Display device

Abstract

[Tasks to be solved] To provide a transparent display device with high resolution at a low price. [Solution] A display device 1 comprises two transparent display sections 3A, 3B, and a character unit 2 that transmits a video signal to each transparent display section 3A, 3B. Each transparent display section 3A, 3B comprises a transparent film 4, a plurality of light-emitting elements 5 arranged in a grid pattern on the transparent film 4, and a wiring section 6. The transparent film 4 is square in shape, and the wiring section 6 is attached to an edge forming one side of the transparent film 4. The two transparent display sections 3A, 3B are configured in the display device 1 such that the transparent films 4 overlap each other, while the wiring sections 6 do not overlap each other. In the display device 1 thus configured, the plurality of light-emitting elements 5 are arranged in a staggered pattern.The character unit 2 splits a video signal from a display target into two to generate video signals A and B, transmits video signal A to the transparent display section 3A, and inverts video signal B by 180 degrees to transmit it to the single transparent display section 3B.

Description

[TECHNICAL FIELD]

[0001] The present invention relates to a display device. [BACKGROUND TECHNOLOGY]

[0002] In recent years, various new display technologies using a transparent display device have been proposed. For example, patent documents 1 and 2 disclose a technology for affixing a transparent display device to the glass of an automobile and for displaying vehicle driving information through this transparent display device.

[0003] OLED (organic light-emitting diode display), as an example of a transparent display device, has high resolution but the disadvantage of a high price. Accordingly, the inventors of the present application investigated display structures using inexpensive transparent display devices and arrived at the design described in Fig. The display structure shown in section 4 is reached.

[0004] One in Fig. The display structure shown in Figure 4 is a structure created by bonding a transparent display section 3 to the glass 200. The transparent display section 3 is configured in which a plurality of LEDs (light-emitting diodes) 5 are arranged in a grid pattern on a transparent film 4, and a wiring section 6 is attached to an edge of the transparent film 4. Furthermore, in the case of OLEDs, it is not easy to change their dimensions due to the structure's characteristics, whereas the transparent display section 3 has the advantage of being easily cut.

[0005] The transparent section 3 in Fig. Option 4 has the advantages described above, however, the resolution is low, so that in the case of an adhesive application on a windshield of the vehicle, and due to the small distance, there is a disadvantage that the letters and other information are not clearly visible from the driver's seat, and there is room for improvement. [CITING LIST][Patent Documents] [Patent document 1] WO 2020 / 050062 A1 [Patent Document 2] JP 2025-122981 A [SUMMARY OF THE INVENTION][Technical Task]

[0006] One objective of the present invention is therefore to provide a transparent display device with high resolution at a low price. [Solution to the task]

[0007] The present invention is a display device comprising a plurality of transparent display sections and a character unit for transmitting video signals to each transparent display section, characterized in that each transparent display section comprises a transparent film, a plurality of light-emitting elements arranged on the transparent film, and a wiring section attached to an edge of the transparent film, the transparent films overlapping each other in the plurality of transparent display sections, with one wiring section not overlapping another, and the character unit generating a video signal assigned to each transparent display section based on a video signal from a display target, and transmitting the video signal to each transparent display section. [Effects of the invention]

[0008] According to the present invention, it is possible to provide a transparent display device with high resolution at a low price. [BRIEF DESCRIPTION OF THE DRAWINGS] Fig. Figure 1 is a schematic configuration view showing a display device according to a first embodiment of the present invention. Fig. 2 is a view that describes a manufacturing process for the display device of Fig. 1 describes. Fig. Figure 3 is a schematic configuration view showing a display device according to a second embodiment of the present invention. Fig. Figure 4 is a view that shows a display structure of a reference example. [DESCRIPTION OF EXECUTION FORMS]

[0009] A “display device” according to a first embodiment of the present invention is referred to as Fig. 1-2 described.

[0010] One in Fig. 1, Fig. The display device 1 shown in Figure 2 comprises a plurality of transparent display sections 3A, 3B and a character unit 2 for transmitting video signals to each transparent display section 3A, 3B. In the present example, two transparent display sections 3A, 3B are used. These transparent display sections 3A, 3B have the same configuration and the same dimensions.

[0011] Each transparent display section 3A, 3B contains a transparent film 4, a plurality of light-emitting elements 5 arranged on the transparent film 4, and a wiring section 6 attached to an edge of the transparent film 4.

[0012] The transparent film 4 is made of an insulating resin, and a pattern is formed that connects each light-emitting element 5 and the wiring section 6 through a transparent conductive material. The transparent film 4 has a rectangular shape, and the wiring section 6 is attached to an edge that forms one side of the transparent film 4.

[0013] Wiring section 6 contains a drive circuit for the majority of light-emitting elements 5 and a connector for connecting electrical leads to the drive circuit. It should be noted that wiring section 6 does not necessarily have to contain the drive circuit, and the drive circuit may be located elsewhere.

[0014] Each of the transparent display sections 3A, 3B has a plurality of light-emitting elements 5 arranged in a grid pattern. In the present example, a full-color LED with three LED elements of the colors red, green, and blue, mounted in a housing, is used as the light-emitting element 5, but a bicolor LED or a single-color LED can also be used.

[0015] Also in Fig. 1, Fig. 2. The light-emitting element 5 provided in the transparent display section 3A is represented by a triangle, and the light-emitting element 5 provided in the transparent display section 3B is represented by a square. The difference in representation serves to distinguish between the light-emitting elements 5 provided in the transparent display section 3A and the light-emitting elements 5 provided in the transparent display section 3B; in fact, the light-emitting elements 5 of the transparent display section 3A and the light-emitting elements 5 of the transparent display section 3B have the same configuration.

[0016] The two transparent display sections 3A, 3B arrange the display device 1, with the transparent films 4 overlapping each other, while one wiring section 6 does not overlap the other wiring section 6. In the present example with respect to the two transparent display sections 3A, 3B, the transparent films 4 overlap each other such that the wiring sections 6 face each other in an up-down direction of the paper, while the transparent films 4 are diagonally offset from each other. Since the respective light-emitting elements 5 are offset by this overlapping manner of the transparent display sections 3A, 3B, the display device 1 has the majority of light-emitting elements 5 in an offset pattern.

[0017] The drawing unit 2 generates video signals A and B from the video signal of the display target, each corresponding to one of the transparent display sections 3A and 3B, and transmits the video signals A and B to each of the transparent display sections 3A and 3B. In this example, the drawing unit 2 splits the video signal of the display target into two parts to generate the video signals A and B, transmits video signal A to transparent display section 3A, and inverts video signal B by 180 degrees to transmit it to the other transparent display section 3B. In this way, the drawing unit 2 has an image processing conversion function according to the orientation of the transparent display sections 3A and 3B.

[0018] Furthermore, drawing unit 2 can perform spatial filtering when it reduces the resolution of the original video signal to generate video signals A and B. In this case, it is possible to obtain the corresponding pixel values ​​of the output image by averaging not only the pixel values ​​according to the input image, but also the pixel values ​​within a region containing the surrounding pixels for each R, G, and B element.

[0019] The display device 1 with the configuration described above uses the transparent display sections 3A and 3B, whose resolution is low when used individually. However, by overlapping them, the number of pixels per unit area increases, resulting in a high-resolution configuration. Furthermore, since the transparent display sections 3A and 3B are inexpensive, it is possible to reduce costs compared to using OLEDs. Additionally, because the transparent films 4 overlap each other in such a way that the wiring sections 6 do not overlap, the electrical wiring sections 6 are kept compact.

[0020] Furthermore, the display device 1 is suitable for affixing the transparent display sections 3A and 3B to the vehicle's windshield to display vehicle driving information and the like. In this case, an ECU (electronic control unit), such as a measuring device or navigation unit, performs the function of the display unit 2.

[0021] A “display device” according to a second embodiment of the present invention is described with reference to Fig. 3 described. Fig. 3 are the same components as in the first embodiment described above, provided with the same reference numerals, and their description is omitted.

[0022] The in Fig. 3 Display device 101 shown contains two transparent display sections 103A, 103B, and a character unit 2 which transmits the video signals to each of the transparent display sections 103A, 103B.

[0023] Each of the transparent display sections 103A, 103B has a shape obtained by diagonally cutting the transparent film 4 of the transparent display sections 3A, 3B according to the first embodiment. The transparent film 104 of each of the transparent display sections 103A, 103B has a right-angled isosceles triangular shape, and the section corresponding to the hypotenuse is formed in a stepped shape to avoid the light-emitting elements 5. Each of the transparent display sections 103A, 103B has a plurality of light-emitting elements 5 arranged in a grid pattern.

[0024] With respect to the two transparent display sections 103A, 103B that constitute the display device 101, the transparent films 104 overlap each other such that one wiring section 6 does not overlap the other wiring section 6. In the present example, the transparent films 104 overlap with respect to the two transparent display sections 103A, 103B such that the wiring sections 6 are arranged in an L-shape, while the transparent films 104 are diagonally offset from each other. In this way, since each of the light-emitting elements 5 is offset due to the overlapping manner of the transparent display sections 103A, 103B, the display device 101 has a plurality of light-emitting elements 5 arranged in an offset pattern.

[0025] The character unit 2 splits the video signal from the display target into two to generate video signals A and B, transmits video signal A to the transparent display section 103A, and rotates video signal B by 90 degrees to transmit it to the other transparent display section 103B. In this example, the spatial filtering described above can also be performed if necessary.

[0026] The display device 101 of the present example is also suitable for adhering the transparent display sections 103A, 103B to the windshield of an automobile to display vehicle driving information and the like. The edge sections of the windshield are not straight, but slanted. The transparent display sections 103A, 103B of the present example are designed to correspond to the shape of the edge sections of the respective windshield, and the sections with the stepped shape described above fit the edge sections of the windshield.

[0027] In the embodiment described above, two transparent display sections are overlapped to form the display device; however, in the present invention, two or more transparent display sections can be overlapped. Furthermore, regarding the manner of overlapping, the transparent display sections can overlap in any orientation, as long as the wiring sections do not overlap. In the embodiment described above, the two transparent display sections are diagonally offset to arrange the light-emitting elements in the offset pattern; however, according to the present invention, the transparent display sections can be offset in any direction, including upward, downward, left, or right.

[0028] The embodiment described above has been presented merely as a representative embodiment of the present invention, and the present invention is not limited to this embodiment. That is to say, various modifications can be made without departing from the essence of the present invention. As long as such modifications still retain the structure according to the present invention, they are naturally included within the scope of the present invention. [REFERENCE MARK LIST] 1, 101 Display device 2 character units 3A, 3B, 103A, 103B transparent display section 4,104 transparent film 5 light-emitting elements 6 Wiring section QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] WO 2020 / 050062 A1

[0005] JP 2025-122981 A

[0005]

Claims

Display device (1, 101) comprising a plurality of transparent display sections (3A, 3B, 103A, 103B) and a character unit (2) for transmitting video signals to each transparent display section (3A, 3B, 103A, 103B), characterized in that each transparent display section (3A, 3B, 103A, 103B) comprises a transparent film (4, 104), a plurality of light-emitting elements (5) arranged on the transparent film (4, 104), and a wiring section (6) attached to an edge of the transparent film (4), in the plurality of transparent display sections (3A, 3B, 103A, 103B) the transparent films (4, 104) overlap each other, wherein one wiring section (6) does not overlap the other wiring section (6). overlaps, and the character unit (2) generates a video signal that is assigned to each transparent display section (3A, 3B, 103A, 103B) based on a video signal from a display target,and transmits the video signal to each transparent display section (3A, 3B, 103A, 103B). Display device (1, 101) according to claim 1, characterized in that two transparent display sections (3A, 3B, 103A, 103B) are included, in each transparent display section (3A, 3B, 103A, 103B) the plurality of light-emitting elements (5) are arranged in a grid shape, and the plurality of light-emitting elements (5) are arranged in an offset pattern in a state in which the transparent films (4, 104) of the two transparent display sections (3A, 3B, 103A, 103B) overlap with each other. Display device (1, 101) according to claim 2, characterized in that in the two transparent display sections (3A, 3B) the transparent films (4) overlap each other, so that the wiring sections (6) face each other, and the character unit (2) splits the video signal of the display target in two, and inverts one video signal by 180 degrees in order to transmit one video signal to a transparent display section (3B). Display device (1, 101) according to claim 2, characterized in that in the two transparent display sections (103A, 103B) the transparent films (104) overlap each other, so that the wiring sections (6) are arranged in an L-shape, and the character unit (2) splits the video signal of the display target in two, and rotates one video signal by 90 degrees to transmit one video signal to a transparent display section (103B).

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