Display panel and display device

Abstract

The invention provides a display panel and a display device.The display panel comprises an array substrate, a color film substrate and a liquid crystal layer, the array substrate comprises an extending display area, a connecting area and a variable display area, the connecting area is provided with a reflecting groove, the variable display area is provided with a pixel layer and a reflecting layer, the pixel layer comprises a plurality of pixel points, and the reflecting layer is arranged between the pixel points. The reflecting groove and the reflecting layer reflect light emitted by the backlight module to the pixel points through two times of reflection, the pixel points can emit the received light as light of the corresponding color when being powered on, so that the variable display area is switched to the display area, the display panel does not have a non-display area, the attractiveness of the display panel is improved, the display area is expanded, and the display effect is improved. The variable display area is switched to the non-display area when the pixel points are not electrified, the electric signals can be correspondingly controlled to be output to the pixel points according to display requirements, the display states of the variable display area and the display panel can be switched, and the display diversity of the display panel is improved.

Description

Technical Field

[0001] This invention belongs to the field of display panel technology, and particularly relates to a display panel and a display device. Background Technology

[0002] Liquid crystal display panels have advantages such as high resolution, accurate color reproduction, simple structure, and high stability. Traditional liquid crystal display panels control the amount of polarized light passing through by controlling the deflection of liquid crystals to achieve different grayscale displays.

[0003] Among them, such as Figure 1 As shown, the display panel 100 includes a stacked color filter substrate 20, a liquid crystal layer 30, and an array substrate 10. It may also include a lower polarizer 50 and an upper polarizer 40. The array substrate 10 is provided with a display area AA and a non-display area F1. The display area AA is provided with a first substrate and a first conductive layer. The first conductive layer is provided with corresponding data lines, scan lines, and a pixel array. The pixel array is composed of pixel electrodes arranged in an array. The color filter substrate 20 is provided with the display area. The color filter substrate includes a corresponding second substrate 21, a second conductive layer, and a color filter layer 22. The second conductive layer is provided with a corresponding common electrode. The common electrode, the pixel electrode, and the liquid crystal layer 30 form a pixel unit. The pixel unit displays corresponding image information according to the received line scan signal and data signal and the light provided by the backlight module.

[0004] The current display panel 100 is usually a product with no border on three or four sides, which cannot completely eliminate the non-display area F1, resulting in black borders at the edges of the display panel 100, which affects the aesthetics and wastes display area. Summary of the Invention

[0005] The purpose of this invention is to provide a display panel that solves the problem of wasted display area due to non-display areas at the edges of traditional display panels.

[0006] A first aspect of the present invention provides a display panel, comprising: Color filter substrate, used to receive light from the backlight module and emit light of the corresponding color; An array substrate, the array substrate including a display area, a connection area and a variable display area extending along a first direction, the connection area and the display area being disposed relative to the color filter substrate; The connection area forms a reflective groove, which is used to reflect the light emitted from the backlight module to the variable display area; The variable display area includes a reflective layer and a pixel layer disposed opposite to each other along a second direction. The reflective layer is used to receive light reflected by the reflective groove and reflect it again to the pixel layer. The pixel layer includes a plurality of pixels. When the pixels are powered, they emit the received light as light of the corresponding color and display black when they are not powered. The first direction and the second direction intersect. A liquid crystal layer is disposed between the color filter substrate and the display area.

[0007] Optionally, the display panel further includes an upper polarizer and a lower polarizer, wherein the upper polarizer is stacked on the side of the array substrate facing away from the color filter substrate, and the lower polarizer is stacked on the side of the color filter substrate facing away from the array substrate. The array substrate includes a first substrate, a first conductive layer, and a first passivation layer stacked sequentially along a second direction; The pixel layer located in the variable display area is stacked on the first conductive layer, the pixel is connected to the first conductive layer, and the reflective layer is disposed on the side of the first passivation layer facing away from the first substrate; The first passivation layer located in the connection area forms the reflective groove facing the first substrate, and the inner wall of the reflective groove is provided with a first reflective coating.

[0008] Optionally, the pixel includes a first electrode, a second electrode, and an elastic sub-pixel located between the first electrode and the second electrode; The elastic sub-pixel includes a deformable capsule and a color-developing layer and a half-wave plate disposed within the deformable capsule. The half-wave plate is disposed close to the first conductive layer, and the color-developing layer is disposed away from the first conductive layer. The deformable capsule deforms and stretches the color-developing layer and the half-wave plate along the first direction when the first electrode and the second electrode are powered on, and aggregates into a spherical capsule when not powered on. When the color-developing layer undergoes deformation, it receives light and emits light of the corresponding color to the half-wave plate. The half-wave plate is used to polarize the received light rays at an angle equal to the polarization angle of the upper polarizer and then project them onto the upper polarizer.

[0009] Optionally, the pixel includes a first electrode, a second electrode, and a color-developing layer and an electro-optic phase modulator located between the first electrode and the second electrode; The color-developing layer is disposed close to the first conductive layer, and the electro-optic phase modulator is disposed away from the first conductive layer. The electro-optic phase modulator is used to shift the angle of the received light when the first electrode and the second electrode are powered on and to emit polarized light with the same polarization angle as the upper polarizer to the color rendering layer, and to emit polarized light with the polarization angle perpendicular to the polarization angle of the upper polarizer to the color rendering layer when not powered on. The color rendering layer receives light and emits light of the corresponding color to the upper polarizer.

[0010] Optionally, the reflective layer includes a plurality of serrated reflective structures, the protrusions of which face the first substrate.

[0011] Optionally, the reflective groove is a right-angled triangle, the reflective structure is a right-angled triangle, the first right-angled surface of the reflective groove receives the light emitted from the backlight module and emits the light to the inclined surface of the reflective groove, the inclined surface of the reflective groove reflects the light to the second right-angled surface of the reflective groove, the second right-angled surface of the reflective groove projects the light to the inclined surface of the reflective structure, and the inclined surface of the reflective structure reflects the light to the pixel layer.

[0012] Optionally, the display panel further includes: The second reflective coating is stacked on the outside of the first passivation layer in the variable display area, facing away from the first substrate.

[0013] Optionally, the color filter substrate is disposed opposite to the display area; The color filter substrate includes a second substrate, a color filter layer, a second conductive layer, and a second passivation layer stacked sequentially along a third direction. The second substrate includes a first light-transmitting area corresponding to the connection area and a second light-transmitting area corresponding to the display area. The first light-transmitting area is used to transmit light emitted from the backlight module to the reflective groove, and the second light-transmitting area is used to transmit light emitted from the backlight module to the color filter layer. The third direction is opposite to the second direction.

[0014] Optionally, the display panel further includes: A light guide channel is disposed between the first light-transmitting area and the connecting area, and the light guide channel is formed by a black matrix.

[0015] A second aspect of the present invention provides a display device including a backlight module and a display panel as described above, wherein the backlight module is disposed opposite to the display panel.

[0016] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows: The above-mentioned display panel includes an array substrate, a color filter substrate, and a liquid crystal layer. The array substrate includes an extended display area, a connection area, and a variable display area. The connection area is provided with a reflective groove. The variable display area is provided with a pixel layer and a reflective layer. The pixel layer includes multiple pixels. The reflective groove and the reflective layer reflect the light emitted from the backlight module to the pixels through two reflections. When the pixels are powered, they can emit the received light as light of the corresponding color, thereby switching the variable display area to a display area. The display panel has no non-display area, which improves the aesthetics of the display panel and expands the display area. When the pixels are not powered, they display black, thereby switching the variable display area to a non-display area. According to the display requirements, the output electrical signal can be controlled to each pixel, thereby switching the display state of the variable display area and the display panel, and improving the display diversity of the display panel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a traditional display panel; Figure 2 This is a schematic diagram of a first structure of a display panel provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of a second structure of the display panel provided in Embodiment 1 of the present invention; Figure 4 This is a partially enlarged schematic diagram of the pixel, reflection groove, and reflection layer provided in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the first structure of a pixel provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the second structure of a pixel provided in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the light polarization of a half-wave plate provided in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the third structure of a pixel provided in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the angle of the reflective groove provided in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the display device provided in Embodiment 1 and Embodiment 2 of the present invention.

[0018] The figures in the diagram are labeled as follows: 100, Display panel; 200, Backlight module; 10, Array substrate; 20, Color filter substrate; 30, Liquid crystal layer; 40, Upper polarizer; 50, Lower polarizer; 101, First substrate; 102, First conductive layer; 103, First passivation layer; 21, Second substrate; 22, Color filter layer; 23, Second conductive layer; 24, Second passivation layer; 11, Pixel layer; 12, Reflective layer; 13, Reflective groove; 14, Light guide channel; 15, Black matrix; 16, Second reflective coating; 111, Pixel; 121, Reflective structure; 131, First reflective coating; 112, First electrode; 113, Second electrode; 114, Elastic sub-pixel; 115, Insulating layer; 1, Deformable capsule; 2, Half-wave plate; 3, Color rendering layer; 4, Electro-optic phase modulator; F1, Non-display area; AA, Display area; BA, Variable display area; CB, Connection area; LE1, First light-transmitting area; LE2, Second light-transmitting area; X1, First direction; X2, Second direction; X3, Third direction; aa, Local magnified view. Detailed Implementation

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Example 1 A first aspect of the present invention provides a display panel 100, such as... Figure 10 As shown, the display panel 100 and the backlight module 200 are arranged opposite to each other. The backlight module 200 provides a backlight source. The light is emitted to the display panel 100 and emitted as light of the corresponding color through the display panel 100, and is presented as the corresponding image information.

[0024] like Figure 2 As shown, in this embodiment, the display panel 100 includes: The color filter substrate 20 is used to receive light from the backlight module 200 and emit light of the corresponding color. The array substrate 10 includes a display area AA, a connection area CB, and a variable display area BA extending along a first direction X1. The connection area CB and the display area AA are disposed relative to the color filter substrate 20. The connecting area CB forms a reflective groove 13, which is used to reflect the light emitted from the backlight module 200 to the variable display area BA; The variable display area BA includes a reflective layer 12 and a pixel layer 11 disposed opposite to each other along the second direction X2. The reflective layer 12 is used to receive the light reflected by the reflective groove 13 and reflect it again to the pixel layer 11. The pixel layer 11 includes a plurality of pixels 111. When the pixels 111 are powered, they emit the received light as light of the corresponding color and display black when they are not powered. The first direction X1 and the second direction X2 intersect. The liquid crystal layer 30 is disposed between the color filter substrate 20 and the display area AA.

[0025] In this embodiment, the display area AA and the connection area CB of the array substrate 10 are set corresponding to the color filter substrate 20 to form a normal display area. The color filter substrate 20 receives the light emitted from the backlight module 200 and emits light of the corresponding color, such as red light, blue light and green light, after passing through the color filter substrate 20. At the same time, a driving voltage is applied between the array substrate 10 and the color filter substrate 20 to drive the liquid crystal to deflect. The corresponding color light of the display area is emitted to the array substrate 10 through the corresponding deflected liquid crystal and emitted to the outside through the array substrate 10, thereby displaying the corresponding image information.

[0026] The connecting area CB connects the display area AA and the variable display area BA. The connecting area CB is provided with a reflective groove 13. The two sides of the array substrate 10 of the variable display area BA are respectively provided with a reflective layer 12 and a pixel layer 11, wherein the pixel layer 11 is close to the light-emitting surface of the variable display area BA, and the reflective layer 12 is far from the light-emitting surface of the variable display area BA. Figure 3As shown, the reflective groove 13 has a reflective surface. The reflective surface receives the light emitted from the backlight module 200 and emits the light to the reflective layer 12 after one reflection. The reflected light from the reflective groove 13 covers the reflective layer 12. After a second reflection, the reflective layer 12 reflects the light to the pixel 111 of the pixel layer 11.

[0027] Each pixel 111 of the pixel layer 11 is directly connected to the external driving circuit or connected to the external driving circuit through the corresponding conductive layer on the array substrate 10. Each pixel 111 switches to two different forms depending on the presence or absence of an electrical signal. When expanding the display area of ​​the display panel 100, an electrical signal is applied to the pixel 111 of the variable display area BA of the array substrate 10 through the driving circuit. When the pixel 111 receives the electrical signal, it manifests as a corresponding filter layer and converts the light reflected by the reflective layer 12 into light of the corresponding color and emits it to the outside, thereby displaying the corresponding image information. This switches the variable display area BA to the display area, and the display panel 100 does not have a non-display area F1. That is, the display panel 100 is formed as a borderless display panel 100, which improves the aesthetics of the display panel 100 and expands the display area AA.

[0028] When the variable display area BA is switched to a non-display area, the driving circuit can cut off the output electrical signal to the pixel 111. When the pixel 111 does not receive an electrical signal, it appears black, and the variable display area BA is switched to a non-display area, and the display panel 100 forms a framed display panel 100.

[0029] According to the display requirements, the output electrical signal can be controlled to each pixel 111, thereby switching the display state of the variable display area BA and the display panel 100, and improving the display diversity of the display panel 100.

[0030] In an optional embodiment, the display panel 100 further includes an upper polarizer 40 and a lower polarizer 50. The upper polarizer 40 is stacked on the side of the array substrate 10 facing away from the color filter substrate 20, and the lower polarizer 50 is stacked on the side of the color filter substrate 20 facing away from the array substrate 10. The lower polarizer 50 converts the light emitted by the backlight module 200 into polarized light, and its polarization direction is perpendicular to the polarized light after liquid crystal electromodulation. The upper polarizer 40 is used to analyze the light polarized by the lower polarizer 50, and achieves brightness contrast through liquid crystal modulation to form the final display image. The polarization angles of the lower polarizer 50 and the upper polarizer 40 are perpendicular.

[0031] The array substrate 10 and the color filter substrate 20 may have different or the same structures in the variable display area BA and the display area AA. In an optional embodiment, such as... Figure 2 and Figure 3As shown, the array substrate 10 includes a first substrate 101, a first conductive layer 102 and a first passivation layer 103 stacked sequentially along the second direction X2; The pixel layer 11 located in the variable display area BA is stacked on the first conductive layer 102, the pixel 111 is connected to the first conductive layer 102, and the reflective layer 12 is disposed on the side of the first passivation layer 103 facing away from the first substrate 101. A first passivation layer 103 located in the connection area CB forms a reflective groove 13 facing the first substrate 101, and a first reflective coating 131 is provided on the inner wall of the reflective groove 13.

[0032] The color filter substrate 20 is positioned opposite to the display area AA; The color filter substrate 20 includes a second substrate 21, a color filter layer 22, a second conductive layer 23, and a second passivation layer 24, which are sequentially stacked along the third direction X3. The second substrate 21 includes a first light-transmitting area LE1 corresponding to the connection area CB and a second light-transmitting area LE2 corresponding to the display area AA. The first light-transmitting area LE1 is used to transmit the light emitted from the backlight module 200 to the reflective groove 13, and the second light-transmitting area LE2 is used to transmit the light emitted from the backlight module 200 to the color filter layer 22. The third direction X3 is opposite to the second direction X2.

[0033] In this embodiment, the first conductive layer 102 may include a driving circuit layer and a pixel electrode layer stacked together. The driving circuit layer is stacked on the first substrate 101 and includes multiple data lines, multiple scan lines, and an array of thin-film transistors. The thin-film transistors are connected to a corresponding data line and a scan line. The scan line is used to input a horizontal scan signal, and the data line is used to input a data signal. The pixel electrode layer includes multiple pixel electrodes arranged in an array. Each pixel electrode is connected to a thin-film transistor. The pixel electrode and the corresponding thin-film transistor are set to the corresponding display area AA. When the thin-film transistor receives a horizontal scan signal, it turns on and writes a data signal. The data signal is transmitted to the pixel electrode through the thin-film transistor.

[0034] The second conductive layer 23 includes a common electrode layer, which forms a liquid crystal capacitor with each pixel electrode. The thin film transistor and the liquid crystal capacitor form a single sub-pixel. The common electrode layer is used to input the common electrode voltage. The common electrode voltage and the data signal form a driving voltage and drive the liquid crystal in the liquid crystal layer 30 to deflect at the position of the corresponding display area AA.

[0035] To avoid direct contact between the liquid crystal and the conductive layer, the array substrate 10 also includes a first passivation layer 103, which is stacked on the first conductive layer 102, i.e., stacked on the pixel electrode layer. The color filter substrate 20 also includes a second passivation layer 24, which is stacked on the second driving layer. The first passivation layer 103 and the second passivation layer 24 are disposed opposite to each other and in contact with the liquid crystal layer 30. A transparent hydrophobic layer can be disposed on the surface of the first passivation layer 103 and the second passivation layer 24, thereby realizing the separation and protection of the liquid crystal layer 30 and the conductive layer.

[0036] The color filter layer 22 is used to form red, green, and blue resists and corresponding light-shielding layers. The second light-transmitting area LE2 emits light to the color filter layer 22. The color resists are used to receive the natural light after the liquid crystal is deflected and form red, blue, and green light of the corresponding colors respectively. The color resists can be color resists of the corresponding colors, such as red, blue, and green color resists. The color resists are set correspondingly to the pixel electrodes. The pixel electrodes and the common electrode form a driving voltage and drive the liquid crystal in the liquid crystal layer 30 at the position corresponding to the display area AA. The light output by the liquid crystal deflection can be emitted to the outside through the color resist and form light of the corresponding color.

[0037] The light-shielding layer is placed between the color blocks. By blocking the backlight light outside the pixel opening area, it avoids light leakage in non-display areas, thereby improving the overall contrast of the screen. At the same time, the light-shielding layer is also used to separate sub-pixels of different colors, prevent color cross-contamination, ensure the purity and accuracy of color display, and reduce ambient light incident on the sub-pixels.

[0038] The reflective groove 13, the reflective layer 12, and the pixel layer 11 are all disposed within the first passivation layer 103, such as Figure 3 As shown, a reflective groove 13 is disposed on the first passivation layer 103 of the connection area CB. The reflective groove 13 forms a groove facing the first substrate 101, and a corresponding first reflective coating 131 is formed on the inner wall of the groove. The inner wall coated with the first reflective coating 131 forms a reflective surface and reflects the light emitted from the backlight module 200 to the reflective layer 12. The two sides of the first passivation layer 103 of the variable display area BA are respectively provided with a reflective layer 12 and a pixel layer 11. The pixel layer 11 located in the variable display area BA is stacked on the first conductive layer 102, and the pixel point 111 is connected to the first conductive layer 102. The reflective layer 12 is disposed on the inner side of the first passivation layer 103 facing away from the first substrate 101 and away from the light-emitting surface of the variable display area BA, as shown. Figure 4 As shown, Figure 4 for Figure 3 A magnified schematic diagram of a pixel, a reflective groove, and a reflective layer is shown in Figure aa. Polarized light transmitted through the first light-transmitting area LE1 is emitted to the reflective groove 13. After one reflection, the light is emitted to the reflective layer 12. After a second reflection, the reflective layer 12 reflects the light to the pixel 111 of the pixel layer 11.

[0039] Each pixel 111 of the pixel layer 11 is directly connected to the first conductive layer 102. The first conductive layer 102 is connected to an external driving circuit. The pixel 111 can receive corresponding electrical signals through the first conductive layer 102. The first conductive layer 102 located in the variable display area BA may include a driving circuit layer. The driving circuit layer includes multiple data lines, multiple scan lines, and an array of thin-film transistors. The thin-film transistors are connected to a corresponding data line and a scan line. The scan line is used to input a horizontal scan signal, and the data line is used to input a data signal. The thin-film transistors are also connected to the pixel 111. When the corresponding data signal and horizontal scan signal are input to the first conductive layer 102 of the variable display area BA, the pixel 111 can receive the corresponding data signal and thus switch to different display modes.

[0040] Among them, pixel 111 can be selected with corresponding variable materials or devices as needed, and can present different display states according to the switching of electrical signals.

[0041] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, pixel 111 includes a first electrode 112, a second electrode 113, and an elastic sub-pixel 114 located between the first electrode 112 and the second electrode 113; The elastic sub-pixel 114 includes a deformable capsule 1 and a color-developing layer 3 and a half-wave plate 2 disposed within the deformable capsule 1. The half-wave plate 2 is disposed close to the first conductive layer 102, and the color-developing layer 3 is disposed away from the first conductive layer 102. When the first electrode 112 and the second electrode 113 are energized, the deformable capsule 1 deforms and stretches the color-developing layer 3 and the half-wave plate 2 along the first direction X1, and aggregates into a spherical capsule when not energized. When the color layer 3 deforms, it receives light and emits light of the corresponding color to the half-wave plate 2; The half-wave plate 2 is used to polarize the received light rays at the angle of the upper polarizer 40 and then output the light rays to the upper polarizer 40.

[0042] In this embodiment, the first electrode 112 and the second electrode 113 of pixel 111 are correspondingly connected to the first conductive layer 102. The deformable capsule 1 is a charged capsule, and pixel 111 can operate in two display modes, such as... Figure 5As shown, when the driving circuit does not output an electrical signal to the first electrode 112 and the second electrode 113 of the pixel 111 through the first conductive layer 102, no driving voltage is formed between the first electrode 112 and the second electrode 113, the deformation capsule 1 does not deform and aggregates into a sphere. The polarized light from the lower polarizer 50 is reflected twice and emitted to the pixel 111. The light does not pass through the half-wave plate 2 and does not change the polarization angle of the light. At this time, the polarization angle of the light is consistent with the direction of the absorption axis of the upper polarizer 40. The light is absorbed and cannot be emitted, and the pixel 111 displays a black image.

[0043] When the first electrode 112 and the second electrode 113 of pixel 111 receive electrical signals through the first conductive layer 102, such as Figure 6 As shown, a driving voltage is formed between the first electrode 112 and the second electrode 113. The deformable capsule 1 deforms and stretches the half-wave plate 2 and the color-developing layer 3. The color-developing layer 3 displays the corresponding color and can be composed of corresponding deformable color resists. Polarized light passes through the color-developing layer 3 and is emitted as light of the corresponding color, and then passes through the half-wave plate 2, such as... Figure 7 As shown, the half-wave plate 2 uses a birefringent crystal to deflect the polarization angle of polarized light by 90°. The polarization angle of the light after being polarized by the half-wave plate 2 is the same as the angle of the transmission axis of the upper polarizer 40. The light passes through the half-wave plate 2 and the upper polarizer 40 and is emitted to the outside, displaying the corresponding image information.

[0044] In this embodiment, the first electrode 112 and the second electrode 113 are used to receive voltages of opposite polarity. In an optional embodiment, the first electrode 112 is a positive electrode and the second electrode 113 is a negative electrode. The first electrode 112 is used to input the driving voltage and the second electrode 113 is used to input the ground signal. In order to simplify the structure of the pixel layer 11, adjacent pixels 111 share a middle electrode, that is, the first electrode 112 and the second electrode 113 are alternately arranged in sequence, and an elastic sub-pixel 114 is arranged between adjacent first electrodes 112 and second electrodes 113.

[0045] In order to prevent the electrical signal received by the deformable capsule 1 from the display area AA from flowing away, in an optional embodiment, an insulating layer 115 is also provided between the first electrode 112 and the second electrode 113. The insulating layer 115 and the first electrode 112 and the second electrode 113 surround to form a cavity, and the deformable capsule 1 moves within the cavity.

[0046] In another alternative embodiment, such as Figure 8 As shown, pixel 111 includes a first electrode 112, a second electrode 113, a color development layer 3 and an electro-optic phase modulator 4 located between the first electrode 112 and the second electrode 113; The color development layer 3 is positioned close to the first conductive layer 102, and the electro-optic phase modulator 4 is positioned away from the first conductive layer 102. The electro-optic phase modulator 4 is used to shift the angle of the received light when the first electrode 112 and the second electrode 113 are powered on, and to emit polarized light with the same polarization angle as the upper polarizer 40 to the color development layer 3, and to emit polarized light with the polarization angle perpendicular to the polarization angle of the upper polarizer 40 to the color development layer 3 when not powered on. The color developing layer 3 receives light and emits light of the corresponding color to the upper polarizer 40.

[0047] In this embodiment, the electro-optic phase modulator 4 can be made of materials such as LiNbO3, KD*P, and BBO. Under the control of the electric field, the electro-optic phase modulator 4 can deflect the polarization angle of the deflected light by 90°. That is, when the first electrode 112 and the second electrode 113 of the pixel 111 receive an electrical signal through the first conductive layer 102, a driving voltage is formed between the first electrode 112 and the second electrode 113. The electro-optic phase modulator 4 is charged and deflects the polarization angle of the polarized light reflected by the reflective layer 12 by 90°. The polarization angle of the light after being polarized by the electro-optic phase modulator 4 is the same as the angle of the transmission axis of the upper polarizer 40. The light passes through the color rendering layer 3 to present the corresponding color and is emitted to the outside through the upper polarizer 40 to display the corresponding image information.

[0048] Since no driving voltage is formed between the first electrode 112 and the second electrode 113, the electro-optic phase modulator 4 does not deflect the polarization angle and does not change the polarization angle of the light. At this time, the polarization angle of the light is consistent with the direction of the absorption axis of the upper polarizer 40, the light is absorbed and cannot be emitted, and the pixel 111 displays a black image.

[0049] The reflective layer 12 and the reflective groove 13 can be provided with corresponding reflective surfaces, reflective films, and other structures. In an optional embodiment, such as... Figure 4 As shown, the reflective layer 12 includes a plurality of sawtooth-shaped reflective structures 121, with the protrusions of the reflective structures 121 facing the first substrate 101.

[0050] The reflective groove 13 is a right-angled triangle, and the reflective structure 121 is a right-angled triangle. The first right-angled surface of the reflective groove 13 receives the light emitted from the backlight module 200 and emits the light to the inclined surface of the reflective groove 13. The inclined surface of the reflective groove 13 reflects the light to the second right-angled surface of the reflective groove 13. The second right-angled surface of the reflective groove 13 projects the light to the inclined surface of the reflective structure 121. The inclined surface of the reflective structure 121 reflects the light to the pixel layer 11.

[0051] In this embodiment, both the reflective groove 13 and the reflective structure 121 are right-angled triangles. The inclined surfaces of the reflective groove 13 and the reflective structure 121 serve as reflective surfaces. The light emitted from the lower polarizer 50 is reflected by the inclined surface of the reflective groove 13 to the inclined surface of the reflective structure 121, and then reflected again by the inclined surface of the reflective structure 121 to the pixel 111. The pixel 111 switches to different display modes according to its charging state, and deflects or maintains the polarization angle of the current light accordingly, and displays the corresponding image information or displays a black screen.

[0052] The angle between the reflective groove 13 and the first substrate 101 needs to be determined based on the depth H of the reflective groove 13 and the length L of the reflective layer 12 extending along the first direction X1. For example, a length L of approximately 5 mm and a groove depth of 0.3 mm are considered safe dimensions. Figure 9 As shown, X1=X2, X2+A=90°, A+Y=90°, X2=Y=X1, tanZ=0.3 / 5=0.06, Z=3.43°, X1+X2+Z=90°, 2X1=90-Z=86.57°, X1=X2=Y=43.285°. Therefore, the optimal reflection angle for the reflective groove 13 is approximately 43°.

[0053] Where Y is the angle between the incident surface and the inclined surface of the reflective groove 13, A is the angle between the emitting surface and the inclined surface of the reflective groove 13, X2 is the angle between the normal of the reflective groove 13 and the emitting surface of the reflective groove 13, X1 is the angle between the hypotenuse and the normal of the triangle formed by the length and depth, and Z is the angle between the length and the hypotenuse of the triangle formed by the length and depth.

[0054] Correspondingly, the reflective structure 121 can be a similar triangle to the reflective groove 13, with each angle corresponding to the same angle of the reflective groove 13.

[0055] Furthermore, to prevent ambient light from directly incident on the variable display area BA, in an optional embodiment, such as Figure 3 As shown, the display panel 100 also includes: The second reflective coating 16 is stacked on the outer side of the first passivation layer 103 of the variable display area BA facing away from the first substrate 101. The second reflective coating 16 is used to reflect external ambient light, prevent external ambient light from incident on the pixel layer 11, and prevent bright spots from appearing when the variable display area BA switches to a display area or a non-display area, thus affecting the display effect.

[0056] In another alternative embodiment, to improve the transmission efficiency of light, as in one alternative embodiment, such as Figure 2 As shown, the display panel 100 also includes: The light guide channel 14 is located between the first light-transmitting area LE1 and the connecting area CB, and the light guide channel 14 is formed by a black matrix 15.

[0057] In this embodiment, a corresponding size is reserved at the edge of the color filter substrate 20 as the first light-transmitting area LE1, and a black matrix 15 is set along the third direction X3 between the first light-transmitting area LE1 and the connecting area CB. The black matrix 15 surrounds and forms a light guide channel 14. The light emitted from the lower polarizer 50 is transmitted to the reflective groove 13 through the light guide channel 14, reducing light scattering to the liquid crystal layer 30 or the display area AA and improving the light transmission efficiency. At the same time, the black matrix near the display area AA can also be used as an encapsulation structure to encapsulate the liquid crystal layer 30.

[0058] The beneficial effects of this invention embodiment compared with the prior art are as follows: The display panel 100 includes an array substrate 10, a color filter substrate 20, and a liquid crystal layer 30. The array substrate 10 includes an extended display area AA, a connection area CB, and a variable display area BA. The connection area CB is provided with a reflective groove 13. The variable display area BA is provided with a pixel layer 11 and a reflective layer 12. The pixel layer 11 includes a plurality of pixels 111. The reflective groove 13 and the reflective layer 12 reflect the light emitted from the backlight module 200 to the pixels 111 through two reflections. When powered, the received light can be emitted as light of the corresponding color, thereby switching the variable display area BA to a display area. The display panel 100 does not have a non-display area F1, which improves the aesthetics of the display panel 100 and expands the display area AA. When the pixel 111 is not powered, it displays black, thereby switching the variable display area BA to a non-display area. According to the display requirements, the output electrical signal can be controlled to each pixel 111, thereby switching the display state of the variable display area BA and the display panel 100, and improving the display diversity of the display panel 100.

[0059] Example 2 A second aspect of the present invention provides a display device, such as... Figure 10 As shown, the display device includes a backlight module 200 and a display panel 100. The specific structure of the display panel 100 is as described in the above embodiments. Since this display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The backlight module 200 and the display panel 100 are arranged opposite to each other.

[0060] The display device may also include a corresponding driving circuit, which may include a panel driving circuit, a corresponding source driving circuit, a gate driving circuit, and a timing controller. The source driving circuit is connected to the data line of the array substrate 10 of the display panel 100 and provides data signals. The gate driving circuit is connected to the scan line of the array substrate 10 and provides line scanning signals. The timing controller is connected to the source driving circuit and the gate driving circuit respectively and drives and controls the source driving circuit and the gate driving circuit to work.

[0061] The driving circuit may also include a corresponding backlight driving circuit, which is connected to the backlight module 200 and controls the backlight module 200 to provide a backlight source when the display panel 100 is displaying.

[0062] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A display panel, characterized by, The display panel comprises: a color film substrate for receiving light from a backlight module and emitting light of corresponding color; an array substrate comprising a display area, a connecting area and a variable display area extending along a first direction, the connecting area and the display area being arranged opposite to the color film substrate; the connecting area forms a reflection groove for reflecting light emitted by the backlight module to the variable display area; the variable display area comprises a reflection layer and a pixel layer arranged opposite along a second direction, the reflection layer being used for receiving light reflected by the reflection groove and reflecting to the pixel layer again, the pixel layer comprising a plurality of pixel points, the pixel points emitting received light as light of corresponding color when powered and displaying black when unpowered, the first direction and the second direction intersecting; a liquid crystal layer arranged between the color film substrate and the display area.

2. The display panel of claim 1, wherein, The display panel further comprises an upper polarizer and a lower polarizer, the upper polarizer being laminated on a side of the array substrate away from the color film substrate, and the lower polarizer being laminated on a side of the color film substrate away from the array substrate; the array substrate comprises a first substrate, a first conductive layer and a first passivation layer laminated in sequence along the second direction; the pixel layer in the variable display area is laminated on the first conductive layer, the pixel points are connected to the first conductive layer, and the reflection layer is arranged on a side of the first passivation layer away from the first substrate; the first passivation layer in the connecting area forms the reflection groove toward the first substrate, and a first reflection coating is arranged in an inner wall of the reflection groove.

3. The display panel of claim 2, wherein, The pixel point comprises a first electrode, a second electrode and an elastic sub-pixel between the first electrode and the second electrode; the elastic sub-pixel comprises a deformation capsule, a color developing layer and a half-wave plate arranged in the deformation capsule, the half-wave plate being arranged close to the first conductive layer, the color developing layer being arranged away from the first conductive layer, the deformation capsule generating deformation and stretching the color developing layer and the half-wave plate along the first direction when powered on the first electrode and the second electrode, and being aggregated as a spherical capsule when unpowered; the color developing layer receives light and emits light of corresponding color to the half-wave plate when generating deformation; the half-wave plate is used for polarizing the angle of received light to the polarization angle of the upper polarizer and emitting to the upper polarizer.

4. The display panel of claim 2, wherein, The pixel point comprises a first electrode, a second electrode and a color developing layer and an electro-optical phase modulator between the first electrode and the second electrode; the color developing layer is arranged close to the first conductive layer, and the electro-optical phase modulator is arranged away from the first conductive layer; the electro-optical phase modulator is used for phase-shifting the angle of received light when powered on the first electrode and the second electrode and emitting polarized light with the polarization angle same as the polarization angle of the upper polarizer to the color developing layer, and emitting polarized light with the polarization angle perpendicular to the polarization angle of the upper polarizer to the color developing layer when unpowered; the color developing layer receives light and emits light of corresponding color to the upper polarizer.

5. The display panel of claim 2, wherein, The reflection layer comprises a plurality of sawtooth-shaped reflection structures, convex portions of the reflection structures facing the first substrate.

6. The display panel of claim 5, wherein, The reflection groove is a right triangle, the reflection structure is a right triangle, a first right face of the reflection groove receives light emitted by the backlight module and emits the light to an inclined face of the reflection groove, the inclined face of the reflection groove reflects the light to a second right face of the reflection groove, the second right face of the reflection groove projects the light to an inclined face of the reflection structure, and the inclined face of the reflection structure reflects the light to the pixel layer.

7. The display panel of claim 5, wherein, The display panel further comprises: A second reflection coating layer is laminated on the outer side of the first passivation layer of the variable display area away from the first substrate.

8. The display panel according to any one of claims 2 to 7, wherein The color film substrate is arranged opposite to the display area. The color film substrate comprises a second substrate, a color filter layer, a second conductive layer and a second passivation layer which are sequentially laminated along a third direction, the second substrate comprises a first light transmission area corresponding to the connection area and a second light transmission area corresponding to the display area, the first light transmission area is used for transmitting light emitted by the backlight module to the reflection groove, and the second light transmission area is used for transmitting light emitted by the backlight module to the color filter layer, the third direction is opposite to the second direction.

9. The display panel of claim 8, wherein, The display panel further comprises: A light guide channel is arranged between the first light transmission area and the connection area, and the light guide channel is formed by being surrounded by a black matrix.

10. A display device, characterized by comprising: The display panel comprises a backlight module and a display panel as claimed in any one of claims 1-9, and the backlight module is arranged opposite to the display panel.

Images