KR-102962559-B1 - DISPLAY DEVICE

Abstract

The present disclosure relates to a display device, wherein a display device according to one embodiment comprises a substrate, a transistor located on the substrate, a pixel electrode connected to the transistor, a light-emitting layer located on the pixel electrode, a common electrode located on the light-emitting layer, and a light-shielding member located on the common electrode, wherein the light-shielding member overlaps with the entire area of the light-emitting layer.

Inventors

• 전용찬
• 황현빈
• 구다솜
• 정철호

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260508

Application Date

20201105

Claims (20)

1. substrate, A transistor located on the above substrate, A pixel electrode connected to the above transistor, A light-emitting layer located on the pixel electrode above, A common electrode located on the light-emitting layer, and It includes a light-blocking member located on the above common electrode, and The above light-blocking member A first light-blocking portion having a first thickness and not overlapping with the light-emitting layer, and It includes a second light-blocking portion having a second thickness and overlapping with the entire area of the light-emitting layer, The above first thickness is a display device thicker than the second thickness.
2. In paragraph 1, The light-blocking member is a display device positioned entirely on the substrate.
3. In paragraph 2, The above light-blocking member is a display device that overlaps with the pixel electrode.
4. In paragraph 1, A sealing layer located on the above common electrode, and A display device further comprising a sensing electrode located on the above-mentioned encapsulation layer.
5. In Paragraph 4, The light-blocking member is positioned on the sensing electrode, and The above light-blocking member is a display device that further overlaps with the above-described sensing electrode.
6. In Paragraph 4, The light-blocking member is located between the common electrode and the encapsulation layer, and The above light-blocking member is a display device that further overlaps with the above-described sensing electrode.
7. In Paragraph 4, The light-blocking member is a display device located within the sealing layer.
8. In Paragraph 7, The above-mentioned packaging layer comprises a plurality of layers, and The light-blocking member is a display device located between a plurality of layers of the sealing layer.
9. In Paragraph 4, The light-blocking member is a display device located between the sealing layer and the sensing electrode.
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11. In Paragraph 1, The above display device includes a plurality of pixels, and The first light-blocking part overlaps with the boundary part of the plurality of pixels, and The above second light-blocking part is a display device that overlaps with the plurality of pixels.
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14. In Paragraph 4, The light-blocking member is positioned on the sensing electrode, and The first light-blocking part overlaps with the sensing electrode, and The above second light-blocking part is a display device that overlaps with the pixel electrode.
15. In Paragraph 14, A display device formed using a halftone mask, wherein the first and second light-blocking parts of the light-blocking member are composed of a single layer.
16. In Paragraph 14, The first light-blocking portion of the above light-blocking member is composed of multiple layers, and A display device comprising a single layer of the second light-blocking portion of the light-blocking member.
17. In Paragraph 4, The light-blocking member is located between the common electrode and the encapsulation layer, and The first light-blocking part overlaps with the sensing electrode, and The above second light-blocking part is a display device that overlaps with the pixel electrode.
18. In paragraph 1, The above light-blocking member First shading layer, and A display device comprising a second light-blocking layer located above the first light-blocking layer.
19. In Paragraph 18, A display device in which the concentration of the second light-blocking layer is higher than the concentration of the first light-blocking layer.
20. In Paragraph 19, The first light-blocking layer is located entirely on the substrate, and The above second light-blocking layer is a display device that does not overlap with the above light-emitting layer.

Description

Display Device The present disclosure relates to a display device. A display device is a device that displays an image, and includes Liquid Crystal Displays (LCDs) and Organic Light Emitting Diodes (OLEDs). These display devices are used in a wide variety of electronic devices, such as mobile phones, navigation systems, digital cameras, e-books, portable game consoles, and various terminals. Organic light-emitting displays (OLEDs) possess self-luminous characteristics and, unlike liquid crystal displays (LCDs), do not require a separate light source, allowing for reduced thickness and weight. Furthermore, OLEDs offer high-quality characteristics such as low power consumption, high brightness, and fast response speeds. Meanwhile, external light incident on an organic light-emitting display may be reflected off some layers of the organic light-emitting display and become visible, which may lead to a decrease in contrast ratio. One approach to improving visibility can be considered by equipping the organic light-emitting display with an anti-reflection layer to prevent a decrease in contrast ratio caused by external light. For example, a circularly polarized film can be attached to the organic light-emitting display to prevent the reflection of external light. However, using such a polarizing film results in a decrease in transmittance and an increase in power consumption to improve brightness. Additionally, since the film is attached in this manner, there is a problem that it may detach due to reduced adhesive strength. FIG. 1 is a schematic plan view of a display device according to one embodiment. FIG. 2 is a plan view of a portion including a sensing unit in a display device according to one embodiment. FIG. 3 is a cross-sectional view showing a portion of the display area in a display device according to one embodiment. Figure 4 is a graph showing the transmittance of a display device according to the optical density of a light-blocking member. FIG. 5 is a cross-sectional view of a display device according to one embodiment. FIG. 6 is a cross-sectional view of a display device according to one embodiment. FIG. 7 is a cross-sectional view of a display device according to one embodiment. FIG. 8 is a cross-sectional view of a display device according to one embodiment. FIG. 9 is a cross-sectional view of a display device according to one embodiment. FIGS. 10 and FIGS. 11 are process cross-sectional views illustrating a method for forming a light-shielding member of a display device according to one embodiment. FIGS. 12 and 13 are process cross-sectional views illustrating a method for forming a light-shielding member of a display device according to one embodiment. FIG. 14 is a cross-sectional view of a display device according to one embodiment. FIG. 15 is a cross-sectional view of a display device according to one embodiment. Hereinafter, various embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are used for identical or similar components throughout the specification. Furthermore, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, and thus the present invention is not necessarily limited to what is illustrated. Thicknesses have been enlarged in the drawings to clearly represent various layers and regions. Additionally, for convenience of explanation, the thickness of some layers and regions has been exaggerated in the drawings. Furthermore, when it is said that a part, such as a layer, membrane, region, or plate, is "on" or "on" another part, this includes not only the case where it is "directly above" the other part, but also the case where there is another part in between. Conversely, when it is said that a part is "directly above" another part, it means that there is no other part in between. Also, saying that a part is "on" or "on" a reference part means that it is located above or below the reference part, and does not necessarily mean that it is located "on" or "on" in the direction opposite to gravity. Furthermore, throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Additionally, throughout the specification, "planar" means when the subject part is viewed from above, and "cross-sectional" means when the cross-section obtained by vertically cutting the subject part is viewed from the side. A display device according to one embodiment is described below with reference to FIGS. 1 and FIG. 2. F