# US 10,310,330 B2 · Backlight module and liquid crystal display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,310,330 B2 - Document ID: US10310330B2 - Status: Granted - Kind: B2 - Application number: 15/566,710 - Filed: 2017-04-18 - Published: 2019-02-14 - Granted: 2019-06-04 - Earliest claimed: 2017-03-17 - Assignees: Wuhan China Star Optoelectronics Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd. - Inventors: Zhongjie Liu - Web page: https://patentgrep.com/patent/US10310330B2 ## CPC - G02F 1/133608: {including particular frames or supporting means} - G02B 6/0055: {Reflecting element, sheet or layer} - G02B 6/0085: {Means for removing heat created by the light source from the package} - G02B 6/0088: {of the light guide or other optical sheets in the package} - G02B 6/009: {of the light source in the package (G02B6/0021 takes precedence)} - G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels} - G02F 1/133615: {Edge-illuminating devices, i.e. illuminating from the side} - G02F 1/133314: {Back frames} - G02F 1/133628: {with cooling means} - 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 ## Abstract A backlight module and liquid crystal display device are provided. The backlight module comprises a plastic frame, a reflection sheet, a light guide plate, a light source element, a hole glue and a heat dissipating element. The plastic frame comprises a first frame and a second frame disposed opposite each other. The heat dissipating element is disposed on the light source element, extending along an outer side surface of the first frame to a bottom portion of the reflection sheet, and is bonded to the corresponding hole glue on the second frame. ## Claims ### Claim 1 A backlight module, comprising: a plastic frame comprising a first frame and a second frame disposed opposite each other, and a third frame and a fourth frame for connecting the first frame and the second frame; a reflection sheet disposed on a bottom surface of the plastic frame; a light guide plate disposed on the reflection sheet; a light source element disposed on an inner side surface of the first frame; a hole glue adhered to an upper surface of the plastic frame; and a heat dissipating element disposed on the light source element, extending along an outer side surface of the first frame to a bottom portion of the reflection sheet, and being bonded to the corresponding hole glue on the second frame; the hole glue comprising a first side portion adhered to the second frame, a second side portion adhered to the third frame, and a third side portion adhered to the fourth frame; the heat dissipating element comprising a first bonding portion, a second bonding portion and an adhesive portion disposed between the first bonding portion and the second bonding portion; wherein the adhesive portion is bonded to the reflection sheet through a fixation effect of the first bonding portion and the second bonding portion. ### Claim 2 (depends on 1) The backlight module according to claim 1, wherein bonding lines are disposed at a boundary between the first bonding portion and the adhesive portion and at a boundary between the second bonding portion and the adhesive portion. ### Claim 3 (depends on 1) The backlight module according to claim 1, wherein the first bonding portion is bonded to the light source element, and the second bonding portion is bonded to the hole glue corresponding to the second frame. ### Claim 4 (depends on 1) The backlight module according to claim 1, wherein the heat dissipating element is a graphite sheet or a copper-aluminum foil. ### Claim 5 A backlight module, comprising: a plastic frame comprising a first frame and a second frame disposed opposite each other and a third frame and a fourth frame for connecting the first frame and the second frame; a reflection sheet disposed on a bottom surface of the plastic frame; a light guide plate disposed on the reflection sheet; a light source element disposed on an inner side surface of the first frame; a hole glue adhered to an upper surface of the plastic frame; and a heat dissipating element disposed on the light source element, extending along an outer side surface of the first frame to a bottom portion of the reflection sheet, and being bonded to the corresponding hole glue on the second frame. ### Claim 6 (depends on 5) The backlight module according to claim 5, wherein the hole glue comprises a first side portion adhered to the second frame, a second side portion adhered to the third frame, and a third side portion adhered to the fourth frame. ### Claim 7 (depends on 5) The backlight module according to claim 5, wherein the heat dissipating element comprises a first bonding portion, a second bonding portion and an adhesive portion disposed between the first bonding portion and the second bonding portion, and the adhesive portion is bonded to the reflection sheet through a fixation effect of the first bonding portion and the second bonding portion. ### Claim 8 (depends on 7) The backlight module according to claim 7, wherein bonding lines are disposed at a boundary between the first bonding portion and the adhesive portion and at a boundary between the second bonding portion and the adhesive portion. ### Claim 9 (depends on 7) The backlight module according to claim 7, wherein the first bonding portion is bonded to the light source element, and the second bonding portion is bonded to the hole glue corresponding to the second frame. ### Claim 10 (depends on 5) The backlight module according to claim 5, wherein the heat dissipating element is a graphite sheet or a copper-aluminum foil. ### Claim 11 A liquid crystal display device including a backlight module and a liquid crystal display panel fixed on the backlight module, the backlight module comprising: a plastic frame including a first frame and a second frame disposed opposite each other and a third frame and a fourth frame for connecting the first frame and the second frame; a reflection sheet disposed on a bottom surface of the plastic frame; a light guide plate disposed on the reflection sheet; a light source element disposed on an inner side surface of the first frame; a hole glue adhered to an upper surface of the plastic frame; and a heat dissipating element disposed on the light source element, extending along an outer side surface of the first frame to a bottom portion of the reflection sheet, and being bonded to the corresponding hole glue on the second frame. ### Claim 12 (depends on 11) The liquid crystal display device according to claim 11, wherein the hole glue comprises a first side portion adhered to the second frame, a second side portion adhered to the third frame, and a third side portion adhered to the fourth frame. ### Claim 13 (depends on 11) The liquid crystal display device according to claim 11, wherein the heat dissipating element comprises a first bonding portion, a second bonding portion and an adhesive portion disposed between the first bonding portion and the second bonding portion, and the adhesive portion is bonded to the reflection sheet through a fixation effect of the first bonding portion and the second bonding portion. ### Claim 14 (depends on 11) The liquid crystal display device according to claim 11, wherein the heat dissipating element is a graphite sheet or a copper-aluminum foil. ### Claim 15 (depends on 13) The liquid crystal display device according to claim 13, wherein bonding lines are disposed at a boundary between the first bonding portion and the adhesive portion and at a boundary between the second bonding portion and the adhesive portion. ### Claim 16 (depends on 13) The liquid crystal display device according to claim 13, wherein the first bonding portion is bonded to the light source element, and the second bonding portion is bonded to the hole glue corresponding to the second frame.