Display panel and display device

Abstract

This application discloses a display panel and display device. The display panel includes a counter substrate and an array substrate arranged in a box. The display panel has a display area and a non-display area surrounding the display area. The display panel also includes a sealant and a color compensation structure. The sealant is arranged along the display area and sealed between the counter substrate and the array substrate. The color compensation structure is arranged on or near the sealant. The color compensation structure is used to balance the transmittance of red, green, and blue light to improve the yellowish color of the display panel. The technical solution of this application can reduce the yellowing phenomenon near the sealant.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and specifically relates to a display panel and a display device. Background Art

[0002] To reduce costs, display panel manufacturers design displays in a variety of form factors, such as the teardrop and notch designs used in mobile phones. When manufacturing these displays, the teardrop or notch sealant can be pressed into the pixel area, causing light to appear yellow near the sealant when it passes through the pixel openings. Summary of the Invention

[0003] The purpose of the present application is to provide a display panel and a display device that can effectively reduce the yellowing of the area near the frame glue.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0005] According to one aspect of an embodiment of the present application, the present application provides a display panel, comprising an opposing substrate and an array substrate arranged in a cell-to-cell manner, the display panel having a display area and a non-display area surrounding the display area, and further comprising:

[0006] a frame glue, the frame glue being arranged along the display area and sealed between the counter substrate and the array substrate;

[0007] A color compensation structure is provided on or near the frame glue, and is used to balance the transmittance of red light, green light, and blue light to improve the yellowish display of the display panel.

[0008] In one aspect, the color compensation structure comprises:

[0009] a first main spacer, the first main spacer being disposed in the display area;

[0010] The second main spacer is arranged in the non-display area, the second main spacer is used to overlap with the frame glue, and the overlapping height of the second main spacer and the frame glue is less than or equal to the height of the first main spacer.

[0011] In one aspect, the color compensation structure further comprises:

[0012] a first auxiliary spacer, the first auxiliary spacer being disposed in the display area;

[0013] a second auxiliary spacer, the second auxiliary spacer being disposed in the non-display area, the first main spacer having a height greater than that of the first auxiliary spacer, and the second main spacer having a height greater than that of the second auxiliary spacer;

[0014] The second auxiliary spacer is used to overlap with the sealant, and a overlapping height of the second auxiliary spacer and the sealant is less than or equal to a height of the first auxiliary spacer.

[0015] In one aspect, the height difference between the first main spacer and the first auxiliary spacer is a first difference;

[0016] A height difference between the second main spacer and the second auxiliary spacer is a second difference, and the first difference is equal to the second difference.

[0017] In one aspect, the non-display area extends toward the display area to form an embedded area, the second main spacer and the second auxiliary spacer are arranged in the embedded area, the area of ​​the embedded area is S1, and the area of ​​the display area is S2, then: 5‰≤S1 / S2≤20‰ is satisfied.

[0018] In one aspect, the counter substrate includes a transparent substrate and a black matrix layer, wherein the black matrix layer is disposed on a surface of the transparent substrate, the black matrix layer includes a plurality of blocking blocks arranged in a matrix, and the first main spacer and the second main spacer are respectively disposed under one of the blocking blocks;

[0019] The orthographic projection area of ​​the blocking block on the transparent substrate is M1, and the orthographic projection area of ​​the first main spacer or the second main spacer on the transparent substrate is M2, then the following is satisfied: M2≤M1.

[0020] In one aspect, the blocking block divides the transparent substrate into at least adjacent red sub-pixel areas, green sub-pixel areas, and blue sub-pixel areas within the display area;

[0021] The color compensation structure further includes:

[0022] a light control layer, the light control layer being close to the sealant and disposed on the light-emitting surface of the opposing substrate or the light-incoming surface of the array substrate, the light control layer comprising a first control layer, a second control layer, and a third control layer, the first control layer being disposed opposite the red sub-pixel region, the second control layer being disposed opposite the green sub-pixel region, and the third control layer being disposed opposite the blue sub-pixel region;

[0023] an electrode layer, the electrode layer comprising a first electrode layer, a second electrode layer, and a third electrode layer, the first electrode layer corresponding to the first control layer, the second electrode layer corresponding to the second control layer, and the third electrode layer corresponding to the third control layer, wherein power is applied to the first electrode layer, the second electrode layer, and the third electrode layer, respectively, to control the amount of light transmitted through the first control layer, the second control layer, and the third control layer;

[0024] A common electrode layer is entirely laid on the surface of the light control layer, and the common electrode layer and the electrode layer are respectively arranged on two opposite sides of the light control layer.

[0025] In one aspect, the light control layer is electronic paper, the first control layer includes red ink, the second control layer includes green ink, and the third control layer includes blue ink;

[0026] The color compensation structure further includes a hydrophobic layer, and the hydrophobic layer is arranged between the light control layer and the electrode layer.

[0027] In one aspect, the light control layer is an electrochromic layer, the first control layer is an electrochromic red layer, the second control layer is an electrochromic green layer, and the third control layer is an electrochromic blue layer.

[0028] In addition, in order to solve the above problems, the present application also provides a display device, which includes a backlight source and a display panel as described above, and the backlight source is arranged on a side of the array substrate away from the opposing substrate.

[0029] In the present application, a color compensation structure is used to balance the light transmittance of red light, green light and blue light in the pixel opening area. For positions with yellowish color, the amount of blue light emitted is increased or the amount of red light and green light emitted is reduced, thereby improving the yellowish display of the display panel, that is, reducing the yellowing of the pixel opening area near the frame glue.

[0030] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0032] Figure 1The front structure diagram of the display panel of the present application is schematically shown.

[0033] Figure 2 The side structure diagram of the display panel manufactured in the present application is schematically shown.

[0034] Figure 3 The cross-sectional structure diagram of the embedded area of ​​the display panel in this application is schematically shown.

[0035] Figure 4 The schematic diagram shows the position structure of the electrode layer when the light control layer of the present application is electronic paper.

[0036] Figure 5 The schematic diagram shows the position structure of the electrode layer when the light control layer of the present application is an electrochromic layer.

[0037] Figure 6 The schematic diagram of the process steps of the manufacturing method in this application is shown schematically.

[0038] The following are the descriptions of the reference numerals:

[0039] 10. Counter substrate; 20. Array substrate; 30. Frame glue; 40. Photomask; 50. Curing light;

[0040] 110, display area; 120, non-display area; 121, embedded area; 130, black matrix layer; 140, color filter layer; 150, light control layer; 151, first control layer; 152, second control layer; 153, third control layer; 160, electrode layer; 161, first electrode layer; 162, second electrode layer; 163, third electrode layer; 170, common electrode layer; 180, hydrophobic layer; 190, transparent photosensor;

[0041] 100, transparent substrate; 101, first main spacer; 102, second main spacer; 103, first auxiliary spacer; 104, second auxiliary spacer; 131, blocking block; 210, thin film transistor; 310, adhesive layer; 320, supporting particles; T1, first light-transmitting area; T2, second light-transmitting area; T3, third light-transmitting area; T4, fourth light-transmitting area. DETAILED DESCRIPTION

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0043] Example 1

[0044] See Figures 1 to 3As shown, the present application discloses a display panel comprising an opposing substrate 10 and an array substrate 20 arranged in a box-like arrangement. The display panel has a display area 110 and a non-display area 120 surrounding the display area 110. The display panel also includes a sealant 30 and a color compensation structure. The display panel of the present application may be a liquid crystal panel. A plurality of pixel units are formed in the display area 110 of the display panel. A pixel unit generally includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel. The three sub-pixels emit light separately, and the light intensity or amount of each sub-pixel is adjusted to thereby display different colors in the pixel unit.

[0045] The sealant 30 is arranged along the display area and sealed between the opposing substrate 10 and the array substrate 30. The sealant 30 generally surrounds the display area 110. The sealant 30 reduces the entry of moisture into the interior of the display panel and avoids adverse effects on various TFT (Thin Film Transistor) switches.

[0046] The color compensation structure is located on or near the sealant 30. It balances the transmittance of red, green, and blue light to improve the yellowish tint of the display panel. Typically, a yellowish tint on a display panel is caused by a low amount of blue light or a high amount of red and yellow light. The color compensation structure can reduce the amount of red and yellow light, or increase the amount of blue light, thereby reducing the yellowish tint on the display panel.

[0047] In this embodiment, the color compensation structure is used to balance the light transmittance of red light, green light and blue light in the pixel opening area. For positions with yellowish color, the amount of blue light emitted is increased, or the amount of red light and green light emitted is reduced, thereby improving the yellowish display of the display panel, that is, reducing the yellowing of the pixel opening area near the frame glue.

[0048] The display area 110 is the main area for light transmission, thereby forming a display image in the display area 110. The non-display area 120 is generally opaque and is used to lay control components and circuits, such as gate control circuits and data scanning circuits, as well as various control chips.

[0049] Typically, the display area 110 is in a square shape, and the non-display area 120 is disposed around the display area 110 , and the non-display area 120 is also in a square shape.

[0050] In the present application, when making a water drop-shaped or bangs-shaped display screen, the frame glue will be pressed into the pixel area, resulting in a height difference between the pixel opening position and the supporting spacer layer in the pixel area. When the light passes through the pixel opening near the frame glue, the height near the frame glue is higher, resulting in yellowing around the water drop and bangs.

[0051] In this regard, the color compensation structure in one embodiment of the present application includes a first main spacer 101 and a second main spacer 102. Spacers, also known as PS (photo spacers), are primarily used to maintain structural stability, supporting the opposing substrate 10 and array substrate 20 to maintain a certain distance between them.

[0052] The technical solution of the present application can be applied to liquid crystal displays. In this way, the spacer functions to support the counter substrate 10 and the array substrate 20 so that a liquid crystal layer can be placed therebetween to prevent the liquid crystal layer from being squeezed.

[0053] Specifically, the first main spacer 101 is provided in the display area 110 ; a plurality of first main spacers 101 may be provided, and they may be laid out according to the required specifications. The first main spacer 101 is mainly used to support the structure of the display area 110 .

[0054] The second main spacer 102 is disposed in the non-display area 120 and is configured to overlap with the sealant 30. The overlapping height of the second main spacer 102 and the sealant 30 is less than or equal to the height of the first main spacer 101. Similarly, a plurality of second main spacers 102 may be provided to support the structure of the non-display area 120.

[0055] When setting the frame glue 30, it is generally set along the boundary of the display area 110. Due to the setting of the frame glue 30, the main spacer pressed onto the frame glue 30 position will increase the height, resulting in a higher height around the frame glue 30. In order to reduce the height difference between the non-display area 120 and the display area 110, the height of the second main spacer 102 can be reduced. After the second main spacer 102 is superimposed with the frame glue 30, the height is less than the first main spacer 101, or the height of the second main spacer 102 after superimposing the frame glue 30 is equal to the first main spacer 101. In this way, the box thickness between the opposing substrate 10 and the array substrate 20 at the display area 110 and the non-display area 120 is basically equal, reducing the yellowing of the frame glue 30 due to uneven height.

[0056] In this embodiment, by reducing the height of the second main spacer 102, the second main spacer 102 can be substantially equal in height to the first main spacer 101 after the frame glue 30 is superimposed. This reduces the possibility of the frame glue 30 being too high after superimposing the second main spacer 102. The height near the frame glue 30 is ensured to be substantially equal to the height of the display area 110, reducing the height difference between the pixel opening area and the location where the frame glue 30 is superimposed. This reduces the overall thickness of the frame glue 30, reducing the yellow wavelength shift of light transmitted through the pixel opening area, that is, reducing the amount of red and green light, increasing the amount of blue light, and reducing the yellowing of the pixel opening area near the frame glue 30.

[0057] The first main spacer 101 and the second main spacer 102 are used to support the opposing substrate 10 and the array substrate 20. However, sometimes the main spacer is deformed under pressure, and the supporting effect of the main spacer is reduced. In order to prevent the liquid crystal layer from being damaged by pressure, in one embodiment of the present application, the opposing substrate 10 also includes a first auxiliary spacer 103 and a second auxiliary spacer 104. The first auxiliary spacer 103 is arranged in the display area 110, and the second auxiliary spacer 104 is arranged in the non-display area 120. The height of the first main spacer 101 is greater than the height of the first auxiliary spacer 103, and the height of the second main spacer 102 is greater than the height of the second auxiliary spacer 104; the overlapping height of the second auxiliary spacer 104 and the frame glue 30 is less than or equal to the height of the first auxiliary spacer 103.

[0058] In this embodiment, there are two types of main spacers (Main PS), namely, a first main spacer 101 and a second main spacer 102 , and two types of sub-spacers (Sub PS), namely, a first sub-spacer 103 and a second sub-spacer 104 .

[0059] Generally, the number of auxiliary spacers is greater than the number of main spacers. The auxiliary spacers can further improve the supporting strength between the counter substrate 10 and the array substrate 20 .

[0060] For example, when the main spacer loses its supporting function or its supporting function is reduced, and to prevent the sealant 30 from yellowing, the height of the second auxiliary spacer 104 after overlapping the sealant 30 is equal to the height of the first auxiliary spacer 103, or the height of the second auxiliary spacer 104 after overlapping the sealant 30 is less than the height of the first auxiliary spacer 103. This further ensures that after the main spacer fails, the thickness of the counter substrate 10 and the array substrate 20 can still be maintained while reducing the yellowing of the sealant 30.

[0061] In one embodiment of the present application, to ensure that the first main spacer 101 can play a supporting role, the height of the first main spacer 101 is greater than that of the first auxiliary spacer 103 , and the height difference between the first main spacer 101 and the first auxiliary spacer 103 is a first difference.

[0062] The height of the second main spacer 102 is greater than the height of the second auxiliary spacer 104. The height difference between the second main spacer 102 and the second auxiliary spacer 104 is a second difference, and the first difference is equal to the second difference. The second main spacer 102 and the second auxiliary spacer 104 are both located in the non-display area 120, while the first main spacer 101 and the first auxiliary spacer 103 are both located in the display area 110. By making the first difference equal to the second difference, the height difference between the spacers in the display area 110 and the non-display area 120 is ensured to be equal. In this way, whether the sealant 30 is superimposed on the second main spacer 102 or the second auxiliary spacer 104, the height change of the non-display area 120 and the display area 110 can be made consistent after the sealant 30 is superimposed.

[0063] In one embodiment of the present application, one side of the non-display area 120 extends toward the display area 110 to form an embedded area 121, and the embedded area 121 also belongs to the non-display area 120. The embedded area 121 is a part of the non-display area 120, that is, the non-display area 120 occupies a part of the position of the display area 110. For example, the display screen can use the embedded area 121 to form a water drop screen or a notch screen. The position corresponding to the embedded area 121 can be used to set some electronic devices, such as cameras. In this regard, the second main spacer 102 and the second auxiliary spacer 104 are both set in the embedded area 121 to further balance the height difference between the embedded area 121 and the display area 110.

[0064] The area of ​​the embedded area 121 is S1, and the area of ​​the display area 110 is S2, then the following condition is satisfied: 5‰ ≤ S1 / S2 ≤ 20‰. It can be seen from this that the area of ​​the embedded area 121 is usually not large, and the ratio of the area of ​​the display area 110 is generally between 5 / 1000 and 20 / 1000. Taking a mobile phone as an example, the embedded area 121 is usually located at the upper end of the mobile phone, which can be used to set the earpiece or front camera, etc. The earpiece or front camera is relatively small in size and can meet the usage requirements within this ratio range. Moreover, it can be further seen from the ratio range that the area of ​​the embedded area 121 is relatively small and generally does not interfere with the normal display of the screen in the display area 110.

[0065] In addition, the ratio range may be 5‰≤S1 / S2, or S1 / S2≤20‰, etc. Specific numerical ratios may be 5‰, 6‰, 7‰, 8‰, 9‰, 10‰, 11‰, 12‰, 13‰, 14‰, 15‰, 16‰, 17‰, 18‰, 19‰, or 20‰.

[0066] In one embodiment of the present application, the opposing substrate 10 includes a transparent substrate 100 and a black matrix layer 130. The black matrix layer 130 is arranged on the surface of the transparent substrate 100. The black matrix layer 130 includes a plurality of blocking blocks 131 arranged in a matrix. The first main spacer 101 and the second main spacer 102 are respectively arranged under a blocking block 131; the orthographic projection area of ​​the blocking block 131 on the transparent substrate 100 is M1, and the orthographic projection area of ​​the first main spacer 101 or the second main spacer 102 on the transparent substrate 100 is M2, then: M2≤M1 is satisfied.

[0067] The opposing substrate 10 also includes a color filter layer 140, which is arranged between each shielding block 131. Light passing through the color filter layer 140 can present different color displays. For example, the color filter layer 140 includes three colors: red, green, and blue. One color corresponds to the opening area of ​​a display sub-pixel, and the color filter layer 140 of the three colors constitutes a display pixel. A shielding block 131 is set between the color filter layer 140 of each color to prevent light crosstalk. The first main spacer 101 and the second main spacer 102 are respectively arranged corresponding to the shielding block 131. For example, the first main spacer 101 and the second main spacer 102 are both arranged below the shielding block 131. The second main spacer 102 is arranged in the non-opening area of ​​the pixel, making full use of the setting of the shielding block 131 to reduce the absorption of light by the second main spacer 102, thereby avoiding affecting the picture display.

[0068] Similarly, the first auxiliary spacer 103 and the second auxiliary spacer 104 are also arranged below the shielding block 131, which can also reduce the blocking and absorption of light and avoid affecting the picture display.

[0069] Furthermore, the projections of the first subspacer 103 and the second subspacer 104 on the transparent substrate 100 are also located within the projection area of ​​the blocking block 131 and do not exceed the projection range of the blocking block 131, further reducing the situation where the second subspacer 104 extends into the pixel opening area.

[0070] For example, the black matrix layer 130 is distributed in a grid pattern on the surface of the transparent substrate 100 , and the main spacers or the auxiliary spacers can be disposed at the intersections of the grids.

[0071] See Figure 4 and Figure 5 As shown, in one embodiment of the present application, a blocking block 131 divides the transparent substrate 100 into at least adjacent red, green, and blue sub-pixel regions within the display area 110. The color compensation structure further includes a light control layer 150 and an electrode layer 160. The light transmittance of the light control layer 150 is controlled by turning the electrode layer 160 on or off, thereby adjusting the transmittance of red, green, and blue light.

[0072] Because height differences are common near the sealant, the light control layer 150 is positioned close to the sealant. The light control layer 150 is disposed on the light-emitting surface of the opposing substrate 10 or the light-incoming surface of the array substrate 20. In other words, there are at least two possible locations for the light control layer 150: one is to place the light control layer 150 on the upper surface of the display panel, and the other is to place it on the lower surface of the display panel. When placed on the lower surface, the light control layer 150 is located between the display panel and the backlight.

[0073] The light control layer 150 includes a first control layer 151, a second control layer 152, and a third control layer 153. The first control layer 151 is positioned directly opposite the red sub-pixel region, the second control layer 152 is positioned directly opposite the green sub-pixel region, and the third control layer 153 is positioned directly opposite the blue sub-pixel region. For example, if the light control layer 150 is positioned on the lower surface of the display panel, light from the backlight panel first passes through the first control layer 151 before being emitted to the red sub-pixel region. Therefore, light emitted to the green sub-pixel region first passes through the second control layer 152, and light emitted to the blue sub-pixel region first passes through the third control layer 153.

[0074] The electrode layer 160 includes a first electrode layer 161, a second electrode layer 162 and a third electrode layer 163. The first electrode layer 161 corresponds to the first control layer 151, the second electrode layer 162 corresponds to the second control layer 152, and the third electrode layer 163 corresponds to the third control layer 153. Power is applied to the first electrode layer 161, the second electrode layer 162 and the third electrode layer 163 respectively to control the amount of light transmitting through the first control layer 151, the second control layer 152 and the third control layer 153.

[0075] For example, if the display panel's color is yellowish, controlling the power supply to the first electrode layer 161 and the second electrode layer 162 can reduce the red light in the red sub-pixel area and the green light in the green sub-pixel area, thereby improving the yellowish color problem. Alternatively, controlling the power supply to the third electrode layer 163 can increase the blue light in the blue sub-pixel area, thereby also improving the yellowish color problem. Alternatively, the reduction of light passing through can be controlled by de-energizing the electrode layers.

[0076] The color compensation structure also includes a common electrode layer 170. The common electrode layer 170 is entirely laid on the surface of the light control layer 150, and the common electrode layer 170 and the electrode layer 160 are disposed on opposite sides of the light control layer 150. When power is applied, an electric field is formed between the common electrode layer 170 and the electrode layer 160, with the direction of the electric field being perpendicular to the surface of the light control layer 150.

[0077] In one embodiment of the present application, the light control layer 150 is electronic paper. The first control layer 151 includes red ink, the second control layer 152 includes green ink, and the third control layer 153 includes blue ink. The electronic paper is provided with charged electronic inks. The red, green, and blue inks are charged and can move under the influence of an electric field. The light control layer 150 also includes pixel walls, which are provided between the red, green, and blue inks to separate them and prevent them from intermingling.

[0078] For example, when adjusting the color to a yellowish tint by increasing the proportion of blue light, the power supply to the first electrode layer 161 and the second electrode layer 162 can be stopped. In this way, the red ink and the green ink are spread out flatly. The light passes through the red ink to display red, and passes through the red sub-pixel area, which is provided with a red film layer, and the light remains red. Similarly, the light passes through the green ink to display green, and passes through the green sub-pixel area, which is provided with a green film layer, and the light remains green. At the same time, power is supplied to the third electrode layer 163. Driven by the voltage, the blue ink shrinks and gathers to one side. The light from the backlight panel is transmitted smoothly, the light is basically unobstructed, and there is no process of converting white light into blue light, resulting in less loss. In this way, the amount of light directed to the blue film layer is greater, thereby increasing the proportion of blue light.

[0079] The extent of blue ink shrinkage is determined by the drive voltage. When the applied drive voltage is below the threshold voltage, the blue ink shrinks less. Conversely, when the applied drive voltage is above the threshold voltage, the higher the voltage, the greater the blue ink shrinks. This shrinkage increases the transmittance of the blue pixel, which in turn increases brightness. This increases the proportion of blue light in the overall red, green, and blue light, thereby improving the yellowing of the display. In other words, the proportion of blue light can be further adjusted by adjusting the drive voltage.

[0080] The color compensation structure also includes a hydrophobic layer 180, which is disposed between the light control layer 150 and the electrode layer 160. Ink is spread flat on the hydrophobic layer 180, which is lipophilic and hydrophobic. When no voltage is applied, the ink lies flat on the surface of the hydrophobic layer 180. When voltage is applied, the ink is pushed aside.

[0081] In one embodiment of the present application, the light control layer 150 is an electrochromic layer. The electrochromic layer is a phenomenon in which the optical properties of the material (reflectivity, transmittance, absorptivity, etc.) undergo stable and reversible color changes under the action of an external electric field, which appears as a reversible change in color and transparency.

[0082] The first control layer 151 is an electrochromic red layer, the second control layer 152 is an electrochromic green layer, and the third control layer 153 is an electrochromic blue layer. In this application, the electrochromic layer is in a transparent state under normal circumstances, and the color changes after power is applied.

[0083] For example, to adjust the yellowish color by reducing the ratio of red and green light, power can be supplied to the first electrode layer 161 and the second electrode layer 162, respectively. An electric field is formed between the first electrode layer 161 and the common electrode layer 170. Under the action of the electric field, the electrochromic red layer changes from a transparent state to a red state. After the white light from the backlight passes through the electrochromic red layer, some of the light is absorbed or filtered, forming red light. This red light then travels to the red film layer, reducing the proportion of red light compared to the transparent state. Similarly, an electric field is formed between the second electrode layer 162 and the common electrode layer 170. Under the action of the electric field, the electrochromic green layer changes from a transparent state to a green state. After the white light from the backlight passes through the electrochromic green layer, some of the light is absorbed or filtered, forming green light. This green light then travels to the green film layer, reducing the proportion of green light compared to the transparent state. When the third electrode layer 163 is de-energized, the corresponding electrochromic blue layer remains transparent, and the intensity of the blue light remains unchanged. As a result, the proportions of red light and green light decrease, while the proportion of blue light increases.

[0084] In the present application, a transparent light sensor 190 may also be provided on the light-emitting surface of the display panel. Each sub-pixel region may be provided with a transparent light sensor 190 on the light-emitting surface. The transparent light sensor 190 detects the amount of light emitted from the corresponding sub-pixel region. The detection result is transmitted to the control chip, which determines whether the brightness ratio of each sub-pixel region is equal to the set value. If not, the electronic paper or electrochromic layer is activated to adjust the brightness of the sub-pixel region at the corresponding position. If they are equal, the electronic paper or electrochromic layer is deactivated.

[0085] As can be seen from the above, the technical solution of the present application can adjust not only the yellowish color of the display panel but also the bluish color or other color display deviations through the provision of the light control layer 150 .

[0086] The display panel can be used in a liquid crystal display and may further include a liquid crystal layer disposed between the counter substrate 10 and the array substrate 20. The sealant 30 can seal the liquid crystal layer and also bond the counter substrate 10 and the array substrate 20 together.

[0087] As can be seen from the above, when the display panel of this embodiment is provided with the sealant 30, the sealant 30 is disposed in the embedded area 121, generally along the boundary between the embedded area 121 and the display area 110. By lowering the height of the second main spacer 102, the height of the second main spacer 102 after being superimposed with the sealant 30 is less than that of the first main spacer 101, or the height of the second main spacer 102 after being superimposed with the sealant 30 is equal to that of the first main spacer 101. This ensures that the thickness between the opposing substrate 10 and the array substrate 20 at the display area 110 and the embedded area 121 is substantially equal, thereby reducing the yellowish color of the sealant 30 caused by uneven height.

[0088] It should be noted that the area within a certain range on both sides of the frame glue 30 belongs to the embedded area 121. The frame glue 30 has a certain width, and the distance between the bottom edge of the frame glue 30 and the display area 110 is generally between 0.2-0.6mm, which can be 0.2mm, 0.3mm, 0.4mm, 0.5mm or 0.6mm. The distance between the top edge of the frame glue 30 and the display area 110 is generally 0.7mm, 0.8mm, 0.9mm, 1.0mm or 1.1mm. The distance between the upper edge of the opposing substrate 10 and the lower edge of the embedded area 121 can be 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5.0mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm or 5.8mm.

[0089] In one respect, reference Figure 3 , the array substrate 20 includes a thin film transistor 210, and the second main spacer 102 is arranged corresponding to the thin film transistor 210; each liquid crystal pixel on the liquid crystal display is driven by the thin film transistor 210 integrated behind the pixel, and the thin film transistor 210 has advantages such as high responsiveness. The thin film transistor 210 includes multiple functional layers, such as a gate layer, an active layer, a source and drain electrode layer, etc. Therefore, at the position of the thin film transistor 210, the distance between the opposing substrate 10 and the array substrate 20 is smaller. In this embodiment, the thin film transistor 210 is used as a control switch, and setting the main spacer corresponding to the thin film transistor 210 can also reduce the interference of the thin film transistor 210 on the transmissive array substrate 20 and the opposing substrate 10.

[0090] The frame glue 30 includes a glue layer 310 and supporting particles 320. The glue layer 310 is arranged between the opposing substrate 10 and the array substrate 20, and the supporting particles 320 are arranged in the glue layer 310. The supporting particles 320 can be silicon particles. The supporting particles 320 are doped in the glue layer 310 and can support the strength of the frame glue 30. In this embodiment, the supporting particles 320 are deformed under pressure, but the size of the deformation is limited, that is, the frame glue 30 is difficult to be infinitely compressed. As a result, in the embedded area 121, the position of the spacer through which the frame glue 30 passes is higher than the position of the spacer in the display area 110. As a result, the height of the second main spacer 102 is reduced so that after the diameter of the supporting particles 320 in the frame glue 30 is superimposed, it is equal to or less than the height of the first main spacer 101.

[0091] As can be seen, in this embodiment, the height difference between the first main spacer 101 and the second main spacer 102 is the diameter of the support particle 320 after compression and deformation. Similarly, the height difference between the first auxiliary spacer 103 and the second auxiliary spacer 104 is also the diameter of the support particle 320 after compression and deformation. Generally, the height difference refers to the diameter of a single support particle 320.

[0092] See Figure 6 As shown, the present application also provides a manufacturing method, which is used to manufacture the opposing substrate 10 as described above, and the manufacturing method includes:

[0093] Step S10 involves depositing a spacer material layer on the surface of a transparent substrate 100. The transparent substrate 100 is typically made of a transparent material such as glass or plastic. The spacer material layer is coated on the upper surface of the transparent substrate 100. The spacer material is a photoreactive material with a certain degree of fluidity, known as a photoresist. The photoresist can be categorized as either positive or negative photoresist depending on its light-reflecting mechanism.

[0094] In step S20, a photomask 40 is placed on top of the transparent substrate 100 and covers the spacer material layer. The photomask 40 is provided with a first light-transmitting area T1 and a second light-transmitting area T2. The transmittance of the first light-transmitting area T1 is greater than the transmittance of the second light-transmitting area T2. The more light is transmitted, the better the fixing effect of the spacer material layer.

[0095] In step S30, curing light 50 is applied to the photomask 40. The curing light 50 passes through the first light-transmitting area T1 and the second light-transmitting area T2, curing the spacer material layer corresponding to the first light-transmitting area T1 to form the first main spacer 101, and curing the spacer material layer corresponding to the second light-transmitting area T2 to form the second main spacer 102. The spacer material layer is exposed to light. After being irradiated by the curing light 50, the spacer material layer at the corresponding position is cured, thereby forming the first main spacer 101 and the second main spacer 102.

[0096] The curing light 50 is usually ultraviolet light, which can cure the spacer material layer. After curing, baking can be performed to further fix the shapes of the first main spacer 101 and the second main spacer 102.

[0097] In addition, the first subspacer 103 and the second subspacer 104 can also be simultaneously manufactured using the same photomask 40. For example, a third light-transmitting region T3 and a fourth light-transmitting region T4 are further provided on the photomask 40. The transmittance of the third light-transmitting region T3 is greater than the transmittance of the fourth light-transmitting region T4, and the transmittance of the third light-transmitting region T3 is less than the transmittance of the second light-transmitting region T2. ​​The first light-transmitting region T1, the second light-transmitting region T2, the third light-transmitting region T3, and the fourth light-transmitting region T4 are arranged in an alternating pattern. The third light-transmitting region T3 is used to form the first subspacer 103, and the fourth light-transmitting region T4 is used to form the second subspacer 104.

[0098] The first and third light-transmitting regions T1 and T3 are provided in the display area 110 of the counter substrate 10, while the second and fourth light-transmitting regions T2 and T4 are provided in the embedded area 121. The difference in light transmittance between the first and third light-transmitting regions T1 and T3 is equal to the difference between the second and fourth light-transmitting regions T2 and T4. This ensures that the height difference between the first main spacer 101 and the first sub-spacer 103 is equal to the height difference between the second main spacer 102 and the second sub-spacer 104.

[0099] It's important to note that the transmittance difference between the first and second light-transmitting regions T1 and T2 can be adjusted, specifically based on the size and thickness of the sealant 30. More specifically, the sealant 30 includes support particles 320. These particles have limited deformation upon compression and cannot be infinitely compressed. Therefore, the transmittance is typically adjusted based on the diameter of the compressed support particles 320 within the sealant 30.

[0100] For example, see again Figure 2 As shown, a schematic diagram of the structure of the visible light mask 40. For example, in the display area, the transmittance of the mask 40 is 100%, that is, the transmittance of the first light-transmitting area T1 is 100%. If the height difference between the first main spacer 101 and the first auxiliary spacer 103 is Aum, for example, by conversion, it is obtained that the transmittance of the third light-transmitting area T3 is equal to 14%, and the difference between the two is 86%. In order to ensure that the height difference between the display area and the embedded area is consistent, the height difference between the second main spacer 102 and the second auxiliary spacer 104 is also Aum, and the transmittance of the second light-transmitting area T2 and the fourth light-transmitting area T4 is also set to a difference of 86%. This ensures that the height of the main spacer and the auxiliary spacer at the water droplets and bangs is Aum in the embedded area and the display area. A in Aum does not limit the specific value and can be converted into transmittance according to the specific value.

[0101] In addition, if the diameter of the supporting particles 320 after compression is defined as Bum, it is calculated that the height difference between the first main spacer 101 and the second main spacer 102 is also Bum. Similarly, the height difference between the first auxiliary spacer 103 and the second auxiliary spacer 104 is also Bum. By conversion, it is found that the transmittance of the first light-transmitting area T1 and the second light-transmitting area T2 differ by 5%. It is calculated that the transmittance of the second light-transmitting area T2 is 95%. The transmittance of the fourth light-transmitting area T4 is 9%. It is converted to the transmittance of the first light-transmitting area T1, the second light-transmitting area T2, the third light-transmitting area T3 and the fourth light-transmitting area T4, based on which the design of the mask is completed. The B in Bum is not limited to a specific value. It can be converted based on the specific value represented by B to obtain the transmittance.

[0102] Using a single photomask to set four different spacer heights improves process efficiency and simplifies the manufacturing process. This ensures that the height and thickness of the first main spacer 101 and the first auxiliary spacer 103 are consistent with the height and thickness of the second main spacer 102 and the second auxiliary spacer 104 after the sealant is applied, thus improving the yellowing problem caused by height differences in the water droplets and fringe.

[0103] Example 4

[0104] The present application also provides a display device, comprising a backlight source and a display panel as described above, wherein the backlight source is disposed on a side of the array substrate 20 facing away from the opposing substrate 10. The backlight source is used to provide backlight to the display panel to ensure normal display of the display panel.

[0105] A display area and an embedded area are set on the display panel of the display device, and an earpiece or a camera can be set in the embedded area. In addition, by lowering the height of the second main spacer 102, the second main spacer 102 can be substantially equal to the height of the first main spacer 101 after the frame glue 30 is superimposed. This reduces the situation where the height of the frame glue 30 after superimposing the second main spacer 102 is too high. By making the height near the frame glue 30 substantially equal to the height of the display area 110, the wavelength of light transmitted by the pixel opening area is reduced to yellow, thereby reducing the yellowing of the pixel opening area near the frame glue 30.

[0106] In this embodiment, the display device may be a mobile terminal, which includes a housing and a display panel as described above. The housing encloses a protective cavity, and the display panel is disposed within the protective cavity. A mobile terminal is also known as a mobile communication terminal and may be a mobile phone, tablet computer, wristband, or glasses. The housing is used to protect the display panel and may partially enclose the display panel.

[0107] The specific implementation and beneficial effects of the display device refer to the above content of the display panel and will not be repeated here.

[0108] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed herein.

[0109] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A display panel, characterized in that: The display panel includes an opposing substrate and an array substrate arranged in a cell-to-cell manner, the display panel having a display area and a non-display area surrounding the display area, and further includes: a frame glue, the frame glue being arranged along the display area and sealed between the counter substrate and the array substrate; a color compensation structure for balancing the transmittance of red light, green light, and blue light to improve the yellowish color of the display panel; Wherein, the color compensation structure includes: a first main spacer, the first main spacer being disposed in the display area; The second main spacer is arranged in the non-display area, the second main spacer is used to overlap with the frame glue, and the overlapping height of the second main spacer and the frame glue is less than or equal to the height of the first main spacer.

2. The display panel according to claim 1, wherein: The color compensation structure further includes: a first auxiliary spacer, the first auxiliary spacer being disposed in the display area; a second auxiliary spacer, the second auxiliary spacer being disposed in the non-display area, the first main spacer having a height greater than that of the first auxiliary spacer, and the second main spacer having a height greater than that of the second auxiliary spacer; The second auxiliary spacer is used to overlap with the sealant, and a overlapping height of the second auxiliary spacer and the sealant is less than or equal to a height of the first auxiliary spacer.

3. The display panel according to claim 2, wherein: A height difference between the first main spacer and the first auxiliary spacer is a first difference; A height difference between the second main spacer and the second auxiliary spacer is a second difference, and the first difference is equal to the second difference.

4. The display panel according to claim 2, wherein: The non-display area extends toward the display area to form an embedded area, the second main spacer and the second auxiliary spacer are arranged in the embedded area, the area of ​​the embedded area is S1, the area of ​​the display area is S2, and then: 5‰≤S1 / S2≤20‰ is satisfied.

5. The display panel according to claim 1, wherein: The counter substrate includes a transparent substrate and a black matrix layer, wherein the black matrix layer is disposed on a surface of the transparent substrate, the black matrix layer includes a plurality of shielding blocks arranged in a matrix, and the first main spacer and the second main spacer are respectively disposed under one of the shielding blocks; The orthographic projection area of ​​the blocking block on the transparent substrate is M1, and the orthographic projection area of ​​the first main spacer or the second main spacer on the transparent substrate is M2, then the following is satisfied: M2≤M1.

6. The display panel according to claim 5, wherein: The blocking block divides the transparent substrate into at least adjacent red sub-pixel areas, green sub-pixel areas, and blue sub-pixel areas within the display area; The color compensation structure further includes: a light control layer, the light control layer being close to the sealant and disposed on the light-emitting surface of the opposing substrate or the light-incoming surface of the array substrate, the light control layer comprising a first control layer, a second control layer, and a third control layer, the first control layer being disposed opposite the red sub-pixel region, the second control layer being disposed opposite the green sub-pixel region, and the third control layer being disposed opposite the blue sub-pixel region; an electrode layer, the electrode layer comprising a first electrode layer, a second electrode layer, and a third electrode layer, the first electrode layer corresponding to the first control layer, the second electrode layer corresponding to the second control layer, and the third electrode layer corresponding to the third control layer, wherein power is applied to the first electrode layer, the second electrode layer, and the third electrode layer, respectively, to control the amount of light transmitted through the first control layer, the second control layer, and the third control layer; A common electrode layer is entirely laid on the surface of the light control layer, and the common electrode layer and the electrode layer are respectively arranged on two opposite sides of the light control layer.

7. The display panel according to claim 6, wherein: The light control layer is electronic paper, the first control layer includes red ink, the second control layer includes green ink, and the third control layer includes blue ink; The color compensation structure further includes a hydrophobic layer, and the hydrophobic layer is arranged between the light control layer and the electrode layer.

8. The display panel according to claim 6, wherein: The light control layer is an electrochromic layer, the first control layer is an electrochromic red layer, the second control layer is an electrochromic green layer, and the third control layer is an electrochromic blue layer.

9. A display device, characterized in that: The display device includes a backlight source and a display panel according to any one of claims 1 to 8, wherein the backlight source is disposed on a side of the array substrate facing away from the counter substrate.

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