DISPLAY DEVICE

• US 20150329042A1
• Filed: 10/02/2013
• Published: 11/19/2015
• Est. Priority Date: 12/06/2012
• Status: Abandoned Application

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: ARAKI, Teruaki
• Application Number:
  US14/649,926
• Publication Number:
  US 20150329042A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60K 2360/33 Illumination features
• CPC Class Codes: B60K 2360/34 Backlit symbols
• CPC Class Codes: B60K 2360/341 Illumination of dials
• CPC Class Codes: B60K 2370/33 Illumination features
• CPC Class Codes: B60K 2370/34 Backlit symbols
• CPC Class Codes: B60K 2370/341 Illumination of dials
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60Q 3/14 lighting through the surface to be illuminated
• CPC Class Codes: F21V 11/02 using parallel laminae or strips, e.g. of Venetian-blind type F21V11/06 takes precedence
• CPC Class Codes: G01D 11/28 Structurally-combined illuminating devices
• CPC Class Codes: G01D 13/28 with luminescent markings
• CPC Class Codes: G09F 13/04 Signs, boards or panels, illuminated from behind the insignia
• CPC Class Codes: G09F 13/08 using both translucent and non-translucent layers

Abstract

A display device including a plurality of light-emitting elements provided to one surface side of a substrate, a display panel having a plurality of light-transmitting units for transmitting light emitted from light-emitting units, respectively, in the plurality of light-emitting elements, the display panel being disposed to face the one surface of the substrate, and a light-blocking wall disposed between the substrate and the display panel in a position corresponding to the space between mutually adjacent light-emitting elements. A gap is present between the one surface of the substrate and the distal end of the light-blocking wall on the substrate side. The light-emitting units are disposed closer to the display panel than the gap is to the display panel. Light can therefore be suppressed from leaking from the gap formed between the substrate and the light-blocking wall.

Claims

1. A display device comprising:

a substrate;

a plurality of light-emitting elements including a light-emitting unit and provided on a mounting surface of the substrate;

a display panel arranged to face the mounting surface of the substrate;

a plurality of light-transmitting units provided on the display panel with respect to the plurality of light-emitting elements, the plurality of light-transmitting units allowing light emitted from the light-emitting unit to transmit therethrough; and

a light-blocking wall provided at a location corresponding to a space between mutually adjacent ones of the plurality of light-emitting elements, the light-blocking wall being positioned between the substrate and the display panel, wherein

a gap is defined between the mounting surface of the substrate and a facing end surface of the light-blocking wall that faces the substrate,

the light-emitting unit is disposed closer to the display panel than the gap is to the display panel,

the light-emitting unit is mounted on a light-emitting unit substrate that is disposed on the mounting surface of the substrate, and

the light-emitting unit is disposed closer to the display panel than the gap is to the display panel by setting a thickness of the light-emitting unit substrate to be larger than the gap.

3. The display device according to claim 1, wherein

a potting portion made of resin is provided on the light-emitting unit substrate and covers the light-emitting unit, and

a side surface of the potting portion is formed to slant toward a side of the light-emitting unit in a direction from the light-emitting unit substrate to the display panel.

4. The display device according to claim 1, wherein

a reflection suppressor is formed on the mounting surface of the substrate to suppress reflection of light emitted from the light-emitting unit.

2. (canceled)

5. A display device comprising:

a substrate;

a plurality of light-emitting elements including a light-emitting unit, the plurality of light-emitting elements being provided on a mounting surface of the substrate to be mutually adjacent;

a display panel arranged to face the mounting surface of the substrate;

a plurality of light-transmitting units provided on the display panel with respect to the plurality of light-emitting elements and allowing light emitted from the light-emitting unit to transmit therethrough;

a light-blocking wall, which isolates the plurality of light-emitting elements from one another, provided between the mounting surface of the substrate and the display panel at a location corresponding to a space between mutually adjacent ones of the plurality of light-emitting elements; and

a light-emitting unit substrate having a first surface on which the light-emitting unit is disposed and a second surface disposed on the substrate, wherein

the light-blocking wall includes a facing end surface that is spaced apart from, and faces, the mounting surface of the substrate,

the first surface of the light-emitting unit substrate is disposed closer to the display panel than the facing end surface of the light-blocking wall is to the display panel,

the mounting surface of the substrate is formed as a flat surface, and

a distance between the first surface and the second surface is set such that the first surface of the light-emitting unit substrate is disposed closer to the display panel than the facing end surface of the light-blocking wall is to the display panel.

6. (canceled)