CN210223517U - Ink screen reading equipment - Google Patents
Ink screen reading equipment Download PDFInfo
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- CN210223517U CN210223517U CN201921558818.XU CN201921558818U CN210223517U CN 210223517 U CN210223517 U CN 210223517U CN 201921558818 U CN201921558818 U CN 201921558818U CN 210223517 U CN210223517 U CN 210223517U
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Abstract
The utility model relates to an electronic display technical field discloses an ink screen reading equipment. The ink screen reading device comprises a system level chip, an ink screen and a display screen controller; the system level chip is provided with a signal monitoring module, the signal monitoring module is electrically connected with a communication interface of the system level chip and a power management interface of the display screen controller respectively, the signal monitoring module is used for monitoring data transmission between the communication interface and the display screen controller, and when no data transmission exists between the communication interface and the display screen controller, the power management interface of the display screen controller controls the display screen controller to be dormant or closed. The embodiment of the utility model provides a can make display screen controller dormancy or close when showing content and not changing, reduced the equipment consumption.
Description
Technical Field
The utility model relates to an electronic display technical field, concretely relates to ink screen reading equipment.
Background
The ink screen device is also called an ink screen reading device, and refers to an electronic device using an electronic ink screen (E-ink or electronic paper Display/EPD), and some ink screen devices have a handwriting function, and are also called a handwriting reading device or a handwriting reader. The electronic ink screen is a screen which does not emit light and realizes the display effect by depending on external reflection, and the display effect of the electronic ink screen is very similar to that of a paper material, so that the electronic ink screen can be compared with the experience of reading of the paper material.
The ink screen is composed of a plurality of microcapsules, each microcapsule containing a plurality of black particles and a plurality of white particles, each of which is oppositely charged. When black content needs to be displayed on the screen, the black particles are driven by the voltage to move upwards to the top of the screen (namely, to move from the bottom to the screen), and when white content is displayed, the white particles are driven by the voltage to move upwards to the top of the screen (namely, to move from the bottom to the screen).
The ink screen belongs to bistable Display screen, only need to refresh the screen when the Display content changes, can greatly reduced equipment power consumption relative to Liquid Crystal Display (LCD) screen. Although the ink screen in the prior art does not need to drive the screen to perform the refresh operation when the display content is not changed, other devices of the device are still in a working state, and certain power consumption exists.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made to provide an ink screen reading apparatus that overcomes or at least partially solves the above problems.
The utility model provides an ink screen reading device, which comprises a system level chip, an ink screen and a display screen controller; the system-level chip is provided with a communication interface, the system-level chip is electrically connected with the display screen controller through the communication interface, the system-level chip is used for sending image data to be displayed to the display screen controller through the communication interface, the display screen controller is electrically connected with the ink screen, and the display screen controller is used for converting the image data into a driving waveform and driving the ink screen to display the content of the image data according to the driving waveform; the ink screen reading equipment further comprises a signal monitoring module, wherein the signal monitoring module is respectively electrically connected with the communication interface of the system level chip and the power management interface of the display screen controller, the signal monitoring module is used for monitoring data transmission between the communication interface and the display screen controller, and when no data transmission exists between the communication interface and the display screen controller, the power management interface of the display screen controller controls the display screen controller to be dormant or closed.
In one embodiment, the signal monitoring module is further electrically connected to the power management interface of the system-on-chip, and the signal monitoring module is configured to control the system-on-chip to sleep through the power management interface of the system-on-chip when there is no data transmission between the communication interface and the display screen controller.
In one embodiment, the power management interface of the display screen controller is electrically connected to the power management integrated circuit of the display screen controller, and the power management integrated circuit of the display screen controller is used for controlling the display screen controller to sleep.
In one embodiment, the power management interface of the system-on-chip is electrically connected to the power management unit of the system-on-chip, and the power management unit of the system-on-chip is used for controlling the system-on-chip to sleep.
In one embodiment, the signal monitoring module is further electrically connected to a timer of the system-on-chip, the timer of the system-on-chip is electrically connected to a real-time clock of the system-on-chip, and the timer of the system-on-chip is configured to control the real-time clock to be turned off when the signal monitoring module monitors that no data transmission between the communication interface and the display screen controller exceeds a preset time threshold.
In one embodiment, the signal monitoring module is a digital circuit, and the digital circuit is used for outputting a high level when receiving a low level output by the communication interface of the system-on-chip.
In one embodiment, the digital circuit is one of a not gate, a nand gate, an or gate, an xor gate, and a schmitt trigger.
In one embodiment, the signal monitoring module is a signal detection chip.
In one embodiment, the signal detection chip is a current detection chip or a voltage detection chip.
The utility model provides an among the ink screen reading equipment, through set up signal monitoring module on system level chip, can monitor the data transmission between system level chip and the display screen controller, do not have data transmission between system level chip and the display screen controller, when also showing that content does not change, control display screen controller dormancy or close to reduce the consumption.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of an ink screen reading device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram illustrating an ink screen reading device provided by the present invention, which uses a not gate as a signal monitoring module;
fig. 3 is a schematic structural diagram illustrating an ink screen reading device provided by the present invention, which uses a nand gate as a signal monitoring module;
fig. 4 is a schematic structural diagram of an ink screen reading device according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of an ink screen reading device according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of an ink screen reading device according to still another embodiment of the present invention;
fig. 7 is a schematic structural diagram of an ink screen reading device according to still another embodiment of the present invention;
fig. 8 is a schematic structural diagram of an ink screen reading device according to another embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Fig. 1 shows a schematic structural diagram of an ink screen reading device according to an embodiment of the present invention, as shown in fig. 1, an ink screen reading device 100 includes a System On Chip (SOC) 10, an ink screen 20, and a display screen controller 30. The system-on-chip 10 integrates a Central Processing Unit (CPU) and other main control devices, and is a main chip of the reader. The display screen controller 30 is an Electronic Paper Display Controller (EPDC) or a Timer Control Register (TCON), which is also called a logic board, a screen driving board, or a central Control board. The system on chip 10 outputs a Look-Up-Table (LUT) to the display controller 30, and the display controller 30 is configured to obtain a driving waveform (waveform) according to the LUT and drive the ink particles on the ink screen 20 to move according to the driving waveform, so as to implement imaging. The system-on-chip 10 is provided with a communication interface 11, the system-on-chip 10 is electrically connected with the display screen controller 30 through the communication interface 11, and the system-on-chip 10 is used for sending image data to be displayed to the display screen controller 30 through the communication interface 11; the display controller 30 is electrically connected to the ink panel 20, and the display controller 30 is configured to convert the image data into a driving waveform and drive the ink panel 20 to display the content of the image data according to the driving waveform.
The ink screen reading apparatus 100 further includes a signal monitoring module 40, the signal monitoring module 40 is electrically connected to the communication interface 11 of the system-on-chip 10 and the power management interface 31 of the display screen controller 30, the signal monitoring module 40 is configured to monitor data transmission between the communication interface 11 and the display screen controller 30, and when there is no data transmission between the communication interface 11 and the display screen controller 30, the power management interface 31 of the display screen controller 30 controls the display screen controller 30 to sleep or close. Therefore, under the condition that no new content of screen refreshes, the embodiment of the utility model provides a make display screen controller 30 dormancy or close, when waiting to receive the operation of awakening up, awaken up display screen controller 30 again and get into operating condition.
The signal monitoring module 40 may be implemented by a digital circuit or a signal detection chip. When the signal monitoring module 40 employs a digital circuit, it may be one of a not gate, a nand gate, an or gate, an xor gate, and a schmitt trigger. When the signal monitoring module 40 employs a signal detection chip, it may be a current detection chip or a voltage detection chip.
As shown in fig. 2, the not gate 41 is used as the signal monitoring module 40, an input end of the not gate 41 is electrically connected to the communication interface 11 of the system-on-chip 10, and an output end of the not gate 41 is electrically connected to the power management interface 31 of the display controller 30. When the soc 10 outputs image data to the display controller 30, the input terminal of the not gate 41 is at a high level, and the output terminal thereof is at a low level, so that a Power Management Integrated Circuit (PMIC) 32 of the display controller 30 is not triggered to control the display controller 30 to sleep or turn off. When the system-on-chip 10 does not output the image data to the display controller 30, the input terminal of the not gate 41 is at a low level, and the output terminal is at a high level, so as to trigger the power management integrated circuit of the display controller 30 to control the display controller 30 to sleep or turn off.
As shown in fig. 3, the nand gate 42 is used as the signal monitoring module 40, a first input end of the nand gate 42 is floating, which is equivalent to being connected to a high level, a second input end of the nand gate 42 is electrically connected to the communication interface 11 of the system-on-chip 10, and an output end of the nand gate 42 is electrically connected to the power management interface 31 of the display controller 30. Of course, the first input of the nand gate 42 may also be connected to the power supply. When the system-on-chip 10 outputs the image data to the display controller 30, both input ends of the nand gate 42 are at a high level, and at this time, the output end is at a low level, which does not trigger the power management integrated circuit of the display controller 30 to control the display controller 30 to sleep or turn off. When the system-on-chip 10 does not output the image data to the display controller 30, the first input terminal of the nand gate 42 is at a high level, the second input terminal is at a low level, and the output terminal is at a high level at this time, which triggers the power management integrated circuit of the display controller 30 to control the display controller 30 to sleep or close.
When this signal monitoring module 40 adopts other digital circuit or signal detection chip, specific theory of operation realizes based on actual digital circuit and signal detection chip, the embodiment of the utility model provides an no longer example detail one by one.
As shown in fig. 4, in some embodiments, the power management interface 31 of the display controller 30 is electrically connected to the power management integrated circuit 32 of the display controller 30, and the power management integrated circuit 32 of the display controller 30 is used for controlling the display controller 30 to sleep or turn off. The technology that electronic equipment dormancy or closed is prior art, the embodiment of the utility model discloses no longer detail concrete dormancy process.
The embodiment of the utility model provides a through set up signal monitoring module on system level chip, can monitor the data transmission between system level chip and the display screen controller, do not have data transmission between system level chip and display screen controller, also show when content does not change, control display screen controller dormancy or close to reduce the consumption.
Fig. 5 shows a schematic structural diagram of an ink screen reading device according to another embodiment of the present invention, as shown in fig. 5, an ink screen reading device 100 includes a system-on-chip 10, an ink screen 20 and a display screen controller 30.
The system-on-chip 10 is provided with a communication interface 11, the system-on-chip 10 is electrically connected with the display screen controller 30 through the communication interface 11, and the system-on-chip 10 is used for sending image data to be displayed to the display screen controller 30 through the communication interface 11; the display controller 30 is electrically connected to the ink panel 20, and the display controller 30 is configured to convert the image data into a driving waveform and drive the ink panel 20 to display the content of the image data according to the driving waveform.
The system-on-chip 10 is further provided with a signal monitoring module 40, the signal monitoring module 40 is electrically connected to the communication interface 11 of the system-on-chip 10 and the power management interface 31 of the display screen controller 30, the signal monitoring module 40 is configured to monitor data transmission between the communication interface 11 and the display screen controller 30, and when there is no data transmission between the communication interface 11 and the display screen controller 30, the power management interface 31 of the display screen controller 30 controls the display screen controller 30 to sleep or close.
Different from the above embodiments, in the present embodiment, the signal monitoring module 40 is further electrically connected to the power management interface 12 of the system-on-chip 11, and the signal monitoring module 40 is configured to control the system-on-chip 10 to sleep through the power management interface 12 of the system-on-chip 10 when there is no data transmission between the communication interface 11 and the display screen controller 30. Therefore, under the condition that no new content refreshes at the screen, the embodiment of the utility model provides a make display screen controller 30 dormancy or close to make system level chip 10 dormancy, when waiting to receive the operation of awakening up, awaken up display screen controller 30 and system level chip 10 again and get into operating condition.
As shown in fig. 6, the power management interface 31 of the display controller 30 is electrically connected to the power management integrated circuit 32 of the display controller 30, and the power management integrated circuit 32 of the display controller 30 is used for controlling the display controller 30 to sleep. The power management interface 12 of the system-on-chip 10 is further electrically connected to the power management unit 13 of the system-on-chip 10, and the power management unit 13 of the system-on-chip 10 is used for controlling the system-on-chip 10 to sleep. The technology of electronic equipment dormancy is prior art, the embodiment of the utility model discloses no longer detail concrete dormancy process.
The sleep mode of the system-on-chip 10 may include two types: deep sleep or shallow sleep. In the deep sleep state, the real-time clock of the system-on-chip 10 is turned off, the CPU core and the peripheral circuits are all stopped, and a HOME page (HOME) key or a POWER supply (POWER) key needs to be pressed to trigger the wake-up operation. In a shallow sleep state, a part of real-time clock signals are reserved by a CPU, a CPU core and a part of peripheral circuits stop running, a part of peripheral circuits keep running, the reserved real-time clock monitors and wakes up elements such as an electromagnetic film, a capacitive screen and a Microphone (MIC), and a user can trigger wake-up operation through keys, an electromagnetic pen, finger touch, voice trigger and the like. After the wake-up operation is triggered, the CPU controls the display controller 30 to enter a working mode, and the display controller 30 further controls the power management integrated circuit 32 to enter the working mode, so that the display controller 30 can normally control the ink screen 20 to display images.
As shown in fig. 7, the signal monitoring module 40 is further electrically connected to the timer 14 of the system-on-chip 10, the timer 14 of the system-on-chip 10 is electrically connected to the real-time clock 15 of the system-on-chip 10, and the timer 14 of the system-on-chip 10 is configured to control the real-time clock 15 to be turned off when the signal monitoring module 40 monitors that no data transmission between the communication interface 11 and the display screen controller 30 exceeds a preset time threshold, so that the system-on-chip 10 enters the deep sleep mode.
The embodiment of the utility model provides a through set up signal monitoring module on system level chip, can monitor the data transmission between system level chip and the display screen controller, do not have data transmission between system level chip and display screen controller, also show when content does not change, control display screen controller dormancy or close to control system level chip dormancy, thereby further reduce the consumption.
The utility model discloses in an application scenario, when ink screen reading equipment broadcast audio file, for example start listening to the book function, perhaps play music, broadcast audio reading etc. in order to enable display screen controller and system level chip entering sleep mode, and can normally broadcast audio file again, need make the ink screen no longer show such as audio playback progress menu, perhaps no longer read the characters along with broadcast software progress dynamic page turning mark, and only show the screen protection picture. Therefore, fig. 8 shows a schematic structural diagram of an ink screen reading device according to another embodiment of the present invention, as shown in fig. 8, an ink screen reading device 100 includes a system-on-chip 10, an ink screen 20, a display screen controller 30 and an audio playing module 50.
The system-on-chip 10 is provided with a communication interface 11, the system-on-chip 10 is electrically connected with the display screen controller 30 through the communication interface 11, and the system-on-chip 10 is used for sending image data to be displayed to the display screen controller 30 through the communication interface 11; the display controller 30 is electrically connected to the ink panel 20, and the display controller 30 is configured to convert the image data into a driving waveform and drive the ink panel 20 to display the content of the image data according to the driving waveform.
The system-on-chip 10 is further provided with a signal monitoring module 40, the signal monitoring module 40 is electrically connected to the communication interface 11 of the system-on-chip 10 and the power management interface 31 of the display screen controller 30, the signal monitoring module 40 is configured to monitor data transmission between the communication interface 11 and the display screen controller 30, and when there is no data transmission between the communication interface 11 and the display screen controller 30, the power management interface 31 of the display screen controller 30 controls the display screen controller 30 to sleep or close.
The system on chip 10 is electrically connected to the audio playing module 50, and the system on chip 10 is used for controlling the audio playing module 50 to play audio. For example, the system on chip 10 monitors an audio playing command, which is generally sent by a user through a key, an electromagnetic pen, a finger touch, a voice, and the like. After receiving the playing instruction, the system on chip 10 controls the audio playing module 50 to play music or audio books, etc. In an optional embodiment, after the system on chip 10 receives the audio playing instruction, before controlling the display screen controller 30 (or the display screen controller 30 and the system on chip 10) to enter the sleep mode, the system on chip 10 needs to transmit the screen saver picture to the display screen controller 30, and after the display screen controller 30 controls the ink screen 20 to refresh the display screen saver picture, the power management interface 31 of the display screen controller 30 controls the display screen controller 30 to enter the sleep mode, so as to display the screen saver picture during the playing process.
In the above scheme, because an audio playing operation is to be executed, the CPU in the soc 10 cannot completely enter the sleep mode, and for a multi-core CPU (e.g. 4 cores), a CPU Dynamic frequency modulation mechanism (DVFS), a CPU speed regulator (governor), a CPU multi-core hot plug (hot) and other mechanisms may be used to perform partial sleep control on the CPU at this time, according to the resource occupation situation of the current thread, a part of cores of the CPU are kept in a working state, and the rest of cores enter the sleep mode, and when the resource occupation situation changes, the number of cores in the sleep/working mode is dynamically adjusted.
Those skilled in the art will appreciate that although some embodiments herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (10)
1. An ink screen reading device comprises a system level chip, an ink screen and a display screen controller; the system-on-chip is provided with a communication interface, the system-on-chip is electrically connected with the display screen controller through the communication interface, and the display screen controller is electrically connected with the ink screen; the ink screen reading equipment further comprises a signal monitoring module, wherein the signal monitoring module is respectively electrically connected with the communication interface of the system level chip and the power management interface of the display screen controller, the signal monitoring module is used for monitoring data transmission between the communication interface and the display screen controller, and when no data transmission exists between the communication interface and the display screen controller, the power management interface of the display screen controller controls the display screen controller to be dormant or closed.
2. The ink screen reading device of claim 1, wherein the signal monitoring module is further electrically connected to a power management interface of the system-on-chip, and the signal monitoring module is further configured to control the system-on-chip to sleep through the power management interface of the system-on-chip when there is no data transmission between the communication interface and the display screen controller.
3. The ink screen reading device of claim 1, wherein the power management interface of the display screen controller is electrically connected to the power management integrated circuit of the display screen controller, and the power management integrated circuit of the display screen controller is configured to control the display screen controller to sleep.
4. The ink screen reading device of claim 2, wherein the power management interface of the system-on-chip is electrically connected to the power management unit of the system-on-chip, and the power management unit of the system-on-chip is configured to control the system-on-chip to sleep.
5. The ink screen reading device according to claim 1, wherein the signal monitoring module is further electrically connected to a timer of the system-on-chip, the timer of the system-on-chip is electrically connected to the real-time clock of the system-on-chip, and the timer of the system-on-chip is configured to control the real-time clock to be turned off when the signal monitoring module monitors that no data transmission between the communication interface and the display screen controller exceeds a preset time threshold.
6. The ink screen reading device of claim 1, wherein the signal monitoring module is a digital circuit configured to output a high level when receiving a low level output by the communication interface of the system-on-chip.
7. The ink screen reading device of claim 6, wherein the digital circuit is one of a not gate, a nand gate, an or gate, an xor gate, and a schmitt trigger.
8. The ink screen reading device of claim 1, wherein the signal monitoring module is a signal detection chip.
9. The ink screen reading device of claim 8, wherein the signal detection chip is a current detection chip or a voltage detection chip.
10. The ink screen reading device according to claim 1, further comprising an audio playing module electrically connected to the system-on-chip, wherein the system-on-chip transmits the screen saver picture to the display screen controller after receiving an audio playing command, and a power management interface of the display screen controller controls the display screen controller to sleep or shut down.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921558818.XU CN210223517U (en) | 2019-09-18 | 2019-09-18 | Ink screen reading equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921558818.XU CN210223517U (en) | 2019-09-18 | 2019-09-18 | Ink screen reading equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113345370A (en) * | 2021-06-11 | 2021-09-03 | 杭州海康威视数字技术股份有限公司 | LED display device and low-power-consumption control method and control device thereof |
| CN114243843A (en) * | 2021-12-21 | 2022-03-25 | 凯睿隆誉(成都)科技有限公司 | Current control circuit and method of electric device and electric device |
-
2019
- 2019-09-18 CN CN201921558818.XU patent/CN210223517U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113345370A (en) * | 2021-06-11 | 2021-09-03 | 杭州海康威视数字技术股份有限公司 | LED display device and low-power-consumption control method and control device thereof |
| CN113345370B (en) * | 2021-06-11 | 2023-09-01 | 杭州海康威视数字技术股份有限公司 | LED display device, low-power consumption control method thereof and control device thereof |
| CN114243843A (en) * | 2021-12-21 | 2022-03-25 | 凯睿隆誉(成都)科技有限公司 | Current control circuit and method of electric device and electric device |
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