Organic light emitting display device
AssigneeLG Display Co., Ltd.
InventorSangKyu Lee
Life of this patent
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Abstract
An organic light emitting display device is provided. The organic light emitting display device includes a first substrate including a black matrix on one surface, an overcoating layer formed of a semi-permeable material and configured to equalize a thickness of an area where the black matrix is present to a thickness of an area where the black matrix is not present, and a touch electrode layer on the overcoating layer; and a second substrate including an organic light emitting element on one surface and bonded to the first substrate to face each other.
Claims10
An organic light emitting display device, comprising:
- a first substrate;
- a black matrix including a first surface on one surface of the first substrate;
- an overcoating layer including a semi-permeable material that reduces a transmissivity of visible light at a certain ratio, the overcoating layer shielding external light in place of a separate polarizer, the overcoating layer being configured to equalize a thickness of an area where the black matrix is present to a thickness of an area where the black matrix is not present, the overcoating layer entirely covering a second surface of the black matrix opposite to the first surface of the black matrix;
- a touch electrode layer on and directly contacting the overcoating layer, and spaced apart from the black matrix;
- a second substrate;
- an organic light emitting element on one surface of the second substrate;
- and
- an adhesive layer between the touch electrode layer and the organic light emitting element layer, the adhesive layer covering and directly contacting all conductive surfaces of the touch electrode layer other than a surface directly contacting the overcoating layer in a cross-sectional view, the adhesive layer being configured to bond the first substrate to the second substrate, such that the first substrate and the second substrate face each other.
A display device, comprising:
- a first plastic substrate including:
- a black matrix (BM);
- a semi-permeable overcoating layer, the semi-permeable overcoating layer entirely covering a first surface of the BM opposite to a second surface of the BM in contact with the first plastic substrate;
- and
- a touch sensor on the semi-permeable overcoating layer, the touch sensor being spaced apart from the BM, the touch sensor directly contacting the semi-permeable overcoating layer;
- and
- a second plastic substrate on which pixels including an organic emission layer are disposed, each pixel including a pixel region;
- an adhesive layer bonding the first plastic substrate to the second plastic substrate, the adhesive layer covering and directly contacting all conductive surfaces of the touch sensor other than a surface directly contacting the overcoating layer in a cross-sectional view;
- and
- a cover plate attached to the first plastic substrate without a polarizer therebetween,
- wherein the BM is positioned corresponding to a boundary of each pixel region,
- wherein a bonding structure of the first plastic substrate and the second plastic substrate permits a foldable configuration, and
- wherein the bonding structure includes the adhesive layer and the cover plate.
Dependencies are inferred from the claim text.