Liquid crystal prism and display device

Abstract

The embodiment of the invention discloses a liquid crystal prism and a display device. An electrode group in the liquid crystal prism is located on one side of the first substrate, and the electrode group comprises a plurality of electrodes. The divider resistor set comprises a plurality of divider resistors which are sequentially connected in series, and every two adjacent divider resistors are electrically connected with the same electrode. The divider resistors in the divider resistor group comprise an ith resistor and a jth resistor, the first end of the ith resistor is electrically connected with the first voltage end, the second end of the jth resistor is electrically connected with the second voltage end, the second end of the ith resistor is coupled with the first end of the jth resistor, and i and j are positive integers and are not equal; the voltage of the first voltage end is different from the voltage of the second voltage end. Therefore, the first voltage end and the second voltage end can respectively provide different voltage signals for the plurality of electrodes through the divider resistor group, and the number of the electrodes is larger than that of the voltage ends, so that more electrodes are controlled by less electrodes, the preparation cost of the liquid crystal prism is reduced, and the power consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a liquid crystal prism and a display device. Background Art

[0002] The liquid crystal prism in the prior art forms a periodic electric field through the liquid crystal cell, so that the liquid crystal cell forms an equivalent optical function of a rod prism, and is used in displays that can realize electrically controlled switching between 2D / 3D modes as a key 3D optical component.

[0003] Currently, an independent voltage source is used to provide different voltages to each electrode in the liquid crystal prism so that the liquid crystal prism forms an effective prism shape, which results in a large number of voltage sources, resulting in higher cost and higher power consumption of the liquid crystal prism. Summary of the Invention

[0004] The present invention provides a liquid crystal prism and a display device. Two voltage terminals and a voltage-dividing resistor group can provide different voltage signals to multiple electrodes, thereby achieving control of multiple with fewer terminals and reducing the number of voltage terminals, thereby reducing the preparation cost of the liquid crystal prism and reducing the overall power consumption of the liquid crystal prism.

[0005] In a first aspect, an embodiment of the present invention provides a liquid crystal prism, comprising:

[0006] a first substrate;

[0007] an electrode group, located on one side of the first substrate, the electrode group comprising a plurality of electrodes;

[0008] A voltage-dividing resistor group, the voltage-dividing resistor group comprising a plurality of voltage-dividing resistors connected in series, wherein two adjacent voltage-dividing resistors are electrically connected to the same electrode;

[0009] a first voltage terminal and a second voltage terminal; the voltage-divider resistors in the voltage-divider resistor group include an i-th resistor and a j-th resistor, the first end of the i-th resistor is electrically connected to the first voltage terminal, the second end of the j-th resistor is electrically connected to the second voltage terminal, the second end of the i-th resistor is coupled to the first end of the j-th resistor, i and j are positive integers, i and j are not equal, and the voltage of the first voltage terminal is different from the voltage of the second voltage terminal.

[0010] In a second aspect, an embodiment of the present invention provides a display device, comprising the liquid crystal prism provided in the first aspect of the present invention and a display panel, wherein the liquid crystal prism is located on one side of a light emitting surface of the display panel.

[0011] The liquid crystal prism provided by an embodiment of the present invention includes a voltage-dividing resistor group, which includes a plurality of voltage-dividing resistors connected in series, and two adjacent voltage-dividing resistors are electrically connected to the same electrode. The voltage-dividing resistors in the voltage-dividing resistor group include an i-th resistor and a j-th resistor, and the first end of the i-th resistor is electrically connected to the first voltage terminal, and the second end of the j-th resistor is electrically connected to the second voltage terminal. The voltage of the first voltage terminal is different from the voltage of the second voltage terminal. In this way, between the i-th resistor and the j-th resistor, the voltage between the first voltage terminal and the second voltage terminal is divided into a plurality of gradually changing voltages by a plurality of voltage-dividing resistors connected in series, so as to provide different voltages to the corresponding electrically connected electrodes. Thus, different voltages are provided to the plurality of electrodes through the two voltage terminals and the voltage-dividing resistor group, achieving the effect of providing a voltage signal far greater than the number of voltage terminals with a small number of voltage terminals, thereby reducing the number of voltage terminals, reducing the preparation cost of the liquid crystal prism, and reducing the overall power consumption of the liquid crystal prism. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic cross-sectional view of a liquid crystal prism provided by an embodiment of the present invention;

[0013] Figure 2 is a schematic top view of a liquid crystal prism unit provided by an embodiment of the present invention;

[0014] Figure 3 is a schematic top view of another liquid crystal prism unit provided by an embodiment of the present invention;

[0015] Figure 4 is a schematic top view of another liquid crystal prism unit provided by an embodiment of the present invention;

[0016] Figure 5 is a schematic top view of another liquid crystal prism unit provided by an embodiment of the present invention;

[0017] Figure 6 is a schematic top view of another liquid crystal prism unit provided by an embodiment of the present invention;

[0018] Figure 7 is a schematic top view of another liquid crystal prism unit provided by an embodiment of the present invention;

[0019] Figure 8 is a partial schematic diagram of a voltage divider resistor provided by an embodiment of the present invention;

[0020] Figure 9 A schematic cross-sectional view of a voltage divider resistor provided by an embodiment of the present invention;

[0021] Figure 10 is a cross-sectional schematic diagram of another voltage divider resistor provided by an embodiment of the present invention;

[0022] Figure 11 is a partial schematic diagram of another voltage divider resistor provided by an embodiment of the present invention;

[0023] Figure 12 is a schematic top view of another liquid crystal prism unit provided by an embodiment of the present invention;

[0024] Figure 13 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described below in conjunction with the drawings in the embodiments of the present invention through specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Various modifications and changes can be made in the present invention without departing from the spirit or scope of the present invention, which is obvious to those skilled in the art. Therefore, the present invention is intended to cover modifications and changes of the present invention that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents.

[0026] Furthermore, the terms "first," "second," and similar terms used in the embodiments of the present disclosure do not indicate any order, quantity, or importance, but are simply used to distinguish different components. Similarly, terms such as "a," "an," or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Terms such as "include" or "comprising" mean that the element or object preceding the term includes the elements or objects listed after the term, and their equivalents, without excluding other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. Furthermore, terms such as "same" or "equal" used in the embodiments of the present disclosure do not mean that two objects are exactly the same size or shape. Approximately the same or approximately equal within a certain error range is permitted. It should be noted that the embodiments provided in the embodiments of the present disclosure can be combined with each other if there is no contradiction.

[0027] Figure 1 is a cross-sectional schematic diagram of a liquid crystal prism provided by an embodiment of the present invention, Figure 2 Schematic diagram of a top view of a liquid crystal prism unit provided by an embodiment of the present invention. Figure 1 and Figure 2The liquid crystal prism includes a first substrate 10, an electrode group 20, a voltage-dividing resistor group 30, a first voltage terminal V1, and a second voltage terminal V2. The electrode group 20 is located on one side of the first substrate 10, and the electrode group 20 includes a plurality of electrodes 210. The voltage-dividing resistor group 30 includes a plurality of voltage-dividing resistors 310 connected in series, with two adjacent voltage-dividing resistors 310 electrically connected to the same electrode 210. The voltage-dividing resistors 310 in the voltage-dividing resistor group 30 include an i-th resistor 310(i) and a j-th resistor 310(j), wherein a first end of the i-th resistor 310(i) is electrically connected to the first voltage terminal V1, a second end of the j-th resistor 310(j) is electrically connected to the second voltage terminal V2, and a second end of the i-th resistor 310(i) is coupled to a first end of the j-th resistor 310(j), wherein i and j are positive integers, i and j are not equal, and the voltage at the first voltage terminal V1 is different from the voltage at the second voltage terminal V2.

[0028] Specifically, such as Figure 1 As shown, the liquid crystal prism may include a first substrate 10 and a second substrate 40 arranged opposite to each other. The materials of the first substrate 10 and the second substrate 40 may be glass, quartz, plastic or other transparent insulating materials. Preferably, the material of the first substrate 10 or the second substrate 40 is glass. An electrode group 20 is provided on the side of the first substrate 10 close to the second substrate 40. The electrode group 20 includes a plurality of electrodes 210. The plurality of first electrodes 20 are independently arranged and arranged along the first direction X. An opposing electrode 50 is also provided on the side of the second substrate 40 close to the first substrate 10. The plurality of electrodes 210 and the opposing electrode 50 are arranged opposite to each other. When a voltage is applied to the opposing electrode 210 and the opposing electrode 50, an electric field can be formed between the electrode 210 and the opposing electrode 50. In addition, a liquid crystal layer (not shown) is further provided between the electrode 210 and the counter electrode 50. The liquid crystal layer includes a plurality of liquid crystal molecules 60. When no electric field is applied, the liquid crystal molecules 60 are arranged along a specific direction. For example, when no electric field is applied, the liquid crystal molecules 60 are in a flat state. The flat state can be understood as a state in which the long axis of the liquid crystal molecules is parallel to the plane of the first substrate 10. When an electric field is applied to the liquid crystal molecules 60 through the electrode 210 and the counter electrode 50, the arrangement of the liquid crystal molecules 60 can be changed to an upright state. The upright state can be understood as a state in which the long axis of the liquid crystal molecules is at an angle to the plane of the first substrate 10.

[0029] Furthermore, the liquid crystal prism includes multiple liquid crystal prism units 70. In the three-dimensional display mode of the liquid crystal prism, multiple electrodes 210 are independently provided. The voltages of different electrodes 210 can be controlled to position multiple liquid crystal molecules 60 in an upright state. The angles between the long axes of the liquid crystal molecules 60 at different positions and the plane of the first substrate 10 are different, thereby forming the liquid crystal prism units 70 with the equivalent optical function of a rod prism. This allows the liquid crystal prism to operate in a three-dimensional display mode. In the prior art, to ensure that the multiple liquid crystal molecules 60 form liquid crystal prism units 70 with the equivalent optical function of a rod prism, a separate voltage source is required to provide voltage to each corresponding electrode 210 in the liquid crystal prism unit 70. This means that the number of electrodes 210 is equal to the number of voltage sources. This results in a large number of voltage sources, which in turn increases the cost and power consumption of the liquid crystal prism.

[0030] To this end, the embodiment of the present invention further provides a voltage divider resistor group 30, which provides different voltages to each electrode 210 through the first voltage terminal V1, the second voltage terminal V2 and the voltage divider resistor group 30. For example, Figure 2 In the illustrated embodiment, the electrode group 20 in the liquid crystal prism unit 70 includes 9 electrodes 210 as an example for description. Specifically, the voltage-dividing resistor group 30 includes a plurality of voltage-dividing resistors 310, and the plurality of voltage-dividing resistors 310 are arranged along the first direction X. The plurality of voltage-dividing resistors 310 are connected in series in sequence, and two adjacent voltage-dividing resistors 310 are electrically connected to the same electrode 210. For example, when the electrode group 20 includes 9 electrodes 210, the voltage-dividing resistor group 30 may include 10 voltage-dividing resistors 310. Assuming that the electrode group 20 includes the first electrode to the ninth electrode from left to right, and the voltage-dividing resistor group 30 includes the first resistor to the tenth resistor from left to right, the second end of the first resistor is electrically connected to the first end of the second resistor, the second end of the second resistor is electrically connected to the first end of the third resistor, ..., the second end of the ninth resistor is electrically connected to the first end of the tenth resistor, so that the plurality of voltage-dividing resistors 310 are connected in series in sequence. The second end of the first resistor and the first end of the second resistor are connected to the first node, the first node is electrically connected to the first electrode, the second end of the second resistor and the first end of the third resistor are connected to the second node, the second node is electrically connected to the second electrode, ..., the second end of the ninth resistor and the first end of the tenth resistor are electrically connected to the ninth node, the ninth node is electrically connected to the ninth electrode, so that two adjacent voltage divider resistors 310 are electrically connected to the same electrode 210.

[0031] On the basis of the above, continue to see Figure 2Assume that the i-th resistor 310(i) is the rightmost voltage divider resistor 310, i.e., the tenth resistor, and the j-th resistor 310(j) is the middle voltage divider resistor 310, i.e., the fifth resistor or the sixth resistor. By electrically connecting the first voltage terminal V1 to the first end of the i-th resistor 310(i), and the second voltage terminal V2 to the second end of the j-th resistor 310(j), multiple gradually changing voltages can be formed at multiple connection nodes (the tenth node to the sixth node) between the tenth resistor and the sixth resistor. These multiple gradually changing voltages are located between the voltages of the first voltage terminal V1 and the second voltage terminal V2. In this way, different voltages are provided to the corresponding electrodes 210 through the multiple connection nodes, achieving the effect of providing a voltage signal far greater than the number of voltage terminals with a small number of voltage terminals, thereby reducing the number of voltage terminals, lowering the manufacturing cost of the liquid crystal prism, and reducing the overall power consumption of the liquid crystal prism.

[0032] It should be noted that if Figure 2 In the illustrated embodiment, the i-th resistor 310(i) is the rightmost voltage-divider resistor 310 in the voltage-divider resistor group 30, and the j-th resistor 310(j) is the voltage-divider resistor 310 in the middle position of the voltage-divider resistor group 30. The embodiment of the present invention does not limit the specific positions of the i-th resistor 310(i) and the j-th resistor 310(j), and those skilled in the art can set them as needed.

[0033] In summary, the embodiment of the present invention is provided with a liquid crystal prism including a voltage-divider resistor group, the voltage-divider resistor group including a plurality of voltage-divider resistors connected in series in sequence, and two adjacent voltage-divider resistors are electrically connected to the same electrode. In addition, the first end of the i-th resistor in the voltage-divider resistor group is electrically connected to the first voltage terminal, and the second end of the j-th resistor is electrically connected to the second voltage terminal. In this way, through the first voltage terminal, the second voltage terminal and the voltage-divider resistor group, a plurality of gradually changing voltages can be formed at a plurality of connection nodes between the i-th resistor and the j-th resistor, and the plurality of gradually changing voltages are located between the voltages of the first voltage terminal and the second voltage terminal. Different voltages are provided to the corresponding electrodes through the plurality of connection nodes, thereby achieving the effect of providing a voltage signal far greater than the number of voltage terminals with a small number of voltage terminals, thereby reducing the number of voltage terminals, reducing the preparation cost of the liquid crystal prism, and reducing the overall power consumption of the liquid crystal prism.

[0034] Optionally, based on the above embodiment, Figure 3 FIG is a top view schematic diagram of another liquid crystal prism unit provided by an embodiment of the present invention. Figure 3The voltage divider resistors 310 further include a kth resistor 310(k). The i-th resistor 310(i), the j-th resistor 310(j), and the k-th resistor 310(k) are located in the same voltage divider resistor group 30, where k<i<j. A first end of the k-th resistor 310(k) is electrically connected to the second voltage terminal V2, and a second end of the k-th resistor 310(k) is coupled to the first end of the i-th resistor 310(i).

[0035] For example, Figure 3 In the illustrated embodiment, the kth resistor 310(k) is the leftmost voltage-divider resistor 310, i.e., the first resistor. The jth resistor 310(j) is the rightmost voltage-divider resistor 310, i.e., the tenth resistor. The ith resistor 310(i) is the middle voltage-divider resistor 310, i.e., the fifth resistor or the sixth resistor. By electrically connecting the first end of the kth resistor 310(k) to the second voltage terminal V2 and coupling the second end of the kth resistor 310(k) to the first end of the ith resistor 310(i), a plurality of gradually varying voltages can be formed at the connection nodes (first to fifth nodes) between the first and fifth resistors. Similarly, the first voltage terminal V1 is electrically connected to the first end of the i-th resistor 310(i), and the second voltage terminal V2 is electrically connected to the second end of the j-th resistor 310(j). A plurality of gradually changing voltages can be formed at a plurality of connection nodes (the sixth node to the tenth node) between the sixth resistor and the tenth resistor, and the plurality of gradually changing voltages are located between the voltages of the first voltage terminal V1 and the second voltage terminal V2. In this way, different voltages are provided to the corresponding electrodes 210 through a plurality of connection nodes, thereby achieving the effect of providing a voltage signal far greater than the number of voltage terminals with a small number of voltage terminals, thereby reducing the number of voltage terminals, reducing the preparation cost of the liquid crystal prism, and reducing the overall power consumption of the liquid crystal prism.

[0036] Optionally, based on the above embodiment, continue to refer to Figure 3 , the voltage of the first voltage terminal V1 is less than the voltage of the second voltage terminal V2.

[0037] Specifically, when the voltage at the first voltage terminal V1 is lower than the voltage at the second voltage terminal V2, the connection nodes between the first resistor and the fifth resistor (the first node to the fifth node) can form gradually decreasing voltages, where the voltage at the first node is the highest and close to the voltage provided by the second voltage terminal V2, and the voltage at the fifth node is the lowest and equal to the voltage provided by the first voltage terminal V1. Similarly, multiple connection nodes between the sixth resistor and the tenth resistor (the sixth node to the tenth node) can form multiple gradually increasing voltages, where the voltage at the sixth node is the lowest and equal to the voltage provided by the first voltage terminal V1, and the voltage at the tenth node is the highest and close to the voltage provided by the second voltage terminal V2. In this way, by setting the first end of the i-th resistor 310(i) to be electrically connected to the first voltage end V1, the second end of the j-th resistor 310(j) to be electrically connected to the second voltage end V2, the first end of the k-th resistor 310(k) to be electrically connected to the second voltage end V2, the second end of the k-th resistor 310(k) to be coupled to the first end of the i-th resistor 310(i), and the voltage provided by the first voltage end V1 is less than the voltage provided by the second voltage end, a voltage that first gradually decreases and then gradually increases can be provided to the electrode 210 in the electrode group 20, thereby ensuring that the multiple liquid crystal molecules 60 can form a liquid crystal prism unit 70 with an equivalent cylindrical prism optical function, ensuring that the liquid crystal prism can realize a three-dimensional display mode.

[0038] Optionally, based on the above embodiment, continue to refer to Figure 1 The liquid crystal prism also includes an opposing electrode 50 and a liquid crystal layer (not shown in the figure). The liquid crystal layer includes a plurality of liquid crystal molecules 60. The liquid crystal layer is located between the opposing electrode 50 and the electrode group 20. The electrode group 20 is located between the liquid crystal layer and the first substrate 10. The voltage of the first voltage terminal V1 is the same as that of the opposing electrode 50.

[0039] Specifically, such as Figure 1 and Figure 3 As shown, the liquid crystal molecules 60 are arranged along a specific direction when no electric field is applied. For example, the liquid crystal molecules 60 are in a flat state when no electric field is applied. The flat state can be understood as a state in which the long axis of the liquid crystal molecules is parallel to the plane of the first substrate 10. The first voltage terminal V1 is electrically connected to the i-th resistor 310(i), and the voltage of the fourth electrode or the sixth electrode electrically connected to the i-th resistor 310(i) is close to the voltage provided by the first voltage terminal V1. In this way, by setting the first voltage terminal V1 to the same voltage as the opposing electrode 50, the voltage difference between the opposing electrode 50 and the fourth electrode or the sixth electrode is close to zero, thereby ensuring that the liquid crystal molecules 60 located in the central region of the liquid crystal prism unit 70 are in a flat state, thereby ensuring that the multiple liquid crystal molecules 60 can form a liquid crystal prism unit 70 with the equivalent optical function of a rod prism, and ensuring that the liquid crystal prism can achieve a three-dimensional display mode.

[0040] Optionally, based on the above embodiment, continue to refer to Figure 3 The electrodes include an i-1th electrode, and the i-1th electrode is electrically connected to the first voltage terminal V1.

[0041] Specifically, such as Figure 3 As shown, the electrode group 20 includes an odd number of electrodes 210, such as nine electrodes 210 (first electrode to ninth electrode). The number of the voltage-dividing resistors 310 in the voltage-dividing resistor group 30 can be one more than the number of electrodes 210, such as 10 voltage-dividing resistors 310 (first resistor to tenth resistor). On this basis, the electrode 210 located in the middle of the electrode group 20 can be directly electrically connected to the first voltage terminal V1. Exemplarily, if the i-th resistor 310 (i) is the resistor in the middle of the voltage-dividing resistor group 30, then the i-th resistor 310 (i) can be the sixth resistor, and the i-1 electrode 210 (i-1) can be the fifth electrode, the fifth electrode is directly electrically connected to the first voltage terminal V1, the connection node (sixth node) of the sixth resistor and the seventh resistor provides voltage for the sixth electrode, and the connection node (fourth node) of the fifth resistor and the fourth resistor provides voltage for the fifth electrode, etc. In this way, the voltage is directly provided to the fifth electrode through the first voltage terminal V1 to ensure the accuracy of the voltage of the electrode 210 located in the middle of the electrode group 20.

[0042] Optionally, based on the above embodiment, continue to refer to Figure 3 The electrode 210 includes a j-1th electrode 210(j-1), which is electrically connected to the first end of the j-th resistor. And / or, the electrode 210 includes a k-th electrode 210(k), which is electrically connected to the second end of the k-th resistor 310(k).

[0043] Specifically, such as Figure 3As shown, the j-th resistor 310(j) can be the rightmost voltage-dividing resistor 310 in the voltage-dividing resistor group 30. Since the number of voltage-dividing resistors 310 in the voltage-dividing resistor group 30 is one more than the number of electrodes 310 in the electrode group 30, the j-1-th electrode 210(j-1) can be the rightmost electrode 210 in the electrode group 20. Based on this, the j-1-th electrode 210(j-1) is electrically connected to the first end of the j-th resistor 310(j), and the second end of the j-th resistor 310(j) is electrically connected to the second voltage terminal V2. The second voltage terminal V2 then provides a voltage to the j-1-th electrode 210(j-1) via the j-th resistor 310(j), i.e., the second voltage terminal V2 provides a voltage to the ninth electrode via the tenth resistor. Furthermore, the electrodes 210 include a k-th electrode 210(k). The k-th electrode 210(k) can be the leftmost electrode 210 in the electrode group 20, and the k-th resistor can be the leftmost voltage-dividing resistor 310 in the voltage-dividing resistor group 30. On this basis, the kth electrode 210(k) is electrically connected to the second end of the kth resistor 310(k), and the first end of the kth resistor 310(k) is electrically connected to the second voltage terminal V2. The second voltage terminal V2 then provides a voltage to the kth electrode 210(k) via the kth resistor 310(k), i.e., the second voltage terminal V2 provides a voltage to the first electrode via the first resistor. In this manner, the second voltage terminal V2 provides a voltage to the kth electrode 210(k) via the kth resistor 310(k) located on the left side of the electrode group 20, and / or provides a voltage to the j-1th electrode 210(j-1) via the j-th resistor 310(j) located on the right side of the electrode group 20. This allows for a gradually varying voltage to be formed on both the left and right sides of the i-th resistor 310(i), ensuring that a liquid crystal prism unit 70 having the equivalent optical function of a rod prism can be formed.

[0044] Optionally, based on the above embodiment, Figure 4 FIG is a top view schematic diagram of another liquid crystal prism unit provided by an embodiment of the present invention. Figure 4 The electrode 210 includes a j-th electrode 210(j) and a k-th electrode 210(k), the j-th electrode 210(j) is electrically connected to the second voltage terminal V2, and the k-th electrode 210(k) is electrically connected to the k-th resistor 310(k).

[0045] Specifically, such as Figure 4In the embodiment shown, the electrode group 20 may include nine electrodes 210, namely the first electrode to the ninth electrode. The number of the voltage-dividing resistors 310 in the voltage-dividing resistor group 30 may be the same as the number of the electrodes 210 in the electrode group 20, that is, the voltage-dividing resistor group 30 includes the first resistor to the ninth resistor. Then the j-th electrode 210 (j) may be the resistor on the rightmost side of the electrode group 20, that is, the ninth electrode. Wherein, the connection node between the first resistor and the second resistor is the first node, and the voltage is provided to the first electrode through the first node; the connection node between the second resistor and the third resistor is the second node, and the voltage is provided to the second electrode through the second node; ...; the connection node between the eighth resistor and the ninth resistor is the eighth node, and the voltage is provided to the eighth electrode through the eighth node, and the ninth electrode is directly electrically connected to the second voltage terminal V2, that is, the second voltage terminal V2 directly provides voltage to the ninth electrode, and the voltage of the ninth electrode is the same as the voltage of the second voltage terminal V2, thereby ensuring the accuracy of the voltage of the j-th electrode 210 (j).

[0046] In yet another embodiment, Figure 5 This is a top view schematic diagram of another liquid crystal prism unit provided by an embodiment of the present invention, see Figure 5 The electrode 210 includes a j-th electrode 210(j) and a k-th electrode 210(k), the j-th electrode 210(j) is electrically connected to the first end of the j-th resistor 310(j), and the k-th electrode 210(k) is electrically connected to the second voltage terminal V2.

[0047] Specifically, such as Figure 5 In the embodiment shown, the electrode group 20 may include nine electrodes 210, namely the first electrode to the ninth electrode. The number of the voltage-dividing resistors 310 in the voltage-dividing resistor group 30 may be the same as the number of the electrodes 210 in the electrode group 20, that is, the voltage-dividing resistor group 30 includes the first resistor to the ninth resistor. Then the kth electrode 210 (k) may be the leftmost resistor in the electrode group 20, that is, the first electrode. Wherein, the second voltage terminal V2 is directly electrically connected to the kth electrode 210 (k), the connection node between the first resistor and the second resistor is the second node, and the voltage is provided to the second electrode through the second node, the connection node between the second resistor and the third resistor is the third node, and the voltage is provided to the third electrode through the third node, ..., the connection node between the eighth resistor and the ninth resistor is the ninth node, and the voltage is provided to the ninth electrode through the ninth node, that is, the second voltage terminal V2 directly provides voltage to the first electrode, and the voltage of the first electrode is the same as the voltage of the second voltage terminal V2, thereby ensuring the accuracy of the voltage of the kth electrode 210 (k).

[0048] Optionally, in yet another embodiment, Figure 6 FIG is a top view schematic diagram of another liquid crystal prism unit provided by an embodiment of the present invention. Figure 6The electrode 210 includes a j-th electrode 210 ( j ), which is electrically connected to the second voltage terminal V2, and the electrode 210 also includes a k-th electrode 210 ( k ), which is electrically connected to the second voltage terminal V2.

[0049] Specifically, such as Figure 6 In the illustrated embodiment, the electrode group 20 may include nine electrodes 210, namely, electrodes 1 through 9. The number of voltage-dividing resistors 310 in the voltage-dividing resistor group 30 may be less than the number of electrodes 210 in the electrode group 20. For example, if the voltage-dividing resistor group 30 includes resistors 1 through 8, the kth electrode 210(k) may be the leftmost electrode in the electrode group 20, namely, the first electrode, and the jth electrode 210(j) may be the rightmost electrode in the electrode group 20, namely, the ninth electrode. Among them, the second voltage terminal V2 is directly electrically connected to the kth electrode 210(k), the connection node between the first resistor and the second resistor is the second node, and the voltage is provided to the second electrode through the second node, the connection node between the second resistor and the third resistor is the third node, and the voltage is provided to the third electrode through the third node, ..., the connection node between the seventh resistor and the eighth resistor is the eighth node, and the voltage is provided to the eighth electrode through the eighth node, and the second voltage terminal V2 is directly electrically connected to the ninth electrode, that is, the second voltage terminal V2 directly provides voltage to the first electrode and the ninth electrode, and the voltage of the first electrode and the ninth electrode is the same as the voltage of the second voltage terminal V2, thereby ensuring the accuracy of the voltage of the kth electrode 210(k) and the jth electrode 210(j).

[0050] Optionally, based on the above embodiment, Figure 7 FIG is a top view schematic diagram of another liquid crystal prism unit provided by an embodiment of the present invention. Figure 7 The voltage-dividing resistor 310 further includes an m-th resistor 310(m), and the m-th resistor 310(m), the i-th resistor 310(i), the j-th resistor 310(j), and the k-th resistor 310(k) are located in the same voltage-dividing resistor group 30, where k<m<i, or i<m<j. The electrode group 20 includes j-1 electrodes, where the j-1-th electrode 210(j-1) is electrically connected to the first end of the j-th resistor 310(j), the k-th electrode 210(k) is electrically connected to the second end of the k-th resistor 310(k), and the m-2-th electrode 210(m-2) or the m-th electrode 210(m) is electrically connected to the second end of the m-th resistor 310(m).

[0051] Specifically, such as Figure 7In the illustrated embodiment, the number of voltage-divider resistors 310 in the voltage-divider resistor group 30 is one more than the number of electrodes 210 in the electrode group 20. Exemplarily, the electrode group 20 includes the first electrode to the ninth electrode from left to right. The voltage-divider resistor group 30 includes the first resistor to the tenth resistor from left to right. Then the j-1th electrode 210 (j-1) can be the rightmost electrode in the electrode group 20, i.e., the ninth electrode, and the k-th electrode 210 (k) can be the leftmost electrode in the electrode group 20, i.e., the first electrode. The j-th resistor 310 (j) is the rightmost resistor in the voltage-divider resistor group 30, i.e., the tenth resistor. The k-th resistor 310 (k) can be the leftmost resistor in the voltage-divider resistor group 30, i.e., the first resistor. In this way, the j-1th electrode 210 (j-1) is electrically connected to the first end of the j-th resistor 310 (j), and the k-th electrode 210 (k) is electrically connected to the second end of the k-th resistor 310 (k), and each electrode 210 provides voltage through the connection node of the corresponding two voltage divider resistors 310. On this basis, a voltage divider resistor 310 is further provided, including an mth resistor 310(m). Since k<m<i, the mth resistor 310(m) is located between the first resistor and the fifth resistor, and the mth electrode 210(m) is electrically connected to the second end of the mth resistor 310(m). Assuming m=3, the third electrode is electrically connected to the second end of the third resistor, and then the first end of the first resistor and the second end of the second resistor are connected to the first node, and a voltage is provided to the first electrode through the first node. The first end of the second resistor and the second end of the third resistor are connected to the second node, and a voltage is provided to the third electrode through the second node (that is, the third electrode is electrically connected to the second end of the third resistor). The first end of the third resistor and the second end of the fourth resistor are connected to the third node, and a voltage is provided to the second electrode through the third node. The first end of the fourth resistor and the second end of the fifth resistor are connected to the fourth node, and a voltage is provided to the fourth electrode through the fourth node. ... The first end of the ninth resistor and the second end of the tenth resistor are electrically connected to the ninth node, and a voltage is provided to the ninth electrode through the ninth node. In this way, by swapping the connection relationship between the second node and the third node, the voltage change process from the first electrode to the fifth electrode has non-monotonic changes, such as waveform changes instead of linear changes, which expands the application scenarios.

[0052] It should be noted that Figure 7 In the illustrated embodiment, the electrical connection between the mth electrode 210 (m) and the second end of the mth resistor 310 (m) is used as an example for illustration only, but this is not limiting. In other embodiments, the m-2th electrode 210 (m-2) and the second end of the mth resistor 310 (m) may be electrically connected to achieve a voltage waveform change, and those skilled in the art may set it as needed.

[0053] Optionally, based on the above embodiment, Figure 8is a partial schematic diagram of a voltage divider resistor provided by an embodiment of the present invention, Figure 9 A schematic cross-sectional view of a voltage divider resistor provided by an embodiment of the present invention. Figure 8 and Figure 9 The first substrate 10 includes a substrate 110 and a low-temperature polysilicon layer 120 located on one side of the substrate 110. The low-temperature polysilicon layer 120 includes a P-type doping region 121 and a non-doping region 122. The voltage divider resistor 310 includes a P-type doping region 121. Specifically, as Figure 9 As shown, the voltage divider resistor 310 includes a P-type doped region, that is, the voltage divider resistor 310 can be a P-type doped low-temperature polysilicon resistor. On this basis, the square resistance of the voltage divider resistor 310 can be set to 2KΩ, so that the width-to-length ratio of the voltage divider resistor 310 can be determined according to the resistance value of the voltage divider resistor 310, and the distribution of the voltage divider resistor 310 can be set according to the distance between two adjacent electrodes 210.

[0054] Optionally, based on the above embodiment, see Figure 8 The plurality of electrodes 210 are arranged along a first direction X and extend along a second direction Y, where the first direction X intersects the second direction Y. The voltage-dividing resistor 310 is located between two adjacent electrodes 210. The voltage-dividing resistor 310 includes a plurality of first voltage-dividing resistor sections 311 and a plurality of second voltage-dividing resistor sections 312. The first voltage-dividing resistor sections 311 extend along the second direction Y, and the second voltage-dividing resistor sections 312 extend along the first direction X. The length of the first voltage-dividing resistor sections 311 extending along the second direction Y is greater than the length of the second voltage-dividing resistor sections 312 extending along the first direction X. The first voltage-dividing resistor sections 311 and the second voltage-dividing resistor sections 312 are electrically connected to each other.

[0055] For example, Figure 8 In the illustrated embodiment, the voltage-dividing resistor 310 is located between two adjacent electrodes 210. Due to the small spacing between the two adjacent electrodes 210, the voltage-dividing resistor 310 can be arranged in a "bow" shape. Specifically, the voltage-dividing resistor 310 includes a second voltage-dividing resistor segment 312 extending along the first direction X and a first voltage-dividing resistor segment 311 extending along the second direction Y. The first voltage-dividing resistor segment 311 and the second voltage-dividing resistor segment 312 are electrically connected to each other. Furthermore, by setting the length of the first voltage-dividing resistor segment 311 extending along the second direction Y to be greater than the length of the second voltage-dividing resistor segment 312 extending along the first direction X, the voltage-dividing resistor 210 extends more in the second direction Y, thereby ensuring that the voltage-dividing resistor 310 can be accommodated between two adjacent electrodes 210 in the first direction X.

[0056] Optionally, based on the above embodiment, continue to refer to Figure 8The line width of the first voltage-dividing resistor segment 311 and the second voltage-dividing resistor segment 312 is D1, where D1 satisfies 3μm≤D1≤4μm. The sum of the extended lengths of the multiple first voltage-dividing resistor segments 311 and the multiple second voltage-dividing resistor segments 312 is D2, where D2 satisfies 15mm≤D1≤20mm.

[0057] Specifically, assuming the sheet resistance of the voltage-divider resistor 310 is 2 kΩ, and to achieve voltage division, the resistance value of the voltage-divider resistor 310 needs to be set to the MΩ level. Therefore, the width-to-length ratio of the voltage-divider resistor 310 is approximately 5000:1. The spacing between two adjacent electrodes 210 is 15 μm-20 μm. By setting the line width D1 of the first voltage-divider resistor segment 311 and the second voltage-divider resistor segment 312 to satisfy 3 μm ≤ D1 ≤ 4 μm, four to five first voltage-divider resistor segments 311 can be accommodated between two adjacent electrodes 210. The sum D2 of the extended lengths of the multiple first voltage-divider resistor segments 311 and the multiple second voltage-divider resistor segments 312 satisfies 15 mm ≤ D1 ≤ 20 mm. Therefore, the extended length of the first voltage-divider resistor segment 311 can be less than 5 mm, thereby facilitating a narrow frame.

[0058] Optionally, based on the above embodiment, Figure 10 is a cross-sectional schematic diagram of another voltage divider resistor provided by an embodiment of the present invention, Figure 11 FIG is a partial schematic diagram of another voltage divider resistor provided by an embodiment of the present invention. Figure 10 and Figure 11 The first substrate 10 includes a substrate 110 and an amorphous silicon layer 130 and an N-type doped layer 140 located on one side of the substrate, wherein the N-type doped layer 140 is located on the side of the amorphous silicon layer 130 away from the substrate 110. Along the thickness direction of the substrate 110, the amorphous silicon layer 130 includes an N-type doped region 131 overlapping with the N-type doped layer 140 and a non-doped region (not shown in the figure) staggered with the N-type doped layer 140. The voltage divider resistor 310 includes the N-type doped region 131 and the N-type doped layer 140. Specifically, as Figure 10 In the embodiment shown, the voltage divider resistor 310 can be composed of an N-type doped region 131 and an N-type doped layer 140. Since the square resistance of the voltage divider resistor 310 composed of the N-type doped region 131 and the N-type doped layer 140 is in the MΩ range under the gate voltage, the required resistance value of the voltage divider resistor 310 can be achieved while reducing the volume of the voltage divider resistor 310, thereby providing design space for the setting of other wiring.

[0059] Optionally, based on the above embodiment, continue to refer to Figure 10 and Figure 11The first substrate 10 includes a source-drain metal layer 150 located on the side of the N-type doped layer 140 away from the substrate. The source-drain metal layer 150 includes a source metal line 151 and a drain metal line 152. The source metal line 151 and the drain metal line 152 are both electrically connected to the N-type doped layer 140, and the source metal line 151 and the drain metal line 152 are also electrically connected to two adjacent electrodes 210, respectively. Specifically, the voltage divider resistor 310 includes an N-type doped region 131 and an N-type doped layer 140. Among the two adjacent electrodes 210, one electrode 210 is electrically connected to the N-type doped layer 140 through the source metal line 151, thereby achieving electrical connection between one electrode 210 and the first end of the voltage divider resistor 310, and the other electrode 210 is electrically connected to the N-type doped layer 140 through the drain metal line 152, thereby achieving electrical connection between the other electrode 210 and the voltage divider resistor 310, ensuring that the connection method between the voltage divider resistor 310 and the electrode 210 is simple.

[0060] Optionally, based on the above embodiment, the first substrate 10 further includes a gate metal layer 160. The gate metal layer 160 is located between the amorphous silicon layer 130 and the substrate 10. The gate metal layer 160 includes a gate metal line 161. Along the thickness direction of the first substrate 10, the gate metal line 161 at least partially overlaps with the amorphous silicon layer 130, and the gate metal line 161 has a DC voltage. Specifically, the gate metal line 161 at least partially overlaps with the amorphous silicon layer 130, and the gate metal line 161 has a DC voltage, and then the gate metal line 161 provides a DC voltage to the voltage divider resistor 310 composed of the N-type doped region 131 and the N-type doped layer 140, thereby ensuring that the voltage divider resistor 310 can reach the MΩ level.

[0061] Optionally, based on the above embodiment, the resistance value of the voltage divider resistor 310 is R1, where R1 satisfies the following conditions: 500KΩ≤R1≤10MΩ. Specifically, by setting the resistance value R1 of the voltage divider resistor 310 to satisfy the following conditions: 500KΩ≤R1≤10MΩ, the first voltage terminal and the second voltage terminal can obtain voltage values ​​within a desired range after passing through the voltage divider resistor 310, thereby providing different voltages to different electrodes 210.

[0062] Optionally, based on the above embodiment, Figure 12 FIG is a top view schematic diagram of another liquid crystal prism unit provided by an embodiment of the present invention. Figure 12 The electrode group 20 includes a plurality of electrodes 210. Along the second direction Y, the electrode 210 includes a first connection end 211 and a second connection end 212. The first connection end 211 and the second connection end 212 are both electrically connected to the voltage divider resistor 310. The second direction Y is the extension direction of the electrode 210. Specifically, Figure 12In the embodiment shown, since the electrode 210 has a long extension length along the second direction Y, if voltage is only provided at one end of the electrode 210, a voltage drop problem may easily occur on the same electrode 210. Therefore, the electrode 210 is provided to include a first connection end 211 and a second connection end 212, and the first connection end 211 and the second connection end 212 are both electrically connected to the voltage divider resistor 310, thereby ensuring the uniformity of the voltage on the electrode 210.

[0063] Based on the same inventive concept, an embodiment of the present invention further provides a display device. Figure 13 FIG. 1 is a schematic diagram of the structure of a display device provided by an embodiment of the present invention. Figure 13 As shown, the display device includes the liquid crystal prism 100 according to any embodiment of the present invention and a display panel. The liquid crystal prism is located on the light-emitting surface of the display panel. Therefore, the display device provided by the embodiment of the present invention has the corresponding beneficial effects of the liquid crystal prism 100 provided by the embodiment of the present invention, which will not be described in detail here. For example, the display device can be an electronic device such as a mobile phone, a computer, or an in-vehicle display device, which is not limited by the embodiment of the present invention.

[0064] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A liquid crystal prism, characterized in that: include: a first substrate; an electrode group, located on one side of the first substrate, the electrode group comprising a plurality of electrodes; A voltage-dividing resistor group, the voltage-dividing resistor group comprising a plurality of voltage-dividing resistors connected in series, wherein two adjacent voltage-dividing resistors are electrically connected to the same electrode; a first voltage terminal and a second voltage terminal; the voltage-divider resistors in the voltage-divider resistor group include an i-th resistor and a j-th resistor, the first end of the i-th resistor is electrically connected to the first voltage terminal, the second end of the j-th resistor is electrically connected to the second voltage terminal, the second end of the i-th resistor is coupled to the first end of the j-th resistor, i and j are positive integers, i and j are not equal, and the voltage of the first voltage terminal is different from the voltage of the second voltage terminal.

2. The liquid crystal prism according to claim 1, wherein The voltage-dividing resistor further includes a kth resistor, and the i-th resistor, the j-th resistor and the k-th resistor are located in the same voltage-dividing resistor group; wherein k<i<j; The first end of the kth resistor is electrically connected to the second voltage end, and the second end of the kth resistor is coupled to the first end of the ith resistor.

3. The liquid crystal prism according to claim 2, wherein: The voltage of the first voltage terminal is lower than the voltage of the second voltage terminal.

4. The liquid crystal prism according to claim 1, wherein The apparatus further includes an opposing electrode and a liquid crystal layer, wherein the liquid crystal layer includes a plurality of liquid crystal molecules, the liquid crystal layer is located between the opposing electrode and the electrode group, and the electrode group is located between the liquid crystal layer and the first substrate; The voltage of the first voltage terminal is the same as that of the counter electrode.

5. The liquid crystal prism according to claim 2, wherein: The electrodes include an (i-1)th electrode, and the (i-1)th electrode is electrically connected to the first voltage end.

6. The liquid crystal prism according to claim 2, wherein: The electrodes include a j-1th electrode, the j-1th electrode being electrically connected to the first end of the j-th resistor; And / or, the electrodes include a kth electrode, and the kth electrode is electrically connected to the second end of the kth resistor.

7. The liquid crystal prism according to claim 2, wherein: The electrodes include a j-th electrode, and the j-th electrode is electrically connected to the second voltage terminal; And / or, the electrodes include a kth electrode, and the kth electrode is electrically connected to the second voltage end.

8. The liquid crystal prism according to claim 2, wherein: The voltage-dividing resistor further includes an mth resistor, and the mth resistor, the ith resistor, the jth resistor and the kth resistor are located in the same voltage-dividing resistor group; wherein k<m<i, or i<m<j; The electrode group includes j-1 electrodes, wherein the j-1th electrode is electrically connected to the first end of the jth resistor, the kth electrode is electrically connected to the second end of the kth resistor, and the m-2th electrode or the mth electrode is electrically connected to the second end of the mth resistor.

9. The liquid crystal prism according to claim 1, wherein The first substrate includes a substrate and a low-temperature polysilicon layer located on one side of the substrate; The low temperature polysilicon layer includes a P-type doped region and a non-doped region; The voltage-dividing resistor includes the P-type doping region.

10. The liquid crystal prism according to claim 9, wherein The plurality of electrodes are arranged along a first direction and extend along a second direction, and the first direction intersects with the second direction; The voltage dividing resistor is located between two adjacent electrodes; The voltage-dividing resistor includes a plurality of first voltage-dividing resistor sections and a plurality of second voltage-dividing resistor sections; The first voltage-dividing resistor section extends along the second direction, the second voltage-dividing resistor section extends along the first direction, and a length of the first voltage-dividing resistor section extending along the second direction is greater than a length of the second voltage-dividing resistor section extending along the first direction; The first voltage-dividing resistor section and the second voltage-dividing resistor section are electrically connected to each other.

11. The liquid crystal prism according to claim 10, wherein: The line width of the first voltage-dividing resistor section and the second voltage-dividing resistor section is D1, wherein D1 satisfies 3 μm≤D1≤4 μm; The sum of the extension lengths of the plurality of first voltage-dividing resistor sections and the extension lengths of the plurality of second voltage-dividing resistor sections is D2, where D2 satisfies 15 mm ≤ D1 ≤ 20 mm.

12. The liquid crystal prism according to claim 1, wherein The first substrate includes a substrate, and an amorphous silicon layer and an N-type doped layer located on one side of the substrate, wherein the N-type doped layer is located on a side of the amorphous silicon layer away from the substrate; Along the thickness direction of the substrate, the amorphous silicon layer includes an N-type doped region overlapping with the N-type doped layer and a non-doped region staggered with the N-type doped layer; The voltage-dividing resistor includes the N-type doping region and the N-type doping layer.

13. The liquid crystal prism according to claim 12, wherein: The first substrate includes a source-drain metal layer located on a side of the N-type doped layer away from the substrate; The source-drain metal layer includes a source metal line and a drain metal line; The source metal line and the drain metal line are both electrically connected to the N-type doped layer, and the source metal line and the drain metal line are also electrically connected to two adjacent electrodes respectively.

14. The liquid crystal prism according to claim 12, wherein: The first substrate further includes a gate metal layer; The gate metal layer is located between the amorphous silicon layer and the substrate; The gate metal layer includes a gate metal line; Along a thickness direction of the first substrate, the gate metal line at least partially overlaps the amorphous silicon layer, and the gate metal line has a direct current voltage.

15. The liquid crystal prism according to claim 1, wherein The resistance of the voltage divider resistor is R1, wherein R1 satisfies: 500KΩ≤R1≤10MΩ.

16. The liquid crystal prism according to claim 1, wherein The electrode group includes a plurality of electrodes; Along the second direction, the electrode includes a first connecting end and a second connecting end, the first connecting end and the second connecting end are both electrically connected to the voltage dividing resistor, and the second direction is the extending direction of the electrode.

17. A display device, characterized in that: The invention comprises the liquid crystal prism and the display panel according to any one of claims 1 to 16, wherein the liquid crystal prism is located on one side of the light emitting surface of the display panel.

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