# US 10,120,223 B2 · Liquid crystal display device

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- Number: US 10,120,223 B2
- Document ID: US10120223B2
- Status: Granted
- Kind: B2
- Application number: 15/363,159
- Filed: 2016-11-29
- Published: 2017-07-06
- Granted: 2018-11-06
- Earliest claimed: 2015-12-30
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: JeYoung Moon; SangHo Han
- Web page: https://patentgrep.com/patent/US10120223B2

## CPC

- G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels}
- G02B 6/0055: {Reflecting element, sheet or layer}
- G02F 1/13338: {Input devices, e.g. touch panels}
- G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels}
- G06F 1/1601: {Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64)}
- G02B 6/009: {of the light source in the package (G02B6/0021 takes precedence)}
- G02F 1/133317: {Intermediate frames, e.g. between backlight housing and front frame}
- G02F 1/133331: {Cover glasses}
- G02F 1/1336: {Illuminating devices}
- G06F 2200/1612: Flat panel monitor
- 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
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

Disclosed is an LCD device. The LCD device includes an upright-type case member including a supporting surface, a backlight unit attached on the supporting surface, and a liquid crystal display panel directly attached on the backlight unit. The upright-type case member is bent from one edge of the supporting surface and protrudes to a front surface of the liquid crystal display panel. Since the liquid crystal display panel is directly attached on the backlight unit, a separate element for enabling the liquid crystal display panel to be stably disposed on the backlight unit is not needed, and thus, a thickness of the LCD device does not increase.

## Claims

### Claim 1

A liquid crystal display (LCD) device, comprising:
an upright-type case member including a supporting surface;
a backlight unit attached on the supporting surface; and
a liquid crystal display panel directly attached on the backlight unit,
wherein the upright-type case member is bent from one edge of the supporting surface and protrudes to a front surface of the liquid crystal display panel.

### Claim 2 (depends on 1)

The LCD device of claim 1, wherein
the upright-type case member comprises:
a vertical supporting part including the supporting surface on which the backlight unit is attached;
a horizontal supporting part bent from one edge of the vertical supporting part;
a semi-horizontal supporting part bent from another edge of the vertical supporting part and disposed in parallel with the horizontal supporting part; and
a side wall bent from both edges other than one side and another side of the vertical supporting part, the side wall extending to both surfaces of the horizontal supporting part, and
the horizontal supporting part is longer in length than the semi-horizontal supporting part.

### Claim 3 (depends on 2)

The LCD device of claim 2, further comprising: a ring part bent from one edge of the semi-horizontal supporting part and disposed in parallel with the vertical supporting part to support a front border of the liquid crystal display panel.

### Claim 4 (depends on 2)

The LCD device of claim 2, further comprising:
a printed circuit board (PCB) connected to the liquid crystal display panel and supported by the horizontal supporting part to protrude to the front surface of the liquid crystal display panel; and
a cover member coupled to the horizontal supporting part to cover the PCB.

### Claim 5 (depends on 4)

The LCD device of claim 4, wherein the PCB is disposed vertical to the liquid crystal display panel and protrudes to the front surface and a rear surface of the liquid crystal display panel.

### Claim 6 (depends on 4)

The LCD device of claim 4, wherein the backlight unit comprises:
a reflective sheet attached on the supporting surface;
a light guide plate attached on the reflective sheet;
an optical sheet part attached on the light guide plate; and
a light source module disposed between the horizontal supporting part and the light guide plate.

### Claim 7 (depends on 6)

The LCD device of claim 6, further comprising: a supporting member disposed in the horizontal supporting part to support the optical sheet part and the liquid crystal display panel.

### Claim 8 (depends on 7)

The LCD device of claim 7, further comprising: a flexible circuit film connecting the liquid crystal display panel to the PCB,
wherein the supporting member comprises:
a panel supporting part supporting a side surface of the liquid crystal display panel;
a sheet supporting part vertically bent from the panel supporting part to support the optical sheet part; and
a flexible circuit film mounting part, the flexible circuit film mounting part being a groove for providing the flexible circuit film.

### Claim 9 (depends on 5)

The LCD device of claim 5, further comprising: a light source module mounted on the PCB and disposed between the horizontal supporting part and the light guide plate.

### Claim 10 (depends on 4)

The LCD device of claim 4, wherein the cover member comprises a touch sensor.

### Claim 11 (depends on 6)

The LCD device of claim 6, further comprising: an adhesive member attaching the light guide plate on the semi-horizontal supporting part of the upright-type case member.
