CN202110536U - SOC chip supporting various display screens - Google Patents
SOC chip supporting various display screens Download PDFInfo
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- CN202110536U CN202110536U CN2011202356760U CN201120235676U CN202110536U CN 202110536 U CN202110536 U CN 202110536U CN 2011202356760 U CN2011202356760 U CN 2011202356760U CN 201120235676 U CN201120235676 U CN 201120235676U CN 202110536 U CN202110536 U CN 202110536U
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Abstract
The utility model provides an SOC (System on a Chip) chip supporting various display screens. The SOC chip comprises a microprocessor controller module and an e-book display screen control module, wherein the e-book display screen control module comprises at least two e-book display screen controller EPDCs used for controlling e-book display screen EPD (Electronic Paper Display)) panels in different modes. The SOC chip provided by the utility model can support simultaneous display and individual display of LCD and EPD, and can support various different e-book display screens in EPD display manner, so as to remarkably lower the system cost of e-book readers because of compatibility.
Description
Technical field
The utility model relates to a kind of E-book reader SOC(system on a chip) (SOC) chip.More particularly, the utility model relates to a kind of SOC chip of supporting multiple display screen.
Background technology
The main flow display screen of e-book (being called " electric paper book " again) is E-Ink (electric ink) screen at present.E-Ink generally is referred to as " electronic ink technologies " (electrophoresis-type Electronic Paper); The Electronic Paper of E-Ink is made up of electric ink and two plate bases; Scribble a kind of electric ink of being made up of countless small transparent grains above the substrate, particle diameter has only half size of people's hairline.As long as the color of intragranular dyestuff of adjustment and micro particle just can make electric ink show color and pattern.After this electric ink is coated onto on paper, cloth or other planar objects,, just can makes hundreds of millions of particle change colors, thereby constantly change pattern and the literal that is manifested according to deviser/user's setting as long as suitably it is shocked by electricity.The E-Ink screen has the advantages that consumption rate is low and refresh rate is fast.
Fig. 1 is the synoptic diagram that the chip internal structure of existing E-book reader is shown.As shown in Figure 1, this chip internal comprises microprocessor (MCU) controller chip 10 and e-book display screen (EPD) controller chip 20.MCU controller chip 10 can comprise RISC (Reduced Instruction Set Computer) central processing unit, system control module and memory control module (not illustrating in the drawings).E-book displaying screen controller chip 20 comprises an e-book displaying screen controller (EPDC) to a kind of e-book display screen technology.
When E-book reader was worked, the EPDC among Fig. 1 was connected to e-book display screen (not shown in Fig. 1), and the e-book display screen is controlled.
The concrete realization technology of existing e-book display screen has nothing in common with each other, and the e-book display screen of each company exploitation is incompatible, and is for example incompatible as the product of main flow E-ink display screen technology supplier's PVI and Sipix company.In the chip of present existing E-book reader, only have a kind of EPDC, therefore existing E-book reader is only supported a kind of e-book display screen, and therefore existing E-book reader does not have compatibility, is unfavorable for controlling the hardware cost of E-book reader.
In addition, present E-book reader only supports the single screen of EPD to show, does not support mutual switching displayed of LCD (LCD) or EPD and LCD double screen to show simultaneously simultaneously.
The utility model content
The purpose of the utility model is to provide a kind of SOC chip and the collocation method thereof that can support multiple display screen.
To achieve these goals; The utility model provides a kind of SOC(system on a chip) SOC chip of supporting multiple display screen; Said SOC chip comprises microprocessor controller module and e-book display screen control module; Wherein, said e-book display screen control module comprises at least two e-book displaying screen controllers of the e-book display screen EPD panel that is used to control different mode.
Said SOC chip also can comprise: system bus, bridge module, e-book display screen bus and video data control module; Wherein, The microprocessor controller module is connected to system bus; Bridge module is connected between system bus and the e-book display screen bus; E-book display screen control module and video data control module are connected to e-book display screen bus, and e-book display screen control module and video data control module communicate via bridge module and system bus and microprocessor controller module through e-book display screen bus.
Said at least two e-book displaying screen controllers integrate and form e-book display screen control module, the shared video data control module of said at least two e-book displaying screen controllers.The video data control module generates corresponding EDP data according to the difference of EDP pattern.Video data control module and e-book display screen control module take e-book display screen bus separately.
Said SOC chip also can comprise: the LCD control module of control LCD; Be connected to system bus; Wherein, Said LCD control module has a LCD passage and the 2nd LCD passage, and the EPD channel multiplexing of a LCD passage and e-book display screen control module to be being connected with EPD panel or LCD panel, and the 2nd LCD passage and IP module reuse are to be connected with the LCD panel.
Said bridge module can comprise that system bus slave unit interface, protocol conversion module and e-book show the control bus host device interface, and wherein, protocol conversion module is connected between system bus slave unit interface and the protocol conversion module.
The microprocessor controller module can comprise CPU, system control module and the memory control module that is connected with system bus respectively.
The beneficial effect of the utility model is:
Through adopting the mode of the shared video data control module of a plurality of EPDC, can when increasing chip performance, reduce hardware cost.
Video data control module and e-book display screen control module take e-book display screen bus separately, thereby promote the bus bandwidth and the performance of e-book display system.
According to the E-book reader SOC chip of the utility model, can support LCD and EPD to show simultaneously and demonstration separately, EPD can support multiple different e-book display screen when showing, has compatibility, thereby significantly reduces the system cost of E-book reader.
Description of drawings
Through the description of carrying out below in conjunction with accompanying drawing, above-mentioned and other purposes and the characteristics of the utility model will become apparent, wherein:
Fig. 1 is the synoptic diagram that the chip internal structure of existing E-book reader is shown;
Fig. 2 is the synoptic diagram according to the inner structure of the SOC chip of the multiple display screen of support of the embodiment of the utility model;
Fig. 3 is the block diagram of the detailed structure of the bridge module among Fig. 2;
Fig. 4 illustrates the process flow diagram that the SOC chip configuration is become the process of different EDP pattern according to the type of e-book display screen;
The operation chart of the SOC chip of the utility model when Fig. 5 is the operation of LCD control module;
Fig. 6 is the process flow diagram that the process of configuration EDP/LCD multiaspect plate mode is shown.
Embodiment
SOC chip according to the multiple display screen of support of the utility model comprises microprocessor controller module and e-book display screen control module; Wherein, said e-book display screen control module comprises at least two e-book displaying screen controller EPDC of the e-book display screen EPD panel that is used to control different mode.
Now, with combining accompanying drawing to describe the embodiment of the utility model in detail.
Fig. 2 is the synoptic diagram according to the inner structure of the SOC chip of the multiple display screen of support of the embodiment of the utility model.
As shown in Figure 2; This SOC chip comprises: CPU 201 (for example, RISC central processing unit), system control module 202, memory control module 203, system bus 205, bridge module 206, e-book display screen bus 207, e-book display screen control module 208 and video data control module 209.In addition, the SOC chip of E-book reader also can comprise the LCD control module 204 that is used to drive the LCD panel.Wherein, CPU 201, system control module 202 and memory control module 203 are formed the microprocessor controller module.
E-book display screen control module 208 is connected to e-book display screen bus 207 with video data control module 209, and e-book display screen control module 208 can communicate via bridge module 206 and system bus 205 and CPU 201, system control module 202 and memory control module 203 through e-book display screen bus 207 with video data control module 209.
E-book display screen control module 208 comprise at least two e-book displaying screen controllers (EPDC) (for example, 801 shown in Fig. 2,802 ... 80n, wherein, n is the positive integer more than or equal to 2), with the EPD panel of control different mode.So the EDP panel of a kind of pattern of each e-book displaying screen controller may command is the EDP panel of the multiple different mode of a plurality of e-book displaying screen controller may command.
A plurality of e-book displaying screen controllers integrate and form e-book display screen control module 208, their shared video data control modules 209.Video data control module 209 generates corresponding EDP data according to the difference of EDP pattern.
As stated, through adopting the mode of the shared video data control module 209 of a plurality of EPDC, can when increasing chip performance, reduce hardware cost.
In addition, video data control module 209 takies e-book display screen bus 207 separately with e-book display screen control module 208, thereby promotes the bus bandwidth and the performance of e-book display system.
Fig. 3 is the block diagram of the detailed structure of the bridge module 206 among Fig. 2.
As shown in Figure 3, bridge module 206 comprises that system bus slave unit interface 301, protocol conversion module 302 and e-book show control bus host device interface 303.Protocol conversion module 302 is connected between system bus slave unit interface 301 and the protocol conversion module 302, is used to realize the conversion between system bus protocol and the e-book display screen bus protocol.
Fig. 4 illustrates the process flow diagram that the SOC chip configuration is become the process of different EDP pattern according to the type of e-book display screen.As shown in Figure 2, owing to have at least two EPDC, so configurable at least two kinds of EDP patterns.
As shown in Figure 4, at step S401, the system of the multibus multi-mode SOC chip of the utility model powers on.
At step S402, the system start-up of the multibus multi-mode SOC chip of the utility model.
Subsequently, the CPU of the multibus multi-mode SOC chip of the utility model judges according to the type of e-book display screen and disposes the EPD pattern, thereby opens corresponding to the EPDC of corresponding EPD pattern, and all the other EPDC close.
Particularly, at step S403, CPU judges whether the SOC chip configuration is become the mode 1.When judging the SOC chip configuration is become the mode 1 the time; At step S404; E-book displaying screen controller 1 (EPDC1) is opened and to be in normal operating conditions, and all the other EPDC (such as, EPDC2, EPDC3 ... EPDCn (n for more than or equal to 2 positive integer) all is in the low-power consumption closed condition.
If the SOC chip configuration is not become the mode 1 in step S403 CPU judgement, then at step S405, CPU judges whether the SOC chip configuration is become the mode 2.When judging the SOC chip configuration is become the mode 2 the time, at step S406, EPDC2 opens and is in normal operating conditions, and all the other EPDC (such as, EPDC1, EPDC3 ... EPDCn (n for greater than 2 positive integer) all is in the low-power consumption closed condition.
In like manner, if the SOC chip configuration is not become the mode 2 in step S405 CPU judgement, then at step S407, CPU judges whether the SOC chip configuration is become the mode 3.When judging the SOC chip configuration is become the mode 3 the time, at step S408, EPDC3 opens and is in normal operating conditions, and all the other EPDC (such as, EPDC1, EPDC2 ... EPDCn (n for more than or equal to 2 positive integer) all is in the low-power consumption closed condition.
That is to say that CPU judges whether the SOC chip configuration m (1≤m≤n) that becomes the mode successively.When judgement became the mode m with the SOC chip configuration, EPDCm opened, and all the other EPDC all are in the low-power consumption closed condition.
At last, judge whether the SOC chip configuration n that becomes the mode at step S409 CPU.When judging that when the SOC chip configuration become the mode n, at step S4010, EPDCn opened and is in normal operating conditions, and all the other EPDC (such as, EPDC1, EPDC2 ... EPDCn-1) all be in the low-power consumption closed condition.
When CPU judged that the SOC chip does not become any pattern with the SOC chip configuration, at step S4011, CPU changed other program segments over to and carries out corresponding program.
The operation chart of the SOC chip of the utility model when Fig. 5 is the operation of LCD control module, Fig. 6 is the process flow diagram that the process of configuration EDP/LCD multiaspect plate mode is shown.
Comprise simultaneously that at the SOC of the utility model chip the SOC chip can be supported multiple e-book display screen and LCDs simultaneously under the situation of LCD control module 504 and e-book display screen control module 508.
As shown in Figure 5, LCD control module 504 has 2 outgoing routes, i.e. LCD passage 1 and LCD passage 2.LCD passage 1 is connected to EPD/LCD Multiplexing module 510 with the EPD passage, thus LCD passage 1 and EPD channel multiplexing, and finally be connected with EPD/LCD panel 512.LCD passage 2 is connected to LCD/IP (Intellectual Property, intellecture property) module reuse module 511, thus LCD passage 2 and IP module reuse, and finally be connected with LCD panel 513.Therefore, can on e-book display screen and LCD, show different content simultaneously respectively through configuration; Also can light e-book display screen and LCD, on e-book display screen and LCD, show different content respectively through the configuration timesharing.
The process of configuration EDP/LCD multiaspect plate mode is described with reference to Fig. 6 below.
As shown in Figure 6, in step S601, system start-up.At step S602, CPU confirms whether the user opens the EPD/LCD pattern.
When step S602 CPU confirms that the EPD/LCD pattern is not opened, carry out other programs at step S603.
When confirming that at step S602 CPU the EPD/LCD pattern is opened, CPU can carry out the configuration of multiaspect plate mode and single sided board pattern.
For example, confirm at step S604 CPU whether the user selects the multiaspect plate mode.When definite user selects the multiaspect plate mode, the LCD control module open and at least two EPDC in a unlatching, and the LCD control module drives the LCD panel and shows (S605), one among the EPDC drives corresponding EPD panel and shows (S607-S6012).
Concretely, when the LCD control module drove the demonstration of LCD panel, the LCD control module was opened LCD passage 2.
When CPU confirmed that the SOC chip is configured to EPD pattern 1 (S607), EPDC1 opened, and all the other EPDC close, and EPDC1 will take the EPDC passage, showed (S608) thereby drive EPD panel 1; When CPU confirmed that the SOC chip is configured to EPD pattern 2 (S609), EPDC2 opened, and all the other EPDC close, and EPDC2 will take the EPDC passage, showed (S6010) thereby EPDC2 drives EPD panel 2; And the like, (during 1≤m≤n), EPDCm opens, and all the other EPDC close, and EPDCm will take the EPDC passage, and m shows thereby EPDCm drives the EPD panel when CPU confirms to be configured to the EPD mode m by the SOC chip; At last, when CPU confirmed that the SOC chip is configured to EPD pattern n (S6011), EPDCn opened, and all the other EPDC close, and EPDCn will take the EPDC passage, and n shows (S6012) thereby EPDCn drives the EPD panel.Through such operation, one of EPD panel can show with the LCD panel simultaneously.
In addition, if confirm that at step S604 the user does not select the multiaspect plate mode, confirm that then the user has selected the single sided board demonstration.For example, confirm at step S606 whether the user selects single EPD pattern.When definite user selects single EPD pattern, execution in step S607-S6012 (, repeating no more) then at this because detailed description has been carried out in the front.
If confirm that at step S606 the user does not select single EPD pattern, confirm that then the user has selected the LCD pattern.Therefore, the LCD control module is opened, and LCD control module driving LCD panel demonstration (S605), and at this moment all EPDC close.The LCD control module can be opened LCD passage 1 or LCD passage 2.Therefore, selecting when switching LCD pattern and EPD pattern, can to realize the switching displayed of LCD panel and EPD panel under the single sided board pattern.
E-book reader SOC chip and collocation method thereof according to the utility model; Said SOC chip adopts multiple bus architecture, inner integrated LCD display controller and at least two e-book display controllers (EPDC), and said collocation method can become different display modes with this SOC chip configuration; Can support LCD and EPD to show simultaneously and demonstration separately; EPD can support multiple different e-book display screen when showing, has compatibility, thereby significantly reduces the system cost of E-book reader.
Although specifically shown and described the utility model with reference to the embodiment of the utility model; But it should be appreciated by those skilled in the art; Under the situation of spirit that does not break away from the utility model that is defined by the claims and scope, can carry out the various changes on form and the details to it.
Claims (7)
1. SOC chip of supporting multiple display screen, said SOC chip comprises microprocessor controller module and e-book display screen control module,
It is characterized in that said e-book display screen control module comprises at least two e-book displaying screen controllers of the e-book display screen EPD panel that is used to control different mode.
2. SOC chip as claimed in claim 1 is characterized in that, the SOC chip also comprises: system bus, bridge module, e-book display screen bus and video data control module,
Wherein, The microprocessor controller module is connected to system bus; Bridge module is connected between system bus and the e-book display screen bus; E-book display screen control module and video data control module are connected to e-book display screen bus, and e-book display screen control module and video data control module communicate via bridge module and system bus and microprocessor controller module through e-book display screen bus.
3. SOC chip as claimed in claim 2 is characterized in that, the SOC chip also comprises: the LCD control module of control LCD, be connected to system bus,
Wherein, Said LCD control module has a LCD passage and the 2nd LCD passage; The EPD channel multiplexing of the one LCD passage and e-book display screen control module to be being connected with EPD panel or LCD panel, and the 2nd LCD passage and IP module reuse are to be connected with the LCD panel.
4. SOC chip as claimed in claim 2; It is characterized in that; Said bridge module comprises that system bus slave unit interface, protocol conversion module and e-book show the control bus host device interface, and wherein, protocol conversion module is connected between system bus slave unit interface and the protocol conversion module.
5. SOC chip as claimed in claim 2 is characterized in that, the microprocessor controller module comprises CPU, system control module and the memory control module that is connected with system bus respectively.
6. SOC chip as claimed in claim 2; It is characterized in that: said at least two e-book displaying screen controllers integrate and form e-book display screen control module; The shared video data control module of said at least two e-book displaying screen controllers, the video data control module generates corresponding EDP data according to the difference of EDP pattern.
7. SOC chip as claimed in claim 2 is characterized in that: video data control module and e-book display screen control module take e-book display screen bus separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202356760U CN202110536U (en) | 2011-06-30 | 2011-06-30 | SOC chip supporting various display screens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202356760U CN202110536U (en) | 2011-06-30 | 2011-06-30 | SOC chip supporting various display screens |
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| CN202110536U true CN202110536U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202356760U Expired - Fee Related CN202110536U (en) | 2011-06-30 | 2011-06-30 | SOC chip supporting various display screens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306090A (en) * | 2011-06-30 | 2012-01-04 | 三星半导体(中国)研究开发有限公司 | SOC (System-on-a-Chip) of supporting various display screens and configuration method thereof |
| WO2020143794A1 (en) * | 2019-01-11 | 2020-07-16 | 京东方科技集团股份有限公司 | Display control system and display apparatus |
-
2011
- 2011-06-30 CN CN2011202356760U patent/CN202110536U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306090A (en) * | 2011-06-30 | 2012-01-04 | 三星半导体(中国)研究开发有限公司 | SOC (System-on-a-Chip) of supporting various display screens and configuration method thereof |
| WO2020143794A1 (en) * | 2019-01-11 | 2020-07-16 | 京东方科技集团股份有限公司 | Display control system and display apparatus |
| US11024254B2 (en) | 2019-01-11 | 2021-06-01 | Boe Technology Group Co., Ltd. | Display control system and display apparatus |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20150630 |
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| EXPY | Termination of patent right or utility model |