DE-102025143585-A1 - 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 that forms 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, but 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.

Inventors

• Seiji KATAGIRI
• Aya HASHIMOTO
• Akihiro Yoshida

Assignees

• YAZAKI CORPORATION

Dates

Publication Date

20260513

Application Date

20251024

Priority Date

20241113

Claims (4)

1. 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), the transparent films (4, 104) overlapping each other in the plurality of transparent display sections (3A, 3B, 103A, 103B), 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).
2. 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.
3. 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 to transmit one video signal to a transparent display section (3B).
4. 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).

Description

[TECHNICAL FIELD] The present invention relates to a display device. [BACKGROUND TECHNOLOGY] 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. 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 4 The displayed display structure is reached. One in 4 The display structure shown is a structure created by bonding a transparent display section 3 to the glass 200. The transparent display section 3 is a configuration 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 in the case of the transparent display section 3, there is the advantage that it can be easily cut. The transparent section 3 in 4 It has the advantages described above, however the resolution is low, so that in the case of an adhesive application on a windshield of a motor 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] 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] 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] 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] 1 Figure 1 is a schematic configuration view showing a display device according to a first embodiment of the present invention.2 is a view that describes a manufacturing process for the display device of 1 describes.3 Figure 1 is a schematic configuration view showing a display device according to a second embodiment of the present invention.4 is a view that shows a display structure of a reference example. [DESCRIPTION OF EXECUTION FORMS] A “display device” according to a first embodiment of the present invention is referred to as 1-2 described. One in 1 , 2 The display device 1 shown 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. 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. 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. 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. 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