CN103680374A - Panel display device - Google Patents
Panel display device Download PDFInfo
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- CN103680374A CN103680374A CN201210364251.9A CN201210364251A CN103680374A CN 103680374 A CN103680374 A CN 103680374A CN 201210364251 A CN201210364251 A CN 201210364251A CN 103680374 A CN103680374 A CN 103680374A
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Abstract
The invention provides a panel display device. The panel display device comprises a time sequence controller, a plurality of source drivers, a first data path and a second data path; the first data path and the second data path are both coupled between the time sequence controller and the source drivers; the time sequence controller transmits a plurality of display data to the source drivers through the first data path; and when detecting an error, the source drivers transmit at least one notification datum to the time sequence controller through the second data path so as to inform the time sequence controller that the error should be corrected.
Description
Technical field
The invention relates to a kind of display device, particularly relevant for a kind of display apparatus that comprises the transmission system between source electrode driver and time schedule controller.
Background technology
In recent years, flourish with semiconductor science and technology, the product of flat panel display rises thereupon.In flat-panel screens, by time schedule controller transmitting digital, show that data are to source electrode driver.Source electrode driver will show that data are converted to corresponding simulating signal, then drives display panel with simulating signal.
Conventional transmission mechanism between timing controller to source driver only has one-way transmission.That is conventional transmission mechanism is only transferred to the one-way transmission of source electrode driver by time schedule controller, by source electrode driver, be not back to the mechanism of time schedule controller.Yet the impact due to system power supply interference or other interference sources, will cause wrong incidence to a certain degree for the high-speed bus between timing controller to source driver.Therefore the control signal that, this high-speed bus transmits or show that data just have reliability issues to a certain degree.In addition, abnormal if the state machine of source electrode driver and time schedule controller (state machine) occurs, time schedule controller cannot be learnt the situation of source electrode driver and make system produce demonstration abnormality.Therefore,, when source electrode driver occurs when abnormal, time schedule controller cannot be learnt the situation of source electrode driver, the picture thereby display panel can show abnormality.
Summary of the invention
The invention provides a kind of display apparatus, provide the second data routing to source electrode driver.Source electrode driver can transfer to time schedule controller by notification data by described the second data routing, with the mistake of informing that time schedule controller need be repaired.
The embodiment of the present invention proposes a kind of display apparatus, comprises time schedule controller, a plurality of source electrode driver, at least one the first data routing and at least one the second data routing.Wherein the first data routing and the second data routing are coupled between time schedule controller and these source electrode drivers.Time schedule controller transfers in these source electrode drivers at least one by a plurality of demonstration data by described the first data routing.When at these source electrode drivers, at least one makes a mistake, in those source electrode drivers, at least one transfers to time schedule controller by least one notification data by described the second data routing.
Based on above-mentioned, the source electrode driver in the embodiment of the present invention, when making a mistake, can transmit notification data to time schedule controller and need mis repair to inform time schedule controller, thereby guarantee to demonstrate normal picture.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and accompanying drawing shown in coordinating, be described in detail below.
Accompanying drawing explanation
Fig. 1 is the transmission schematic diagram of the display apparatus of one embodiment of the invention;
Fig. 2 is the principle schematic of the transmitted in both directions of the embodiment of the present invention;
Fig. 3 is the transmission system schematic diagram according to one embodiment of the invention explanation display apparatus;
Fig. 4 is the circuit framework schematic diagram according to display apparatus shown in one embodiment of the invention key diagram 3;
Fig. 5 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3;
Fig. 6 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3;
Fig. 7 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3;
Fig. 8 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3;
Fig. 9 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3.
Description of reference numerals:
100,300: display apparatus;
110: time schedule controller;
120,421～424,521～524,621～624,721～724,821～824,921～924: source electrode driver;
130,140: data routing;
150: display panel;
201: show data field;
202: white space;
H-Active: level shows length;
V-Active: vertically show length;
H-Total: whole horizontal lengths;
V-Total: whole vertical lengths;
Blanking: clear area.
Embodiment
Fig. 1 is the transmission schematic diagram of the display apparatus of one embodiment of the invention.Please refer to Fig. 1, display apparatus 100 comprises time schedule controller 110, one or more source electrode driver 120, the first data routing 130, the second data routing 140 and display panel 150.Wherein the first data routing 130 and the second data routing 140 are all coupled between time schedule controller 110 and source electrode driver 120.
When source electrode driver makes a mistake, for example source electrode driver 120 detects demonstration data (or control signal) that data routing 130 transmits when wrong, or source electrode driver 120 state machine (State machine) that source electrode driver 120 detected occurs when abnormal, source electrode driver 120 can transmit notification datas to time schedule controller 110 by data routing 140.For example, when in a plurality of source electrode drivers 120, at least one demonstration data that data routing 130 transmission detected make a mistake, in described source electrode driver 120, at least one transfers to time schedule controller 110 by least one notification data by data routing 140, wrong to inform the data that time schedule controller 110 transmitted.Wherein, the mechanism that source electrode driver 120 detection display data make a mistake can utilize check bit (checksum bit) to compare and learn.When transmitting demonstration data to source electrode driver 120, time schedule controller 110 can add check bit in each sub-pixel (sub-pixel) data that show data.Source electrode driver 120, after receiving demonstration data and check bit, can check that whether each sub-pixel data is wrong according to check bit.
The notification data that time schedule controller 110 can be transmitted by data routing 140 knows whether source electrode driver 12 makes a mistake, and the type making a mistake, to carry out corresponding correction conduct.For example, after time schedule controller 110 is apprised of transmitted demonstration data and is made a mistake, the demonstration data that time schedule controller 110 can retransfer correct by data routing 130 are again to source electrode driver 120.Again for example, at time schedule controller 110, be apprised of after the state machine generation extremely of source electrode driver 120, time schedule controller 110 can be by data routing 130 communications of control data to source electrode driver 120, and this controls data can make the state machine of source electrode driver 120 be reset to original state.
Above-mentioned data routing 130 and data routing 140 can be different buses.In other embodiments, above-mentioned data routing 130 can be the two-way bus of same with data routing 140.Fig. 2 is the principle schematic of the transmitted in both directions of the embodiment of the present invention.Please refer to Fig. 2, from time schedule controller 110 to the bus between source electrode driver 120, it transmits a frame, and (frame, time frame) (data space) is divided into blank (Blanking) space 202 that shows that the occupied demonstration data field (Active Area) of data 201 and not shown data are occupied.Whole data space is multiplied each other and obtained by whole horizontal lengths (H-Total) and whole vertical lengths (V-Total).Show that 201 of data fields are to show that by level length (H-Active) multiplies each other and obtains with vertical demonstration length (V-Active).For time schedule controller 110, it is known that level shows that length (H-Active) and vertical demonstration length (V-Active) are all, so time schedule controller 110 is known when can pass to white space 202.When at white space 202, time schedule controller 110 can transmit a package to source electrode driver 120 and stop immediately transmitting, and the right to use of decontroling bus is to source electrode driver 120.Source electrode driver 120, after receiving package, can utilize same bus to transmit notification data to time schedule controller 110.After notification data transmits, source electrode driver 120 can transmit package to time schedule controller 110 to be stopped transmitting simultaneously, to the right to use of bus is given back to time schedule controller 110.Therefore above-mentioned data routing 130, utilizes the principle shown in Fig. 2 can reach between source electrode driver and time schedule controller and carries out transmitted in both directions by single bus, so can be implemented as same bidirectional bus with data routing 140.
Fig. 3 is the transmission system schematic diagram according to one embodiment of the invention explanation display apparatus.Embodiment illustrated in fig. 3 can be with reference to the related description of Fig. 1.Be different from part embodiment illustrated in fig. 1, be embodiment illustrated in fig. 3 in the second data routing 140 be a bidirectional bus.Please refer to Fig. 3, source electrode driver system 300 comprises time schedule controller 110, one or more source electrode driver 120, the first data routing 130 and the second data routing 140.Time schedule controller 110 is passed to source electrode driver 120 by digital displaying data by data routing 130.At source electrode driver 120, by data routing 140, transmit notification data to time schedule controller 210, time schedule controller 210 can be resolved notification data, then corresponding control data is transferred to source electrode driver 120 by the first data routing 130 or the second data routing 140.For example, source electrode driver 120 can then transmit package to time schedule controller 110 by data routing 140 when notification data transmission completes, so that the right to use of decontroling data routing 140 is to time schedule controller 110.At time schedule controller 110, receive notification data and obtain after the right to use of data routing 140, time schedule controller 110 can by data routing 140 transmit corresponding control data to source electrode driver 120 with mis repair.After controlling Data Transfer Done, time schedule controller 110 can be transmitted package to source electrode driver 120 and be stopped transmitting by data routing 140, to the right to use of bus (data routing 140) is given back to source electrode driver 120.
When display apparatus 100 provided by the invention and 300 not only can be abnormal at the state machine of source electrode driver 120, repair, also can optimization system parameter make the improved efficiency of display apparatus.For example, source electrode driver 120 can be totally from the errors number of the demonstration data of data routing 130, and the data of errors number are passed to time schedule controller 110 by data routing 140; Time schedule controller 110 is data and to deserved adjustment System parameter according to this.For example, when the transmission errors number of data routing 130 is a lot, time schedule controller 110 can tune up the amplitude that shows data, to increase the transmission probalility of success of data routing 130.Otherwise seldom time, time schedule controller 110 can be turned the amplitude that shows data down, to reduce power consumption in the transmission errors number of data routing 130.
Fig. 4 is the circuit framework schematic diagram according to display apparatus shown in one embodiment of the invention key diagram 3.Embodiment illustrated in fig. 4 can be referring to figs. 1 through the related description of Fig. 3.Please refer to Fig. 4, display apparatus comprises time schedule controller 110, source electrode driver 120, data routing 130 and data routing 140.Wherein, source electrode driver 120 comprises source electrode driver 421,422,423 and 424.In the present embodiment, the circuit framework of data routing 130 is multiple spot (multi-drop) frameworks.And data routing 140 is also multi-point bus framework, and data routing 140 has two-way transmission capabilities.That is, source electrode driver 421～424) can transmit notification data to time schedule controller 110 by data routing 140, time schedule controller 110 also can be transmitted and be controlled data to source electrode driver 421～424 by data routing 140.
Fig. 5 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3.Embodiment illustrated in fig. 5 can be referring to figs. 1 through the related description of Fig. 3.Please refer to Fig. 5, in the present embodiment, source electrode driver 120 comprises source electrode driver 521,522,523 and 524.In the present embodiment, the circuit framework of data routing 130 is point-to-point (P2P) frameworks, that is data routing 130 is the unidirectional dedicated channel that time schedule controller 110 and each source electrode driver 521～524 are set up, and each interchannel is not connected to each other.Compared to multi-point bus framework, the speed of point-to-point transmission framework is higher, be applicable to the application of high resolving power/high screen updates rate now, but because each source electrode driver needs an independent data line to connect time schedule controller, so the circuit structure of Peer to Peer Architecture can be huger than multi-point bus framework.The circuit framework of data routing 140 is multipoint architecture and has two-way transmission capabilities.
In one embodiment of the invention, in order to transmit notification data, also can adopt Peer to Peer Architecture with the data routing 140 of controlling data.Fig. 6 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3.Embodiment illustrated in fig. 6 can be referring to figs. 1 through the related description of Fig. 3.Please refer to Fig. 6, in the present embodiment, source electrode driver 120 comprises source electrode driver 621,622,623 and 624.In the present embodiment, the circuit framework of data routing 130 is multi-point bus frameworks, in order to transmit, shows data.Data routing 140 is Peer to Peer Architecture and the ability with bi-directional transfer of data, therefore source electrode driver 621～624 transmits notification data to time schedule controller 110 by data routing 140, and time schedule controller 110 can be passed to source electrode driver 621～624 by controlling data by data routing 140 again.
In one embodiment of the invention, in order to transmit, show the data routing 130 of data and all can adopt point-to-point structure in order to transmit notification data with the data routing 140 of controlling data.Fig. 7 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3.Embodiment illustrated in fig. 7 can be referring to figs. 1 through the related description of Fig. 3.Please refer to Fig. 7, in the present embodiment, source electrode driver 120 comprises source electrode driver 721,722,723 and 724.In the present embodiment, data routing 130 is Peer to Peer Architecture, in order to transmit, shows data.Data routing 140 is also Peer to Peer Architecture and the ability with transmitted in both directions, in order to transmit notification data and to control data.
Fig. 8 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3.Embodiment illustrated in fig. 8 can be referring to figs. 1 through the related description of Fig. 3.Please refer to Fig. 8, in the present embodiment, source electrode driver 120 comprises source electrode driver 821,822,823 and 824.In in the present embodiment, data routing 130 is multi-point bus framework, in order to transmit, shows data.The chained architecture (Cascade) that data routing 140 is one-way transmission.When source electrode driver 821～824 is when wherein one detects mistake, the source electrode driver making a mistake can be sent to time schedule controller 110 by data routing 140.For example, source electrode driver 821 is when mistake being detected, and source electrode driver 821 can first be sent to source electrode driver 822 toward the notification data of time schedule controller 110 by data routing 140 by tendency to develop.Source electrode driver 822～824 can assist source electrode driver 821 that notification data is sent to time schedule controller 110 by data routing 140.When time schedule controller 110 receives after notification data, time schedule controller 110 can be controlled data by data routing 140 and pass to source electrode driver 821～824.For example, if time schedule controller 110 will be passed to source electrode driver 824 by controlling data, time schedule controller 110 can first be passed to source electrode driver 821 by control data by data routing 140.Source electrode driver 821～823 can assist time schedule controller 110 that control data are sent to source electrode driver 824 by data routing 140.
Fig. 9 is the circuit framework schematic diagram according to display apparatus shown in another embodiment of the present invention key diagram 3.Embodiment illustrated in fig. 9 can be referring to figs. 1 through the related description of Fig. 8.Please refer to Fig. 9, in the present embodiment, source electrode driver 120 comprises source electrode driver 921,922,923 and 924.In in the present embodiment, in order to transmit, show that the data routing 130 of data is point-to-point structure, and data routing 130 shows that in order to transmit the transmission mode of data can, with reference to the data routing 130 in Fig. 5, therefore repeat no more.In order to transmit notification data, be series arrangement with the data routing 140 of controlling data.In the present embodiment, data routing 140 transmission notification datas can, with reference to the data routing 140 in Fig. 8, therefore repeat no more with the transmission mode of controlling data.
Based on above-mentioned, in display apparatus, time schedule controller 110 and each source electrode driver 120 can be done message exchange by script or extra data routing 140.For example, source electrode driver 120 can detect the mistake that shows data, and returns corresponding notification data to time schedule controller 110, and time schedule controller 110 can return again corresponding control data to source electrode driver 120 with real-time mis repair.In part embodiment, data routing 140 in display apparatus also can have the ability of transmitted in both directions, source electrode driver 120 can transmit notification data to time schedule controller 110 by data routing 140, and time schedule controller 110 also can be by same data routing 140 communications of control data to source electrode driver 120.In addition, display apparatus is recoverable error not only, and time schedule controller 110, also to do after algorithm computing by the information of exchange, carries out the automatic adjustment optimization system parameter of system effectiveness to improve usefulness.Also have, the data routing 130 that shows data in order to transmit in display apparatus can be multiple spot (Mult-Drop) framework or point-to-point (P2P) bus architecture, in order to transmit notification data, can be multiple spot (Mult-Drop) framework, point-to-point (P2P) bus architecture or series arrangement (Cascade) with the data routing 140 of controlling data.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a display apparatus, is characterized in that, comprising:
Time schedule controller;
A plurality of source electrode drivers;
At least one the first data routing, is coupled between this time schedule controller and those source electrode drivers, and wherein this time schedule controller transfers in those source electrode drivers at least one by a plurality of demonstration data by described the first data routing; And
At least one the second data routing, be coupled between this time schedule controller and those source electrode drivers, when wherein in those source electrode drivers, at least one makes a mistake, in those source electrode drivers, at least one transfers to this time schedule controller by least one notification data by described the second data routing.
2. display apparatus according to claim 1, is characterized in that, this first data routing and this second data routing are same bus.
3. display apparatus according to claim 1, it is characterized in that, when this time schedule controller receives after this notification data, this time schedule controller transfers to those source electrode drivers by least one control data by this first data routing or this second data routing accordingly.
4. display apparatus according to claim 3, is characterized in that, these control data make the abnormal source electrode driver of state machine in those source electrode drivers get back to an original state.
5. display apparatus according to claim 1, is characterized in that, those show that data have at least one check bit, and whether those source electrode drivers utilize those demonstration data that described check bit inspection receives from this time schedule controller to make a mistake.
6. display apparatus according to claim 1, is characterized in that, this source electrode driver transfers to this time schedule controller by system statistics data by this second data routing, and this time schedule controller is according to the data-optimized systematic parameter of this system statistics.
7. display apparatus according to claim 6, is characterized in that, these system statistics data comprise the number of times that those transmission that show data make a mistake.
8. display apparatus according to claim 7, is characterized in that, this systematic parameter shows the amplitude of data for this.
9. display apparatus according to claim 1, is characterized in that, this first data routing is multi-point bus framework or Peer to Peer Architecture, and this second data routing is multi-point bus framework, Peer to Peer Architecture or chained architecture.
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