# US 8,465,174 B2 · Direct-lit light box with even-width frame design

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- Number: US 8,465,174 B2
- Document ID: US8465174B2
- Status: Granted
- Kind: B2
- Application number: 12/985,471
- Filed: 2011-01-06
- Published: 2011-07-14
- Granted: 2013-06-18
- Earliest claimed: 2010-01-08
- Assignees: Luxingtek, Ltd.
- Applicants: Wen-Chiun Ing; Wei-Hsin Hou
- Inventors: Wen-Chiun Ing; Wei-Hsin Hou
- Web page: https://patentgrep.com/patent/US8465174B2

## CPC

- G09F 9/33: being semiconductor devices, e.g. diodes
- G02B 5/005: {Diaphragms (for cameras G03B9/02)}
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A light box defined with a peripheral portion and a display portion is provided. The peripheral portion has four margins, and the opposing margins being defined with equal widths. The display portion is surrounded by the peripheral portion and is rectangular. The light box comprises at least two sets of electrode pads and an outer frame. The at least two sets of the electrode pads are disposed on at least two of the margins, respectively, and each set of the electrode pads comprises a connector electrode pad, disposed at the corresponding margin. With the arrangement of the at least two sets of the electrode pads, the light box can be panelized with one or more lighting panels.

## Claims

### Claim 1

A light box, comprising:
a cover;
a diffuser plate;
a first magnet embedded in the diffuser plate;
a second magnet embedded in the cover, wherein the first magnet and the second magnet are formed at corresponding positions;
a peripheral portion, having four margins, the opposing margins being defined with equal widths;
a display portion, being surrounded by the peripheral portion and being rectangular; and
at least two sets of electrode pads, being disposed on at least two of the margins, respectively, and each set of the at least two sets of the electrode pads comprising a connector electrode pad, disposed at the corresponding margin.

### Claim 2 (depends on 1)

The light box of claim 1, wherein the least two sets of the electrode pads are two sets of the electrode pads, the light box further comprises an outer frame, the outer frame comprises two of the margins, and the two sets of the electrode pads are disposed on the other two of the margins respectively.

### Claim 3 (depends on 1)

The light box of claim 1, wherein the least two sets of the electrode pads are four sets of the electrode pads, the light box further comprises an outer frame, the outer frame comprises one of the margins, and the four sets of the electrode pads are disposed on the other three of the margins.

### Claim 4 (depends on 1)

The light box of claim 1, wherein the least two sets of the electrode pads are eight sets of the electrode pads, and the eight sets of the electrode pads are disposed on the four margins.

### Claim 5 (depends on 4)

The light box of claim 4, wherein the light box further comprises an outer frame.

### Claim 6 (depends on 1)

The light box of claim 1, wherein the display portion comprises a plurality of LEDs.

### Claim 7 (depends on 1)

The light box of claim 1, wherein each set of the at least two sets of the electrode pads comprises power adapter pads.

### Claim 8 (depends on 1)

The light box of claim 1, wherein the light box further comprises a circuit board, and the display portion is disposed on the circuit board.

### Claim 9 (depends on 1)

The light box of claim 1, further comprising a control circuit, being disposed on the peripheral portion and having an LED driver, a micro control unit (MCU) for controlling the LED driver, and a DC/DC converter.

### Claim 10 (depends on 6)

The light box of claim 6, further comprising a light spreading structure, disposed on the plurality of LEDs.

### Claim 11 (depends on 1)

The light box of claim 1, further comprising an image plate, wherein the image plate is formed with an image.

### Claim 12 (depends on 11)

The light box of claim 11, wherein the image plate is a photographic film.

### Claim 13 (depends on 11)

The light box of claim 11, further comprising a cover, wherein the cover is a transparent plate, and the cover covers the peripheral portion, the display portion, the at least two sets of the electrode pads, and the image plate.

### Claim 14 (depends on 11)

The light box of claim 11, further comprising at least one spacer bar, disposed on the peripheral portion to support the image plate.

### Claim 15 (depends on 1)

The light box of claim 1, wherein the diffuser plate is disposed above the display portion and the peripheral portion.

### Claim 16 (depends on 1)

The light box of claim 1, further comprising:
a first black mask layer, being formed on the diffuser plate and corresponding to the peripheral portion; and
a second black mask layer, being formed on the cover and corresponding to the peripheral portion.

### Claim 17 (depends on 1)

The light box of claim 1, wherein the light box is a square, a rhombus or a trapezoid shape.