Display panel and display device

Abstract

The present application relates to the field of display, and specifically discloses a display panel and a display device. The display panel includes a diaphragm layer, wherein the diaphragm layer includes a plurality of light processing structures, each of which 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. A color block is provided above each light processing component, and two adjacent color blocks are spaced apart, and a blank area is provided between the two adjacent color blocks. The color block and its 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 to the bottom of the display block toward the top of 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 to the bottom of the display block. The present application improves the light crosstalk problem between adjacent color blocks by the above method.

Description

Technical Field

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

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

[0003] This structure usually increases pixel display brightness by adding a blank area around the color block. However, with the setting of the blank area, some large-angle light will be reflected to the adjacent color block after being incident. At this time, the emission will affect the chromaticity, 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 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, the purpose of which is to improve the light crosstalk problem between adjacent color resists.

[0006] An embodiment of the present application discloses a display panel, including a diaphragm layer, which includes multiple light processing structures, each of which includes a light processing component and a control component, the control component being connected to the light processing component, and the control component being used to apply a first electric field or a second electric field to the light processing component; a color block is respectively arranged above each of the light processing components, two adjacent color blocks are arranged at intervals, and a blank area is provided between two adjacent color blocks, the blank area being used to pass visible light in the external environment, the color blocks and the adjacent blank areas forming 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 toward 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.

[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, and the recessed portion surrounds the space below the color resist corresponding to the concave structure; 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 arranged on opposite sides of the concave structure; the first electrode and the second electrode are used to apply a first electric field or a second electric field to both ends of the first particle; when the first electrode and the second electrode apply the first electric field to the plurality of first particles, the plurality of first particles will reflect the light irradiated below the display block toward above the display block; when the first electrode and the second electrode apply the second electric field to the first particles, the first particles will absorb the light irradiated below the display block.

[0008] Optionally, the first particle includes an electrophoretic particle, each of the electrophoretic particles includes a first part and a second part, the first part is used to reflect light, and the second part is used to absorb light, when the electrophoretic particle is under the action of the first electric field, the first part faces the color resistance, and the second part faces away from the color resistance; when the electrophoretic particle is under the action of the second electric field, the second part faces the color resistance, and the first part faces away from the color resistance.

[0009] Optionally, the charge polarity of the first part and the second part is different; in the first electric field state, the polarity of the first electrode and the second electrode is 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 polarity of the first electrode and the second electrode is 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 resists are located above the film layer, a black matrix is ​​provided between two adjacent color resists, and the blank area is located between the black matrix and the color resists.

[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 arranged below the concave structure, the concave structure includes a recessed portion, and the recessed portion surrounds the space below the color resist corresponding to the concave structure; the upper and lower surfaces of the recessed portion are total reflection surfaces, and a 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 arranged on opposite sides of the concave structure; the first electrode and the second electrode are used to apply a first electric field or a second electric field to both ends of the first particle; the third electrode is located on the side of the light adjustment layer close to the concave structure, and the fourth electrode is located The light adjustment layer is on a side away from the concave structure, and the third electrode is a light-transmitting 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 under the color resist; when the first electrode and the second electrode apply a second electric field to the first particles, the first particles absorb the light irradiated under the color resist; 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, which are in a light-transmitting state under the action of a first electric field and in a black state under the action of a second electric field.

[0013] Optionally, the light adjustment layer is filled with multiple electrophoretic particles, each of the electrophoretic particles includes a first part and a second part, the first part is used to reflect light, and the second part is used to absorb light, when the electrophoretic particle is under the action of the first electric field, the first part faces the color resistance, and the second part faces away from the color resistance; when the electrophoretic particle is under the action of the second electric field, the second part faces the color resistance, and the first part faces away from the color resistance.

[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 parabola, and the parabola satisfies the relationship: X 2 =2AY; where A is a constant and A is greater than 0.

[0015] An embodiment of the present application further discloses a display device, including a housing. The display device also 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 setting multiple light processing structures in the membrane 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 resist, and then irradiate the light processing structure from the display block; and when the control component of the light processing structure applies a first electric field to the light processing component, the light processing component will reflect the light irradiated to the bottom of the display block toward the top of the display block. On the one hand, the light below the display block will not irradiate the area corresponding to the adjacent color resist but will be emitted by the adjacent color resist, thereby reducing the light crosstalk between the two adjacent color resists and improving the problem of display color deviation. On the other hand, after the light is reflected to the top of the display block, it can be used to increase the display brightness; and when the control component applies a second electric field to the light processing component, the light processing component will absorb the light irradiated to the bottom of the display block; so that the corresponding color resist does not emit light. In this way, the color resists of different colors can be flexibly controlled to emit or not emit light according to actual display requirements, forming different display color combinations, which is beneficial to improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0018] Figure 1 This is a schematic diagram of the light processing structure of the first embodiment of the display panel of the present application under the action of the first electric field;

[0019] Figure 2 This is a schematic diagram of the light processing structure of the first embodiment of the display panel of the present application under the action of the second electric field;

[0020] Figure 3 This is a schematic diagram of the light processing structure of the second embodiment of the display panel of the present application under the action of the first electric field;

[0021] Figure 4 This is a schematic diagram of the light processing structure of the second embodiment of the display panel of the present application under the action of the second electric field;

[0022] Figure 5 is a schematic diagram of a third embodiment of a display panel of the present application;

[0023] Figure 6 FIG. 1 is a schematic diagram of an embodiment of a display device of the present application.

[0024] Among them, 10, display device; 100, display panel; 200, shell; 120, membrane layer; 130, light processing structure; 131, light processing component; 132, concave structure; 133, recessed portion; 134, first particles; 135, electrophoretic particles; 136, first part; 137, second part; 138, electrically controlled color-changing particles; 140, control component; 141, first electrode; 142, second electrode; 143, third electrode; 144, fourth electrode; 150, color resistance; 160, black matrix; 170, blank area; 180, display block; 190, light adjustment layer. DETAILED DESCRIPTION

[0025] The present application is described in detail below with reference to the accompanying drawings and optional embodiments. It should be noted that, under the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Figure 1 This is a schematic diagram of the light processing structure of the first embodiment of the display panel of the present application under the action of the first electric field; Figure 2 Schematic diagram of the light processing structure of the first embodiment of the display panel of the present application under the action of the second electric field; Figure 1 and Figure 2 As shown, the embodiment of the present application discloses a display panel 100, including 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, and 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 resist 150 is provided above each light processing component 131, and two adjacent color resists 150 are arranged at intervals, and the two adjacent color resists 150 are arranged at intervals. 0 is provided with a blank area 170, which is used to transmit visible light in the external environment. The color resist 150 and the 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 to the bottom of the display block 180 toward the top of the display block 180; 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 to the bottom of the display block 180.

[0027] The present application improves the traditional display panel 100. By setting a plurality of light processing structures 130 in the film layer 120, when the 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 resist 150, and then irradiate the light processing structure 130 from the display block 180; and 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 to the bottom of the display block 180 toward the top of the display block 180, so that the light below the display block 180 will not be reflected toward the adjacent color block 180. The area corresponding to the color resist 150 is illuminated and emitted by the adjacent color resist 150, thereby reducing the light crosstalk between the two adjacent color resists 150 and improving the problem of display color deviation. On the other hand, the light can be used to increase the display brightness after being reflected above the display block 180. 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 resist 150 does not emit light. In this way, the color resists 150 of different colors can be flexibly controlled to emit or not emit light according to actual display requirements, forming different display color combinations, which is beneficial to improving the display effect.

[0028] 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 portion 133. The recessed portion 133 surrounds the space corresponding to the concave structure 132 below the color resist 150. The plurality of first particles 134 are arranged along the edge of the recessed portion 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 disposed on two opposite sides of the concave structure 132. side; 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 the first electric field to the plurality of first particles 134, the plurality of first particles 134 reflect the light irradiated to the bottom of the display block 180 toward the top of the display block 180; when the first electrode 141 and the second electrode 142 apply the second electric field to the first particles 134, the first particles 134 absorb the light irradiated to the bottom of the display block 180.

[0029] In this embodiment, the entire base material of the concave structure 132 is made of a light-transmitting material, such as glass. The base material of the membrane layer 120 can also be made of glass. The multiple concave structures 132 are encapsulated into the membrane layer 120 so that visible light in the external environment can pass through normally and illuminate the first particles 134. The multiple first particles 134 can be formed by first opening multiple micropores on the side of the recessed portion 133 away from the color resist 150. The micropores can be formed by etching on the glass substrate. Then, the multiple first particles 134 are injected into the micropores so that the multiple first particles 134 are arranged along the extension direction of the recessed portion 133. The recessed portion 133 surrounds the space below the color resist 150 corresponding to the concave structure 132. Therefore, after the plurality of first particles 134 are arranged along the extension direction of the recessed portion 133, a "semi-enclosed" structure is formed in the space below the color resist 150 corresponding to the concave structure 132, thereby separating the space below the corresponding film layer 120 between two adjacent color resists 150. The first electrode 141 and the second electrode 142 are respectively located on both sides of the concave structure 132, applying different voltages to both ends of the first particle 134, thereby forming a first electric field or a second electric field.

[0030] 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 light irradiated below the display block 180 toward above the display block 180. On the one hand, this prevents the light below the display block 180 from irradiating the area corresponding to the adjacent color resist 150 and is emitted from the adjacent color resist 150, thereby reducing light crosstalk between two adjacent color resists 150 and improving the problem of display color shift. On the other hand, the light reflected above the display block 180 can be used to increase display brightness.

[0031] 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 light irradiating the bottom of the display block 180, rendering the corresponding color resist 150 non-luminescent. This allows for flexible control of the color resists 150 of different colors to emit or not emit light according to actual display requirements, creating different display color combinations and improving display effects.

[0032] That is, in the present application, each color resist 150 and the blank areas 170 on both sides of each color resist 150 form an integrated display block 180, and the corresponding concave structures 132 below the display blocks 180 separate the display blocks 180. Different voltages are applied to the two ends of the first particles 134 on the concave structures 132 through the control electrodes on both sides of the concave structures 132, thereby forming a first electric field or a second electric field; when the display block 180 is in a display state, the first electric field is applied to the first particles 134 below the display block 180, thereby controlling the first particles 134 to reflect visible light from the outside entering below the display block 180 multiple times until it is emitted out of the display block 180, without generating light crosstalk between the display blocks 180, thereby achieving high brightness while reducing the occurrence of color shift.

[0033] When the display block 180 is in the off state (i.e., not shown here), a second electric field is applied to the first particles 134 below the display block 180, thereby controlling the first particles 134 to absorb visible light from the outside that enters below the display block 180, thereby making the display block 180 in a dark state. At this time, the display panel 100 can display different color combinations or be in a completely dark state.

[0034] To facilitate understanding of the display of the display panel 100 when the first particle 134 display block 180 is in the off state, the present application uses the color resist 150 in the continuous display block 180 as an example of red color resist, green color resist, and blue color resist:

[0035] When all the display blocks 180 are in the off state, the first particles under the red color resist, the first particles 134 under the green color resist, and the first particles 134 under the blue color resist all absorb light, and the red color resist, the green color resist, and the blue color resist are not displayed, then the display panel 100 is in a dark state, at which time the display device may be in the off state, 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, green, and blue color resists 150 absorb light, while the first particles 134 under the color resist 150 to be displayed reflects the light, thereby enhancing the display brightness, and combining different colors through the displayed color resist 150.

[0036] 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 field in each concave structure 132 is separately controlled by the corresponding first electrode 141 and the second electrode 142, a control circuit can be additionally provided in the display panel 100 to be connected to the first electrode 141 and the second electrode 142. The control circuit can be connected to the driving chip, and the corresponding control signal can be output through the driving chip, thereby controlling the output current size or direction to control the electric field strength of the first electric field and the second electric field, or the polarity of the first electrode 141 and the second electrode 142; and controlling the control circuit through the driving chip to output currents of different sizes or directions to the electrodes is a conventional means in this field, so it will not be repeated in this application.

[0037] Specifically, the first particle 134 includes an electrophoretic particle 135, and each electrophoretic particle 135 includes a first part 136 and a second part 137. The first part 136 is used to reflect light, and the second part 137 is used to absorb light. When the electrophoretic particle 135 is under the action of the first electric field, the first part 136 faces the color resist 150, and the second part 137 faces away from the color resist 150; when the electrophoretic particle 135 is under the action of the second electric field, the second part 137 faces the color resist 150, and the first part 136 faces away from the color resist 150.

[0038] The electrophoretic particle 135 in this embodiment can be formed by encapsulating black and white reflective charged materials in a microcapsule; the first part 136 of the electrophoretic particle 135 can be white, and the second part 137 can be black, and the white first part 136 is used to reflect light, and the black second part 137 is used to absorb light.

[0039] When the electrophoretic particles 135 are under the action of the first electric field, the white first portion 136 faces the color resist 150, while the black second portion 137 faces away from the color resist 150. When external visible light enters the bottom of the color resist 150 from the blank area 170, the light first hits the first portion 136, and the white first portion 136 reflects the light. After the light is continuously reflected by the first portions 136 of multiple first particles 134, it is finally emitted from the blank area 170, achieving high brightness while reducing the occurrence of color shift.

[0040] When the electrophoretic particles 135 are subjected to the second electric field, the black second portion 137 faces the color resist 150, while the white first portion 136 faces away from the color resist 150. When external visible light enters the bottom of the color resist 150 from the blank area 170, the light first shines on the second portion 137, and the black second portion 137 absorbs the light. At the same time, the black second portion 137 also absorbs the light from the external environment that shines into the color resist 150, thereby preventing the corresponding color resist 150 from emitting light.

[0041] 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.

[0042] In this embodiment, the charge polarities of the first portion 136 and the second portion 137 are different, that is, when the first portion 136 is positively charged, the second portion 137 is negatively charged, or when the first portion 136 is negatively charged, the second portion 137 is positively charged; and under the first electric field, the polarity of the first electrode 141 and the second electrode 142 is the same as the charge polarity of the first portion 136, that is, when the first portion 136 is positively charged, under the first electric field, the polarity of the first electrode 141 and the second electrode 142 is positive, and when the first portion 136 is negatively charged, under the first electric field, the polarity of the first electrode 141 and the second electrode 142 is negative. The polarity of 142 is negative; and the polarity of the first electrode 141 and the second electrode 142 under the second electric field is the same as the charge polarity of the second part 137, that is, when the second part 137 is negatively charged, the polarity of the first electrode 141 and the second electrode 142 is negative under the second electric field, and when the second part 137 is positively charged, the polarity of the first electrode 141 and the second electrode 142 is positive under the second electric field; and since the micropores form a spatial restriction on the electrophoretic particles 135, the electrophoretic particles 135 with charges of different polarities move in a manner that rotates within the micropores under the action of the electric field.

[0043] It should be noted that, in this embodiment, the electric field strengths of the first electric field and the second electric field may be the same, but the electric field polarities are different.

[0044] Specifically, in this embodiment, the first portion 136 is positively charged and the second portion 137 is negatively charged. The specific working principle is as follows:

[0045] 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 positively charged first portion 136 will be subjected to the repulsive force and rotate in a direction away from the first electrode 141 and the second electrode 142, thereby rotating to the side facing the color filter 150. When external visible light shines from the blank area 170 into the bottom of the color filter 150, it will first shine on the first portion 136 and be reflected by the first portion 136. After being reflected by multiple first portions 136, it will finally be emitted from the blank area 170. This can effectively increase the display brightness while preventing light from shining on adjacent color filters 150, improving the problem of light crosstalk between the color filters 150, thereby reducing the impact of color deviation and improving the display effect.

[0046] When the first electrode 141 and the second electrode 142 apply a second electric field to the first particle 134, since the control electrode is negatively charged at this time, the negatively charged second portion 137 will be acted upon by the repulsive force and rotate in a direction away from the first electrode 141 and the second electrode 142, thereby rotating to the side facing the color filter 150. The positively charged first portion 136 will be acted upon by the attractive force and rotate in a direction close to the first electrode 141 and the second electrode 142, and toward the first electrode 141 and the second electrode 142. When external visible light shines from the blank area 170 into the bottom of the color filter 150, it will first shine on the second portion 137 and 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.

[0047] In this embodiment, a plurality of color resists 150 are located above the film layer 120 , a black matrix 160 is disposed between two adjacent color resists 150 , and a blank area 170 is located between the black matrix 160 and the color resists 150 .

[0048] In this embodiment, the color resist 150 is located above the film layer 120 and is arranged in the same layer as the black matrix 160, that is, the color resist 150 and the black matrix 160 form a film layer, which can be understood as the color resist 150 layer; the black matrix 160 is added between two adjacent color resists 150, and the black matrix 160 absorbs the light between the two adjacent color resists 150, which can effectively improve the light crosstalk problem between the color resists 150, which is beneficial to improving the display effect of the display panel 100.

[0049] Figure 3 This is a schematic diagram of the light processing structure of the second embodiment of the display panel of the present application under the action of the first electric field; Figure 4 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; Figure 3 and Figure 4As shown, the light processing component 131 includes a concave structure 132, a light adjustment layer 190, and a plurality of first particles 134. The light adjustment layer 190 is arranged below the concave structure 132. The concave structure 132 includes a recessed portion 133. The recessed portion 133 surrounds the space below the color resist 150 corresponding to the concave structure 132. The upper and lower surfaces of the recessed portion 133 are total reflection surfaces. The plurality of first particles 134 are filled in the cavity surrounded by the recessed portion 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 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 particle 134. The third electrode 143 is located on the side of the light adjustment layer 190 close to the concave structure 132. The fourth electrode 144 is located on the side of the light adjustment layer 190 away from the concave structure 132, and the third electrode 143 is a light-transmitting electrode; the third electrode 143 and the fourth electrode 144 apply the first electric field or the second electric field to the light adjustment layer 190; when the first electrode 141 and the second electrode 142 apply the first electric field to the multiple first particles 134, the multiple first particles 134 transmit the light irradiated under the color resist 150; when the first electrode 141 and the second electrode 142 apply the second electric field to the first particles 134, the first particles 134 absorb the light irradiated under the color resist 150; when the third electrode 143 and the fourth electrode 144 apply the first electric field to the light adjustment layer 190, the light adjustment layer 190 reflects the light; when the third electrode 143 and the fourth electrode 144 apply the second electric field to the light adjustment layer 190, the light adjustment layer 190 absorbs the light.

[0050] This embodiment and Figure 1 What is different from the illustrated embodiment is that, in this embodiment, the upper and lower surfaces of the recessed portion 133 of the recessed structure 132 are totally reflective surfaces, while the other parts of the recessed structure 132 are still made of light-transmitting material; a plurality of first particles 134 are filled in the cavity surrounded by the recessed portion 133 and the color resist 150; a light adjustment layer 190 is also provided below the recessed structure 132, and a third electrode 143 and a fourth electrode 144 are provided on the upper and lower sides of the light adjustment layer 190, wherein the third electrode 143 is a light-transmitting electrode, and different voltages are applied to the upper and lower sides of the light adjustment layer 190 by using the third electrode 143 and the fourth electrode 144 to form different electric fields, thereby controlling the light adjustment layer 190 to switch between the two states of light reflection and light absorption.

[0051] It should be noted that the way the third electrode 143 and the fourth electrode 144 are connected to the signal is the same as Figure 1In the illustrated embodiment, the second electrode 142 and the third electrode 143 receive signals in the same manner: they are both connected to a driver chip via a control circuit. The driver chip outputs different current signals, generating different voltages and thus forming different electric fields. Since the driving methods are conventional, this application will not elaborate further. Since both the concave structure 132 and the light modulation layer 190 require electrodes to apply an electric field, to prevent a potential short circuit between the two, an insulating layer 145 can be provided between the electrodes between the light modulation layer 190 and the concave structure 132 to prevent short circuits.

[0052] In this embodiment, the visible light in the external environment can be understood as irradiating into the display block 180 in two parts, one part is irradiated into the color block 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 particle 134, the first particle 134 is in a light-transmitting state, and the third electrode 143 and the fourth electrode 144 apply a first electric field to the light adjustment layer 190, the light adjustment layer 190 reflects the light; a part of the light irradiated into the color block 150 will directly irradiate the blank area 170. The light that is incident on the first particles 134 in the light-transmitting state passes through the first particles 134 and is incident on the upper total reflection surface of the recessed portion 133. The light is then reflected by the total reflection surface of the recessed portion 133 toward the color resist 150 and is finally emitted from the color resist 150, thereby ensuring the normal color display of the color resist 150. Furthermore, since the total reflection surface of the recessed portion 133 semi-encloses the lower portion of the color resist 150, this part of the light will no longer be incident on the adjacent color resist 150, thereby preventing crosstalk to the adjacent color resist 150 and reducing color shift.

[0053] The other part of the light that shines into the blank area 170 is divided into two light parts. The first light part is irradiated toward the lower total reflection surface of the recessed portion 133. After the light is reflected by the lower total reflection surface of the recessed portion 133, since the lower total reflection surface of the recessed portion 133 is an outer arc surface, the light will be reflected toward the light adjustment layer 190 below the inner concave structure 132. At this time, the light adjustment layer 190 reflects the light under the action of the first electric field, so that the light irradiated by the light adjustment layer 190 is re-reflected toward the blank area 170 and finally emitted from the blank area 170. The second light part is the light directly toward the light adjustment layer 190. This part of the light will also be directly reflected by the light adjustment layer 190 toward the blank area 170 and finally emitted from the blank area 170. This can effectively increase the brightness of the display block 180, which is beneficial to improving the display effect.

[0054] Light between two adjacent concave structures 132 is reflected by the lower total reflection surfaces of the two adjacent recessed portions 133 and ultimately reflected toward the blank area 170 and emitted from the blank area 170, thereby increasing the brightness of the display block 180 without entering the area below the adjacent color filter 150. Therefore, no light crosstalk is caused to the adjacent color filter 150, and the normal display of the adjacent color filter 150 is not affected, which helps to reduce color shift.

[0055] When the first electrode 141 and the second electrode 142 apply a second electric field to the first particle 134, the first particle 134 is in a light-absorbing state, and when the third electrode 143 and the fourth electrode 144 apply a first electric field to the light adjustment layer 190, the light adjustment layer 190 absorbs the light; in this way, whether the light is irradiated into the color resist 150 or into the blank area 170, it can be absorbed by the first particle 134 and the light adjustment layer 190, so that the corresponding display block 180 does not display or is in a dark state. In this way, the color resist 150 of different colors can be flexibly controlled to emit light or not according to 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.

[0056] Specifically, the first particles 134 include electrochromic particles 138 . The electrochromic particles 138 are in a light-transmitting state under the action of a first electric field, and are in a black state under the action of a second electric field.

[0057] In this embodiment, the electrochromic particles 138 can be made of a tungsten trioxide (WO3)-titanium dioxide (TiO2) composite material, and the material can be transformed from a nearly transparent state to a dark black state by applying 3V-5V of electricity.

[0058] It should be noted that, in this embodiment, the first electric field is 0, that is, there is no electric field when no power is applied; the second electric field may be an electric field generated under the action of a voltage of 3V-5V.

[0059] 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 shines from above the color resist 150 into the bottom of the color resist 150, directly shining on the electrochromic particles 138, and penetrates from the electrochromic particles 138 to shine on the total reflection surface of the recessed portion 133. The light is reflected back toward the color resist 150 through 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.

[0060] When the electrochromic particles 138 are in a black state under the action of the second electric field, visible light in the external environment shines from the top of the color resist 150 into the bottom of the color resist 150, and directly shines on the electrochromic particles 138, and is absorbed by the electrochromic particles 138, so that the color resist 150 does not display; that is, by converting the electrochromic particles 138 from a light-transmitting state to a light-absorbing state under the action of different electric fields, the display block 180 is controlled to display or not to display, so as to adjust the display color, so that the display panel 100 can display different colors and improve the display effect.

[0061] Furthermore, the light adjustment layer 190 is filled with multiple electrophoretic particles 135, each electrophoretic particle 135 includes a first part 136 and a second part 137, the first part 136 is used to reflect light, and the second part 137 is used to absorb light. When the electrophoretic particle 135 is under the action of the first electric field, the first part 136 faces the color resist 150, and the second part 137 faces away from the color resist 150; when the electrophoretic particle 135 is under the action of the second electric field, the second part 137 faces the color resist 150, and the first part 136 faces away from the color resist 150.

[0062] The electrophoretic particle 135 in this embodiment can be formed by encapsulating black and white reflective charged materials in a microcapsule; the first part 136 of the electrophoretic particle 135 can be white, and the second part 137 can be black, and the white first part 136 is used to reflect light, and the black second part 137 is used to absorb light.

[0063] When the electrophoretic particle 135 is under the action of the first electric field, the white first portion 136 faces the color resist 150, while the black second portion 137 faces away from the color resist 150. When external visible light shines from the blank area 170 onto the total reflection surface of the recessed portion 133, the light is reflected by the recessed portion 133 to the light adjustment layer 190 and shines onto the first portion 136 of the electrophoretic particle 135 in the light adjustment layer 190. The white first portion 136 then reflects the light. After the light is continuously reflected by the first portions 136 of multiple first particles 134, it is finally emitted from the blank area 170, achieving high brightness while reducing the occurrence of color shift.

[0064] When the electrophoretic particle 135 is subjected to the second electric field, the black second portion 137 faces the color resist 150, while the white first portion 136 faces away from the color resist 150. When external visible light is irradiated from the blank area 170 to the total reflection surface of the recessed portion 133, the light is reflected by the recessed portion 133 to the light regulating layer 190 and irradiated to the second portion 137 of the electrophoretic particle 135 in the light regulating layer 190. The black second portion 137 absorbs the light. At the same time, the black second portion 137 also absorbs light from the external environment that directly irradiates the light regulating layer 190, thereby preventing the corresponding display block 180 from emitting light.

[0065] That is, the electrophoretic particles 135 in the light adjustment layer 190 of 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 of the first embodiment. This embodiment controls the rotation of the first part 136 and the second part 137 of the electrophoretic particle 135 with different charges by applying different voltages to the third electrode 143 and the fourth electrode 144, so that the first part 136 reflects light toward the display block 180 or the second part 137 absorbs light toward the display block 180.

[0066] In addition, in this embodiment, each color resist 150 is embedded in the film layer 120 and located at the opening of the recessed portion 133 ; the ends of two adjacent recessed portions 133 are spliced ​​together to form a blank area 170 .

[0067] This embodiment is different from the previous embodiment in that, in this embodiment, no additional black matrix 160 is provided. Instead, each color resist 150 is encapsulated in the film layer 120, and each color resist 150 is located at the opening of the recessed portion 133 corresponding to the concave structure 132. In this way, the original color resist 150 layer and the film layer 120 can be integrated into one layer, effectively reducing the thickness of the film layer, which is conducive to achieving a lightweight and thin display panel 100.

[0068] At the same time, the ends of the recessed portions 133 of two adjacent concave structures 132 are spliced ​​together to form a blank area 170, so that light in the external environment can normally pass through the blank area 170 and enter the bottom of the display block 180 without affecting the reflection or absorption of light by the first particles 134.

[0069] Figure 5 This is a schematic diagram of a third embodiment of the display panel of the present application, as shown in FIG. Figure 5 As shown, the bottom of the recessed portion 133 is a planar structure, the width of the recessed portion 133 is X, the depth of the recessed portion 133 is Y, and the two side walls of the recessed portion 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.

[0070] The present application is different from the above embodiment in that the present application improves the structure of the recessed portion 133. Since the side wall of the recessed portion 133 extends downward in a parabola and is connected to the bottom of the recessed portion 133, and the parabola satisfies the relationship formula X 2=2AY; wherein the bottom width of the recessed portion 133 may be 2A, and the top opening width of the recessed portion 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 the light. In this way, the display effect can be flexibly adjusted according to actual display requirements.

[0071] When the control component 140 applies the first electric field, the first particles 134 reflect the light irradiated to the bottom of the display block 180 toward the top of the display block 180. When the light irradiated from the external environment into the color resist 150 in the positive direction irradiates the bottom of the recessed portion 133, the first particles 134 can be evenly arranged along the bottom of the recessed portion 133 because the bottom of the recessed portion 133 is a flat structure. The light can be evenly reflected back to the color resist 150 through the bottom surface of the recessed portion 133, and then the color resist 150 is reflected by the color resist 150. The first particles 134 arranged along the sidewalls of the recessed portion 133 can effectively concentrate the light to the bottom of the recessed portion 133, thereby reflecting the light back toward the color resist 150 through the first particles 134 at the bottom of the recessed portion 133 and then being emitted through the color resist 150, which is beneficial to light utilization and increases the display brightness of the color resist 150.

[0072] Figure 6 This is a schematic diagram of an embodiment of the display device of the present application, as shown in FIG. Figure 6 As shown, the embodiment of the present application further discloses a display device 10, comprising a housing 200. The display device 10 also comprises the aforementioned display panel 100, which is disposed within the housing 200. The display panel 100 is mounted within the housing 200. The housing 200 is used to protect the display panel 100 from being easily damaged by external forces and to a certain extent prevent external moisture or dust from entering the interior of the display panel 100 and affecting the performance of the display panel 100, thereby helping to extend the service life of the display panel 100.

[0073] In the present application, the display panel 100 of the display device 10 is a display panel 100 with a color filter layer and an electronic paper mold combined structure. The display device 10 can be a display device such as a mobile phone, a tablet computer, etc., but is not limited to the devices listed above.

[0074] In a conventional display device 10 having a display panel 100 composed of a color filter layer and an electronic paper mold, light crosstalk easily occurs between adjacent color resists 150 when the display panel 100 is illuminated by natural light at a wide angle, thereby causing display color deviation and affecting the quality of the display device 10 .

[0075] Based on the above problems, the present application improves the traditional display panel 100. By setting a plurality of light processing structures 130 in the film layer 120, when the 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 resist 150, and then irradiate the light processing structure 130 from the display block 180; and 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 to the bottom of the display block 180 toward the top of the display block 180, so that the light below the display block 180 will not be reflected toward the display block 180. The areas corresponding to adjacent color resists 150 are illuminated and emitted by the adjacent color resists 150, thereby reducing the light crosstalk between the two adjacent color resists 150 and improving the problem of display color shift. On the other hand, the light can be used to increase the display brightness after being reflected above the display block 180. 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 resist 150 does not emit light. In this way, the color resists 150 of different colors can be flexibly controlled to emit or not emit light according to actual display requirements, forming different display color combinations, which is beneficial to improving the display effect.

[0076] It should be noted that the inventive concept of this application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the various embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the various embodiments or technical features are combined, the original technical effects will be enhanced.

[0077] The above content is a further detailed description of the present application in conjunction with specific optional implementation methods, and the specific implementation of the present application cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, they can make several simple deductions or substitutions without departing from the concept of the present application, which should be considered to fall within the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The device comprises a membrane layer, wherein the membrane layer comprises a plurality of light processing structures, each of the light processing structures comprises a light processing component and a control component, wherein 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; A color block is disposed above each of the light processing components. Two adjacent color blocks are spaced apart, and a blank area is disposed between the two adjacent color blocks. The blank area is used to transmit visible light from the external environment. The color block 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 toward 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; The light processing component includes a concave structure and a plurality of first particles, wherein the concave structure is made of a light-transmitting material; the concave structure includes a recessed portion, which surrounds a space below the color resist corresponding to the concave structure; and 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 arranged on opposite left and right sides of the concave structure; the first electrode and the second electrode are used to apply a first electric field or a second electric field to both ends of the first particle; 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 light irradiated below the display block toward 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; The first particles include electrophoretic particles, each of which includes a first portion and a second portion, the first portion being used to reflect light, and the second portion being used to absorb light, and when the electrophoretic particles are subjected to the first electric field, the first portion faces the color resist, and the second portion faces away from the color resist; When the electrophoretic particle is under the action of the second electric field, the second portion faces the color resist, and the first portion faces away from the color resist; 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 parabola, and the parabola satisfies the relationship: X 2 =2AY; where A is a constant and A is greater than 0.

2. The display panel according to claim 1, wherein: The first portion and the second portion have different charge polarities; In a first electric field state, the polarities of the first electrode and the second electrode are the same as the charge polarity of the first portion and opposite to the charge polarity of the second portion; 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 portion and opposite to the charge polarity of the first portion.

3. The display panel according to claim 2, wherein: A plurality of color resists are located above the film layer, a black matrix is ​​provided between two adjacent color resists, and the blank area is located between the black matrix and the color resists.

4. A display device comprising a housing, characterized in that: The display device further includes a display panel according to any one of claims 1 to 3, wherein the display panel is disposed in the housing.

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