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KR-20260064967-A - DISPLAY PANEL, DISPLAY DEVICE, AND ELECTRONIC DEVICE

KR20260064967AKR 20260064967 AKR20260064967 AKR 20260064967AKR-20260064967-A

Abstract

A display panel may include a substrate comprising a plurality of display areas and a non-display area outside the plurality of display areas, a first mesh line disposed in a first display area among the display areas and electrically connected to pixels disposed in the first display area, a second mesh line disposed in a second display area among the display areas and electrically connected to pixels disposed in the second display area, a first high power transmission line disposed in the non-display area and electrically connected to the first mesh line and transmitting a first high power voltage to the first mesh line, and a second high power transmission line disposed in the non-display area and electrically connected to the second mesh line and transmitting a second high power voltage to the second mesh line.

Inventors

  • 정준기
  • 김현준
  • 서영완
  • 안종엽

Assignees

  • 삼성디스플레이 주식회사

Dates

Publication Date
20260508
Application Date
20241030

Claims (20)

  1. A substrate comprising a plurality of display areas and a non-display area outside the plurality of display areas; A first mesh line disposed in a first display area among the above display areas and electrically connected to pixels disposed in the first display area; A second mesh line disposed in a second display area among the above display areas and electrically connected to pixels disposed in the second display area; A first high power supply transmission line disposed in the above-mentioned non-display area, electrically connected to the first mesh line, and transmitting a first high power supply voltage to the first mesh line; and A display panel comprising a second high power transmission line disposed in the above-mentioned non-display area, electrically connected to the second mesh line, and transmitting a second high power voltage to the second mesh line.
  2. A display panel according to claim 1, wherein the first mesh line and the second mesh line are electrically insulated from each other.
  3. A display panel according to claim 1, wherein the first high power transmission line and the second high power transmission line are electrically insulated from each other.
  4. In claim 1, the first high-voltage transmission line extends in a first direction, and A display panel, wherein the second high power transmission line extends in the first direction and is spaced apart from the first high power transmission line in a second direction that intersects the first direction.
  5. In Paragraph 4, First connecting lines extending in the second direction and connecting the first high power transmission line and the first mesh line; and A display panel further comprising second connecting lines extending in the second direction and connecting the second high power transmission line and the second mesh line.
  6. In claim 5, the first display area is located in the second direction from the second high power transmission line, and The second display area is located in the second direction from the first display area, and A display panel in which the length of each of the second connecting lines in the second direction is longer than the length of each of the first connecting lines in the second direction.
  7. In claim 6, each of the first connection lines extends from the first high power transmission line in the second direction, overlaps with the first display area in a plane, and is spaced apart from the second display area, Each of the above second connection lines extends in the second direction from the above second high power transmission line and overlaps with the above first display area and the above second display area on a plane, a display panel.
  8. In claim 5, the second mesh line is Horizontal lines each extending in the first direction and spaced apart from each other in the second direction; and Each includes vertical lines that extend in the second direction and are spaced apart from each other in the first direction, and are arranged on a different layer from the horizontal lines, A display panel in which the above vertical lines are electrically connected to the above horizontal lines through contact holes.
  9. A display panel according to claim 8, wherein each of the second connection lines is electrically connected through a contact hole to at least one of the horizontal lines disposed in the second display area.
  10. A display panel according to claim 9, wherein each of the second connection lines is electrically connected through a contact hole to a portion of the horizontal lines disposed in the second display area that is disposed in the central part of the second direction of the second display area.
  11. In claim 8, the vertical lines are arranged on the same layer as the first connecting lines and the second connecting lines, forming a display panel.
  12. A display panel according to claim 11, wherein any one of the vertical lines disposed in the second display area overlaps with any one of the first connecting lines disposed in the first display area in the second direction.
  13. In claim 5, the second display area is located in the second direction from the first display area, and A virtual reference line is defined that extends in the second direction and passes through the center of the first display area and the center of the second display area, and The above first connection lines are 1-1 connection lines; and A display panel comprising the first-1 connecting lines and the first-2 connecting lines arranged symmetrically in the first direction with respect to the reference line.
  14. In claim 13, the second connecting lines are 2-1 connection lines adjacent to the above 1-1 connection lines; and A display panel comprising the 2-1 connection lines and the 2-2 connection lines adjacent to the 1-2 connection lines, arranged symmetrically in the 1-1 direction with respect to the reference line.
  15. In claim 5, the second display area is located in the second direction from the first display area, and A virtual first reference line extending in the second direction and passing through the first display area and the second display area, and a second reference line extending in the second direction and passing through the first display area and the second display area and spaced apart from the first reference line in the first direction are defined, and The above first connection lines are 1-1 connection line; A first-2 connecting line arranged symmetrically with respect to the first reference line and the first-1 connecting line in the first direction; A 1st-3rd connection line adjacent to the above 1st-2nd connection line; and A display panel comprising the first-third connecting lines and the first-four connecting lines arranged symmetrically in the first direction with respect to the second reference line.
  16. In claim 15, the second connecting lines are A 2-1 connection line adjacent to the above 1-1 connection line; A 2-2 connecting line that is symmetrically arranged with respect to the 2-1 connecting line and the 1st direction with respect to the 1st reference line, and adjacent to the 1-2 connecting line; A second-third connection line adjacent to the first-third connection line above; and A display panel comprising a second-third connecting line and a second-fourth connecting line adjacent to the first-fourth connecting line, arranged symmetrically in the first direction with respect to the second reference line.
  17. A display panel comprising a plurality of display areas and a non-display area outside the plurality of display areas; and It includes a panel driving unit that drives the display panel based on input image data and provides a plurality of high power supply voltages to each of the plurality of display areas, The above display panel is A first mesh line disposed in a first display area among the above display areas and electrically connected to pixels disposed in the first display area; A second mesh line disposed in a second display area among the above display areas and electrically connected to pixels disposed in the second display area; A first high power supply transmission line disposed in the above-mentioned non-display area, electrically connected to the first mesh line, and transmitting a first high power supply voltage to the first mesh line; and A display device comprising a second high power transmission line disposed in the above-mentioned non-display area, electrically connected to the second mesh line, and transmitting a second high power voltage to the second mesh line.
  18. In claim 17, the panel driving unit The above input image data is divided into multiple area image data for the plurality of display areas, and A display device that analyzes area image data for each of the plurality of display areas to determine a target voltage level of a high power supply voltage corresponding to each of the plurality of display areas among the plurality of high power supply voltages.
  19. In claim 18, the panel driving unit Calculate the average grayscale value of the plurality of grayscale values represented by the plurality of pixel data included in the area image data for each of the plurality of display areas, and A display device that determines the target voltage level of the corresponding high power supply voltage based on the above average grayscale value.
  20. Windows; A housing that is combined with the above-mentioned window and provides a predetermined internal space; A display panel accommodated in the internal space provided between the housing and the window, and comprising a plurality of display areas and a non-display area outside the plurality of display areas; and It includes a panel driving unit that drives the display panel based on input image data and provides a plurality of high power supply voltages to each of the plurality of display areas, The above display panel is A first mesh line disposed in a first display area among the above display areas and electrically connected to pixels disposed in the first display area; A second mesh line disposed in a second display area among the above display areas and electrically connected to pixels disposed in the second display area; A first high power supply transmission line disposed in the above-mentioned non-display area, electrically connected to the first mesh line, and transmitting a first high power supply voltage to the first mesh line; and An electronic device comprising a second high power transmission line disposed in the above-mentioned non-display area, electrically connected to the second mesh line, and transmitting a second high power voltage to the second mesh line.

Description

Display panel, display device, and electronic device The present invention relates to a display panel, a display device, and an electronic device. More specifically, the present invention relates to a display panel, a display device, and an electronic device capable of reducing power consumption. In a display device such as an organic light-emitting display device, the power supply voltage (e.g., high power supply voltage) provided to the display panel must be set sufficiently high, taking into account the voltage drop margin of the power supply voltage (e.g., IR drop), along with the drain-source voltage of the driving transistor of each pixel and the voltage applied to the organic light-emitting diode. However, when the display panel displays a low-brightness image (or low-gradation image), the power supply voltage may be set lower than when the display panel displays a high-brightness image (or high-gradation image), and thus the power consumption of the display device may be reduced when the display panel displays a low-brightness image (or low-gradation image). Meanwhile, in conventional display devices, the same power supply voltage is applied to all pixels of the display panel. Consequently, even if a low-brightness image is displayed in some areas of the display panel, the power supply voltage is not reduced, and the power consumption of the display device is not reduced. FIG. 1 is a perspective view showing an electronic device according to one embodiment. FIG. 2 is a block diagram showing a display device according to one embodiment. FIG. 3 is a drawing showing an example of a display area of a display panel according to one embodiment. FIG. 4 is a circuit diagram showing an example of a pixel included in a display panel according to one embodiment. FIG. 5 is a plan view showing an example of a display panel according to one embodiment. FIG. 6 is a cross-sectional view showing an example of a display panel according to one embodiment. FIG. 7 is a plan view showing an example of horizontal transmission lines and vertical transmission lines included in a display panel according to one embodiment. FIG. 8 is a plan view schematically showing an example of a part of a display panel according to one embodiment. Figure 9 is a plan view showing an enlarged view of area A of Figure 8. Figure 10 is a cross-sectional view taken along line II' of Figure 8. Figure 11 is a cross-sectional view taken along the line II-II' of Figure 8. FIG. 12 is a plan view schematically showing another example of a part of a display panel according to one embodiment. FIG. 13 is a plan view showing an enlarged view of area B of FIG. 12. Figure 14 is a cross-sectional view taken along the line III-III' of Figure 13. Fig. 15 is a cross-sectional view taken along the line IV-IV' of Fig. 13. FIG. 16 is a plan view schematically showing another example of a part of a display panel according to one embodiment. FIG. 17 is a plan view schematically showing another example of a part of a display panel according to one embodiment. FIG. 18 is a block diagram showing an electronic device according to one embodiment. With respect to the embodiments of the present invention disclosed in the text, specific structural or functional descriptions are provided merely for the purpose of explaining the embodiments of the present invention, and the embodiments of the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described in the text. The present invention is capable of various modifications and may take various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms may be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that one component is "connected" to another component, it should be understood that while it may be directly connected or joined to that other component, there may also be other components present in between. Other expressions describing the relationship between components, such as "between" or "neighboring," should be interpreted in the same way. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application