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US-20260126683-A1 - DISPLAY DEVICE

US20260126683A1US 20260126683 A1US20260126683 A1US 20260126683A1US-20260126683-A1

Abstract

A display device includes a display panel, a flexible substrate that connects to the display panel and connects the display panel to the outside, and a housing that accommodates the display panel and has an opening in a side plate through which the flexible substrate passes. The display device further includes a cover and a waterproof film. The cover is disposed on a display surface side of the display panel and adhered to the housing. The waterproof film is affixed to a main surface of the cover on a display panel side thereof, a side plate of the housing having the opening, and bottom surface of the housing, and covering a gap, including the opening, between the cover and the side plate of the housing having the opening, with the flexible substrate passing through the opening.

Inventors

  • Tomoya OGI

Assignees

  • Shanghai Tianma Micro-electronics Co., Ltd.

Dates

Publication Date
20260507
Application Date
20251103
Priority Date
20241106

Claims (7)

  1. 1 . A display device comprising: a display panel; a flexible substrate that connects to the display panel and connects the display panel to an outside; a housing that accommodates the display panel and has an opening in a side plate through which the flexible substrate passes; a cover that is disposed on a display surface side of the display panel and adhered to the housing; and a waterproof film that is affixed to a main surface of the cover on a display panel side thereof, the side plate of the housing having the opening, and a bottom surface of the housing, and covering a gap, including the opening, between the cover and the side plate of the housing having the opening, with the flexible substrate passing through the opening.
  2. 2 . The display device according to claim 1 , wherein the waterproof film includes a cutout that avoids an adhesive member that adheres the cover to the housing.
  3. 3 . The display device according to claim 1 , wherein the waterproof film is a film including metal.
  4. 4 . A display device comprising: a display panel; a first flexible substrate that connects to the display panel and connect the display panel to an outside; a housing that accommodates the display panel and has an opening in a side plate through which the first flexible substrate passes; a touch panel that is disposed on a display surface side of the display panel and adhered to the housing; a second flexible substrate that connects to a frame region of the touch panel and connects the touch panel to the outside; a cover that covers the touch panel and is adhered to the touch panel; a first waterproof film that is affixed to a main surface of the cover on a display panel side thereof, the side plate of the housing having the opening, and a bottom surface of the housing, and covers a gap, including the opening, between the cover and the side plate of the housing having the opening, with the first flexible substrate passing through the opening; and a second waterproof film that is affixed to the main surface of the cover on the display panel side, the side plate of the housing, and the bottom surface of the housing, and covers a gap between the cover and the frame region of the touch panel to which the second flexible substrate is connected.
  5. 5 . A display device comprising: a display panel; a first flexible substrate that connects to the display panel and connect the display panel to an outside; a housing that accommodates the display panel and has an opening in a side plate through which the first flexible substrate passes; a touch panel that is disposed on a display surface side of the display panel and adhered to the housing; a second flexible substrate that connects to a frame region of the touch panel and connects the touch panel to the outside; a cover that covers the touch panel and is adhered to the touch panel; a first waterproof film that is affixed to a main surface of the touch panel on a display panel side thereof, the side plate of the housing having the opening, and a bottom surface of the housing, and covers a gap, including the opening, between the touch panel and the side plate of the housing having the opening, with the first flexible substrate passing through the opening; and a second waterproof film that is affixed to a main surface of the cover on a display panel side thereof, the side plate of the housing, and the bottom surface of the housing, and covering a gap between the cover and the frame region of the touch panel to which the second flexible substrate is connected.
  6. 6 . The display device according to claim 4 , wherein the first waterproof film includes a cutout that avoids an adhesive member that adheres the touch panel to the housing.
  7. 7 . The display device according to claim 4 , wherein at least one of the first waterproof film or the second waterproof film is a film including metal.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present disclosure claims the benefits of Japanese Patent Application No. 2024-194326, filed on Nov. 6, 2024, and Japanese Patent Application No. 2025-115985, filed on Jul. 9, 2025, the entire disclosure of which are incorporated by reference herein. FIELD OF THE INVENTION The present disclosure relates generally to a display device. BACKGROUND OF THE INVENTION Display devices mounted on vehicles, laptop-type computers, and the like, are required to be waterproof. For example, even when drinking water is spilled onto a display device installed in a vehicle, the display device is expected not to be damaged by the drinking water. A known approach involves providing a display device with a waterproof sheet. For example, Japanese U.S. Pat. No. 5,222,987 discloses a display device including a display panel, a frame member, and a waterproof sheet. The display panel may be, a liquid crystal display panel, an organic electro-luminescence (EL) display panel, or the like. The frame member supports the outer peripheral portion of the display surface of the display panel. The waterproof sheet is affixed to a side of the display panel to which the circuit board is connected, and extends along a surface of the frame member facing the display panel between the display panel and the frame member. In Japanese U.S. Pat. No. 5,222,987, when moisture enters the frame member through a gap between the display panel and the frame member, moisture accumulates between the waterproof sheet and the frame member. This prevents the circuit board from corroding due to moisture. However, this requires the frame member that supports the outer peripheral portion of the display surface of the display panel, and thus the feature of Japanese U.S. Pat. No. 5,222,987 cannot be applied to a display device not including a frame member. Furthermore, as moisture accumulates between the waterproof sheet and the frame member, the waterproof performance of the display device disclosed in Japanese U.S. Pat. No. 5,222,987 is insufficient. SUMMARY OF THE INVENTION A display device according to a first aspect of the present disclosure includes: a display panel;a flexible substrate that connects to the display panel and connects the display panel to an outside;a housing that accommodates the display panel and has an opening in a side plate through which the flexible substrate passes;a cover that is disposed on a display surface side of the display panel and adhered to the housing; anda waterproof film affixed to a main surface of the cover on a display panel side thereof, the side plate of the housing having the opening, and a bottom surface of the housing, and covering a gap, including the opening, between the cover and the side plate of the housing having the opening, with the flexible substrate passing through the opening. A display device according to a second aspect of the present disclosure includes: a display panel;a first flexible substrate that connects to the display panel and connect the display panel to an outside;a housing that accommodates the display panel and has an opening in a side plate through which the first flexible substrate passes;a touch panel that is disposed on a display surface side of the display panel and adhered to the housing;a second flexible substrate that connects to a frame region of the touch panel and connects the touch panel to the outside;a cover that covers the touch panel and is adhered to the touch panel;a first waterproof film that is affixed to a main surface of the cover on a display panel side thereof, the side plate of the housing having the opening, and a bottom surface of the housing, and covers a gap, including the opening, between the cover and the side plate of the housing having the opening, with the first flexible substrate passing through the opening; anda second waterproof film that is affixed to the main surface of the cover on the display panel side, the side plate of the housing, and the bottom surface of the housing, and covering a gap between the cover and the frame region of the touch panel to which the second flexible substrate is connected. A display device according to a third aspect of the present disclosure includes: a display panel;a first flexible substrate that connects to the display panel and connect the display panel to an outside;a housing that accommodates the display panel and has an opening in a side plate through which the first flexible substrate passes;a touch panel that is disposed on a display surface side of the display panel and adhered to the housing;a second flexible substrate that connects to a frame region of the touch panel and connects the touch panel to the outside;a cover that covers the touch panel and is adhered to the touch panel;a first waterproof film that is affixed to a main surface of the touch panel on a display panel side thereof, the side plate of the housing having the opening, and a bottom surface of the hous