TWI693452B - Liquid crystal device - Google Patents

Abstract

A liquid crystal display device has a display area and a lens area and includes an upper substrate, an upper polarizer, an upper electrode, a lower substrate, a lower polarizer, a lower electrode, a liquid crystal layer, and an image sensing module. The upper polarizer is disposed on the upper substrate and covers the display area and the lens area of the upper substrate. The upper electrode is disposed on the lens area of the upper substrate. The lower substrate is facing to the upper substrate. The lower polarizer is disposed on the lower substrate and covers the display area of the lower substrate. The lower polarizer has an opening in the lens area. The lower electrode is disposed on the lens area of the lower substrate. The liquid crystal layer is disposed between the upper substrate and the lower substrate.

Description

Liquid crystal display device

The present invention relates to a liquid crystal display device, and particularly to a liquid crystal display device having a display area and a lens area.

With the development of technology, the width of the frame of the display panel is gradually reduced, and the full-screen display device has become a technology that various manufacturers are eager to develop. In some full-screen display devices with camera functions, such as mobile phones, tablet computers, etc., a front lens is set in the device. When setting the front lens, it is often necessary to perform a drilling process on the liquid crystal display device first, and then place the front lens into the drilled hole. However, the drilling process on the liquid crystal display device will cause many problems, such as: the glass carrier is broken, the size of the lens is limited by the drilling tool, and the liquid crystal leaks. Therefore, there is an urgent need for a method that can solve the aforementioned problems.

The invention provides a liquid crystal display device, which can achieve good image sensing quality without drilling a substrate of the liquid crystal display device.

At least one embodiment of the present invention provides a liquid crystal display device having a display area and a lens area, and including an upper substrate, an upper polarizing layer, an upper electrode, a lower substrate, a lower polarizing layer, a lower electrode, a liquid crystal layer, and image sensing Module. The upper polarizing layer is located on the upper substrate and covers the display area and the lens area of the upper substrate. The upper electrode is located in the lens area of the upper substrate. The lower substrate faces the upper substrate. The lower polarizing layer is located on the lower substrate and covers the display area of the lower substrate. The lower polarizing layer has an opening in the lens area. The lower electrode is located in the lens area of the lower substrate. The liquid crystal layer is located between the upper substrate and the lower substrate. The image sensing module is arranged corresponding to the lens area of the lower substrate.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

FIG. 1A is a schematic front view of an upper substrate of a liquid crystal display device according to an embodiment of the invention. 1B is a schematic front view of a lower substrate of a liquid crystal display device according to an embodiment of the invention. Fig. 1C is a schematic cross-sectional view taken along section line aa' of Fig. 1A. For convenience of description, parts of the display panel are omitted in FIGS. 1A, 1B, and 1C, respectively.

1A, 1B, and 1C, the liquid crystal display device 10 has a display area AA and a lens area LA. The position, shape and size of the lens area LA can be adjusted according to requirements, and the position, shape and size of the lens area LA in FIGS. 1A and 1B are for illustration only. In some embodiments, there may be a peripheral area around the display area AA, but the invention is not limited thereto. The liquid crystal display device 10 includes an upper substrate SB1, an upper polarizing layer P1, an upper electrode E1, a lower substrate SB2, a lower polarizing layer P2, a lower electrode E2, a liquid crystal layer L, and an image sensing module CS. The lower substrate SB2 faces the upper substrate SB1. The liquid crystal layer L is located between the upper substrate SB1 and the lower substrate SB2. In this embodiment, the liquid crystal display device 10 further includes a filter element CF, a pixel array AL, an insulating layer OC, an insulating layer PL, an alignment layer PI1, an alignment layer PI2, and a lens module LS.

The upper polarizing layer P1 is located on the upper substrate SB1 and covers the display area AA and the lens area LA of the upper substrate SB1. The lower polarizing layer P2 is located on the lower substrate SB2 and covers the display area AA of the lower substrate SB2. The lower polarizing layer P2 has an opening O1 in the lens area LA. Although in the present embodiment, the upper polarizing layer P1 and the lower polarizing layer P2 are located outside the upper substrate SB1 and the lower substrate SB2, respectively, the invention is not limited thereto. In other embodiments, at least one of the upper polarizing layer P1 and the lower polarizing layer P2 is located between the upper substrate SB1 and the lower substrate SB2.

The filter element CF is located between the upper substrate SB1 and the lower substrate SB2. For example, the filter element CF in this embodiment is located on the upper substrate SB1, but the invention is not limited to this. In other embodiments, the filter element CF may also be located on the lower substrate SB2. The filter element CF includes, for example, a red filter pattern r, a green filter pattern g, and a blue filter pattern b. In some embodiments, the filter element CF may further include filter patterns of other colors. In some embodiments, the black matrix is located between filter patterns of different colors.

The filter element CF has an opening 02 in the lens area LA. Therefore, light entering the liquid crystal display device 10 from the lens area LA of the surface s1 is less likely to be changed in color by the filter element CF.

The insulating layer OC is located on the filter element CF. In this embodiment, the insulating layer OC covers the display area AA and the lens area LA of the upper substrate SB1 as an example, but the invention is not limited thereto. In other embodiments, the insulating layer OC may not cover the lens area LA of the upper substrate SB1, or it may be said that the insulating layer OC may expose the opening O2 of the filter element CF.

The upper electrode E1 is located in the lens area LA of the upper substrate SB1. In this embodiment, the upper electrode E1 is located on the insulating layer OC, but the invention is not limited thereto. In other embodiments, the insulating layer OC may be located between the upper electrode E1 and the liquid crystal layer L. In other embodiments, the insulating layer OC is not provided in the lens area LA, and the upper electrode E1 is provided on the upper substrate SB1 and is located in the opening O2 of the filter element CF.

The pixel array AL is located between the upper substrate SB1 and the lower substrate SB2. For example, the pixel array AL in this embodiment is located on the lower substrate SB2, but the present invention is not limited thereto. In other embodiments, the pixel array AL may also be located on the upper substrate SB1. The pixel array AL includes, for example, multiple scan lines, multiple data lines, and multiple pixel structures. In this embodiment, the pixel array AL is disposed on the display area AA of the lower substrate SB2, and is not disposed on the lens area LA, thereby preventing the pixel array AL from interfering with the image sensing module CS receiving images, however The invention is not limited to this.

Although in this embodiment, the filter element CF and the pixel array AL are respectively disposed on the upper substrate SB1 and the lower substrate SB2 as an example, the present invention is not limited to this. In other embodiments, the filter element CF and the pixel array AL can both be located on the upper substrate SB1 or the lower substrate SB2, and constitute a color filter on array (COA) structure.

The insulating layer PL is located on the lower substrate SB2 and is located in the lens area LA of the lower substrate SB2. In some embodiments, the insulating layer PL is formed together with the insulating layer in the pixel array AL, for example. For example, the pixel array AL includes an insulating layer for separating different conductive elements, and the insulating layer in the pixel array AL may extend from the display area AA to the lens area LA to form the insulating layer PL.

The lower electrode E2 is located in the lens area LA of the lower substrate SB2. In this embodiment, the insulating layer PL is located between the lower electrode E2 and the lower substrate SB2, but the invention is not limited thereto. In other embodiments, the insulating layer PL may be located between the lower electrode E2 and the liquid crystal layer L. In other embodiments, the insulating layer PL is not provided on the lens area LA of the lower substrate SB2, and the lower electrode E2 is provided on the lower substrate SB2. Part of the liquid crystal layer L is sandwiched between the upper electrode E1 and the lower electrode E2.

In some embodiments, the lower electrode E2 is formed together with the pixel electrodes in the pixel array AL, for example.

In some embodiments, the liquid crystal display device 10 further includes an alignment layer PI1 and an alignment layer PI2. The alignment layer PI1 is located on the upper substrate SB1 and covers the display area AA and the lens area LA of the upper substrate SB1. The alignment layer PI1 is located between the upper electrode E1 and the liquid crystal layer L. The alignment layer PI2 is located on the lower substrate SB2 and covers the display area AA and the lens area LA of the lower substrate SB2. The alignment layer PI2 is located between the lower electrode E2 and the liquid crystal layer L. In this embodiment, since there is only the alignment layer PI1 between the upper electrode E1 and the liquid crystal layer L, and there is only the alignment layer PI2 between the lower electrode E2 and the liquid crystal layer L, only the upper electrode E1 and/or the lower layer The electrode E2 can control the rotation direction of the liquid crystal molecules in the liquid crystal layer L by applying a small voltage.

The image sensing module CS is disposed corresponding to the lens area LA of the lower substrate SB2. The image sensing module CS is provided corresponding to the opening O1 of the lower polarizing layer P2. In this embodiment, the liquid crystal display device 10 further includes a lens module LS between the image sensing module CS and the lower substrate SB2, but the invention is not limited thereto.

In this embodiment, the upper electrode E1 and the lower electrode E2 can control the turning of the liquid crystal molecules in the liquid crystal layer L, so that the liquid crystal layer L in the lens area LA has the function of a convex lens or a concave lens. Outside light enters the liquid crystal display device 10 from the surface s1, and is then converted into polarized light by the upper polarizing layer P1. The polarized light passes through the liquid crystal layer L and the lens module LS in the lens area LA, and then is received by the image sensing module CS.

In this embodiment, since the liquid crystal layer L in the lens area LA has the function of a convex lens or a concave lens, the liquid crystal layer L in the lens area LA can be used in conjunction with the lens module LS. The lens module LS can be disposed outside the lower substrate SB2, so there is no need to drill holes in the lens area LA to set the lens module LS. In other words, in this embodiment, it is not necessary to perform the drilling process on the liquid crystal display device 10 and it can have good image sensing quality. In some embodiments, the liquid crystal layer L in the lens area LA can directly replace the lens module LS, further reducing the thickness of the liquid crystal display device 10.

FIG. 2A is a schematic top view of a lower electrode and corresponding wires according to an embodiment of the invention. 2B is a schematic bottom view of an upper electrode and corresponding wires according to an embodiment of the invention. It must be noted here that the embodiments of FIGS. 2A and 2B continue to use the element numbers and partial contents of the embodiments of FIGS. 1A to 1C, wherein the same or similar reference numbers are used to indicate the same or similar elements, and the same is omitted Description of technical content. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

2A and 2B, the upper electrode E1 includes an electrode ring ER and a central electrode CE, at least part of the central electrode CE is located in the center of the electrode ring ER.

In this embodiment, the electrode ring ER and the central electrode CE are electrically connected to the lead C1 and lead C2, respectively. The electrode ring ER has an opening H corresponding to the wire C2. The electrode ring ER and the center electrode CE are separated from each other, and different voltages can be applied. The lower electrode E2 substantially overlaps the electrode ring ER and the central electrode CE, and the lower electrode E2 is electrically connected to the lead C3. The electrode ring ER and the central electrode CE may be formed by patterning the same conductive material layer, but the invention is not limited thereto.

Although in the present embodiment, the above electrode E1 includes the electrode ring ER and the center electrode CE, the invention is not limited thereto. In other embodiments, the lower electrode E2 includes an electrode ring ER and a central electrode CE. In other words, the shapes of the upper electrode E1 and the lower electrode E2 can be swapped with each other.

3 is a schematic bottom view of an upper electrode and corresponding wires according to an embodiment of the invention. It must be noted here that the embodiment of FIG. 3 uses the element numbers and partial contents of the embodiments of FIGS. 2A and 2B, wherein the same or similar reference numbers are used to represent the same or similar elements, and the same technical content is omitted. Instructions. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

Please refer to FIG. 3. In this embodiment, the upper electrode E1 further includes a high-resistance material HR. The high-resistance material HR is located in the middle of the electrode ring ER. For example, the high-resistance material HR is located between the electrode ring ER and the central electrode CE.

The high-resistance material HR helps the upper electrode E1 generate a gradual electric field. The high-resistance material HR is, for example, an inorganic substance, for example, niobium oxide (Nb2Ox) or other suitable materials. In some embodiments, the high-resistance material HR is, for example, an organic substance, for example, a material including poly 3,4-ethylenedioxythiophene (PEDOT) or other suitable materials. In some embodiments, the high-resistance material HR is, for example, a mixture of organic matter and inorganic matter.

Although in this embodiment, the above electrode E1 includes the electrode ring ER, the central electrode CE, and the high-resistance material HR as an example, the present invention is not limited thereto. In other embodiments, the lower electrode E2 includes an electrode ring ER, a central electrode CE, and a high-resistance material HR. In other words, the shapes of the upper electrode E1 and the lower electrode E2 can be swapped with each other.

4 is a schematic bottom view of an upper electrode according to an embodiment of the invention. It must be noted here that the embodiment of FIG. 4 uses the element numbers and partial contents of the embodiment of FIG. 3, wherein the same or similar reference numerals are used to indicate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

Referring to FIG. 4, in this embodiment, the upper electrode E1 does not include the center electrode CE, and the electrode ring ER includes a closed ring electrode.

In this embodiment, the electric field on the high-resistance material HR gradually changes with the position of the electrode ring ER. It can also be said that the high-resistance material HR helps the upper electrode E1 to form a gradual electric field. Therefore, a gradual electric field can be generated without additionally providing the central electrode CE.

Although in the present embodiment, the above electrode E1 includes a closed ring electrode and a high-resistance material HR as an example, the present invention is not limited thereto. In other embodiments, the lower electrode E2 includes a closed ring electrode and a high-resistance material HR. In other words, the shapes of the upper electrode E1 and the lower electrode E2 can be swapped with each other.

5A is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. 5B is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. The embodiments of FIGS. 5A and 5B follow the element numbers and partial contents of the embodiments of FIGS. 2A and 2B, wherein the same or similar reference numerals are used to indicate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

FIGS. 5A and 5B respectively operate the upper electrode E1 and the lower electrode E2 in the liquid crystal display device 20 in different ways. The liquid crystal molecules LC in the liquid crystal layer L will rotate as the electric field E changes. In this embodiment, the liquid crystal layer L includes positive type liquid crystal as an example. In the present embodiment, the liquid crystal having an ordinary refractive index (n _o) and extraordinary refractive index (n _e), i.e. having a birefringence _{(Δn, n e -n o)} . When the positive type liquid crystal is rotated by the vertical electric field E, due to the gradual electric field E, the refractive index of the liquid crystal molecules LC at the edge of the lens area LA and the center are different, thereby forming a lens effect. When the birefringence (Δn) ratio of the positive type liquid crystal is larger, the liquid crystal layer L from the edge of the lens area LA to the center can have a greater difference in refractive index, thereby enabling the liquid crystal layer L in the lens area LA to change The wider the focal length range.

FIG. 5A is a schematic diagram of the liquid crystal layer L in the lens area LA in a concave lens mode. Referring to FIG. 5A, a first voltage is applied to the center electrode CE, a second voltage is applied to the electrode ring ER, and a third voltage is applied to the lower electrode E2. The first voltage is greater than the second voltage and the third voltage. For example, the second voltage and the third voltage are 0 volts, and the first voltage is 5 volts, but the invention is not limited thereto. In the concave lens mode, the liquid crystal layer L in the lens area LA can amplify the light-receiving viewing angle to obtain a wide viewing angle effect.

FIG. 5B is a schematic diagram of the liquid crystal layer L in the lens area LA in a convex lens mode. Please refer to FIG. 5B, a first voltage is applied to the central electrode CE, a second voltage is applied to the electrode ring ER, and a third voltage is applied to the lower electrode E2. The second voltage is greater than the first voltage and the third voltage. For example, the first voltage and the third voltage are 0 volts, and the second voltage is 5 volts, but the invention is not limited to this. The liquid crystal layer L in the lens area LA can assist the lens module LS to zoom in the convex lens mode, so that the zoom and macro effects of the lens module LS are better.

In some embodiments, when the same voltage is applied to the central electrode CE, the electrode ring ER, and the lower electrode E2, the liquid crystal layer L in the lens area LA is in a planar lens mode. For example, 0 volts is applied to the center electrode CE, the electrode ring ER, and the lower electrode E2.

6 is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. In the embodiment of FIG. 6, the element numbers and partial contents of the embodiments of FIGS. 5A and 5B are used, wherein the same or similar reference numerals are used to indicate the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

The main difference between the liquid crystal display device 30 of FIG. 6 and the display panel 20 of FIG. 5A is that the lens area LA of the liquid crystal display device 30 does not have the insulating layer OC and the insulating layer PL.

Since there is no insulating layer OC and insulating layer PL in the lens area LA, the liquid crystal layer L in the lens area LA of the liquid crystal display device 30 may have a larger thickness X. And in this embodiment, since there is only the alignment layer PI1 between the upper electrode E1 and the liquid crystal layer L, and there is only the alignment layer PI2 between the lower electrode E2 and the liquid crystal layer L, only the upper electrode E1 and/or The lower electrode E2 can control the rotation direction of the liquid crystal molecules in the liquid crystal layer L by applying a smaller voltage.

7 is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. In the embodiment of FIG. 7, the element numbers and partial contents of the embodiments of FIGS. 5A and 5B are used, wherein the same or similar reference numerals are used to indicate the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

The main difference between the liquid crystal display device 40 of FIG. 7 and the display panel 20 of FIG. 5A is that the insulating layer OC of the liquid crystal display device 40 is located between the upper electrode E1 and the alignment layer PI1, and the insulating layer PL is located between the lower electrode E2 and the alignment layer PI2 between.

The insulating layer OC is located between the upper electrode E1 and the alignment layer PI1, and the insulating layer PL is located between the lower electrode E2 and the alignment layer PI2. Therefore, when rubbing alignment is performed on the alignment layer PI1 and the alignment layer PI2, It is less likely to damage the upper electrode E1 and the lower electrode E2, thereby improving the quality of the liquid crystal lens.

8 is a schematic cross-sectional view of a liquid crystal display device according to an embodiment of the invention. In the embodiment of FIG. 8, the element numbers and partial contents of the embodiments of FIGS. 1A to 1C are used, wherein the same or similar reference numerals are used to indicate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

The main difference between the liquid crystal display device 50 of FIG. 8 and the display panel 10 of FIG. 1C is that the thickness X1 of the liquid crystal layer L of the display panel 50 in the display area AA is different from the thickness X2 of the liquid crystal layer L in the lens area LA.

The range of the focal length of the liquid crystal lens will be affected by the thickness of the liquid crystal layer. In this embodiment, the thickness X2 of the liquid crystal layer L in the lens area LA can be adjusted by adjusting the thickness of the insulating layer OC and/or the insulating layer PL in the lens area LA.

In some embodiments, since the thickness X1 of the liquid crystal layer L in the display area AA is different from the thickness X2 of the liquid crystal layer L in the lens area LA, the alignment layer PI1 and the alignment layer PI2 are at the junction of the display area AA and the lens area LA There will be a break. In some embodiments, the optical alignment technique may be used to align the alignment layer PI1 and the alignment layer PI2 to avoid the problem of poor alignment due to breakage when using a felt or roller for brush alignment.

9 is a schematic cross-sectional view of a liquid crystal display device according to an embodiment of the invention. In the embodiment of FIG. 9, the element reference numerals and partial contents of the embodiment of FIG. 8 are used, wherein the same or similar reference numerals are used to represent the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

The main difference between the liquid crystal display device 60 of FIG. 9 and the display panel 50 of FIG. 8 is that the liquid crystal layer L of the liquid crystal display device 60 includes a first liquid crystal material layer L1 in the display area AA and a second liquid crystal in the lens area LA Material layer L2.

The liquid crystal display device 60 further includes a sealant SL located between the display area AA and the lens area LA. The sealant SL separates the first liquid crystal material layer L1 and the second liquid crystal material layer L2.

In this embodiment, the material of the first liquid crystal material layer L1 may be different from the material of the second liquid crystal material layer L2.

In some embodiments, the birefringence (Δn) of the first liquid crystal material layer L1 is different from the birefringence (Δn) of the second liquid crystal material layer L2. Using the second liquid crystal material layer L2 with a large birefringence (Δn) can increase the zoom range of the liquid crystal lens.

In some embodiments, the second liquid crystal material layer L2 includes positive type liquid crystal, and the first liquid crystal material layer L1 includes negative type liquid crystal. Using positive type liquid crystal as the second liquid crystal material layer L2 in the lens area LA, since the double refractive index of the positive type liquid crystal is large, the zoom range of the liquid crystal lens can be improved. By using negative type liquid crystal as the first liquid crystal material layer L1 in the display area AA, the contrast of the display area AA of the liquid crystal display device 60 can be improved.

10 is a schematic cross-sectional view of a liquid crystal display device according to an embodiment of the invention. In the embodiment of FIG. 10, the element numbers and partial contents of the embodiments of FIGS. 1A to 1C are used, wherein the same or similar reference numerals are used to indicate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.

The main difference between the liquid crystal display device 70 of FIG. 10 and the display panel 10 of FIG. 1C is that the liquid crystal display device 70 does not include the lens module LS.

By adjusting the operating voltage of the upper electrode E1 and the lower electrode E2, the liquid crystal layer L in the lens area LA can have a zoom function. Therefore, the liquid crystal layer L of the liquid crystal display device 70 can directly replace the function of the lens module, which helps to reduce The overall size of the device, and the liquid crystal lens has the advantages of fast zoom (electrically controlled zoom).

In summary, in at least one embodiment of the present invention, the liquid crystal layer in the lens area of the liquid crystal display device has the function of a liquid crystal lens, so there is no need to dispose the lens module in the liquid crystal display device. The image sensing quality can save the drilling process and avoid the problems caused by the drilling process in the liquid crystal display device.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

10, 20, 30, 40, 50, 60, 70: liquid crystal display device AA: display area AL: pixel array b: blue filter pattern C1, C2, C3: wire CE: central electrode CF: filter element CS : Image sensing module E: Electric field E1: Upper electrode E2: Lower electrode ER: Electrode ring g: Green filter pattern H: Opening HR: High resistance material L: Liquid crystal layer L1: First liquid crystal material layer L2: No. Two liquid crystal material layers LA: lens area LC: liquid crystal molecules LS: lens module O1: opening O2: opening OC, PL: insulating layer P1: upper polarizing layer P2: lower polarizing layer PI1, PI2: alignment layer r: red filter Light pattern SB1: upper substrate SB2: lower substrate SL: sealant s1: surface X, X1, X2: thickness

FIG. 1A is a schematic front view of an upper substrate of a liquid crystal display device according to an embodiment of the invention. 1B is a schematic front view of a lower substrate of a liquid crystal display device according to an embodiment of the invention. Fig. 1C is a schematic cross-sectional view taken along section line aa' of Fig. 1A. FIG. 2A is a schematic diagram of a lower electrode and corresponding wires according to an embodiment of the invention. 2B is a schematic diagram of an upper electrode and corresponding wires according to an embodiment of the invention. FIG. 3 is a schematic diagram of an upper electrode and corresponding wires according to an embodiment of the invention. FIG. 4 is a schematic diagram of an upper electrode and corresponding wires according to an embodiment of the invention. 5A is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. 5B is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. 6 is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. 7 is a schematic cross-sectional view of a lens area of a liquid crystal display device according to an embodiment of the invention. 8 is a schematic cross-sectional view of a liquid crystal display device according to an embodiment of the invention. 9 is a schematic cross-sectional view of a liquid crystal display device according to an embodiment of the invention. 10 is a schematic cross-sectional view of a liquid crystal display device according to an embodiment of the invention.

10: Liquid crystal display device AA: display area AL: pixel array b: blue filter pattern CF: filter element CS: image sensing module E1: upper electrode E2: lower electrode g: green filter pattern L: liquid crystal Layer LA: lens area LS: lens module O1: opening O2: opening OC, PL: insulating layer P1: upper polarizing layer P2: lower polarizing layer PI1, PI2: alignment layer r: red filter pattern SB1: upper substrate SB2 : Lower substrate s1: surface

Claims (15)

A liquid crystal display device has a display area and a lens area, and includes: an upper substrate; an upper polarizing layer located on the upper substrate and covering the display area and the lens area; an upper electrode located on the upper substrate The lens area; the lower substrate facing the upper substrate; the lower polarizing layer located on the lower substrate and covering the display area; the lower polarizing layer has an opening in the lens area; the lower electrode is located on the lower substrate The lens area; a liquid crystal layer between the upper substrate and the lower substrate, wherein the thickness of the liquid crystal layer in the display area is different from the thickness of the liquid crystal layer in the lens area; and an image sensing module , Corresponding to the lens area of the lower substrate. A liquid crystal display device as described in item 1 of the patent application range, wherein the liquid crystal layer includes a positive type liquid crystal. The liquid crystal display device as described in item 1 of the patent application range, wherein the liquid crystal layer includes a first liquid crystal material layer located in the display area and a second liquid crystal material layer located in the lens area The material is different from the material of the second liquid crystal material layer. The liquid crystal display device of claim 3, wherein the first liquid crystal material layer has a birefringence different from the second liquid crystal material layer. The liquid crystal display device of claim 3, wherein the first liquid crystal material layer is a negative type liquid crystal, and the second liquid crystal material layer is a positive type liquid crystal. The liquid crystal display device as described in item 3 of the patent application scope further includes a sealant located between the display area and the lens area. The liquid crystal display device as described in item 1 of the patent application range, wherein one of the upper electrode and the lower electrode includes an electrode ring. The liquid crystal display device according to item 7 of the patent application scope, wherein the one of the upper electrode and the lower electrode further includes a central electrode, and at least a part of the central electrode is located at the center of the electrode ring. The liquid crystal display device as recited in item 7 of the patent application range, wherein the one of the upper electrode and the lower electrode further includes a high-resistance material, and the electrode ring surrounds the high-resistance material. The liquid crystal display device as described in item 7 of the patent application scope, wherein the electrode ring system is a closed ring shape. The liquid crystal display device according to item 1 of the patent application scope further includes a filter element located between the upper substrate and the lower substrate, wherein the filter element has an opening in the lens area. The liquid crystal display device as described in item 1 of the scope of the patent application further includes an alignment layer between the upper electrode and the liquid crystal layer. The liquid crystal display device according to item 12 of the patent application scope further includes an insulating layer between the upper electrode and the alignment layer. The liquid crystal display device described in item 1 of the patent application scope further includes an alignment layer between the lower electrode and the liquid crystal layer. The liquid crystal display device described in item 14 of the patent application scope further includes an insulating layer between the lower electrode and the alignment layer.

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