CN115220269B - Display panel and display device - Google Patents

Abstract

The utility model discloses a display panel and display device, the display panel includes the color filter base plate, the color filter base plate includes the sub-light filtering unit of a plurality of colours difference, two adjacent sub-light filtering units of edge direction overlap each other, form the spacing arch that is close to the drive backplate, spacer portion locates between drive backplate and the color filter base plate, spacer portion connects in the drive backplate, and part is located between two spacing archs adjacent along the row direction, spacing bellied height promotes greatly, can effectively prevent spacer portion to take place the skew, consequently can be adjacent two the less that the black matrix set up between the light filtering unit, and then promote the aperture ratio and the transmissivity of display panel.

Description

Display panel and display device

Technical Field

The disclosure relates to the technical field of display, in particular to a display panel and a display device.

Background

Currently, large-size and ultra-high definition display panels are favored by more and more users, and the resolution of the display panels is continuously improved from 720P to 1080P, from 2K to 4K to 8K.

When the pixel density (PPI) of the display panel is high, the area of the sub-pixel is small, and the overall aperture ratio is low. At present, the spacer is generally disposed on the Black Matrix (BM), and the black matrix on which the spacer is disposed is relatively large, so that the aperture ratio of the display panel is further reduced, and the transmittance is finally reduced.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The application aims to solve the problem that the transmittance of a display panel is low due to the conventional spacer portion setting mode, and provides a display panel and a display device.

According to one aspect of the present disclosure, a display panel is provided, including a driving back plate, a color film substrate and a spacer portion, where the color film substrate is disposed opposite to the driving back plate, the color film substrate includes a black matrix, the black matrix is located on a surface of the color film substrate near the driving back plate, the black matrix defines a plurality of opening areas arranged in an array, a sub-filter unit is disposed in each opening area, and two adjacent sub-filter units in a row direction overlap with the black matrix respectively to form two limiting protrusions near the driving back plate; the spacer part is arranged between the driving back plate and the color film substrate, is connected with the driving back plate and is partially positioned between the limiting protrusions of two adjacent edges along the row direction.

In one embodiment of the present disclosure, the driving backboard comprises a substrate base plate, a grid electrode layer and a source drain metal layer, wherein the grid electrode layer is arranged on one side of the substrate base plate; the source-drain metal layer is arranged on one side of the grid layer, which is far away from the substrate, and comprises a plurality of data wires; the orthographic projection of the spacer part on the substrate is positioned in the orthographic projection of the data wire on the substrate.

In one embodiment of the present disclosure, the gate layer includes a plurality of gate lines, and an orthographic projection of the gate lines on the substrate and an orthographic projection of the data traces on the substrate overlap to form an overlapping region, and an orthographic projection of the spacer portions on the substrate is located in the overlapping region.

In one embodiment of the present disclosure, a plurality of sub-filter units having different colors form a sub-filter unit row, and orthographic projections of the grid lines on the substrate are located between orthographic projections of two adjacent sub-filter unit rows on the substrate, and the grid lines are used for providing scanning signals for the sub-filter unit rows.

In one embodiment of the disclosure, a plurality of sub-filter units are arranged at intervals along a column direction to form a sub-filter unit column, and orthographic projections of a data wire on a substrate overlap orthographic projections of two adjacent sub-filter unit columns on the substrate, wherein the data wire is used for providing gray scale signals for the sub-filter unit column.

In one embodiment of the present disclosure, the colors of two of the sub-filter units adjacent in the column direction are the same.

In one embodiment of the present disclosure, the height of the spacing bump is 2 microns to 3 microns and the thickness of the sub-filter unit is 1.5 microns to 2.2 microns.

In one embodiment of the present disclosure, the filter unit includes a red sub-filter unit, a green sub-filter unit, and a blue sub-filter unit.

In an embodiment of the disclosure, the display panel further includes a liquid crystal layer disposed between the color film substrate and the driving back plate.

According to another aspect of the present disclosure, there is provided a display device including the display panel according to one aspect of the present disclosure.

The display panel of this disclosure includes color film base plate, color film base plate includes the sub-filter unit of a plurality of colours difference, two adjacent sub-filter units of edge direction overlap each other, form the spacing arch that is close to the drive backplate, spacer portion locates between drive backplate and the color film base plate, spacer portion connects in the drive backplate, and part is located between two spacing archs adjacent along the row direction, spacing bellied height promotes greatly, can effectively prevent spacer portion to take place the skew, consequently can be adjacent the less of black matrix setting between two filter units, and then promote display panel's aperture ratio and transmissivity.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic plan view of a display panel according to an embodiment of the disclosure.

Fig. 2 is a schematic cross-sectional view of another display panel according to an embodiment of the present disclosure.

Fig. 3 is a schematic plan view of a display panel according to another embodiment of the disclosure.

Fig. 4 is a schematic cross-sectional view of yet another display panel according to an embodiment of the present disclosure.

Fig. 5 is a schematic cross-sectional view of still another display panel according to an embodiment of the present disclosure.

In the figure: 22-driving backboard, 221-substrate base plate, 222-active layer, 223-gate insulating layer, 224-gate layer, 2241-gate, 2242-gate line, 225-interlayer dielectric layer, 226-source drain metal layer, 2261-data wire, 2262-source electrode, 2263-drain electrode, 227-flattening layer and 228-buffer layer; 23-pixel layer, 231-common electrode, 232-protective layer, 233-pixel electrode, 234-liquid crystal layer, 235-light emitting layer, 236-pixel defining layer, 2361-pixel opening; 24-color film substrate, 240-filter unit, 241-sub filter unit, 242-black matrix, 243-substrate; 25-spacer portions; 26-limiting protrusions; 27-an encapsulation layer, 271-a first inorganic encapsulation layer, 272-an organic encapsulation layer, 273-a second inorganic encapsulation layer.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.

Pixel density (PPI) is a unit of image resolution and represents the number of pixels (pixels) per inch. The higher the PPI value, the higher the density at which the representative display screen is capable of displaying an image. The existing 8K display device has higher pixel density and lower overall aperture ratio. As shown in fig. 1, the spacer 25 is generally connected to the color film substrate 24, the color film substrate 24 includes a black matrix 242, an opening area is provided on the black matrix 242, and a sub-filter unit 241 is provided in the opening area, and the spacer 25 is generally connected to the black matrix 242. Therefore, the region where the black matrix 242 is connected to the spacer 25 is relatively large, and the distance between the spacer 25 and the edge of the black matrix 242 is generally about 45 μm, and the area of the black matrix 242 increases, so that the aperture ratio of the display panel decreases, and the transmittance of the display panel is eventually lowered.

In addition, in order to prevent the reliability test failure caused by the excessively large offset distance of the spacer 25, the free end of the spacer 25 is close to the side of the gate layer 224 away from the substrate, and typically, a spacing protrusion 26 is disposed on the gate layer 224 around the spacer 25, and the spacing protrusion 26 is disposed on the same layer as the source/drain metal layer 226. The gate layer 224 includes a gate 2241 and a gate line 2242, and the source-drain metal layer 226 includes a source electrode 2262, a drain electrode 2263, and a data line 2261, the source electrode 2262 and the drain electrode 2263 are connected to the gate 2241, and the data line 2261 is connected to the drain electrode 2263. The thickness of the source drain metal layer 226 is generally limited (about 0.6 μm). When the display panel is pressed to emit green, falls off red and blue spots, and has uneven brightness after touching, and other reliability test, the display panel is impacted by a larger external force, so that the spacer part is sometimes extruded out of the limiting boss 26, and after the external force is removed, the spacer part is difficult to automatically recover to an initial position, thereby causing poor reliability test.

Based on this, the embodiment of the present disclosure provides a display panel. As shown in fig. 2 to 5, the display panel includes a driving back plate 22, a color film substrate 24 and a spacer portion 25, the color film substrate 24 is disposed opposite to the driving back plate 22, the color film substrate 24 includes a black matrix 242, the black matrix 242 is located on one surface of the color film substrate 24 near the driving back plate 22, the black matrix 242 defines a plurality of opening areas arranged in an array, a sub-filter unit 241 is disposed in each opening area, and two adjacent sub-filter units 241 in the row direction overlap each other to form two limiting protrusions 26 near the driving back plate 22; the spacer portion 25 is disposed between the driving back plate 22 and the color film substrate 24, and the spacer portion 25 is connected to the driving back plate 22 and is partially disposed between two adjacent limiting protrusions 26 along the column direction.

The color film substrate 24 includes a plurality of sub-filter units 241 with different colors, two adjacent sub-filter units 241 along the first row direction overlap each other to form a spacing protrusion 26 near the driving back plate 22, the spacer portion 25 is disposed between the driving back plate 22 and the color film substrate 24, the spacer portion 25 is connected to the driving back plate 22, and part of the spacer portion is disposed between two adjacent spacing protrusions 26 along the column direction, the height of the spacing protrusion 26 is greatly increased, so that the spacer portion 25 can be effectively prevented from being offset, and therefore, the black matrix 242 between two adjacent filter units 240 is smaller, thereby improving the aperture ratio and the transmittance of the display panel.

As shown in fig. 2, the display panel may include a driving back plate 22, where the driving back plate 22 includes a substrate 221 and a driving circuit layer sequentially stacked, the driving circuit layer is disposed on one side of the substrate 221, and the pixel layer 23 is disposed on one side of the driving circuit layer away from the substrate 221. A buffer layer 228 is provided between the substrate 221 and the driving circuit layer.

In one embodiment of the present disclosure, the substrate 221 may be a substrate 221 of an inorganic material or a substrate 221 of an organic material. For example, in one embodiment of the present disclosure, the material of the substrate base 221 may be a glass material such as soda-lime glass (soda-lime glass), quartz glass, sapphire glass, or a metal material such as stainless steel, aluminum, nickel, or the like.

In another embodiment of the present disclosure, the material of the substrate base 221 may be polymethyl methacrylate (Polymethyl methacrylate, PMMA), polyvinyl alcohol (Polyvinyl alcohol, PVA), polyvinyl phenol (PVP), polyethersulfone (Polyether sulfone, PES), polyimide, polyamide, polyacetal, polycarbonate (PC), polyethylene terephthalate (Polyethylene terephthalate, PET), polyethylene naphthalate (Polyethylene naphthalate, PEN), or a combination thereof.

In another embodiment of the present disclosure, the substrate 221 may also be a flexible substrate 221, for example, the material of the substrate 221 may be Polyimide (PI). The substrate 221 may also be a composite of multiple layers of materials, for example, in one embodiment of the present disclosure, the substrate 221 may include a base Film layer (Bottom Film), a pressure sensitive adhesive layer, a first polyimide layer, and a second polyimide layer, which are sequentially stacked.

The driving circuit layer includes a plurality of driving circuit regions. Any one of the driving circuit regions may include a transistor and a storage capacitor. The transistor may be a thin film transistor, and the thin film transistor may be selected from a top gate thin film transistor, a bottom gate thin film transistor, or a double gate thin film transistor.

The material of the active layer of the thin film transistor may be an amorphous silicon semiconductor material, a low temperature polysilicon semiconductor material, a metal oxide semiconductor material, an organic semiconductor material or other types of semiconductor materials; the thin film transistor may be an N-type thin film transistor or a P-type thin film transistor.

The transistor may have a first terminal, a second terminal, and a control terminal, one of the first terminal and the second terminal may be a source of the transistor and the other may be a drain of the transistor, and the control terminal may be a gate of the transistor. It is understood that the source and drain of a transistor are two opposite and interchangeable concepts; the source and drain of the transistor may be interchanged when the operating state of the transistor is changed, for example when the direction of the current is changed.

In the present disclosure, the driving circuit layer may include a transistor layer, an interlayer dielectric layer 225, and a source drain metal layer 226 sequentially stacked on the substrate 221. Wherein the transistor layer is provided with an active layer and a gate of the transistor, and the source-drain metal layer 226 is electrically connected with a source and a drain of the transistor. Alternatively, the transistor layer may include an active layer 222, a gate insulating layer 223, and a gate layer 224 stacked between the substrate base 221 and an interlayer dielectric layer 225. The positional relationship of each film layer can be determined according to the film layer structure of the thin film transistor.

In some embodiments, the active layer 222 may be used to form an active layer of a transistor, the active layer of a semiconductor including a channel region and source and drain electrodes located at both sides of the channel region; wherein the channel region may maintain semiconductor characteristics and the semiconductor material of the source and drain are partially or fully conductive. The gate layer 224 may be used to form a gate layer trace such as a scan trace, may be used to form a gate of a transistor, and may be used to form part or all of an electrode plate of a storage capacitor. The source drain metal layer 226 may be used to form source drain metal layer traces such as data traces 2261, power traces, and the like.

Taking a top gate thin film transistor as an example, in some embodiments of the present disclosure, the driving circuit layer may include an active layer 222, a gate insulating layer 223, a gate layer 224, an interlayer dielectric layer 225, and a source drain metal layer 226, which are sequentially stacked.

The driving circuit layer may further include a planarization layer 227, and the planarization layer 227 may be provided in one or more layers according to circumstances. The planarization layer 227 may be disposed on a side of the source-drain metal layer 226 of the driving transistor away from the substrate 221, and a surface of the planarization layer 227 away from the substrate 221 is a plane. The planarization layer 227 is provided with a plurality of first vias at intervals exposing the source-drain metal layer 226 of the driving transistor.

The display panel further includes a pixel layer, the pixel layer 23 may be disposed on a side of the planarization layer 227 away from the substrate 221, the pixel layer 23 includes a common electrode 231, the common electrode 231 is provided with a plurality of second vias at intervals, and orthographic projections of the second vias on the substrate 221 are located in orthographic projections of the first vias on the substrate 221.

The side of the common electrode 231 far away from the substrate 221 is provided with a protection layer 232, the protection layer 232 covers the side of the common electrode 231 far away from the substrate 221, the protection layer 232 extends to the source drain metal layer 226 of the driving transistor from the position of the common electrode 231 provided with the second through hole and the position of the planarization layer 227 provided with the first through hole, and one end part of the protection layer 232 close to the substrate 221 covers the source drain metal layer 226 of the driving transistor to form an opening exposing part of the source drain metal layer 226 of the driving transistor. The side of the protection layer 232 away from the substrate 221 is provided with a plurality of pixel electrodes 233, and the pixel electrodes 233 are disposed in the openings and connected with the source-drain metal layer 226 of the driving transistor.

A liquid crystal layer 234 is provided on a side of the pixel electrode 233 remote from the source-drain metal layer 226 of the driving transistor, and the liquid crystal layer 234 covers the protective layer 232 and the source-drain metal layer 226 of the driving transistor. Since the protective layer 232 is provided between the pixel electrode 233 and the common electrode 231, and the pixel electrode 233 and the common electrode 231 each have a driving surface, the liquid crystal layer 234 can be considered to be located between the pixel electrode 233 and the common electrode 231. The side of the liquid crystal layer 234 away from the substrate is provided with the color film substrate 24, and an insulating layer 236 may be provided on the side of the color film substrate 24 away from the substrate 221.

As shown in fig. 3 and fig. 4, the color film substrate 24 includes a substrate 243, one side of the substrate 243 is provided with a black matrix 242, an opening area array is defined on the black matrix 242, the opening area array includes a plurality of opening area rows arranged along a row direction, each opening area row includes a plurality of opening areas, a sub-filter unit 241 is disposed in each opening area, colors of two adjacent sub-filter units 241 in the opening area row are different, and the plurality of sub-filter units 241 located in the same opening area row form a plurality of filter units 240, and generally one filter unit 240 may include a red sub-filter unit, a green sub-filter unit and a blue sub-filter unit.

The plurality of filter units 240 are adjacently disposed along the row direction, the sub-filter units 241 having different colors distributed along the row direction form a sub-filter unit row, the orthographic projection of the grid line 2242 on the substrate 221 is located between the orthographic projections of the adjacent two sub-filter unit rows on the substrate 221, and the grid line 2242 is used for providing scanning signals for the sub-filter unit rows. It will be appreciated that the orthographic projection of the grid line 2242 on the substrate 221 is within the orthographic projection of the area of the black matrix 242 located between adjacent rows of sub-filter cells on the substrate 221.

The plurality of filter units 240 are arranged at intervals along the column direction, the colors of two adjacent sub-filter units 241 along the column direction may be the same, the sub-filter units 241 with the same color form a sub-filter unit column, the front projection of the data wire 2261 on the substrate 221 overlaps the front projection of the adjacent two sub-filter unit columns on the substrate 221, and the data wire 2261 is used for providing gray scale signals for the sub-filter unit columns. It will be appreciated that the data tracks 2261 are located in the orthographic projection of the areas of the black matrix 242 between adjacent columns of sub-filter cells on the substrate 221. The column direction is perpendicular to the row direction.

In the adjacent two sub-filter unit rows, two adjacent sub-filter units 242 in one sub-filter unit row overlap each other to form a spacing protrusion 26 of one row close to the driving back plate 22, and two adjacent sub-filter units 242 in the other sub-filter unit row overlap each other to form a spacing protrusion 26 of the other row close to the driving back plate 22. In the column direction, the stopper projections 26 are adjacent to each other. It can be understood that, in two adjacent filter units 240 located in the same column, four limit protrusions 26 are formed along the column direction, and the four limit protrusions 26 are adjacent to each other in the column direction.

The adjacent two filter units 240 may overlap each other as shown in fig. 1: adjacent sub-filter units 242 are overlapped in sequence, i.e., one sub-filter unit 242 is overlapped on another adjacent sub-filter unit 242. The adjacent two filter units 240 may overlap each other in such a manner that one sub-filter unit 242 overlaps the other two adjacent sub-filter units 242 as shown in fig. 4.

A spacer part 25 is arranged between the driving backboard 22 and the color film substrate 24, one end of the spacer part 25 is connected with the driving backboard 22, and the other end extends to between two adjacent limiting protrusions 26. A plurality of spacer portions 25 are generally disposed between the driving back plate 22 and the color film substrate 24, one sub-filter unit row generally includes a plurality of filter units, each two opposite filter units 240 may form two opposite sets of limiting protrusions 26, one set of limiting protrusions 26 includes two limiting protrusions 26, and each spacer portion 25 may be disposed between each two opposite limiting protrusions 26, so that limiting of the plurality of spacer portions 25 may be achieved.

Since the thickness of the filter unit 240 is generally 1.5-2.2 μm, and the height of the limiting protrusion 26 is 2.0-3.0 μm after the partial overlapping, the offset of the spacer 25 can be effectively prevented, and since the offset of the spacer 25 is difficult, the problem of poor reliability can be greatly improved even if the black matrix 242 corresponding to the spacer 25 is reduced to about 25 μm, and the aperture ratio and transmittance of the display panel are improved.

The spacer portion 25 can only be disposed between adjacent sub-filter unit rows, and specifically may be disposed on the data line 2261 between adjacent sub-filter unit rows, that is, the orthographic projection of the spacer portion 25 on the substrate 221 is located in the orthographic projection of the data line 2261 on the substrate 221.

Further, in order to determine the location of the spacer 25, the spacer 25 may be disposed at an overlapping position of the data trace 2261 and the gate line 2242, that is, an overlapping region is formed by overlapping an orthographic projection of the data trace 2261 on the substrate 221 with an orthographic projection of the gate line 2242 on the substrate 221, and the orthographic projection of the spacer 25 on the substrate 221 is located in the overlapping region.

It should be noted that, in general, the spacer portion 25 may be disposed on a side of the protection layer 232 away from the substrate 221. The spacer portion 25 may be formed by the following process: a spacer layer is formed on a side of the protective layer 232 remote from the substrate 221, and the spacer layer is subjected to photolithography to form a patterned spacer layer including a plurality of spacer portions 25.

It will be appreciated that the structure may be used not only in liquid crystal displays (Liquid Crystal Display, LCD), but also in displays employing Organic Light-Emitting diodes (OLED). As shown in fig. 5, when the display panel is an OLED, the pixel layer 23 includes a pixel defining layer 236 and a plurality of sub-pixels. The pixel defining layer 236 has a plurality of pixel openings 2011, and a plurality of sub-pixels are disposed in the plurality of pixel openings 2011, respectively.

The plurality of sub-pixel arrays are distributed on a side of the driving backplate 22 away from the substrate 221, and specific sub-pixels may be located on a side of the planarization layer away from the substrate 221. The sub-pixels may include red sub-pixels, green sub-pixels, and blue sub-pixels according to the light emission colors.

The sub-pixel may include a pixel electrode 233, a light emitting layer 235, and a common electrode 231, where the pixel electrode 233 is located on a surface of the driving backplate 22 away from the substrate 221, the light emitting layer 235 is located on a surface of the pixel electrode 233 away from the substrate 221, and the common electrode 231 is located on a surface of the light emitting layer 235 away from the substrate 221.

The side of the pixel layer 23 away from the substrate 221 is provided with a packaging layer 27, so that the pixel layer 23 is coated to prevent water and oxygen erosion. The encapsulation layer 27 may have a single-layer or multi-layer structure, and the material of the encapsulation layer 27 may include an organic or inorganic material, which is not particularly limited herein.

In this embodiment, the encapsulation layer 27 may include a first inorganic encapsulation layer 271, an organic encapsulation layer 272 and a second inorganic encapsulation layer 273, where the first inorganic encapsulation layer 271 is disposed on a side of the pixel layer 23 away from the substrate 221, the organic encapsulation layer 272 is disposed on a side of the first inorganic encapsulation layer 271 away from the substrate 221, and the second inorganic encapsulation layer 273 is disposed on a side of the organic encapsulation layer 272 away from the substrate 221.

The color film substrate 24 may be disposed on a side of the encapsulation layer 27 away from the driving back plate 22, the spacer portion 25 may be formed between the encapsulation layer 27 and the color film substrate 24, and a region between the encapsulation layer 27 and the color film substrate 24 where the spacer portion 25 is not disposed may be filled with an insulating layer. The structure of the color filter substrate 24 is described in detail above, and will not be described here again.

The disclosure further provides a display device, which may include the display panel of any one of the above embodiments of the disclosure. The specific structure of the display panel has been described in detail above, and thus, will not be described here again.

It should be noted that, the display device includes other necessary components and components besides the display panel, for example, a display, specifically, a housing, a circuit board, a power cord, etc., and those skilled in the art can correspondingly supplement the components and components according to the specific usage requirement of the display device, which is not described herein.

The display device may be a conventional electronic device, for example: cell phones, computers, televisions, and camcorders, but also emerging wearable devices, such as: virtual reality devices and augmented reality devices are not listed here.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A display panel, comprising:

a drive back plate;

the color film substrate is arranged opposite to the driving backboard, the color film substrate comprises a black matrix, the black matrix is positioned on one surface of the color film substrate, which is close to the driving backboard, the black matrix defines a plurality of opening areas arranged in an array manner, each opening area is internally provided with a sub-filtering unit, and two adjacent sub-filtering units are mutually overlapped along the row direction to form two limiting protrusions, which are close to the driving backboard;

the spacer part is arranged between the driving back plate and the color film substrate, is connected with the driving back plate and is partially positioned between two adjacent limit protrusions along the row direction.

2. The display panel of claim 1, wherein the driving back plate comprises:

a substrate base;

the grid layer is arranged on one side of the substrate base plate;

the source-drain metal layer is arranged on one side, far away from the substrate, of the grid electrode layer, and comprises a plurality of data wires;

the orthographic projection of the spacer part on the substrate is positioned in the orthographic projection of the data wire on the substrate.

3. The display panel of claim 2, wherein the gate layer includes a plurality of gate lines, an orthographic projection of the gate lines on the substrate overlaps an orthographic projection of the data traces on the substrate to form an overlapping region, and an orthographic projection of the spacer portions on the substrate is located in the overlapping region.

4. A display panel as claimed in claim 3, characterized in that a plurality of the sub-filter units of mutually different colors form a sub-filter unit row, the front projections of the grid lines on the substrate being located between the front projections of two adjacent sub-filter unit rows on the substrate, the grid lines being arranged to provide scanning signals for the sub-filter unit rows.

5. The display panel according to claim 4, wherein a plurality of the sub-filter units are arranged at intervals along a column direction to form a sub-filter unit column, and orthographic projections of the data trace on the substrate overlap orthographic projections of two adjacent sub-filter unit columns on the substrate, and the data trace is used for providing gray scale signals for the sub-filter unit columns.

6. The display panel according to claim 5, wherein the colors of two of the sub-filter units adjacent in the column direction are the same.

7. The display panel of claim 1, wherein the height of the limit bump is 2-3 microns, and the thickness of the sub-filter unit is 1.5-2.2 microns.

8. The display panel of claim 1, wherein the filter unit includes a red sub-filter unit, a green sub-filter unit, and a blue sub-filter unit.

9. The display panel of claim 1, further comprising a liquid crystal layer disposed between the color film substrate and the drive back plate.

10. A display device comprising the display panel of any one of claims 1-9.