KR-102961952-B1 - DISPLAY PANEL AND DISPLAY DEVICE INCLUDING THE SAME

Abstract

The display panel includes a first organic film layer, a first barrier layer disposed on the first organic film layer, a shielding pattern disposed on the first barrier layer and having a mesh shape, a second barrier layer disposed on the first barrier layer and covering the shielding pattern, a first active pattern disposed on the second barrier layer and overlapping with the shielding pattern, a gate electrode disposed on the first active pattern, a light emission control wiring disposed on the first active pattern and adjacent to one side of the gate electrode on a flat plane, a second active pattern disposed on the light emission control wiring, and an upper compensation control wiring disposed on the second active pattern and adjacent to the other side of the gate electrode on a flat plane.

Inventors

• 박형준
• 곽원규
• 조윤종
• 이지은
• 전진
• 김성호

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260508

Application Date

20201202

Claims (20)

1. Upper organic film layer; A first upper barrier layer disposed on the upper organic film layer; A shielding pattern disposed on the first upper barrier layer and having a mesh shape; A second upper barrier layer that covers the shielding pattern and is disposed on the first upper barrier layer; A first active pattern disposed on the second upper barrier layer and overlapping with the shielding pattern; A gate electrode disposed on the first active pattern above; Light emission control wiring disposed on the first active pattern and adjacent to one side of the gate electrode on a plane; A second active pattern disposed on an upper layer above the light-emitting control wiring; and A display panel comprising upper compensation control wiring disposed on the second active pattern and adjacent to the other side of the gate electrode on a plane.
2. In claim 1, the shielding pattern First pattern; and A display panel characterized by including a second pattern connected to the first pattern and having a second shape symmetrical to the first shape of the first pattern.
3. A display panel according to claim 2, wherein the first pattern includes a first portion that overlaps with the gate electrode.
4. A display panel according to claim 3, characterized in that, when viewed in a planar view, the shape of the first part is identical to the shape of the gate electrode.
5. In Paragraph 3, It further includes a high power voltage wiring disposed on the upper compensation control wiring and provided with a high power voltage, and A display panel characterized in that the first pattern further includes a second portion that overlaps with the high power supply voltage wiring.
6. A display panel according to claim 1, characterized in that the thickness of the shielding pattern is the same as the thickness of the first upper barrier layer.
7. A display panel according to claim 1, wherein the shielding pattern comprises amorphous silicon.
8. A display panel according to claim 7, wherein the first active pattern comprises polycrystalline silicon and the second active pattern comprises an oxide semiconductor.
9. In claim 8, the first active pattern is doped with a cation, and A display panel characterized by the shielding pattern being doped with the cation.
10. In claim 8, the first active pattern is doped with a cation, and A display panel characterized by the shielding pattern being doped with anions.
11. A display panel according to claim 1, characterized in that a static voltage is provided to the shielding pattern.
12. A display panel according to claim 1, wherein the shielding pattern is electrically floating.
13. In Article 1, A lower barrier layer disposed below the upper organic film layer; and A display panel characterized by further including a lower organic film layer disposed below the lower barrier layer.
14. A display panel according to claim 13, characterized in that the thickness of the first upper barrier layer is smaller than the thickness of the second upper barrier layer.
15. A display panel according to claim 13, characterized in that the thickness of the lower barrier layer is equal to the sum of the thickness of the first upper barrier layer and the thickness of the second upper barrier layer.
16. In Article 1, It further includes a lower compensation control wiring disposed between the gate electrode and the second active pattern, and A display panel characterized in that the upper compensation control wiring overlaps with the lower compensation control wiring and is electrically connected to the lower compensation control wiring.
17. Upper organic film layer; A first upper barrier layer disposed on the upper organic film layer; A shielding pattern disposed on the first upper barrier layer and having an island shape; A second upper barrier layer that covers the shielding pattern and is disposed on the first upper barrier layer; A first active pattern disposed on the second upper barrier layer and overlapping with the shielding pattern; A gate electrode disposed on the first active pattern above; Light emission control wiring disposed on the first active pattern and adjacent to one side of the gate electrode on a plane; A second active pattern disposed on an upper layer above the light-emitting control wiring and overlapping with the shielding pattern; and A display panel comprising upper compensation control wiring disposed on the second active pattern and adjacent to the other side of the gate electrode on a plane.
18. In claim 17, the shielding pattern is A first portion overlapping with the gate electrode; and A display panel characterized by including a second part that overlaps with the upper compensation control wiring.
19. Includes a display panel, The above display panel is Upper organic film layer; A first upper barrier layer disposed on the upper organic film layer; A shielding pattern disposed on the first upper barrier layer and having a mesh structure; A second upper barrier layer that covers the shielding pattern and is disposed on the first upper barrier layer; A first active pattern disposed on the second upper barrier layer and overlapping with the shielding pattern; A gate electrode disposed on the first active pattern above; Light emission control wiring disposed on the first active pattern and adjacent to one side of the gate electrode on a plane; A second active pattern disposed on an upper layer above the light-emitting control wiring; and A display device comprising an upper compensation control wiring disposed on the second active pattern and adjacent to the other side of the gate electrode on a plane.
20. In Article 19, A light sensor module positioned at the bottom of the above-mentioned display panel and overlapping with a fingerprint recognition area; and It further includes an air layer disposed between the display panel and the light sensor module and overlapping with the fingerprint recognition area, and A display device characterized in that the above shielding pattern overlaps with the above fingerprint recognition area.

Description

Display panel and display device including the same The present invention relates to a display panel and a display device including the same. More specifically, the present invention relates to a display panel including a shielding pattern and a display device including the same. A conventional display device includes a display panel, and transistors including an active pattern are arranged on the display panel. An electric field may be generated inside the display panel by a signal and voltage provided to the display panel. Organic materials contained in the organic film layer of the display panel may be polarized by the electric field. The polarized organic materials may electrically affect the active pattern of the display panel. Accordingly, the electrical characteristics of the transistors may be altered. Furthermore, the polarization phenomenon may be further accelerated by light incident on the display panel. As a result, there is a problem in that the display quality of the conventional display device is degraded. FIG. 1 is a plan view showing a display device according to embodiments of the present invention. Figure 2 is a block diagram showing the display device of Figure 1. Figure 3 is a circuit diagram showing a pixel circuit and an organic light-emitting diode included in the display device of Figure 2. Figure 4 is a cross-sectional view taken along the line I-I' of Figure 1. FIGS. 5 to 16 are layout drawings for explaining a display device according to an embodiment of the present invention. FIG. 17 is a cross-sectional view showing an example cut along the line II-II' of FIG. 16. FIG. 18 is a cross-sectional view showing another example cut along the line II-II' of FIG. 16. FIGS. 19 to 22 are layout drawings for explaining a display device according to another embodiment of the present invention. FIGS. 23 to 28 are layout drawings for explaining a display device according to another embodiment of the present invention. FIGS. 29 to 35 are layout drawings for explaining a display device according to another embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in more detail with reference to the attached drawings. Identical components in the drawings are given the same reference numerals, and redundant descriptions of identical components are omitted. FIG. 1 is a plan view showing a display device according to embodiments of the present invention, FIG. 2 is a block diagram showing the display device of FIG. 1, FIG. 3 is a circuit diagram showing a pixel circuit and an organic light-emitting diode included in the display device of FIG. 2, and FIG. 4 is a cross-sectional view cut along the line I-I' of FIG. 1. Referring to FIGS. 1 and 2, a display device (10) according to embodiments of the present invention may be divided into a display area (DA), a non-display area (NDA), and a fingerprint recognition area (FA). For example, the display area (DA) may have a rectangular shape having a short side extending in a first direction (D1) and a long side extending in a second direction (D2) that intersects the first direction (D1). The non-display area (NDA) may be positioned surrounding the display area (DA). The display area (DA) may be positioned surrounding the fingerprint recognition area (FA). A display panel (100) may be disposed in the display area (DA) and the fingerprint recognition area (FA). A data driver (200), a gate driver (300), a light-emitting driver (400), and a timing control unit (500) may be disposed in the non-display area (NDA). First and second pixel structures (PX1, PX2) may be disposed on the display panel (100). Each of the first and second pixel structures (PX1, PX2) may be electrically connected to a data line (DL), a gate line (GL), and a light emission control line (EML). The data wiring (DL) is electrically connected to the data driving unit (DDV) and can be extended along the second direction (D2). The data wiring (DL) can transmit a data voltage (e.g., the data voltage (DATA) of FIG. 3). The gate wiring (GL) is connected to the gate driver (300) and can be extended along the first direction (D1). The gate wiring (GL) can transmit a gate signal (e.g., the first to fourth gate signals (GW, GC, GI, GB) of FIG. 3). The light-emitting control wiring (EML) is connected to the light-emitting driving unit (400) and can be extended along the first direction (D1). The light-emitting control wiring (EML) can transmit a light-emitting control signal (e.g., the light-emitting control signal (EM) of FIG. 3). For example, the activation section of the light-emitting control signal (EM) may be the light-emitting section of the display device (10), and the deactivation section of the light-emitting control signal (EM) may be the non-light-emitting section of the display device (10). The gate driving unit (300) can receive a gate control signal (GCTRL) from the timing control unit (500) and can generate the gate signal. For example, th