Circular polarizing plate with brightening function for OLED display and application of circular polarizing plate

A circular polarizer and display technology, applied in the field of polarizers, can solve the problems of short service life, easy decay of luminescent materials, poor luminous efficiency, etc., and achieve the effects of increasing service life, improving luminous efficiency, and increasing luminous brightness

Inactive Publication Date: 2020-03-27
SHENZHEN E TOUCH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a circular polarizing plate with a brightening function for OLED displays, aiming to solve the technical problems such as the easy attenuation of the luminescent materials of the existing OLED displays, resulting in short service life and poor luminous efficiency.

Method used

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  • Circular polarizing plate with brightening function for OLED display and application of circular polarizing plate
  • Circular polarizing plate with brightening function for OLED display and application of circular polarizing plate
  • Circular polarizing plate with brightening function for OLED display and application of circular polarizing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A circular polarizing plate with a brightness enhancement function, comprising a linear polarizer stacked in sequence, a quarter phase retardation film and a brightness enhancement film;

[0056] Among them, the linear polarizing plate is an iodine-based polarizing plate with the model number UHLC25610SU manufactured by Lite Optoelectronics;

[0057] Wherein, the brightness-enhancing film is a cholesteric liquid crystal film, selected from rod-shaped liquid crystal LC242 or LC1057 produced by BASF Company, mixed with chiral molecule LC756 produced by BASF Company, or rod-shaped liquid crystal RMS-03001 produced by MERCK Company mixed with The chiral molecule LC756 produced by BASF, the reflection center wavelength of the brightness enhancement film is between 370nm and 490nm, and the thickness is 1μm;

[0058] Wherein, the quarter phase retardation film is selected from liquid crystal reverse dispersion compound type quarter phase retardation film;

[0059] In this emb...

Embodiment 2

[0061] A circular polarizing plate with a brightness enhancement function, comprising a linear polarizer stacked in sequence, a quarter phase retardation film and a brightness enhancement film;

[0062] Among them, the linear polarizing plate is an iodine-based polarizing plate with the model number UHLC25610SU manufactured by Lite Optoelectronics;

[0063] Wherein, the brightness-enhancing film is a cholesteric liquid crystal film, selected from rod-shaped liquid crystal LC242 or LC1057 produced by BASF Company, mixed with chiral molecule LC756 produced by BASF Company, or rod-shaped liquid crystal RMS-03001 produced by MERCK Company mixed with The chiral molecule LC756 produced by BASF, the reflection center wavelength of the brightness enhancement film is between 370nm and 490nm, and the thickness is 3μm;

[0064] Wherein, the quarter phase retardation film is selected from liquid crystal reverse dispersion compound type quarter phase retardation film;

[0065] In this emb...

Embodiment 3

[0067] A circular polarizer with a brightness enhancement function, comprising a linear polarizer 30 stacked in sequence, a quarter phase retardation film and a brightness enhancement film;

[0068] Among them, the linear polarizing plate is an iodine-based polarizing plate with the model number UHLC25610SU manufactured by Lite Optoelectronics;

[0069] Wherein, the brightness-enhancing film is a cholesteric liquid crystal film, selected from rod-shaped liquid crystal LC242 or LC1057 produced by BASF Company, mixed with chiral molecule LC756 produced by BASF Company, or rod-shaped liquid crystal RMS-03001 produced by MERCK Company mixed with The chiral molecule LC756 produced by BASF, the reflection center wavelength of the brightness enhancement film is between 370nm and 490nm, and the thickness is 5μm;

[0070] Wherein, the quarter phase retardation film is selected from liquid crystal reverse dispersion compound type quarter phase retardation film;

[0071] In this embodim...

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Abstract

The invention belongs to the technical field of polarizing plates, in particular to a circular polarizing plate with a brightening function for an OLED display. The circular polarizing plate comprisesa linear polarizing plate, a quarter phase delay film and a brightness enhancement film which are sequentially arranged in a laminated mode, the brightness enhancement film is made of at least one ofcholesteric liquid crystals and rod-shaped liquid crystals doped with chiral molecules, and the reflection wavelength of the brightness enhancement film ranges from 370 nm to 700 nm. The circular polarizing plate with the brightening function for the OLED display enables the OLED display to emit light as much as possible, is high in light emitting efficiency and high in utilization rate of lightemitting materials, and effectively avoids the problem that light which cannot penetrate through the polarizing plate is absorbed and dissipated by a linear polarizing plate to cause reduction of light intensity and the like.

Description

technical field [0001] The invention belongs to the technical field of polarizing plates, and in particular relates to a circular polarizing plate with a brightening function for an OLED display and an application thereof. Background technique [0002] In the era of the 21st century, flat-panel displays are the main communication interface between humans and machines. People have higher and higher requirements for displays, such as light and thin, delicate and sensitive, bright colors, and power saving. All in one is organic light-emitting diodes (Organic Light-Emitting Diodes, referred to as OLED display). OLED displays have many advantages that liquid crystal displays (LCD) do not have, such as self-emissive, wide viewing angle, fast response time, no general LCD afterimage phenomenon, high brightness, high lumen efficiency, low operating voltage, low power Consumption, full color, thin panel, large size and flexible panel can be produced, wide temperature range, simple m...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G02B5/30G02F1/1335G02F1/13363H01L51/52
CPCG02B5/3016G02B5/3033G02B5/3083G02F1/133528G02F1/13363G02F1/133543H10K50/868
Inventor邱大任裴晓明冯磊
OwnerSHENZHEN E TOUCH TECH