CN2768336Y - Handset with replaceable liquid crystal display screen - Google Patents
Handset with replaceable liquid crystal display screen Download PDFInfo
- Publication number
- CN2768336Y CN2768336Y CN 200420099341 CN200420099341U CN2768336Y CN 2768336 Y CN2768336 Y CN 2768336Y CN 200420099341 CN200420099341 CN 200420099341 CN 200420099341 U CN200420099341 U CN 200420099341U CN 2768336 Y CN2768336 Y CN 2768336Y
- Authority
- CN
- China
- Prior art keywords
- lcds
- display screen
- replaceable
- line
- handset
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a handset with a replaceable liquid crystal display screen, which comprises a handset main board and a liquid display screen, wherein the CPU on the handset main board is connected with the liquid display screen by at least one product identifying terminal line. The product is identified by the way that the inner part of the liquid crystal display screen is connected with the ground or is connected with a power supply, or different kinds of voltage is arranged on an AD converting line. The utility model only occupies few hardware resources of the handset, and can interchange and automatically identify the LCD modules in various types by making use of one software version.
Description
Technical field
The utility model belongs to the wireless communication terminal field, specifically relates to have the mobile phone of LCDs.
Background technology
In mobile phones design,, often need the die sinking making of how tame producer, test etc. at present as LCD liquid crystal display panel module for crucial portion product.Because the LCD module is special portion's product, use it to want adapted special driving software, the drive software of the corresponding special use of each LCD module, present in addition most of LCD module is not provided with special I D number, and therefore can't read ID number by " reading " signal discerns the LCD module.
In the present mobile phone development design, the LCD portion product of how tame manufacturer have been adopted, present solution be for the LCD module of a producer of every use will a version of adapted software, there is the LCD module of a plurality of producers that the software of a plurality of versions is just arranged, the software version of mobile phone is many, bring difficulty for research and development, production management and after-sale service, production efficiency is low.
Summary of the invention
The purpose of this utility model, just be to solve the LCD module of a producer of every use, this problem of software that will a version of adapted provides under a kind of the condition that takies mobile phone hardware resource seldom, solves the technical scheme that can exchange between the LCD of the many producers module.
In order to achieve the above object, the utility model provides a kind of mobile phone with replaceable LCDs, comprises cell phone mainboard, LCDs, and the CPU on the cell phone mainboard links to each other with LCDs by at least one root product identification end line.
Described product identification end line is the CPU detection line, and LCDs and portion product are discerned pin that end line links to each other inner ground connection or connect power supply.Should connect the payment to a porter of a CPU input pipe by the correspondence pin on cell phone mainboard, CPU detects this identification end line, if " ground connection " then is the A LCDs, if " connecing power supply " then is the B LCDs, and turns to corresponding driving driven by program LCD module.
Described product identification end line also can be AD conversion line, and the voltage of varying strength is arranged on the AD conversion line that LCDs is connected with CPU, and voltage range is 0-2.5V.Different LCD module transfer thread-changings are provided with different voltage, and the reliability for guaranteeing to differentiate is provided with the voltage spacing and is no less than 0.3V.Distinguish different LCD modules by detecting voltage, change different LCD drivers over to.
The utility model only takies mobile phone hardware resource seldom, just can software version of an adapted, realize that the LCD module of multiple model is exchanged and identification automatically, and simplified production process, improved production efficiency.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is the block diagram that connects LCDs by the CPU detection line;
Fig. 2 is the block diagram that connects LCDs by AD conversion line;
Fig. 3 is a circuit diagram of the present utility model.
Embodiment
Embodiment 1, can replace the mobile phone of 2 kinds of LCDs, as shown in Figure 1, comprises cell phone mainboard 1, LCDs 4, and the LCDs 5 of another kind of model, the CPU2 on the cell phone mainboard links to each other with LCDs by root product identification end line 3.The pin that LCDs 4 links to each other with portion product identification end line is at inner ground connection (" L "), and LCDs 5 and portion product are discerned pin that end line links to each other at internal interface power supply (" H ").On cell phone mainboard, should connect the payment to a porter of a CPU input pipe by the correspondence pin, CPU detects this identification end line, if " L " then is LCDs 4, if " H " then is LCDs 5, and turn to corresponding driving driven by program LCD module, be fit to two tame LCD portion product thereby solve a cover cell phone software, enhance productivity.
If the LCDs of 3-5 kind model is arranged, the CPU detection line will be increased to 2 (can distinguish 4 producers at most) or 3 (can distinguish 8 producers at most) from 1, is feasible in principle, but will takies cpu resource, and make hardware circuit more miscellaneous.At this situation, we can still adopt the single line head it off.
Embodiment 2, as described in Figure 2, detection pin on the mainboard does not use the incoming line of CPU at this moment, and use AD of CPU to change line 6 (general mobile phone master chip has many standby AD incoming lines), 5 types LCDs is arranged, AD conversion line in the different LCD modules is provided with different voltage, voltage range can be arranged between the 0-2.5V, be the reliability that guarantees to differentiate, the voltage spacing is set is no less than 0.3V, in this embodiment, it is 0 that the conversion line of LCDs 7 is provided with voltage, and it is 0.4V that the conversion line of LCDs 8 is provided with voltage, and it is 1.6V that the conversion line of LCDs 11 is provided with voltage, other two LCDs adopt omissive representation, enumerate no longer one by one.When mainboard was communicated with LCDs, CPU detected the voltage value on the AD conversion line, if voltage is 0, it then is LCDs 7, the driver of primer fluid crystal display screen 7 if voltage is 0.4V, then is a LCDs 8, the driver of primer fluid crystal display screen 8, if voltage is 1.6V, then be LCDs 11, the driver of primer fluid crystal display screen 11, embodiment 2 distinguishes the LCD module of different models by detecting voltage, changes different software drivers over to.
Fig. 3 is a circuit diagram of the present utility model, mobile phone among the figure is one and renovates the shape mobile phone, mainboard is connected with the LCD screen by connector, the connector 12 of CN5001 model is the connector that mainboard connects 30 pins of LCD LCD MODULE, wherein the 19th pin (ID) 13 is differentiated pin for the LCD module, in mainboard, be connected to input/output port-GPIO 08 line of master chip CPU, the producer that CPU can automatic distinguishing LCD when inserting the LCD module of different manufacturers from CN5001 connector 12, and adapted corresponding driving program, make the complete machine operate as normal.
Claims (6)
1. the mobile phone with replaceable LCDs comprises cell phone mainboard, and LCDs is characterized in that the CPU on the cell phone mainboard links to each other with LCDs by root product identification end line.
2. the mobile phone with replaceable LCDs according to claim 1 is characterized in that described product identification end line is the CPU detection line.
3. the mobile phone with replaceable LCDs according to claim 1 and 2 is characterized in that the continuous pin of the inner product identification of LCDs end line is inner ground connection or connect power supply.
4. the mobile phone with replaceable LCDs according to claim 1 is characterized in that described product identification end line is AD conversion line.
5. the mobile phone with replaceable LCDs according to claim 4 is characterized in that the AD that LCDs is connected with CPU changes the voltage that varying strength is arranged on the line.
6. according to claim 4 or 5 described mobile phones with replaceable LCDs, it is characterized in that voltage range is 0-2.5V, the voltage spacing is 0.3V at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420099341 CN2768336Y (en) | 2004-12-20 | 2004-12-20 | Handset with replaceable liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420099341 CN2768336Y (en) | 2004-12-20 | 2004-12-20 | Handset with replaceable liquid crystal display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768336Y true CN2768336Y (en) | 2006-03-29 |
Family
ID=36682204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420099341 Expired - Fee Related CN2768336Y (en) | 2004-12-20 | 2004-12-20 | Handset with replaceable liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768336Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702299A (en) * | 2009-10-29 | 2010-05-05 | 中兴通讯股份有限公司 | System and method for identifying LCD module |
| CN101986381A (en) * | 2010-11-04 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for recognizing liquid crystal display screen and terminal |
| CN102404520A (en) * | 2011-11-22 | 2012-04-04 | 四川长虹电器股份有限公司 | Liquid crystal screen and method for setting screen parameter |
| CN103903541A (en) * | 2012-12-27 | 2014-07-02 | 联想(北京)有限公司 | Driving method and electronic device |
| CN105658143A (en) * | 2013-10-25 | 2016-06-08 | 豪夫迈·罗氏有限公司 | System and method for display type detection of a handheld medical device |
-
2004
- 2004-12-20 CN CN 200420099341 patent/CN2768336Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702299A (en) * | 2009-10-29 | 2010-05-05 | 中兴通讯股份有限公司 | System and method for identifying LCD module |
| CN101986381A (en) * | 2010-11-04 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for recognizing liquid crystal display screen and terminal |
| CN102404520A (en) * | 2011-11-22 | 2012-04-04 | 四川长虹电器股份有限公司 | Liquid crystal screen and method for setting screen parameter |
| CN103903541A (en) * | 2012-12-27 | 2014-07-02 | 联想(北京)有限公司 | Driving method and electronic device |
| CN103903541B (en) * | 2012-12-27 | 2017-03-01 | 联想(北京)有限公司 | A kind of driving method and electronic equipment |
| CN105658143A (en) * | 2013-10-25 | 2016-06-08 | 豪夫迈·罗氏有限公司 | System and method for display type detection of a handheld medical device |
| CN105658143B (en) * | 2013-10-25 | 2019-10-11 | 豪夫迈·罗氏有限公司 | The system and method that type of display for handheld medical device detects |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |