CN-122029589-A - Lamp panel and display device

Abstract

The application discloses a lamp panel and display equipment, and relates to the technical field of display. The lamp panel comprises a driving substrate, a driving chip and a light-emitting unit. The arrangement direction of the plurality of driving pins of the driving chip is consistent relative to the arrangement direction of the plurality of types of signal lines included in the driving substrate, so that the distances between the signal lines in the driving substrate and the driving pins in the driving chip which are required to be correspondingly connected are relatively close through design. In the case where a plurality of types of signal lines included in the driving substrate are provided in the first conductive layer, a smaller number of connection signal lines need to be provided in the second conductive layer. Therefore, the number of signal wires which are required to be replaced in the first conductive layer and the second conductive layer in a plurality of types of signal wires included in the driving substrate to realize connection can be reduced, and the reliability of the lamp panel are improved.

Inventors

• WANG YANG

Assignees

• 京东方科技集团股份有限公司
• 合肥京东方瑞晟科技有限公司

Dates

Publication Date

20260512

Application Date

20240905

Claims (20)

1. A lamp panel is characterized by comprising a light emitting area and a peripheral area surrounding the light emitting area, wherein the lamp panel comprises: the driving substrate comprises a substrate, a first conductive layer, a first insulating layer, a second conductive layer and a second insulating layer, wherein the first conductive layer, the first insulating layer, the second conductive layer and the second insulating layer are laminated on one side of the substrate; The driving chip is connected with the conductive layer in the driving substrate through the through hole in the second insulating layer, and comprises a plurality of driving pins which are arranged in the first direction and the second direction, wherein the number of the driving pins arranged in the second direction is greater than that of the driving pins arranged in the first direction; And the second conductive layer comprises a first connection signal line and a second connection signal line, the first connection signal line is used for connecting the light-emitting unit and the light-emitting driving signal line, and the second connection signal line is used for connecting the light-emitting unit and the light-emitting control pin.
2. The lamp panel of claim 1, wherein the plurality of types of signal lines further comprise a ground signal line, a clock signal line, a control signal line and a chip driving signal line, wherein the clock signal line comprises a clock input signal line and a clock output signal line, and the control signal line comprises a control input signal line and a control output signal line; The plurality of driving pins further comprise a grounding pin, a clock input pin, a clock output pin, a control input pin, a control output pin and a chip control pin; The ground pin is connected with the ground signal line, the clock input pin is connected with the clock input signal line, the clock output pin is connected with the clock output signal line, the control input pin is connected with the control input signal line, the control output pin is connected with the control output signal line, and the chip control pin is connected with the chip driving signal line.
3. The lamp panel according to claim 1, wherein the light emitting region includes a first column of light emitting regions extending in the first direction, the first column of light emitting regions includes a plurality of first control light emitting regions arranged in the first direction, each of the first control light emitting regions includes a plurality of first sub light emitting regions, the lamp panel includes a plurality of light emitting units located in the plurality of first sub light emitting regions, the second conductive layer includes a plurality of first connection signal lines corresponding to the plurality of first sub light emitting regions and a plurality of second connection signal lines corresponding to the plurality of first sub light emitting regions, the plurality of light emitting units of each of the first sub light emitting regions are connected in series with each other, and a first light emitting unit of the plurality of light emitting units connected in series with each other is connected with the light emitting driving signal line through the corresponding first connection signal line; The lamp panel comprises a plurality of driving chips, the driving chips comprise a plurality of first type driving chips which are arranged along the first direction, the driving chips of the first type are correspondingly arranged with the first control light-emitting areas, each driving chip of the first type comprises a plurality of first type light-emitting control pins which correspond to the first sub-light-emitting areas, and each first type light-emitting control pin is connected with the last light-emitting unit in the light-emitting units which are mutually connected in series through the corresponding second connecting signal line and the corresponding first sub-light-emitting areas; The second conductive layer further comprises a plurality of groups of first-type third connection signal line groups corresponding to the plurality of first sub-light-emitting areas, and each first-type third connection signal line group is used for connecting the plurality of light-emitting units in the corresponding first sub-light-emitting areas.
4. The lamp panel of claim 3, wherein in the first column light emitting region, the first conductive layer comprises a first type light emitting drive signal line, a first type ground signal line, a first type clock signal line, a first type control signal line, a first type chip drive signal line, a second first type ground signal line, and a second first type light emitting drive signal line arranged along the second direction; The first light-emitting unit of at least one first sub-light-emitting region of the plurality of first sub-light-emitting regions is connected with a first type light-emitting driving signal line, and the first light-emitting unit of at least one first sub-light-emitting region of the plurality of first sub-light-emitting regions is connected with a second first type light-emitting driving signal line; The second conductive layer further comprises a first grounding connection part of a first type, the orthographic projection of the first grounding connection part on the substrate crosses the first clock signal wire, the first control signal wire is orthographic projected on the substrate, one end of the first grounding connection part is connected with the first grounding signal wire through a via hole in the first insulating layer, and the other end is connected with the second grounding signal wire through a via hole in the first insulating layer.
5. The lamp panel of claim 4, wherein each first control light emitting area comprises at least four first sub light emitting areas, wherein the first type of driving chip comprises 12 driving pins, and the 12 driving pins are arranged in two rows in the first direction; the first row driving pins of the 12 driving pins in the first type driving chip are respectively a first type luminous control pin, a second first type grounding pin, a third first type luminous control pin, a third first type grounding pin, a first type clock input pin and a first type control input pin; The second row driving pins of the 12 driving pins in the first type driving chip are respectively a second first type luminous control pin, a first type grounding pin, a fourth first type luminous control pin, a first type chip control pin, a first type clock output pin and a first type control output pin; The first type light-emitting control pins correspond to the first sub-light-emitting areas, the third first type light-emitting control pins correspond to the third first sub-light-emitting areas, the second first type light-emitting control pins correspond to the second first sub-light-emitting areas, and the fourth first type light-emitting control pins correspond to the fourth first sub-light-emitting areas.
6. The lamp panel of claim 5, wherein the first type of clock signal lines comprise first type of clock input signal lines and first type of clock output signal lines which are arranged at intervals along the first direction and extend along the first direction, one end of the first type of clock input signal lines, which is close to the first type of clock output signal lines, is directly connected with the first type of clock input pins, and one end of the first type of clock output signal lines, which is close to the first type of clock input signal lines, is directly connected with the first type of clock output pins; The first type control signal lines comprise first type control input signal lines and first type control output signal lines which are distributed at intervals along the first direction and extend along the first direction, one ends of the first type control input signal lines, which are close to the first type control output signal lines, are directly connected with the first type control input pins, and one ends of the first type control output signal lines, which are close to the first type control input signal lines, are directly connected with the first type control output pins.
7. The lamp panel of claim 5, wherein the first type of ground signal line comprises a first type of ground body portion and a first type of second ground connection portion extending along the first direction, the first type of second ground connection portion is connected to the first type of ground body portion at both ends in the first direction, the first type of ground body portion and the first type of second ground connection portion form a first enclosed area, and a distance between the first type of second ground connection portion and the first type of clock signal line in the second direction is greater than a distance between the first type of ground body portion and the first type of clock signal line in the second direction.
8. The lamp panel of claim 7, wherein the orthographic projection of the first type of ground pin on the substrate and the orthographic projection of the second type of ground pin on the substrate overlap the orthographic projection of the first type of second ground connection on the substrate; The first type grounding pin and the second first type grounding pin are directly connected with the first type second grounding connection part.
9. The lamp panel of claim 7, wherein the orthographic projection of the corresponding two first-type lighting control pins on the substrate board of the last lighting unit of each of two first sub-lighting areas of the plurality of first sub-lighting areas is located in the first enclosed area; The last light emitting unit of each of the two first sub-light emitting areas of the plurality of first sub-light emitting areas is connected with a corresponding one of the first type light emitting control pins through a corresponding second connection signal line.
10. The lamp panel of claim 7, wherein the first type of ground signal line further comprises a first type of third ground connection extending along the first direction, one end of the first type of third ground connection being connected to the first type of ground body; The front projection of the first type third grounding connection part on the substrate is not overlapped with the front projection of the first type chip control pin on the substrate, the front projection of the first type third grounding connection part on the substrate is overlapped with the front projection of the third first type grounding pin on the substrate, and the other end of the first type third grounding connection part is directly connected with the third first type grounding pin.
11. The lamp panel of claim 10, wherein a side of the first type second ground connection portion adjacent to the first type clock signal line and the first type ground body form a first receiving area; The orthographic projection of the last light emitting unit of each first sub-light emitting area in the two first sub-light emitting areas is positioned on the front projection of the first type chip driving signal line on the substrate and the orthographic projection of the second first type grounding signal line on the substrate; Orthographic projection of the second connection signal line corresponding to one first sub-light-emitting region of the plurality of first sub-light-emitting regions on the substrate base plate spans the first type chip driving signal line, the first type control signal line, the first type clock signal line and the first type third grounding connection portion are orthographic projected on the substrate base plate; The orthographic projection of the second connection signal line corresponding to one first sub-light-emitting region of the plurality of first sub-light-emitting regions on the substrate base plate spans the first type chip driving signal line, the first type control signal line and the orthographic projection of the first type clock signal line on the substrate base plate.
12. The lamp panel of claim 7, wherein the second conductive layer further comprises a fourth connection signal line of the first type; One end of the first fourth connecting signal wire is connected with the first chip driving signal wire through a via hole in the first insulating layer, and the other end of the first fourth connecting signal wire is connected with the first chip control pin, wherein orthographic projection of the first fourth connecting signal wire on the substrate spans the orthographic projection of the first clock signal wire and the first control signal wire on the substrate.
13. The lamp panel according to any one of claims 3 to 12, wherein the light emitting region further comprises a second column of light emitting regions extending in the first direction, the second column of light emitting regions and the first column of light emitting regions being adjacently arranged in the second direction, the second column of light emitting regions comprising a plurality of second control light emitting regions arranged in the second direction, each of the second control light emitting regions comprising a plurality of second sub-light emitting regions, the lamp panel comprising a plurality of light emitting units located in the plurality of second sub-light emitting regions, the second conductive layer comprising a plurality of first connection signal lines corresponding to the plurality of second sub-light emitting regions and a plurality of second connection signal lines corresponding to the plurality of second sub-light emitting regions, the plurality of light emitting units of each of the second sub-light emitting regions being connected in series with each other, a first light emitting unit of the plurality of light emitting units connected in series with each other being connected by the corresponding first connection signal lines and the light emitting driving signal lines; The driving chips further comprise a plurality of second-type driving chips arranged along the first direction, the second-type driving chips and the second control light-emitting areas are correspondingly arranged, each second-type driving chip comprises a plurality of second-type light-emitting control pins corresponding to the second sub-light-emitting areas, and each second-type light-emitting control pin is connected with a last light-emitting unit in a plurality of light-emitting units which are mutually connected in series through a corresponding second connecting signal line and a corresponding second sub-light-emitting group; The second conductive layer further comprises a plurality of groups of second-class third connection signal line groups corresponding to the plurality of second sub-light-emitting areas, each second-class third connection signal line group is used for connecting the plurality of light-emitting units in the corresponding second sub-light-emitting areas, and the arrangement sequence of the plurality of types of signal lines in the second-column sub-light-emitting areas and the arrangement sequence of the plurality of types of signal lines in the first-column sub-light-emitting areas in the second direction are opposite.
14. The lamp panel as recited in claim 13, wherein, The first conductive layer comprises a first second-type light-emitting driving signal wire, a first second-type grounding signal wire, a second-type chip driving signal wire, a second-type control signal wire, a second-type clock signal wire, a second-type grounding signal wire and a second-type light-emitting driving signal wire which are sequentially arranged along the second direction; The first conductive layer further comprises a third type of grounding signal wire, the third type of grounding signal wire extends along the second direction and is positioned at one end, close to the peripheral area, of the first type of grounding signal wire and the second type of grounding signal wire, and the third type of grounding signal wire is directly connected with the first type of grounding signal wire and the second type of grounding signal wire.
15. The lamp panel of claim 13, wherein the third type of ground signal line and the second first type of ground signal line, the second first type of light-emitting drive signal line, the first second type of light-emitting drive signal line and the first second type of ground signal line have a spacing in the first direction; The first type clock signal line and the second type clock signal line are connected into an integral clock signal line, and at least part of the integral clock signal line is positioned at the interval; The first type control signal line and the second type control signal line are connected into an integral control signal line, and at least part of the integral control signal line is positioned at the interval; Wherein a portion of the integral control signal line at the interval is farther from the third type of ground signal line than a portion of the integral clock signal line at the interval.
16. The lamp panel of claim 15, wherein the second conductive layer further comprises a fourth ground connection of a first type and a fourth ground connection of a second type; the orthographic projection of the first fourth grounding connection part on the substrate base plate spans the integral control signal line and the orthographic projection of the integral clock signal line on the substrate base plate, one end of the first fourth grounding connection part is connected with the second first grounding signal line, and the other end of the first fourth grounding connection part is connected with the third grounding signal line; The orthographic projection of the second type fourth grounding connection part on the substrate base plate spans the integral control signal line and the orthographic projection of the integral clock signal line on the substrate base plate, one end of the first type fourth grounding connection part is connected with the first second type grounding signal line, and the other end is connected with the third type grounding signal line.
17. The lamp panel of claim 15, wherein a first light emitting unit of at least one of the plurality of second sub-light emitting regions is connected to a first second type light emitting drive signal line, and wherein a first light emitting unit of at least one of the plurality of second sub-light emitting regions is connected to a second type light emitting drive signal line; The second type grounding signal wires are directly connected with second type grounding pins of the second type driving chips, the second conductive layer further comprises second type first grounding connection parts, orthographic projections of the second type first grounding connection parts on the substrate base plate cross the second type clock signal wires, second type control signal wires, orthographic projections of the second type chip driving signal wires on the substrate base plate, one ends of the second type first grounding connection parts are connected with the first type second grounding signal wires through holes in the first insulating layer, and the other ends of the second type first grounding connection parts are connected with the second type second grounding signal wires through holes in the first insulating layer.
18. The lamp panel of claim 17, wherein each of the second control light emitting areas comprises at least four of the second sub-light emitting areas, the second type of driver chip comprises 12 of the driver pins, and the 12 of the driver pins are arranged in two rows in the first direction; The first row driving pins of the 12 driving pins in the second type driving chip are respectively a second type control output pin, a second type clock output pin, a second type chip control pin, a first second type luminous control pin, a first second type grounding pin and a third second type luminous control pin; The second row driving pins of the 12 driving pins in the second type driving chip are respectively a second type control input pin, a second type clock input pin, a third second type grounding pin, a second type luminous control pin, a second type grounding pin and a fourth second type luminous control pin; The first second type light-emitting control pins correspond to the first second sub-light-emitting areas, the third second type light-emitting control pins correspond to the third second sub-light-emitting areas, the second type light-emitting control pins correspond to the second sub-light-emitting areas, and the fourth second type light-emitting control pins correspond to the fourth second sub-light-emitting areas.
19. The lamp panel of claim 18, wherein the second type of clock signal line comprises a second type of clock input signal line and a second type of clock output signal line which are arranged at intervals along the first direction and each extend along the first direction, wherein one end of the second type of clock input signal line, which is close to the second type of clock output signal line, is directly connected with the second type of clock input pin, and wherein one end of the second type of clock output signal line, which is close to the second type of clock input signal line, is directly connected with the second type of clock output pin; The second type control signal lines comprise second type control input signal lines and second type control output signal lines which are distributed at intervals along the first direction and extend along the first direction, one end, close to the second type control output signal lines, of the second type control input signal lines is directly connected with the second type control input pins, and one end, close to the second type control input signal lines, of the second type control output signal lines is directly connected with the second type control output pins.
20. The lamp panel of claim 13, wherein the light emitting area comprises a plurality of the first column light emitting areas and a plurality of the second column light emitting areas, and the plurality of the first column light emitting areas and the plurality of the second column light emitting areas are staggered in the second direction.

Description

Lamp panel and display device Technical Field The application relates to the technical field of display, in particular to a lamp panel and display equipment. Background The LED lamp panel manufactured by adopting the light-emitting diode (LED) can realize local dimming, thereby greatly improving the display image quality of the display device. The light emitting diode may be a sub-millimeter light emitting diode (mini LED), or may be a micro light emitting diode (micro LED). Disclosure of Invention The application provides a lamp panel and display equipment, wherein the technical scheme is as follows: In one aspect, a light panel is provided, the light panel having a light emitting region and a peripheral region surrounding the light emitting region, the light panel comprising: the driving substrate comprises a substrate, a first conductive layer, a first insulating layer, a second conductive layer and a second insulating layer, wherein the first conductive layer, the first insulating layer, the second conductive layer and the second insulating layer are laminated on one side of the substrate; The driving chip is connected with the conductive layer in the driving substrate through the through hole in the second insulating layer, and comprises a plurality of driving pins which are arranged in the first direction and the second direction, wherein the number of the driving pins arranged in the second direction is greater than that of the driving pins arranged in the first direction; And the second conductive layer comprises a first connection signal line and a second connection signal line, the first connection signal line is used for connecting the light-emitting unit and the light-emitting driving signal line, and the second connection signal line is used for connecting the light-emitting unit and the light-emitting control pin. Optionally, the signal lines of the multiple types further comprise a grounding signal line, a clock signal line, a control signal line and a chip driving signal line, wherein the clock signal line comprises a clock input signal line and a clock output signal line, and the control signal line comprises a control input signal line and a control output signal line; The plurality of driving pins further comprise a grounding pin, a clock input pin, a clock output pin, a control input pin, a control output pin and a chip control pin; The ground pin is connected with the ground signal line, the clock input pin is connected with the clock input signal line, the clock output pin is connected with the clock output signal line, the control input pin is connected with the control input signal line, the control output pin is connected with the control output signal line, and the chip control pin is connected with the chip driving signal line. The light-emitting area comprises a first column of light-emitting areas extending along the first direction, the first column of light-emitting areas comprises a plurality of first control light-emitting areas arranged along the first direction, each first control light-emitting area comprises a plurality of first sub light-emitting areas, the lamp panel comprises a plurality of light-emitting units positioned in the plurality of first sub light-emitting areas, the second conductive layer comprises a plurality of first connecting signal lines corresponding to the plurality of first sub light-emitting areas and a plurality of second connecting signal lines corresponding to the plurality of first sub light-emitting areas, the plurality of light-emitting units of each first sub light-emitting area are mutually connected in series, and a first light-emitting unit in the plurality of light-emitting units mutually connected in series is connected with the light-emitting driving signal line through the corresponding first connecting signal line; The lamp panel comprises a plurality of driving chips, the driving chips comprise a plurality of first type driving chips which are arranged along the first direction, the driving chips of the first type are correspondingly arranged with the first control light-emitting areas, each driving chip of the first type comprises a plurality of first type light-emitting control pins which correspond to the first sub-light-emitting areas, and each first type light-emitting control pin is connected with the last light-emitting unit in the light-emitting units which are mutually connected in series through the corresponding second connecting signal line and the corresponding first sub-light-emitting areas; The second conductive layer further comprises a plurality of groups of first-type third connection signal line groups corresponding to the plurality of first sub-light-emitting areas, and each first-type third connection signal line group is used for connecting the plurality of light-emitting units in the corresponding first sub-light-emitting areas. Optionally, in the first column of light emitting areas, the first conductive lay