# US 8,783,930 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,930 B2 - Document ID: US8783930B2 - Status: Granted - Kind: B2 - Application number: 13/440,562 - Filed: 2012-04-05 - Published: 2012-10-11 - Granted: 2014-07-22 - Earliest claimed: 2011-04-05 - Assignees: LG Innotek Co., Ltd. - Applicants: Seung Ryong Park; Hyun Ho Choi; Gi Seok Lee - Inventors: Seung Ryong Park; Hyun Ho Choi; Gi Seok Lee - Web page: https://patentgrep.com/patent/US8783930B2 ## CPC - G02B 6/0026: {Wavelength selective element, sheet or layer, e.g. filter or grating} - G02B 6/0068: {Arrangements of plural sources, e.g. multi-colour light sources} - G02B 6/0073: {Light emitting diode [LED]} - G02B 6/009: {of the light source in the package (G02B6/0021 takes precedence)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract Disclosed is a display device. The display device includes a light source, a light guide part to receive a light emitted from the light source, a light conversion member between the light source and the light guide part, and a spacer between the light source and the light conversion member. ## Claims ### Claim 1 A display device comprising: a light source; a light guide part to receive a light emitted from the light source; a light conversion member between the light source and the light guide part; a spacer between the light source and the light conversion member; and a display panel on the light guide part, wherein an effective display region to display an image is defined in the display panel provided on the light guide part, wherein a central region corresponding to the effective display region and an outer region around the central region are defined in the light guide part, and wherein the light conversion member is provided in the outer region. ### Claim 2 (depends on 1) The display device of claim 1, wherein the spacer has a width in a range of about 200 μm to about 2.5 mm. ### Claim 3 (depends on 2) The display device of claim 2, wherein the spacer adheres to the light conversion member and the light source. ### Claim 4 (depends on 1) The display device of claim 1, wherein the spacer has a refractive index corresponding to a refractive index of the light guide part. ### Claim 5 (depends on 1) The display device of claim 1, further comprising a support part extending from the spacer to the light guide part. ### Claim 6 (depends on 5) The display device of claim 5, wherein the spacer, the support part, and the light guide part are integrally formed with each other. ### Claim 7 A display device comprising: a light guide plate; a light source at one side of the light guide plate; a light conversion member in a groove defined in the light guide plate; and a display panel on the light guide plate, wherein an effective display region to display an image is defined in the display panel provided on the light guide plate, wherein a central region corresponding to the effective display region and an outer region around the central region are defined in the light guide plate, and wherein the light conversion member is provided in the outer region. ### Claim 8 (depends on 7) The display device of claim 7, further comprising an adhering member filled in the groove to adhere to the light conversion member and an inner lateral side of the groove. ### Claim 9 (depends on 7) The display device of claim 7, wherein the light guide plate comprises: a spacer between the light source and the light conversion member; and a light guide part in which the light conversion member is sandwiched between the spacer and the light guide part. ### Claim 10 (depends on 9) The display device of claim 9, wherein the light guide plate further comprises a first support part extending from the spacer to the light guide part while supporting the light conversion member. ### Claim 11 (depends on 10) The display device of claim 10, wherein the light guide plate further comprises a second support part facing the first support part while interposing the light conversion member therebetween. ### Claim 12 The display device 7, wherein the groove comprises a first inner lateral side inclined with respect to a top surface of the light guide plate, and a distance between the first inner lateral side and the light conversion member is gradually decreased as the groove becomes deeper. ### Claim 13 (depends on 7) The display device of claim 7, wherein a first groove is formed in a top surface of the light guide plate, and a second groove is formed in a bottom surface provided in opposition to the top surface of the light guide plate, and wherein the light conversion member comprises: a first light conversion member in the first groove; and a second light conversion member in the second groove. ### Claim 14 (depends on 13) The display device of claim 13, wherein the first and second light conversion members are overlapped with each other when viewed from the light source. ### Claim 15 A display device comprising: a light guide plate; a light source to emit a light to the light guide plate; a light conversion member in the light guide plate; and a display panel on the light guide plate, wherein the light guide plate directly adheres to at least one surface of the light conversion member, wherein an effective display region to display an image is defined in the display panel provided on the light guide plate, wherein a central region corresponding to the effective display region and an outer region around the central region are defined in the light guide plate, and wherein the light conversion member is provided in the outer region. ### Claim 16 (depends on 15) A display device of claim 15, wherein the light guide plate comprises: a light incident part adhering to an incident surface of the light conversion member; and a light guide part adhering to an exit surface of the light conversion member, which is provided in opposition to the incident surface. ### Claim 17 (depends on 16) The display device of claim 16, wherein the light guide plate further comprises: a first support part integrally formed with the light incident part and the light guide part; and a second support part integrally formed with the light incident part and the light guide part, wherein the light conversion member is sandwiched between the first and second support parts. ### Claim 18 (depends on 15) The display device of claim 15, wherein an incident surface of the light conversion member is exposed out of the light guide plate, and the incident surface is provided in opposition to the light source. ### Claim 19 (depends on 18) The display device of claim 18, wherein the light conversion member comprises an exit surface provided in opposition to the incident surface, and the exit surface directly adheres to the light guide plate.