Display device
AssigneeSamsung Display Co., Ltd.
InventorsHee Kyun Shin, Yong Hoon Yang, Myoung Geun Cha, Ki Seok Choi
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Abstract
A display device including a first substrate and a second substrate. A first barrier layer is on the first substrate and the second substrate is on the first barrier layer. A second barrier layer is on the second substrate and a buffer layer is on the second barrier layer. At least one transistor is on the buffer layer and an organic light-emitting diode is on the at least one transistor. The second substrate comprises a polyimide resin and a dielectric constant of the second substrate is smaller than a dielectric constant of the first substrate.
Claims25
A display device comprising:
- a first substrate;
- a first barrier layer on the first substrate;
- a second substrate on the first barrier layer;
- a second barrier layer on the second substrate;
- a buffer layer on the second barrier layer;
- at least one transistor on the buffer layer;
- and
- an organic light-emitting diode on the at least one transistor,
- wherein the second substrate comprises a polyimide resin, and a dielectric constant of the second substrate is less than a dielectric constant of the first substrate, and
- wherein the second substrate comprises a polyimide resin and has one or more selected from the group consisting of (i) a glass transition temperature≥350° C.;
- (ii) a thermal decomposition temperature≥450° C. at 1% weight loss;
- (iii) a thermal expansion coefficient≤20 ppm/° C.;
- (iv) a transmittance≥85% at 450 nm;
- (v) a Young's modulus≥5 GPa;
- (vi) an elongation≥15%;
- and (vii) a polyimide resin comprising fluorine atoms, a bent molecular structure, and/or at least one aliphatic ring.
A display device comprising:
- a first substrate;
- a first barrier layer on the first substrate;
- a second substrate on the first barrier layer;
- a second barrier layer on the second substrate;
- a buffer layer on the second barrier layer;
- at least one transistor on the buffer layer;
- and
- an organic light-emitting diode on the at least one transistor,
- wherein at least one of the first substrate or the second substrate comprises a polyimide resin, and has a transmittance of 85% or greater for a light having a wavelength of 450 nm.
A display device comprising:
- a first substrate;
- a first barrier layer on the first substrate;
- a second substrate on the first barrier layer;
- a first transistor and a second transistor on the second substrate, the first transistor comprising a polysilicon semiconductor layer and the second transistor comprising an oxide semiconductor layer;
- and
- an organic light-emitting diode on the first transistor,
- wherein no conductive member is between the polysilicon semiconductor layer and the second substrate, and
- wherein the second substrate comprises a polyimide resin and has one or more of selected from the group consisting of:
- (i) a transmittance of 85% or greater for a light having a wavelength of 450 nm;
- (ii) the polyimide resin comprising fluorine atoms;
- (iii) the polyimide resin having a bent molecular structure;
- and (iv) the polyimide resin comprising at least one aliphatic ring.
Dependencies are inferred from the claim text.