Touch screen display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10296114-B2
Application number	US-78866910-A
Country	US
Kind code	B2
Filing date	May 27, 2010
Priority date	Aug 18, 2009
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

A touch screen display apparatus including a sensor unit to sense and to process light signals and a pixel unit to drive pixels according to the light signal processing performed by the sensor unit. The touch screen display apparatus includes a substrate; a plurality of pixel units disposed on the substrate, wherein each of the pixel units includes a first electrode, a second electrode, and an emission layer interposed between the first electrode and the second electrode; and a plurality of sensor units disposed on the substrate, wherein each of the sensor units includes a sensor first electrode, a sensor second electrode, and an organic light receiving layer interposed between the sensor first electrode and the sensor second electrode.

First claim

What is claimed is:

1. A touch screen display apparatus comprising:
a substrate;
a plurality of sensor units on the substrate and configured to sense and to process light signals, wherein each of the sensor units comprises a sensor first electrode, a sensor second electrode, and an organic light receiving layer interposed between the sensor first electrode and the sensor second electrode;
a plurality of pixel units on the substrate and configured to drive pixels according to the light signal processing performed by the sensor units, wherein each of the pixel units comprises a first electrode, a second electrode, and an emission layer interposed between the first electrode and the second electrode, wherein each of the first electrodes and the sensor first electrodes are disposed directly on a same first layer, and wherein the second electrode is disposed to be connected to each of the pixel units in common;
a blocking wall between the sensor units and the pixel units and configured to block light emitted by the emission layer; and
a plurality of transistors interposed between the substrate and the first layer,
wherein each of the plurality of pixel units is arranged in a first direction, and comprises a first sub-pixel emitting a first color, a second sub-pixel emitting a second color different from the first color, and a third sub-pixel emitting a third color different from the first and second colors,
wherein each of the plurality of sensor units is arranged between a pair of sub-pixels along a second direction perpendicular to the first direction, and arranged across the first to third sub-pixels along the first direction, the pair of sub-pixels being adjacent to each other and emitting the same color,
wherein the sensor first electrode of the sensor unit is disposed directly on the same first layer from a first side of the sensor first electrode to a second side of the sensor first electrode,
wherein the organic light receiving layer comprises a different material from the emission layer, and the organic light receiving layer comprises C 60 and a phthalocyanine compound containing one or more metals selected from the group consisting of Cu, Fe, Ni, Co, Mn, Al, Pd, Sn, In, Pb, Ti, Rb, V, Ga, Tb, Ce, La, and Zn, and
wherein the organic light receiving layer and the emission layer are disposed directly on a same second layer, the same second layer entirely separating the sensor first electrode and the organic light receiving layer and extending continuously between the organic light receiving layer and the emission layer in the second direction.

2. The touch screen display apparatus of claim 1 , wherein the sensor first electrode is of a same material as the first electrode of each of the pixel units.

3. The touch screen display apparatus of claim 1 , wherein the sensor second electrode is of a same material as the second electrode of each of the pixel units, and the sensor second electrode is disposed on a same third layer as the second electrode of each of the pixel units.

4. The touch screen display apparatus of claim 1 , wherein the plurality of sensor units are disposed between the plurality of pixel units.

5. The touch screen display apparatus of claim 1 , wherein the organic light receiving layer is a bi-layer consisting of a layer including the phthalocyanine compound containing one or more metals selected from the group consisting of Cu, Fe, Ni, Co, Mn, Al, Pd, Sn, In, Pb, Ti, Rb, V, Ga, Tb, Ce, La, and Zn, and a layer including C 60 .

6. The touch screen display apparatus of claim 1 , wherein the organic light receiving layer is a mixed layer, in which the phthalocyanine compound containing one or more metals selected from the group consisting of Cu, Fe, Ni, Co, Mn, Al, Pd, Sn, In, Pb, Ti, Rb, V, Ga, Tb, Ce, La, and Zn, and C 60 are mixed.

7. The touch screen display apparatus of claim 1 , wherein at least one of the first electrode and the second electrode of each of the pixel units is a transparent electrode.

8. The touch screen display apparatus of claim 1 , wherein a pixel defining layer is formed around the first electrode of each of the pixel units, and the pixel defining layer is also disposed between the sensor units and each of the pixel units.

9. A touch screen display apparatus comprising:
a substrate;
a plurality of sensor units on the substrate and configured to sense and to process light signals, wherein each of the sensor units comprises a sensor first electrode, a sensor second electrode, and an organic light receiving layer interposed between the sensor first electrode and the sensor second electrode;
a plurality of pixel units on the substrate and configured to drive pixels according to the light signal processing performed by the sensor units, wherein each of the pixel units comprises a first electrode, a second electrode, and an emission layer interposed between the first electrode and the second electrode, wherein each of the first electrodes and the sensor first electrodes are disposed directly on a same first layer, and wherein the second electrode is disposed to be connected to each of the pixel units in common;
a blocking wall between the sensor units and the pixel units and configured to block light emitted by the emission layer; and
a plurality of transistors interposed between the substrate and the first layer,
wherein each of the plurality of pixel units is arranged in a first direction, and comprises a first sub-pixel emitting a first color, a second sub-pixel emitting a second color different from the first color, and a third sub-pixel emitting a third color different from the first and second colors,
wherein each of the plurality of sensor units is arranged between a pair of sub-pixels along a second direction perpendicular to the first direction, and arranged across the first to third sub-pixels along the first direction, the pair of sub-pixels being adjacent to each other and emitting the same color,
wherein the sensor first electrode of the sensor unit is disposed directly on the same first layer from a first side of the sensor first electrode to a second side of the sensor first electrode,
wherein each of the pixel units further comprises an intermediate layer including at least one among a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL), and disposed between the first electrode and the second electrode,
wherein the sensor first electrode is of a same material as the first electrode of each of the pixel units,
wherein the sensor second electrode is of a same material as the second electrode of each of the pixel units, and the sensor second electrode is disposed on a same layer as the second electrode of each of the pixel units,
wherein each of the sensor units further comprises a sensor intermediate layer of a same material as the intermediate layer of each of the pixel units and disposed between the sensor first electrode and the sensor second electrode, and
wherein the organic light receiving layer comprises a different material from the emission layer, and the organic light receiving layer comprises C 60 and a phthalocyanine compound containing one or more metals selected from the group consisting of Cu, Fe, Ni, Co, Mn, Al, Pd, Sn, In, Pb, Ti, Rb, V, Ga, Tb, Ce, La, and Zn, and
wherein the organic light receiving layer and the emission layer are disposed directly on a same second layer, the same second layer entirely separating the sensor first electrode and the organic light receiving layer and extending continuously between the organic light receiving layer and the emission layer in the second direction.

10. A method of manufacturing a touch screen display apparatus c

Assignees

• Lee Moon Jae
• Song Won Jun
• Lee Sun Hee
• Lee Young Hee
• Kim Mu Hyun
• Kim Hye Dong
• Kim Ji Young
• Samsung Display Co Ltd

Inventors

• Lee Moon-Jae
• Song Won-Jun
• Lee Sun-Hee
• Lee Young-Hee
• Kim Mu-Hyun
• Kim Hye-Dong
• Kim Ji-Young

Classifications

• H01L27/12

  Electricity · mapped topic

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/042 Primary

  by opto-electronic means · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H10D86/00

  Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates · CPC title