# US 8,786,800 B2 · Frameless liquid crystal display device

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- Number: US 8,786,800 B2
- Document ID: US8786800B2
- Status: Granted
- Kind: B2
- Application number: 13/642,118
- Filed: 2012-08-30
- Published: 2014-02-27
- Granted: 2014-07-22
- Earliest claimed: 2012-08-30
- Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Applicants: Gang Yu; Liuyang Yang; Pei Jia
- Inventors: Gang Yu; Liuyang Yang; Pei Jia
- Web page: https://patentgrep.com/patent/US8786800B2

## CPC

- G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels}
- G09F 9/35: being liquid crystals (G09F9/302 takes precedence; liquid crystal materials C09K19/00; {liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13})
- G02F 1/133317: {Intermediate frames, e.g. between backlight housing and front frame}
- G02F 1/133331: {Cover glasses}
- G02F 2201/46: Fixing elements
- G02F 2202/28: Adhesive materials or arrangements
- 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
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS

## Abstract

A frameless liquid crystal display device includes a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and mounted to the rear enclosure, and a liquid crystal display panel arranged on the mold frame. The liquid crystal display panel has an upper portion mounted to the mold frame through a single-side attaching section, which comprises a central attaching portion bonded to the liquid crystal display panel and two fabric strip-like fastening segments extending from the central attaching portion. The mold frame forms through holes through which the fabric strip-like fastening segments extend to engage and fasten each other so the fix the upper portion of the liquid crystal display panel to the mold frame. The liquid crystal display panel forms a step and a surface decoration is positioned on the step and fixed to the mold frame.

## Claims

### Claim 1

A frameless liquid crystal display device, comprising a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and mounted to the rear enclosure, and a liquid crystal display panel arranged on the mold frame, the liquid crystal display panel having an upper portion that is mounted to the mold frame through a single-side attaching section, the single-side attaching section comprising a central attaching portion and fabric strip-like fastening segments, the central attaching portion being bonded to a back surface of the liquid crystal display panel and having two ends from which the fabric strip-like fastening segments extend, the mold frame forming through holes corresponding to the fabric strip-like fastening segments, the fabric strip-like fastening segments extending through the through holes of the mold frame to engage and fasten each other so as to fix the upper portion of the liquid crystal display panel to the mold frame, the liquid crystal display panel comprising a CF substrate and a TFT substrate laminated on the CF substrate, the CF substrate forming a step with respect to a lower edge of the TFT substrate, a surface decoration being positioned on the step and fixed to the mold frame so as to assemble the liquid crystal display panel to the mold frame.

### Claim 2 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein the two fabric strip-like fastening segments have opposing surface respectively forming structures similar to mating components of a loop-and-hook fastener.

### Claim 3 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein the mold frame is fixed to the rear enclosure by screws.

### Claim 4 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein the surface decoration is fixed to the mold frame by screws.

### Claim 5 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein a cushioning pad is arranged between the liquid crystal display panel and the mold frame.

### Claim 6 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein a top face of the surface decoration and a top face of the CF substrate are located on a same plane.

### Claim 7 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein a cushioning structure is arranged between the surface decoration and the liquid crystal display panel.

### Claim 8 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein the liquid crystal display panel comprises liquid crystal interposed between the CF substrate and the TFT substrate and a top polarization plate and a bottom polarization plate respectively laminated to the CF substrate and the TFT substrate.

### Claim 9 (depends on 1)

The frameless liquid crystal display device as claimed in claim 1, wherein the backlight module comprises a backplane, a backlight source arranged inside the backplane, a reflector plate arranged inside the backplane, a light guide plate positioned on the reflector plate, and an optic film assembly positioned on the light guide plate.

### Claim 10 (depends on 8)

The frameless liquid crystal display device as claimed in claim 8, wherein the backplane comprises a bottom board and a side board connected to the bottom board, the backlight source being mounted to the side board, the reflector plate being arranged on the bottom board.

### Claim 11

A frameless liquid crystal display device, comprising a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and mounted to the rear enclosure, and a liquid crystal display panel arranged on the mold frame, the liquid crystal display panel having an upper portion that is mounted to the mold frame through a single-side attaching section, the single-side attaching section comprising a central attaching portion and fabric strip-like fastening segments, the central attaching portion being bonded to a back surface of the liquid crystal display panel and having two ends from which the fabric strip-like fastening segments extend, the mold frame forming through holes corresponding to the fabric strip-like fastening segments, the fabric strip-like fastening segments extending through the through holes of the mold frame to engage and fasten each other so as to fix the upper portion of the liquid crystal display panel to the mold frame, the liquid crystal display panel comprising a CF substrate and a TFT substrate laminated on the CF substrate, the CF substrate forming a step with respect to a lower edge of the TFT substrate, a surface decoration being positioned on the step and fixed to the mold frame so as to assemble the liquid crystal display panel to the mold frame;
wherein the two fabric strip-like fastening segments have opposing surface respectively forming structures similar to mating components of a loop-and-hook fastener;
wherein the mold frame is fixed to the rear enclosure by screws;
wherein the surface decoration is fixed to the mold frame by screws;
wherein a cushioning pad is arranged between the liquid crystal display panel and the mold frame;
wherein a top face of the surface decoration, a top face of the CF substrate, and a top face of the retention section of the mold frame all located on a same plane;
wherein a cushioning structure is arranged between the surface decoration and the liquid crystal display panel;
wherein the liquid crystal display panel comprises liquid crystal interposed between the CF substrate and the TFT substrate and a top polarization plate and a bottom polarization plate respectively laminated to the CF substrate and the TFT substrate;
wherein the backlight module comprises a backplane, a backlight source arranged inside the backplane, a reflector plate arranged inside the backplane, a light guide plate positioned on the reflector plate, and an optic film assembly positioned on the light guide plate; and
wherein the backplane comprises a bottom board and a side board connected to the bottom board, the backlight source being mounted to the side board, the reflector plate being arranged on the bottom board.
