TWI744145B - Display device, display model and image splitting device - Google Patents

Abstract

A display device includes multiple display modules, an image splitting device and an image generating circuit. The display modules are configured to be bounded, and to provide multiple detecting signals. Each of the display modules includes a first substrate, a first connector and a second connector. The first connector placed at a side of the first substrate is configured to couple another display module. The second connector placed at another side of the first substrate is configured to couple yet another display module. The image splitting device is configured to determine a number of the display modules according to a number of the received detecting signals. The image generating circuit determines a resolution of image data according to the number of the display modules, and the image splitting device splits the image data into multiple display data according to the number of the display modules.

Description

Display device, display module and image dividing device

The present disclosure relates to a display device, a display module, and an image dividing device, especially a display device, a display module, and an image dividing device that can be dynamically spliced.

In the technology of splicing displays, generally speaking, a backplane module of a corresponding size is made in advance according to the size of the final spliced display, and multiple small-size display panels are spliced and fixed on the backplane module to form a Large-size spliced display.

However, this assembly process is cumbersome and complicated, and it is not easy to replace if the small-size display panel used for splicing the display has defects or is damaged.

The present disclosure provides a display device, which includes a plurality of display modules, an image dividing device, and an image generating circuit. The display modules are used for splicing each other, and used for providing a plurality of detection signals. Each of the display modules includes a first substrate, a first connector, and a second connector. The first connector is arranged on one side of the first substrate for coupling to the other one of the display modules. The second connector is arranged on the other side of the first substrate for coupling to another one of the display modules. The image dividing device is used for judging the number of display modules according to the number of received detection signals. The image generating circuit is used to determine the resolution of the image data provided to the image dividing device according to the number of display modules, wherein the image dividing device divides the image data into a plurality of display data according to the number of display modules to provide to the display modules respectively .

The present disclosure provides a display module, which is used for splicing with an image dividing device to form a spliced display device, and for providing a detection signal. The display module includes a first substrate, a first connector, a second connector, and a detection pin. The first connector is arranged on one side of the first substrate for coupling with the image dividing device. The second connector is arranged on the other side of the first substrate and used for coupling to the first connector through a plurality of transmission lines. The detection pin is coupled to one of the transmission lines to provide a detection signal. The image dividing device is used for judging the number of display modules on the spliced display device according to the number of received detection signals.

The present disclosure provides an image dividing device, which is used for splicing on a plurality of display modules and used for coupling to an image generating circuit to form a spliced display device. The display module is used for providing a plurality of detection signals, and each of the display modules includes a first connector and a second connector. The first connector is arranged on one side of the first substrate for coupling to the other one of the display modules. The second connector is arranged on the other side of the first substrate for coupling to another one of the display modules. The image dividing device is used to perform the following operations: judging the number of display modules according to the number of received detection signals, wherein the image generating circuit is used to determine the resolution of the image data provided to the image dividing device according to the number of display modules; And according to the number of display modules, the image data is divided into a plurality of display data to be provided to the display modules respectively.

One of the advantages of the above-mentioned display device, display module, and image dividing device is that the display panels can be spliced in real time to achieve the effect of allowing the user to freely determine the size of the display.

The following is a detailed description of the embodiments in conjunction with the accompanying drawings. However, the specific embodiments described are only used to explain the present invention and are not used to limit the present invention. The description of structural operations is not used to limit the order of its execution. The recombined structure of the components produces devices with equal effects, which are all covered by the disclosure of the present invention.

Unless otherwise specified, the terms used in the entire specification and the scope of the patent application usually have the usual meaning of each term used in this field, in the content disclosed here, and in the special content. Some terms used to describe the present disclosure will be discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance on the description of the present disclosure.

FIG. 1 is a simplified functional block diagram of the display device 100 according to some embodiments of the present disclosure. As shown in FIG. 1, the display device 100 includes a plurality of display modules 110-1 to 110-4, a power supply device 120, an image dividing device 130, and an image generating circuit 140. For the convenience of description, the following will use the display module 110 to refer to an unspecified one of the display modules 110-1 to 110-4. The display modules 110-1 to 110-4 are used to join each other. The power supply device 120 and the image dividing device 130 are disposed on the substrate 10. The display module 110 can be coupled to the power supply device 120 and the image dividing device 130 by splicing with the substrate 10.

In some embodiments, when one or more display modules 110 are spliced with the substrate 10, the power supply device 120 on the substrate 10 will enable the spliced display modules 110, so that the display modules 110 generate corresponding one or more The detection signal VDD is sent to the image dividing device 130. The image dividing device 130 can determine the number of display modules 110 to be spliced with the substrate 10 according to the number of the received detection signal VDD.

For example, when the display module 110-1, the display module 110-2, the display module 110-3, and the display module 110-4 are connected to each other and connected to the substrate 10, the display modules 110-1 to 110 -4 will each generate 1 (that is, a total of 4) detection signals VDD, so that the image dividing device 130 can determine the number of splicing display modules 110-1 to 110-4 according to the above 4 detection signals VDD.

In some embodiments, the image generating circuit 140 is used to determine the resolution of the image data VD provided to the image dividing device 130 according to the number of the display modules 110, and the image dividing device 130 then divides the above-mentioned image data according to the number of the display modules 110 The VD is divided into a plurality of display data DATA to be provided to the display module 110 respectively.

For example, if the resolution of each display module 110 is 320×240, and the image dividing device 130 respectively determines in the first direction (that is, the horizontal X-axis direction) and the second direction (that is, the vertical direction). In the Y axis direction), there are two display modules 110 that are spliced with each other, and the image generating circuit 140 generates image data VD with a resolution of 640×480 according to the number of display modules 110 described above (ie, 2×2), and the image is divided The device 130 then divides the 640×480 resolution image data VD into 4 pieces of display data DATA according to the number of display modules 110 (ie, 2×2), and sends them to the above-mentioned 4 display modules 110 respectively.

In some embodiments, the image dividing device 130 can be implemented by a Field Programmable Gate Array (FPGA), and the image generating circuit 140 can be implemented by a Scaler IC. In addition, the number of modules 110 shown in Figure 1 is only an exemplary embodiment, and is not intended to limit the actual implementation of the present disclosure. In some embodiments, the number of display modules 110 can be adjusted according to actual design requirements.

FIG. 2 is a three-dimensional schematic diagram of the display module 110 according to some embodiments of the present disclosure. As shown in FIG. 2, the display module 110 includes a substrate 20, a first connector 111, a second connector 112, a display panel 113 and a driving circuit 114. The first connector 111 is disposed on one side of the substrate 20 for coupling to another display module 110. The second connector 112 is disposed on the other side of the substrate 20 for coupling to another display module 110. The display panel 113 is stacked on the substrate 20. The driving circuit 114 is used to drive the display panel 113 according to the received display data DATA. In some embodiments, the driving circuit 114 may be implemented by a timing controller (TCON). A more detailed operation of the display module 110 will be described in conjunction with FIGS. 3A and 3B described later.

FIG. 3 is a schematic diagram of the display module 110 according to an embodiment of the present disclosure. The display module 110 includes a plurality of transmission lines R[1]~R[n] and a detection pin 1101 for outputting a detection signal VDD. The aforementioned transmission lines R[1] to R[n] are used to couple the first connector 111 and the second connector 112. The detection pin 1101 is coupled between one of the transmission lines R[1]~R[n] and the voltage generating circuit (not shown) of the display module 110. The detection pin 1101 is used to receive the detection signal VDD from the voltage generating circuit and output the detection signal VDD to one of the transmission lines R[1]~R[n].

In some embodiments, the detection pins 1101 of different display modules 110 are coupled to different transmission lines. For example, the detection pin 1101 of the display module 110-1 is coupled to the transmission line R[1]; the detection pin 1101 of the display module 110-2 is coupled to the transmission line R[2]; The detection pin 1101 of the group 110-3 is coupled to the transmission line R[3], and so on.

FIG. 4 is a schematic diagram of the splicing process according to some embodiments of the present disclosure. As shown in FIG. 4, the substrate 10 further includes a main connector 211 for coupling the display module 110, the power supply device 120 and the image dividing device 130. When the substrate 10 and the substrate 20 are spliced with each other, the main connector 211 on the substrate 10 will be coupled to the first connector 111 of the display module 110. In this way, the power supply device 120 can enable the spliced display module 110, so that the detection pin 1101 receives the detection signal VDD, and the detection signal VDD passes through one of the transmission lines R[1]~R[n] One (for example, the transmission line R[1]) is sent to the image dividing device 130. As mentioned above, the detection pins 1101 of different display modules 110 are coupled to different transmission lines, so the image dividing device 130 is connected to the transmission line R[1] through the multiple receiving pins on the main connector 211, respectively. R[n], to receive the detection signal VDD of the multiple display modules 110 respectively through multiple receiving pins.

In some embodiments, the second connector 112 of the display module 110 can continue to be coupled to another display module 110. For example, the display module 110-1 of FIG. 1 can use the first connector 111 and the second connector 112 to be coupled to the substrate 10 and the display module 110-2, respectively, and the second display module 110-2 The connector 112 can continue to be coupled to other display modules 110 (not shown) so that the width of the display device 100 extends toward the right in the first figure, and so on.

In some embodiments, during the process of splicing or removing the display module 110, that is, when the number of detection signals VDD received by the image dividing device 130 changes, the image generating circuit 140 will respond according to the image dividing device 130 The number of detection signals VDD received at present will regenerate the image data VD with the resolution corresponding to the number of currently spliced display modules 110, and the image dividing device 130 will send a synchronization signal to all spliced display modules 110, so that The pictures of all the spliced display modules 110 are synchronized. Therefore, during the process of splicing or removing the display module 110, other display modules 110 on the display device 100 will not be affected.

In some embodiments, the aforementioned synchronization signal may be a vertical synchronization signal (VSYNC) or a horizontal synchronization signal (HSYNC).

In some embodiments, the main connector 211, the first connector 111, and the second connector 112 are magnetic connectors. The substrates 10 and 20 may be printed circuit boards (PCBA) or flexible printed circuit boards (FPC).

FIG. 5 is a schematic diagram of a splicing display device 500 according to an embodiment of the present disclosure. The spliced display device 500 includes a plurality of display modules 110-1 to 110-4, a power supply device 120 (not shown), an image dividing device 130 and an image generating circuit 140. The image dividing device 130 is coupled to the first part 51 and the second part 52 of the main connector 211. The first part 51 and the second part 52 of the main connector 211 are respectively used to couple display modules 110 in different rows. For example, the first portion 51 of the main connector 211 is coupled to the display modules 110-1 and 110-2 in the first row, and the second portion 52 is coupled to the display modules 110-3 and 110-4 in the second row.

In some embodiments, the image splitting device 130 can determine the number of detection signals VDD received by the first part 51 and the second part 52 of the main connector 211, respectively, to determine which parts are coupled to the first part 51 and the second part 52. Display the number of modules 110.

For example, if the image dividing device 130 receives two sets of detection signals VDD from the first part 51 of the main connector 211, it also receives two sets of detection signals VDD from the second part 52. At this time, the image dividing device 130 can determine that there are two display modules 110 coupled to the first part 51 of the main connector 211, and two display modules 110 are coupled to the second part 52 of the main connector 211. That is, the number of display modules 110 detected by the image dividing device 130 in the first direction (that is, the horizontal X-axis direction) is less than or equal to 2, and in the second direction (that is, the vertical Y-axis direction) The number of detected display modules 110 is also less than or equal to two.

In this way, the image generating circuit 140 outputs the image data VD with a resolution twice the resolution of the display module 110 in the first direction and in the second direction.

Then, the image dividing device 130 divides the above-mentioned image data VD into four display data DATA1, DATA2, DATA3, and DATA4, and transmits the display data DATA1 and DATA2 to the display modules 110-1, 110- in the first row, respectively. 2. Send the display data DATA3 and DATA4 to the display modules 110-3 and 110-4 in the second row.

It is worth noting that the division of the main connector 211 into the first part 51 and the second part 52 in FIG. 5 is only an example, and is not intended to limit the actual implementation of the present disclosure. In some embodiments, the number of parts of the main connector 211 can be adjusted according to actual design requirements.

FIG. 6 is a schematic diagram of a splicing display device 600 according to another embodiment of the present disclosure. The difference between the spliced display device 600 and the spliced display device 500 in FIG. 5 is that the spliced display device 600 includes two image dividing devices 131 and 132, which are used to determine the number of display modules 110 in the first row and the second row, respectively. .

In other words, the image splitting device 131 will determine that two display modules 110-1 and 110-2 are coupled to the first row based on the received 2 sets of detection signals VDD, and the image splitting device 132 will determine based on the received two sets of detection signals VDD. The two sets of detection signals VDD determine that two display modules 110-3 and 110-4 are coupled in the second row.

In some embodiments, the image generating circuit 140 generates a corresponding amount of image data according to the number of image dividing devices 130. For example, the image generating circuit 140 generates the corresponding image data VD1 and the image data VD2 according to the upper half and the lower half of the display screen, respectively, and outputs the corresponding image data VD1 and the image data VD2 to the image dividing devices 131 and 132, respectively.

Then, the image dividing device 131 divides the above-mentioned image data VD1 into two display data DATA1, DATA2, and transmits them to the display modules 110-1, 110-2; the image dividing device 132 divides the above-mentioned image data VD2 into Two display data DATA3 and DATA4 are sent to the display modules 110-3 and 110-4.

It should be noted that the number of image dividing devices in Figure 6 is only an example, and is not used to limit the actual implementation of the present disclosure. In some embodiments, the number of image dividing devices 130 can be adjusted according to actual design requirements.

Although the content of this disclosure has been disclosed in the above embodiments, it is not intended to limit the content of this disclosure. Anyone with ordinary knowledge in the field can make various changes and modifications without departing from the spirit and scope of this disclosure. Therefore, the protection scope of this disclosure shall be subject to those defined by the attached patent application scope.

100: display device

110: display module

120: power supply unit

130, 131, 132: Image segmentation device

140: image generating circuit

10, 20: substrate

110-1~110-4: display module

111: first connector

112: second connector

211: main connector

113: display panel

114: drive circuit

VDD: detection signal

VD, VD1, VD2: image data

DATA: display data

DATA1: display data

DATA2: display data

DATA3: display data

DATA4: display data

R[1]~R[n]: Transmission line

1101: Detect pin position display device

51: The first part of the main connector

52: The second part of the main connector

FIG. 1 is a simplified functional block diagram of the display device according to some embodiments of the present disclosure. FIG. 2 is a three-dimensional schematic diagram of a display module according to some embodiments of the present disclosure. FIG. 3 is a schematic diagram of a display module according to an embodiment of the present disclosure. FIG. 4 is a schematic diagram of the splicing process of the display device according to some embodiments of the present disclosure. FIG. 5 is a schematic diagram of a splicing display device according to an embodiment of the present disclosure. FIG. 6 is a schematic diagram of a splicing display device according to another embodiment of the present disclosure.

100: display device

110-1~110-4: display module

120: power supply unit

130: Image dividing device

140: image generating circuit

10: substrate

VDD: detection signal

VD: Video data

DATA: display data

Claims (10)

A display device including: A plurality of display modules are used to join each other and provide a plurality of detection signals. Each of the display modules includes: A first substrate; A first connector disposed on one side of the first substrate for coupling to the other one of the display modules; and A second connector arranged on the other side of the first substrate for coupling to another one of the display modules; An image dividing device for judging the number of the display modules according to the number of the received detection signals; and An image generating circuit for determining the resolution of an image data provided to the image dividing device according to the number of the display modules, wherein the image dividing device divides the image data into a plurality of numbers according to the number of the display modules Each display data is provided to the display modules respectively. The display device according to claim 1, wherein each of the display modules further includes: A detection pin for providing one of the detection signals; and N transmission lines, the N transmission lines are used to couple the first connector and the second connector, wherein the detection pin of a first display module of the display modules is coupled to the first display The Nth transmission line of the N transmission lines of the module, and the detection pin of a second display module of the display modules is coupled to the Nth transmission line of the N transmission lines of the second display module. N different transmission lines. The display device according to claim 1, further comprising a second substrate, wherein the image dividing device is disposed on the second substrate, and the second substrate includes a main connector for coupling to the second substrate A connector and the image dividing device. The display device according to claim 3, wherein the main connector, the first connector and the second connector are magnetic connectors. The display device according to claim 1, wherein when the number of the detection signals received by the image dividing device changes, the image dividing device is further used to transmit a synchronization signal to the display modules, so that the The screens of these display modules are synchronized. A display module for splicing on an image dividing device to form a spliced display device and for providing a detection signal, wherein the display module includes: A first substrate; A first connector arranged on one side of the first substrate for coupling to the image dividing device; A second connector disposed on the other side of the first substrate for coupling to the first connector through a plurality of transmission lines; and A detection pin is coupled to one of the transmission lines to provide the detection signal, wherein the image dividing device is used to determine the display mode on the splicing display device according to the quantity of the detection signal received The number of groups. The display module according to claim 6, wherein the display module is used to receive one of a plurality of display data, and an image generating circuit is used to determine the number of the display modules on the spliced display device to provide The resolution of an image data of the image dividing device, and the image dividing device divides the image data into the display data according to the number of the display modules. An image dividing device for splicing on a plurality of display modules and for coupling an image generating circuit to form a spliced display device, wherein the display modules are used for providing a plurality of detection signals, and the display modules Each of the display modules includes a first connector and a second connector, wherein the first connector is disposed on one side of a first substrate for coupling to the other of the display modules, the first connector Two connectors are arranged on the other side of the first substrate for coupling to another one of the display modules, wherein the image dividing device is used to perform the following operations: Determining the number of the display modules according to the number of the received detection signals, wherein the image generating circuit is used for determining the resolution of an image data provided to the image dividing device according to the number of the display modules; as well as According to the number of the display modules, the image data is divided into a plurality of display data to be provided to the display modules respectively. The image dividing device according to claim 8, wherein the image dividing device includes a main connector, and the main connector includes a plurality of receiving pins, and the receiving pins are respectively used for receiving the detection signals. The image segmentation device according to claim 8, wherein when the number of the detection signals received by the image segmentation device changes, the image segmentation device is further used to synchronize the images of the display modules.

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