CN113808495B

CN113808495B - Display device, display module, and image dividing device

Info

Publication number: CN113808495B
Application number: CN202111115729.XA
Authority: CN
Inventors: 陈有毅; 黄正义
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2020-12-23
Filing date: 2021-09-23
Publication date: 2022-10-28
Anticipated expiration: 2041-09-23
Also published as: TWI744145B; TW202226814A; CN113808495A

Abstract

The invention provides a display device, a display module and an image segmentation device. The display device comprises a plurality of display modules, an image segmentation device and an image generation circuit. The display modules are used for being spliced with each other and 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 disposed on one side of the first substrate and coupled to another one of the display modules. And the second connector is arranged on the other side of the first substrate and is used for being coupled with another one of the display modules. The image segmentation device is used for judging the number of the display modules according to the number of the received detection signals. The image generating circuit determines the resolution of the provided image data according to the number of the display modules, and the image dividing device divides the image data into a plurality of display data according to the number of the display modules.

Description

Display device, display module, and image dividing device

Technical Field

The present disclosure relates to a display device, a display module, and an image dividing device, and more particularly, to a display device, a display module, and an image dividing device capable of being dynamically tiled.

Background

In the art of tiled displays, generally, a backplane module with a corresponding size is fabricated in advance according to the size of the final tiled display, and a plurality of small-sized display panels are fixed on the backplane module by being tiled with each other, so as to form a large-sized tiled display.

However, such an assembly process is complicated and difficult to replace if the small-sized display panel used for the tiled display has defects or is damaged.

Disclosure of Invention

The present disclosure is directed to a display device, a display module and an image segmentation apparatus, so as to solve at least one of the above problems.

The disclosure provides a display device comprising a plurality of display modules, an image segmentation device and an image generation circuit. The display modules are used for being spliced with each other and 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 disposed on one side of the first substrate and coupled to another one of the display modules. And the second connector is arranged on the other side of the first substrate and is used for being coupled with another display module. The image segmentation device is used for judging the number of the display modules according to the number of the received detection signals. The image generating circuit is used for determining the resolution of the 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 display data according to the number of the display modules and provides the display data to the display modules respectively.

The present disclosure provides a display module for stitching to an image segmentation device to form a tiled display device, and for providing a detection signal. The display module comprises a first substrate, a first connector, a second connector and a detection pin. The first connector is disposed on one side of the first substrate and coupled to the image dividing device. The second connector is disposed on the other side of the first substrate and is coupled to the first connector through a plurality of transmission lines. The detection pin is coupled to one of the transmission lines for providing a detection signal. The image segmentation device is used for judging the number of the display modules on the tiled display device according to the number of the received detection signals.

The present disclosure provides an image segmentation apparatus for stitching to a plurality of display modules and for coupling to an image generation circuit to form a tiled display apparatus. The display modules are used for providing a plurality of detection signals, and each display module comprises a first connector and a second connector. The first connector is disposed on one side of the first substrate and coupled to another one of the display modules. The second connector is disposed on the other side of the first substrate and is coupled to another one of the display modules. The image segmentation device is used for executing the following operations: judging the number of display modules according to the number of the received detection signals, wherein the image generation circuit is used for determining the resolution of the image data provided to the image segmentation device according to the number of the display modules; and dividing the image data into a plurality of display data according to the number of the display modules to be respectively provided to the display modules.

One of the advantages of the display device, the display module and the image segmentation device is that the display panel can be spliced in real time to achieve the effect that a user can freely determine the size of the display.

Drawings

Fig. 1 is a simplified functional block diagram of a 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 disclosure.

Fig. 4 is a schematic diagram of a display device stitching process shown in accordance with some embodiments of the present disclosure.

Fig. 5 is a schematic diagram of a tiled display device according to an embodiment of the present disclosure.

Fig. 6 is a schematic diagram of a tiled display device according to another embodiment of the present disclosure.

The reference numbers are as follows:

100 display device

110 display module

120 power supply device

130,131,132 image segmentation device

140 image generation circuit

10,20 base plate

110-1 to 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

R1-Rn transmission line

1101, detecting the pin position

500,600 tiled display device

51 first part of the Main connector

Second part of the main connector

Detailed Description

The following detailed description of the embodiments is provided in conjunction with the appended drawings, but the embodiments described are merely illustrative and not restrictive of the scope of the invention, and the description of the structural operations is not intended to limit the order of execution, nor is any structure resulting from a subcombination of elements, nor is it intended to cover all equivalent structures encompassed by the present disclosure.

The terms (terms) used throughout the specification and claims have the ordinary meaning as commonly understood in each term used in the art, in the disclosure herein, and in the specific context, unless otherwise indicated. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

Fig. 1 is a simplified functional block diagram of a 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 convenience of description, the display module 110 will hereinafter 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 be spliced to each other. The power supply device 120 and the image dividing device 130 are disposed on the substrate 10. The display module 110 may be coupled to the power supply device 120 and the image dividing device 130 by being spliced 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 enables the spliced display modules 110, so that the display modules 110 generate the corresponding one or more detection signals VDD to the image segmentation device 130. The image dividing apparatus 130 can determine the number of the display modules 110 connected to the substrate 10 according to the number of the received detection signals VDD.

For example, when the display modules 110-1, 110-2, 110-3 and 110-4 are connected to each other and the substrate 10, the display modules 110-1 to 110-4 respectively generate 1 (i.e. 4) detection signals VDD, so that the image dividing apparatus 130 can determine the number of the tiled display modules 110-1 to 110-4 according to the 4 detection signals VDD.

In some embodiments, the image generation circuit 140 is configured to determine the resolution of the image DATA VD provided to the image segmentation apparatus 130 according to the number of the display modules 110, and the image segmentation apparatus 130 segments the image DATA VD into a plurality of display DATA according to the number of the display modules 110 to provide the display DATA to the display modules 110 respectively.

For example, if the resolution of each display module 110 is 320 × 240, and the image splitting device 130 respectively determines that 2 display modules 110 are spliced together in the first direction (i.e., the horizontal X-axis direction) and the second direction (i.e., the vertical Y-axis direction), the image generating circuit 140 generates image DATA VD with a resolution of 640 × 480 according to the number of the display modules 110 (i.e., 2 × 2), and the image splitting device 130 splits the image DATA VD with a resolution of 640 × 480 into 4 display DATA according to the number of the display modules 110 (i.e., 2 × 2), and transmits the display DATA to the 4 display modules 110.

In some embodiments, the image segmentation device 130 may be implemented by a Field Programmable Gate Array (FPGA), and the image generation circuit 140 may be implemented by a Scaler IC. In addition, the number of display modules 110 in fig. 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 may be adjusted according to actual design requirements.

Fig. 2 is a three-dimensional schematic diagram of a 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 at one side of the substrate 20 for coupling with another display module 110. The second connector 112 is disposed on the other side of the substrate 20 for coupling with another display module 110. The display panel 113 is stacked on the substrate 20. The driving circuit 114 is used for driving the display panel 113 according to the received display DATA. In some embodiments, the driving circuit 114 may be implemented by a Timing Controller (TCON). The operation of the display module 110 will be described in more detail with reference to fig. 3A and 3B.

Fig. 3 is a schematic diagram of the display module 110 according to an embodiment of the disclosure. The display module 110 includes a plurality of transmission lines R1-R n and a detection pin 1101 for outputting a detection signal VDD. The transmission lines R1-Rn 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 R1-R n and a voltage generation circuit (not shown) of the display module 110. The detection pin 1101 is used for receiving a detection signal VDD from the voltage generation circuit and outputting the detection signal VDD to one of the transmission lines R [1] to 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 R1; the detection pin 1101 of the display module 110-2 is coupled to the transmission line R2; the detection pin 1101 of the display module 110-3 is coupled to the transmission line R3, and so on.

Fig. 4 is a schematic diagram of a stitching process shown in accordance with 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 device 120 and the image dividing device 130. When the substrate 10 and the substrate 20 are assembled with each other, the main connector 211 on the substrate 10 is coupled to the first connector 111 of the display module 110. Thus, the power device 120 enables the tiled display module 110 such that the detection pin 1101 receives the detection signal VDD, and the detection signal VDD is transmitted to the image segmentation device 130 through one of the transmission lines R1 to n (e.g., the transmission line R1). As mentioned above, the detecting pins 1101 of different display modules 110 are coupled to different transmission lines, so that the image splitting apparatus 130 is respectively connected to the transmission lines R [1] to [ n ] through the receiving pins of the main connector 211 to respectively receive the detecting signals VDD of the display modules 110 through the receiving pins.

In some embodiments, the second connector 112 of the display module 110 may continue to couple to another display module 110. For example, the display module 110-1 of fig. 1 may be coupled to the substrate 10 and the display module 110-2 by the first connector 111 and the second connector 112, respectively, and the second connector 112 of the second display module 110-2 may be further coupled to other display modules 110 (not shown) to extend the width of the display device 100 to the right of fig. 1, and so on.

In some embodiments, during the process of splicing or removing the display modules 110, that is, when the number of the detection signals VDD received by the image splitting device 130 changes, the image generation circuit 140 regenerates the image data VD having a resolution corresponding to the number of the currently spliced display modules 110 according to the number of the detection signals VDD currently received by the image splitting device 130, and the image splitting device 130 transmits a synchronization signal to all the spliced display modules 110, so that the frames 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 are not affected.

In some embodiments, the 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 magnetically-attractable connectors. The

substrates

10 and 20 may be Printed Circuit Board (PCBA) or Flexible Printed Circuit Board (FPC).

Fig. 5 is a schematic diagram of a tiled display apparatus 500 according to an embodiment of the disclosure. The tiled display device 500 includes a plurality of display modules 110-1 to 110-4, a power supply device 120 (not shown), an image splitting device 130, and an image generating circuit 140. The image splitting device 130 couples the first portion 51 and the second portion 52 of the main connector 211. The first portion 51 and the second portion 52 of the main connector 211 are respectively used for coupling with the display modules 110 in different rows. For example, the first portion 51 of the main connector 211 couples to display modules 110-1, 110-2 of a first column, and the second portion 52 couples to display modules 110-3, 110-4 of a second column.

In some embodiments, the image segmentation apparatus 130 may determine the number of the display modules 110 coupled to the first portion 51 and the second portion 52 from the number of the detection signals VDD received by the first portion 51 and the second portion 52 of the main connector 211, respectively.

For example, if the image splitting apparatus 130 receives 2 sets of the detection signals VDD from the first part 51 of the main connector 211, it also receives 2 sets of the detection signals VDD from the second part 52. At this time, the image splitting apparatus 130 can determine that two display modules 110 are coupled to the first portion 51 of the main connector 211 and two display modules 110 are coupled to the second portion 52 of the main connector 211. That is, the image splitting apparatus 130 detects the number of display modules 110 in the first direction (that is, the lateral X-axis direction) to be 2 or less, and detects the number of display modules 110 in the second direction (that is, the longitudinal Y-axis direction) to be 2 or less.

In this way, the image generating circuit 140 outputs the image data VD with a resolution 2 times that of the display module 110 in the first direction and the second direction.

Then, the image segmentation device 130 segments the image DATA VD into 4 display DATA1, DATA2, DATA3, and DATA4, and transmits the display DATA1 and DATA2 to the display modules 110-1 and 110-2 in the first row, and transmits the display DATA3 and DATA4 to the display modules 110-3 and 110-4 in the second row, respectively.

It should be noted that the division of the main connector 211 into the first portion 51 and the second portion 52 in fig. 5 is only an example and is not intended to limit the practical implementation of the present disclosure. In some embodiments, the number of portions of the main connector 211 may be adjusted according to actual design requirements.

Fig. 6 is a schematic diagram of a tiled display apparatus 600 according to another embodiment of the present disclosure. The tiled display apparatus 600 differs from the tiled display apparatus 500 of fig. 5 in that the tiled display apparatus 600 includes two image splitting devices 131 and 132 for determining the number of display modules 110 in the first row and the second row, respectively.

That is, the image segmentation apparatus 131 determines that 2 display modules 110-1 and 110-2 are coupled to the first row according to the received 2 sets of the detection signal VDD, and the image segmentation apparatus 132 determines that 2 display modules 110-3 and 110-4 are coupled to the second row according to the received 2 sets of the detection signal VDD.

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

Then, the image dividing device 131 divides the image DATA VD1 into 2 display DATA1 and DATA2, and transmits the display DATA1 and DATA2 to the display modules 110-1 and 110-2; the image dividing device 132 divides the image DATA VD2 into 2 display DATA3 and DATA4, and transmits the display DATA3 and DATA4 to the display modules 110-3 and 110-4.

It is noted that the number of image segmentation means in fig. 6 is only an example and is not intended to limit the practical implementation of the present disclosure. In some embodiments, the number of image segmentation devices 130 may be adjusted according to actual design requirements.

Although the present disclosure has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the present disclosure, and therefore, the scope of the present disclosure should be determined only by the appended claims.

Claims

1. A display device, comprising:

a plurality of display modules for being tiled with each other and for providing a plurality of detection signals, wherein each of the plurality of display modules comprises:

a first substrate;

a first connector disposed on one side of the first substrate and coupled to another one of the display modules; and

a second connector disposed on the other side of the first substrate and coupled to another one of the display modules;

the image segmentation device is used for judging the number of the display modules according to the number of the received detection signals; and

an image generating circuit for determining a resolution of image data provided to the image segmentation device according to a number of the display modules, wherein the image segmentation device segments the image data into a plurality of display data according to the number of the display modules to be provided to the display modules respectively;

wherein each of the plurality of display modules further comprises:

a detection pin for providing one of a plurality of detection signals; and

the display module comprises a first connector, a second connector, a plurality of display modules and a plurality of detection pins, wherein the first connector and the second connector are used for connecting the first connector and the second connector in a coupling mode, the detection pins of a first display module in the plurality of display modules are connected with the Nth transmission line in the N transmission lines of the first display module in a coupling mode, and the detection pins of a second display module in the plurality of display modules are connected with the N transmission lines of the second display module in a coupling mode and are different from the Nth transmission line.

2. The display device of claim 1, further comprising a second substrate, wherein the image-dividing device is disposed on the second substrate, and the second substrate comprises a main connector for coupling the first connector and the image-dividing device.

3. The display device of claim 2, wherein the main connector, the first connector and the second connector are magnetically attracted connectors.

4. The display apparatus according to claim 1, wherein when the number of the detection signals received by the image segmentation apparatus changes, the image segmentation apparatus is further configured to transmit a synchronization signal to the display modules so that the frames of the display modules are synchronized.

5. A display module for splicing to an image splitting device to form a spliced display device and for providing a detection signal, wherein the display module comprises:

a first substrate;

a first connector disposed on one side of the first substrate for coupling with the image dividing device;

a second connector disposed on the other side of the first substrate and coupled to the first connector via a plurality of transmission lines; and

and the image segmentation device is used for judging the number of the display modules on the splicing display device according to the number of the received detection signals.

6. The display module of claim 5, wherein the display module is configured to receive one of a plurality of display data, an image generation circuit is configured to determine a resolution of an image data provided to the image segmentation device according to a number of the display modules on the tiled display device, and the image segmentation device segments the image data into a plurality of the display data according to the number of the display modules.

7. An image splitting device for being spliced to a plurality of display modules and for being coupled to an image generating circuit to form a spliced display device, wherein the plurality of display modules are used for providing a plurality of detection signals, and each of the plurality of display modules comprises a first connector and a second connector, wherein the first connector is arranged on one side of a first substrate and is used for being coupled to another one of the plurality of display modules, and the second connector is arranged on the other side of the first substrate and is used for being coupled to another one of the plurality of display modules, wherein the image splitting device is used for executing the following operations:

determining the number of the plurality of display modules according to the number of the received plurality of detection signals, wherein the image generation circuit is used for determining the resolution of image data provided to the image segmentation device according to the number of the plurality of display modules; and

the image data is divided into a plurality of display data according to the number of the display modules to be respectively provided to the display modules.

8. The image segmentation apparatus according to claim 7, wherein the image segmentation apparatus comprises a main connector, the main connector comprises a plurality of receiving pins, and the receiving pins are respectively used for receiving a plurality of the detection signals.

9. The image segmentation apparatus according to claim 7, wherein the image segmentation apparatus is further configured to synchronize frames of the plurality of display modules when the number of the detection signals received by the image segmentation apparatus varies.