Display device
By using an auxiliary film containing hydrogen in the quantum dot display device, the problem of deterioration of the light emitting element caused by oxygen vacancy is solved, and a higher luminous efficiency is achieved.
CN119183327APending Publication Date: 2024-12-24SAMSUNG DISPLAY CO LTD
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Patent Information
- Application Number
- CN202410439852.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-21
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-24
AI Technical Summary
Technical Problem
The light emitting elements of the conventional quantum dot display device are prone to deterioration due to oxygen vacancy, which affects the luminous efficiency.
Method used
The auxiliary film containing hydrogen is introduced into the display device, and hydrogen is released during heating to reduce oxygen vacancy in the metal oxide layer. The auxiliary film is arranged between the first electrode and the second electrode to shorten the inflow path of hydrogen and ensure smoother hydrogen. The metal oxide layer flows into the metal oxide layer.
Benefits of technology
Effectively reduce or prevent the deterioration of the metal oxide layer and improve the luminous efficiency of the display device.
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Smart Images
Figure CN119183327A_ABST
Abstract
A display device includes: a first electrode; a second electrode disposed on the first electrode and facing the first electrode; a light emitting layer disposed between the first electrode and the second electrode and including quantum dots; a metal oxide layer disposed between the first electrode and the second electrode and including a metal oxide; an auxiliary film disposed at the same level as the first electrode and including an inorganic material; and a pixel defining layer covering at least a portion of the auxiliary film and defining a pixel opening exposing a portion of the first electrode.
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