CN103632630B - The update method of display and display frame thereof - Google Patents
The update method of display and display frame thereof Download PDFInfo
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- CN103632630B CN103632630B CN201210305224.4A CN201210305224A CN103632630B CN 103632630 B CN103632630 B CN 103632630B CN 201210305224 A CN201210305224 A CN 201210305224A CN 103632630 B CN103632630 B CN 103632630B
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Abstract
The present invention discloses a kind of display and display frame update method thereof.Described display comprises: a control module, at least has normal and standby two kinds of operator schemes; One display unit, comprises one drive circuit and a display panel, and described driving circuit at least has normal and standby two kinds of operator schemes; And an operation interface, connect described control module and described driving circuit, in order to provide image frame data-signal from described control module one-way transmission to described driving circuit, and the two-way transmission of frame updating control signal between described control module and described driving circuit; Wherein, described control module transmits the image frame of a data crossfire to described driving circuit via described operation interface, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire.
Description
Technical field
The invention relates to the image display technology of low power consumption, the display of particularly a kind of low power consumption and display frame update method thereof.
Background technology
Display has been widely used in various electronic product, such as, and the computer equipment of tool display screen, mobile phone or digital frame etc., and with the electricity-saving operation mode that screen dormancy is technical foundation, become one of development priority of current display.Often at present scan frequency to reach this object with what reduce picture display, such as, gapless dynamically updates rate and switches (SeamlessDynamicRefreshRateSwitching, be called for short SDRRS), and its attainable power saving effect is limited.In addition, also someone proposes config memory on display panel, read for during renewal with stored picture image data, then the circuit system of described display and display circuit can not picture scannings and directly enter battery saving mode constantly, therefore can reduce the consumption of electric energy, but subsidiary shortcoming is the extra cost that storer makes.
Therefore, be necessary to develop new display frame renewal technology, to improve the electricity saving function of display further.
Summary of the invention
For reaching this object, according to an aspect of the present invention, the first embodiment provides a kind of display, and it comprises: a control module, at least has normal and standby two kinds of operator schemes; One display unit, comprises one drive circuit and a display panel, and described driving circuit at least has normal and standby two kinds of operator schemes; And an operation interface, connect described control module and described driving circuit, in order to provide image frame data-signal from described control module one-way transmission to described driving circuit, and the two-way transmission of frame updating control signal between described control module and described driving circuit; Wherein, described control module transmits the image frame of a data crossfire to described driving circuit via described operation interface, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire.
According to a further aspect in the invention, second embodiment provides a kind of update method of display frame, it comprises: (A) provides a display, it comprises the display unit that a control module and has driving circuit and display panel, described control module at least has normal and standby two kinds of operator schemes, described driving circuit at least has normal and standby two kinds of operator schemes, and described control module and described driving circuit operate in its normal mode respectively; (B) described control module transmits the image frame of a data crossfire to described driving circuit, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire; Wherein, when having transmitted described data crossfire, described control module has entered its standby mode; When receiving described data crossfire, described driving circuit drives described display unit according to the last image frame of described data crossfire, and enters its standby mode; (C) described driving circuit enters its normal mode, and asks described control module to upgrade picture shown by described display panel; And (D) described control module enters its normal mode, and transmit the described last image frame of described data crossfire to described driving circuit, and enter its standby mode; And described driving circuit drives described display panel according to described last image frame, and enter its standby mode.
According to a further aspect in the invention, 3rd embodiment provides a kind of update method of display frame, it comprises: (A) provides a display, it comprises the display unit that a control module and has driving circuit and display panel, described control module has normal and standby two kinds of operator schemes, described driving circuit has normal and standby two kinds of operator schemes, and described control module and described driving circuit operate in its normal mode respectively; (B) described control module transmits the image frame of a data crossfire to described driving circuit, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire; Wherein, described control module or described driving circuit are detected described data crossfire and are compared the adjacent image frame of priority of specific quantity, when the adjacent image frame of priority of described specific quantity meets specified conditions, if described control module and described driving circuit can obtain friendship and hold confirmation, then described control module enters its standby mode, and described driving circuit drives described display panel according to received last image frame, and enter its standby mode; (C) described driving circuit enters its normal mode, and asks described control module to upgrade picture shown by described display panel; And (D) described control module enters its normal mode, and transmit the last image frame sent out of described data crossfire to described driving circuit, and enter its standby mode; And described driving circuit drives described display panel according to described last image frame, and enter its standby mode.
Accompanying drawing explanation
Fig. 1 is the block schematic diagram of display according to a first embodiment of the present invention.
Fig. 2 is the schematic flow sheet of display frame update method according to a second embodiment of the present invention.
Fig. 3 is the schematic flow sheet of display frame update method according to a third embodiment of the present invention.
Description of reference numerals: 100-display; 110-control module; 120-display unit; 121-driving circuit; 122-display panel; 130-operation interface; 200/300-display frame update method; 210/220/230/240-step; 310/320/330/340-step.
Embodiment
For ease of to the further cognitive and understanding of feature of the present invention, object and function, hereby coordinate graphic detailed description embodiments of the invention as rear.In all instructionss and diagram, will identical element number be adopted to specify same or similar element.
In embodiments of the invention illustrate, an element is described another element " above/on " or " below/under ", refer to directly or indirectly the upper of described element or under situation, and comprise other elements be arranged at therebetween.In order to the facility that illustrates and clear and definite, the thickness of each rete or size in graphic be exaggerate or omit or the mode of outline represents, and the size of each inscape are not entirely the size of its reality.
Fig. 1 is the block schematic diagram of display 100 according to a first embodiment of the present invention.Described display 100 comprises control module 110, display unit 120 and an operation interface 130; Wherein, described control module 110 can operate in normal or standby mode; Described display unit 120 comprises one drive circuit 121 and a display panel 122, and described driving circuit 121 can operate in normal or standby mode; And described operation interface 130 connects described control module 110 and described driving circuit 121, in order to provide image frame data-signal from the one-way transmission of described control module 110 to described driving circuit 121, and the two-way transmission of frame updating control signal between described control module 110 and described driving circuit 121.In addition, because the present invention is specially adapted to have the good embodiment keeping the display of picture ability, such as, thin film transistor (TFT) (TFT) liquid crystal display using indium oxide gallium zinc (IGZO) as electrode material or the organic light emitting diode of active matrix (AMOLED) display.Encyclopaedize to each component units of the present embodiment below.
In this manual, standby (standby) pattern refers to the low power consumption operation pattern for normal mode, is in fact also equal to so-called dormancy (sleep) or battery saving mode.In addition, with regard to the technical terms in practice, described control module 110 can be described as the system source (source) providing image frame data-signal in described display 100, and described display unit 120 can be described as the receiving end (sink) accepting image frame data-signal in described display 100.In existing known techniques, described system source provides image frame data-signal usually on one's own initiative, and described receiving end just accepts the image frame data-signal that described system source provides passively; Such as, but the present embodiment sends control signal to the active function of described system source by making described receiving end have, and, frame updating request signal, to realize the display frame renewal technology of high electricity saving function.
In the present embodiment, described control module 110 and described display unit 120 are in the normal mode, described control module 110 can transmit the image frame (imageframes) of a data crossfire (datastream) to described driving circuit 121 via described operation interface 130, make described driving circuit 121 can drive described display panel 122, to upgrade the picture shown by described display panel 122 according to the precedence of the image frame of described data crossfire.On the other hand, after described control module 110 has transmitted described data crossfire, its standby mode will be entered immediately, and described driving circuit 121 is receiving described data crossfire and is driving described display panel 122 according to the last image frame of described data crossfire, to make after described last image frame shows its picture by described display panel 122, also to enter its standby mode immediately.
When receiving end needs to upgrade display frame, described driving circuit 121 can transmit a frame updating control signal to described control module 110, to ask to upgrade the picture shown by described display panel 122 via described operation interface 130.Now, described control module 110 will be waken up and enter its normal mode, and send the described last image frame of described data crossfire to described driving circuit 121, once more enter its standby mode immediately afterwards; Described driving circuit 121 then drives described display panel 122 according to described last image frame, to make described display panel 122 show its picture with described last image frame, also again enters its standby mode immediately.Therefore, long operate in standby mode can be maintained, therefore maximum power saving efficiency can be reached.
About the update request of driving circuit 121 described above for picture shown by described display panel 122, two kinds of modes that the present embodiment can be following are realized.First kind of way is that setting one characteristic frequency upgrades picture with regular request, then described driving circuit 121 described characteristic frequency and repeating can transmit described frame updating control signal to described control module 110, such as, and the repetition frequency of 1Hz or higher.In addition, the second way is determine whether according to the measurement of the characteristic parameter value of described display panel 122 request that upgrades display frame, described driving circuit 121 then can be made to detect certain special parameter of described display panel 122 further, such as, picture grey decision-making shown by described display panel 122, and when described special parameter meets specified conditions, transmit the control signal of described frame updating request to described control module 110; Such as, described specified conditions can be described picture grey decision-making when being shown in the initial picture grey decision-making on described display panel 122 by described display panel 122 according to described last image frame and reducing 20% or more, ask described control module 110 to provide new or original image frame data-signal to described display unit 120; But the present invention is not limited this.
In addition, if when system source or receiving end find or confirm that institute can not change or change very little for the image frame shown, then when the image frame of described data crossfire is not yet completely transmitted, receives or shows, described control module 110 and described driving circuit 121 all can propose to enter the request of standby mode and confirmation is held in the friendship obtained each other, and enters its standby mode respectively.Thus, described control module 110 or described driving circuit 121 can be detected described data crossfire and compare the adjacent image frame of priority of specific quantity, such as, and 5, the front and back adjacent image frame of priority, when the adjacent image frame of priority of described specific quantity meets specified conditions, described control module 110 or described driving circuit 121 can propose the request entering standby mode, if described control module 110 holds confirmation with the friendship that can obtain each other between the two of described driving circuit 121, then described control module 110 can enter its standby mode, and described driving circuit 121 drives described display panel 122 according to received last image frame, its picture is shown with described last image frame to make described display panel 122, its standby mode can be entered immediately afterwards.In the present embodiment, described specified conditions can be set as that the GTG variation value of the adjacent image frame of the priority of described specific quantity is less than 20%, but the present invention is not limited this.
In the present embodiment, described driving circuit 121 can transmit the control signal of a frame updating request to described control module 110 via described operation interface 130, to ask to upgrade the picture shown by described display panel 122, then described control module 110 enters its normal mode and transmits the last image frame sent out of described data crossfire to described driving circuit 121, enters its standby mode immediately afterwards; And described driving circuit 121 drives described display panel 122 according to described last image frame, to make described display panel show its picture with described last image frame, its standby mode can be entered immediately afterwards.In addition, the situation that the image frame that the present embodiment is also applicable to aforementioned described data crossfire is completely transmitted, receives or shows, this can as previously mentioned, not repeat them here.
By the first above-mentioned embodiment, the technology of the display frame update method being used in display can be derived, will be described in detail in following.Fig. 2 is the schematic flow sheet of display frame update method 200 according to a second embodiment of the present invention, and below in detail each step will be described in detail.
In step 210, can provide a display, it comprises the display unit that a control module and has driving circuit and display panel.Wherein, described control module can have normal and standby two kinds of operator schemes, and described driving circuit also can have normal and standby two kinds of operator schemes.Now, described display is in duty normally; In other words, described control module (system source) and described driving circuit (receiving end) operate in its normal mode respectively.
Step 220 then, described control module transmits the image frame of a data crossfire to described driving circuit, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire; Wherein, described control module or described driving circuit are detected described data crossfire and are compared the adjacent image frame of priority of specific quantity, when the adjacent image frame of priority of described specific quantity meets specified conditions, if described control module and described driving circuit can obtain friendship and hold confirmation, then described control module enters its standby mode, and described driving circuit drives described display panel according to received last image frame, to make described display panel show its picture with described last image frame, its standby mode can be entered immediately afterwards.
When receiving end needs to upgrade display frame, step 230 then item makes described driving circuit enter its normal mode, and asks described control module to upgrade picture shown by described display panel.Such as, described driving circuit can transmit the control signal of a frame updating request to described control module, to ask to upgrade the picture shown by described display panel.About the update request of driving circuit described above for picture shown by described display panel, two kinds of modes that the present embodiment can be following are realized.First kind of way is that setting one characteristic frequency upgrades picture with regular request, then described driving circuit described characteristic frequency and repeating can transmit described frame updating control signal to described control module, such as, and the repetition frequency of 1Hz or higher.In addition, the second way is determine whether according to the measurement of the characteristic parameter value of described display panel the request that upgrades display frame, described driving circuit then can be made to detect certain special parameter of described display panel further, such as, picture grey decision-making shown by described display panel, and when described special parameter meets specified conditions, transmit the control signal of described frame updating request to described control module; Such as, described specified conditions can be described picture grey decision-making when being shown in the initial picture grey decision-making on described display panel by described display panel according to described last image frame and reducing 20% or more, ask described control module to provide new or original image frame data-signal to described display unit, but the present invention is not limited this.
Now, described control module can be waken up, then step 240 is then: described control module enters its normal mode, and the last image frame transmitting described data crossfire is to described driving circuit, and enter its standby mode; And described driving circuit drives described display panel according to described last image frame, to make described display panel show its picture with described last image frame, also again enter its standby mode immediately.Therefore, long operate in standby mode can be maintained, therefore maximum power saving efficiency can be reached.
In addition, if when system source or receiving end find or confirm that institute can not change or change very little for the image frame shown, then when the image frame of described data crossfire is not yet completely transmitted, receives or shows, described control module and described driving circuit all can propose to enter the request of standby mode and confirmation is held in the friendship obtained each other, and enters its standby mode respectively.Thus, Fig. 3 is the schematic flow sheet of display frame update method 300 according to a third embodiment of the present invention, and below in detail each step will be described in detail.
In the step 310, can provide a display, it comprises the display unit that a control module and has driving circuit and display panel.Wherein, described control module can have normal and standby two kinds of operator schemes, and described driving circuit also can have normal and standby two kinds of operator schemes.Now, described display is in duty normally; In other words, described control module (system source) and described driving circuit (receiving end) operate in its normal mode respectively.
Step 320 then, described control module transmits the image frame of a data crossfire to described driving circuit, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire; Wherein, described control module or described driving circuit can be detected described data crossfire and compare the adjacent image frame of priority of specific quantity, when the adjacent image frame of priority of described specific quantity meets specified conditions, if described control module and described driving circuit can obtain friendship and hold confirmation, then described control module enters its standby mode, and described driving circuit drives described display panel according to received last image frame, to make described display panel show its picture with described last image frame, enter its standby mode immediately.
In the present embodiment, described control module or described driving circuit can be detected described data crossfire and compare the adjacent image frame of priority of specific quantity, such as, and 5, the front and back adjacent image frame of priority; When the adjacent image frame of priority of described specific quantity meets specified conditions, described control module or described driving circuit can propose the request entering standby mode, if confirmation held by described control module and described the driving circuit between the two friendship that can obtain each other, then described control module can enter its standby mode, and described driving circuit drives described display panel according to received last image frame, to make described display panel show its picture with described last image frame, its standby mode can be entered immediately afterwards.In the present embodiment, described specified conditions can be set as that the GTG variation value of the adjacent image frame of the priority of described specific quantity is less than 20%, but the present invention is not limited this.
When receiving end needs to upgrade display frame, step 330 then item makes described driving circuit enter its normal mode, and asks described control module to upgrade picture shown by described display panel.Then when described control module is waken up, then enter step 340, described control module enters its normal mode, and transmits the last image frame sent out of described data crossfire to described driving circuit, and enters its standby mode; And described driving circuit drives described display panel according to described last image frame, to make described display panel show its picture with described last image frame, also again enter its standby mode immediately.In addition, the situation that the image frame that the present embodiment is also applicable to aforementioned described data crossfire is completely transmitted, receives or shows, this as described in the second embodiment, does not repeat them here.
As described above, be only preferred embodiment of the present invention, when can not with limit the scope of the invention.Namely the equalization generally done according to the present patent application the scope of the claims changes and modifies, and will not lose main idea place of the present invention, also not depart from the spirit and scope of the present invention, former capital should be considered as further status of implementation of the present invention.
Claims (15)
1. a display, is characterized in that, it comprises:
One control module, at least has normal and standby two kinds of operator schemes;
One display unit, comprises one drive circuit and a display panel, and described driving circuit at least has normal and standby two kinds of operator schemes; And
One operation interface, connect described control module and described driving circuit, in order to provide image frame data-signal from described control module one-way transmission to described driving circuit, and the two-way transmission of frame updating control signal between described control module and described driving circuit;
Wherein, described control module transmits the image frame of a data crossfire to described driving circuit via described operation interface, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire; Described control module enters its standby mode after having transmitted described data crossfire immediately, and described driving circuit is receiving described data crossfire and driving described display panel according to the last image frame of described data crossfire, and enters its standby mode; Described driving circuit transmits a frame updating control signal to described control module via described operation interface, to ask to upgrade the picture shown by described display panel, then described control module enters its normal mode and transmits the described last image frame of described data crossfire to described driving circuit, enters its standby mode immediately afterwards; And described driving circuit drives described display panel according to described last image frame, and enter its standby mode.
2. display according to claim 1, is characterized in that, described driving circuit repeats with a characteristic frequency to transmit described frame updating control signal to described control module.
3. display according to claim 1, it is characterized in that, a special parameter of described display panel detected further by described driving circuit, and when described special parameter meets first specified conditions, transmits described frame updating control signal to described control module.
4. display according to claim 3, it is characterized in that, the picture grey decision-making of described special parameter shown by described display panel, and described first specified conditions are the initial picture grey decision-making that described picture grey decision-making has been shown on described display panel according to described last image frame by described display panel lowers at least 20%.
5. display according to claim 1, it is characterized in that, described control module or described driving circuit can be detected described data crossfire and compare the adjacent image frame of priority of specific quantity, when the adjacent image frame of priority of described specific quantity meets second specified conditions, if described control module and described driving circuit can obtain friendship and hold confirmation, then described control module enters its standby mode, and described driving circuit drives described display panel according to received last image frame, and enter its standby mode.
6. a display, is characterized in that, it comprises:
One control module, at least has normal and standby two kinds of operator schemes;
One display unit, comprises one drive circuit and a display panel, and described driving circuit at least has normal and standby two kinds of operator schemes; And
One operation interface, connect described control module and described driving circuit, in order to provide image frame data-signal from described control module one-way transmission to described driving circuit, and the two-way transmission of frame updating control signal between described control module and described driving circuit;
Wherein, described control module transmits the image frame of a data crossfire to described driving circuit via described operation interface, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire;
Wherein, described control module or described driving circuit can be detected described data crossfire and compare the adjacent image frame of priority of specific quantity, when the adjacent image frame of priority of described specific quantity meets second specified conditions, if described control module and described driving circuit can obtain friendship and hold confirmation, then described control module enters its standby mode, and described driving circuit drives described display panel according to received last image frame, and enter its standby mode;
Wherein, described driving circuit transmits a frame updating control signal to described control module via described operation interface, to ask to upgrade the picture shown by described display panel, then described control module enters its normal mode and transmits the last image frame sent out of described data crossfire to described driving circuit, enters its standby mode immediately afterwards; And described driving circuit drives described display panel according to described last image frame, and enter its standby mode.
7. display according to claim 6, is characterized in that, described specific quantity is 5, and the GTG variation value that described second specified conditions are the adjacent image frame of priority of described specific quantity is less than 20%.
8. display according to claim 6, is characterized in that, described driving circuit repeats with a characteristic frequency to transmit described frame updating control signal to described control module.
9. display according to claim 6, it is characterized in that, a special parameter of described display panel detected further by described driving circuit, and when described special parameter meets the 3rd specified conditions, transmits described frame updating control signal to described control module.
10. display according to claim 9, it is characterized in that, the described special parameter picture grey decision-making that to be described display panel show according to described received last image frame, and described 3rd specified conditions are the initial picture grey decision-making that described picture grey decision-making has been shown on described display panel according to described last image frame by described display panel lowers at least 20%.
The update method of 11. 1 kinds of display frames, is characterized in that, it comprises the following steps:
(A) display is provided, it comprises the display unit that a control module and has driving circuit and display panel, described control module at least has normal and standby two kinds of operator schemes, described driving circuit at least has normal and standby two kinds of operator schemes, and described control module and described driving circuit operate in its normal mode respectively;
(B) described control module transmits the image frame of a data crossfire to described driving circuit, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire; Wherein, when having transmitted described data crossfire, described control module has entered its standby mode; When receiving described data crossfire, described driving circuit drives described display unit according to the last image frame of described data crossfire, and enters its standby mode;
(C) described driving circuit enters its normal mode, and asks described control module to upgrade picture shown by described display panel; And
(D) described control module enters its normal mode, and transmits the described last image frame of described data crossfire to described driving circuit, and enters its standby mode; And described driving circuit drives described display panel according to described last image frame, and enter its standby mode,
Wherein, before step (C), the following step is comprised further:
(C0) special parameter of described display panel detected by described driving circuit; Wherein, when described special parameter meets specified conditions, described method performs step (C), described special parameter is the picture grey decision-making that described display panel shows according to described last image frame, and described specified conditions are the initial picture grey decision-making that described picture grey decision-making has been shown on described display panel according to described last image frame by described display panel lowers at least 20%.
The update method of 12. display frames according to claim 11, is characterized in that, step (C) comprising: described driving circuit transmits a request signal to described control module, to ask to upgrade the picture shown by described display panel.
The update method of 13. 1 kinds of display frames, is characterized in that, it comprises the following steps:
(A) display is provided, it comprises the display unit that a control module and has driving circuit and display panel, described control module has normal and standby two kinds of operator schemes, described driving circuit has normal and standby two kinds of operator schemes, and described control module and described driving circuit operate in its normal mode respectively;
(B) described control module transmits the image frame of a data crossfire to described driving circuit, and described driving circuit drives described display panel, to upgrade the picture shown by described display panel according to the precedence of the image frame of described data crossfire; Wherein, described control module or described driving circuit are detected described data crossfire and are compared the adjacent image frame of priority of specific quantity, when the adjacent image frame of priority of described specific quantity meets specified conditions, if described control module and described driving circuit can obtain friendship and hold confirmation, then described control module enters its standby mode, and described driving circuit drives described display panel according to received last image frame, and enter its standby mode;
(C) described driving circuit enters its normal mode, and asks described control module to upgrade picture shown by described display panel; And
(D) described control module enters its normal mode, and transmits the last image frame sent out of described data crossfire to described driving circuit, and enters its standby mode; And described driving circuit drives described display panel according to described last image frame, and enter its standby mode,
Wherein, step (C) and (D) repeat to be performed according to a characteristic frequency.
The update method of 14. display frames according to claim 13, is characterized in that, in step (B), described specific quantity is 5, and the GTG variation value that described specified conditions are the adjacent image frame of priority of described specific quantity is less than 20%.
The update method of 15. display frames according to claim 13, is characterized in that, step (C) comprising: described driving circuit transmits a request signal to described control module, to ask to upgrade the picture shown by described display panel.
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| KR101084170B1 (en) * | 2009-08-03 | 2011-11-17 | 삼성모바일디스플레이주식회사 | Power control system for display module with external DC-DC convertor |
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| TW200744059A (en) * | 2006-05-23 | 2007-12-01 | Au Optronics Corp | A panel module and power saving method thereof |
| CN101174064A (en) * | 2006-06-08 | 2008-05-07 | 友达光电股份有限公司 | LCD driving circuit, time-schedule controller and driving method thereof |
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