Display device having touch sensor
AssigneeLG Display Co., Ltd.
InventorsTae-Ryong Kim, Ye-In Hong
Life of this patent
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Abstract
A display device has a touch sensor. The display device includes a first substrate including a plurality of sub-pixels, a thin film transistor in each sub-pixel of the first substrate, an organic light emitting element in each sub-pixel of the first substrate, an insulating layer over the thin film transistor and the organic light emitting layer, a touch sensor over the insulating layer, a passivation layer covering the touch sensor, and a second substrate disposed over the passivation layer, wherein a plurality of concave portions are formed in the insulating layer and the concave portions are filled with the passivation layer to form adhesive reinforcing portion.
Claims20
A display device, comprising:
- a first substrate including a plurality of sub-pixels;
- a thin film transistor in each sub-pixel of the first substrate;
- an organic light emitting element in each sub-pixel of the first substrate;
- an insulating layer over the thin film transistor and the organic light emitting element;
- a first touch electrode and a second touch electrode over the insulating layer and spaced apart from each other;
- a passivation layer covering an upper surface of each of the first touch electrode and the second touch electrode;
- and
- a second substrate disposed over the passivation layer,
- wherein a plurality of first concave portions are formed in the insulating layer, and a concave portion among the plurality of first concave portions is filled with the passivation layer to form an adhesive reinforcing portion.
A display device, comprising:
- a first substrate including a plurality of sub-pixels;
- a thin film transistor in each sub-pixel of the first substrate;
- an organic light emitting element in each sub-pixel of the first substrate;
- an insulating layer over the thin film transistor and the organic light emitting element;
- a touch sensor over the insulating layer;
- a passivation layer covering the touch sensor;
- and
- a second substrate disposed over the passivation layer,
- wherein a plurality of concave portions are formed in the insulating layer, and a concave portion among the plurality of concave portions is filled with the passivation layer to form an adhesive reinforcing portion,
- wherein the insulating layer includes:
- an inorganic encapsulation layer;
- an organic encapsulation layer over the inorganic encapsulation layer;
- a buffer layer over the organic encapsulation layer;
- and
- an interlayer over the buffer layer, and
- wherein the concave portion is formed in the interlayer and the buffer layer to expose a surface of the organic encapsulation layer, and the adhesive reinforcing portion is formed inside of the concave portion so that the adhesive reinforcing portion contacts the exposed surface of the organic encapsulation layer.
A display device, comprising:
- a first substrate including a plurality of sub-pixels;
- a thin film transistor in each sub-pixel of the first substrate;
- an organic light emitting element in each sub-pixel of the first substrate;
- an insulating layer over the thin film transistor and the organic light emitting element;
- a touch sensor over the insulating layer;
- a passivation layer covering the touch sensor;
- and
- a second substrate disposed over the passivation layer,
- wherein a plurality of concave portions are formed in the insulating layer, and a concave portion among the plurality of concave portions is filled with the passivation layer to form an adhesive reinforcing portion, and
- wherein the concave portion is formed of an undercut shape where an area of a lower portion is larger than an area of an entrance.
Dependencies are inferred from the claim text.