Display module and display device including the same

Abstract

A display module and a display apparatus including the same are provided. The display module can include a display panel including a plurality of pixels including first type pixels, second type pixels, and third type pixels, and a lens array disposed on a first face of the display panel and having an inclination angle, the first type pixels and the second type pixels being disposed adjacent to each other in a second direction, the third type pixels being disposed adjacent to the first type pixels and the second type pixels in a first direction.

Description

TECHNICAL FIELD

[0001] The present application relates to a display module that can display a three-dimensional image and a display apparatus including the same. BACKGROUND

[0002] Three-dimensional display technology is applied to various image display fields such as movies, TVs, portable phones, etc. The ultimate goal of three-dimensional display is to make a person feel as if he or she is in a stereoscopic actual environment, and for this reason, various technologies such as a stereoscopic sound method, a multi-viewpoint method, etc. are being researched. Among them, a light field method can more accurately reproduce three-dimensional spatial information.

[0003] Light generated by a display panel can form a light field through a lens. In recent years, in order to improve the display quality of a three-dimensional image, research on changing the arrangement method (e.g., inclination) of a lens is being conducted. SUMMARY

[0004] The present application relates to a display module that can display a three-dimensional image and a display apparatus including the same.

[0005] According to one feature of the present application for achieving the above-described object, a display module includes a display panel including a plurality of pixels having a first type pixel, a second type pixel, and a third type pixel, and a lens array disposed at a first face of the display panel and having an inclination angle, the first type pixel and the second type pixel being disposed adjacent to each other in a second direction, the third type pixel being disposed adjacent to the first type pixel and the second type pixel in a first direction, a pitch of the third type pixel in the second direction being less than or equal to a sum of a pitch of the first type pixel in the second direction and a pitch of the second type pixel in the second direction.

[0006] In an exemplary embodiment, the inclination angle of the lens array can be determined as a value calculated by a mathematical expression Here, Ra is a first pitch of the first type pixel in the second direction, Rb is a second pitch of the first type pixel in the first direction, Ga is a third pitch of the second type pixel in the second direction, Bb is a fourth pitch of the third type pixel in the first direction, n is a natural number, and m is 0 or a natural number.

[0007] In an illustrative embodiment, it can be that a fifth pitch of the third type of pixel in the second direction is greater than either of the first pitch of the first type of pixel and the third pitch of the second type of pixel, and the fifth pitch is less than or equal to a sum of the first pitch and the third pitch.

[0008] In an illustrative embodiment, it can be that the first pitch and the second pitch of the first type of pixel, the third pitch of the second type of pixel, and the fourth pitch of the third type of pixel are identical to one another.

[0009] In an illustrative embodiment, it can be that, when the first pitch, the second pitch, the third pitch, and the fourth pitch are identical to one another, the tilt angle can be determined as a value calculated by

[0010] In an illustrative embodiment, it can be that the n and the m are natural numbers different from one another.

[0011] In an illustrative embodiment, it can be that the lens array includes a plurality of lens units arranged in the first direction, the plurality of lens units respectively corresponding to k (k is a natural number) pixels arranged in the first direction among the plurality of pixels.

[0012] In an illustrative embodiment, it can be that the k pixels corresponding to any one of the plurality of lens units and arranged in the first direction respectively correspond to any one of k viewpoints.

[0013] In an illustrative embodiment, it can be that the first type of pixel and the second type of pixel correspond to the same viewpoint or to different viewpoints from one another.

[0014] In an illustrative embodiment, it can be that the first type of pixel and the second type of pixel correspond to different viewpoints from the third type of pixel adjacent in the first direction.

[0015] In an illustrative embodiment, it can be that the lens array includes a cylindrical lens array.

[0016] In an illustrative embodiment, it can be that the first type of pixel emits red light, the second type of pixel emits green light, and the third type of pixel emits blue light.

[0017] ​Another embodiment of the present invention relates to a display device comprising: a display module including a display panel and a lens array, the display panel including a plurality of pixels including a first type pixel, a second type pixel, and a third type pixel, the lens array being arranged on a first surface of the display panel and having an inclination angle; and a panel driving circuit receiving an input image signal and providing an output image signal to the display panel. The first type pixel and the second type pixel are arranged adjacent to each other in a second direction, the third type pixel is arranged adjacent to the first type pixel and the second type pixel in a first direction, and the inclination angle is determined by the mathematical formula Here, Ra is a first spacing of the first type pixels in the second direction, Rb is a second spacing of the first type pixels in the first direction, Ga is a third spacing of the second type pixels in the second direction, Bb is a fourth spacing of the third type pixels in the first direction, n is a natural number, and m is 0 or a natural number.

[0018] In an exemplary embodiment, the input image signal may include a plurality of viewpoint image signals respectively corresponding to a plurality of viewpoints.

[0019] In an exemplary embodiment, the panel driving circuit may include: a viewpoint reconfiguration unit, which outputs a viewpoint reconfiguration image signal after reconfiguring the multiple viewpoint image signals in a viewpoint order corresponding to the tilt angle of the lens array; and an output conversion unit, which converts the viewpoint reconfiguration image signal into the output image signal that conforms to the pixel arrangement structure of the display panel.

[0020] In an exemplary embodiment, the first and second pitches of the first type pixels, the third pitch of the second type pixels, and the fourth pitch of the third type pixels may be identical to each other.

[0021] In an exemplary embodiment, when the first interval, the second interval, the third interval, and the fourth interval are the same as each other, the tilt angle may be determined as The calculated value.

[0022] In an exemplary embodiment, the lens array may include a plurality of lens units arranged in the first direction, and the plurality of lens units respectively correspond to k (k is a natural number) pixels arranged in the first direction among the plurality of pixels.

[0023] In an exemplary embodiment, the k pixels corresponding to any one of the plurality of lens units and arranged in the first direction may respectively correspond to any one of k viewpoints.

[0024] In an illustrative embodiment, the lens array can include a cylindrical lens array.

[0025] In an illustrative embodiment, the first type of pixels can emit red light, the second type of pixels can emit green light, and the third type of pixels can emit blue light.

[0026] (EFFECT OF INVENTION)

[0027] In the display module having the above-described configuration, the pixels of the display panel are arranged in an S-stripe pattern. The lens array can be arranged at an optimal tilt angle according to the first pitch of the pixels in the first direction and the second pitch of the pixels in the second direction. Accordingly, the display apparatus can display a three-dimensional image on the display panel in the S-stripe pattern. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a diagram illustrating a case where a user views a stereoscopic image through a display module according to an embodiment of the present application.

[0029] Figure 2 FIG. 2 is an exploded perspective view simply illustrating a display module according to an embodiment of the present application.

[0030] Figure 3 FIG. 3 is a diagram illustrating a cross section of a display module according to an embodiment of the present application.

[0031] Figure 4 FIG. 4 is a diagram for explaining a multi-view display method of a display module according to an embodiment of the present application.

[0032] Figure 5 FIG. 5 is a diagram illustrating a pixel arrangement of a display panel according to an embodiment of the present application.

[0033] Figure 6a FIG. 6 is a diagram illustrating a pixel array constituted by first to third type of pixels according to an embodiment of the present application. Figure 5

[0034] FIG. 7 is a diagram illustrating a first type of pixel according to an embodiment of the present application. Figure 6b Figure 6a FIG. 8 is a diagram illustrating a second type of pixel according to an embodiment of the present application.

[0035] Figure 7 FIG. 9 is a diagram illustrating a third type of pixel according to an embodiment of the present application. Figure 6a

[0036] FIG. 10 is a diagram illustrating a case where a lens array is overlaid on the pixel array according to an embodiment of the present application. Figure 8 Figure 6a FIG. 11 is a diagram illustrating a case where a first lens array is overlaid on the pixel array according to an embodiment of the present application.

[0037] Figure 9 Figure 6a ​​​The pixel array is arranged so as to overlap the second lens array.

[0038] Figure 10 The display panel is arranged so as to overlap the second lens array. Figure 6a The pixel array is arranged so as to overlap the third lens array.

[0039] Figure 11 The display panel is arranged so as to overlap the second lens array.

[0040] Figure 12 A plan view of a display panel according to an embodiment of the present application.

[0041] Figure 13 A block diagram illustrating a configuration of a panel drive circuit according to an exemplary embodiment of the present application.

[0042] Figure 14 A diagram illustrating an input image signal supplied from the outside to the panel drive circuit.

[0043] Figure 15 A diagram illustrating an input image signal supplied from the outside to the panel drive circuit. Figure 13 A diagram illustrating a viewpoint reconfiguration image signal output from the viewpoint reconfiguration unit and an output image signal output from the output conversion unit.

[0044] (Symbol Explanation)

[0045] DD: display device; DM: display module; DP: display panel; LZA: lens array; LZU: lens unit; PX: pixel; SDC: scan drive circuit; DC: panel drive circuit; U1: viewpoint reconfiguration unit; U2: output conversion unit. DETAILED DESCRIPTION

[0046] In the present specification, in the case where it is mentioned that a certain constituent element (or region, layer, portion, etc.) is located on, connected to, or combined with another constituent element, it means that it can be directly disposed / connected / combined on the other constituent element, or a third constituent element can be further disposed therebetween.

[0047] The same symbols refer to the same constituent elements. In addition, in each drawing, the thickness, ratio, and size of each constituent element are exaggerated for effective explanation of the technical content. "And / or" includes all one or more combinations of the relevant constituents that can be defined.

[0048] The terms first, second, etc. can be used to describe various constituent elements, but the constituent elements described should not be limited to the terms. The terms are used only for the purpose of distinguishing one constituent element from another. For example, a first constituent element can be named a second constituent element, and similarly, a second constituent element can be named a first constituent element, without departing from the scope of the present application. The singular form includes the plural form unless explicitly stated otherwise in the context.

[0049] In addition, the terms "below", "under", "above", "over", etc. are used to describe the connection relationship of the illustrated constituent elements. The terms are relative concepts, and are described based on the direction of the illustration.

[0050] The terms "include" or "have" should be understood to mean the presence of the described features, numbers, steps, operations, constituent elements, components, or combinations thereof, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0051] Unless defined differently, all terms used in the present specification (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. In addition, terms such as terms defined in generally used dictionaries should be interpreted in the context of the relevant technology, and, unless otherwise defined, are defined in the present specification.

[0052] Hereinafter, various embodiments of the present application will be described with reference to the accompanying drawings.

[0053] Figure 1 is a diagram illustrating a case in which a user views a stereoscopic image through a display module DM.

[0054] Referring to Figure 1 A "light field" is a concept that represents a state in which light is distributed in space through the distribution of light rays. With this concept, a three-dimensional space can be composed of an infinite number of light fields, in which light reflected or generated from an object is defined as a straight line passing through space to be reflected into a person's eye. An individual light field can be mathematically expressed, for example, using a five-dimensional plenoptic function (I(x, y, z, θ, φ)). That is, a light field can be marked as the brightness of a point on a specific plane in space through which a light ray passes, and the spatial directional angles (θ, φ) with respect to the direction in which the light ray is directed. A light field can be captured by digitizing the plenoptic function value of light passing through the specific plane in the above. That is, a light field can be captured for the brightness value of each angle (θ, φ) with respect to the coordinates (x, y, z) of a certain region.

[0055] That is, the direction of the light ray generated by the display module DM forms a light field toward a certain direction (viewpoint of observation), and the user U can view and listen to the objects OJ1, OJ2 in the form of a three-dimensional image according to the stereoscopic image information suitable for the direction of the light ray.

[0056] Figure 2 is a perspective view schematically showing a display module according to an embodiment of the present application.

[0057] Referring to Figure 2 , the display module DM can include a display panel DP and a lens array LZA. In the present embodiment, the display module DM can be a light field display module.

[0058] The display panel DP can include a plurality of pixels PX. The plurality of pixels PX can include, for example, first type pixels, second type pixels, and third type pixels. Further, the first type pixels can be pixels that emit red light, the second type pixels can be pixels that emit green light, and the third type pixels can be pixels that emit blue light. The pixels PX can be arranged in a matrix form in a first direction DR1 and a second direction DR2 substantially perpendicular to the first direction DR1. The display panel DP can be a plasma display panel, a liquid crystal display panel, or an organic light emitting display panel, etc. Figure 2 The first direction DR1 and the second direction DR2 shown can correspond to Figure 1 x and y of the spatial coordinates shown.

[0059] The lens array LZA is disposed on a first surface of the display panel DP. In the exemplary embodiment, the lens array LZA can be disposed on an upper surface of the display panel DP. That is, the lens array LZA can be disposed adjacent to a surface from which light is emitted by the display panel DP.

[0060] Figure 3 is a view schematically showing a cross section of the display module.

[0061] Referring to Figure 2 and Figure 3 , the lens array LZA is disposed on an upper surface of the display panel DP. The lens array LZA can include a plurality of lens units LZU. Light generated by the pixels PX of the display panel DP can form a light field through the lens units LZU of the lens array LZA.

[0062] Each of the lens units LZU can be constituted by an active lens. That is, each of the lens units LZU can generate an electric field according to a voltage applied to each electrode constituting each of the lens units LZU, and can thereby change the arrangement of liquid crystal molecules.

[0063] Each lens unit LZU transmits an image displayed on the display panel DP as it is in the two-dimensional display mode, and in the three-dimensional display mode, focuses and images each view point image in a corresponding view point region by using a diffraction and refraction phenomenon of light for a multi-viewpoint image output from the display panel DP.

[0064] The arrangement of the pixels PX of the display panel DP for forming a light field, the arrangement of each lens unit LZU constituting the lens array LZA, and the relative positional relationship between the pixels PX and each lens unit LZU can be changed in various ways.

[0065] Each lens unit LZU described below is a lenticular lens, but the present application is not limited thereto. Each lens unit LZU can be a microlens, and the shape of the microlens can have various shapes such as a circle, a polygon, and the like.

[0066] Figure 4 is a diagram for explaining a multi-viewpoint display method of a display module.

[0067] Referring to Figure 4 , the display panel DP includes a plurality of pixels PX. The lens array LZA includes a plurality of lens units LZU. One lens unit LZU can correspond to a plurality of pixels PX. In Figure 4 the example shown, one lens unit LZU corresponds to five pixels PX. In addition, the five pixels PX can output light corresponding to image signals of different view points from each other. The light output from the pixels PX can form different light fields from each other by being diffracted and / or refracted by the lens unit LZU, and thus three-dimensional images of the first view point VW1 to the fifth view point VW5 can be displayed.

[0068] The number of pixels PX corresponding to one lens unit LZU, the size of each of the pixels PX, and the arrangement order can be changed in various ways.

[0069] Figure 5 is a diagram illustrating the arrangement of pixels of a display panel as an example.

[0070] Referring to Figure 5The display panel DP includes a plurality of pixels. The plurality of pixels can include first type pixels PX11, PX12, PX13, second type pixels PX21, PX22, PX23, and third type pixels PX31, PX32, PX33. A remaining area of the display panel DP other than an area in which the first type pixels PX11, PX12, PX13, the second type pixels PX21, PX22, PX23, and the third type pixels PX31, PX32, PX33 are configured can be a black matrix BM. The black matrix BM blocks light that is not needed when an image is embodied. The black matrix BM blocks color mixing that can occur at edge positions of each pixel. A signal wiring can be configured at a lower portion of the black matrix BM.

[0071] The first type pixels PX11, PX12, PX13 can be pixels that emit red light R, the second type pixels PX21, PX22, PX23 can be pixels that emit green light G, and the third type pixels PX31, PX32, PX33 can be pixels that emit blue light B.

[0072] The first type pixels PX11, PX12, PX13 and the second type pixels PX21, PX22, PX23 are configured to be adjacent in the second direction DR2. The first type pixels PX11, PX12, PX13 and the second type pixels PX21, PX22, PX23 can be alternately configured one by one in the second direction DR2.

[0073] The third type pixels PX31 are configured to be adjacent to the first type pixels PX11 and the second type pixels PX21 in the first direction DR1, the third type pixels PX32 are configured to be adjacent to the first type pixels PX12 and the second type pixels PX22 in the first direction DR1, and the third type pixels PX33 are configured to be adjacent to the first type pixels PX13 and the second type pixels PX23 in the first direction DR1.

[0074] In an exemplary embodiment, lengths of the first type pixels PX11, PX12, PX13 and the second type pixels PX21, PX22, PX23 in the first direction DR1 and lengths in the second direction DR2 are the same. The third type pixels PX31, PX32, PX33 are respectively longer in the second direction DR2 than the lengths of the first type pixels PX11, PX12, PX13 and the second type pixels PX21, PX22, PX23. That is, areas of the third type pixels PX31, PX32, PX33 are each greater than areas of the first type pixels PX11, PX12, PX13 and the second type pixels PX21, PX22, PX23.

[0075] In an exemplary embodiment, a first separation distance BM1 between the first type pixel PX11 and the second type pixel PX21 in the second direction DR2 is substantially equal to a second separation distance BM2 between the second type pixel PX21 and the first type pixel PX12 in the second direction DR2.

[0076] In an exemplary embodiment, a fourth separation distance BM4 between the third-type pixel PX32 and the third-type pixel PX33 in the second direction DR2 is greater than a third separation distance BM3 between the third-type pixel PX31 and the third-type pixel PX32 in the second direction DR2. That is, the separation distances between the third-type pixels PX31, PX32, and PX33 may be different from each other.

[0077] like Figure 5 The pixel arrangement structure of the display panel DP shown may be referred to as an "S-stripe structure." The display panel DP with the S-stripe structure has a high aperture ratio and can therefore be used in a vehicle display device. A vehicle may include a navigation display device for use in a navigation system or a door mirror (or rearview mirror) display device for displaying the image behind the vehicle. The navigation display device or the door mirror display device can provide a three-dimensional image to the user.

[0078] In the following description, for easy identification, the first type of pixel is labeled as PX1, the second type of pixel is labeled as PX2, and the third type of pixel is labeled as PX3 in the drawings for illustration.

[0079] Figure 6a This is an example to show the removal Figure 5 The black matrix BM of the display panel DP is shown in the figure, and the pixel array PXA is composed of only the first type pixels PX1 to the third type pixels PX3.

[0080] Figure 6b It is an enlarged representation Figure 6a FIG. 1 shows a diagram of first to third type pixels PX1 to PX3 .

[0081] Reference Figure 6a and Figure 6b, the first type pixels PX1 have a first spacing Ra in the second direction DR2 and a second spacing Rb in the first direction DR1. It can be that the first spacing Ra refers to the length of the first type pixels PX1 in the second direction DR2, and the second spacing Rb refers to the length of the first type pixels PX1 in the first direction DR1. In addition, the first spacing Ra can also refer to the distance between the center of the first type pixel PX1 in the second direction DR2 and the center of the second type pixel PX2 in the second direction DR2. In this case, the first spacing Ra can refer to the length of the first type pixel PX1 in the second direction DR2 and the first separation distance BM1 (refer to Figure 5 The second interval Rb may refer to a distance between a center of the first type pixel PX1 in the first direction DR1 and a center of the third type pixel PX3 in the first direction DR1.

[0082] The second-type pixels PX2 have a third spacing Ga in the second direction DR2 and a sixth spacing Gb in the first direction DR1. The third spacing Ga may refer to the length of the second-type pixels PX2 in the second direction DR2, and the sixth spacing Gb may refer to the length of the second-type pixels PX2 in the first direction DR1. Furthermore, the third spacing Ga may refer to the distance between the center of the second-type pixel PX2 in the second direction DR2 and the center of the first-type pixel PX1 in the second direction DR2. The sixth spacing Gb may refer to the distance between the center of the second-type pixel PX2 in the first direction DR1 and the center of the third-type pixel PX3 in the first direction DR1.

[0083] The third-type pixels PX3 have a fourth spacing Bb in the first direction DR1 and a fifth spacing Ba in the second direction DR2. The fourth spacing Bb may refer to the length of the third-type pixels PX3 in the first direction DR1, and the fifth spacing Ba may refer to the length of the third-type pixels PX3 in the second direction DR2. Furthermore, the fourth spacing Bb may refer to the distance between the center of the third-type pixel PX3 in the first direction DR1 and the center of the first-type pixel PX1 in the first direction. The fifth spacing Ba may refer to the distance between the centers of two adjacent third-type pixels PX3.

[0084] The fifth interval Ba is greater than each of the first interval Ra and the third interval Ga, and is less than or equal to the sum of the first interval Ra and the third interval Ga. Figure 5 In the example shown, the lengths of the third type pixels PX31, PX32, and PX33 in the second direction DR2 are less than the sum of the lengths of the corresponding first type pixels among the first type pixels PX11, PX12, and PX13 and the corresponding second type pixels among the second type pixels PX21, PX22, and PX23 in the second direction DR2.Figure 6a and Figure 6b In the above, it is assumed that the length of the third type pixel PX3 in the second direction DR2, that is, the fifth pitch Ba, is equal to the sum of the first pitch Ra and the third pitch Ga. In a case where the fifth pitch Ba refers to the distance between the centers of two adjacent third type pixels PX3, the fifth pitch Ba can be equal to the sum of the first pitch Ra and the third pitch Ga.

[0085] Figure 7 As an example, it is assumed that the pixel array PXA is configured as shown in Figure 6a In the case where the lens array LZA0 is laminated on the pixel array PXA as shown in

[0086] Referring to Figure 7 , the lens array LZA0 includes a plurality of lens units LZU0 arranged in the first direction DR1. Each lens unit LZU0 of the lens array LZA0 is configured to overlap three pixels in the first direction DR1. That is, one lens unit LZU0 corresponds to three pixels in the first direction DR1, and thus the pitch LP of the lens units LZU0 can be 3 x Rb (refer to Figure 6b ). Here, Rb = Gb = Bb.

[0087] In Figure 7 , the numbers written in the first type pixel PX1 to the third type pixel PX3 indicate the viewpoint number of the image signal to be supplied to the first type pixel PX1 to the third type pixel PX3. For example, the number "1" written in the first type pixel PX1 indicates the image signal corresponding to the first viewpoint, and the number "3" written in the third type pixel PX3 indicates the image signal corresponding to the third viewpoint.

[0088] In the embodiment shown in Figure 7 , the case where the pixel array PXA can output the image signals corresponding to the first viewpoint to the third viewpoint is described, but the present application is not limited thereto. For example, the pixel array PXA can output the image signals corresponding to k (k is a natural number) viewpoints, in which case it can be configured such that one lens unit LZU0 corresponds to k pixels in the first direction DR1.

[0089] In the example shown in Figure 7 , 1 / 3 of the first type pixel PX1 to the third type pixel PX3 constituting the pixel array PXA provide the image signal of the first viewpoint, 1 / 3 provide the image signal of the second viewpoint, and 1 / 3 provide the image signal of the third viewpoint. That is, the resolution of each viewpoint is 1 / 3 of the number of pixels, and thus the resolution of the three-dimensional image is reduced.

[0090] Figure 8 As an example, it is assumed that the pixel array PXA is configured as shown in Figure 6aThe pixel array PXA is arranged so as to overlap the first lens array LZA1.

[0091] Referring to Figure 8 , each first lens unit LZU1 of the first lens array LZA1 can have a shape tilted at a first tilt angle A1 with respect to a reference line RL. The reference line RL can be a virtual line parallel to a second direction DR2 that is perpendicular to the first direction DR1. The pitch LP of the first lens unit LZU1 can be 3 x Rb (refer to Figure 6b ). Here, Rb = Gb = Bb.

[0092] The first tilt angle A1 can be calculated according to mathematical expression 1.

[0093] [mathematical expression 1]

[0094]

[0095] As explained in Figure 6b , Ra is a first pitch of the first type of pixels PX1 in the second direction DR2, Rb is a second pitch of the first type of pixels PX1 in the first direction DR1, Ga is a third pitch of the second type of pixels PX2 in the second direction DR2, and Bb is a fourth pitch of the third type of pixels PX3 in the first direction DR1. In addition, n is a natural number, and m is 0 or a natural number. n is the number of the first type of pixels PX1 in the second direction DR2, and m is the number of the second type of pixels PX2 in the second direction DR2.

[0096] If Ra = Rb = Ga = Bb is assumed, the first tilt angle A1 when n = 6 and m = 5 is as in mathematical expression 2.

[0097] [mathematical expression 2]

[0098]

[0099] In Figure 8 , H1 = 11 and W1 = 2 correspond to tan -1 (2 / 11).

[0100] H1 is the number of pixels arranged in the second direction DR2 that correspond to tan -1 (2 / 11), and W1 is the number of pixels arranged in the first direction DR1 that correspond to tan -1 (2 / 11).

[0101] Figure 9 As an example, the pixel array PXA is arranged so as to overlap the second lens array LZA2 as shown in Figure 6a .

[0102] Referring toFigure 9 Each second lens unit LZU2 of the second lens array LZA2 can have a shape tilted at a second tilt angle A2 with respect to the reference line RL, respectively. The reference line RL can be a virtual line parallel to a second direction DR2 that is perpendicular to the first direction DR1. The pitch LP of the second lens unit LZU2 can be 3 x Rb (refer to Figure 6b ). Where Rb = Gb = Bb.

[0103] If Ra = Rb = Ga = Bb of mathematical formula 1 is assumed, the second tilt angle A2 is as mathematical formula 3 when n = 5, m = 4.

[0104] [mathematical formula 3]

[0105]

[0106] In Figure 9 , H2 = 9, W2 = 2 corresponding to tan -1 (2 / 9).

[0107] H2 is the number of pixels arranged in the second direction DR2 corresponding to tan -1 (2 / 9), and W2 is the number of pixels arranged in the first direction DR1 corresponding to tan -1 (2 / 9).

[0108] Figure 10 As an example, a case in which the third lens array LZA3 is arranged overlapping the pixel array PXA shown in Figure 6a is shown.

[0109] Referring to Figure 10 , each third lens unit LZU3 of the third lens array LZA3 can have a shape tilted at a third tilt angle A3 with respect to the reference line RL, respectively. The reference line RL can be a virtual line parallel to a second direction DR2 that is perpendicular to the first direction DR1. The pitch LP of the third lens unit LZU3 can be 3 x Rb (refer to Figure 6b ). Where Rb = Gb = Bb.

[0110] If Ra = Rb = Ga = Bb of mathematical formula 1 is assumed, the third tilt angle A3 is as mathematical formula 4 when n = 4, m = 4.

[0111] [mathematical formula 4]

[0112]

[0113] In Figure 10 , H3 = 8, W3 = 2 corresponding to tan -1 (2 / 8).

[0114] H3 is the number of pixels arranged in the second direction DR2 corresponding to tan -1 (2 / 8), and W3 is the number of pixels arranged in the first direction DR1 corresponding to tan -1 (2 / 8).

[0115] As explained in Figure 8 to Figure 10 , it can be assumed that Ra = Rb = Ga = Bb of mathematical expression 1, and the tilt angle A (e.g., Al, A2, A3) can be set according to the settings of n and m. Also, in Figure 8 to Figure 10 , the numbers written in the first to third type pixels PX1 to PX3 indicate the viewpoint numbers of the image signals to be provided to the first to third type pixels PX1 to PX3. According to the tilt angles (Al, A2, A3) of the first to third lens arrays LZA1 to LZA3, the viewpoints of the image signals to be provided to the first to third type pixels PX1 to PX3 are optimized, so that the display module DM can display the best three-dimensional image. Here, n and m are each a natural number, and n and m can be the same as or different from each other.

[0116] Figure 11 As an example, the second lens array LZA2 is arranged to overlap the display panel DP.

[0117] Referring to Figure 11 , each second lens unit LZU2 of the second lens array LZA2 is arranged to overlap three pixels in the first direction DR1. That is, one second lens unit LZU2 corresponds to three pixels in the first direction DR1, and thus the pitch LP of the second lens unit LZU2 can be 3 x Rb (refer to Figure 6b ). Here, Rb = Gb = Bb.

[0118] In Figure 11 , the numbers written in the first to third type pixels PX1 to PX3 indicate the viewpoint numbers of the image signals to be provided to the first to third type pixels PX1 to PX3. For example, the number "1" written in the first and second type pixels PX1 and PX2 indicates an image signal corresponding to the first viewpoint, and the number "3" written in the third type pixel PX3 indicates an image signal corresponding to the third viewpoint.

[0119] In Figure 11In the illustrated embodiment, each second lens unit LZU2 of the second lens array LZA2 has a tilt angle A = A2, and thus the first to third type pixels PX1 to PX3 corresponding to one second lens unit LZU2 can output image signals of different viewpoints from each other. For example, each first type pixel PX1 corresponding to one second lens unit LZU2 can output image signals of a first viewpoint, a second viewpoint, and a third viewpoint. Thus, the display quality of a three-dimensional image can be improved.

[0120] As Figure 11 indicated, in a case where the display panel DP is configured with the second lens array LZA2, the tilt angle A = A2, the number of pixels H = H2 = 9 in the second direction DR2, and the number of pixels W = W2 = 2 in the first direction DR1 can be set.

[0121] As Figure 11 indicated, the display panel DP can be configured with the first lens array LZA1 as Figure 8 indicated. In this case, the tilt angle A = A1, the number of pixels H = H1 = 11 in the second direction DR2, and the number of pixels W = W1 = 2 in the first direction DR1 can be set.

[0122] In addition, as Figure 11 indicated, the display panel DP can be configured with the third lens array LZA3 as Figure 10 indicated. In this case, the tilt angle A = A3, the number of pixels H = H3 = 8 in the second direction DR2, and the number of pixels W = W3 = 2 in the first direction DR1 can be set.

[0123] In addition, the first to third type pixels PX1 to PX3 can output image signals of viewpoints corresponding to the tilt angles A1, A2, A3 of the first to third lens arrays LZA1 to LZA3, respectively.

[0124] Figure 12 is a plan view of the display panel DP according to an embodiment of the present disclosure.

[0125] As Figure 12 indicated, the display panel DP can include a drive circuit SDC, a plurality of signal lines SGL (hereinafter referred to as signal lines), a plurality of signal pads DP-PD (hereinafter referred to as signal pads), and a plurality of pixels PX (hereinafter referred to as pixels).

[0126] The drive circuit SDC can include a scan drive circuit. The scan drive circuit generates a plurality of scan signals (hereinafter, referred to as scan signals), and sequentially outputs the scan signals to a plurality of scan lines SL (hereinafter referred to as scan lines) described later. The drive circuit SDC can also output other control signals to the pixels PX.

[0127] The driving circuit SDC may include a plurality of transistors formed by the same process as the driving circuit of the pixel PX, for example, a process of forming a P-type transistor having an LTPS (Low Temperature Polycrystalline Silicon) semiconductor layer or a process of forming an N-type transistor having an oxide semiconductor as a semiconductor layer.

[0128] The signal lines SGL include scan lines SL, data lines DL, power lines PL, and control signal lines CSL. The scan lines SL are connected to corresponding pixels PX among the plurality of pixels PX, and the data lines DL are connected to corresponding pixels PX among the plurality of pixels PX. The power lines PL are connected to the pixels PX. The control signal lines CSL can provide control signals to the drive circuit SDC.

[0129] The signal pad DP-PD is disposed adjacent to a portion of the non-display area DP-NDA. The stacked structure or constituent materials of the signal pad DP-PD can be formed in the same process without being differentiated from each other.

[0130] The display area DP-DA may be defined as an area where pixels PX are disposed. A plurality of electronic components are disposed in the display area DP-DA. Each electronic component includes an organic light emitting diode (OLED) included in each pixel PX and a pixel driving circuit connected thereto.

[0131] The pixel PX may include, for example, a first transistor T1, a second transistor T2, a capacitor CP, and an organic light emitting diode OLED. The pixel driving circuit only needs to include the first transistor T1 and the second transistor T2, and is not limited to Figure 12 In the embodiment shown, the first transistor T1 is connected to the scan line SL and the data line DL. The organic light emitting diode OLED receives a power voltage provided by the power line PL.

[0132] The organic light emitting diode OLED can emit any one of red light R, green light G, and blue light B according to at least one color of the light emitting layer, the conversion layer, and the color filter. The pixels PX can be referred to as first-type pixels PX1 to third-type pixels PX3 (refer to FIG. Figure 5 ) in either .

[0133] A panel driving circuit DC that controls an operation of the display panel DP can be configured on the circuit substrate PCB. The panel driving circuit DC can be mounted on the circuit substrate PCB in the form of an integrated chip. The circuit substrate PCB can include a circuit substrate pad PCB-PD that is electrically connected with the signal pad DP-PD. Although not illustrated, the circuit substrate PCB further includes a signal line that connects the circuit substrate pad PCB-PD and the panel driving circuit DC. In addition, the circuit substrate pad PCB-PD can include at least one output pad and at least one input pad.

[0134] The signal pad DP-PD of the display panel DP can be directly connected with the circuit substrate pad PCB-PD. In other embodiments, the signal pad DP-PD and the circuit substrate pad PCB-PD can be electrically connected through a connection substrate such as an anisotropic conductive film.

[0135] In other embodiments, the panel driving circuit DC can not be mounted on the circuit substrate PCB, but can be mounted on a non-display area DP-NDA of the display panel DP.

[0136] Figure 13 is a block diagram illustrating a configuration of the panel driving circuit DC according to an exemplary embodiment of the present application.

[0137] Referring to Figure 13 , the panel driving circuit DC includes a viewpoint reconfiguration unit U1 and an output conversion unit U2. In the embodiments of the present application, the term "unit" refers to a software component or a hardware component that performs a specific function. The hardware component can include, for example, an FPGA (field-programmable gate array) or an ASIC (application-specific integrated circuit). The software component can refer to executable code and / or data used by the executable code stored in a storage medium. Thus, the software component can be, for example, an object-oriented software component, a class component, and a job component, and can include a processor, a function, an attribute, a step, a subprogram, a program code segment, a driver, firmware, a microcode, circuit data, a database, a data structure, a table, an array, or a variable. The viewpoint reconfiguration unit U1 and the output conversion unit U2 can be recorded in the form of a computer program, and can include a non-volatile memory.

[0138] Figure 14 is a diagram illustrating an input image signal I_RGB provided from the outside to the panel driving circuit DC. Figure 15 is a diagram illustrating an output image signal I_RGB provided from the Figure 13A view point reconfiguration image signal V_RGB output by the view point reconfiguration unit U1 and an output image signal O_RGB output from the output conversion unit U2 are shown.

[0139] Referring to Figure 13 , Figure 14 and Figure 15 , an input image signal I_RGB supplied from an external host device (not shown) includes a first view point image signal V1_RGB to an n-th view point image signal Vn_RGB. The first view point image signal V1_RGB to the n-th view point image signal Vn_RGB are a plurality of view point image signals taken at different positions and / or angles from each other by a plurality of actual cameras or a plurality of virtual cameras. That is, the first view point image signal V1_RGB to the n-th view point image signal Vn_RGB can correspond to a first view point to an n-th view point, respectively.

[0140] The first view point image signal V1_RGB to the n-th view point image signal Vn_RGB include only one view point, respectively.

[0141] The view point reconfiguration unit U1 reconfigures the first view point image signal V1_RGB to the n-th view point image signal Vn_RGB into an image signal of one frame, thereby outputting a view point reconfiguration image signal V_RGB. The process of outputting the first view point image signal V1_RGB to the n-th view point image signal Vn_RGB as the view point reconfiguration image signal V_RGB can be referred to as mapping.

[0142] In Figure 15 , the first type pixel PX1 to the third type pixel PX3 are mapped into the view point reconfiguration image signal V_RGB corresponding to the image signal suitable for the view point as shown in Figure 11 when the second lens array LZA2 is overlaid on the display panel DP. The view point reconfiguration unit U1 can output the view point reconfiguration image signal V_RGB according to the tilt angle A of the lens array overlaid on the display panel DP (refer to Figure 12 ).

[0143] The output conversion unit U2 converts the view point reconfiguration image signal V_RGB into an output image signal O_RGB suitable for the display panel DP shown in Figure 5 . As described before, the display panel DP shown in Figure 5 includes a pixel arrangement of an "S-stripe structure". The output image signal O_RGB can be supplied to the pixels PX through data lines DL shown in Figure 12 .

[0144] The foregoing has been described with reference to the embodiments, but those skilled in the art will understand that various modifications and changes can be made thereto without departing from the scope of the present application as set forth in the claims. In addition, the embodiments disclosed in the present application are not intended to limit the technical idea of the present application, and it should be interpreted that all technical ideas within the scope of the claims and their equivalent scope are included in the scope of the present application.

Claims

1. A display module, comprising: A display panel including a plurality of pixels including a first type of pixels, a second type of pixels, and a third type of pixels; as well as The lens array is arranged on the first surface of the display panel and has an inclination angle. The first type pixels and the second type pixels are arranged adjacent to each other in a second direction, The third type of pixels are arranged adjacent to the first type of pixels and the second type of pixels in a first direction, The spacing of the third type pixels in the second direction is less than or equal to the sum of the spacing of the first type pixels in the second direction and the spacing of the second type pixels in the second direction, The tilt angle of the lens array is determined by the mathematical formula The calculated value, where Ra is a first spacing between the first type pixels in the second direction, Rb is a second spacing between the first type pixels in the first direction, Ga is a third spacing between the second type pixels in the second direction, Bb is a fourth spacing of the third type pixels in the first direction, n is a natural number, and m is 0 or a natural number, The first type pixels and the second type pixels have the same spacing distance in the second direction, and the third type pixels have different spacing distances in the second direction.

2. The display module according to claim 1, wherein The fifth spacing of the third type pixels in the second direction is greater than any one of the first spacing of the first type pixels and the third spacing of the second type pixels, and the fifth spacing is less than or equal to the sum of the first spacing and the third spacing.

3. The display module according to claim 1, wherein: When the first interval, the second interval, the third interval, and the fourth interval are identical to each other, the tilt angle may be determined by The calculated value. The display module according to claim 1 , wherein: The n and the m are natural numbers different from each other.

5. The display module according to claim 1, wherein: The lens array includes a plurality of lens units arranged in the first direction, The plurality of lens units respectively correspond to k pixels arranged in the first direction among the plurality of pixels, where k is a natural number. The display module according to claim 5 , wherein: The k pixels corresponding to any one of the plurality of lens units and arranged in the first direction respectively correspond to any one of k viewpoints.

7. The display module according to claim 6, wherein: The first-type pixels and the second-type pixels adjacent in the second direction correspond to the same viewpoint or to viewpoints different from each other.

8. The display module according to claim 1, wherein: The first-type pixels and the second-type pixels correspond to different viewpoints from the third-type pixels adjacent in the first direction.

9. The display module according to claim 1, wherein: The lens array includes a cylindrical lens array.

10. The display module according to claim 1, wherein: The first type pixels emit red light, the second type pixels emit green light, and the third type pixels emit blue light.

11. A display device comprising: A display module includes a display panel and a lens array, wherein the display panel includes a plurality of pixels including a first type of pixel, a second type of pixel, and a third type of pixel, and the lens array is arranged on a first surface of the display panel and has an inclination angle; as well as A panel driving circuit receives an input image signal and provides an output image signal to the display panel. The first type pixels and the second type pixels are arranged adjacent to each other in a second direction, The third type of pixels are arranged adjacent to the first type of pixels and the second type of pixels in a first direction, The tilt angle is determined by the mathematical formula The calculated value, where Ra is a first spacing between the first type pixels in the second direction, Rb is a second spacing between the first type pixels in the first direction, Ga is a third spacing between the second type pixels in the second direction, Bb is a fourth spacing of the third type pixels in the first direction, n is a natural number, and m is 0 or a natural number, The first type pixels and the second type pixels have the same spacing distance in the second direction, and the third type pixels have different spacing distances in the second direction.

Images