DISPLAY DEVICE

Abstract

The present invention realizes both the reduction of thickness of a liquid crystal panel and the acquisition of a sufficient strength of the liquid crystal display panel simultaneously. A display device including a display panel includes a first substrate, a second substrate which is arranged to face the first substrate in an opposed manner on a side closer to a viewer than the first substrate, an upper polarizer which is arranged on the side closer to the viewer than the second substrate, and a resin film which is arranged on the side closer to the viewer than the upper polarizer and is brought into close contact with the upper polarizer by adhesion, wherein an outer periphery of the upper polarizer is arranged more inside than an outer periphery of the second substrate, and an outer periphery of the resin film is arranged more outside than the outer periphery of the upper polarizer as viewed from a front surface of the display panel, and a cushion material which is brought into close contact with the second substrate and the resin film is interposed between the second substrate and the resin film more outside than the outer periphery of the upper polarizer.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic plan view showing the schematic constitution of a liquid crystal display panel of an embodiment 1 according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along a line A-A′ in FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along a line B-B′ in FIG. 1;

FIG. 4 is a schematic view for explaining the manner of operation and advantageous effects of a liquid crystal display device of the embodiment 1;

FIG. 5 is a schematic front view showing the schematic constitution of a display part of a conventional mobile phone terminal;

FIG. 6 is a schematic front view showing the schematic constitution of a display part of a mobile phone terminal in which a liquid crystal display device of the embodiment 1 is used;

FIG. 7 is a view in which a cross-sectional view taken along a line C-C′ in FIG. 5 and a cross-sectional view taken along a line D-D′ in FIG. 6 are arranged in parallel in the lateral direction;

FIG. 8 is a schematic cross-sectional view for explaining a first modification of the liquid crystal display device of the embodiment 1;

FIG. 9 is a schematic cross-sectional view for explaining a second modification of the liquid crystal display device of the embodiment 1;

FIG. 10 is a schematic cross-sectional view for explaining a third modification of the liquid crystal display device of the embodiment 1;

FIG. 11 is a schematic cross-sectional view for explaining a fourth modification of the liquid crystal display device of the embodiment 1;

FIG. 12 is a schematic cross-sectional view for explaining a variation of the embodiment 1;

FIG. 13 is a schematic plan view showing the schematic constitution of a liquid crystal display device of an embodiment 2 according to the present invention;

FIG. 14 is a schematic cross-sectional view taken along a line E-E′ in FIG. 13;

FIG. 15 is a schematic cross-sectional view for explaining a modification of the liquid crystal display device of the embodiment 2;

FIG. 16 is a schematic plan view showing one example of a pattern of a conductive film which is formed on a resin film;

FIG. 17 is a schematic plan view showing the schematic constitution of a liquid crystal display device of an embodiment 3 according to the present invention; and

FIG. 18 is a schematic cross-sectional view taken along a line F-F′ in FIG. 17.

Claims

1. A display device including a display panel comprising: a first substrate,a second substrate which is arranged to face the first substrate in an opposed manner on a side closer to a viewer than the first substrate,an upper polarizer which is arranged on the side closer to the viewer than the second substrate, anda resin film which is arranged on the side closer to the viewer than the upper polarizer and is brought into close contact with the upper polarizer by adhesion, whereinan outer periphery of the upper polarizer is arranged more inside than an outer periphery of the second substrate and an outer periphery of the resin film is arranged more outside than the outer periphery of the upper polarizer as viewed from a front surface of the display panel, anda cushion material which is brought into close contact with the second substrate and the resin film is interposed between the second substrate and the resin film more outside than the outer periphery of the upper polarizer.

2. A display device according to claim 1, wherein the cushion material is formed in an annular shape to surround the outer periphery of the upper polarizer.

3. A display device according to claim 1, wherein the display panel is housed in a box-like or a frame-like support member, and the cushion material is brought into close contact with a side of an inner surface of the support member.

4. A display device according to claim 1, wherein the resin film has a thickness of 0.2 mm or more and 2 mm or less.

5. A display device according to claim 1, wherein a material of the resin film is an acrylic resin or an epoxy resin.

6. A display device according to claim 1, wherein a surface hardness of the resin film is a surface pencil hardness of 3 H or more.

7. A display device according to claim 1, wherein a total thickness of the display panel excluding the resin film is 1.4 mm or less.

8. A display device according to claim 1, wherein the display panel includes an upper retardation plate between the upper polarizer and the second substrate.

9. A display device according to claim 1, wherein the display panel includes a lower polarizer which is arranged behind the first substrate as viewed from the viewer.

10. A display device according to claim 9, wherein the display panel includes a lower retardation plate between the lower polarizer and the first substrate.

11. A display device according to claim 1, wherein the first substrate and the second substrate are glass substrates.

12. A display device according to claim 1, wherein the display panel includes a liquid crystal layer between the first substrate and the second substrate.

13. A display device comprising: a display panel which includes a first substrate, a second substrate which is arranged to face the first substrate in an opposed manner on a side closer to a viewer than the first substrate, an upper polarizer which is arranged on the side closer to the viewer than the second substrate, and a resin film which is arranged on the side closer to the viewer than the upper polarizer and is brought into close contact with the upper polarizer by adhesion,a box-like or a frame-like support member which houses the display panel, anda frame member which is arranged outside the support member, whereinan outer periphery of the upper polarizer is arranged more inside than an outer periphery of the second substrate and an outer periphery of the resin film is arranged more outside than the outer periphery of the upper polarizer as viewed from a front surface of the display panel,the frame member is arranged between the second substrate and the resin film as viewed from the viewer and includes a portion which is overlapped to the second substrate and the resin film as viewed from a front surface of the display panel,a first cushion material which is respectively brought into close contact with the second substrate and the frame member is interposed between the second substrate and the portion of the frame member which is overlapped to the second substrate, anda second cushion material which is respectively brought into close contact with the resin film and the frame member is interposed between the resin film and the portion of the frame member which is overlapped to the resin film.

14. A display device according to claim 13, wherein the first cushion material and the second cushion material are formed in an annular shape to surround the outer periphery of the upper polarizer.

15. A display device according to claim 13, wherein the resin film has a thickness of 0.2 mm or more and 2 mm or less.

16. A display device according to claim 13, wherein a material of the resin film is an acrylic resin or an epoxy resin.

17. A display device according to claim 13, wherein a surface hardness of the resin film is a surface pencil hardness of 3 H or more.

18. A display device according to claim 13, wherein a total thickness of the display panel excluding the resin film is 1.4 mm or less.

19. A display device according to claim 13, wherein the display panel includes a conductive layer between the upper polarizer and the resin film.

20. A display device according to claim 13, wherein the display panel includes an upper retardation plate between the upper polarizer and the second substrate.

21. A display device according to claim 13, wherein the display panel includes a lower polarizer which is arranged behind the first substrate as viewed from the viewer.

22. A display device according to claim 21, wherein the display panel includes a lower retardation plate between the lower polarizer and the first substrate.

23. A display device according to claim 13, wherein the first substrate and the second substrate are glass substrates.

24. A display device according to claim 13, wherein the display panel includes a liquid crystal layer between the first substrate and the second substrate.

25. A display device comprising: a display panel which includes a first substrate, a second substrate which is arranged to face the first substrate in an opposed manner on a side closer to a viewer than the first substrate, an upper polarizer which is arranged on the side closer to the viewer than the second substrate, and a resin film which is arranged on the side closer to the viewer than the upper polarizer and is brought into close contact with the upper polarizer by adhesion,a box-like or a frame-like support member which houses the display panel, anda frame member which is arranged outside the support member, whereinan outer periphery of the upper polarizer is arranged more inside than an outer periphery of the second substrate and an outer periphery of the resin film is arranged more inside than the outer periphery of the upper polarizer as viewed from a front surface of the display panel,the frame member is arranged in front of the upper polarizer as viewed from the viewer and includes a portion which is overlapped to the upper polarizer and a portion which is overlapped to the second substrate outside the outer periphery of the upper polarizer as viewed from the front surface of the display panel, anda cushion material which is brought into close contact with the upper polarizer and the frame member in a region more inside than the outer periphery of the upper polarizer and is brought into close contact with the second substrate and the frame member in a region more outside than the outer periphery of the upper polarizer is interposed between the upper polarizer and the portion of the frame member which is overlapped to the upper polarizer and the second substrate and the portion of the frame member which is overlapped to the second substrate.

26. A display device according to claim 25, wherein the cushion material is formed in an annular shape to surround the outer periphery of the upper polarizer.

27. A display device according to claim 25, wherein the resin film has a thickness of 0.2 mm or more and 2 mm or less.

28. A display device according to claim 25, wherein a material of the resin film is an acrylic resin or an epoxy resin.

29. A display device according to claim 25, wherein a surface hardness of the resin film is a surface pencil hardness of 3 H or more.

30. A display device according to claim 25, wherein a total thickness of the display panel excluding the resin film is 1.4 mm or less.

31. A display device according to claim 25, wherein the display panel includes an upper retardation plate between the upper polarizer and the second substrate.

32. A display device according to claim 25, wherein the display panel includes a lower polarizer which is arranged behind the first substrate as viewed from the viewer.

33. A display device according to claim 32, wherein the display panel includes a lower retardation plate between the lower polarizer and the first substrate.

34. A display device according to claim 25, wherein the first substrate and the second substrate are glass substrates.

35. A display device according to claim 25, wherein the display panel includes a liquid crystal layer between the first substrate and the second substrate.