Display panel and display device

Abstract

The invention relates to the field of display, and particularly discloses a display panel and a display device.The display panel comprises a diaphragm layer, the diaphragm layer comprises a plurality of light processing structures, each light processing structure comprises a light processing assembly and a control assembly, and the control assembly is connected with the light processing assembly; the control assembly is used for applying a first electric field or a second electric field to the optical processing assembly; a color resistor is arranged above each light processing assembly, every two adjacent color resistors are arranged in a spaced mode, a blank space is arranged between every two adjacent color resistors, and the color resistors and the blank space adjacent to the color resistors form a display block. When the control assembly applies a first electric field to the light processing assembly, the light processing assembly reflects light irradiated to the position below the display block towards the position above the display block. When the control assembly applies the second electric field to the light processing assembly, the light processing assembly absorbs the light irradiated to the lower portion of the display block. In this way, the problem of light crosstalk between the adjacent color resistors is solved.

Description

Technical Field

[0001] The present application relates to the field of displays, and in particular, to a display panel and a display device. Background Art

[0002] Currently, the structure of the color filter layer and the e-paper module is an important way to achieve color e-paper display.

[0003] This structure usually increases the blank area around the color resist to improve the pixel display brightness. However, with the setting of the blank area, after some large-angle light rays are incident, they will be reflected to the adjacent color resist and then exit. At this time, the chromaticity will be affected after exiting, resulting in display color deviation. The larger the blank area, the more obvious the color deviation phenomenon.

[0004] Therefore, how to improve the display color deviation caused by the light crosstalk between adjacent color resists has become an urgent problem to be solved in this field. Summary of the Invention

[0005] The present application discloses a display panel and a display device, aiming to improve the light crosstalk problem between adjacent color resists.

[0006] An embodiment of the present application discloses a display panel, including a film layer. The film layer includes a plurality of light processing structures. Each light processing structure includes a light processing component and a control component. The control component is connected to the light processing component, and the control component is used to apply a first electric field or a second electric field to the light processing component. Above each light processing component, a color resist is respectively provided. Adjacent two color resists are spaced apart, and a blank area is provided between adjacent two color resists. The blank area is used to transmit visible light in the external environment. The color resist and the adjacent blank area form a display block. When the control component applies a first electric field to the light processing component, the light processing component reflects the light rays irradiated below the display block upward; when the control component applies a second electric field to the light processing component, the light processing component absorbs the light rays irradiated below the display block.

[0007] Optionally, the light processing component includes a concave structure and a plurality of first particles. The concave structure is made of a light-transmitting material. The concave structure includes a recessed portion that surrounds the space corresponding to the concave structure below the color resistor. The plurality of first particles are arranged along the edge of the recessed portion. The control component includes a first electrode and a second electrode. The first electrode and the second electrode are respectively disposed on opposite sides of the concave structure. The first electrode and the second electrode are configured to apply a first electric field or a second electric field to both ends of the first particles. When the first electrode and the second electrode apply the first electric field to the plurality of first particles, the plurality of first particles reflect the light irradiated below the display block upward toward the display block. When the first electrode and the second electrode apply the second electric field to the first particles, the first particles absorb the light irradiated below the display block.

[0008] Optionally, the first particles include electrophoretic particles. Each electrophoretic particle includes a first part and a second part. The first part is configured to reflect light, and the second part is configured to absorb light. When the electrophoretic particle is under the action of the first electric field, the first part faces the color resistor, and the second part faces away from the color resistor. When the electrophoretic particle is under the action of the second electric field, the second part faces the color resistor, and the first part faces away from the color resistor.

[0009] Optionally, the charge polarities of the first part and the second part are different. In the first electric field state, the polarities of the first electrode and the second electrode are the same as the charge polarity of the first part and opposite to the charge polarity of the second part. In the second electric field state, the polarities of the first electrode and the second electrode are the same as the charge polarity of the second part and opposite to the charge polarity of the first part.

[0010] Optionally, a plurality of the color resistors are located above the diaphragm layer, a black matrix is provided between adjacent two of the color resistors, and the blank area is located between the black matrix and the color resistor.

[0011] Optionally, the light processing component includes a concave structure, a light adjustment layer, and a plurality of first particles. The light adjustment layer is disposed below the concave structure. The concave structure includes a recessed portion that surrounds the space corresponding to the concave structure below the color resistor. The upper and lower surfaces of the recessed portion are total reflection surfaces, and the plurality of first particles are filled in the cavity surrounded by the recessed portion. The control component includes a first electrode, a second electrode, a third electrode, and a fourth electrode. The first electrode and the second electrode are respectively disposed on opposite sides of the concave structure. The first electrode and the second electrode are configured to apply a first electric field or a second electric field to both ends of the first particles. The third electrode is located on a side of the light adjustment layer close to the concave structure, and the fourth electrode is located on a side of the light adjustment layer away from the concave structure. The third electrode is a light-transmissive electrode. The third electrode and the fourth electrode apply a first electric field or a second electric field to the light adjustment layer. When the first electrode and the second electrode apply a first electric field to the plurality of first particles, the plurality of first particles transmit the light irradiated below the color resistor. When the first electrode and the second electrode apply a second electric field to the first particles, the first particles absorb the light irradiated below the color resistor. When the third electrode and the fourth electrode apply a first electric field to the light adjustment layer, the light adjustment layer reflects the light. When the third electrode and the fourth electrode apply a second electric field to the light adjustment layer, the light adjustment layer absorbs the light.

[0012] Optionally, the first particles include electrochromic particles. The electrochromic particles are in a light-transmissive state under the action of a first electric field and in a black state under the action of a second electric field.

[0013] Optionally, a plurality of electrophoretic particles are filled in the light adjustment layer. Each electrophoretic particle includes a first part and a second part. The first part is configured to reflect light, and the second part is configured to absorb light. When the electrophoretic particles are under the action of the first electric field, the first part faces the color resistor, and the second part faces away from the color resistor. When the electrophoretic particles are under the action of the second electric field, the second part faces the color resistor, and the first part faces away from the color resistor.

[0014] Optionally, the bottom of the recessed portion is a planar structure. The width of the recessed portion is X, the depth of the recessed portion is Y, and the two side walls of the recessed portion extend downward in a parabolic shape. The parabola satisfies the relationship: X 2 = 2AY; where A is a constant and A is greater than 0.

[0015] The embodiment of the present application also discloses a display device, including a housing. The display device further includes the above-mentioned display panel, and the display panel is disposed in the housing.

[0016] The present application improves the traditional display panel. By providing a plurality of light processing structures in the diaphragm layer, when visible light in the external environment irradiates the display panel, it will first irradiate the display block composed of the blank area and the color resistor, and then irradiate the light processing structure from the display block. When the control component of the light processing structure applies a first electric field to the light processing component, the light processing component reflects the light irradiating below the display block upward to the display block. On the one hand, the light below the display block will not irradiate to the area corresponding to the adjacent color resistor and be emitted by the adjacent color resistor, thereby reducing the light crosstalk between two adjacent color resistors and improving the problem of display color deviation. On the other hand, after the light is reflected above the display block, it can also be used to increase the display brightness. When the control component applies a second electric field to the light processing component, the light processing component absorbs the light irradiating below the display block, making the corresponding color resistor not emit light. In this way, it is possible to flexibly control the emission or non-emission of different color resistors according to the actual display requirements, forming different display color combinations, which is beneficial to improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings included are used to provide a further understanding of the embodiments of the present application, which form a part of the specification, and are used to illustrate the embodiments of the present application and, together with the text description, to explain the principles of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings: Figure 1 It is a schematic diagram of the light processing structure under the action of the first electric field in the first embodiment of the display panel of the present application; Figure 2 It is a schematic diagram of the light processing structure under the action of the second electric field in the first embodiment of the display panel of the present application; Figure 3 It is a schematic diagram of the light processing structure under the action of the first electric field in the second embodiment of the display panel of the present application; Figure 4 It is a schematic diagram of the light processing structure under the action of the second electric field in the second embodiment of the display panel of the present application; Figure 5 It is a schematic diagram of the third embodiment of the display panel of the present application; Figure 6 It is a schematic diagram of an embodiment of the display device of the present application.

[0018] Among them, 10 is a display device; 100 is a display panel; 200 is a housing; 120 is a film layer; 130 is a light processing structure; 131 is a light processing component; 132 is a concave structure; 133 is a recess; 134 is a first particle; 135 is an electrophoretic particle; 136 is a first part; 137 is a second part; 138 is an electrochromic particle; 140 is a control component; 141 is a first electrode; 142 is a second electrode; 143 is a third electrode; 144 is a fourth electrode; 150 is a color resistor; 160 is a black matrix; 170 is a blank area; 180 is a display block; 190 is a light adjustment layer. Detailed implementation manners

[0019] The present application will be described in detail below with reference to the accompanying drawings and optional embodiments. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0020] Figure 1 It is a schematic diagram of the light processing structure under the action of the first electric field in the first embodiment of the display panel of the present application; Figure 2 It is a schematic diagram of the light processing structure under the action of the second electric field in the first embodiment of the display panel of the present application; As Figure 1 and Figure 2 shown, the embodiment of the present application discloses a display panel 100, which includes a film layer 120. The film layer 120 includes a plurality of light processing structures 130. Each light processing structure 130 includes a light processing component 131 and a control component 140. The control component 140 is connected to the light processing component 131. The control component 140 is used to apply a first electric field or a second electric field to the light processing component 131; A color resistor 150 is disposed above each light processing component 131. Adjacent two color resistors 150 are spaced apart, and a blank area 170 is disposed between adjacent two color resistors 150. The blank area 170 is used to transmit visible light in the external environment. The color resistor 150 and its adjacent blank area 170 form a display block 180; When the control component 140 applies a first electric field to the light processing component 131, the light processing component 131 reflects the light irradiated below the display block 180 upward; When the control component 140 applies a second electric field to the light processing component 131, the light processing component 131 absorbs the light irradiated below the display block 180.

[0021] This application improves the traditional display panel 100. By arranging a plurality of light processing structures 130 in the diaphragm layer 120, when visible light in the external environment irradiates the display panel 100, it will first irradiate the display block 180 composed of the blank area 170 and the color resistor 150, and then irradiate from the display block 180 to the light processing structure 130; when the control component 140 of the light processing structure 130 applies a first electric field to the light processing component 131, the light processing component 131 reflects the light irradiated below the display block 180 upward above the display block 180. On the one hand, the light below the display block 180 will not irradiate the area corresponding to the adjacent color resistor 150 and be emitted by the adjacent color resistor 150, thereby reducing the light crosstalk between two adjacent color resistors 150 and improving the problem of display color deviation. On the other hand, after the light is reflected above the display block 180, it can be used to increase the display brightness; when the control component 140 applies a second electric field to the light processing component 131, the light processing component 131 absorbs the light irradiated below the display block 180; so that the corresponding color resistor 150 does not emit light, and thus it is possible to flexibly control whether different color resistors 150 emit light or not according to the actual display requirements, forming different display color combinations, which is beneficial to improving the display effect.

[0022] Specifically, the light processing component 131 includes a concave structure 132 and a plurality of first particles 134. The concave structure 132 is made of a light-transmitting material; the concave structure 132 includes a recessed part 133, and the recessed part 133 surrounds the space corresponding to the concave structure 132 below the color resistor 150; a plurality of first particles 134 are arranged along the edge of the recessed part 133; the control component 140 includes a first electrode 141 and a second electrode 142; the first electrode 141 and the second electrode 142 are respectively arranged on opposite sides of the concave structure 132; the first electrode 141 and the second electrode 142 are used to apply a first electric field or a second electric field to both ends of the first particles 134; when the first electrode 141 and the second electrode 142 apply a first electric field to the plurality of first particles 134, the plurality of first particles 134 reflect the light irradiated below the display block 180 upward above the display block 180; when the first electrode 141 and the second electrode 142 apply a second electric field to the first particles 134, the first particles 134 absorb the light irradiated below the display block 180.

[0023] In this embodiment, the overall base material of the concave structure 132 is made of a light-transmitting material, such as a glass material. The base material of the diaphragm layer 120 can also be made of glass. A plurality of concave structures 132 are encapsulated into the diaphragm layer 120 so that visible light in the external environment can pass through normally and irradiate onto the first particles 134. A plurality of first particles 134 can be formed by first opening a plurality of micropores on the side of the recess 133 away from the color resistor 150. The micropores can be formed by etching on the glass substrate. Then, a plurality of first particles 134 are injected into the micropores so that the plurality of first particles 134 are arranged along the extending direction of the recess 133. Since the recess 133 surrounds the space of the concave structure 132 corresponding to the color resistor 150, after the plurality of first particles 134 are arranged along the extending direction of the recess 133, a structure similar to "semi-surrounding" is formed in the space of the concave structure 132 corresponding to the color resistor 150, thereby separating the space below the diaphragm layer 120 corresponding to two adjacent color resistors 150. The first electrode 141 and the second electrode 142 are respectively on both sides of the concave structure 132, and different voltages are applied to both ends of the first particles 134 to form a first electric field or a second electric field.

[0024] When the first electrode 141 and the second electrode 142 apply a first electric field to the plurality of first particles 134, the plurality of first particles 134 reflect the light irradiated below the display block 180 upward. On the one hand, it can prevent the light below the display block 180 from irradiating to the area corresponding to the adjacent color resistor 150 and being emitted by the adjacent color resistor 150, thereby reducing the light crosstalk between two adjacent color resistors 150 and improving the problem of display color deviation. On the other hand, the light reflected above the display block 180 can be used to increase the display brightness.

[0025] When the first electrode 141 and the second electrode 142 apply a second electric field to the first particles 134, the first particles 134 absorb the light irradiated below the display block 180, making the corresponding color resistor 150 not emit light. In this way, it is possible to flexibly control whether different color resistors 150 emit light or not according to actual display requirements, forming different display color combinations, which is beneficial to improving the display effect.

[0026] That is, in the present application, each color resistor 150 and the blank areas 170 on both sides of each color resistor 150 form an integrated display block 180, and the concave structure 132 corresponding to the lower part of the display block 180 separates each display block 180. Different voltages are applied to both ends of the first particles 134 on the concave structure 132 through the control electrodes on both sides of the concave structure 132, so as to form a first electric field or a second electric field; when the display block 180 is in the display state, a first electric field is applied to the first particles 134 under the display block 180, so as to control the first particles 134 to reflect the visible light entering the lower part of the display block 180 from the outside multiple times until it exits the display block 180, and light crosstalk will not occur between the display blocks 180, achieving high brightness while reducing the occurrence of color deviation.

[0027] When the display block 180 is in the off state (i.e., no display here), a second electric field is applied to the first particles 134 under the display block 180, so as to control the first particles 134 to absorb the visible light entering the lower part of the display block 180 from the outside, so that the display block 180 is in the dark state. At this time, the display panel 100 can display different color combinations or be in the completely dark state.

[0028] To facilitate understanding of the display situation of the display panel 100 when the first particles 134 are in the off state of the display block 180, the present application takes the color resistors 150 in the continuous display block 180 as an example of red color resistors, green color resistors, and blue color resistors for illustration: When all the display blocks 180 are in the off state, the first particles under the red color resistor, the first particles 134 under the green color resistor, and the first particles 134 under the blue color resistor all absorb light, and the red color resistor, the green color resistor, and the blue color resistor do not display, so the display panel 100 is in the dark state. At this time, the display device may be in the shutdown, standby state or display a black screen; when the display panel 100 displays different color combinations, the first particles 134 under any one or two of the red color resistor, the green color resistor, and the blue color resistor absorb light, while the first particles 134 under the color resistor 150 that needs to be displayed reflect the light, enhancing the display brightness, and different colors are combined through the displayed color resistors 150.

[0029] It should be noted that in the present application, since the first electrode 141 and the second electrode 142 are provided on both sides of each concave structure 132, that is, the electric fields within each concave structure 132 are separately controlled by their respective corresponding first electrodes 141 and second electrodes 142. A control circuit can be additionally provided in the display panel 100 and connected to the first electrode 141 and the second electrode 142. The control circuit can be connected to the driving chip, and corresponding control signals are output through the driving chip, so as to control the electric field intensity of the first electric field and the second electric field, or the polarities of the first electrode 141 and the second electrode 142 by controlling the magnitude or direction of the output current; and it is a conventional means in the art to control the control circuit to output currents of different magnitudes or directions to the electrodes through the driving chip. Therefore, details are not described herein.

[0030] Specifically, the first particles 134 include electrophoretic particles 135. Each electrophoretic particle 135 includes a first portion 136 and a second portion 137. The first portion 136 is used for reflecting light, and the second portion 137 is used for absorbing light. When the electrophoretic particle 135 is under the action of the first electric field, the first portion 136 faces the color resistor 150, and the second portion 137 faces away from the color resistor 150; when the electrophoretic particle 135 is under the action of the second electric field, the second portion 137 faces the color resistor 150, and the first portion 136 faces away from the color resistor 150.

[0031] The electrophoretic particles 135 in this embodiment can be formed by encapsulating black and white light-reflecting charged materials in a microcapsule; the first portion 136 of the electrophoretic particle 135 can be white, and the second portion 137 can be black. The white first portion 136 is used for reflecting light, and the black second portion 137 is used for absorbing light.

[0032] When the electrophoretic particle 135 is under the action of the first electric field, the white first portion 136 faces the color resistor 150, and the black second portion 137 faces away from the color resistor 150. When external visible light enters below the color resistor 150 from the blank area 170, the light first irradiates the first portion 136, and the white first portion 136 will reflect the light. After the light is continuously reflected by the first portions 136 of multiple first particles 134, it finally exits from the blank area 170, achieving high brightness while reducing the occurrence of color deviation.

[0033] When the electrophoretic particle 135 is under the action of the second electric field, the black second portion 137 faces the color resistor 150, and the white first portion 136 faces away from the color resistor 150. When external visible light enters below the color resistor 150 from the blank area 170, the light first irradiates the second portion 137, and the black second portion 137 will absorb the light. At the same time, the black second portion 137 will also absorb the light entering the color resistor 150 from the external environment, so that the corresponding color resistor 150 does not emit light.

[0034] Furthermore, the charge polarities of the first part 136 and the second part 137 are different. In the first electric field state, the polarities of the first electrode 141 and the second electrode 142 are the same as the charge polarity of the first part 136 and opposite to the charge polarity of the second part 137. In the second electric field state, the polarities of the first electrode 141 and the second electrode 142 are the same as the charge polarity of the second part 137 and opposite to the charge polarity of the first part 136.

[0035] In this embodiment, the charge polarities of the first part 136 and the second part 137 are different, that is, when the first part 136 is positively charged, the second part 137 is negatively charged, or when the first part 136 is negatively charged, the second part 137 is positively charged; in the first electric field, the polarities of the first electrode 141 and the second electrode 142 are the same as the charge polarity of the first part 136, that is, when the first part 136 is positively charged, in the first electric field, the polarities of the first electrode 141 and the second electrode 142 are positive polarities, and when the first part 136 is negatively charged, in the first electric field, the polarities of the first electrode 141 and the second electrode 142 are negative polarities; in the second electric field, the polarities of the first electrode 141 and the second electrode 142 are the same as the charge polarity of the second part 137, that is, when the second part 137 is negatively charged, in the second electric field, the polarities of the first electrode 141 and the second electrode 142 are negative polarities, and when the second part 137 is positively charged, in the second electric field, the polarities of the first electrode 141 and the second electrode 142 are positive polarities; and because the micropores form a spatial restriction on the electrophoresis particles 135, the movement modes of the electrophoresis particles 135 with different polar charges under the action of the electric field are manifested as rotation within the micropores.

[0036] It should be noted that in this embodiment, the electric field intensities of the first electric field and the second electric field can be the same, only the electric field polarities are different.

[0037] Specifically, in this embodiment, taking the first part 136 being positively charged and the second part 137 being negatively charged as an example, its specific working principle is as follows: When the first electrode 141 and the second electrode 142 apply a first electric field to the first particles 134, since the control electrode is positively charged at this time, the first positively charged portion 136 will be repelled and rotate away from the first electrode 141 and the second electrode 142, and thus rotate to the side facing the color resistor 150. When external visible light irradiates from the blank area 170 under the color resistor 150, it will first irradiate the first portion 136, and thus be reflected by the first portion 136. After being reflected by multiple first portions 136, it finally exits from the blank area 170. In this way, while effectively increasing the display brightness, it can also avoid the light irradiating the adjacent color resistors 150, improve the light crosstalk problem between the color resistors 150, thereby reducing the color deviation effect and improving the display effect.

[0038] When the first electrode 141 and the second electrode 142 apply a second electric field to the first particles 134, since the control electrode is negatively charged at this time, the second negatively charged portion 137 will be repelled and rotate away from the first electrode 141 and the second electrode 142, and thus rotate to the side facing the color resistor 150. And the first positively charged portion 136 will be attracted and rotate towards the first electrode 141 and the second electrode 142, and face the first electrode 141 and the second electrode 142. When external visible light irradiates from the blank area 170 under the color resistor 150, it will first irradiate the second portion 137, and thus be absorbed by the second portion 137. Finally, after the light is absorbed by multiple second portions 137, the corresponding display block 180 is in a dark state or does not display at all.

[0039] In this embodiment, multiple color resistors 150 are located above the film layer 120, a black matrix 160 is provided between adjacent two color resistors 150, and the blank area 170 is located between the black matrix 160 and the color resistor 150.

[0040] In this embodiment, the color resistor 150 is located above the film layer 120 and is arranged on the same layer as the black matrix 160, that is, the color resistor 150 and the black matrix 160 form a film layer, which can be understood as the color resistor 150 layer; a black matrix 160 is added between adjacent two color resistors 150, and by the black matrix 160 absorbing the light between adjacent two color resistors 150, the light crosstalk problem between the color resistors 150 can be effectively improved, which is beneficial to improving the display effect of the display panel 100.

[0041] Figure 3 It is a schematic diagram of the light processing structure in the second embodiment of the display panel of the present application under the action of the first electric field; Figure 4 It is a schematic diagram of the light processing structure in the second embodiment of the display panel of the present application under the action of the second electric field; as Figure 3 and Figure 4As shown, the optical processing component 131 includes a concave structure 132, an optical adjustment layer 190, and a plurality of first particles 134. The optical adjustment layer 190 is disposed below the concave structure 132. The concave structure 132 includes a recess 133 that surrounds the space corresponding to the concave structure 132 below the color resistor 150. The upper and lower surfaces of the recess 133 are total reflection surfaces, and the plurality of first particles 134 are filled in the cavity surrounded by the recess 133. The control component 140 includes a first electrode 141, a second electrode 142, a third electrode 143, and a fourth electrode 144. The first electrode 141 and the second electrode 142 are respectively disposed on opposite sides of the concave structure 132. The first electrode 141 and the second electrode 142 are used to apply a first electric field or a second electric field to both ends of the first particles 134. The third electrode 143 is located on the side of the optical adjustment layer 190 close to the concave structure 132, and the fourth electrode 144 is located on the side of the optical adjustment layer 190 away from the concave structure 132. The third electrode 143 is a light-transmitting electrode. The third electrode 143 and the fourth electrode 144 apply a first electric field or a second electric field to the optical adjustment layer 190. When the first electrode 141 and the second electrode 142 apply a first electric field to the plurality of first particles 134, the plurality of first particles 134 transmit the light irradiated below the color resistor 150. When the first electrode 141 and the second electrode 142 apply a second electric field to the first particles 134, the first particles 134 absorb the light irradiated below the color resistor 150. When the third electrode 143 and the fourth electrode 144 apply a first electric field to the optical adjustment layer 190, the optical adjustment layer 190 reflects the light. When the third electrode 143 and the fourth electrode 144 apply a second electric field to the optical adjustment layer 190, the optical adjustment layer 190 absorbs the light.

[0042] The difference between this embodiment and Figure 1 the embodiment shown is that in this embodiment, the upper and lower surfaces of the recess 133 of the concave structure 132 are total reflection surfaces, while the other parts of the concave structure 132 are still made of light-transmitting materials. The plurality of first particles 134 are filled in the cavity surrounded by the recess 133 and the color resistor 150. An optical adjustment layer 190 is further disposed below the concave structure 132, and a third electrode 143 and a fourth electrode 144 are disposed on the upper and lower sides of the optical adjustment layer 190. Among them, the third electrode 143 is a light-transmitting electrode. Different voltages are applied on the upper and lower sides of the optical adjustment layer 190 by the third electrode 143 and the fourth electrode 144 to form different electric fields, so as to control the optical adjustment layer 190 to switch between the light reflection and light absorption states.

[0043] It should be noted that the way the third electrode 143 and the fourth electrode 144 access signals is the same as Figure 1In the illustrated embodiment, the second electrode 142 and the third electrode 143 are connected to signals in the same manner, that is, they are connected to the driving chip through a control circuit, and different current signals are output by the driving chip to generate different voltages, thereby forming different electric fields. Since the driving method is a conventional means, it will not be elaborated in this application. Since both the concave structure 132 and the light regulating layer 190 require an electric field applied by an electrode, in order to prevent a possible short circuit between the two, an insulating layer 145 can be provided between the electrodes between the light regulating layer 190 and the concave structure 132, thereby preventing a short circuit.

[0044] In this embodiment, the visible light in the external environment can be understood to enter the display block 180 in two parts. One part is irradiated into the color filter 150, and the other part is irradiated into the blank area 170. When the first electrode 141 and the second electrode 142 apply a first electric field to the first particles 134, the first particles 134 are in a light-transmitting state, and when the third electrode 143 and the fourth electrode 144 apply a first electric field to the light regulating layer 190, the light regulating layer 190 reflects light. A part of the light irradiated into the color filter 150 will directly irradiate the first particles 134 in the light-transmitting state, penetrate through the first particles 134 and irradiate the upper total reflection surface of the recess 133, and then be reflected to the color filter 150 through the total reflection surface of the recess 133, and finally be emitted from the color filter 150 to ensure the normal color display of the color filter 150. And because the total reflection surface of the recess 133 forms a semi-surrounding below the color filter 150, this part of the light will not irradiate in the direction of the adjacent color filter 150, so there will be no light crosstalk to the adjacent color filter 150, which is beneficial to reducing the color deviation phenomenon.

[0045] The other part of the light irradiated into the blank area 170 is further divided into two light parts. The first light part irradiates the lower total reflection surface of the recess 133. After the light is reflected by the lower total reflection surface of the recess 133, since the lower total reflection surface of the recess 133 is an outer arc surface, the light will be reflected to the light regulating layer 190 below the concave structure 132. At this time, the light regulating layer 190 reflects the light under the action of the first electric field, so that the light irradiated to the light regulating layer 190 is reflected back to the blank area 170 again and finally emitted from the blank area 170. The second light part is the light directly irradiating the light regulating layer 190, and this part of the light will also be directly reflected by the light regulating layer 190 to the blank area 170 and finally emitted from the blank area 170. In this way, the brightness of the display block 180 can be effectively increased, which is beneficial to improving the display effect.

[0046] The light between two adjacent concave structures 132 is reflected by the lower total reflection surfaces of the adjacent two recessed portions 133, and finally reflected towards the blank area 170 and emitted from the blank area 170, thereby increasing the brightness of the display block 180, and will not enter the area below the adjacent color resist 150. Therefore, it will not cause light crosstalk to the adjacent color resist 150 and will not affect the normal display of the adjacent color resist 150, which is beneficial to reducing the color deviation phenomenon.

[0047] When the first electrode 141 and the second electrode 142 apply a second electric field to the first particles 134, the first particles 134 are in a light-absorbing state, and when the third electrode 143 and the fourth electrode 144 apply a first electric field to the light modulation layer 190, the light modulation layer 190 absorbs light; in this way, whether the light irradiates into the color resist 150 or into the blank area 170, it can be absorbed by the first particles 134 and the light modulation layer 190, so that the corresponding display block 180 does not display or is in a dark state. In this way, it is possible to flexibly control whether the color resist 150 of different colors emits light or not according to the actual display requirements, forming different display color combinations, which is beneficial to improving the display effect or making the display panel 100 in a closed or standby state.

[0048] Specifically, the first particles 134 include electrochromic particles 138. The electrochromic particles 138 are in a light-transmitting state under the action of the first electric field and in a black state under the action of the second electric field.

[0049] In this embodiment, the electrochromic particles 138 can be made of a tungsten trioxide (WO3)-titanium dioxide (TiO2) composite material, and by applying an electric voltage of 3V - 5V, the material can be changed from a nearly transparent state to a dark black state.

[0050] It should be noted that in this embodiment, the first electric field is 0, that is, the electric field state without power supply; the second electric field can be an electric field generated under the action of a voltage of 3V - 5V.

[0051] When the electrochromic particles 138 are in a light-transmitting state under the action of the first electric field, visible light in the external environment irradiates into the area below the color resist 150 from above the color resist 150, directly irradiates onto the electrochromic particles 138, and penetrates through the electrochromic particles 138 to irradiate onto the total reflection surface of the recessed portion 133. The light is reflected back towards the color resist 150 by the total reflection surface of the recessed portion 133 and finally emitted from the color resist 150, thereby ensuring the normal display of the color resist 150.

[0052] When the electrochromic particles 138 are in the black state under the action of the second electric field, visible light in the external environment irradiates from above the color resistor 150 and enters below the color resistor 150, and will directly irradiate on the electrochromic particles 138 and be absorbed by the electrochromic particles 138, so that the color resistor 150 is not displayed; that is, by the conversion of the electrochromic particles 138 from the light-transmitting state to the light-absorbing state under the action of different electric fields, the display or non-display of the display block 180 is controlled to regulate the display color, so that the display panel 100 can display different colors and improve the display effect.

[0053] Furthermore, a plurality of electrophoretic particles 135 are filled in the light adjustment layer 190. Each electrophoretic particle 135 includes a first part 136 and a second part 137. The first part 136 is used for reflecting light, and the second part 137 is used for absorbing light. When the electrophoretic particle 135 is under the action of the first electric field, the first part 136 faces the color resistor 150, and the second part 137 faces away from the color resistor 150; when the electrophoretic particle 135 is under the action of the second electric field, the second part 137 faces the color resistor 150, and the first part 136 faces away from the color resistor 150.

[0054] The electrophoretic particles 135 in this embodiment can be formed by wrapping a charged material that reflects black and white in a microcapsule; the first part 136 of the electrophoretic particle 135 can be white, and the second part 137 can be black. The white first part 136 is used for reflecting light, and the black second part 137 is used for absorbing light.

[0055] When the electrophoretic particle 135 is under the action of the first electric field, the white first part 136 faces the color resistor 150, and the black second part 137 faces away from the color resistor 150. When external visible light irradiates from the blank area 170 to the total reflection surface of the concave portion 133, the light is reflected by the concave portion 133 to the light adjustment layer 190 and irradiates on the first part 136 of the electrophoretic particle 135 in the light adjustment layer 190. The white first part 136 will reflect the light. After the light is continuously reflected by the first parts 136 of the plurality of first particles 134, it finally exits from the blank area 170, achieving high brightness while reducing the occurrence of color deviation.

[0056] When the electrophoretic particle 135 is under the action of the second electric field, the black second part 137 faces the color resistor 150, and the white first part 136 faces away from the color resistor 150. When external visible light irradiates from the blank area 170 to the total reflection surface of the concave portion 133, the light is reflected by the concave portion 133 to the light adjustment layer 190 and irradiates on the second part 137 of the electrophoretic particle 135 in the light adjustment layer 190. The black second part 137 will absorb the light. At the same time, the black second part 137 will also absorb the light directly irradiating on the light adjustment layer 190 from the external environment, so that the corresponding display block 180 does not emit light.

[0057] That is, the electrophoretic particles 135 in the light adjustment layer 190 in this embodiment are the same as the electrophoretic particles 135 in the first embodiment, and the same type of electrophoretic particles 135 are used. The control method of the electrophoretic particles 135 is also the same as that in the first embodiment. In this embodiment, by applying different voltages to the third electrode 143 and the fourth electrode 144, the first part 136 and the second part 137 of the electrophoretic particles 135 with different charges are controlled to rotate, so that the first part 136 faces the display block 180 to reflect light or the second part 137 faces the display block 180 to absorb light.

[0058] In addition, in this embodiment, each color resistor 150 is respectively embedded in the diaphragm layer 120 and is located at the opening of the recess 133; the ends of two adjacent recesses 133 are spliced to form a blank area 170.

[0059] The difference between this embodiment and the previous embodiment is that in this embodiment, instead of additionally providing a black matrix 160, each color resistor 150 is encapsulated in the diaphragm layer 120, and each color resistor 150 is located at the opening of the recess 133 of the corresponding concave structure 132; in this way, the original color resistor 150 layer and the diaphragm layer 120 can be integrated into one layer, effectively reducing the thickness of the film layer, which is beneficial to realizing the thinning of the display panel 100.

[0060] At the same time, by using the ends of the recesses 133 of two adjacent concave structures 132 to be spliced to form a blank area 170, the light in the external environment can normally enter below the display block 180 through the blank area 170; it does not affect the reflection or absorption of light by the first particles 134.

[0061] Figure 5 It is a schematic diagram of the third embodiment of the display panel of the present application. As Figure 5 shown, the bottom of the recess 133 is a planar structure, the width of the recess 133 is X, the depth of the recess 133 is Y, and the two side walls of the recess 133 extend downward in a parabola, and the parabola satisfies the relationship: X 2 = 2AY; where A is a constant and A is greater than 0.

[0062] The difference between the present application and the above embodiment is that the present application improves the structure of the recess 133. Since the side walls of the recess 133 extend downward in a parabola and are connected to the bottom of the recess 133, and the parabola satisfies the relationship X 2= 2AY; wherein, the bottom width of the recess 133 may be 2A, and the top opening width of the recess 133 may be 4A. By adjusting the value of A, the curvature of the parabola can be changed, thereby affecting the arrangement of the first particles 134, and further affecting the reflection path and angle of light, so that the display effect can be flexibly adjusted according to actual display requirements.

[0063] When the control component 140 applies a first electric field, the first particles 134 reflect the light irradiated below the display block 180 upward to the display block 180. When the light irradiated into the color filter 150 in the positive direction in the external environment irradiates the bottom of the recess 133, since the bottom of the recess 133 is a planar structure, the first particles 134 can be uniformly arranged along the bottom of the recess 133, and the light can be uniformly reflected back to the color filter 150 through the bottom surface of the recess 133 and then emitted by the color filter 150, which is beneficial to improving the light emission uniformity of the color filter 150; when the light obliquely irradiated into the color filter 150 reaches the side wall of the recess 133, the first particles 134 arranged along the side wall of the recess 133 can effectively concentrate the light to the bottom of the recess 133, so that the light is reflected again to the direction of the color filter 150 through the first particles 134 at the bottom of the recess 133 and emitted by the color filter 150, which is beneficial to light utilization and increases the display brightness of the color filter 150.

[0064] Figure 6 Schematic diagram of an embodiment of the display device of the present application, as Figure 6 shown, the embodiment of the present application also discloses a display device 10, including a housing 200. The display device 10 further includes the above-mentioned display panel 100, and the display panel 100 is arranged in the housing 200. The display panel 100 is installed in the housing 200. The housing 200 is used to protect the display panel 100 from being easily damaged by external forces, and can prevent external moisture or dust from entering the inside of the display panel 100 to a certain extent, affecting the performance of the display panel 100, which is beneficial to extending the service life of the display panel 100.

[0065] In the present application, the display panel 100 of the display device 10 is a display panel 100 with a combination structure of a color filter layer and an electronic paper mold. The display device 10 may be a display device such as a mobile phone or a tablet computer, but is not limited to the above-listed devices.

[0066] In the traditional display device 10 with a display panel 100 having a combination structure of a color filter layer and an electronic paper mold, when the display panel 100 is irradiated by natural light at a large angle, light crosstalk is likely to occur between adjacent color filters 150, resulting in display color deviation and affecting the quality of the display device 10.

[0067] Based on the above problems, the present application improves the traditional display panel 100. By providing a plurality of light processing structures 130 in the diaphragm layer 120, when visible light in the external environment irradiates the display panel 100, it will first irradiate the display block 180 composed of the blank area 170 and the color resistor 150, and then irradiate the light processing structure 130 from the display block 180; when the control component 140 of the light processing structure 130 applies a first electric field to the light processing component 131, the light processing component 131 reflects the light irradiating below the display block 180 upward above the display block 180. On the one hand, the light below the display block 180 will not irradiate the area corresponding to the adjacent color resistor 150 and be emitted by the adjacent color resistor 150, thereby reducing the light crosstalk between two adjacent color resistors 150 and improving the problem of display color deviation. On the other hand, after the light is reflected above the display block 180, it can be used to increase the display brightness; when the control component 140 applies a second electric field to the light processing component 131, the light processing component 131 absorbs the light irradiating below the display block 180, so that the corresponding color resistor 150 does not emit light. In this way, it is possible to flexibly control the emission or non-emission of different color resistors 150 according to actual display requirements, forming different display color combinations, which is beneficial to improving the display effect.

[0068] It should be noted that the inventive concept of the present application can form a very large number of embodiments. However, due to the limited space of the application documents, it is impossible to list them all. Therefore, on the premise of no conflict, the above-described embodiments or technical features can be combined arbitrarily to form new embodiments. After the combination of each embodiment or technical feature, the original technical effect will be enhanced.

[0069] The above content is a further detailed description of the present application in combination with specific optional implementation manners. It cannot be determined that the specific implementation of the present application is only limited to these descriptions. For those of ordinary skill in the technical field to which the present application belongs, without departing from the concept of the present application, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present application.

Claims

1. A display panel, characterized in that, It includes a diaphragm layer, the diaphragm layer includes a plurality of light processing structures, each of the light processing structures includes a light processing component and a control component, the control component is connected to the light processing component, and the control component is configured to apply a first electric field or a second electric field to the light processing component; A color resistor is respectively arranged above each of the light processing components, adjacent two color resistors are arranged at intervals, and a blank area is arranged between the adjacent two color resistors. The blank area is configured to transmit visible light in the external environment, and the color resistor and the adjacent blank area form a display block; When the control component applies a first electric field to the light processing component, the light processing component reflects the light irradiated below the display block upward above the display block; when the control component applies a second electric field to the light processing component, the light processing component absorbs the light irradiated below the display block.

2. The display panel according to claim 1, wherein The light processing component includes a concave structure and a plurality of first particles. The concave structure is made of a light-transmitting material; the concave structure includes a recessed part, and the recessed part surrounds the space corresponding to the concave structure below the color resistor; the plurality of first particles are arranged along the edge of the recessed part; The control component includes a first electrode and a second electrode; the first electrode and the second electrode are respectively arranged on opposite sides of the concave structure; the first electrode and the second electrode are configured to apply a first electric field or a second electric field to both ends of the first particles; When the first electrode and the second electrode apply a first electric field to the plurality of first particles, the plurality of first particles reflect the light irradiated below the display block upward above the display block; when the first electrode and the second electrode apply a second electric field to the first particles, the first particles absorb the light irradiated below the display block.

3. The display panel according to claim 2, wherein The first particles include electrophoretic particles, each of the electrophoretic particles includes a first part and a second part. The first part is configured to reflect light, and the second part is configured to absorb light. When the electrophoretic particles are under the action of the first electric field, the first part faces the color resistor and the second part faces away from the color resistor; When the electrophoretic particles are under the action of the second electric field, the second part faces the color resistor and the first part faces away from the color resistor.

4. The display panel according to claim 3, wherein, The charge polarities of the first part and the second part are different; In the state of the first electric field, the polarities of the first electrode and the second electrode are the same as the charge polarity of the first part and opposite to the charge polarity of the second part; In the state of the second electric field, the polarities of the first electrode and the second electrode are the same as the charge polarity of the second part and opposite to the charge polarity of the first part.

5. The display panel according to claim 4, wherein A plurality of the color resistors are located above the diaphragm layer, a black matrix is arranged between adjacent two color resistors, and the blank area is located between the black matrix and the color resistor.

6. The display panel according to claim 1, wherein The light processing component includes a concave structure, a light adjustment layer, and a plurality of first particles. The light adjustment layer is disposed below the concave structure. The concave structure includes a recessed portion that surrounds the space corresponding to the concave structure below the color resistor. The upper and lower surfaces of the recessed portion are total reflection surfaces, and a plurality of the first particles are filled in the cavity surrounded by the recessed portion. The control component includes a first electrode, a second electrode, a third electrode, and a fourth electrode. The first electrode and the second electrode are respectively disposed on opposite sides of the concave structure. The first electrode and the second electrode are configured to apply a first electric field or a second electric field to both ends of the first particles. The third electrode is located on the side of the light adjustment layer close to the concave structure, and the fourth electrode is located on the side of the light adjustment layer away from the concave structure. The third electrode is a light-transmissive electrode. The third electrode and the fourth electrode apply a first electric field or a second electric field to the light adjustment layer. When the first electrode and the second electrode apply a first electric field to the plurality of first particles, the plurality of first particles transmit the light irradiated below the color resistor. When the first electrode and the second electrode apply a second electric field to the first particles, the first particles absorb the light irradiated below the color resistor. When the third electrode and the fourth electrode apply a first electric field to the light adjustment layer, the light adjustment layer reflects the light. When the third electrode and the fourth electrode apply a second electric field to the light adjustment layer, the light adjustment layer absorbs the light.

7. The display panel according to claim 6, characterized in that, The first particles include electrochromic particles. The electrochromic particles are in a light-transmissive state under the action of a first electric field and in a black state under the action of a second electric field.

8. The display panel according to claim 7, characterized in that, The light adjustment layer is filled with a plurality of electrophoretic particles. Each electrophoretic particle includes a first portion and a second portion. The first portion is configured to reflect light, and the second portion is configured to absorb light. When the electrophoretic particles are under the action of the first electric field, the first portion faces the color resistor, and the second portion faces away from the color resistor. When the electrophoretic particles are under the action of the second electric field, the second portion faces the color resistor, and the first portion faces away from the color resistor.

9. The display panel according to any one of claims 2 to 8, characterized in that, The bottom of the recessed part is a planar structure, the width of the recessed part is X, the depth of the recessed part is Y, and the two side walls of the recessed part extend downward in a parabola, and the parabola satisfies the relation: X 2 = 2AY; where A is a constant and A is greater than 0.

10. A display device includes a housing, characterized in that, The display device further includes a display panel according to any one of claims 1 to 9, and the display panel is disposed in the housing.

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