DISPLAY PANEL AND DISPLAY DEVICE

• Main Author: FUKUDA TOSHIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 18.02.2022
• Subjects: ADVERTISING; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LABELS OR NAME-PLATES; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS

To provide a display panel in which color purity is improved using a combination of optical resonator structure and a color filter.SOLUTION: A display panel is provided, comprising a plurality of pixels which include self-luminous elements and color filters facing the self-luminous elements, at least one of the plurality of self-luminous elements is a green light emitting element, the green light emitting element has a light transmissive metal film electrode, a green light emitting layer and a light reflective electrode laminated in an order close to the color filter to constitute optical resonator structure enhancing light intensity of a first wavelength, and a color filter facing the green light emitting element has light transmittance less than or equal to 50% for the light which has longer wavelength than the first wavelength and which has the second wavelength having a higher visibility characteristic as a green color than the first wavelength.SELECTED DRAWING: Figure 5 【課題】光共振器構造とカラーフィルタとの組み合わせを用いて、色純度を向上させる表示パネルを提供する。【解決手段】自発光素子と、前記自発光素子に対向するカラーフィルタとを含む画素を複数備える表示パネルであって、前記複数の自発光素子の少なくとも１つは緑色発光素子であり、前記緑色発光素子は、前記カラーフィルタに近い順に、光透過性の金属薄膜電極と、緑色発光層と、光反射性電極とが積層されて、第１の波長の光強度を強める光共振器構造をなしており、前記緑色発光素子に対向するカラーフィルタは、前記第１の波長より長波長であって、前記第１の波長より緑色として視感度特性の高い前記第２の波長の光に対し、光の透過率が５０％以下である。【選択図】図５