# US 8,783,922 B2 · Display device and meter device using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,922 B2 - Document ID: US8783922B2 - Status: Granted - Kind: B2 - Application number: 13/512,284 - Filed: 2009-11-30 - Published: 2012-10-18 - Granted: 2014-07-22 - Earliest claimed: 2009-11-30 - Assignees: Toyota Shatai Kabushiki Kaisha; Yazaki Corporation; Toyota Jidosha Kabushiki Kaisha - Applicants: Hiroaki Ichihara; Masaharu Kinoshita; Yoshifumi Tatsuta; Takahiro Shimada; Koji Nomura; Masato Minakata; Koji Aikawa - Inventors: Hiroaki Ichihara; Masaharu Kinoshita; Yoshifumi Tatsuta; Takahiro Shimada; Koji Nomura; Masato Minakata; Koji Aikawa - Web page: https://patentgrep.com/patent/US8783922B2 ## CPC - B60Q 3/10: for dashboards - B60K 35/21: using visual output, e.g. blinking lights or matrix displays - B60K 35/28: characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver - B60K 35/50: Instruments characterised by their means of attachment to or integration in the vehicle (B60K35/231 takes precedence) - B60K 35/60: Instruments characterised by their location or relative disposition in or on vehicles (arrangements of lighting devices on dashboards B60Q3/10) - G01D 11/28: Structurally-combined illuminating devices - B60K 35/29: Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions - B60K 2360/188: Displaying information using colour changes - B60K 2360/20: Optical features of instruments - B60K 2360/23: using reflectors - B60K 2360/25: using filters - B60K 2360/33: Illumination features - B60K 2360/332: Light emitting diodes - B60K 2360/34: Backlit symbols - B60K 2360/341: Illumination of dials - B60K 2360/343: Illumination of matrix displays - B60K 2360/349: Adjustment of brightness - B60K 2360/693: Cover plate features - G09F 13/04: Signs, boards or panels, illuminated from behind the insignia - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract Disclosed is a display device capable of achieving a decorative effect by utilizing a color filter at the front of a light-emitting display unit. Also disclosed is a meter device using the display device. Specifically disclosed is a display device comprising a light-emitting display unit and a color filter, which is arranged at the front of the light-emitting display unit. A light-emitting element for decoration is provided on the outside of the light-emitting display unit. The color filter is provided with a light-discharging surface for discharging the light from the light-emitting element for a decorative appearance in the forward direction. ## Claims ### Claim 1 A display device comprising: a light-emitting display unit; and a color filter arranged at the front of the light-emitting display unit, wherein a light-emitting element is provided in the outside of the light-emitting display unit, and a light-discharging surface for discharging light from the light-emitting element in a forward direction is formed at an end of the color filter and the light-discharging surface is formed by roughening an end of the color filter. ### Claim 2 (depends on 1) The display device according to claim 1, wherein a reflecting surface is provided in a light path of the light-emitting element, and light from the light-emitting element reaches the light-discharging surface through the reflecting surface. ### Claim 3 (depends on 1) A meter device, wherein the display device according to claim 1 is incorporated in an opening of a vehicle instrument panel, wherein the light-emitting display unit displays the vehicle travelling state, and a transparent front plate is provided in the opening so as to cover the color filter. ### Claim 4 (depends on 3) The meter device according to claim 3, wherein the reflecting surface is provided at a portion of the display device or a vehicle component. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the color filter is provided with a wall portion for preventing light from the reflecting surface from leaking to a back surface of the color filter. ### Claim 6 The meter device according to 3, wherein the color filter and the front plate are subjected to smoke processing.