Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises an opposite substrate and an array substrate which are arranged in a box-to-box mode, the display panel is provided with a display area and a non-display area surrounding the display area, the display panel further comprises frame glue and a color compensation structure, and the frame glue is arranged along the display area and is sealed between the opposite substrate and the array substrate; the color compensation structure is arranged on the frame glue or close to the frame glue, and the color compensation structure is used for balancing the transmittance of red light, green light and blue light so as to improve the yellow display of the display panel. According to the technical scheme, the situation that the position near the frame glue becomes yellow can be reduced.

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] In order to reduce costs, display panel manufacturers design display screens in various forms, such as the water drop type and notch type used in mobile phone products. When making this type of display screen, the water drop type or notch type frame glue will be pressed into the pixel area, causing the light to appear yellow near the frame glue when passing through the pixel opening near the frame glue. Summary of the invention

[0003] The purpose of the present application is to provide a display panel and a display device, which 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 the practice of the present application.

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

[0006] A frame glue is 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, and 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, wherein the first auxiliary spacer is disposed in the display area;

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

[0014] The second auxiliary spacer is used to overlap with the frame glue, and the overlapping height of the second auxiliary spacer and the frame glue is less than or equal to the 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, the black matrix layer is disposed on the 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;

[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: M2≤M1.

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

[0021] The color compensation structure further includes:

[0022] A light control layer, the light control layer is close to the frame glue, the light control layer is arranged on the light exit surface of the opposing substrate or the light entrance surface of the array substrate, the light control layer includes a first control layer, a second control layer and a third control layer, the first control layer is arranged opposite to the red sub-pixel area, the second control layer is arranged opposite to the green sub-pixel area, and the third control layer is arranged opposite to the blue sub-pixel area;

[0023] An electrode layer, wherein the electrode layer includes a first electrode layer, a second electrode layer and a third electrode layer, wherein the first electrode layer corresponds to the first control layer, the second electrode layer corresponds to the second control layer, and the third electrode layer corresponds to the third control layer, and the first electrode layer, the second electrode layer and the third electrode layer are energized 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 problem, 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, the light transmittance of red light, green light and blue light in the pixel opening area is balanced through a color compensation structure. 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 exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings herein are incorporated into the specification 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 for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[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 present application when manufacturing a display panel is shown schematically.

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

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

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

[0037] Figure 6 The schematic diagram of the process step structure 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 photoreceptor;

[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 a variety of 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 more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0043] Embodiment 1

[0044] See also Figures 1 to 3As shown, a display panel described in the present application includes an opposing substrate 10 and an array substrate 20 arranged in a box, the display panel has a display area 110 and a non-display area 120 surrounding the display area 110, and the display panel also includes: a frame glue 30 and a color compensation structure. The display panel of the present application can be a liquid crystal panel, and 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 respectively, and the light intensity or the amount of light of each sub-pixel is adjusted so that the pixel unit presents different colors.

[0045] The frame glue 30 is arranged along the display area and sealed between the opposing substrate 10 and the array substrate 30; the frame glue 30 generally surrounds the display area 110. The frame glue 30 is sealed to reduce the entry of water vapor into the display panel and avoid adverse effects on various TFT (Thin Film Transistor) switches.

[0046] The color compensation structure is arranged on the frame glue 30 or near the frame glue 30. The color compensation structure is used to balance the transmittance of red light, green light and blue light to improve the yellowish display of the display panel. Generally, the yellowish display of the display panel is caused by the small amount of blue light, or the large amount of red light and yellow light. The color compensation structure can reduce the amount of red light and yellow light, and can also increase the amount of blue light, thereby reducing the yellowish color of the display panel.

[0047] In this embodiment, the light transmittance of red light, green light and blue light in the pixel opening area is balanced through a color compensation structure. 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, so that a display screen is formed in the display area 110. The non-display area 120 is generally opaque and is used to lay control components and circuits, such as setting 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 type or bangs type 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. The spacer is also called PS (photo spacer), which is mainly used to maintain the stability of the structure and supports the opposing substrate 10 and the array substrate 20 to keep a certain distance between the two.

[0052] The technical solution of the present application can be applied in liquid crystal display. In this way, the role of the spacer is to support the opposing substrate 10 and the array substrate 20 so that a liquid crystal layer can be accommodated therebetween to prevent the liquid crystal layer from being squeezed.

[0053] Specifically, the first main spacer 101 is disposed in the display area 110 ; a plurality of first main spacers 101 may be provided, and they may be laid out according to the specifications required for the arrangement, and the first main spacers 101 are 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 the second main spacer 102 is used to overlap with the frame glue 30, and the overlapping height of the second main spacer 102 and the frame glue 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, and the second main spacers 102 are used to support the structure of the non-display area 120.

[0055] When the frame glue 30 is set, 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 to the position of the frame glue 30 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 height between the opposing substrate 10 and the array substrate 20 at the display area 110 position and the non-display area 120 position is basically equal, reducing the yellowing of the frame glue 30 position 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 to the height of the first main spacer 101 after the frame glue 30 is superimposed. Reduce the situation where the frame glue 30 is too high after superimposing the second main spacer 102. Ensure that the height near the frame glue 30 is substantially equal to the height of the display area 110, and reduce the height difference between the pixel opening area and the superimposed position of the frame glue 30. Reduce the overall thickness of the frame glue 30, reduce the wavelength of light transmitted by the pixel opening area to shift to yellow, that is, reduce the number of red and green light, increase the number of blue light, and reduce 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 between 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 avoid the liquid crystal layer from being crushed and damaged. 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, two types of main spacers (Main PS) are provided, namely, a first main spacer 101 and a second main spacer 102 , and two types of sub-spacers (Sub PS) are provided, 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, and the auxiliary spacers can further improve the supporting strength between the counter substrate 10 and the array substrate 20 .

[0060] For example, after the main spacer loses its supporting function or the supporting function of the main spacer is reduced, in order to avoid the yellowing of the frame glue 30, the height of the second auxiliary spacer 104 after superimposing the frame glue 30 is equal to the height of the first auxiliary spacer 103, or the height of the second auxiliary spacer 104 after superimposing the frame glue 30 is less than the height of the first auxiliary spacer 103. This further ensures that after the main spacer fails, the yellowing of the frame glue 30 can still be reduced on the basis of maintaining the box thickness height of the opposing substrate 10 and the array substrate 20.

[0061] In one embodiment of the present application, in order to ensure that the first main spacer 101 can play a supporting role, the height of the first main spacer 101 is greater than the height 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, and the height difference between the second main spacer 102 and the second auxiliary spacer 104 is the 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 arranged in the non-display area 120, and the first main spacer 101 and the first auxiliary spacer 103 are both arranged in the display area 110. By making the first difference equal to the second difference, it is ensured that the height difference of the spacers in the display area 110 and the non-display area 120 is equal. In this way, whether the frame glue 30 is superimposed on the second main spacer 102 or the second auxiliary spacer 104, after the frame glue 30 is superimposed, the height changes of the non-display area 120 and the display area 110 can be made consistent.

[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 display area 110. For example, the display screen can use the embedded area 121 to form a water drop screen or a bangs 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, which satisfies: 5‰≤S1 / S2≤20‰. It can be seen 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 and 20 thousandths. Taking a mobile phone as an example, the embedded area 121 is usually located at the upper end of the mobile phone, and this position can be used to set a handset or a front camera, etc. The volume of the handset or the front camera is relatively small, and can meet the use 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. The specific numerical ratio 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 disposed 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 disposed 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 it satisfies: M2≤M1.

[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 layers 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 to avoid 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 auxiliary spacer 103 and the second auxiliary spacer 104 on the transparent substrate 100 are also located within the projection area of ​​the shielding block 131 and do not exceed the projection range of the shielding block 131, further reducing the situation where the second auxiliary spacer 104 extends to 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 also Figure 4 and Figure 5 As shown, in one embodiment of the present application, the shielding block 131 divides the transparent substrate 100 into at least adjacent red sub-pixel areas, green sub-pixel areas and blue sub-pixel areas in 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 on or off the electrode layer 160, thereby adjusting the transmittance of red light, green light and blue light.

[0072] Since height differences are likely to occur near the frame glue, the light control layer 150 is close to the frame glue, and the light control layer 150 is disposed on the light emitting surface of the opposing substrate 10 or the light receiving surface of the array substrate 20. In other words, there are at least two situations for the setting position of the light control layer 150. One is that the light control layer 150 is disposed on the upper surface of the display panel, and the other is that the light control layer 150 is disposed on the lower surface of the display panel. When the light control layer 150 is disposed on the lower surface, the light control layer 150 is located between the display panel and the backlight panel.

[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 arranged opposite to the red sub-pixel area, the second control layer 152 is arranged opposite to the green sub-pixel area, and the third control layer 153 is arranged opposite to the blue sub-pixel area. For example, the light control layer 150 is arranged on the lower surface of the display panel, and the light from the backlight plate first passes through the first control layer 151 and then is emitted to the red sub-pixel area. It can be seen that the light emitted to the green sub-pixel area first passes through the second control layer 152, and the light emitted to the blue sub-pixel area 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. Electricity 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 color of the display panel is yellowish, the red light in the red sub-pixel area and the green light in the green sub-pixel area can be reduced by controlling the power supply of the first electrode layer 161 and the second electrode layer 162, thereby improving the problem of the yellowish color of the display panel. The blue light in the blue sub-pixel area can also be increased by controlling the power supply of the third electrode layer 163, thereby improving the problem of the yellowish color of the display panel. In addition, the reduction of light can also be controlled by disconnecting the power supply to the electrode layer.

[0076] The color compensation structure further includes a common electrode layer 170, which 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 two 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, and the direction of the electric field is 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 ink, and the red ink, green ink, and blue ink are charged and can move under the action of the electric field. The light control layer 150 also includes a pixel wall, which is provided between the red ink, the green ink, and the blue ink to separate them and prevent the inks from colluding.

[0078] For example, when the color is adjusted to be yellowish 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, so that the red ink and the green ink are spread out flat, and the light passes through the red ink to display red, and passes through the red sub-pixel area, the red sub-pixel area is provided with a red film layer, and the light is still red. Similarly, the light passes through the green ink to display green, and passes through the green sub-pixel area, the green sub-pixel area is provided with a green film layer, and the light is still green. At the same time, power is supplied to the third electrode layer 163, and the blue ink shrinks under the drive of the voltage and gathers to one side. The light of the backlight panel is transmitted smoothly, the light is basically unobstructed, and there is no process of converting white light into blue light, and the loss is small. In this way, the amount of light directed to the blue film layer is large, thereby increasing the proportion of blue light.

[0079] The degree of blue ink shrinkage is determined by the magnitude of the driving voltage. When the applied driving voltage is lower than the threshold voltage, the degree of blue ink shrinkage is relatively small. On the contrary, when the applied driving voltage is higher than the threshold voltage, the greater the voltage, the greater the degree of blue ink shrinkage. The blue ink shrinks, which increases the transmittance at the blue pixel, that is, the brightness increases, and the proportion of blue light in the overall red, green and blue light increases, thereby improving the yellowing problem of the display. In other words, the proportion of blue light can be further adjusted by the magnitude of the driving voltage.

[0080] The color compensation structure further includes a hydrophobic layer 180, which is disposed between the light control layer 150 and the electrode layer 160. The ink is spread on the hydrophobic layer 180, which is oleophilic and hydrophobic. When no voltage is applied, the ink is spread on the surface of the hydrophobic layer 180, and when a voltage is applied, the ink is squeezed 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 (reflectivity, transmittance, absorptivity, etc.) of the material 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 the present application, the electrochromic layer is in a transparent state under normal circumstances, and the color changes after power is turned on.

[0083] For example, when adjusting the color to be yellowish 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 of the backlight passes through the electrochromic red layer, part of the light is absorbed or understood as being filtered to form red light. The red light is then directed to the red film layer. Compared with the transparent state, the proportion of red light is reduced. Similarly, an electric field is also 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 of the backlight passes through the electrochromic green layer, part of the light is absorbed or understood as being filtered to form green light. The green light is then directed to the green film layer. Compared with the transparent state, the proportion of green light is also reduced. When the third electrode layer 163 is powered off, the corresponding electrochromic blue layer remains transparent, and the intensity of the blue light does not change. As a result, the proportion of red light and green light decreases, while the proportion of blue light increases.

[0084] In the present application, a transparent photo sensor 190 may be provided on the light-emitting surface of the display panel. A transparent photo sensor 190 may be provided on the light-emitting surface of each sub-pixel region, and the amount of light emitted from the corresponding sub-pixel region is detected by the transparent photo sensor 190. The detection result is transmitted to the control chip, and the control chip identifies whether the brightness ratio of each sub-pixel region is equal to the set value at this time. If not, the electronic paper or electrochromic layer is turned on to adjust the brightness of the sub-pixel region at the corresponding position. If they are equal, the electronic paper or electrochromic layer is not turned on.

[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 liquid crystal display, and the display panel can also include a liquid crystal layer, which is arranged between the counter substrate 10 and the array substrate 20. The frame glue 30 can seal the liquid crystal layer, and the frame glue 30 can also adhere 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 will be provided in the embedded area 121, and will generally be provided 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 smaller 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. In this way, the height of the box 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 yellowing of the color of the sealant 30 at the position due to uneven height.

[0088] It should be noted that the embedded area 121 is within a certain range on both sides of the frame glue 30. The frame glue 30 has a certain width, and the distance between the bottom 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 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 screen 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-drain electrode layer, and the like. 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 the main spacer is arranged corresponding to the thin film transistor 210, which 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, and the supporting particles 320 are doped in the glue layer 310 to support the strength of the frame glue 30. The supporting particles 320 are compressed and deformed in this embodiment, 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 spacer position through which the frame glue 30 passes is higher than the spacer position of the display area 110. Thereby, the height of the second main spacer 102 will be reduced so that it is equal to or less than the height of the first main spacer 101 after the diameter of the supporting particles 320 in the frame glue 30 is superimposed.

[0091] It can be seen that 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 being compressed and deformed. 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 being compressed and deformed. Generally, the height difference refers to the diameter of a support particle 320.

[0092] See also 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, a spacer material layer is disposed on the surface of the transparent substrate 100; the transparent substrate 100 is usually 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, and the spacer material is a photoreactive material having a certain fluidity, i.e., a so-called photoresist material, which can be divided into positive type and negative type photoresist according to its different light reaction mechanisms.

[0094] In step S20, the mask 40 is placed above the transparent substrate 100 and covers the spacer material layer. The mask 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 provided to the photomask 40. The curing light 50 passes through the first light-transmitting area T1 and the second light-transmitting area T2 respectively, and the spacer material layer corresponding to the first light-transmitting area T1 is cured to form the first main spacer 101, and the spacer material layer corresponding to the second light-transmitting area T2 is cured to form the second main spacer 102. The spacer material layer is exposed, and after being irradiated by the curing light 50, the spacer material layer at the corresponding position can be 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 sub-spacer 103 and the second sub-spacer 104 can also be manufactured simultaneously using the same mask 40. For example, a third light-transmitting area T3 and a fourth light-transmitting area T4 are also provided on the mask 40, and the transmittance of the third light-transmitting area T3 is greater than the transmittance of the fourth light-transmitting area T4, and at the same time, the transmittance of the third light-transmitting area T3 is less than the transmittance of the second light-transmitting area T2. 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 are arranged at intervals. The third light-transmitting area T3 is used to form the first sub-spacer 103, and the fourth light-transmitting area T4 is used to form the second sub-spacer 104.

[0098] The first light-transmitting area T1 and the third light-transmitting area T3 are arranged corresponding to the display area 110 of the counter substrate 10, and the second light-transmitting area T2 and the fourth light-transmitting area T4 are arranged corresponding to the embedded area 121. The light transmittance difference between the first light-transmitting area T1 and the third light-transmitting area T3 is equal to the difference between the second light-transmitting area T2 and the fourth light-transmitting area T4. Thus, the height difference between the first main spacer 101 and the first auxiliary spacer 103 is equal to the height difference between the second main spacer 102 and the second auxiliary spacer 104.

[0099] It should be noted that the difference in light transmittance between the first light-transmitting area T1 and the second light-transmitting area T2 can be adjusted, specifically, it can be adjusted according to the size and thickness of the sealant 30. More specifically, the sealant 30 is provided with support particles 320, and the support particles 320 have limited deformation after being compressed and cannot be infinitely compressed. Therefore, the size of the light transmittance is usually adjusted according to the diameter of the support particles 320 in the sealant 30 after being compressed.

[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 light 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, it is obtained through conversion 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 differ by 86%. Thereby, it is ensured 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 support particles 320 after being compressed 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 that 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 is large, and the design of the mask is completed based on this. B in Bum is not limited to a specific value, and the transmittance can be obtained by conversion based on the specific value represented by B.

[0102] Four spacers with different heights are set up through one photomask, which improves the efficiency of the process steps and simplifies the production process. The height of the first main spacer 101 and the first auxiliary spacer 103 is made uniform with the height and thickness of the second main spacer 102 and the second auxiliary spacer 104 after the sealant is applied, thereby improving the problem of yellowing of water drops and bangs caused by the existence of height difference.

[0103] Embodiment 4

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

[0105] A display area and an embedded area are set on the display panel of the display device, and a handset 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. Reduce the situation where the height of the frame glue 30 is too high after the second main spacer 102 is superimposed. Make the height near the frame glue 30 substantially equal to the height of the display area 110, reduce the wavelength of light transmitted by the pixel opening area to shift toward yellow, and thus reduce 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 in the protective cavity. The mobile terminal is also called a mobile communication terminal, and the mobile terminal may be a mobile phone, a tablet computer, a bracelet, or glasses, etc. The housing is used to protect the display panel, and the housing may half-wrap the display panel.

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

[0108] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application.

[0109] It should be understood that the present application is not limited to the precise structures that have been 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 box, the display panel has a display area and a non-display area surrounding the display area, and the display panel further includes: A frame glue is arranged along the display area and sealed between the counter substrate and the array substrate; 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.

2. The display panel according to claim 1, characterized in that: The color compensation structure comprises: 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, and 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.

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

4. The display panel according to claim 3, characterized in that: The 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.

5. The display panel according to claim 3, characterized in that: 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, then: 5‰≤S1 / S2≤20‰ is satisfied.

6. The display panel according to claim 2, characterized in that: The counter substrate comprises a transparent substrate and a black matrix layer, wherein the black matrix layer is arranged on the surface of the transparent substrate, the black matrix layer comprises a plurality of shielding blocks arranged in a matrix, and the first main spacer and the second main spacer are respectively arranged 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: M2≤M1.

7. The display panel according to claim 6, characterized in that: The shielding block divides the transparent substrate into at least adjacent red sub-pixel area, green sub-pixel area and blue sub-pixel area in the display area; The color compensation structure further includes: A light control layer, the light control layer is close to the frame glue, the light control layer is arranged on the light exit surface of the opposing substrate or the light entrance surface of the array substrate, the light control layer includes a first control layer, a second control layer and a third control layer, the first control layer is arranged opposite to the red sub-pixel area, the second control layer is arranged opposite to the green sub-pixel area, and the third control layer is arranged opposite to the blue sub-pixel area; An electrode layer, wherein the electrode layer includes a first electrode layer, a second electrode layer and a third electrode layer, wherein the first electrode layer corresponds to the first control layer, the second electrode layer corresponds to the second control layer, and the third electrode layer corresponds to the third control layer, and the first electrode layer, the second electrode layer and the third electrode layer are energized 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.

8. The display panel according to claim 7, characterized in that: 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.

9. The display panel according to claim 7, characterized in that: 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.

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

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