CN202352298U - Display drive circuit structure for multi-sectional nixie tube - Google Patents
Display drive circuit structure for multi-sectional nixie tube Download PDFInfo
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- CN202352298U CN202352298U CN201120521705XU CN201120521705U CN202352298U CN 202352298 U CN202352298 U CN 202352298U CN 201120521705X U CN201120521705X U CN 201120521705XU CN 201120521705 U CN201120521705 U CN 201120521705U CN 202352298 U CN202352298 U CN 202352298U
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Abstract
The utility model relates to a display drive circuit structure for a multi-sectional nixie tube. The display drive circuit structure comprises a display driving module consisting of N display output driving ports; each display output driving port is respectively connected with the strobe end of one corresponding multi-sectional nixie tube; the multi-sectional nixie tube comprises subsection display control ports corresponding to a subsection number; each subsection display control port of each multi-sectional nixie tube is respectively connected with one other corresponding display output driving port, except the display output driving ports connected with the strobe ends of the multi-sectional nixie tubes, of the display driving module; and N is not less than 2, and the subsection number is more than N. By the adoption of the display drive circuit structure for the multi-sectional nixie tube, time division multiplexing is used for differentiating bit and section, so that the display output port number of an LED (light emitting diode) display drive circuit is largely reduced, and the output port resources are sufficiently used, therefore the chip cost and packaging cost are lowered; and besides, the display drive circuit structure has the characteristics of simpleness, practicability, stable and reliable working performance, and wider application range.
Description
Technical field
The utility model relates to the SIC (semiconductor integrated circuit) design field, and particularly digital display driver circuit technical field specifically is meant a kind of multistage Digitron display driver circuit structure.
Background technology
At present, the LED display driver circuit is applied to the display driver of small household electrical appliances such as VCD, DVD and electromagnetic oven, micro-wave oven.LED (light emitting diode indicator) display driver is mainly driven by MCU digital interface, data latches, demonstration output and key scan etc. is partly formed, shows wherein that output drives to be divided into position (GRID) output and to export with section (SEG).Show that 18 hop count sign indicating number light emitting diode needs 1GRID * 8SEG; Show that 10 8 hop count sign indicating number light emitting diodes need 10GRID * 8SEG, then show the individual output port of output driving part needs 18 (10+8), too much output port has caused higher chip cost and packaging cost.
See also shown in Figure 1ly, it is the application connection layout of LED display driver circuit in the prior art.
Wherein, circuit connecting relation is following:
The vdd terminal of module " display driver circuit " meets VDD, GND termination GND, DIO holds is that serial data IO port, CLK end are the input end of clock mouth.
● the termination K1 of button SW1, another termination SEG1/KS1;
● the termination K2 of button SW2, another termination SEG1/KS1;
● the termination K1 of button SW3, another termination SEG2/KS2;
● the termination K2 of button SW4, another termination SEG2/KS2;
● the termination K1 of button SW5, another termination SEG3/KS3;
● the termination K2 of button SW6, another termination SEG3/KS3;
● the termination K1 of button SW7, another termination SEG4/KS4;
● the termination K2 of button SW8, another termination SEG4/KS4;
● the termination K1 of button SW9, another termination SEG5/KS5;
● the termination K2 of button SW10, another termination SEG5/KS5;
● the termination K1 of button SW11, another termination SEG6/KS6;
● the termination K2 of button SW12, another termination SEG6/KS6;
● the termination K1 of button SW13, another termination SEG7/KS7;
● the termination K2 of button SW14, another termination SEG7/KS7;
● the termination K1 of button SW15, another termination SEG8/KS8;
● the termination K2 of button SW16, another termination SEG8/KS8;
● a termination SEG1/KS1 of charactron 1 (LED1), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID1;
● a termination SEG1/KS1 of charactron 2 (LED2), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID2;
● a termination SEG1/KS1 of charactron 3 (LED3), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID3;
● a termination SEG1/KS1 of charactron 4 (LED4), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID4;
● a termination SEG1/KS1 of charactron 5 (LED5), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID5;
● a termination SEG1/KS1 of charactron 6 (LED6), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID6;
● a termination SEG1/KS1 of charactron 7 (LED7), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID7;
● a termination SEG1/KS1 of charactron 8 (LED8), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID8;
● a termination SEG1/KS1 of charactron 9 (LED9), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID9;
● a termination SEG1/KS1 of charactron 10 (LED10), b termination SEG2/KS2, c termination SEG3/KS3, d termination SEG4/KS4, e termination SEG5/KS5, f termination SEG6/KS6, g termination SEG7/KS7, dp termination SEG8/KS8, com termination GRID10.
See also shown in Figure 2ly again, it is the LED display driver circuit fundamental diagram among Fig. 1 of prior art.As shown in the figure, from physically making a distinction, different GRID meets different LED to traditional LED display driver circuit with SEG and GRID.During work, what the SEG end was exported is content displayed, and what the GRID end was exported is that the time length that shows is brightness; Each display time slot has only a GRID output effectively, and remaining GRID no datat output is in high-impedance state.Therefore, when LED1 worked, having only had data output on the GRID1, and GRID2～GRID10 all is in idle condition, and resource is not effectively utilized.Therefore, the display mode that uses traditional LED display driver circuit to drive M GRID * N SEG needs M+N to show the output drive ports.
The utility model content
The purpose of the utility model is to have overcome above-mentioned shortcoming of the prior art, provides a kind of and can make full use of the output port resource, effectively reduces chip cost and packaging cost, simple and practical, stable and reliable working performance, scope of application multistage Digitron display driver circuit structure comparatively widely.
In order to realize above-mentioned purpose, the multistage Digitron display driver circuit structure of the utility model has following formation:
This multistage Digitron display driver circuit structure; Comprise driver module; Its principal feature is, described driver module has N and shows the output drive ports, and described each shows that output drive ports is connected with the gating end of a corresponding multistage charactron respectively; The digital pipe of described multistage has and the corresponding segmentation demonstration of number of fragments control port; Each segmentation of each multistage charactron shows that control port removes other corresponding demonstration the demonstration output drive ports that is connected with the gating end of this multistage charactron and exports drive ports and be connected respectively with in the driver module, and N >=2, described number of fragments＜N.
Have the first button control port and the second button control port on the driver module in this multistage Digitron display driver circuit structure, respectively have access to the control button between described each demonstration output drive ports and the described first button control port and the second button control port.
The digital section of multistage in this multistage Digitron display driver circuit structure is the luminous demonstration multistage of a LED charactron.
The luminous demonstration multistage of LED charactron in this multistage Digitron display driver circuit structure is the common cathode charactron or is total to the anode charactron.
Multistage charactron in this multistage Digitron display driver circuit structure is eight sections charactrons, and N＞8.
Adopt the multistage Digitron display driver circuit structure of this utility model, merged into one group of output owing to wherein will show the position of output driving part and section, no longer the differentiation position of physics and section; And through time division multiplex distinguish the position and the section; Thereby realized the ingenious multiplexing of SEG port and GRID port, significantly reduced the demonstration output port quantity of LED display driver circuit, and realized making full use of the output port resource; Chip cost and packaging cost have been reduced; Simple and practical, stable and reliable working performance, the scope of application are comparatively extensive.
Description of drawings
Fig. 1 is the annexation synoptic diagram of LED display driver circuit of the prior art.
Fig. 2 is the principle of work synoptic diagram of LED display driver circuit of the prior art.
Fig. 3 is the annexation synoptic diagram of the multistage Digitron display driver circuit structure of the utility model.
Fig. 4 is the principle of work synoptic diagram of the multistage Digitron display driver circuit structure of the utility model.
Embodiment
In order more to be expressly understood the technology contents of the utility model, the special following examples of lifting specify.
The new LED display driver circuit that the utility model provided, its core concept are not distinguish position and section separately, but position and section are merged to together, replace with one group of output, distinguish position and section through time division multiplex.N shows that output drive ports maximum can support the display mode of section of N position * (N-1).
See also shown in Figure 3; This multistage Digitron display driver circuit structure; Comprise driver module, wherein said driver module has N and shows the output drive ports, and described each shows that output drive ports is connected with the gating end of a corresponding multistage charactron respectively; The digital pipe of described multistage has and the corresponding segmentation demonstration of number of fragments control port; Each segmentation of each multistage charactron shows that control port removes other corresponding demonstration the demonstration output drive ports that is connected with the gating end of this multistage charactron and exports drive ports and be connected respectively with in the driver module, and N >=2, described number of fragments＜N.
Wherein, Have the first button control port K1 and the second button control port K2 on the described driver module, respectively have access to the control button between described each demonstration output drive ports and the described first button control port K1 and the second button control port K2.
Simultaneously; Each of driver module in this multistage Digitron display driver circuit structure shows that the signal of output drive ports is output as time division multiplexing mode; Promptly divide time slot to show output charactron gating signal the output drive ports from each successively; In each time slot, show in the demonstration output drive ports that control port is connected with each segmentation of the multistage charactron of institute gating and to export display drive signals.
Moreover, the digital section of this multistage is the luminous demonstration multistage of a LED charactron, and the luminous demonstration multistage of described LED charactron is the common cathode charactron or is total to the anode charactron.
In the preferred forms of the utility model, described multistage charactron is eight sections charactrons, and N＞8.
In the middle of reality was used, Fig. 2 was a kind of application connection layout of the LED display driver circuit of the utility model, and wherein module " new display driver circuit " is the LED display driver circuit of the utility model.
Circuit connecting relation is following:
The vdd terminal of module " new display driver circuit " meets VDD, GND termination GND, DIO holds is that serial data IO port, CLK end are the input end of clock mouth.
● the termination K1 of button SW1, another termination S1;
● the termination K2 of button SW2, another termination S1;
● the termination K1 of button SW3, another termination S2;
● the termination K2 of button SW4, another termination S2;
● the termination K1 of button SW5, another termination S3;
● the termination K2 of button SW6, another termination S3;
● the termination K1 of button SW7, another termination S4;
● the termination K2 of button SW8, another termination S4;
● the termination K1 of button SW9, another termination S5;
● the termination K2 of button SW10, another termination S5;
● the termination K1 of button SW11, another termination S6;
● the termination K2 of button SW12, another termination S6;
● the termination K1 of button SW13, another termination S7;
● the termination K2 of button SW14, another termination S7;
● the termination K1 of button SW15, another termination S8;
● the termination K2 of button SW16, another termination S8;
● the termination K1 of button SW17, another termination S9;
● the termination K2 of button SW18, another termination S9;
● the termination K1 of button SW19, another termination S10;
● the termination K2 of button SW20, another termination S10;
● a termination S2 of charactron 1 (LED1), b termination S3, c termination S4, d termination S5, e termination S6, f termination S7, g termination S8, dp termination S9, com termination S1;
● a termination S1 of charactron 2 (LED2), b termination S3, c termination S4, d termination S5, e termination S6, f termination S7, g termination S8, dp termination S9, com termination S2;
● a termination S1 of charactron 3 (LED3), b termination S2, c termination S4, d termination S5, e termination S6, f termination S7, g termination S8, dp termination S9, com termination S3;
● a termination S1 of charactron 4 (LED4), b termination S2, c termination S3, d termination S5, e termination S6, f termination S7, g termination S8, dp termination S9, com termination S4;
● a termination S1 of charactron 5 (LED5), b termination S2, c termination S3, d termination S4, e termination S6, f termination S7, g termination S8, dp termination S9, com termination S5;
● a termination S1 of charactron 6 (LED6), b termination S2, c termination S3, d termination S4, e termination S5, f termination S7, g termination S8, dp termination S9, com termination S6;
● a termination S1 of charactron 7 (LED7), b termination S2, c termination S3, d termination S4, e termination S5, f termination S6, g termination S8, dp termination S9, com termination S7;
● a termination S1 of charactron 8 (LED8), b termination S2, c termination S3, d termination S4, e termination S5, f termination S6, g termination S7, dp termination S9, com termination S8;
● a termination S1 of charactron 9 (LED9), b termination S2, c termination S3, d termination S4, e termination S5, f termination S6, g termination S7, dp termination S8, com termination S9;
● a termination S1 of charactron 10 (LED10), b termination S2, c termination S3, d termination S4, e termination S5, f termination S6, g termination S7, dp termination S8, com termination S10.
See also shown in Figure 4ly again, it is a kind of fundamental diagram of the LED display driver circuit of the utility model.As shown in the figure, when the time was in display time slot 1, S1 exported high level; S2-S10 is according to content displayed or output low level or be in high-impedance state; Because the unilateal conduction principle of light emitting diode, LED1 is in the duty of conducting, and LED2-LED10 is in the state by not conducting; When the time was in display time slot 2, S2 exported high level, and S1, S3-S10 is according to content displayed or output low level or be in high-impedance state, and this moment, LED2 was in the duty of conducting, and LED1, LED3-LED10 are in the state by not conducting; And the like, when the time was in display time slot 10, S10 exported high level, and S1-S9 is according to content displayed or output low level or be in high-impedance state, and LED10 is in the duty of conducting, and LED1-LED9 is in the state by not conducting; In a display cycle, LED1-LED10 takes turns conducting, thereby has guaranteed the correctness of displaying contents.
The LED display driver circuit of the utility model is applicable to common sun simultaneously and is total to cloudy charactron; Wherein Fig. 4 is the LED display driver circuit of the utility model a kind of fundamental diagram when connecting altogether positive charactron, and Fig. 3 is that the LED display driver circuit of the utility model is a kind of application connection layout of example with 10 output drive ports (S1-S10).
The core concept of the LED display driver circuit of the utility model is that SEG and GRID are merged into one group of output drive ports S, and the S port had both been exported the SEG data, also exported the GRID data, distinguished through time division multiplex; There is N to show under the situation of exporting drive ports (S1-SN); Each display time slot has only a S port to export as the GRID data; Remaining S port is exported as the SEG data; Utilize the unilateal conduction principle of light emitting diode, each display time slot has only a LED to be in the duty of forward conduction, remaining LED be in oppositely by state; In a display cycle, LED1-LEDN takes turns conducting, has guaranteed the correctness of displaying contents.The hop count decision that connects during by practical application as the quantity of the S port of SEG data output.The LED display driver circuit of the utility model is having under N the situation that shows the output drive ports, and maximum can be supported the display mode of section of N position * (N-1).
In the technical scheme of the utility model; This LED display driver circuit has been realized making full use of the output port resource through output port multiplexing; Thereby dwindled area of chip, reduced packaging cost; And can position that show export structure and section be merged into one group of output, confirm position and section through time division multiplex.
There is N to show output drive ports (S
1-S
N) situation under; Each display time slot has only a S port to export as the GRID data; Remaining S port is exported as the SEG data; Utilize the unilateal conduction principle of light emitting diode, then each display time slot has only a LED to be in the duty of forward conduction, remaining LED be in oppositely by state; In a display cycle, LED1-LEDN takes turns conducting, has guaranteed the correctness of displaying contents.The hop count decision that connects during by practical application as the quantity of the demonstration output drive ports of SEG data output.Different display time slots, different as the demonstration output drive ports of GRID data output.
Having under N the situation that shows the output drive ports, maximum can be supported the display mode of section of N position * (N-1), and this LED display driver circuit is applicable to common sun and cloudy charactron altogether simultaneously.
Adopt above-mentioned multistage Digitron display driver circuit structure, merged into one group of output owing to wherein will show the position of output driving part and section, no longer the differentiation position of physics and section; And through time division multiplex distinguish the position and the section; Thereby realized the ingenious multiplexing of SEG port and GRID port, significantly reduced the demonstration output port quantity of LED display driver circuit, and realized making full use of the output port resource; Chip cost and packaging cost have been reduced; Simple and practical, stable and reliable working performance, the scope of application are comparatively extensive.
In this instructions, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and the scope of the utility model.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (5)
1. multistage Digitron display driver circuit structure; Comprise driver module; It is characterized in that described driver module has N and shows the output drive ports, described each shows that output drive ports is connected with the gating end of a corresponding multistage charactron respectively; The digital pipe of described multistage has and the corresponding segmentation demonstration of number of fragments control port; Each segmentation of each multistage charactron shows that control port removes other corresponding demonstration the demonstration output drive ports that is connected with the gating end of this multistage charactron and exports drive ports and be connected respectively with in the driver module, and N >=2, described number of fragments＜N.
2. multistage Digitron display driver circuit structure according to claim 1; It is characterized in that; Have the first button control port (K1) and the second button control port (K2) on the described driver module, respectively have access to the control button between described each demonstration output drive ports and the described first button control port (K1) and the second button control port (K2).
3. multistage Digitron display driver circuit structure according to claim 1 is characterized in that, the digital section of described multistage is the luminous demonstration multistage of a LED charactron.
4. according to the described multistage Digitron display driver circuit of claim 3 structure, it is characterized in that the luminous demonstration multistage of described LED charactron is the common cathode charactron or is total to the anode charactron.
5. according to each described multistage Digitron display driver circuit structure in the claim 1 to 4, it is characterized in that described multistage charactron is eight sections charactrons, and N＞8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120521705XU CN202352298U (en) | 2011-12-13 | 2011-12-13 | Display drive circuit structure for multi-sectional nixie tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120521705XU CN202352298U (en) | 2011-12-13 | 2011-12-13 | Display drive circuit structure for multi-sectional nixie tube |
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| Publication Number | Publication Date |
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| CN202352298U true CN202352298U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120521705XU Expired - Lifetime CN202352298U (en) | 2011-12-13 | 2011-12-13 | Display drive circuit structure for multi-sectional nixie tube |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800271A (en) * | 2012-08-15 | 2012-11-28 | 无锡华润矽科微电子有限公司 | Control method for multi-digit LED nixie tubes |
| CN103165058A (en) * | 2011-12-13 | 2013-06-19 | 无锡华润矽科微电子有限公司 | Multi-section nixie tube display drive circuit structure |
| CN103258488A (en) * | 2013-06-06 | 2013-08-21 | 江苏沁恒股份有限公司 | Display drive method of LED digital tubes in parallel connection in multiple bit fields |
| CN103500549A (en) * | 2013-09-17 | 2014-01-08 | 浙江绍兴苏泊尔生活电器有限公司 | Driving circuit and driving method of LED or nixie tube |
| CN104113348A (en) * | 2013-04-19 | 2014-10-22 | 江苏沁恒股份有限公司 | Device for button scanning under multi-digit nixie tube driving environment and control method |
| CN104332125A (en) * | 2014-11-13 | 2015-02-04 | 梧州学院 | Nixie tube panel and key control circuit and control method thereof |
-
2011
- 2011-12-13 CN CN201120521705XU patent/CN202352298U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165058A (en) * | 2011-12-13 | 2013-06-19 | 无锡华润矽科微电子有限公司 | Multi-section nixie tube display drive circuit structure |
| CN103165058B (en) * | 2011-12-13 | 2015-07-08 | 无锡华润矽科微电子有限公司 | Multi-section nixie tube display drive circuit structure |
| CN102800271A (en) * | 2012-08-15 | 2012-11-28 | 无锡华润矽科微电子有限公司 | Control method for multi-digit LED nixie tubes |
| CN102800271B (en) * | 2012-08-15 | 2015-07-01 | 无锡华润矽科微电子有限公司 | Control method for multi-digit LED nixie tubes |
| CN104113348A (en) * | 2013-04-19 | 2014-10-22 | 江苏沁恒股份有限公司 | Device for button scanning under multi-digit nixie tube driving environment and control method |
| CN104113348B (en) * | 2013-04-19 | 2017-07-18 | 江苏沁恒股份有限公司 | Device and control method for the key scan under multidigit nixie tube drive environment |
| CN103258488A (en) * | 2013-06-06 | 2013-08-21 | 江苏沁恒股份有限公司 | Display drive method of LED digital tubes in parallel connection in multiple bit fields |
| CN103500549A (en) * | 2013-09-17 | 2014-01-08 | 浙江绍兴苏泊尔生活电器有限公司 | Driving circuit and driving method of LED or nixie tube |
| CN104332125A (en) * | 2014-11-13 | 2015-02-04 | 梧州学院 | Nixie tube panel and key control circuit and control method thereof |
| CN104332125B (en) * | 2014-11-13 | 2017-04-12 | 梧州学院 | Nixie tube panel and key control circuit and control method thereof |
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Address after: 214135 -6, Linghu Avenue, Wuxi Taihu international science and Technology Park, Wuxi, Jiangsu, China, 180 Patentee after: China Resources micro integrated circuit (Wuxi) Co., Ltd Address before: No.180-22, Linghu Avenue, Wuxi, Jiangsu 214000 Patentee before: WUXI CHINA RESOURCES SEMICO Co.,Ltd. |
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Granted publication date: 20120725 |
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