# US 9,753,316 B2 · Supporting base and display device employing the same

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- Number: US 9,753,316 B2
- Document ID: US9753316B2
- Status: Granted
- Kind: B2
- Application number: 14/923,725
- Filed: 2015-10-27
- Published: 2016-02-18
- Granted: 2017-09-05
- Earliest claimed: 2011-07-01
- Assignees: Au Optronics Corporation
- Applicants: Au Optronics Corp.
- Inventors: Nan-Jui Chen; Yun-Wei Tsai; Wen-Hung Huang; Chih-Liang Pan; Ming-Sheng Lai
- Web page: https://patentgrep.com/patent/US9753316B2

## CPC

- H05K 5/02: Details
- A47B 81/06: Furniture aspects of radio, television, gramophone, or record cabinets {(for similar equipment supports attached to the wall or ceiling or floor stands F16M)}
- G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels}
- G02F 1/133314: {Back frames}
- G02F 1/133317: {Intermediate frames, e.g. between backlight housing and front frame}
- G02F 1/13332: {Front frames}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B)
- 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

## Abstract

A supporting base includes a bottom plate and a plurality of stepwise supporting structures connected with and raised up from a plurality of side edges of the bottom plate. Each stepwise supporting structure includes a plurality of raising segments and at least one supporting segment. The plurality of raising segments and the at least one supporting segment are alternately arranged. The at least one supporting segment is substantially parallel to the bottom plate. The lowest raising segment has a bottom end connected with one of the side edges of the bottom plate. A thickness of at least one of the at least one supporting segment is greater than that of at least one of the plurality of raising segments. A display device using the support base is also provided to improve assembling efficiency and reduce cost.

## Claims

### Claim 1

A supporting base for a display device, the supporting base comprising:
a bottom plate having a plurality of side edges; and
a plurality of stepwise supporting structures respectively connected with the side edges and raised up from the bottom plate, each stepwise supporting structure comprising:
a first raising segment having a bottom end connected with one of the side edges of the bottom plate;
a first supporting segment being substantially parallel to the bottom plate and extending outwards of the bottom plate from a top end of the first raising segment, the first supporting segment having an inner end connected with the top end of the first raising segment;
a second raising segment raised up from the first supporting segment and having a bottom end connected with an outer end of the first supporting segment far away from the first raising segment;
wherein if a thickness of the bottom plate is represented by D1, a thickness of the first supporting segment is represented by D2, a thickness of the first raising segment is represented by E1, and a thickness of the second raising segment is represented by E2, then the relationship between D1, D2, E1 and E2 is limited by E1<D1, E1<D2, and E2<D2, wherein the bottom plate and the stepwise supporting structures are made of a light reflective material, a thickness of the light reflective material is in positive correlation to a reflectivity of the light reflective material, and the reflectivity of at least one of the at least one supporting segment is greater than the reflectivity of at least one of the plurality of raising segments.

### Claim 2 (depends on 1)

The supporting base according to claim 1, wherein each stepwise supporting structure further comprises a second supporting segment, the second supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the second raising segment, and the second supporting segment has an inner end connected with the top end of the second raising segment, if a thickness of the second supporting segment is represented by D3, then the relationship between D3 and E2 is limited by E2<D3.

### Claim 3 (depends on 2)

The supporting base according to claim 2, wherein each stepwise supporting structure further comprises a third raising segment, the third raising segment is raised up from the second supporting segment, and the third raising segment has a bottom end connected with an outer end of the second supporting segment far away from the second raising segment, if a thickness of the third raising segment is represented by E3, then the relationship between D3 and E3 is limited by E3<D3.

### Claim 4 (depends on 3)

The supporting base according to claim 3, wherein each stepwise supporting structure further comprises a third supporting segment, the third supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the third raising segment, and the third supporting segment has an inner end connected with the top end of the third raising segment, if a thickness of the third supporting segment is represented by D4, then the relationship between D4 and E3 is limited by E3<D4.

### Claim 5 (depends on 4)

The supporting base according to claim 4, wherein the relationship between D1, D2, D3, D4, E1, E2 and E3 is limited by 0.3≦E1/D1<1, 0.3≦E1/D2<1, 0.3≦E2/D2<1, 0.3≦E2/D3<1, 0.3≦E3/D3<1, and 0.3≦E3/D4<1.

### Claim 6 (depends on 1)

The supporting base according to claim 1, wherein the bottom plate and the stepwise supporting structures are made by processing a white foamed polyethylene terephthalate sheet.

### Claim 7

A display device comprising:
a supporting base comprising:
a bottom plate having a plurality of side edges; and
a plurality of stepwise supporting structures respectively connected with the side edges and raised up from the bottom plate, each stepwise supporting structure comprising a first raising segment, a first supporting segment, and a second raising segment, the first raising segment having a bottom end connected with one of the side edges of the bottom plate, the first supporting segment being substantially parallel to the bottom plate and extending outwards of the bottom plate from a top end of the first raising segment, the first supporting segment having an inner end connected with the top end of the first raising segment, the second raising segment being raised up from the first supporting segment and having a bottom end connected with an outer end of the supporting segment far away from the first raising segment, wherein if a thickness of the bottom plate is represented by D1, a thickness of the first supporting segment is represented by D2, a thickness of the first raising segment is represented by E1, and a thickness of the second raising segment is represented by E2, then the relationship between D1, D2, E1 and E2 is limited by E1<D1, E1<D2, and E2<D2, wherein the bottom plate and the stepwise supporting structures are made of a light reflective material, a thickness of the light reflective material is in positive correlation to a reflectivity of the light reflective material, and the reflectivity of at least one of the at least one supporting segment is greater than the reflectivity of at least one of the plurality of raising segments;
a light guide plate disposed on the bottom plate; and
a display panel disposed above the light guide plate.

### Claim 8 (depends on 7)

The display device according to claim 7, further comprising a bottom cover, wherein the supporting base is disposed on the bottom cover, a bottom end of the bottom cover has at least one locating post, the first supporting segment of at least one of the stepwise supporting structures is defined with at least one locating hole corresponding to the at least one locating post, the at least one locating post is inserted into the at least one locating hole.

### Claim 9 (depends on 7)

The display device according to claim 7, wherein at least one of the first raising segments of the stepwise supporting structures is defined with a groove, the light guide plate is inserted into the groove.

### Claim 10 (depends on 7)

The display device according to claim 7, wherein each stepwise supporting structure further comprises a second supporting segment, the second supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the second raising segment, and the second supporting segment has an inner end connected with the top end of the second raising segment, if a thickness of the second supporting segment is represented by D3, then the relationship between D3 and E2 is limited by E2<D3, the display device further comprises a plurality of optical films and a fixing element, the optical films are disposed on the light guide plate, the display panel is disposed on the first supporting segments of the stepwise supporting structures, the fixing element wraps a peripheral region of the display panel, an outer side of each stepwise supporting structure far away from the display panel and a peripheral region of the bottom plate, and the fixing element is connected to the second supporting segment.

### Claim 11 (depends on 7)

The display device according to claim 7, wherein each stepwise supporting structure further comprises a second supporting segment and a third raising segment, the second supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the second raising segment, and the second supporting segment has an inner end connected with the top end of the second raising segment, if a thickness of the second supporting segment is represented by D3, then the relationship between D3 and E2 is limited by E2<D3, the third raising segment is raised up from the second supporting segment, and the third raising segment has a bottom end connected with an outer end of the second supporting segment, if a thickness of the third raising segment is represented by E3, then the relationship between D3 and E3 is limited by E3<D3, the display panel is disposed on the second supporting segments of the stepwise supporting structures, the display device further comprises a plurality of optical films and a fixing element, the optical films are disposed on the first supporting segments of the stepwise supporting structures, the fixing element wraps a peripheral region of the display panel, an outer side of each stepwise supporting structure far away from the display panel and a peripheral region of the bottom plate, and the fixing element is connected to the third raising segment.

### Claim 12 (depends on 7)

The display device according to claim 7, wherein each stepwise supporting structure further comprises a second supporting segment, the second supporting segment is connected with a top end of the second raising segment, the display device further comprises a plurality of optical films and a bottom cover, the optical films are disposed on the first supporting segments of the stepwise supporting structures, the supporting base is disposed on the bottom cover, a bottom of the bottom cover has at least one locating post, the first supporting segment of at least one of the stepwise supporting structures is defined with at least one first locating hole corresponding to the at least one locating post, each optical film is defined with at least one second locating hole corresponding to the at least one locating post, and the at least one locating post is inserted into the at least one first locating hole and the at least one second locating hole.

### Claim 13 (depends on 7)

The display device according to claim 7, wherein each stepwise supporting structure further comprises a second supporting segment, the second supporting segment is connected with a top end of the second raising segment, at least one of the second supporting segments of the stepwise supporting structures is defined with a groove, the display device further comprises a plurality of optical films, the optical films are disposed on the first supporting segments of the stepwise supporting structures and inserted into the groove.

### Claim 14 (depends on 7)

The display device according to claim 7, wherein each stepwise supporting structure further comprises a second supporting segment, a third raising segment and a third supporting segment, the second supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the second raising segment, the second supporting segment has an inner end connected with the top end of the second raising segment, if a thickness of the second supporting segment is represented by D3, then the relationship between D3 and E2 is limited by E2<D3, the third raising segment is raised up from the second supporting segment, and the third raising segment has a bottom end connected with an outer end of the second supporting segment, if a thickness of the third raising segment is represented by E3, then the relationship between D3 and E3 is limited by E3<D3, the third supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the third raising segment, and the third supporting segment has an inner end connected with the top end of the third raising segment, if a thickness of the third supporting segment is represented by D4, then the relationship between D4 and E3 is limited by E3<D4, the display panel is disposed on the second supporting segments of the stepwise supporting structures, the display device further comprises a plurality of optical films and a fixing element, the optical films are disposed on the first supporting segments of the stepwise supporting structures, the fixing element wraps a peripheral region of the display panel, an outer side of each stepwise supporting structure far away from the display panel and a peripheral region of the bottom plate, and the fixing element is connected to the third supporting segment.

### Claim 15 (depends on 7)

The display device according to claim 7, wherein the bottom plate and the stepwise supporting structures are made by processing a white foamed polyethylene terephthalate sheet.

### Claim 16

A supporting base for a display device, the supporting base comprising:
a bottom plate having a plurality of side edges; and
a plurality of stepwise supporting structures connected with the side edges and raised up from the bottom plate, each stepwise supporting structure comprising a first raising segment, a first supporting segment, and a second raising segment, the first raising segment having a bottom end connected with one of the side edges of the bottom plate, the first supporting segment being substantially parallel to the bottom plate and extending outwards of the bottom plate from a top end of the first raising segment, the first supporting segment has an inner end connected with the top end of the first raising segment, the second raising segment being raised up from the first supporting segment and having a bottom end connected with an outer end of the first supporting segment far away from the first raising segment;
wherein the bottom plate and the stepwise supporting structures are made of a light reflective material, a thickness of the light reflective material is in positive correlation to a reflectivity of the light reflective material, and the reflectivity of at least one of the at least one supporting segment is greater than the reflectivity of at least one of the plurality of raising segments;
wherein if the reflectivity of the bottom plate is represented by R1, the reflectivity of the first supporting segment is represented by R2, the reflectivity of the first raising segment is represented by S1 and the reflectivity of the second raising segment is represented by S2, then the relationship between R1, R2, S1 and S2 is limited by S1<R1, S1<R2, and S2<R2.

### Claim 17 (depends on 16)

The supporting base according to claim 16, wherein each stepwise supporting structure further comprises a second supporting segment, the second supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the second raising segment, and the second supporting segment has an inner end connected with the top end of the second raising segment, if the reflectivity of the second supporting segment is represented by R3, then the relationship between R3 and S2 is limited by S2<R3.

### Claim 18 (depends on 17)

The supporting base according to claim 17, wherein each stepwise supporting structure further comprises a third raising segment, the third raising segment is raised up from the second supporting segment, and the third raising segment has a bottom end connected with an outer end of the second supporting segment far away from the second raising segment, if the reflectivity of the third raising segment is represented by S3, then the relationship between R3 and S3 is limited by S3<R3.

### Claim 19 (depends on 18)

The supporting base according to claim 18, wherein each stepwise supporting structure further comprises a third supporting segment, the third supporting segment is substantially parallel to the bottom plate and extends outwards of the bottom plate from a top end of the third raising segment, and the third supporting segment has an inner end connected with the top end of the third raising segment, if the reflectivity of the third supporting segment is represented by R4, then the relationship between R4 and S3 is limited by S3<R4.

### Claim 20 (depends on 19)

The supporting base according to claim 19, wherein the relationship between R1, R2, R3, R4, S1, S2 and S3 is limited by 0.8≦S1/R1<1, 0.8≦S1/R2<1, 0.8≦S2/R2<1, 0.8≦S2/R3<1, 0.8≦S3/R3<1, and 0.8≦S3/R4<1.

### Claim 21 (depends on 16)

The supporting base according to claim 16, wherein the bottom plate and the stepwise supporting structures are made by processing a white foamed polyethylene terephthalate sheet.