Organic light emitting display device
First Claim
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1. An organic light emitting display device comprising:
- a display layer comprising;
a substrate,a pixel array layer on the substrate, the pixel array layer including a plurality of pixels, each of the plurality of pixels including a thin film transistor (TFT) and an organic light emitting diode, andan encapsulation layer covering the pixel array layer;
a cover window; and
a touch sensing layer directly disposed on the display layer, the touch sensing layer disposed between the display layer and the cover window, the touch sensing layer comprising;
a first touch electrode layer directly on the display layer,a second touch electrode layer between the first touch electrode layer and the cover window, anda pressure reaction member between the first touch electrode layer and the second touch electrode layer, wherein the electrical characteristic of the pressure reaction member changes according to force applied to the pressure reaction member,wherein the second touch electrode layer further comprises a plurality of third touch electrodes disposed on the pressure reaction member and a plurality of first secondary electrodes and a plurality of second secondary electrodes disposed along the plurality of third touch electrodes, each of the plurality of third touch electrodes disposed between an adjacent one of the first secondary electrodes and an adjacent one of the second secondary electrodes,wherein the plurality of third touch electrodes, the plurality of first secondary electrodes, and the plurality of second secondary electrodes are electrically floated during a touch position sensing period, andwherein each of the plurality of third touch electrodes is electrically connected to the adjacent one of the first secondary electrodes and the adjacent one of the second secondary electrodes during a touch force sensing period.
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Abstract
Disclosed is an organic light emitting display device including an encapsulation layer covering a pixel array layer provided on a substrate and a cover window coupled to a touch sensing layer. The touch sensing layer may include a first touch electrode layer provided on the encapsulation layer, a second touch electrode layer provided on the first touch electrode layer, and a pressure reaction member provided between the first touch electrode layer and the second touch electrode layer. Electrical characteristic of the pressure reaction member may be changed according to force applied to the pressure reaction member.
26 Citations
20 Claims
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1. An organic light emitting display device comprising:
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a display layer comprising; a substrate, a pixel array layer on the substrate, the pixel array layer including a plurality of pixels, each of the plurality of pixels including a thin film transistor (TFT) and an organic light emitting diode, and an encapsulation layer covering the pixel array layer; a cover window; and a touch sensing layer directly disposed on the display layer, the touch sensing layer disposed between the display layer and the cover window, the touch sensing layer comprising; a first touch electrode layer directly on the display layer, a second touch electrode layer between the first touch electrode layer and the cover window, and a pressure reaction member between the first touch electrode layer and the second touch electrode layer, wherein the electrical characteristic of the pressure reaction member changes according to force applied to the pressure reaction member, wherein the second touch electrode layer further comprises a plurality of third touch electrodes disposed on the pressure reaction member and a plurality of first secondary electrodes and a plurality of second secondary electrodes disposed along the plurality of third touch electrodes, each of the plurality of third touch electrodes disposed between an adjacent one of the first secondary electrodes and an adjacent one of the second secondary electrodes, wherein the plurality of third touch electrodes, the plurality of first secondary electrodes, and the plurality of second secondary electrodes are electrically floated during a touch position sensing period, and wherein each of the plurality of third touch electrodes is electrically connected to the adjacent one of the first secondary electrodes and the adjacent one of the second secondary electrodes during a touch force sensing period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14)
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9. An organic light emitting display device comprising:
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a display layer; a cover window; and a touch sensing layer directly disposed on the display layer, the touch sensing layer disposed between the display layer and the cover window, the touch sensing layer comprising; a first touch electrode layer directly on the display layer, a second touch electrode layer between the first touch electrode layer and the cover window, and a pressure reaction member between the first touch electrode layer and the second touch electrode layer, electrical characteristic of the pressure reaction member changed according to force applied to the pressure reaction member, wherein the display layer comprises; a substrate; a pixel array layer on the substrate, the pixel array layer including a plurality of pixels, each of the plurality of pixels including a thin film transistor (TFT) and an organic light emitting diode; an encapsulation layer covering the pixel array layer; a black matrix directly on the encapsulation layer, the black matrix defining an opening area of each of the plurality of pixels; a color filter layer disposed in the opening area of each of the plurality of pixels; and a buffer layer covering the black matrix and the color filter layer, wherein the first touch electrode layer comprises a plurality of first touch electrodes and a plurality of second touch electrodes directly on the buffer layer, and wherein the second touch electrode layer comprises a plurality of third touch electrodes directly on the pressure reaction member. - View Dependent Claims (12, 20)
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15. An organic light emitting display device comprising:
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a display layer comprising; a substrate, a pixel array layer on the substrate, the pixel array layer including a plurality of pixels, each of the plurality of pixels including a thin film transistor (TFT) and an organic light emitting diode, and an encapsulation layer covering the pixel array layer; a cover window; and a touch sensing layer directly disposed on the display layer, the touch sensing layer disposed between the display layer and the cover window, the touch sensing layer comprising; a first touch electrode layer directly on the display layer, a second touch electrode layer between the first touch electrode layer and the cover window, and a pressure reaction member between the first touch electrode layer and the second touch electrode layer, wherein the electrical characteristic of the pressure reaction member changes according to force applied to the pressure reaction member, wherein the first touch electrode layer comprises; a plurality of first touch electrodes directly on the encapsulation layer, an electrode insulation layer disposed on the encapsulation layer, the electrode insulation layer covering the plurality of first touch electrodes, and a plurality of second touch electrodes directly on the electrode insulation layer, the plurality of second touch electrodes intersecting the plurality of first touch electrodes, and wherein the second touch electrode layer comprises a plurality of third touch electrodes directly disposed on the pressure reaction member, wherein the first touch electrode layer further comprises a plurality of first secondary electrodes and a plurality of second secondary electrodes disposed along the plurality of second touch electrodes, each of the plurality of second touch electrodes disposed between an adjacent one of the first secondary electrodes and an adjacent one of the second secondary electrodes, wherein the plurality of third touch electrodes, the plurality of first secondary electrodes, and the plurality of second secondary electrodes are electrically floated during a touch position sensing period, and wherein each of the plurality of second touch electrodes is electrically connected to the adjacent one of the first secondary electrodes and the adjacent one of the second secondary electrodes during a touch force sensing period. - View Dependent Claims (16, 17, 19)
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18. An organic light emitting display device comprising:
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a display layer; a cover window; and a touch sensing layer directly disposed on the display layer, the touch sensing layer disposed between the display layer and the cover window, wherein the display layer comprise; a substrate; a pixel array layer on the substrate, the pixel array layer including a plurality of pixels, each of the plurality of pixels including a thin film transistor (TFT) and an organic light emitting diode; an encapsulation layer covering the pixel array layer; a black matrix directly on the encapsulation layer, the black matrix defining an opening area of each of the plurality of pixels; a color filter layer disposed in the opening area of each of the plurality of pixels; and a buffer layer covering the black matrix and the color filter layer, wherein the touch sensing layer comprise; a first touch electrode layer directly on the buffer layer; a second touch electrode layer between the first touch electrode layer and the cover window; and a pressure reaction member between the first touch electrode layer and the second touch electrode layer, electrical characteristic of the pressure reaction member changed according to force applied to the pressure reaction member, wherein the second touch electrode layer comprises a plurality of first touch electrodes and a plurality of second touch electrodes directly on the pressure reaction member, and wherein the first touch electrode layer comprises a third touch electrode directly on the buffer layer and overlapping with all of the plurality of first and second touch electrodes.
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Specification