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Backlight Module and Liquid Crystal Display Including Same
| Content Provider | The Lens |
|---|---|
| Abstract | A backlight module includes a back plate having a side wall, a light guide plate disposed on the back plate and having a light incident surface, a light source disposed on the sidewall and adjacent to the light incident surface, a middle frame overlying the light guide plate and the light source, a first latching member disposed on a side of the middle frame facing toward the back plate and having a first groove, a second latching member disposed on a side of the back plate facing toward the middle frame and having a second groove, and a quantum bar, one end of which is latched in the first groove and the other end is latched in the second groove. The present invention also provides a LCD including the backlight module. The fixing manner of the quantum bar is simple and the cost is reduced. |
| Related Links | https://www.lens.org/lens/patent/010-798-915-254-075/frontpage |
| Language | English |
| Publisher Date | 2017-05-23 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |
| Jurisdiction | United States of America |
| Date Applied | 2015-01-07 |
| Agent | Andrew C. Cheng |
| Applicant | Shenzhen China Star Optoelect |
| Application No. | 201514423111 |
| Claim | A backlight module, comprising: a back plate, comprising at least one sidewall; a light guide plate, disposed on the back plate and comprising at least one light incident surface; a light source, disposed on the sidewall and being adjacent to the light incident surface; a middle frame, disposed overlying the light guide plate and the light source; a first latching member, disposed at a side of the middle frame facing toward the back plate and comprising at least one first groove, the first groove being between the light source and the light incident surface; a second latching member, disposed a side of the back plate facing toward the middle frame and comprising at least one second groove, the second groove being disposed opposite to the first groove; and a quantum bar, one end of the quantum bar being latched in the first groove and the other end of the quantum bar being latched in the second groove; wherein an installing groove is formed in a side of the middle frame facing toward the back plate, one end of the installing groove abutting against the sidewall and the other end of the installing groove being located on the light guide plate, the first latching member being installed in the installing groove. The backlight module of claim 1 , wherein the backlight module further comprises a first reflective layer, disposed on a side of the first latching member facing toward the back plate, and between the sidewall and the first groove. The backlight module of claim 1 , wherein the backlight module further comprises a second reflective layer, disposed on a side of the second latching member facing toward the back plate, and between the sidewall and the second groove. The backlight module of claim 3 , wherein the backlight module further comprises a third reflective layer, disposed on a side of the first latching member facing toward the back plate, one end of the third reflective layer abutting against the quantum bar and the other end of the third reflective layer being disposed between the middle frame and the light guide plate. The backlight module of claim 1 , wherein the backlight module further comprises a third reflective layer, disposed on a side of the first latching member facing toward the back plate, one end of the third reflective layer abutting against the quantum bar and the other end of the third reflective layer being disposed between the middle frame and the light guide plate. The backlight module of claim 1 , wherein the backlight module further comprises a light absorbing layer, disposed between the middle frame and the light guide plate. The backlight module of claim 1 , wherein a number of protrusions are disposed on a side of the back plate facing toward the light guide plate, the protrusions have a same height to the second latching member, the light guide plate being disposed on the protrusions, and a light incident end of the light guide plate being disposed on the second latching member. The backlight module of claim 7 , wherein the backlight module further comprises a reflective plate, disposed between the light guide plate and the back plate, one end of the reflective plate abutting against the quantum bar. The backlight module of claim 1 , wherein the backlight module further comprises a reflective plate, disposed between the light guide plate and the back plate, one end of the reflective plate abutting against the quantum bar. A liquid crystal display, comprising a backlight module and a liquid crystal display panel disposed opposite to the backlight module, the backlight module providing light source to the liquid crystal display panel thereby enabling the liquid crystal display panel to display images, the backlight module comprising: a back plate, comprising at least one sidewall; a light guide plate, disposed on the back plate and comprising at least one light incident surface; a light source, disposed on the sidewall and being adjacent to the light incident surface; a middle frame, disposed overlying the light guide plate and the light source; a first latching member, disposed at a side of the middle frame facing toward the back plate and comprising at least one first groove, the first groove being between the light source and the light incident surface; a second latching member, disposed a side of the back plate facing toward the middle frame and comprising at least one second groove, the second groove being disposed opposite to the first groove; and a quantum bar, one end of the quantum bar being latched in the first groove and the other end of the quantum bar being latched in the second groove; wherein an installing groove is formed in a side of the middle frame facing toward the back plate, one end of the installing groove abutting against the sidewall and the other end of the installing groove being located on the light guide plate, the first latching member being installed in the installing groove. The liquid crystal display of claim 10 , wherein the backlight module further comprises a first reflective layer, disposed on a side of the first latching member facing toward the back plate, and between the sidewall and the first groove. The liquid crystal display of claim 10 , wherein the backlight module further comprises a second reflective layer, disposed on a side of the second latching member facing toward the back plate, and between the sidewall and the second groove. The liquid crystal display of claim 12 , wherein the backlight module further comprises a third reflective layer, disposed on a side of the first latching member facing toward the back plate, one end of the third reflective layer abutting against the quantum bar and the other end of the third reflective layer being disposed between the middle frame and the light guide plate. The liquid crystal display of claim 10 , wherein the backlight module further comprises a third reflective layer, disposed on a side of the first latching member facing toward the back plate, one end of the third reflective layer abutting against the quantum bar and the other end of the third reflective layer being disposed between the middle frame and the light guide plate. The liquid crystal display of claim 10 , wherein the backlight module further comprises a light absorbing layer, disposed between the middle frame and the light guide plate. The liquid crystal display of claim 10 , wherein a number of protrusions are disposed on a side of the back plate facing toward the light guide plate, the protrusions have a same height to the second latching member, the light guide plate being disposed on the protrusions, and a light incident end of the light guide plate being disposed on the second latching member. The liquid crystal display of claim 16 , wherein the backlight module further comprises a reflective plate, disposed between the light guide plate and the back plate, one end of the reflective plate abutting against the quantum bar. The liquid crystal display of claim 10 , wherein the backlight module further comprises a reflective plate, disposed between the light guide plate and the back plate, one end of the reflective plate abutting against the quantum bar. A liquid crystal display, comprising a backlight module and a liquid crystal display panel disposed opposite to the backlight module, the backlight module providing light source to the liquid crystal display panel thereby enabling the liquid crystal display panel to display images, the backlight module comprising: a back plate, comprising at least one sidewall; a light guide plate, disposed on the back plate and comprising at least one light incident surface; a light source, disposed on the sidewall and being adjacent to the light incident surface; a middle frame, disposed overlying the light guide plate and the light source; a first latching member, disposed at a side of the middle frame facing toward the back plate and comprising at least one first groove, the first groove being between the light source and the light incident surface; a second latching member, disposed a side of the back plate facing toward the middle frame and comprising at least one second groove, the second groove being disposed opposite to the first groove; and a quantum bar, one end of the quantum bar being latched in the first groove and the other end of the quantum bar being latched in the second groove; wherein a number of protrusions are disposed on a side of the back plate facing toward the light guide plate, the protrusions have a same height to the second latching member, the light guide plate being disposed on the protrusions, and a light incident end of the light guide plate being disposed on the second latching member. The liquid crystal display of claim 19 , wherein the backlight module further comprises a reflective plate, disposed between the light guide plate and the back plate, one end of the reflective plate abutting against the quantum bar. |
| CPC Classification | Non-Electric Light Sources Using Luminescence;Light Sources Using Electrochemiluminescence;Light Sources Using Charges Of Combustible Material;Light Sources Using Semiconductor Devices As Light-Generating Elements;Light Sources Not Otherwise Provided For Functional Features Or Details Of Lighting Devices Or Systems Thereof;Structural Combinations Of Lighting Devices With Other Articles; Not Otherwise Provided For 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 Indexing Scheme Associated With Subclasses F21k; F21l; F21s And F21v; Relating To The Form Or The Kind Of The Light Sources Or Of The Colour Of The Light Emitted OPTICAL ELEMENTS; SYSTEMS OR APPARATUS |
| Examiner | Richard Kim |
| Extended Family | 061-436-408-910-121 181-562-428-263-388 010-798-915-254-075 028-586-733-146-056 077-259-367-022-676 |
| Patent ID | 9658381 |
| Inventor/Author | Fan Yong |
| IPC | G02F1/1333 F21V8/00 H01L33/50 |
| Status | Active |
| Owner | Shenzhen China Star Optoelectronics Technology Co. Ltd |
| Simple Family | 181-562-428-263-388 061-436-408-910-121 010-798-915-254-075 028-586-733-146-056 077-259-367-022-676 |
| CPC (with Group) | F21K9/27 F21V7/22 F21V9/08 F21V17/164 G02F1/133605 F21Y2101/00 G02B6/0091 G02B6/00 G02B6/0031 G02B6/0055 G02B6/0088 H10H20/851 H10H20/8515 G02B6/0026 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent/New European patent specification (amended specification after opposition procedure) |
