TWI463454B - Data transfer system - Google Patents

Description

Data transmission system

The present invention relates to a data transmission system, and more particularly to a data transmission system for short-range wireless communication.

In recent years, touch panels have been widely used in general consumer electronic products, such as smart phones, digital cameras, digital music players (MP3), personal digital assistants (PDAs), satellite navigation devices (GPS), A hand-held PC, and even a new Ultra Mobile PC (UMPC), etc., are all combined with a display screen to form a touch display device.

On the other hand, in order to increase the application level of consumer electronics, some operators have begun to add the function of near field communication (or short-range wireless communication) to the products of these electronic devices. Wherein, near field communication (or short-range wireless communication) can provide a message that can be transmitted from one electronic device to another electronic device, such as an instruction, music, picture, business card, data or file, without an actual circuit connection. In addition to making the electronic device convenient for transmission, the transmission path can also improve the application level of the electronic device, for example, it can replace the occasion of using a large number of IC cards, such as access control, ticket, ticket, or credit card payment, or receiving advertisements. In the case of messages, such as receiving advertisements from local airport hotels on the advertising screen at the airport, receiving coupons from the market screen, etc.

Therefore, the present invention provides a data transmission system for transmitting data or files to another electronic device by means of a display device, so that the application level of the display device can be expanded, for example, in combination with the application of near field communication.

In view of the above problems, an object of the present invention is to provide a data transmission system constructed on a display device, which uses a display device to transmit data or files to another electronic device, so that it can be used in many wireless communication situations, such as close range. Wireless communication, etc., to further expand the application level of the display device.

To achieve the above object, a data transmission system includes an operating device and a matrix display device. The matrix display device has a display panel and a control unit. The control unit receives a data stream and transmits at least a portion of the data stream to one of the electrodes of the display panel. When the operating device operates on a display surface of the matrix display device, at least a portion of the data stream is coupled from the matrix display device to the operating device.

In one embodiment, the display panel includes a matrix substrate having a substrate and a pixel matrix. The pixel matrix is disposed on one side of the substrate, and the display surface is located on the other side of the substrate.

In one embodiment, the electrode is a separate electrode, or at least one of a plurality of row electrodes or a plurality of column electrodes of a pixel matrix.

In an embodiment, when the operating device is operated on the display surface, a portion of the data stream is transmitted from the individual electrode, the row electrode or the column electrode to the operating device.

In one embodiment, a portion of the data stream is transmitted from the matrix display device to the operating device by electromagnetic effects.

In an embodiment, the control unit divides the data stream and includes a plurality of sub-data streams, and the operating device receives the sub-data streams and combines the sub-data streams.

In one embodiment, a sub-stream has a first bit and a second bit, the row electrodes having a first row electrode and at least a second row electrode, the column electrodes having a first column And the electrode and the at least one second column electrode, the control unit transmits the first bit to the independent electrode, or the first row electrode or the first column electrode at a first time, and transmits the second bit to the second time to the second bit a separate electrode, or a second row electrode or a second row electrode.

In one embodiment, a substream has at least one bit, and the control unit transmits the bit to the individual electrodes, or the row electrodes, or the column electrodes at a time.

In one embodiment, a sub-stream has a first bit and a second bit, and the row electrodes or the column electrodes respectively have a first group and at least a second group, and the control unit The first bit and the second bit are respectively correspondingly transmitted to the first group and the second group at a second time.

In one embodiment, a portion of the data stream contains the transmitted start information.

In one embodiment, a portion of the data stream includes delivery end information.

In one embodiment, a portion of the data stream transmission system is separated from one of the matrix display devices by the display data transfer time, that is, after the display data transfer ends or before the display data transfer begins.

In an embodiment, after the partial stream is transmitted, the matrix display device displays at least one complete or partial frame picture.

In one embodiment, at least one of the frames displayed on the display matrix device contains a message ready to stream the data stream before the partial stream begins to transmit.

In an embodiment, after the end of the data stream transmission, at least one of the frames displayed on the display matrix device contains the message of the data stream transmission result.

In one embodiment, at least one of the frames displayed on the display matrix device contains an electrode region for transmitting data prior to the end of the stream transfer.

In one embodiment, at least one of the transmitted sub-streams includes information identifying the matrix display device.

In one embodiment, the signals applied to the electrodes are generated by the sub-data streams as alternating current signals without DC components.

As described above, the data transmission system of the present invention includes an operating device and a matrix display device, the matrix display device has a control unit to receive the data stream, and the control unit transmits at least a portion of the data stream to at least one of the display panels. An electrode, and when the operating device is operated on the display surface of the matrix display device, at least a portion of the data stream can be coupled from the matrix display device to the operating device. Thereby, the matrix display device can transmit the data stream such as data or files to the operating device by wireless means. The data transmission system of the present invention can be combined with the application of short-range wireless communication to transfer data or files to another electronic device by the display device to expand the application level.

DETAILED DESCRIPTION OF THE INVENTION A data transmission system in accordance with a preferred embodiment of the present invention will now be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals.

Please refer to FIG. 1, which is a functional block diagram of a data transmission system 1 according to a preferred embodiment of the present invention.

The data transmission system 1 of the present invention includes an operating device 11 and a matrix display device 12, which are coupled to each other and can be coupled, for example, by capacitive or inductive coupling, thereby transmitting data or files. The transmission of non-contact data or files may also be referred to as the transmission of data or files in a wireless manner. In this embodiment, the operating device 11 can be, for example, a receiving device (eg, a card reader, an access control system, etc.), or a wafer card, or another electronic device. The operating device 11 may have a functional subsystem such as a process control system, a storage system or a transfer system. Here, the "system" may be constituted by a hardware, a soft body, or a firmware, or a combination thereof.

In addition, please refer to FIG. 2A , which is a schematic side view of the matrix display device 12 near the display surface 121 . The matrix display device 12 includes a matrix substrate 122 and a display surface 121. The array substrate 122 includes a substrate 123 and an electrode E. The electrode E is disposed on one side of the substrate 123, and the display surface 121 is disposed on the other side of the substrate 123. The matrix substrate 122 can be a color filter substrate in a conventional liquid crystal display device. The electrode E can include a common electrode of the color filter substrate and at least one independent electrode for transmitting data.

In addition, FIG. 2B is another embodiment of the present invention, wherein the matrix substrate 122 includes a substrate 123 and a matrix 124, and the matrix 124 may include a plurality of electrodes (not shown). Compared with the matrix substrate in the conventional liquid crystal display device, the matrix display device 12 of the present embodiment is reversed, that is, the substrate 123 of the matrix substrate 122 is compared with the color filter substrate CF of FIG. 2B. Closer to the user's display surface 121, to facilitate the coupling of the signal. This matrix substrate 122 will be mainly described in the following description.

In the present embodiment, the display surface 121 refers to the surface of the matrix display device 12 closest to the user when the user views the display image of the matrix display device 12. The matrix display device 12 further includes a protective glass 125 disposed on one side of the substrate 123 relative to the matrix 124, and the display surface 121 is a surface of the protective glass 125 adjacent to the user. In addition, one side of the substrate 123 adjacent to the cover glass 125 may further include other members such as an optical film or an iron frame or the like. Moreover, if the display device is a liquid crystal display device, the display device may further include a color filter substrate CF, and the color filter substrate CF is disposed adjacent to the active matrix substrate 122 on one side of the matrix 124, and the active matrix substrate 122 relative settings. In addition, if the display device is an electronic paper, the display device may further include an electrophoretic material (not shown) adjacent to the active matrix substrate 122 having one side of the matrix 124.

In the present embodiment, the matrix substrate 122 refers to a matrix substrate having a pixel matrix, such as a liquid crystal display panel, an organic light emitting diode panel, a light emitting diode panel, an electrophoretic display panel, or a MEMS display panel. The matrix 124 may include a plurality of row electrodes, a plurality of column electrodes, and a plurality of pixel electrodes, and the row electrode systems are alternately arranged with the column electrodes. In addition, the matrix 124 can be an active matrix or a passive matrix. The matrix 124 is exemplified by an active matrix, which may further include a plurality of transistors, and the transistor systems are electrically connected to the row electrodes, the column electrodes, and the pixel electrodes, respectively.

In addition, referring to FIG. 1 again, the matrix display device 12 further includes a control unit 126 and a display panel 127. The control unit 126 can receive and process a data stream, and can at least part of the data stream. Transfer to one of the electrodes of the display panel 127. The display panel 127 can include the matrix substrate 122 described above. In addition, the data stream can be a digital data stream or a digital file stream, and can be touch information, command information, identification information, transaction information, advertising information, preferential information, file information or other information. The electrode of the display panel 127 can be a single electrode (which can be one or more electrodes) and is independent of the pixel matrix or at least one of a plurality of row electrodes or a plurality of column electrodes of the pixel matrix. In addition, the control unit 126 can split and process the data stream into at least one sub-data stream and transmit the same to the electrodes of the display panel 127 of the matrix display device 12, and the operating device 11 can receive the sub-data streams. The processing of the data stream may include a series-to-parallel conversion, an over-code, an encryption, a header (including a data size, a check code, a serial number, a tracking data), a transmission start flag, and/or End tag, etc. The difference from the general communication transmission mode is that different electrodes can be used simultaneously as transmission sources (multi-communication pipes) for transmission. These communication pipes can use space isolation or modulation techniques to reduce interference between them. Note that the stream-to-parallel conversion method of the data stream may be sequential (for example, dividing the first to Nth bits of the data stream to the first substream, and the N+1th to Mth bits to the second substream) , ..., etc.), interleaving (for example, the first bit is assigned to the first substream, the second bit is assigned to the second substream, ..., the Nth bit is assigned to the last substream, N+1 The bit is assigned to the first substream, ... and so on, or a combination of the two.

Referring to FIG. 1 and FIG. 2B again, when the user operates on the display surface 121 of the matrix display device 12 by using the operating device 11, part of the data stream can be coupled from the matrix substrate 122 of the matrix display device 12 by electromagnetic effect. (for example capacitive or inductive coupling) to the operating device 11. Here, the coupling wirelessly transmits digital information (ie, 0 or 1) from the matrix display device 12 to the operating device 11. When the operating device 11 receives the data stream transmitted from the display surface 121, the operating device 11 performs reverse processing by the received data stream to obtain the transmitted information. The method of receiving data is to approach or contact the display surface 121 of the matrix display device 12 by the operating device 11 to couple the signal to the operating device by electromagnetic action.

In addition, if a row electrode or a column electrode in the pixel matrix is used to transmit a part of the data stream, the data transmission with the matrix display device 12 can be transmitted at different times, for example, after the end of a display data transmission or A display data transfer is transmitted to the operating device 11 before the start of transmission. Note that the display data and part of the data stream are only transmitted on the electrodes for data representing two different purposes, and do not limit the display data to the operating device or display part of the data stream. In other words, the matrix display device 12 can start transmitting the sub-stream to the operating device 11 after the end of one frame picture and before the start of the next picture frame or during the display of one picture frame. It should be noted that if the separate electrodes outside the pixel matrix are used for data stream transmission, the time required for transmission on the frame screen may not be matched.

In addition, after the data stream is transmitted to the operating device 11, the matrix display device 12 can display at least one complete or partial frame picture. In other words, the time point at which the data stream transmission ends may be located after the end of a picture frame screen, and before the start of the next picture frame picture, or during the period of a picture frame, and is not limited thereto. In addition, before the data stream starts to be coupled, the matrix display device 12 can display the data stream to be transmitted to the operating device 11 by using at least one frame screen; and, after the data stream ends, the matrix display device 12 can also use at least one frame. The screen displays the end of the data stream. In other words, the matrix display device 12 can display a prompt screen to remind the user of the attention before the matrix display device 12 starts transmitting the first data stream and after the last data stream ends the transmission. In addition, during the transmission of the data stream, the matrix display device 12 may also indicate the range of the electrode regions for transmission in the display screen to facilitate the coupling of the signals by the operating device 11.

Hereinafter, a thin film transistor substrate (TFT substrate) of a liquid crystal display device is used as the matrix substrate 122 to explain how the substream is coupled from the row electrode or the column electrode of the matrix display device 12 to the operation device 11.

Please refer to FIG. 2B and FIG. 3 simultaneously. FIG. 3 is a schematic view of the thin film transistor substrate used in the embodiment.

The matrix 124 may include a plurality of row electrodes S ₁ to S _M , a plurality of column electrodes D ₁ to D _N , and a plurality of pixel electrodes E ₁₁ to E _MN , the row electrodes S ₁ to S _M and the column electrodes D ₁ to The D _N are staggered and are substantially perpendicular or at an angle to each other. Further, the matrix 124 may further comprise a plurality of transistors T ₁₁ ~ T _MN, these transistors T ₁₁ ~ T _MN respectively such row electrodes S ₁ ~ S _M, these column electrodes D ₁ ~ D _N, and such The pixel electrodes E ₁₁ to E _{MN are} electrically connected. Here, the row electrodes S ₁ to S _M are exemplified by scanning lines, and the column electrodes D ₁ to D _N are exemplified by data lines. Of course, the row electrodes S ₁ to S _{M may} be data lines, and the column electrodes D _{1 may be used.} ~D _N is the scan line. In addition, a driving module can be further disposed on the substrate 123, and includes a data driving circuit, a scanning driving circuit, a timing control circuit (not shown), and a gamma correction circuit (not shown), which can be driven by the driving module. The LCD panel displays the image. Since the drive module is a conventional technology for driving images, it will not be described here. In addition, the matrix substrate of this aspect is merely illustrative and is not intended to limit the present invention. The focus of this embodiment is that the sub-data stream is transferred from the matrix substrate 122 to the operating device 11 by at least one of the row electrodes S ₁ to S _M and/or the column electrodes D ₁ to D _N .

In this embodiment, the column electrodes D ₁ -D _N can be used to transmit the sub-data stream in addition to the display data signal of the general frame picture. For example, a sub-stream that is higher than the display signal frequency or a neutral time at which the display data signal is transmitted is directly superimposed on the display signal, for example, the time before all the row electrodes S ₁ to S _{M are} scanned after the next scan is continued ( The gap time between the frame screen and the frame screen); either before a row electrode scan is completed and before the next scan is started; or during each row electrode scan time, the display data is shortened and the data signal is transmitted. Waiting before. Here, the sub-stream can be provided by the function of the extended timing control (T-con) circuit and the data or scan drive circuit to simplify the circuit design.

Please refer to FIG. 4 , which is a schematic diagram of signals of adjacent two rows of electrodes and adjacent two columns of electrodes in FIG. 3 . Here, as each column of transistors is turned on for display data display, data flow can be simultaneously transmitted as an example. It should be noted that it is not necessary to turn on or off the transistor, and the data flow can be performed in the state where the transistor is off. Transfer, at this time each sub-stream can be transmitted to the column or row electrode respectively. The row electrodes S ₁ to S _M respectively transmit the scanning signals SS to sequentially turn on the transistors of each column, and in the time when each column of the transistors is turned on, the column electrodes D ₁ to D _N respectively transmit the sub-stream ES and display. Information signal DS. In this embodiment, as shown in FIG. 4, when the row electrode S _M-1 transmits its scanning signal SS _M-1 , all the column electrodes D ₁ ～ D _N transmit the sub-data stream ES _M-1 ; S _M which the electrode transfer scan signals SS _M, all of the column electrodes D ₁ ~ D _N sub-system transport data stream ES _M. In FIG. 4, the sub-streams ES _M-1 and ES _M are marked in different voltage levels than the display data signal DS, and may be implemented in the same level. In this manner, when the column electrodes D ₁ to D _N transmit the scanning signals SS ₁ to SS _M along with the row electrodes S ₁ to S _M , the first data stream ES ₁ to the Mth sub-data stream ES _M can be respectively transmitted to At least a portion of the flow ES is coupled to the operating device 11.

It should be added that the sub-streams ES _M and ES _M-1 shown in FIG. 4 are shown as high-level 1 , but are merely schematic. Of course, low-level 0 can also be used. In addition, in order to avoid the polarity problem of the signals, the signals of the sub-streams may themselves adopt an AC signal without a DC component. Furthermore, the sub-streams ES _M and ES _M-1 may contain one bit of data or a plurality of bits, respectively, and are not limited thereto. Except that all the column electrodes in FIG. 4 transmit the same sub-stream in the same frame time, the column electrodes D ₁ -D _N can also transmit different sub-streams ES ₁ -ES _{M respectively} . The same sub-stream may be transmitted by a plurality of column electrodes, for example, the column electrodes D ₁ - D ₃ both transmit the first sub-stream ES ₁ , and the column electrodes D ₄ - D ₆ all transmit the second sub-stream ES ₂ ; The same principle can also be applied to the sub-streams transmitted by the row electrodes. In addition, in order to ensure the correctness of data stream transmission, the sub-data stream can also be repeatedly transmitted at different times, that is, if an abnormality is found, the same sub-data stream can be transmitted again to ensure that the operating device 11 receives the data correctly. Sex. Of course, the column electrodes D ₁ -D _N and the row electrodes S ₁ -S _M may additionally transmit a more complicated sub-stream, which will be described in detail below.

In addition, the above modulation method is an amplitude modulation (Amplitude Modulation) technology, that is, the amplitude of the digital signal is expressed as 1 or 0, but frequency modulation (Frequency Modulation) technology can also be used to represent the digital signal. 1 or 0, for example, can define 5 up and down amplitude changes in unit time is 1 and the rest is 0; or use phase shift modulation (Phase Shift Modulation) technology, such as defining a high level plus a low level The bit is 0, and a low level plus a high level is 1. Here, the modulation method is not limited. In addition, in order to avoid interference between adjacent electrodes, techniques such as time division, frequency division, and code division can be used between different electrodes.

When the user operates the display device 121 on the display surface 121 of the matrix display device 12 (for example, touching the display surface or near the display surface 121), the sub-stream can be capacitively coupled from the display surface 121 of the matrix substrate 122. To the operating device 11. Since the present embodiment uses the column electrodes D ₁ -D _{N to} transmit the sub-stream ES as an example, each of the column electrodes D ₁ -D _N serves as one of the capacitive couplings, and the operating device 11 has another capacitive coupling. electrode. After the operating device 11 receives all the sub-streams ES by capacitive coupling, the operating device 11 can combine the received sub-streams ES to obtain a complete data stream, such as a text file, a picture file or an audiovisual file. Wait. For example, when the operating device 11 is an access control unit, the operating device 11 can receive the information of opening or locking the door transmitted by the matrix display device 12 when the display surface 121 of the matrix display device 12 is operated close to the operating device 11. Thereby, the access control or unlocking can be released; when the matrix display device 12 is a public display, the operating device 11 is a mobile phone or other personal device, by bringing the operating device 11 closer to the display of the matrix display device 12 Face 121, such as advertising information, preferential information, geographic information, etc. can be transferred to a personal device to take away.

In addition, please refer to FIG. 5, which is a schematic diagram of the appearance of the matrix display device 12 of the data transmission system 1 of the present invention.

The matrix display device 12 can further include a mode triggering component 128. A user or operating device 11 can trigger the mode triggering component 128 to initiate the matrix display device 12 to enter an operational mode to begin transmitting the data stream. Taking the matrix display device 12 as a human touch display device as an example, when the user needs to send a data stream, the mode triggering component 128 is triggered to start the matrix display device 12 to enter the working mode and start to send the data stream. At this time, the row electrode or the column electrode can turn off the touch and display functions of all or part of the matrix display device 12, thereby preventing the touch screen from causing malfunction and saving power. Note that the mode of operation of the trigger component 128 can have various modes, such as a working mode after a single trigger is restored after a period of time, a working mode is changed every time the trigger is triggered, and a working mode is maintained under a continuous trigger. The mode triggering component 128 is not limited to be outside the display area, and may be integrated with the display panel or the touch panel. For example, it may be a mechanical switch, a touch switch, an icon, or the like.

6A to 6D, respectively, the control unit 126 (not shown in FIGS. 6A to 6D) transmits the sub-data stream to the complex state of the column electrode of the matrix display device 12, of course, the sub-data stream is transmitted. The manner of the row electrodes or the individual electrodes of the matrix display device 12 or a combination thereof may also be the same, and details are not described herein again. 6A to 6D are schematic diagrams showing the transmission relationship between the sub-data stream and the column electrodes D ₁ to D _N , respectively.

The control unit 126 can split a data stream into a plurality of sub-data streams, and when the matrix display device 12 couples all of the sub-data streams to the operating device 11, the operating device 11 can receive the sub-data streams, and The sub-data streams are combined into the original transmitted data stream. Of course, the operating device 11 can also receive only part of the data stream, and the data stream of the portion can include at least one sub-data stream, or a part of the sub-data stream, or a plurality of sub-data streams. Each sub-data stream may have one bit or multiple bits of data, respectively. In addition, the control unit 126 may also include the transmitted start information or the end information in addition to the data stream being processed into the information of the at least one sub-stream for the operation device 11 to confirm the start and end of the transmission. The operating device 11 receives the sub-streams plus the information of the start and end of the transfer, and processes the result into a stream. In addition, the sub-data stream may also include identification information of the matrix display device 12, such as a brand name, a model number, a serial number, and the like, for the identification of the operation device 11 after receiving.

As shown in FIG. 6A, in the present embodiment, the control unit 126 divides the data stream into a plurality of sub-data streams, and each sub-data stream has at least one bit of data. Here, for example, the data of only one bit per sub-stream is taken as an example. Of course, in other embodiments, each substream may also have a plurality of bits. In addition, at a time (for example, one row of electrode scan time, or one frame time, or between one frame time and another frame time), the control unit 126 may stream the sub-data (eg, the first sub- The bit data of the data stream ES ₁ ) is transmitted to all of the column electrodes D ₁ to D _{N , respectively} .

In addition, as shown in FIG. 6B, at another time, the control unit 126 may transmit the bit data of another sub-stream (for example, the second sub-stream ES ₂ ) to all of the column electrodes D ₁ -D _N , respectively. This type of push. In other words, the control unit 126 can transmit one sub-stream to all of the column electrodes D ₁ -D _N in one time and another sub-stream to all of the column electrodes D ₁ -D _N in another time. When all the sub-data stream are listed 12 of electrodes D ₁ ~ D _N matrix display by transmitting, to the operator and all the apparatus 11, 11 which then combined into a complete data operation means. Since the control unit 126 transmits the bit data of the sub data stream to all of the column electrodes D ₁ to D _{N of the} matrix display device 12, regardless of which position of the display surface 121 of the matrix display device 12 the operation device 11 operates, operation The device 11 can receive the bit data of the sub-data stream without missing.

The above aspect is to construct a single transmission channel between the electrode and the operating device 11, that is, a single transmission source, and only one data is transmitted at the same time. In addition, as shown in FIG. 6C, in the embodiment, the control unit 126 can split the data stream into the plurality of sub-data streams ES ₁ to ES _K , and the sub-data streams ES ₁ ～ Each of the ES _Ks has a plurality of bit data, and each of the sub-data streams (for example, the first sub-stream ES ₁ ) has N bits correspondingly transmitted to the column electrodes D ₁ to D _N . The control unit 126 is responsible for transferring the first bit of the first sub-stream ES ₁ to the column electrode D ₁ , the second bit to the column electrode D ₂ , and finally passing the N-th bit of the first sub-stream ES ₁ The column electrode D _{N is} further transferred to the operating device 11 by the column electrodes D ₁ to D _N for a period of time, and then the data delivery step is repeated. Note that the data can be delivered to a buffer in addition to being delivered directly to the electrode and then passed to the electrode at the same time. In the mode of the multi-transport channel, in addition to the above, each sub-data stream is sequentially transmitted (the first sub-stream stream ES _{1 is} transmitted, and then the second sub-stream stream ES ₂ , ..., and so on) is transmitted to each electrode. There may be different combinations with the electrodes, for example, the first sub-stream ES _{1 is} fixed by the column electrode D ₁ , the second sub-stream ES _{2 is} fixed by the column electrode D _{2 ,} and the like. Here, the column electrodes D ₁ to D _N represent a single electrode of all the column electrodes as an example, and each of D ₁ to D _N may also represent a plurality of column electrodes, or each of them may be composed of a plurality of electrodes. an electrode group (e.g., column electrodes D ₁ can be expressed as a combination of 1,3,7, like electrodes, will be described in detail later), and these electrodes are positioned within an acceptable range of operating device 11.

In addition, as described above, the number of bits of the sub-stream can also be divided into a plurality of sub-data streams according to the number of appropriate bits, and the column electrodes are divided into a plurality of groups to respectively separate the bits in the sub-stream. The data is transmitted to these groups separately. For example, the data stream can be divided into sub-data streams smaller than the number of column electrodes, and a certain number of column electrodes are divided into the same group to respectively transmit the bit data in the sub-data stream to the group of the column electrodes respectively. The group is thereby transmitted to the operating device 11.

As shown in FIG. 6D, in this embodiment, each of the sub-streams ES ₁ to ES _K has two bits of data (ie, the first bit and the second bit), and the column electrodes D Among the ₁ to D _N , each of the four column electrodes may be grouped into one group (for example, the column electrodes D ₁ to D ₄ are the first group G ₁ and the column electrodes D ₅ to D ₆ are the second group G ₂ ..., Of course, a different number of column electrodes may be grouped together, and the control unit 126 separates the first bit of the first sub-stream ES _{1 at} the first time and the second bit at the second time. corresponding to a first group G ₁ is transmitted to the column electrodes D ₁ ~ D ₄ G ₂ and the second group of the column electrodes D ₅ ~ D _8, and the second sub-data stream ES ₂ (not shown) of a first The bit and the second bit are respectively transmitted to the third group G ₃ and the fourth group G ₄ (not shown) at different times, and so on.

Furthermore, in order to improve the accuracy of the transmission of the sub-data stream to the operating device 11, the bit data of the sub-streams ES ₁ to ES _K can be repeatedly transferred to the corresponding first group G ₁ to N at different times. /4 group G _N/4 , which can be used to compare the transmission results at different times to ensure the correctness of data transmission. The operating device 11 can recombine the received sub-data streams ES ₁ to ES _K according to the transmitted rules to be restored into data. In addition, the above time may be within one scan time, or within a frame time, or between two adjacent frame times.

In summary, the data transmission system of the present invention includes an operating device and a matrix display device, the matrix display device has a control unit to receive the data stream, and the control unit transmits at least a portion of the data stream to at least one of the display panels. An electrode, and when the operating device is operated on the display surface of the matrix display device, at least a portion of the data stream can be coupled from the matrix display device to the operating device. Thereby, the matrix display device can transmit the data stream such as data or files to the operating device by wireless means. The data transmission system of the present invention can be combined with the application of short-range wireless communication to transfer data or files to another electronic device by the display device to expand the application level.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1. . . Data transmission system

11‧‧‧Operating device

12‧‧‧ Matrix display device

121‧‧‧ Display surface

122‧‧‧Mask substrate

123‧‧‧Substrate

124‧‧‧Matrix

125‧‧‧protective glass

126‧‧‧Control unit

127‧‧‧ display panel

128‧‧‧Mode Trigger Components

CF‧‧‧ color filter substrate

D ₁ ~D _N ‧‧‧ column electrode

DS‧‧‧Information Signal

E‧‧‧electrode

E ₁₁ ~E _MN ‧‧‧pixel electrodes

ES ₁ ~ES _N , ES _K ‧‧‧Substream

G ₁ ~D _N/4 ‧‧‧Group

S ₁ ~S _M ‧‧‧ electrode

SS, SS ₁ ~SS _M ‧‧‧ scan signal

T ₁₁ ~T _MN ‧‧‧O crystal

1 is a functional block diagram of a data transmission system according to a preferred embodiment of the present invention;

2A and 2B are respectively side views of a matrix display device according to different embodiments of the present invention;

3 is a schematic view of a thin film transistor substrate used in the present invention;

4 is a schematic diagram of signals of two rows of electrodes and two columns of electrodes of the thin film transistor substrate of FIG. 3;

Figure 5 is a schematic view showing the appearance of a matrix display device of the present invention;

6A to 6D are schematic diagrams showing the transmission relationship between a sub-data stream and a column electrode, respectively.

1. . . Data transmission system

11. . . Operating device

12. . . Matrix display device

126. . . control unit

127. . . Display panel

Claims (18)

A data transmission system comprising: an operating device; and a matrix display device having a display panel and a control unit, the control unit receiving a data stream and transmitting at least a portion of the data stream to the display panel An electrode, wherein when the operating device is operated on a display surface of the matrix display device, at least a portion of the data stream is coupled from the matrix display device to the operating device. The data transmission system of claim 1, wherein the display panel further comprises a matrix substrate, the matrix substrate has a substrate and a pixel matrix, the pixel matrix is disposed on one side of the substrate, the display The face is on the other side of the substrate. The data transmission system of claim 2, wherein the electrode is a separate electrode or at least one of a plurality of row electrodes or a plurality of column electrodes of the pixel matrix. The data transmission system of claim 3, wherein when the operating device is operated on the display surface, a portion of the data stream is transmitted from the individual electrode, the row electrode or the column electrode to the operating device. The data transmission system of claim 1, wherein a portion of the data stream is coupled to the operating device from the matrix display device by electromagnetic effects. The data transmission system of claim 3, wherein the control unit divides the data stream and includes a plurality of sub-data Flow, the operating device receives the sub-data streams and combines the sub-data streams. The data transmission system of claim 6, wherein the sub-stream has a first bit and a second bit, and the row electrodes have a first row electrode and at least a second row electrode, The column electrodes have a first column electrode and at least a second column electrode, and the control unit transmits the first bit to the independent electrode, or the first row electrode or the first column electrode at a first time And transmitting the second bit to the individual electrode, or the second row electrode or the second row electrode at a second time. The data transmission system of claim 6, wherein a sub-stream has at least one bit, and the control unit transmits the bit to the independent electrode or the row electrodes, or Equal column electrode. The data transmission system of claim 6, wherein a sub-stream has a first bit and a second bit, and the row electrodes or the column electrodes respectively have a first group and at least a second group, the control unit transmits the first bit to the first group and the second group respectively at a first time and the second bit at a second time. For example, in the data transmission system described in claim 4, part of the data flow system includes the start information of the data flow. For example, in the data transmission system described in claim 4, part of the data flow system includes end information of the data flow. The data transmission system of claim 1, wherein a portion of the data stream and one of the matrix display devices display data at different times on the electrodes. The data transmission system of claim 1, wherein after the data stream is partially transmitted to the operating device, the matrix display device displays at least one complete or partial frame picture. The data transmission system of claim 1, wherein at least one of the frames displayed on the display matrix device contains information to be transmitted to the operating device before the data stream begins to be transmitted. . The data transmission system of claim 1, wherein at least one of the frames displayed on the display matrix device contains the information of the data stream transmission result after the data stream is transmitted. The data transmission system of claim 1, wherein at least one of the frames displayed on the display matrix device contains an electrode region for transmitting data before the end of the data stream transmission. The data transmission system of claim 6, wherein at least one of the sub-data streams includes information identifying the matrix display device. The data transmission system of claim 6, wherein the signals of the sub-streams are AC signals without DC components.