Display device

• US 9,442,585 B2
• Filed: 11/15/2012
• Issued: 09/13/2016
• Est. Priority Date: 05/29/2012
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Min, Byeongjo, Park, Sangryeon, Park, Sangha
• Primary Examiner(s): Li, Lin
• Application Number:
  US13/678,252
• Publication Number:
  US 20130321293A1
• Time in Patent Office: 1,398 Days
• Field of Search: 349/96, 349/117
• US Class Current: 1/1
• CPC Class Codes: G02B 6/0055 Reflecting element, sheet or layer
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G02F 2201/123 pixel
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires

Abstract

Disclosed is a display device capable of decreasing a bezel width, wherein the display device comprises a display panel; a cover glass on an upper surface of the display panel; a housing member for receiving the display panel, and covering lateral and rear sides of the display panel and a lateral side of the cover glass; and a touch sensing film for sealing a gap between the lateral side of the cover glass and the housing member, the touch sensing film adhered to a lower surface of the cover glass.

Claims

1. A display device comprising:

a display panel;

a cover glass on an upper surface of the display panel;

a backlight unit that emits light to the display panel;

a housing member that receives the backlight unit and the display panel, and covers lateral and rear sides of the backlight unit and a lateral side of the cover glass, the housing member including a guide panel supporting a peripheral region of a lower surface of the display panel and defining a receiving position of the backlight unit, a support case receiving the backlight unit and the guide panel, and a lateral housing covering the lateral side of the cover glass and a lateral side of the support case; and

a touch sensing film that seals a gap between the lateral side of the cover glass and the lateral housing, the touch sensing film comprising a touch sensor adhered to a lower surface of the cover glass and an extending portion perpendicular to the touch sensor,

wherein the cover glass overlaps the extending portion and the gap is disposed immediately above the extending portion of the touch sensing film, the extending portion of the touch sensing film disposed between the lateral housing and the support case, and

wherein the backlight unit includes a reflective sheet received in the support case and adhered to a lower surface of the guide panel.

2. The display device according to claim 1, wherein

the touch sensor of the touch sensing film is supported on the upper surface of the display panel, and

the extending portion seals the gap and extends from the each of both lateral sides of the touch sensor to be longer than the cover glass.

3. The display device according to claim 2, wherein the extending portion extends from the each of both lateral sides of the touch sensor, and is bent to cover the lateral side of the display panel, and is adhered to the housing member.

4. The display device according to claim 2,

wherein the touch sensing film includes upper and lower films with sensing electrode lines, the upper and lower films confronting each other and bonded to each other, and

wherein the extending portion extends from at least any one of the upper and low films.

5. The display device according to claim 4, wherein the extending portion extends from each of both lateral sides of the touch sensor to correspond with both long lateral sides of the cover glass.

6. The display device according to claim 2,

wherein the touch sensing film further includes a light-leakage prevention member provided in an inner lateral side of the extending portion confronting the lateral side of the display panel and the lateral side of the support case, and

the light-leakage prevention member comprises one of a coating layer coated on the inner lateral side of the extending portion, or a tape adhered to the inner lateral side of the extending portion.

7. The display device according to claim 2, wherein the housing member further

includes a rear housing that receives the support case therein, and

wherein the lateral housing is combined with a lateral side of the rear housing, and covers respective lateral sides of the support case, the display panel and the cover glass.

8. The display device according to claim 7, wherein the extending portion of the touch sensing film is adhered to an inner lateral side of the lateral housing.

9. The display device according to claim 7,

wherein the support case includes a support plate, placed onto the rear housing, that supports the reflective sheet, and a support sidewall, vertically bent from an end of the support plate, that covers the lateral side of the guide panel, and

the extending portion of the touch sensing film is adhered to an external lateral side of the support sidewall.

10. The display device according to claim 9, wherein the extending portion of the touch sensing film extends to cover the support sidewall and a lower edge portion of the support plate, and is adhered to the lower edge portion of the support plate.

11. The display device according to claim 2, wherein the housing member further:

includes a housing cover including a rear cover that receives the reflective sheet therein, and

wherein the lateral housing is vertically bent from the rear cover, and covers respective lateral sides of the support case, the display panel and the cover glass.

12. The display device according to claim 11,

wherein the support case includes a support plate, placed onto the housing cover, that supports the reflective sheet, and a support sidewall, vertically bent from an end of the support plate, that covers the lateral side of the guide panel, and

the extending portion of the touch sensing film is adhered to an external lateral side of the support sidewall.

13. The display device according to claim 11,

wherein the extending portion of the touch sensing film is adhered to an inner lateral side of the lateral cover.

14. The display device according to claim 1, further comprising an adhesive member, wherein the support case includes a support sidewall extending parallel to the extending portion of the touch sensing film, the adhesive member disposed between the support sidewall of the support case and the extending portion of the touch sensing film to attach the extending portion of the touch sensing film to the support side wall of the support case.

15. The display device according to claim 1,

wherein the housing member further includes a rear housing comprising a hook-receiving groove disposed in the external lateral side of the rear housing,

wherein the lateral housing comprises a hook projection disposed in an inner lateral side of the lateral housing, and

wherein the hook projection inserts into the hook-receiving groove.

16. The display device according to claim 1,

wherein the touch sensing film includes a plurality of the extending portions, and

wherein the extending portions are extended from both lateral sides of the touch sensor respectively, and disposed a support sidewall of the support case and a lower edge portion of the support case.

17. The display device according to claim 1,

wherein the touch sensing film includes a plurality of the extending portions, and

wherein the respective extending portions include a first bending portions for covering the lateral side of the display panel and a support sidewall of the support case and a second bending portions for covering a lower edge portions of the support case.