Display panel and display device
By adopting a special-shaped sub-pixel design in the display panel, the area near the via is replaced by the first color resistance with low light penetration rate, the light leakage and twill problems of the embedded touch display device are solved, and the display quality is improved.
Patent Information
- Application Number
- CN202310597351.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-25
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2043-05-25
AI Technical Summary
Existing embedded touch display devices are prone to light leakage and twill under medium and low grayscale visual effects, affecting the user experience.
A special-shaped sub-pixel design is set up in the display panel. By using a first color resistor with a low light penetration near the first via, the risk of light leakage is reduced, and the bright line twill phenomenon under medium and low grayscale visual effects is improved.
It effectively reduces light leakage near the vias, improves the twill phenomenon under the medium and low grayscale visual effects, and improves the overall display quality of the display panel.
Smart Images

Figure CN116661190B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background Art
[0002] Liquid Crystal Displays (LCDs) are widely used flat-panel displays with advantages such as low power consumption, miniaturization, and thinness. LCDs primarily display images by modulating the light intensity of a backlight source using liquid crystal switches. With the advancement of touchscreen display technology, the market trend is to reduce the thickness of the entire display module. Consequently, touchscreen architectures are evolving from external touch sensors to embedded touch sensors. This approach reduces the thickness of touchscreen display panels while significantly reducing touchscreen costs.
[0003] Among various embedded touch display devices, capacitive touch devices are widely used due to their advantages such as strong sensitivity and ability to achieve multi-touch. Capacitive touch technology can be divided into touch technology that uses the mutual capacitance principle and touch technology that uses the self-capacitance principle. Compared with touch technology that uses the mutual capacitance principle, touch technology that uses the self-capacitance principle has higher touch sensing accuracy and signal-to-noise ratio. At present, the implementation principle of self-capacitive touch display panels is generally to connect a single touch electrode and a touch wire to the inside of a touch chip, apply a driving signal to the touch electrode through the touch chip, and the touch electrode can receive feedback signals by itself, that is, when the touch body is not touched, the capacitance borne by the touch electrode is a fixed value. When the touch body is touched, the capacitance borne by the touch electrode changes. Due to the different capacitances before and after, the RC delay (resistance capacitance delay) time of the signal is also different. In this way, different electrical signals will be received before and after the touch body is touched, thereby realizing the determination of the touch point.
[0004] However, in the existing technology, vias are generally used to electrically connect the touch electrodes and touch wires. However, liquid crystal deflection abnormalities are prone to occur at the vias, and the risk of light leakage is high. In medium and low grayscale visual effects, diagonal bright line phenomena are easily generated, causing visual abnormalities and affecting user experience.
[0005] Therefore, providing a display panel and a display device that can reduce the risk of light leakage, improve the diagonal stripe phenomenon under low and medium grayscale visual effects as much as possible, and improve display quality is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention
[0006] In view of this, the present invention provides a display panel and a display device to solve the problem in the prior art that embedded touch display devices are prone to visual anomalies in low and medium grayscale visual effects, affecting user experience.
[0007] The present invention discloses a display panel, comprising: a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer located between the first and second substrates; the first substrate comprises a substrate and a first metal layer and a first electrode layer located on one side of the substrate, the first electrode layer being located on a side of the first metal layer facing the second substrate; the first metal layer comprises a plurality of touch signal lines, and the first electrode layer comprises a first electrode; a first insulating layer is located between the first metal layer and the first electrode layer, the first insulating layer comprises a plurality of first vias, and the first electrodes are electrically connected to the touch signal lines through the first vias; the display panel comprises a plurality of scan lines and a plurality of data lines, the scan lines and the data lines being insulated from each other and intersecting to define a plurality of first regions; the display panel comprises at least a first sub-pixel and a second sub-pixel of different colors, the first sub-pixel comprising a first color resist, the second sub-pixel comprising a second color resist, the light transmittance of the first color resist being less than the light transmittance of the second color resist; the first via and the second sub-pixel are located in the same first region; the first sub-pixel comprises a body region and a sub-region, the body region and the sub-region being located in different first regions, and the sub-region and the second sub-pixel being located in the same first region; an orthographic projection of the sub-region on the substrate is arranged adjacent to an orthographic projection of the first via on the substrate.
[0008] Based on the same inventive concept, the present invention also discloses a display device, which includes the above-mentioned display panel.
[0009] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:
[0010] The display panel provided by the present invention includes a first substrate, a second substrate, and a liquid crystal layer that are arranged relative to each other. The first metal layer located on the side of the first substrate facing the second substrate can be understood as a metal layer in the first substrate, and is used to make the metal conductive structure included in the display panel, such as the first metal layer including multiple touch signal lines. The first electrode layer is located on the side of the first metal layer facing the second substrate. The first electrode included in the first electrode layer can be understood as a common electrode, which is used to access a common voltage signal. A first insulating layer is included between the first metal layer and the first electrode layer, which is used to insulate the structure of the first metal layer from the structure of the first electrode layer while also providing a flattening covering effect on the structure of the first metal layer, which is conducive to making the first electrode layer made on the first insulating layer as flat as possible and ensuring the display effect. When the touch signal line is made in the first metal layer of the same layer as the data line, the present invention opens multiple first vias in the first insulating layer, so that the first electrode is electrically connected to the touch signal line of the first metal layer by passing through the first vias. The first electrode is reused as a touch electrode during the touch phase of the display panel, and the touch signal is transmitted through the touch signal line to realize the touch detection function. Scan lines and data lines of a display panel are insulated from each other and intersect to define a plurality of first regions. The plurality of subpixels in the display panel may include at least a first subpixel and a second subpixel of different colors. The light transmittance of the first color resist of the first subpixel is lower than the light transmittance of the second color resist of the second subpixel. In this embodiment, when the first via hole and the second subpixel are located in the same first region, the first subpixel with lower light transmittance may be a special-shaped subpixel. The special-shaped design utilizes the first color resist with lower light transmittance, and a local area near the first via hole is replaced with the first color resist with lower light transmittance, forming a special-shaped first subpixel including a body region and a sub-region. This allows the sub-region of the first subpixel to be located in the same first region as the second subpixel, and the orthographic projection of the sub-region on the substrate is located near the orthographic projection of the first via hole on the substrate. This reduces the brightness near the first via hole, dimming the light leakage around the previously bright first via hole. This improves the light leakage problem near the first via hole and minimizes the diagonal streaking phenomenon that appears as bright lines in low and medium grayscale visual effects, thereby improving the overall display quality of the display panel.
[0011] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time.
[0012] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
[0014] Figure 1 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;
[0015] Figure 2 yes Figure 1 Schematic diagram of the locally enlarged structure of the middle J1 region;
[0016] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along the A-A' direction;
[0017] Figure 4 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;
[0018] Figure 5 yes Figure 4 Schematic diagram of the locally enlarged structure of the middle J2 area;
[0019] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure along the B-B' direction;
[0020] Figure 7 yes Figure 5 A schematic structural diagram of the first electrode layer and the second electrode layer;
[0021] Figure 8 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;
[0022] Figure 9 yes Figure 8 Schematic diagram of the locally enlarged structure of the middle J3 area;
[0023] Figure 10 yes Figure 8 Another schematic diagram of the locally enlarged structure of the middle J3 region;
[0024] Figure 11 yes Figure 10 A schematic structural diagram of the first electrode layer and the second electrode layer;
[0025] Figure 12 yes Figure 10 Schematic diagram of the cross-sectional structure along the C-C' direction;
[0026] Figure 13 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;
[0027] Figure 14 yes Figure 13 Schematic diagram of the locally enlarged structure of the middle J4 region;
[0028] Figure 15 yes Figure 14 A schematic structural diagram of the first electrode layer and the second electrode layer;
[0029] Figure 16 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;
[0030] Figure 17 yes Figure 16 Schematic diagram of the local enlarged structure of the middle J5 area;
[0031] Figure 18 yes Figure 17 A schematic structural diagram of the first electrode layer and the second electrode layer;
[0032] Figure 19 It is a schematic diagram of the planar structure of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0036] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0037] It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the present invention. Therefore, the present invention is intended to cover modifications and variations of the present invention that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the embodiments provided in the embodiments of the present invention may be combined with each other unless there is any contradiction.
[0038] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0039] Please refer to Figure 1-Figure 3 , Figure 1 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention, Figure 2 yes Figure 1 Schematic diagram of the locally enlarged structure of the J1 area in the middle. Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure along the A-A' direction (it can be understood that in order to clearly illustrate the structure of this embodiment, Figure 1 and Figure 2 The display panel 000 provided in this embodiment includes: a first substrate 10 and a second substrate 20 arranged opposite to each other, and a liquid crystal layer 30 located between the first substrate 10 and the second substrate 20;
[0040] The first substrate 10 includes a substrate 101 and a first metal layer 102 and a first electrode layer 103 located on one side of the substrate 101. The first electrode layer 103 is located on a side of the first metal layer 102 facing the second substrate 20.
[0041] The first metal layer 102 includes a plurality of touch signal lines 1021 , and the first electrode layer 103 includes a first electrode 1031 ;
[0042] A first insulating layer 104 is included between the first metal layer 102 and the first electrode layer 103 . The first insulating layer 104 includes a plurality of first via holes 104K1 . The first electrodes 1031 are electrically connected to the touch signal lines 1021 through the first via holes 104K1 .
[0043] The display panel 000 includes a plurality of scan lines G and a plurality of data lines S. The scan lines G and the data lines S are insulated from each other and cross to define a plurality of first areas 00.
[0044] The display panel 000 includes at least a first sub-pixel PX1 and a second sub-pixel PX2 of different colors. The first sub-pixel PX1 includes a first color resist 2011, and the second sub-pixel PX2 includes a second color resist 2012. The light transmittance of the first color resist 2011 is lower than the light transmittance of the second color resist 2012.
[0045] The first via hole 104K1 and the second sub-pixel PX2 are located in the same first area 00;
[0046] The first sub-pixel PX1 includes a body region PX1A and a sub-region PX1B, the body region PX1A and the sub-region PX1B are located in different first regions 00, and the sub-region PX1B and the second sub-pixel PX2 are located in the same first region 00;
[0047] The orthographic projection of the sub-region PX1B on the substrate 101 is disposed adjacent to the orthographic projection of the first via hole 104K1 on the substrate 101 .
[0048] Specifically, the display panel 000 provided in this embodiment can be a liquid crystal display panel, and the display panel 000 includes a first substrate 10 and a second substrate 20 arranged opposite to each other. Optionally, the first substrate 10 can be understood as an array substrate, and the second substrate 20 can be understood as a color filter substrate including a color resist structure and a black matrix structure, such as Figure 3 As shown, the second substrate 20 includes a color resist layer 201 and a black matrix layer 202. The color resist layer 201 may include a plurality of color resists of different colors. The color resists of different colors may be located at a plurality of openings opened in the black matrix layer 202. Alternatively, in some other optional embodiments, the first substrate 10 may be understood as an array substrate including a color resist structure and a black matrix structure (not shown in the figure), and the second substrate 20 may be understood as a glass substrate. This is not limited in this embodiment. A liquid crystal layer 30 is provided between the first substrate 10 and the second substrate 20. The liquid crystal layer 30 includes liquid crystal molecules. It is understood that in this embodiment, the liquid crystal molecules of the liquid crystal layer 30 are illustrated as positive liquid crystals. In some other optional embodiments, the liquid crystal molecules of the liquid crystal layer 30 may also be negative liquid crystals. In specific implementation, the setting can be selected according to actual needs. When no power is applied, that is, when no driving electric field is applied, the liquid crystal molecules are parallel to the direction of the panel. The angles of positive liquid crystal and negative liquid crystal are different. When power is applied, that is, when a driving electric field is applied, the long axis of the positive liquid crystal molecules is deflected along the direction of the electric field, and the long axis of the negative liquid crystal molecules is deflected perpendicular to the direction of the electric field. During specific implementation, it can be set according to actual needs.
[0049] The first substrate 10 of this embodiment includes at least a substrate 101 and a first metal layer 102 and a first electrode layer 103 located on the side of the substrate 101 facing the second substrate 20. The first electrode layer 103 includes a first electrode 1031. The first electrode 1031 can be understood as a common electrode for accessing a common voltage signal. Optionally, the first substrate 10 of this embodiment may further include a second electrode layer 107. The second electrode layer 107 can be understood as a pixel electrode layer for making a pixel electrode 1071 corresponding to the sub-pixel PX. The first electrode layer 103 of this embodiment is located on the side of the first metal layer 102 facing the second substrate 20, and the second electrode layer 107 is located on the side of the first electrode layer 103 facing the second substrate 20 for example (e.g. Figure 3 In a specific implementation, the second electrode layer 107 may also be located on a side of the first electrode layer 103 away from the second substrate 20 (not shown in the figure), which is not limited in this embodiment.
[0050] The first metal layer 102 of this embodiment can be understood as a conductive metal layer in the first substrate 10, which is used to make the metal conductive structure included in the display panel 000. For example, the first metal layer 102 includes a plurality of touch signal lines 1021; Figure 2 and Figure 3As shown, the substrate 101 side of the first substrate 10 may further include multiple metal film layers, such as multiple metal film layers used to manufacture thin film transistors T, etc. The first metal layer 102 may be understood as one of the multiple metal film layers used to manufacture thin film transistors T. Optionally, as Figure 3 As shown, the side of the substrate 101 facing the second substrate 20 may also include at least a second metal layer 105 and an active layer 106. The second metal layer 105 is used to form the gate of the thin film transistor T, the scan line G of the display panel 000, etc., and the active layer 106 is used to form the active portion of the thin film transistor T. The first metal layer 102 is used to form the source and drain of the thin film transistor T, the data line S, etc., that is, the touch signal line 1021 and the data line S in this embodiment can be arranged on the same layer. The production of the digital control signal line 1021 and the data line S on the same layer can be completed using a single mask plate process, which is beneficial to cost saving and simplifying the process. It is understandable that the first substrate 10 of this embodiment may also include other metal film layers, which will not be described in detail in this embodiment. For details, please refer to the structure of the liquid crystal display panel in the related art.
[0051] When the display panel 000 provided in this embodiment is displaying, the thin film transistor T serves as a switching device for a sub-pixel PX in the display panel 000 and is configured to transmit a pixel voltage signal to the pixel electrode 1071 when in the on state. The gate of the thin film transistor T is connected to a scan line G of the display panel 000 and, via the scan line G, to a scan drive circuit (not shown). The source of the thin film transistor T is connected to a data line S and, via the data line S, to a driver chip or flexible circuit board subsequently attached to the display panel 000 for providing a drive signal. The drain of the thin film transistor T is connected to the pixel electrode 1071, and a data voltage signal is applied to the pixel electrode 1071 via the data line S. This generates an electric field between the pixel electrode 1071 of the second electrode layer 107 and the first electrode 1031 (common electrode) of the first electrode layer 103 that drives the deflection of the liquid crystal molecules in the liquid crystal layer 30. This, in turn, controls whether light is emitted or not through the deflection of the liquid crystal molecules, thereby achieving the display effect of the display panel 000. It is understandable that the display principle of the display panel 000 is not described in detail in this embodiment. During specific implementation, reference may be made to the display principle of liquid crystal display panels in related technologies for understanding.
[0052] In this embodiment, a first insulating layer 104 is included between the first metal layer 102 and the first electrode layer 103. The first insulating layer 104 can be understood as a planarization layer. It serves to insulate the structure of the first metal layer 102 from that of the first electrode layer 103 while also providing a planarized covering for the structure of the first metal layer 102. This facilitates maximum planarization of the first electrode layer 103 formed on the first insulating layer 104, thereby ensuring a good display quality. In this embodiment, when the touch signal lines 1021 are formed on the same layer as the data lines S in the first metal layer 102, a plurality of first vias 104K1 are provided in the first insulating layer 104. This allows the first electrodes 1031 of the first electrode layer 103 to be electrically connected to the touch signal lines 1021 of the first metal layer 102 by passing through these first vias 104K1. During the touch detection phase of the display panel 000, the first electrodes 1031 are reused as touch electrodes, with touch signals transmitted via the touch signal lines 1021 to implement touch detection. The first electrode layer 103 and the second electrode layer 107 can be formed of a transparent conductive material, such as ITO (Indium Tin Oxides, indium tin oxide semiconductor transparent conductive film), etc., which is not limited in this embodiment. The first electrode 1031 of the first electrode layer 103 can be a block structure. It is understood that the area of the block structure of the first electrode 1031 can be larger than the area of a single sub-pixel PX, that is, one first electrode 1031 can correspond to multiple sub-pixels PX. When the display panel 000 performs touch detection, a detection capacitor is formed between the block first electrode 1031 and the common ground. When a touch subject, such as a finger, touches the display panel 000, the capacitance formed between the finger and the capacitor is superimposed on the first electrode 1031 as the touch electrode, thereby forming the touch point coordinates and completing the touch position detection. It is understood that the touch detection principle of the display panel 000 is not described in detail in this embodiment. When implementing it, reference can be made to the touch principle of the embedded touch display panel in the related art for understanding.
[0053] It should be noted that the shape of the pixel electrode 1071 is only drawn for example in the figure of this embodiment. In specific implementation, the shape of the pixel electrode 1071 includes but is not limited to this, and can also be other shapes, which is not limited in this embodiment.
[0054] Since the touch signal line 1021 located in the first metal layer 102 of this embodiment needs to be connected to the first electrode 1031 of the first electrode layer 103 through the first via hole 104K1 opened in the first insulating layer 104, in order to ensure the planarization effect on the first metal layer 102, the first insulating layer 104 needs to be set to be thicker. Therefore, the depth of the first via hole 104K1 opened in the first insulating layer 104 is also deeper, which makes it easy for the first via hole 104K1 of the first insulating layer 104 to be recessed, that is, in the surface of the first substrate 10 facing the liquid crystal layer 30, the first via hole 104K1 is more recessed in the direction closer to the substrate 101 than other positions. In a liquid crystal display panel, the first substrate 10 also typically includes an alignment layer (not shown in the figure). The alignment layer is generally coated with an entire layer of alignment liquid on the surface of the first substrate 10 facing the liquid crystal layer 30. The alignment layer can align the liquid crystal molecules of the liquid crystal layer 30 on the side of the alignment layer away from the substrate 101 to a predetermined direction, thereby achieving the purpose of displaying the display panel 000. However, due to the depression at the first via hole 104K1 of the first insulating layer 104, part of the alignment liquid is likely to fill the depression at the first via hole 104K1 when the alignment liquid is coated. This causes the alignment liquid of the alignment layer in the recess to flow relatively more, and part of the alignment liquid is likely to remain in the recess, resulting in a thinner alignment liquid around the first via 104K1 after the alignment layer is manufactured. This causes abnormal deflection of the liquid crystal molecules near the first via 104K1 when the display panel 000 is displayed, making it particularly prone to light leakage under low and medium grayscale visual effects. Moreover, the light leakage at the positions of multiple first vias 104K1 on the display panel 000 can cause continuous bright lines to appear on the overall display screen, thereby presenting a diagonal stripe phenomenon under low and medium grayscale display screens.
[0055] In order to solve the above problem, the display panel 000 of this embodiment includes a plurality of scan lines G and a plurality of data lines S. The scan lines G and the data lines S are insulated from each other and cross to define a plurality of first areas 00. Figure 1Taking the scan line G shown in the figure as extending along the first direction X, the data line S as extending along the second direction Y, and the first direction X and the second direction Y as an example, the scan line G and the data line S are insulated from each other and the first area 00 defined by the intersection can be understood as a block area. The multiple sub-pixels PX in the display panel 000 can include at least a first sub-pixel PX1 and a second sub-pixel PX2 of different colors, the first sub-pixel PX1 including a first color resist 2011, and the second sub-pixel PX2 including a second color resist 2012 (it can be understood that in order to clearly illustrate the structure of this embodiment, only the first color resist 2011 and the second color resist 2012 are illustrated in the figure. In specific implementation, the color resist layer 201 can also include color resist structures of other colors). The second substrate 20 includes a color resist layer 201. The color resist layer 201 is located at On the side of the second substrate 20 facing the first substrate 10, the first color resist 2011 and the second color resist 2012 are both located in the color resist layer 201. The light transmittance of the first color resist 2011 is less than the light transmittance of the second color resist 2012. For example, the first color resist 2011 may be a blue color resist, and the second color resist 2012 may be a red color resist or a green color resist, i.e., the first sub-pixel PX1 may be a blue sub-pixel, and the second sub-pixel PX2 may be a red sub-pixel or a green sub-pixel. This is not limited in this embodiment. Alternatively, the first color resist 2011 may be a green color resist, and the second color resist 2012 may be a red color resist, i.e., the first sub-pixel PX1 may be a green sub-pixel, and the second sub-pixel PX2 may be a red sub-pixel. It is sufficient that the light transmittance of the first color resist 2011 is less than the light transmittance of the second color resist 2012. This is not limited in this embodiment.
[0056] In this embodiment, the first via 104K1 and the second sub-pixel PX2 are located in the same first area 00, that is, the cross-layer via of the touch signal line 1021 and the first electrode 1031 is arranged in the same first area 00 where the non-blue second sub-pixel PX2 is located, then the blue first sub-pixel PX1 or the first sub-pixel PX1 with lower light transmittance can be an irregular sub-pixel. It can be understood that the irregular sub-pixel of this embodiment can be understood as a sub-pixel whose shape is not the shape of the first area 00, specifically the first sub-pixel PX1 includes a main area PX1A and a sub-area PX1B, the main area PX1A and the sub-area PX1B are located in different first areas 00, compared with the second sub-pixel PX2, the first sub-pixel PX1 adds a irregular structure of the sub-area PX1B, the sub-area PX1B and the second sub-pixel PX2 are located in the same first area 00, and the orthographic projection of the sub-area PX1B on the substrate 101 is adjacent to the orthographic projection of the first via 104K1 on the substrate 101 (the adjacent setting can be understood as the sub-area PX1B of the first sub-pixel PX1 is closest to the first via 104K1, and the position of the sub-area PX1B of the first sub-pixel PX1 does not affect other structures in the same first area 00).
[0057] This embodiment utilizes the first color resist 2011 with low light transmittance to make a special-shaped design, and replaces the local area near the first via 1041K1 (the partial area currently designed as the second color resist) with the first color resist 2011 with low light transmittance, forming a special-shaped first sub-pixel PX1 including a main area PX1A and a sub-area PX1B, so that the sub-area PX1B of the first sub-pixel PX1 and the second sub-pixel PX2 are located in the same first area 00, and the orthographic projection of the sub-area PX1B on the substrate 101 is located near the orthographic projection of the first via 104K1 on the substrate 101, thereby reducing the brightness near the first via 104K1, making the originally bright light leakage area around the first via 104K1 darker, improving the light leakage problem near the first via 104K1, and eliminating the diagonal stripes of bright lines under medium and low grayscale visual effects as much as possible, which is beneficial to improving the overall display quality of the display panel 000.
[0058] It can be understood that the figure of this embodiment is only used as an example to illustrate that the main area PX1A and sub-area PX1B of the same first sub-pixel PX1 are located in two adjacent first areas 00. In specific implementation, the main area PX1A and sub-area PX1B of the same first sub-pixel PX1 can also be located in two non-adjacent first areas 00, which is not limited in this embodiment.
[0059] It can be understood that, in the present embodiment, the sub-area PX1B of the first sub-pixel PX1 can be located adjacent to the first via hole 01K, and can be arranged as much as possible near the first via hole 01K and as close as possible to the position where the first via hole 01K is located without affecting other structural arrangements in the first substrate 10, so that the first color resist 2011 with low light transmittance can improve the light leakage problem as much as possible. The present embodiment does not specifically limit the relative distance between the sub-area PX1B of the first sub-pixel PX1 and the first via hole 104K1, and does not specifically limit the shape and size of the sub-area PX1B of the first sub-pixel PX1. The figure only uses the sub-area PX1B as a square as an example for illustration. In specific implementation, the position, shape and size of the sub-area PX1B of the first sub-pixel PX1 can be specifically set by detecting the degree of light leakage around the first via hole 104K1. The present embodiment does not limit this.
[0060] Optionally, the sub-region PX1B of the first sub-pixel PX1 can be a block structure, and the area of the block sub-region PX1B arranged near the first via hole can be set within an area of 5um×5um, thereby ensuring that the light leakage problem is improved while avoiding the area of the sub-region PX1B of the first sub-pixel PX1 being too large to affect the display effect of the second sub-pixel PX2 in the same first area 00.
[0061] It can be understood that the structure of the display panel 000 is only shown in the figure of this embodiment for example. In specific implementation, the structure of the display panel 000 includes but is not limited to this, and may also include other structures that can realize display and touch functions. For specific understanding, please refer to the structure of the liquid crystal display panel in the relevant technology, and this embodiment will not be described in detail here.
[0062] Optional, such as Figure 1-Figure 3 As shown, along the extension direction of the scan line G (the first direction X shown in the figure), the body region PX1A and the second sub-pixel PX2 are respectively located in two adjacent first regions 00. This embodiment explains that along the first direction X, i.e., the extension direction of the scan line G, the body region PX1A and the second sub-pixel PX2 of the first sub-pixel PX1 are respectively located in two adjacent first regions 00. When the sub-region PX1B of the first sub-pixel PX1 and the second sub-pixel PX2 are located within the same first region 00, the body region PX1A and the sub-region PX1B of the same first sub-pixel PX1 can be located in two adjacent first regions 00. This can make the body region PX1A and the sub-region PX1B of the same first sub-pixel PX1 closer together, facilitating the disposition of the first color resist 2011 in two adjacent and closely spaced first regions 00, thereby reducing the difficulty in manufacturing the first color resist 2011 and improving process efficiency.
[0063] Optional, such as Figure 1-Figure 3 As shown, the first sub-pixel PX1 of the present embodiment is designed to be of a special shape. The first color resist 2011 corresponding to the first sub-pixel PX1 of the color resist layer 201 may also be of a special shape, so that at least a portion of the first color resist 2011 and the second color resist 2012 are located in the same first area 00, that is, the first color resist 2011 with lower light transmittance also has a special structure. The first color resist 2011 includes not only a portion located in the main area PX1A of the first sub-pixel PX1, but also a portion located in the sub-area PX1B of the first sub-pixel PX1, thereby achieving the goal of disposing at least a portion of the first color resist 2011 with lower light transmittance near the first via hole 104K1 to reduce the brightness near the first via hole 104K1, so that the light leakage area around the originally bright first via hole 104K1 becomes darker, thereby improving the light leakage problem near the first via hole 104K1 and improving the overall display quality of the display panel 000.
[0064] Optional, such as Figure 1-Figure 3 As shown, the second substrate 20 of this embodiment further includes a black matrix layer 202, and the black matrix layer 202 includes a light shielding portion 2021. In a direction Z perpendicular to the plane where the substrate 101 is located, at least part of the light shielding portion 2021 is located between the first color resist 2011 and the second color resist 2012 in the same first region 00 (it can be understood that in order to clearly illustrate the structure of the display panel of this embodiment, Figure 1 and Figure 2The black matrix layer 202 is not shown in FIG. The structure of the black matrix layer 202 can be referred to Figure 3 (See the cross-sectional view for understanding.) This embodiment explains that a light shielding portion 2021 can be provided between color resists of different colors to block light and prevent color mixing between sub-pixels of different colors. When the first color resist 2011 corresponding to the first sub-pixel PX1 of the color resist layer 201 is of a special shape, such that the first color resist 2011 includes not only a portion located in the main region PX1A of the first sub-pixel PX1 but also a portion located in the sub-region PX1B of the first sub-pixel PX1, a light shielding portion 2021 is also required between the second color resist 2012 and the first color resist 2011 located in the same first region 00 to prevent color mixing between color resists of different colors within the same first region 00, that is, to prevent color mixing between the second sub-pixel PX2 and the sub-region PX1B of the first sub-pixel PX1 within the same first region 00.
[0065] It is understandable that if Figure 3 As shown, in this embodiment, a light-shielding portion 2021 of the black matrix layer 202 can also be set between the first color resists 2011 located in two adjacent different first areas 00. Although they are between the first color resists 2011 of the same color, the film layer below them is provided with structures such as metal wires. Therefore, a light-shielding portion 2021 can be set between the first color resists 2011 of the same color but located in different first areas 00 to block the signal wiring or thin-film transistor structure in the metal layer below, thereby preventing the metal conductive structure from reflecting light and affecting the display quality.
[0066] In some optional embodiments, please refer to Figure 4-Figure 6 , Figure 4 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention, Figure 5 yes Figure 4 Schematic diagram of the locally enlarged structure of the J2 area in the middle. Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure along the BB' direction (it can be understood that in order to clearly illustrate the structure of this embodiment, Figure 4 and Figure 5 In this embodiment, the first substrate 10 further includes a second electrode layer 107, the second electrode layer 107 includes a first pixel electrode 10711 and a second pixel electrode 10712, the first sub-pixel PX1 includes the first pixel electrode 10711, and the second sub-pixel PX2 includes the second pixel electrode 10712;
[0067] The first pixel electrode 10711 includes a first main electrode portion 10711A and a first sub-electrode portion 10711B. The first main electrode portion 10711A and the first sub-electrode portion 10711B are located in different first regions 00. The first sub-electrode portion 10711B and the second pixel electrode 10712 are located in the same first region 00. The first sub-electrode portion 10711B and the second pixel electrode 10712 are insulated from each other.
[0068] The orthographic projection of the first sub-electrode portion 10711B on the substrate 101 overlaps with the orthographic projection of the sub-region PX1B on the substrate 101 .
[0069] This embodiment explains that the main area PX1A and the sub-area PX1B of the first sub-pixel PX1 can be controlled by the same first pixel electrode 10711, that is, the second electrode layer 107 includes a first pixel electrode 10711 and a second pixel electrode 10712, the first pixel electrode 10711 corresponds to the first sub-pixel PX1, the second pixel electrode 10712 corresponds to the second sub-pixel PX2, the first pixel electrode 10711 includes a first main electrode portion 10711A and a first sub-electrode portion 10711B, the first main electrode portion 10711A corresponds to the main area PX1A of the first sub-pixel PX1, the first sub-electrode portion 10711B corresponds to the sub-area PX1B of the first sub-pixel PX1, so that the first main electrode portion 10711A and the first sub-electrode portion 10711B correspond to the main area PX1A of the first sub-pixel PX1. The portion 10711B is located in a different first area 00, the first sub-electrode portion 10711B and the second pixel electrode 10712 are located in the same first area 00, the first sub-electrode portion 10711B and the second pixel electrode 10712 are insulated from each other, and the orthographic projection of the first sub-electrode portion 10711B on the substrate 101 overlaps with the orthographic projection of the sub-area PX1B on the substrate 101, thereby realizing that the electric field for driving the deflection of the liquid crystal molecules in the main area PX1A and the sub-area PX1B of the first sub-pixel PX1 can be the same first pixel electrode 10711, which is conducive to achieving brightness balance between the main area PX1A and the sub-area PX1B of the first sub-pixel PX1, reducing the brightness difference of the first color resistance 2011 area of the same color, and helping to improve the display quality.
[0070] It is understood that this embodiment does not specifically limit the shape of the first main electrode portion 10711A of the first pixel electrode 10711, and may be a comb-tooth structure as shown in the figure, or may be other shapes. In this embodiment, the first sub-electrode portion 10711B of the first pixel electrode 10711 and the second pixel electrode 10712 are located in the same first region 00, and the first sub-electrode portion 10711B and the second pixel electrode 10712 are insulated from each other. Therefore, the second pixel electrode 10712 may also have a comb-tooth structure, and the length of the comb-tooth electrode can be changed during installation to avoid the first sub-electrode portion 10711B, thereby preventing the two from contacting each other and causing a short circuit.
[0071] It should be noted that the figure of this embodiment only takes the first sub-electrode portion 10711B of the first pixel electrode 10711 as an example of a strip electrode. In specific implementation, the first sub-electrode portion 10711B of the first pixel electrode 10711 can also be other shapes. Please refer to the description of subsequent embodiments for details.
[0072] Optional, such as Figure 4-Figure 6 、 Figure 7 As shown, Figure 7 yes Figure 5 Schematic diagram of the structure of the first electrode layer and the second electrode layer, the first main electrode portion 10711A and the first sub-electrode portion 10711B of the first pixel electrode 10711 are connected by a connecting portion 10711C, and the connecting portion 10711C is located in the second electrode layer 107.
[0073] This embodiment explains that the first main electrode portion 10711A and the first sub-electrode portion 10711B of the first pixel electrode 10711 are connected through the connecting portion 10711C, that is, the first pixel electrodes 10711 located in different first areas 00 can be synchronously controlled through the connection of the connecting portion 10711C, and the connecting portion 10711C is located in the second electrode layer 107. The connecting portion 10711C can be made of an existing film layer, which is conducive to simplifying the difficulty of making the second electrode layer 107 and reducing the thickness of the panel.
[0074] It can be understood that the first sub-pixel PX1 of this embodiment includes a main area PX1A and a sub-area PX1B, the sub-area PX1B and the second sub-pixel PX2 are located in the same first area 00, and the main area PX1A and the sub-area PX1B of the first sub-pixel PX1 are located in two adjacent first areas 00, so that the first main electrode portion 10711A and the first sub-electrode portion 10711B of the same first pixel electrode 10711 are located in two adjacent first areas 00, thereby reducing the length of the connecting portion 10711C when the first main electrode portion 10711A and the first sub-electrode portion 10711B are connected, and avoiding the connecting portion 10711C being too long and the area it passes through being too large to affect the setting of the conductive structure itself in the panel, which is beneficial to reducing the difficulty of wiring.
[0075] In some optional embodiments, please refer to Figure 8-Figure 9 , Figure 8 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention, Figure 9 yes Figure 8 A schematic diagram of a partially enlarged structure of the J3 region (it can be understood that in order to clearly illustrate the structure of this embodiment, Figure 8 and Figure 9In this embodiment, the first electrode 1031 includes a plurality of hollow portions 1031K1. Along the extension direction of the scan line G (the first direction X shown in the figure), the hollow portion 1031K1 is located between two adjacent first regions 00.
[0076] In a direction Z perpendicular to the plane of the substrate 101 , the hollow portion 1031K1 at least partially overlaps with the data line S, at least partially overlaps with the touch signal line 1021 , and does not overlap with the connecting portion 10711C.
[0077] Optionally, the first electrode 1031 of the block structure may further be provided with a plurality of second hollow portions 1031K2, which are located at the connection between the pixel electrode 1071 and the drain of the thin film transistor T, and are used to ensure that the drain of the thin film transistor T remains insulated from the first electrode 1031 when being electrically connected to the pixel electrode 1071.
[0078] The hollow portion 1031K1 of this embodiment can be a strip-shaped slit. In the direction Z perpendicular to the plane of the substrate 101, the hollow portion 1031K1 at least partially overlaps with the data line S, and the hollow portion 1031K1 at least partially overlaps with the touch signal line 1021. The hollow portion 1031K1 can be used to reduce the area of the overlapping portion between the first electrode 1031 and the touch signal line 1021. The hollow portion 1031K1 can be used to reduce the area of the overlapping portion between the first electrode 1031 and the data line S, thereby reducing the parasitic capacitance between the first electrode 1031 and the touch signal line 1021 and the data line S, thereby reducing the signal transmission load of the touch signal line 1021 and the signal transmission load of the data line S, thereby reducing the response time of the touch operation and the driving display, and helping to improve the touch and display sensitivity of the display panel 000.
[0079] In this embodiment, the hollow portion 1031K1 does not overlap with the connecting portion 10711C, which can shorten the length of the hollow portion 1031K1 in the second direction Y, so that the first electrode 1031 can cover the connecting portion 10711C of the second electrode layer 1071, ensuring that the first electrode layer 103 and the second electrode layer 107 overlap to form an electric field that drives the liquid crystal molecules to deflect. It can also enable the first electrode 1031 to shield the transmission signal of the data line S, reduce the coupling effect, and avoid the transmission signal of the data line S from being affected by the coupling, which is beneficial to improving the display quality.
[0080] In some optional embodiments, please refer to Figure 8 、 Figure 10 、 Figure 11 and Figure 12 , Figure 10 yes Figure 8Another local enlarged structural diagram of the J3 area, Figure 11 yes Figure 10 Schematic diagram of the structure of the first electrode layer and the second electrode layer, Figure 12 yes Figure 10 Schematic diagram of the cross-sectional structure along the C-C' direction (it can be understood that in order to clearly illustrate the structure of this embodiment, Figure 10 and Figure 11 In this embodiment, the scan line G extends along the first direction X, and the data line S extends along the second direction Y. The first direction X and the second direction Y are perpendicular to each other.
[0081] The first main electrode portion 10711A includes a plurality of first strip electrodes 10711A1, which are sequentially arranged along the first direction X. The plurality of first strip electrodes 10711A1 are connected by first transverse electrodes 10711A2, which extend along the first direction X. The first strip electrodes 10711A1 form an angle θ1 with the second direction Y.
[0082] The first sub-electrode portion 10711B includes at least one second strip electrode 10711B1. The extension direction of the second strip electrode 10711B1 intersects with the extension direction of the first transverse electrode 10711A2. The angle formed between the second strip electrode 10711B1 and the second direction Y is θ2.
[0083] Among them, θ1<θ2, θ1 and θ2 are both acute angles.
[0084] This embodiment explains that the first main electrode portion 10711A of the body region PX1A of the first sub-pixel PX1 can be a comb-tooth structure, that is, the first main electrode portion 10711A includes a plurality of first strip electrodes 10711A1 arranged in sequence along the first direction X, the plurality of first strip electrodes 10711A1 are connected by a first transverse electrode 10711A2, the first transverse electrode 10711A2 extends along the first direction X, and the first strip electrode 10711A1 can be bent as shown in the figure, so that the first strip electrode 10711A1 forms an acute angle θ1 with the second direction Y (as shown in FIG. Figure 11 As shown), the first sub-electrode portion 10711B of the first sub-pixel PX1 located in another first area 00, i.e., located in the sub-area PX1B of the first sub-pixel PX1, may include at least one second strip electrode 10711B1. In this embodiment, the extension direction of the second strip electrode 10711B1 intersects with the extension direction of the first transverse electrode 10711A2, and the second strip electrode 10711B1 forms an acute angle θ2 with the second direction Y (as shown). Figure 11As shown), and θ2 is greater than θ1. This embodiment takes the liquid crystal molecules in the liquid crystal layer 30 as positive liquid crystal molecules as an example for explanation. The liquid crystal molecules are deflected under the drive of a transverse electric field such as the Ex electric field. The second strip electrode 10711B1 provided near the first via hole 104K1 can form an FFS electric field E (fringe field switching) with the first electrode 1031. Its transverse electric field Ex is equal to E×cosθ2. The larger θ2 is, the smaller Ex that drives the liquid crystal molecules to deflect. The electric field Ex formed along the first direction X at the first via hole 104K1 becomes weaker, so the degree of deflection of the liquid crystal molecules near the first via hole 104K1 becomes smaller (as shown). Figure 12 As shown, the deflection degree of the liquid crystal molecules in the F1 area framed by the dotted line is different from that in other areas, and the light transmittance is also different. The deflection degree of the liquid crystal molecules at the first via hole 104K1 at F1 is smaller than the deflection degree of the liquid crystal molecules at other positions, and the light transmittance becomes smaller. Then, the deflection of the liquid crystal molecules driven near the first via hole 104K1 can be weakened by setting the acute angle θ2 formed by the second strip electrode 10711B1 and the second direction Y to be larger than the acute angle θ1 formed by the first strip electrode 10711A1 and the second direction Y. The electric field strength (the display brightness of the display panel 000 is directly proportional to the electric field strength that drives the deflection of the liquid crystal molecules. The weaker the electric field strength that drives the deflection of the liquid crystal molecules, the smaller the deflection degree of the liquid crystal molecules, the smaller the transmittance of light, and the smaller the brightness) can make the light leakage area around the originally bright first via hole 104K1 further darken, further improve the light leakage problem near the first via hole 104K1, and eliminate the diagonal stripes of bright lines in medium and low grayscale visual effects as much as possible, which is conducive to better improving the overall display quality of the display panel 000.
[0085] It can be understood that, in this embodiment, the first pixel electrode 10711 includes a first sub-electrode portion 10711B and a first main electrode portion 10711A which can be connected via a connecting portion 10711C. The connecting portion 10711C can be understood as a portion of the first horizontal electrode 10711A2 illustrated in the figure, that is, part of the first horizontal electrode 10711A2 can be reused as the connecting portion 10711C, so that the multiple first strip electrodes 10711A1 of the first main electrode portion 10711A can be connected to each other, and the second strip electrode 10711B1 of the first sub-electrode portion 10711B can be connected to the first main electrode portion 10711A, which is beneficial to reducing the structure of the second electrode layer 107 and reducing the difficulty of layout.
[0086] It should be noted that the figures of this embodiment are all illustrated by taking the liquid crystal molecules of the liquid crystal layer 30 as positive liquid crystals. In some other optional embodiments, the liquid crystal molecules of the liquid crystal layer 30 may be negative liquid crystals. In this case, it is necessary to set the acute angle θ2 formed by the second strip electrode 10711B1 and the second direction Y to be smaller than the acute angle θ1 formed by the first strip electrode 10711A1 and the second direction Y. The negative liquid crystal molecules are deflected under the drive of a longitudinal electric field such as the Ey electric field (not shown in the figure). The second strip electrode 10711B1 provided near the first via 104K1 can form an FFS electric field E (Fringe Field Driven Field) with the first electrode 1031. Switching), its longitudinal electric field Ey is equal to E×sinθ2. The smaller θ2 is, the smaller Ey that drives the liquid crystal molecules to deflect. The electric field Ey formed along the second direction Y at the first via hole 104K1 becomes weaker, so the degree of deflection of the liquid crystal molecules near the first via hole 104K1 becomes smaller, and the light leakage near the first via hole 104K1 can also be reduced. This embodiment is not described in detail here.
[0087] In some optional embodiments, please refer to Figure 13 、 Figure 14 and Figure 15 , Figure 13 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention, Figure 14 yes Figure 13 Schematic diagram of the locally enlarged structure of the J4 area. Figure 15 yes Figure 14 Schematic diagram of the structure of the first electrode layer and the second electrode layer (it can be understood that in order to clearly illustrate the structure of this embodiment, Figure 13 and Figure 14 (In which transparency is filled), in this embodiment, the first sub-electrode portion 10711B of the first pixel electrode 10711 includes at least a second strip electrode 10711B1 and a third strip electrode 10711B2, the second strip electrode 10711B1 is connected to the third strip electrode 10711B2, the extension direction of the second strip electrode 10711B1 intersects with the extension direction of the third strip electrode 10711B2, and the extension direction of the third strip electrode 10711B2 is the same as the extension direction of the scan line G.
[0088] This embodiment explains that the first main electrode portion 10711A of the body region PX1A of the first sub-pixel PX1 may have a comb-tooth structure, that is, the first main electrode portion 10711A includes a plurality of first strip electrodes 10711A1 sequentially arranged along the first direction X, the plurality of first strip electrodes 10711A1 are connected by a first transverse electrode 10711A2, and the first transverse electrode 10711A2 extends along the first direction X. The first sub-electrode portion 10711B of the sub-region PX1B of the first sub-pixel PX1 includes at least one second strip electrode 10711B1 and one third strip electrode 10711B2 connected to each other, and the second strip electrode 10711B1 and the third strip electrode 10711B2 extend in different directions, such as Figure 15 As shown, the extension direction of the second strip electrode 10711B1 intersects the extension direction of the third strip electrode 10711B2, and the extension direction of the third strip electrode 10711B2 is the same as the extension direction of the scan line G, that is, the extension direction of the third strip electrode 10711B2 is in the first direction X. In this embodiment, the first sub-electrode portion 10711B includes both the second strip electrode 10711B1 and the third strip electrode 10711B2 in the sub-region PX1B of the first sub-pixel PX1. When the liquid crystal molecules in the liquid crystal layer 30 are positive liquid crystals, the liquid crystal molecules mainly rotate under the transverse electric field formed in the first direction X as shown in the figure. The provision of the second strip electrode 10711B1 enhances the transverse electric field, which easily leads to a larger deflection angle of the liquid crystal molecules in the sub-region PX1B and an increase in brightness, thereby easily affecting the effect of reducing the brightness near the first via hole 104K1. However, after the present embodiment further provides a third strip electrode 10711B2 extending along the first direction X, the provision of the third strip electrode 10711B2 is equivalent to enhancing the longitudinal electric field, such as the electric field formed in the first direction Y as shown in the figure, which can reduce the rotation angle of the liquid crystal at the original position of the first sub-electrode portion 10711B, which is equivalent to the neutralization and cancellation of the transverse electric field generated by the second strip electrode 10711B1 and the longitudinal electric field of the third strip electrode 10711B2, thereby causing the liquid crystal that was originally deflected at the position of the first sub-electrode portion 10711B to turn back and then become darker, which is beneficial to ensuring that the brightness at the position of the first via hole 104K1 is dark enough, improving the light leakage problem near the first via hole 104K1, and ensuring as much as possible that the diagonal stripe phenomenon of bright lines appears under medium and low grayscale visual effects, which is beneficial to better improve the overall display quality of the display panel 000.
[0089] Optional, please refer to Figure 16 、 Figure 17 and Figure 18 , Figure 16 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention, Figure 17 yes Figure 16Schematic diagram of the local enlarged structure of the J5 area in the middle. Figure 18 yes Figure 17 Schematic diagram of the structure of the first electrode layer and the second electrode layer (it can be understood that in order to clearly illustrate the structure of this embodiment, Figure 16 and Figure 17 (with transparency filled in the image), in this embodiment, the orthographic projection of the first sub-electrode portion 10711B of the first pixel electrode 10711 on the substrate 101 is a ring-shaped structure. This embodiment explains that the first main electrode portion 10711A of the body region PX1A of the first sub-pixel PX1 can have a comb-tooth structure, that is, the first main electrode portion 10711A includes a plurality of first strip electrodes 10711A1 arranged sequentially along the first direction X, and the plurality of first strip electrodes 10711A1 are connected by a first horizontal electrode 10711A2, and the first horizontal electrode 10711A2 extends along the first direction X. The orthographic projection of the first sub-electrode portion 10711B of the sub-region PX1B of the first sub-pixel PX1 on the substrate 101 is a ring-shaped structure, so that the first sub-electrode portion 10711B includes both horizontal strip electrodes and vertical strip electrodes, thereby ensuring that the brightness at the position of the first via hole 104K1 is dark enough and improving the light leakage problem near the first via hole 104K1. At the same time, the orthographic projection of the first sub-electrode portion 10711B of the sub-region PX1B of the first sub-pixel PX1 on the substrate 101 can be a ring-shaped structure, which is conducive to simplifying the process technology of the first sub-electrode portion 10711B and improving the process efficiency.
[0090] In some alternative embodiments, please refer to Figure 19 , Figure 19 1 is a schematic diagram of a planar structure of a display device provided in an embodiment of the present invention. The display device 111 provided in this embodiment includes the display panel 000 provided in the above embodiment of the present invention. Figure 19 This embodiment uses a mobile phone as an example to illustrate the display device 111. It is understood that the display device 111 provided in the embodiment of the present invention can be a computer, a television, an in-vehicle display device, or other display device 111 having a display function, and the present invention does not impose any specific limitations thereon. The display device 111 provided in the embodiment of the present invention has the beneficial effects of the display panel 000 provided in the embodiment of the present invention. For details, please refer to the detailed description of the display panel 000 in the above embodiments, and this embodiment will not be repeated here.
[0091] It can be seen from the above embodiments that the display panel and display device provided by the present invention achieve at least the following beneficial effects:
[0092] The display panel provided by the present invention includes a first substrate, a second substrate, and a liquid crystal layer that are arranged relative to each other. The first metal layer located on the side of the first substrate facing the second substrate can be understood as a metal layer in the first substrate, and is used to make the metal conductive structure included in the display panel, such as the first metal layer including multiple touch signal lines. The first electrode layer is located on the side of the first metal layer facing the second substrate. The first electrode included in the first electrode layer can be understood as a common electrode, which is used to access a common voltage signal. A first insulating layer is included between the first metal layer and the first electrode layer, which is used to insulate the structure of the first metal layer from the structure of the first electrode layer while also providing a flattening covering effect on the structure of the first metal layer, which is conducive to making the first electrode layer made on the first insulating layer as flat as possible and ensuring the display effect. When the touch signal line is made in the first metal layer of the same layer as the data line, the present invention opens multiple first vias in the first insulating layer, so that the first electrode is electrically connected to the touch signal line of the first metal layer by passing through the first vias. The first electrode is reused as a touch electrode during the touch phase of the display panel, and the touch signal is transmitted through the touch signal line to realize the touch detection function. Scan lines and data lines of a display panel are insulated from each other and intersect to define a plurality of first regions. The plurality of subpixels in the display panel may include at least a first subpixel and a second subpixel of different colors. The light transmittance of the first color resist of the first subpixel is lower than the light transmittance of the second color resist of the second subpixel. In this embodiment, when the first via hole and the second subpixel are located in the same first region, the first subpixel with lower light transmittance may be a special-shaped subpixel. The special-shaped design utilizes the first color resist with lower light transmittance, and a local area near the first via hole is replaced with the first color resist with lower light transmittance, forming a special-shaped first subpixel including a body region and a sub-region. This allows the sub-region of the first subpixel to be located in the same first region as the second subpixel, and the orthographic projection of the sub-region on the substrate is located near the orthographic projection of the first via hole on the substrate. This reduces the brightness near the first via hole, dimming the light leakage around the previously bright first via hole. This improves the light leakage problem near the first via hole and minimizes the diagonal streaking phenomenon that appears as bright lines in low and medium grayscale visual effects, thereby improving the overall display quality of the display panel.
[0093] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A display panel, characterized in that: include: a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate; The first substrate includes a substrate and a first metal layer and a first electrode layer located on one side of the substrate, wherein the first electrode layer is located on a side of the first metal layer facing the second substrate; The first metal layer includes a plurality of touch signal lines, and the first electrode layer includes a first electrode; A first insulating layer is included between the first metal layer and the first electrode layer, the first insulating layer includes a plurality of first via holes, and the first electrode is electrically connected to the touch signal line through the first via holes; The display panel includes a plurality of scan lines and a plurality of data lines, wherein the scan lines and the data lines are insulated from each other and cross to define a plurality of first areas; The display panel includes at least a first sub-pixel and a second sub-pixel of different colors, the first sub-pixel includes a first color resistor, the second sub-pixel includes a second color resistor, and the light transmittance of the first color resistor is lower than the light transmittance of the second color resistor; The first via hole and the second sub-pixel are located in the same first area; The first sub-pixel includes a body region and a sub-region, the body region and the sub-region are located in different first regions, and the sub-region and the second sub-pixel are located in the same first region; The orthographic projection of the sub-region on the substrate is arranged adjacent to the orthographic projection of the first via hole on the substrate.
2. The display panel according to claim 1, wherein: Along the extending direction of the scan line, the body region and the second sub-pixel are respectively located in two adjacent first regions.
3. The display panel according to claim 1, wherein: The second substrate includes a color resist layer, the color resist layer is located on a side of the second substrate facing the first substrate, and the first color resist and the second color resist are located in the color resist layer; At least part of the first color resist and the second color resist are located in the same first area.
4. The display panel according to claim 3, wherein: The second substrate further includes a black matrix layer, which includes a light-shielding portion. In a direction perpendicular to the plane of the substrate, at least part of the light-shielding portion is located between the first color resist and the second color resist in the same first region.
5. The display panel according to claim 1, wherein: The first substrate further includes a second electrode layer, the second electrode layer includes a first pixel electrode and a second pixel electrode, the first sub-pixel includes the first pixel electrode, and the second sub-pixel includes the second pixel electrode; The first pixel electrode includes a first main electrode portion and a first sub-electrode portion, the first main electrode portion and the first sub-electrode portion are located in different first regions, the first sub-electrode portion and the second pixel electrode are located in the same first region, and the first sub-electrode portion and the second pixel electrode are insulated from each other; An orthographic projection of the first sub-electrode portion on the substrate overlaps with an orthographic projection of the sub-region on the substrate.
6. The display panel according to claim 5, wherein: The first main electrode portion and the first sub-electrode portion are connected via a connecting portion, and the connecting portion is located in the second electrode layer.
7. The display panel according to claim 6, wherein: The first electrode includes a plurality of hollow portions, and along the extension direction of the scanning line, the hollow portions are located between two adjacent first regions; In a direction perpendicular to the plane of the substrate, the hollow portion at least partially overlaps with the data line, the hollow portion at least partially overlaps with the touch signal line, and the hollow portion does not overlap with the connecting portion.
8. The display panel according to claim 5, wherein: The scan line extends along a first direction, the data line extends along a second direction, and the first direction and the second direction are perpendicular to each other; The first main electrode portion includes a plurality of first strip electrodes, the plurality of first strip electrodes are sequentially arranged along the first direction, the plurality of first strip electrodes are connected by first transverse electrodes, and the first transverse electrodes extend along the first direction; an angle θ1 is formed between the first strip electrodes and the second direction; The first sub-electrode portion includes at least one second strip electrode, the extension direction of the second strip electrode intersects with the extension direction of the first transverse electrode, and the angle formed by the second strip electrode and the second direction is θ2; Among them, θ1<θ2, θ1 and θ2 are both acute angles.
9. The display panel according to claim 5, wherein: The first sub-electrode portion includes at least a second strip electrode and a third strip electrode, the second strip electrode is connected to the third strip electrode, the extension direction of the second strip electrode intersects with the extension direction of the third strip electrode, and the extension direction of the third strip electrode is the same as the extension direction of the scan line.
10. The display panel according to claim 5, wherein: The orthographic projection of the first sub-electrode portion on the substrate is a ring-shaped structure.
11. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 10.
Citation Information
Patent Citations
Display panel and display device
CN108279804A
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