write the bit end, select the bit end, and data transmission terminal, the oscillatory system of arranging in pairs or groups is again constructed required a pair of transmission ends, it is shown in dotted line to constitute one group of input system (1), time controlled system (31), collect and read bit, write bit, select bit, reach signals such as frequency, and data also are written into simultaneously, follow time controlled system (31), has multiple output pathway, wherein be to export command code (COMMAND CODE) and decoded signal to instruction decoder (32) decoding synchronously, it is normal mode and test pattern that gained is separated the command code data, wherein the normal mode data are write random-access memory (ram) (33), make it under normal mode control, can do the running that bi-directional data shines upon to liquid crystal display drive circuit (34) by random-access memory (ram) (33), time controlled system (31) is simultaneously also to the data read pattern of random-access memory (ram) (33), write pattern, and read the back modified pattern that writes again etc. and do two-way switching running, in addition, time controlled system (31) is under test pattern control, output display frequency signal is to liquid crystal display drive circuit (34), then driving circuit (34) but elasticity cycle of planning through the bias voltage and the formula of the journeyization that it received, cause the data that it can be suitable for the single-point of different LCD plate application and timely modification panel, export display panels (35) again to and show its segmentation viewing area data of limit together, and time controlled system another the group output/input system (2), shown in dotted line, under normal mode control, the frequency signal of programmed is provided by frequency eliminator, give timer or supervision timer, produce interrupt request signal output when making its overflow.
The structure explanation of time controlled system, see also Fig. 4, Fig. 4 is the time control system structural map of the embodiment of the invention, wherein, connect the oscillation frequency signal that the transmission ends (3) of oscillator is written into frequency signal or is produced by the oscillator of building within the time controlled system (411) outside required by external oscillator or quartz (controlled) oscillator (412), via multiplex's switch (413), select wherein a kind of frequency signal, then transport to built-in frequency eliminator (414), the frequency (417) of programmed is provided under the controlling of normal mode, can enter the activation device (415) in the buzzing system, and additional power source (V
DD), again by its buzzing output terminal (416), produce the sound of buzzing, or provide the frequency (417) of programmed, enter the activation device (418) in the interrupt request system, again during incoming timing device (419), old data or the signal that must remove timer earlier and had, in the time of just being written into frequency signal or input supervision timer (420), also must remove supervision old data or signal that timer had earlier, just can be written into frequency signal, by its overflow action, via multiplex's switch (421), select a kind of frequency signal input activation device (423), cooperate again by supervision regularly enable signal and timer enable signal synchronously or the input of door two ends, (ORGATE) (422), then itself or door (OR GATE) (422) produce an output terminal activation and touch signal, make its time control system by interrupt request output terminal (424), produce interrupt request signal; Other has built-in frequency eliminator (414), also under test pattern, the signal of output low level to door (AND GATE) (425), buzzing input end (426) does not then pour into any frequency signal, then do not have the output of display frequency signal, then promptly provide the frequency signal of programmed to give buzzing system or interrupt request system this moment with door (AND GATE) (425) output terminal; If the signal of frequency eliminator (414) output high level to door (AND GATE) (425), and pour into frequency signal by buzzing input end (426), then display frequency output is arranged, to liquid crystal display drive circuit with door (AND GATE) (425) output terminal.
See also Fig. 5, Fig. 5 is the action flow chart of the embodiment of the invention, at first, start power supply (51), by microcontroller control signal and data are imported (52), and by outer filling frequency signal (54), or by the built-in frequency signal (55) that produces voluntarily in time controlled system, cause its time control system after reception, and energy transmission signals or data (53), wherein via instruction decoder, decoding (531), judge again whether its decoding finishes (532), then decode again if not, this moment, time controlled system also write pattern (560) with random access memory, read and read after repair and write isotype operation (550) again, to export (53) operating system via time controlled system by the data (551) of random access memory to test pattern or normal mode, be chosen under the test mode operation (552) but the frequency signal (553) of frequency eliminator stop supplies journeyization, pour into frequency signal (554) by the buzzing end again, export display frequency (555) again, the segmentation viewing area and the copolar point part (556) that cause its energy test fluid LCD panel finish (557) up to running, if be chosen in normal mode (533), decoded data is write random access memory (534), again with data map (536) to driving circuit, its driving circuit and accept time controller output display frequency (555) but and the bias voltage of reception journeyization and elasticity cycle data (537), short tool panel can show the data (538) and the video data of correction, finish (557) up to running, normal mode (533) also can provide the frequency signal (535) of programmed via frequency eliminator, make it can select the buzzing system to produce buzzer (541) or make timer or supervision timer overflow (542), produce interrupt request signal (543), finish (557) up to running, if system halt then built-in oscillator of running or external oscillator then decommission, carry out the situation of sleep, to reach the effect of power saving.
In sum, when knowing that the present invention can provide utilization and the tool progressive on the industry, and the present invention do not see any publication, when the regulation that meets the 22 of Patent Law.
Below only be the present invention's preferred embodiment explanation, other all variation ought still belong in the present invention's invention spirit and the scope that claims limited such as.
Claims (7)
1. the method for LCD driver enhancing multi-functional selection, it is held to levy and is, with command mode running, and the transmission of mat time controlled system, the action of each that its LCD driver is had select video data, buzzing, interrupt request signal or test.
2. the method for LCD driver enhancing multi-functional as claimed in claim 1 selection, its step of carrying out test is:
(a) by pouring into frequency signal outward or producing frequency signal voluntarily and control signal and data sync input;
(b) time controlled system transmission signals or data;
(c) time controlled system and random access memory write, read and read modified isotype operation access data and time control system synchronous transmission command code and the decoded signal entry instruction decoder decode down of writing again in back;
(d) judge whether the decoding finish;
(e), then continue the decoding action if not if then feedbacking decoded data to time controlled system carries out test pattern;
(f) frequency eliminator stops to provide the frequency signal of programmed;
(g) the buzzing end pours into frequency signal;
(h) cause display frequency to transport to driving circuit by time controlled system;
(i) and then the segmentation viewing area of test fluid LCD panel and copolar point part;
(j) finish up to running.
3. the method for LCD driver enhancing multi-functional as claimed in claim 1 selection, its step of carrying out video data is:
(a) by pouring into frequency signal outward or producing frequency signal voluntarily and control signal and data sync input;
(b) time controlled system transmission signals or data;
(c) time controlled system and random access memory write, read and read modified isotype operation access data and time control system synchronous transmission command code and the decoded signal entry instruction decoder decode down of writing again in back;
(d) judge whether the decoding finish;
(e), then continue the decoding action if not if then feedbacking decoded data to time controlled system carries out test pattern;
(f) write random access memory;
(g) will deposit the data map of random access memory again in to driving circuit;
(h) and by time controlled system also in test pattern output frequency to driving circuit;
(i) driving circuit will be accepted the bias voltage of programmed and elasticity and revise data and transport to display panels;
(j) panel shows its data;
(k) finish up to running.
4. the method for LCD driver enhancing multi-functional as claimed in claim 1 selection, its step of carrying out buzzing is:
(a) by pouring into frequency signal outward or producing frequency signal voluntarily and control signal and data sync input;
(b) time controlled system transmission signals or data;
(c) time controlled system and random access memory write, read and read modified isotype operation access data and time control system synchronous transmission command code and the decoded signal entry instruction decoder decode down of writing again in back;
(d) judge whether the decoding finish;
(e), then continue the decoding action if not if then feedbacking decoded data to time controlled system carries out test pattern;
(f) frequency eliminator provides the frequency signal of programmed;
(g) then produce buzzer;
(h) finish up to all runnings.
5. the method for LCD driver enhancing multi-functional as claimed in claim 1 selection, its step of carrying out the look-at-me requirement is:
(a) by pouring into frequency signal outward or producing frequency signal voluntarily and control signal and data sync input;
(b) time controlled system transmission signals or data;
(c) time controlled system and random access memory write, read and read modified isotype operation access data and time control system synchronous transmission command code and the decoded signal entry instruction decoder decode down of writing again in back;
(d) judge whether the decoding finish;
(e), then continue the decoding action if not if then feedbacking decoded data to time controlled system carries out test pattern;
(f) frequency eliminator provides the frequency signal of programmed;
(g) timer or supervision timer overflow then;
(h) then interrupt request signal produces;
(i) finish up to running.
6. the device of LCD driver enhancing multi-functional selection is made up of time controlled system and liquid crystal display drive circuit, it is characterized in that it comprises:
Instruction decoder accepts that time controlled system is conveyed into decoded signal and command code is decoded as normal mode and test pattern;
Random access memory can be accepted the decoded data that instruction decoder transmits;
Liquid crystal display drive circuit, accept the display frequency of time controlled system and random access memory reflect to data so that output display panels data.
7. the device of LCD driver enhancing multi-functional as claimed in claim 6 selection, this time controlled system comprises:
Built-in oscillator produces oscillation frequency signal voluntarily;
External oscillator is by pouring into oscillation frequency signal outward;
Multiplex's switch is electrically connected to this built-in oscillator and this external oscillator signal of can choosing any one kind of them;
Frequency eliminator is electrically connected the frequency that this multiplex's switch provides programmed;
Buzzer provides the frequency signal of programmed by this frequency eliminator, makes it produce buzzing;
The interrupt request system provides the frequency signal of programmed by this frequency eliminator, via timer or supervision timer overflow, makes it produce interrupt request signal;
The input signal system accepts to read bit, writes bit, selects signal and data such as bit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971120978A CN1324552C (en) | 1997-05-22 | 1997-05-22 | Method and device for enhancing multi-functional selection with liquid crystal displaying driver |
| HK97101809A HK1002161A2 (en) | 1997-05-22 | 1997-09-22 | An improved multi-function selecting device for lcd driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971120978A CN1324552C (en) | 1997-05-22 | 1997-05-22 | Method and device for enhancing multi-functional selection with liquid crystal displaying driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1200528A true CN1200528A (en) | 1998-12-02 |
| CN1324552C CN1324552C (en) | 2007-07-04 |
Family
ID=5172096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971120978A Expired - Lifetime CN1324552C (en) | 1997-05-22 | 1997-05-22 | Method and device for enhancing multi-functional selection with liquid crystal displaying driver |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1324552C (en) |
| HK (1) | HK1002161A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334459C (en) * | 2003-06-09 | 2007-08-29 | 统宝光电股份有限公司 | Organic luminescent display pixel testing method and apparatus |
| CN105045387A (en) * | 2007-10-01 | 2015-11-11 | 苹果公司 | Movement-based interfaces for personal media device |
| CN103884979B (en) * | 2014-03-13 | 2016-09-07 | 江苏钜芯集成电路技术股份有限公司 | A kind of batch testing method of wireless two-in-one mouse end chip |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111196A (en) * | 1987-03-23 | 1992-05-05 | Esl, Inc. | Electronic information display module and connector therefor |
| JPH08146922A (en) * | 1994-11-18 | 1996-06-07 | Fujitsu General Ltd | Liquid crystal projector |
| CN1087086C (en) * | 1994-12-21 | 2002-07-03 | 盛群半导体股份有限公司 | Device for controlling display device |
| JP3196998B2 (en) * | 1995-04-24 | 2001-08-06 | シャープ株式会社 | Liquid crystal display |
-
1997
- 1997-05-22 CN CNB971120978A patent/CN1324552C/en not_active Expired - Lifetime
- 1997-09-22 HK HK97101809A patent/HK1002161A2/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334459C (en) * | 2003-06-09 | 2007-08-29 | 统宝光电股份有限公司 | Organic luminescent display pixel testing method and apparatus |
| CN105045387A (en) * | 2007-10-01 | 2015-11-11 | 苹果公司 | Movement-based interfaces for personal media device |
| CN103884979B (en) * | 2014-03-13 | 2016-09-07 | 江苏钜芯集成电路技术股份有限公司 | A kind of batch testing method of wireless two-in-one mouse end chip |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1002161A2 (en) | 1998-07-10 |
| CN1324552C (en) | 2007-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100337266C (en) | Display apparatus and display apparatus drive method | |
| CN100337264C (en) | Liquid crystal display and its drive device and method | |
| CN101281337B (en) | Crystal display device and related drive method thereof | |
| CN104978944A (en) | Driving method for display panel, display panel and display device | |
| CN1795487A (en) | Display system with frame buffer and power saving sequence | |
| CN1453761A (en) | Driving apparatus and method for luminous display panel | |
| CN1117318A (en) | Multiprocessor data memory sharing | |
| CN101038717A (en) | Electric charge sharing method and apparatus for display panel | |
| CN1815545A (en) | Gate driver, display device having the same and method of driving the same | |
| CN1609941A (en) | Liquid crystal display device and driving method thereof | |
| CN104658492B (en) | Show the driving device of equipment | |
| CN1664744A (en) | Multilayer system and clock control method | |
| CN1991966A (en) | Driver for liquid crystal display | |
| CN2697702Y (en) | Hierarchical type clock gate control circuit | |
| US7755590B2 (en) | Liquid crystal display device and method of driving the same | |
| CN1200528A (en) | Method and device for enhancing multi-functional selection with liquid crystal displaying driver | |
| CN1870115A (en) | Time sequence controller and source driver of liquid crystal panel and control method and circuit | |
| CN102237055A (en) | Gate driver for liquid crystal display (LCD) and driving method | |
| CN1653407A (en) | Method for effecting the controlled shutdown of data processing units | |
| CN102332244A (en) | Liquid crystal display device and driving method thereof | |
| CN1848236A (en) | Circuit structure for dual resolution design, display panel using same and electronic device | |
| CN1664743A (en) | Multilayer system and clock control method | |
| CN1801313A (en) | Image data transmission and display circuit employing FPGA to control FED | |
| CN101615383A (en) | Be used for driving method and relevant apparatus that LCD reduces consumed power | |
| CN1936779A (en) | Module apparatus and method for controlling auto on/off of clock for saving power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HETAI SEMICONDUCTOR CO., LTD. TO: SHENGQUN SEMICONDUCTOR CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. three, No. two, research road, Hsinchu Science Industrial Park, Taiwan Applicant after: Shengqun Semiconductor Co., Ltd. Address before: No. five, No. two, research road, Hsinchu Science Industrial Park, Taiwan Applicant before: Hetai Semiconductor Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070704 |
|
| CX01 | Expiry of patent term |