Quantum rod panel and quantum rod display device

Patent metadata

Field	Value
Publication number	US-2018102493-A1
Application number	US-201715724374-A
Country	US
Kind code	A1
Filing date	Oct 4, 2017
Priority date	Oct 10, 2016
Publication date	Apr 12, 2018
Grant date	—

Abstract

A quantum rod panel includes a first substrate and a second substrate facing each other, a pixel electrode and a common electrode over the first substrate and spaced apart from each other, and a quantum rod layer between the pixel electrode and the common electrode and including quantum rods and metal particles.

First claim

What is claimed is:

1 . A quantum rod panel comprising:
a first substrate and a second substrate facing each other; a pixel electrode and a common electrode over the first substrate and spaced apart from each other; and a quantum rod layer between the pixel electrode and the common electrode and including quantum rods and metal particles.

2 . The quantum rod panel of claim 1 , wherein the metal particles are insulator-coated metal particles, each of the insulator-coated metal particles being surrounded by an insulating material.

3 . The quantum rod panel of claim 2 , wherein the insulating material has a light-transmitting property.

4 . The quantum rod panel of claim 2 , wherein the insulating material includes one of silica, silicon oxide, and silicon nitride.

5 . The quantum rod panel of claim 2 , wherein the insulator-coated metal particles have a content of approximately 1 to 15 wt % with respect to the quantum rods.

6 . The quantum rod panel of claim 1 , wherein the metal particles include one of gold, silver, titanium and aluminum.

7 . The quantum rod panel of claim 1 , wherein each of the pixel electrode and the common electrode includes:
a lower layer of a transparent conductive material, and an upper layer of a reflective conductive material.

8 . The quantum rod panel of claim 7 , wherein the lower layer has a thickness greater than a thickness of the upper layer.

9 . The quantum rod panel of claim 1 , wherein long axes of the quantum rods are perpendicular to an extension direction of the pixel electrode.

10 . The quantum rod panel of claim 1 , further comprising a thin film transistor over the first substrate and connected to the pixel electrode.

11 . A quantum rod display device comprising:
a quantum rod panel including:
a first substrate and a second substrate facing each other,
a pixel electrode and a common electrode over the first substrate and spaced apart from each other, and
a quantum rod layer between the pixel electrode and the common electrode and including quantum rods and metal particles; and
a backlight unit under the quantum rod panel.

12 . The quantum rod display device of claim 11 , wherein the metal particles are insulator-coated metal particles, each of the insulator-coated metal particles being surrounded by an insulating material.

13 . The quantum rod display device of claim 12 , wherein the insulating material has a light-transmitting property.

14 . The quantum rod display device of claim 12 , wherein the insulating material includes one of silica, silicon oxide, and silicon nitride.

15 . The quantum rod display device of claim 12 , wherein the insulator-coated metal particles have a content of approximately 1 to 15 wt % with respect to the quantum rods.

16 . The quantum rod display device of claim 11 , wherein the metal particles include one of gold, silver, titanium and aluminum.

17 . The quantum rod display device of claim 11 , wherein each of the pixel electrode and the common electrode includes:
a lower layer of a transparent conductive material, and an upper layer of a reflective conductive material.

18 . The quantum rod display device of claim 17 , wherein the lower layer has a thickness greater than a thickness of the upper layer.

19 . The quantum rod display device of claim 11 , wherein long axes of the quantum rods are perpendicular to an extension direction of the pixel electrode.

20 . The quantum rod display device of claim 11 , wherein the quantum rod panel further includes a thin film transistor over the first substrate and connected to the pixel electrode.

Assignees

• Lg Display Co Ltd

Inventors

• Woo Sung-Il
• Kim Byung-Geol
• Kim Kyu-Nam
• Jang Kyung-Kook
• Lee Tae-Yang

Classifications

• G02F1/133504

  Diffusing, scattering, diffracting elements (associated to illuminating devices G02F1/133606) · CPC title

• G02F1/133617 Primary

  Illumination with ultraviolet light; Luminescent elements or materials associated to the cell · CPC title

• G02F2202/36

  Micro- or nanomaterials · CPC title

• G02F1/174

  based on absorption band-shift, e.g. Stark - or Franz-Keldysh effect (G02F1/015, G02F1/178 take precedence) · CPC title

• G02F2203/34

  Colour display without the use of colour mosaic filters · CPC title