KR-20260067142-A - DISPLAY DEVICE

Abstract

A display device according to one embodiment of the present invention may include a display module, a side frame supporting a portion of each side of the display module, at least one fixing part coupled to the side frame and pressing one surface of the display module to fix the display module to the side frame, and a connecting module inserted into the rear surface of the fixing part and having a plurality of connecting wires connected between the components of the display module, thereby improving heat dissipation efficiency and conductivity performance.

Inventors

• 음효섭
• 이희동

Assignees

• 엘지디스플레이 주식회사

Dates

Publication Date

20260512

Application Date

20241105

Claims (20)

1. Display module; A side frame supporting a portion of each side of the above-mentioned display module; At least one fixing part coupled to the side frame and pressing one side of the display module to fix the display module to the side frame; and A display device comprising a connection module that is inserted into the rear surface of the fixed part and has a plurality of connection wires installed to connect the components of the display module.
2. In Article 1, The above fixed part is, A holder frame coupled to the above side frame; A holder rod coupled to the holder frame; and A display device comprising a pressure member coupled to the holder rod and pressing one side of the display module.
3. In Article 2, The above-mentioned pressure member is, A coupling member having a guide hole provided on the side, which moves along the slope of the guide hole when an external force is applied to the pressure member; An extension member extending from one end of the above-mentioned coupling member in the direction in which the display module is located; and It includes a pressure plate that extends vertically from the extended end of the extension member and selectively presses the display module according to a change in position, A display device in which the connection module is inserted into the rear surface of the above-mentioned pressure plate.
4. In Paragraph 3, The above connection module is, Bottom surface; and A display device comprising a side wall extending vertically from the bottom surface.
5. In Paragraph 4, Among the above side walls, the side wall adjacent to the side frame forms a guide section having an inward slope, and Among the above side walls, the side wall facing the guide part forms an elastic part, and A display device having an elastic member interposed between the elastic part and the pressure plate.
6. In Article 1, The above connection module is, Filling layer; and A display device comprising a plurality of connecting wires disposed within the above-mentioned filling layer.
7. In Article 6, The above connecting wiring is, Wiring sections arranged side by side in one direction; and A display device comprising a contact portion extending vertically from the end of the wiring portion.
8. In Article 7, The above-mentioned filling layer is composed of resin and includes a first filling layer located relatively inward with respect to the connecting wire and a second filling layer located relatively outward. A display device in which the first filling layer and the second filling layer are configured to surround the connecting wire, excluding the end portion of the contact portion.
9. In Paragraph 3, The above display module is, Display panel; A sealing portion covering one side of the above-mentioned display panel; A heat dissipation plate disposed on the upper part of the above-mentioned bag; A COF (Chip on Film) disposed on the upper part of the heat dissipation plate; and A display device comprising a driving IC (Integrated Circuit) mounted on the above COF.
10. In Article 9, A display device comprising a display module, the above-described display module further including a printed circuit board disposed above the heat dissipation plate so as to be spaced apart from the COF.
11. In Article 9, A display device in which the above connecting wiring connects the pad of the display panel and the output pad of the COF.
12. In Article 10, The above connecting wiring is a display device that connects the COF and the printed circuit board.
13. In Article 10, A first receiving groove provided on the rear surface of the above-mentioned pressure plate for receiving the driving IC; and A display device further comprising a second receiving groove for receiving the above-mentioned printed circuit board.
14. In Paragraph 3, The above display module is, The above display panel; A driving IC mounted on the above display panel; A sealing portion covering one side of the display panel excluding the driving IC; and A display device comprising a heat dissipation plate disposed on the upper part of the above-mentioned bag portion.
15. In Article 14, A display device comprising a printed circuit board disposed on the upper part of the heat dissipation plate, wherein the above-mentioned display module further comprises a display module.
16. In Article 15, The above connecting wiring is a display device that connects the display panel and the printed circuit board.
17. In Paragraph 3, The above display module is, The above display panel; Encapsulation portion covering one side of the display panel excluding the driving IC; A heat dissipation plate disposed on the upper part of the above-mentioned bag; A printed circuit board disposed on top of the heat dissipation plate; and A display device comprising a driving IC mounted on the above printed circuit board.
18. In Article 17, A display device in which the above connecting wiring connects the above display panel and the above printed circuit board.
19. In Article 1, The above plurality of connecting wires includes a plurality of first connecting wires and a plurality of second connecting wires having different lengths, and The first connecting wire above includes a first wiring section arranged parallel in one direction and a first contact section extending vertically from the end of the first wiring section, and A display device comprising a second connecting wire, wherein the second connecting wire comprises a second wiring portion arranged in parallel in one direction and a second contact portion extending vertically from the end of the second wiring portion.
20. In Article 19, The first wiring section has a longer length than the second wiring section, and A display device in which the second contact portion has a longer length than the first contact portion.

Description

Display Device The present invention relates to a display device comprising a fixing device for a display module. As we enter the full-scale information age, the field of display devices that visually represent electrical information signals is developing rapidly, and research is continuing to improve the performance of various display devices, such as miniaturization, lightweighting, and low power consumption. Representative display devices include Liquid Crystal Display Devices (LCDs), Electro-Wetting Display Devices (EWDs), and Organic Light Emitting Display Devices (OLEDs). Among these, organic light-emitting displays are self-emissive display devices that, unlike liquid crystal displays, do not require a separate light source, allowing for the manufacturing of lightweight and thin forms. Furthermore, organic light-emitting displays are not only advantageous in terms of power consumption due to low-voltage driving, but also offer excellent color reproduction, response speed, viewing angle, and contrast ratio (CR), making them promising for use in various fields. An organic light-emitting display device is constructed by placing an organic light-emitting layer made of organic material between two electrodes referred to as an anode and a cathode. When holes from the anode are injected into the light-emitting layer and electrons from the cathode are injected into the light-emitting layer, the injected electrons and holes recombine with each other to form excitons in the light-emitting layer and emit light. Due to the self-luminous characteristics of the organic light-emitting display device described above, there is a problem in that the organic light-emitting layer deteriorates and undergoes degradation and decomposition when operated for a long time due to heat generated from the organic light-emitting layer itself in the display panel. This degradation problem causes brightness variations between pixels, leading to image quality degradation such as afterimages and reduced lifespan, and this degradation problem becomes more pronounced as the display panel becomes larger in area. FIG. 1 is a perspective view of a display device according to a first embodiment of the present invention. Figure 2 is a cross-sectional view of the display device shown in Figure 1. FIG. 3 is a block diagram of a display module according to a first embodiment of the present invention. FIG. 4 is a circuit diagram of a subpixel according to a first embodiment of the present invention. Figure 5 is a cross-sectional view of a single subpixel. FIG. 6 is a perspective view of the fixing device shown in FIG. 1. Fig. 7 is an exploded perspective view of Fig. 6. FIG. 8 is a perspective view of the side frame shown in FIG. 6. Fig. 9 is an exploded perspective view of the fixed part shown in Fig. 6. FIG. 10 is a perspective view of the holder frame shown in FIG. 9. FIG. 11 is a perspective view showing the state in which the holder frame is combined with the side frame of FIG. 8. FIG. 12 is a cross-sectional view along A-A' of FIG. 11. FIG. 13 is a perspective view of the pressure member shown in FIG. 9. FIG. 14 is a perspective view of the buckling prevention part shown in FIG. 6. FIG. 15 is a perspective view of the pressure member shown in FIG. 13. FIG. 16 is a cross-sectional view of the pressurizing member and display module shown in FIG. 15. FIG. 17 is a cross-sectional view of another example of a joining member and a display module. FIG. 18 is a perspective view of a display device equipped with different types of fixing devices. FIG. 19 is a cross-sectional view of a display device according to a second embodiment of the present invention. FIG. 20 is a cross-sectional view of a display device according to a third embodiment of the present invention. FIG. 21 is a cross-sectional view of a display device according to a fourth embodiment of the present invention. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms, and these embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are exemplary, and therefore the present invention is not limited to the depicted details. Furthermore, in describing the present invention, if it is determined that a detailed description of related known technology may unnecessarily obscure the essence of the present invention, such detailed description is omitted. Additionally, where terms such as "includes," "has," or "is made up" are used in this specification, other parts may be add