# US 11,906,837 B2 · Picture generation apparatus

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- Number: US 11,906,837 B2
- Document ID: US11906837B2
- Status: Granted
- Kind: B2
- Application number: 18/055,329
- Filed: 2022-11-14
- Published: 2023-08-17
- Granted: 2024-02-20
- Earliest claimed: 2022-02-14
- Assignees: Hyundai Mobis Co., Ltd.
- Applicants: Hyundai Mobis Co., Ltd.
- Inventors: Hyun Woo Kang
- Web page: https://patentgrep.com/patent/US11906837B2

## CPC

- G02F 1/133385: {with cooling means, e.g. fans}
- B60K 35/23: Head-up displays [HUD] (optical aspects of head-up displays G02B27/01)
- G02B 27/0149: {characterised by mechanical features (G02B27/0176 takes precedence)}
- G02F 1/133322: {Mechanical guidance or alignment of LCD panel support components}
- G02F 1/133606: {including a specially adapted diffusing, scattering or light controlling members}
- H05K 7/20963: {Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20972 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)
- G02B 7/008: {with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation}
- G02F 1/133603: {with LEDs}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A picture generation apparatus includes: a PCB on which one or more light sources are disposed; an LCD projecting an image using light that is emitted from the one or more light sources; a diffuser disposed between the PCB and the LCD; and a screen configured to be in contact with at least a portion of the LCD and discharge heat generated from the LCD.

## Claims

### Claim 1

A picture generation apparatus comprising:
a printed circuit board (PCB) on which one or more light sources are disposed;
a liquid crystal display (LCD) projecting an image using light that is emitted from the one or more light sources;
a diffuser disposed between the PCB and the LCD; and
a screen having a heat dissipation fin, the screen being configured to be in contact with at least a portion of the LCD and discharge heat generated from the LCD to outside the apparatus using the heat dissipation fin.

### Claim 2 (depends on 1)

The picture generation apparatus of claim 1, wherein the LCD includes:
a display unit projecting the image; and
an edge unit formed to surround the display unit,
the screen being configured to be in contact with the edge unit.

### Claim 3 (depends on 1)

The picture generation apparatus of claim 1, wherein the screen includes one or more fixing members configured to fix at least one of the LCD or the diffuser to the screen.

### Claim 4 (depends on 3)

The picture generation apparatus of claim 3, wherein the one or more fixing members are formed in hook shapes.

### Claim 5 (depends on 1)

The picture generation apparatus of claim 1, wherein the screen includes one or more guiding members configured to guide positions at which the LCD and the diffuser are mounted on the screen.

### Claim 6 (depends on 5)

The picture generation apparatus of claim 5, wherein the one or more guiding members are formed in protruding shapes.

### Claim 7 (depends on 1)

The picture generation apparatus of claim 1, wherein the screen is made of a heat dissipation plastic material.

### Claim 8 (depends on 7)

The picture generation apparatus of claim 7, wherein thermal conductivity of the heat dissipation plastic is 15 W/mK or greater.

### Claim 9 (depends on 7)

The picture generation apparatus of claim 7, wherein a heat resistance temperature of the heat dissipation plastic is 130° C. or greater.

### Claim 10 (depends on 1)

The picture generation apparatus of claim 1, further comprising a heat sink disposed behind and surrounding the PCB.

### Claim 11 (depends on 10)

The picture generation apparatus of claim 10, wherein the heat sink is made of an aluminum material.

### Claim 12 (depends on 10)

The picture generation apparatus of claim 10, wherein the heat sink is manufactured through deep drawing.