Organic EL display device and liquid crystal display device
View Patent ↗The invention provides an organic EL display device that, even if bent, is not prone to plastic deformation and has improved moisture blocking characteristics. An organic EL display device includes: a glass substrate; an organic EL layer formed on an upper side of the glass substrate; and a support substrate glued on a lower side of the glass substrate via a first adhesive. Recessed portions or projecting portions are formed on the glass substrate at a side thereof facing the support substrate. The recessed portions or a space between each of the projecting portions is filled with the first adhesive.
1. An organic EL display device comprising:
a glass substrate;
an organic EL layer formed on an upper side of the glass substrate;
a support substrate glued on a lower side of the glass substrate via a first adhesive;
a glass-made counter substrate covering the organic EL layer; and
a polarizing plate glued on an upper side of the counter substrate via a second adhesive,
wherein first recessed portions or first projecting portions are formed on the glass substrate at a side thereof facing the support substrate,
wherein the first recessed portions or a space between each of the first projecting portions is filled with the first adhesive, and
wherein second recessed portions or second projecting portions are formed on the counter substrate at a side thereof facing the polarizing plate.
2. The organic EL display device of claim 1 , wherein the first recessed portions are formed at intervals, and wherein if a thickness of the glass substrate is assumed to be t and a depth of the first recessed portions is assumed to be h 1 , h 1 /t is determined such that 0.001≤h 1 /t≤0.1.
3. The organic EL display device of claim 1 , wherein the first projecting portions are formed at intervals, and wherein if a thickness of the glass substrate is assumed to be t and a height of the first projecting portions is assumed to be h 2 , h 2 /t is determined such that 0.001≤h 2 /t≤0.1.
4. The organic EL display device of claim 1 , wherein the second recessed portions are formed at intervals, and wherein if a thickness of the counter substrate is assumed to be t and a depth of the second recessed portions is assumed to be h 1 , h 1 /t is determined such that 0.001≤h 1 /t≤0.1.
5. The organic EL display device of claim 1 , wherein the second projecting portions are formed at intervals, and wherein if the thickness of the counter substrate is assumed to be t and a height of the second projecting portions is assumed to be h 2 , h 2 /t is determined such that 0.001≤h 2 /t≤0.1.
6. The organic EL display device of claim 1 , wherein the organic EL display device is bent, and wherein a density of the first recessed portions, the first projection portions, the second recessed portions, or the second projecting portions at the center of the bending is larger than in other regions.
7. An organic EL display device comprising:
a glass substrate;
a resin substrate formed on an upper side of the glass substrate;
an organic EL layer formed on an upper side of the resin substrate;
a support substrate glued on a lower side of the glass substrate via a first adhesive;
a glass-made counter substrate covering the organic EL layer; and
a polarizing plate glued on the counter substrate via a second adhesive,
wherein first recessed portions or first projecting portions are formed on the glass substrate at a side thereof facing the support substrate, and
wherein the first recessed portions are filled with the first adhesive, and
wherein second recessed portions or second projecting portions are formed on the counter substrate at a side thereof facing the polarizing plate.
8. The organic EL display device of claim 7 , wherein the first recessed portions are formed at intervals, and wherein if a thickness of the glass substrate is assumed to be t and a depth of the first recessed portions is assumed to be h 1 , h 1 /t is determined such that 0.001≤h 1 /t≤0.1.
9. The organic EL display device of claim 7 , wherein the first projecting portions are formed at intervals, and wherein if a thickness of the glass substrate is assumed to be t and a height of the first projecting portions is assumed to be h 2 , h 2 /t is determined such that 0.001≤h 2 /t≤0.1.
10. The organic EL display device of claim 7 , wherein the second recessed portions are formed at intervals, and wherein if a thickness of the counter substrate is assumed to be t and a depth of the second recessed portions is assumed to be h 1 , h 1 /t is determined such that 0.001≤h 1 /t≤0.1.
11. The organic EL display device of claim 7 , wherein the second projecting portions are formed at intervals, and wherein if a thickness of the counter substrate is assumed to be t and a height of the second projecting portions is assumed to be h 2 , h 2 /t is determined such that 0.001≤h 2 /t≤0.1.
12. The organic EL display device of claim 7 , wherein the resin substrate is a polyimide substrate.
13. The organic EL display device of claim 7 , wherein the organic EL display device is bent, and wherein a density of the first recessed portions, the first projection portions, the second recessed portions, or the second projecting portions at the center of the bending is larger than in other regions.