TWI662343B - Display panel and non-flat thereof - Google Patents

Abstract

A display panel includes multiple sub-pixels and multiple regions. A plurality of sub-pixels located in one of the plurality of regions have one aperture ratio or brightness, and a plurality of sub-pixels located in the other of the plurality of regions have at least two different aperture ratios or brightness. The difference between the average aperture ratio or average brightness of multiple sub-pixels in one of the multiple regions and the average aperture ratio or average brightness of multiple sub-pixels in multiple sub-pixels in the other of the multiple regions is greater than or equal to 0 1.5% or less or 0 or more and 15 nits or less.

Description

Display panel and non-planar display panel

The invention relates to a display panel, and in particular to a non-planar display panel.

With the advancement of science and technology, the technology of display has also been continuously developed. Light, thin, short, and small flat panel displays (FPD) gradually replace traditional thick cathode ray tube displays (CRT). Nowadays, due to the thinness and lightness of flat display panels, flat display panels are even deployed on non-planar surfaces of many buildings or electronic devices.

However, the display panel can still have some problems, for example, the display panel still has uneven brightness and dark phenomenon in different areas displaying the same picture, which is viewed by the viewer, which affects the viewing quality. In particular, when the display panel is arranged on the non-planar surface of many buildings or electronic devices (that is, a non-planar display panel), such a problem will be more easily discovered, and the viewing quality will decrease again, and at this time, Other defects may occur, such as: mura or decreased contrast. Here, the flat display panel and the non-flat display panel usually need to be separately redesigned and matched with modules and materials, which will further increase the manufacturing cost.

In various embodiments of the present invention, the aperture ratio or brightness design of sub-pixels in different regions is designed, and the average aperture ratio difference or average luminance difference of sub-pixels in different regions is within a predetermined range, thereby improving the aforementioned problems. For example, uneven brightness, darkening (mura), or decreased contrast, and the design of flat and non-planar display panels can be shared, which can reduce manufacturing costs.

Various embodiments of the present invention provide a display panel having a center line, a first region, and at least one second region outside the first region. The display panel includes a first substrate, a second substrate, a display medium, and a plurality of sub-pixels. The display medium is located between the first substrate and the second substrate. A plurality of sub-pixels are disposed on the first substrate, wherein each sub-pixel includes at least one active element, at least one signal line electrically connected to the active element, and at least one pixel electrode and one drain of the active element connection. The pixels in the first region only have a first aperture ratio, and the pixels in the second region have at least a second aperture ratio and a third aperture ratio, and the second aperture ratio is different from the third aperture ratio. Opening rate. The difference between the average aperture ratio of the pixels in the first region and the average aperture ratio of the pixels in the second region is greater than or equal to 0 and less than or equal to 1.5%.

In one or more embodiments of the present invention, the display panel further includes at least one third region located outside the first region and the second region, but not between the first region and the second region. The pixels in the third region have at least a fourth aperture ratio and a fifth aperture ratio, and the fourth aperture ratio is different from the fifth aperture ratio. The difference between the average aperture ratio of the pixels in the third region and the average aperture ratio of the pixels in the second region is greater than or equal to 0 and less than or equal to 1.5%.

Various embodiments of the present invention provide a display panel having a center line, a first region, and at least one second region outside the first region. The display panel includes a first substrate, a second substrate, a display medium, and a plurality of sub-pixels. The display medium is located between the first substrate and the second substrate. A plurality of sub-pixels are disposed on the first substrate, wherein each sub-pixel includes at least one active element, at least one signal line electrically connected to the active element, and at least one pixel electrode and one drain of the active element. connection. The pixels in the first region have only a first brightness, and the pixels in the second region have at least a second brightness and a third brightness, and the second brightness is different from the third brightness. The difference between the average brightness of the pixels in the first region and the average brightness of the pixels in the second region is greater than or equal to 0 and less than or equal to 15 nits.

In one or more embodiments of the present invention, the display panel further includes at least one third region located outside the first region and the second region, but not between the first region and the second region. The pixels in the third region have at least a fourth brightness and a fifth brightness, and the fourth brightness is different from the fifth brightness. The difference between the average brightness of the pixels in the third region and the average brightness of the pixels in the second region is greater than or equal to 0 and less than or equal to 15 (nits).

In one or more embodiments of the present invention, the center line is located in the first region.

In one or more embodiments of the present invention, a plurality of sub-pixels of different brightnesses of each of the second region and at least one of the third regions are staggered.

In one or more embodiments of the present invention, at least one of the sub-pixels has a plurality of sub-regions.

In one or more embodiments of the present invention, each of the sub-pixels further includes a common electrode disposed on at least one of the first substrate and the second substrate.

Embodiments of the present invention provide a non-planar display panel. The non-planar display panel includes: Embodiments of the present invention provide a display panel in a bent state, the display panel is centered on the center line. bending.

In one or more embodiments of the present invention, in a bent state, the display panel has a center of curvature, and the second substrate is located between the first substrate and the center of curvature.

In one or more embodiments of the present invention, in a bent state, the display panel has a center of curvature, and the first substrate is located between the second substrate and the center of curvature.

Several embodiments of the present invention will be disclosed in the following drawings. For the sake of clear description, many practical details will be described in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventional structures and elements will be shown in the drawings in a simple and schematic manner.

In the drawings, the thicknesses of layers, films, panels, regions, etc. are exaggerated for clarity. Throughout the description, the same reference numerals denote the same elements. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to a physical and / or electrical connection.

The terminology used herein is for the purpose of describing particular embodiments only and is not limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one", unless the content clearly indicates otherwise. "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It should also be understood that when used in this specification, the term "including" and / or "including" designates the stated features, regions, wholes, steps, operations, presence of elements and / or components, but does not exclude one or more The presence or addition of other features, areas as a whole, steps, operations, elements, components, and / or combinations thereof.

As used herein, "about" or "approximately" or "substantially" includes the stated value and an average value within an acceptable deviation range of a particular value determined by one of ordinary skill in the art, taking into account the measurements in question and the measurements A specific number of related errors (ie, limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the value, or for example within ± 10%, ± 7%, ± 5%.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted to have meanings consistent with their meanings in the context of the related art and the present invention, and will not be interpreted as idealized or excessive Formal meaning unless explicitly defined as such in this article.

Please refer to FIGS. 1 to 5B. FIG. 1 is a schematic top view of a display panel according to a first embodiment of the present invention, FIG. 2 is an enlarged schematic view of a partial pixel of the display panel of the first embodiment, and FIG. 3 is a schematic view of a modified example of the display panel of the first embodiment. Partial pixel enlarged schematic diagram, FIG. 4 is a partial pixel enlarged schematic diagram of still another modification of the display panel of the first embodiment, and FIGS. 5A and 5B are diagrams of the display panel of the first embodiment of the present invention in a bent state. Side view. The display panel 100 of this embodiment is a flexible display panel, and FIG. 1 shows a state where the surface of the display panel 100 is flat without being bent, and may be referred to as a flat display panel 100 at this time. As shown in FIG. 1, the display panel 100 has a centerline C, and the display panel 100 has a first region R1 and a second region R2 located outside the first region R1. The display panel 100 in this embodiment includes at least one second region R2, which are respectively located on the first and / or second sides (eg, left and / or right) of the first region R1, but is not limited thereto. The display panel 100 of the present invention includes a first substrate S1, a second substrate S2, a display medium ML, a plurality of sub-pixels SPM, and a pixel electrode PE. The relative arrangement relationship of the above-mentioned components will be described in sections below.

As shown in FIG. 5A or 5B, the first substrate S1 and the second substrate S2 are disposed opposite to each other, and the display medium ML is disposed between the first substrate S1 and the second substrate S2. The first substrate S1 and the second substrate S2 may include a light-transmitting substrate such as a glass substrate, a plastic substrate, or a substrate of other suitable materials or a flexible substrate. For example, the first substrate S1 and the second substrate S2 may be arrays, respectively. Substrate and opposite substrate. The first direction D1 in this embodiment is substantially perpendicular to the second direction D2 (see FIG. 1), but is not limited thereto. The display panel 100 includes a plurality of sub-pixels SPM, and is disposed on the first substrate S1, for example, on an inner surface of the first substrate S1 facing the second substrate S2. As shown in FIG. 5A, the display panel 100 can be bent in a bent state. As shown in FIG. 5A, the display panel 100 of this embodiment is bent around the center line C, and the curvature radius of the display panel 100 can be determined according to the product specifications. For example, the display panel 100 of this embodiment has a center of curvature X, and the second substrate S2 is located between the first substrate S1 and the center of curvature X. In other words, the center of curvature X is located on one side of the display panel 100 and is adjacent to it. The second substrate S2 is located on the same side as the user's viewing direction and the center of curvature X. In another modified embodiment, as shown in FIG. 5B, the display panel 100 may also be bent toward the first substrate S1, and the first substrate S1 is located between the second substrate S2 and the center of curvature X, in other words, the center of curvature The X series is located on the other side of the display panel 100 and is adjacent to the first substrate S1, and the user's viewing direction and the curvature center X series are on different sides, that is, the user's viewing direction is adjacent to the second substrate S2.

Please refer to FIG. 2 to FIG. 4 for different embodiments of the sub-pixel partial design. The sub-pixel in FIG. 2 includes at least one active device SW. The active device SW includes a source S, a drain D, a gate G, and a semiconductor layer (not shown). The type of the active device SW may include a semiconductor layer. A bottom gate active device SW located above the gate G and between the source S and the drain D, and a top gate type semiconductor layer located below the gate G and between the source S and the drain D The active element SW, or another suitable type of active element SW. The active element SW in the sub-pixel is electrically connected to at least one signal line SL1, and it includes a data line DL, a scan line GL, a common electrode line (not shown), or other suitable lines / electrodes, or at least one of the foregoing. Wire / electrode. For example, the gate G of the active element SW in the sub-pixel is connected to the scan line GL, and the source G of the active element SW in the sub-pixel is connected to the data line DL. The secondary pixel also includes at least one pixel electrode PE, which is connected to the drain electrode D of the active device SW. The difference between the sub-pixel in FIG. 3 and the sub-pixel in FIG. 2 is that the sub-pixel includes at least two active elements SW, at least two pixel electrodes PE and multiple sub-regions, and one active element SW is connected to the corresponding signal line. , The other active element SW is connected to the corresponding signal line, a pixel electrode PE (or called the main pixel electrode PE (M)) is located in a sub-area and connected to the drain electrode D of the corresponding active element SW, and A pixel electrode PE (or a main pixel electrode PE (S)) is located in a sub-region and is connected to the drain electrode D of the corresponding active element SW. The sub-region may be a region where the pixel electrode PE exists. Although the source electrodes S of the two active components in FIG. 3 are connected to the same signal line (for example, at least one of a data line, a scan line, or a common electrode), it is not limited thereto. In other embodiments, the source D of the two active devices SW in FIG. 3 may be connected to different signal lines (for example, at least one of a data line, a scan line, or a common electrode). In addition, the source S of the two active devices in FIG. 3 uses individual electrodes as an example. In other embodiments, the source S of the two active devices in FIG. 3 may also share a single electrode, which may be referred to as a shared source S. The difference between the sub-pixel in FIG. 4 and the sub-pixel in FIG. 2 is that two sides (for example, left and right) of the pixel electrode PE will exceed the outer sides of two adjacent signal lines (for example, data lines DL). In other embodiments, the sub-pixel design of FIG. 4 may also be applied to the sub-pixel design of FIG. 3. In addition, the gate G of the above-mentioned sub-pixels of FIGS. 2 to 4 may be a part of or extended from the scanning line GL; or, the above-mentioned sub-pixels of FIGS. 2 to 4 may include other Active element; or alternatively, at least one insulating layer (not labeled) is provided between the scanning lines GL and the data lines DL of the above-mentioned sub-pixels of FIGS. 2 to 4. The insulating layer may be a gate insulating layer, a dielectric layer, Or other suitable insulation layers are provided according to the type of the active device. It must be noted that please refer to FIG. 2 to FIG. 5B together. At least one of the sub-pixels described in FIG. 2 to FIG. 4 further includes a common electrode (not labeled) and is disposed on the first substrate S1 and the second substrate. At least one of S2 is on (see FIG. 5A or 5B). Furthermore, at least one sub-pixel SPM in the display panel 100 according to the present invention may optionally include at least one of the sub-pixel designs described in FIGS. 2 to 4. The semiconductor layer material of the active device in the foregoing embodiments of the present invention may include polycrystalline silicon, amorphous silicon, single crystal silicon, microcrystalline silicon, oxide semiconductor materials, organic semiconductor materials, or other suitable materials. In addition, at least one of the pixel electrode PE or the common electrode of the foregoing embodiment of the present invention may optionally include at least one of a slit (not shown) or a branch electrode (not shown), but is not limited thereto.

The multiple sub-pixels SPM in this embodiment are located in multiple sub-pixels SP1 (which may be referred to as the first pixels) in the first region R1, and may be arranged substantially along the first direction D1, but are not limited thereto. The plurality of sub-pixels SPM are located in the second region R2, and a plurality of sub-pixels SP2 (which may be referred to as second sub-pixels) may be arranged substantially along the first direction D1. It must be noted that when the sub-pixel includes a plurality of M-th sub-pixels SPM, the plurality of M-th sub-pixels SPM (may be referred to as the M-th sub-pixel) are located within the M-th region RM and substantially along the The first direction D1 is aligned, and M is a positive integer. In this embodiment, each sub-pixel SP1 in the first region R1 has only a first aperture ratio (or aperture ratio) a, and a plurality of sub-pixels SP2 in the second region R2 has at least two types. The aperture ratio, for example, the second aperture ratio b and the third aperture ratio c, and the second aperture ratio b is different from the third aperture ratio c, where the aperture ratio: no unit. Therefore, multiple sub-pixels SP1 in the first region R1 can obtain an average aperture ration, and multiple sub-pixels SP2 in the second region R2 can obtain an average aperture ration. The difference between the average aperture ratio of the multiple sub-pixels SP1 in the first region and the average aperture ratio of the multiple sub-pixels SP2 in the second region R2 is greater than or substantially equal to 0 and less than or substantially equal to 1.5%, The optical performance of the flat display panel 100 can be made more uniform, that is, the flat display panel 100 can display the uniform performance of different regions R1 and R2 in the same frame, which can improve problems such as mura or contrast loss. The average aperture ratio is the sum of the aperture ratios of the sub-pixels in the area divided by the number of sub-pixels, and the difference between the average aperture ratios of different areas is an absolute value. Preferably, the difference between the average aperture ratio of the multiple sub-pixels SP1 in the first region R1 and the average aperture ratio of the multiple sub-pixels SP2 in the second region R2 is greater than or substantially equal to 0. It is less than or substantially equal to 1%, which can make the optical performance of the flat display panel 100 more uniform, that is, the flat display panel 100 can display more uniform screen performance of different regions R1 and R2 of the same screen, which can improve color Problems such as mura or contrast loss. It must be noted that the difference between the average aperture ratio is greater than or substantially equal to 0 and less than or equal to 1.5%, preferably, the difference between the average aperture ratio is greater than or substantially equal to 0 and less than or substantially equal to 1% It is the bottom line (or critical line) that can clearly distinguish whether the picture is uniform or not when viewing the picture. In addition, exceeding this bottom line (for example: 1.5%), it may not be easy to compensate, and other defects may also occur.

The sub-pixels SP2 with different aperture ratios in the second region R2 of the present invention are staggered, for example, the mosaic arrangement is an example, but it is not limited thereto. In other embodiments, the sub-pixels with different aperture ratios in the second region R2 may not show a staggered arrangement, for example, a mosaic arrangement is not shown. The sub-pixels SP1 of the first region R1 of the present invention are arranged in a column or a row, and the sub-pixels SP2 of the second region R2 are arranged in a row or a row. , But not limited to this. In other embodiments, the sub-pixels SP1 of the first region R1 may be arranged in at least one column or row, and the sub-pixels SP2 of the second region R2 may be arranged in at least one column or at least one column. (row). For example, the sub-pixels SP1 of the first region R1 are arranged in multiple rows or columns, and the sub-pixels SP2 of the second region R2 are arranged in multiple rows or columns, or the sub-pixels SP1 of the first region R1 are arranged. Into one row or column, and the sub-pixels SP2 of the second region R2 are arranged in multiple rows or columns, or the sub-pixels SP1 of the first region R1 are arranged in multiple rows or columns, and the sub-pixels of the second region R2 SP2 is arranged in a row or column. It must be noted that when the sub-pixels SP1 of the first region R1 are arranged in multiple rows, there is still only one aperture ratio (for example: the first aperture ratio), and when the sub-pixels SP2 of the second region R2 are arranged in multiple rows , Has at least two kinds of aperture ratios (for example: second and third aperture ratios). When the sub-pixels SP2 of the second region R2 are arranged in multiple lines, it is not necessary to have at least two aperture ratios for each line, and one of the multiple lines may be one of at least two aperture ratios. The other one of the plurality of rows may have at least two aperture ratios, and is preferably arranged in a staggered manner, such as a mosaic arrangement, but is not limited thereto. In other embodiments, the sub-pixels SP2 of the second region R2 are arranged in multiple rows, for example, two rows (columns) or four rows (columns) may be respectively located on two sides of the first region R1 (eg, left and right). ) To make the optical performance more symmetrical and / or uniform. The number of rows (columns) of the sub-pixels SP2 of the second region R2 on the two sides of the first region R1 is not necessarily the same, and the arrangement of the sub-pixels SP2 of the second region R2 on the two sides of the first region R1 It doesn't have to be the same. For example, the present invention uses the same number of rows (columns) of the sub-pixels SP2 in the second region R2 on the two sides of the first region R1, but the sub-pixels SP2 on the second region R2 on the two sides of the first region R1. The arrangement is different as an example, or the number of rows (columns) of the sub-pixels SP2 in the second region R2 on the two sides of the first region R1 is different, but the sub-pictures on the second region R2 on the two sides of the first region R1 The arrangement of the elements SP2 is the same, but it is not limited to this, but it must be consistent with the aforementioned one area being one aperture ratio, and the other area (adjacent area) having at least two aperture ratios and two areas (for example, the first area and each (Block 2) is the difference in average aperture ratio. For example, the sub-pixel SP1 of the first region R1 has a first aperture ratio a, and the sub-pixel SP2 of each second region R2 has at least the second and third aperture ratios b and c. The sub-pixels of the first region SP1 has an average aperture ratio. The sub-pixels SP2 of the second region R2 on the first and second sides (eg, left and right) of the first region R1 have average aperture ratios respectively, and the sub-pixels SP1 of the first region R1 are SP1. The difference between the average aperture ratio of the first pixel R1 and the average aperture ratio of the sub-pixel SP2 of the second region R2 on the first side (for example, the left side) of the first region R1 and the average aperture ratio of the sub-pixel SP1 of the first region R1 and The difference between the average aperture ratios of the sub-pixels SP2 of the second region R2 on the second side (for example, the right side) of the first region R1 is all greater than or substantially equal to 0 and less than or substantially equal to 1.5%. However, in order to make the optical performance more symmetrical and / or uniform as described above, preferably, the number of rows (columns) of the sub-pixels SP2 in the second region R2 on both sides of the first region R1 is the same, and in the first region R1 The arrangement of the sub-pixels SP2 of the second region R2 on both sides is the same. It must be noted that, in order to make the optical performance more symmetrical and / or uniform as described above, preferably, the center line C1 is located in the first region R1, that is, the center line C1 is substantially parallel to the first direction D1, and substantially The upper direction is perpendicular to the second direction D2, but is not limited thereto. In other embodiments, the center line C1 may not be located in the first region R1.

This embodiment is not limited to the second aperture ratio b being greater than the third aperture ratio c, or the second aperture ratio b is less than the third aperture ratio c, or the first aperture ratio a is equal to the second aperture ratio b or the third aperture ratio c One of them, or the first aperture ratio a is larger than one of the second aperture ratio b or the third aperture ratio c, or the first aperture ratio a is smaller than one of the second aperture ratio b or the third aperture ratio c, As long as the flat display panel according to the present invention can be measured by an optical instrument, such as a CCD or a light sensor, the first region R1 and the second region R2 have relatively uniform optical performance, and they can be applied. The related description of the aperture ratio is described in the subsequent description.

In addition, each sub-pixel SP1 in the first region R1 can measure the first brightness L1 through an optical instrument, such as a CCD or a light sensor, and multiple sub-pictures in the second region R2 The element SP2 can measure at least the second brightness L2 and the third brightness L3, and the second brightness L2 is different from the third brightness L3. The brightness unit: nits or candlelight / square meter (cd / m) ² ). Therefore, if multiple sub-pixels SP1 in the first region R1 can obtain average luminance, and multiple sub-pixels SP2 in the second region R2 can obtain average luminance, then the first region R1 The difference between the average brightness of the multiple sub-pixels SP1 in the second sub-pixel SP2 and the average brightness of the multiple sub-pixels SP2 in the second region R2 is greater than or substantially equal to 0 and less than or substantially equal to 15 nits, which can make the flat display The optical performance of the panel 100 can be relatively uniform, that is, the flat display panel 100 can display different regions R1 and R2 of the same screen with relatively uniform screen performance, which can improve problems such as mura or decreased contrast. The average brightness is obtained by summing the brightness of each sub-pixel in the area divided by the number of sub-pixels, and the difference between the average brightness of different areas is an absolute value. Preferably, the difference between the average brightness of the plurality of sub-pixels SP1 in the first region and the average brightness of the plurality of sub-pixels SP2 in the second region R2 is greater than or substantially equal to 0 and less than or It is substantially equal to 10 nits, which can make the optical performance of the flat display panel 100 more uniform, that is, the flat display panel 100 can display more uniform screen performance of different regions R1 and R2 of the same screen, which can improve the halo. (mura) or decreased contrast. It must be noted that the difference in average brightness is greater than or substantially equal to 0 and less than or substantially equal to 15 nits, and preferably, the difference in average aperture ratio is greater than or substantially equal to 0 and less than or substantially equal to 10 nits. The bottom line (or critical line) that can clearly distinguish whether the picture is uniform or not can be clearly distinguished when watching the picture. Although, beyond this bottom line (for example: 15 nits), it may not be easy to compensate, and other defects may be generated. For the arrangement of the sub-pixels, the number of rows or columns, etc. of each region, please refer to the foregoing description of the sub-pixels of the aperture ratio in each region, and it is in accordance with the present invention that one region is a kind of brightness, Zone) is the difference between at least two types of brightness and the average brightness of the two zones. For example, the sub-pixel SP1 of the first region R1 has a first brightness L1, the sub-pixel SP2 of each second region R2 has at least the second and third brightness L2 and L3, and the sub-pixel SP1 of the first region has Average brightness. The sub-pixels SP2 of the second region R2 on the first and second sides (eg, left and right) of the first region R1 have average brightness, respectively. Then, the average aperture ratio of the sub-pixels SP1 of the first region R1. The difference from the average aperture ratio of the sub-pixel SP2 of the second region R2 on the first side (for example, the left side) of the first region R1 and the average brightness of the sub-pixel SP1 of the first region R1 The difference in the average brightness of the sub-pixels SP2 of the second region R2 on both sides (for example, the right side) is all greater than or substantially equal to 0 and less than or substantially equal to 15 nits. It must be noted that, in order to make the optical performance more symmetrical and / or uniform as described above, preferably, the center line C1 is located in the first region R1, that is, the center line C1 is substantially parallel to the first direction D1, and substantially The upper direction is perpendicular to the second direction D2, but is not limited thereto. In other embodiments, the centerline C1 is not located in the first region R1.

This embodiment is not limited to the second brightness L2 being greater than the third brightness L3, or the second brightness L2 being less than the third brightness L3, or the first brightness L1 being equal to one of the second brightness L2 or the third brightness L3, or the first brightness L3. A brightness L1 is greater than one of the second brightness L2 or the third brightness L3, as long as the flat display panel of the present invention can be measured by an optical instrument, such as a CCD or an optical sensing element, the first region R1 and the second region R2 The optical performance is relatively uniform, and it is applicable.

Referring again to FIG. 1, in some embodiments of the present invention, the display panel 100 (also referred to as a flat display panel) may further include at least a third region R3 located outside the first region R1 and the second region R2, but not located there. Between the first region R1 and the second region R2. The multiple sub-pixels SP3 located in the third region R3 have at least a fourth aperture ratio d and a fifth aperture ratio e, and the fourth aperture ratio d is different from the fifth aperture ratio e, where the aperture ratio: no unit. The average aperture ratio can be obtained for multiple sub-pixels SP3 in the third region R3, and then the average aperture ratio of the multiple sub-pixels SP2 in the second region and the multiple sub-pictures in the third region R3 can be obtained. The difference between the average aperture ratio of the element SP3 is greater than or substantially equal to 0 and less than or substantially equal to 1.5%, which can make the optical performance of the flat display panel 100 more uniform, that is, the flat display panel 100 displays different regions R2 and R3, and even more, the image performance of different regions R1 to R3 can be more uniform, so that problems such as mura or contrast reduction can be improved. The average aperture ratio is the sum of the aperture ratios of the sub-pixels in the area divided by the number of sub-pixels, and the difference between the average aperture ratios of different areas is an absolute value. Preferably, the difference between the average aperture ratio of the multiple sub-pixels SP2 in the second region R2 and the average aperture ratio of the multiple sub-pixels SP3 in the third region R3 is greater than or substantially equal to 0. It is less than or substantially equal to 1%, which can make the optical performance of the flat display panel 100 more uniform, that is, the flat display panel 100 displays different regions R1 and R2 of the same screen, and even more, the screen performance of different regions R1 to R3. It can be more uniform, which can improve the problems such as mura or decrease in contrast. It must be noted that the difference between the average aperture ratio is greater than or substantially equal to 0 and less than or equal to 1.5%, preferably, the difference between the average aperture ratio is greater than or substantially equal to 0 and less than or substantially equal to 1% It is the bottom line (or critical line) that can clearly distinguish whether the picture is uniform or not when viewing the picture. In addition, exceeding this bottom line (for example: 1.5%), it may not be easy to compensate, and other defects may also occur.

For the arrangement of the sub-pixels SP3 with different aperture ratios in the third region R3 of the present invention, please refer to the arrangement of the different aperture ratios in the second region R2, and the two regions may be the same or different. For example, the sub-pixel arrangement of different aperture ratios in at least one of the second region R2 and the third region R3 is staggered. However, in other embodiments, the sub-pixel arrangement of the second region R2 and the third region R3 does not have to be staggered. The number of rows or columns formed by the sub-pixels SP3 with different aperture ratios in the third region R3 of the present invention can be referred to the number of rows or columns formed by the sub-pixels SP2 with different aperture ratios in the second region R2. In addition, the number of rows or columns in the second region (for example, the third region R3 and the second region R2) of the embodiment is the same, but is not limited thereto. In its embodiment, the number of rows or columns of the two regions (for example, the third region R3 and the second region R2) may be different. In some embodiments of the present invention, the sub-pixels SP3 of the third region R3 are arranged in multiple rows, for example, two rows (columns) or four rows (columns) may be respectively located on two sides of the first region R1 (for example: (Left and right) for more symmetrical and / or uniform optical performance. The number of rows (columns) of the sub-pixels SP3 of the third region R3 on the two sides of the first region R1 is not necessarily the same, and the arrangement of the sub-pixels SP3 of the third region R3 on the two sides of the first region R1 It doesn't have to be the same. For example, the present invention uses the same number of rows (columns) of the sub-pixels SP3 in the third region R3 on the two sides of the first region R1, but the sub-pixels SP3 on the second region R3 on the two sides of the first region R1. The arrangement is different as an example, or the number of rows (columns) of the sub-pixels SP3 in the third region R3 on the two sides of the first region R1 is different, but the sub-pictures on the third region R3 on the two sides of the first region R1 The arrangement of the elements SP3 is the same, but it is not limited to this, but must conform to the difference between the average aperture ratios of the two adjacent regions, that is, the average aperture ratio of the second region R2 and the third region R3 (adjacent region). Difference in average aperture ratio. For example, the sub-pixel SP2 of each second region R2 has at least second and third aperture ratios b and c, and the sub-pixel SP3 of each third region R3 has at least fourth and fifth aperture ratios d and e. Then the average aperture ratio of the sub-pixels SP2 of the second region R2 on the first side (for example: left side) of the first region R1 and the sub-pictures of the third region R3 on the first side (for example: left side) of the first region R1 The difference between the average aperture ratio of the element SP3 and the sub-pixel SP2 of the second region R2 on the second side of the first region R1 (for example, the right side) and the average aperture ratio of the sub-pixels SP2 on the second side of the first region R1 (for example, the right side) The difference between the average aperture ratios of the sub-pixels SP3 in the third region R3 of the brackets) is all greater than or substantially equal to 0 and less than or substantially equal to 1.5%. Preferably, the difference between the average aperture ratios of the two areas is greater than or substantially equal to 0 and less than or substantially equal to 1%. However, in order to make the optical performance more symmetrical and / or uniform as described above, preferably, the number of rows (columns) of the sub-pixels SP3 in the third region R3 on both sides of the first region R1 is the same, and in the first region R1 The arrangement of the sub-pixels SP2 of the third region R3 on both sides may be the same, but is not limited thereto.

This embodiment is not limited to the fourth aperture ratio d greater than the fifth aperture ratio e, or the fourth aperture ratio d is smaller than the fifth aperture ratio e, or the first aperture ratio a is equal to the fourth aperture ratio d or the fifth aperture ratio e Either one of them, or the first aperture ratio a is larger than one of the fourth aperture ratio d or the fifth aperture ratio e, or the first aperture ratio a is smaller than one of the fourth aperture ratio d or the fifth aperture ratio e, Either the fourth aperture ratio d or the fifth aperture ratio e is the same as the second aperture ratio b or the third aperture ratio c, or the fourth aperture ratio d or the fifth aperture ratio e is different. In one of the second aperture ratio b or the third aperture ratio c, as long as the flat display panel according to the present invention can display the same screen and is measured by an optical instrument, such as a CCD or a light sensor, the second region R2 and The third region R3, and even more, the optical performance of the different regions R1 to R3 is more uniform, and can be applied. In addition, the sub-pixel SPM of the RM area also has at least two different aperture ratios m and m '. The arrangement, the number of rows or columns, and the aperture ratios m and m' are similar to those of the adjacent RM-1 area. For the aperture ratio relationship (for example, the aperture ratios d and e of the third region R3) or other correlations, etc., refer to the description of the RM-1 region (for example, the third region R3) adjacent to the RM region. Among them, M is a positive integer. Rather, it should be consistent with the difference between the average aperture ratio of the adjacent two regions, that is, the difference between the average aperture ratio of the adjacent RM-1 region (for example, the third region R3) and the average aperture ratio of the RM region. . For example, the sub-pixels SP3 of each RM-1 region (for example, the third region R3) have at least two aperture ratios (for example, the fourth and fifth aperture ratios d and e), The pixel SPM has at least two aperture ratios m and m ', then the average opening of the sub-pixel SP3 in the RM-1 area (eg, the third area R3) on the first side (eg, the left side) of the first area R1 The difference between the average aperture ratio of the second pixel SPM of the second pixel in the RM area and the RM-1 area (eg, the third area R3) on the second side (eg, right side) of the first area R1 and The difference between the average aperture ratios of the sub-pixel SPMs in the RM region is all greater than or substantially equal to 0 and less than or substantially equal to 1.5%. Preferably, the difference between the average aperture ratio of the sub-pixel SP3 in the RM-1 region (eg, the third region R3) and the average aperture ratio of the sub-pixel SPM in the RM region is greater than or substantially It is equal to 0 and less than or substantially equal to 1%, which can make the optical performance of the flat display panel 100 more uniform, that is, the flat display panel 100 displays different areas RM-1 ~ RM of the same screen, and moreover, different areas R1 ~ The RM's screen performance can be more uniform, so the problems of mura or decreased contrast can be improved. It must be noted that the difference between the average aperture ratio is greater than or substantially equal to 0 and less than or equal to 1.5%, preferably, the difference between the average aperture ratio is greater than or substantially equal to 0 and less than or substantially equal to 1% It is the bottom line (or critical line) that can clearly distinguish whether the picture is uniform or not when viewing the picture. In addition, exceeding this bottom line (for example: 1.5%), it may not be easy to compensate, and other defects may also occur.

Furthermore, multiple sub-pixels SP3 in the third region R3 can be measured at least through the fourth brightness L4 and the fifth brightness L5 through an optical instrument, such as a CCD or a light sensor, and the fourth brightness L4 is different from The fifth brightness L5, wherein the brightness unit is nits or called candlelight / square meter (cd / m ² ). Therefore, the average luminance of multiple sub-pixels SP3 in the third region R3 can be obtained, and then the average luminance of multiple sub-pixels SP2 in the second region R2 and the multiple sub-pictures in the third region R3 can be obtained. The difference in the average brightness of the element SP3 is greater than or substantially equal to 0 and less than or substantially equal to 15 nits, which can make the optical performance of the flat display panel 100 more uniform, that is, the flat display panel 100 displays different regions R2 and The screen performance of R3 will be more uniform, so you can improve the problems of mura or contrast reduction. The average brightness is obtained by summing the brightness of each sub-pixel in the area divided by the number of sub-pixels, and the difference between the average brightness of different areas is an absolute value. Preferably, the difference between the average brightness of the plurality of sub-pixels SP2 in the second region R2 and the average brightness of the plurality of sub-pixels SP3 in the third region R3 is greater than or substantially equal to 0 and less than Or substantially equal to 10 nits, can make the optical performance of the flat display panel 100 more uniform, that is, the flat display panel 100 can display more uniform performance of different areas R1 and R2 of the same screen, and can improve color Problems such as mura or contrast loss. It must be noted that the difference in average brightness is greater than or substantially equal to 0 and less than or substantially equal to 15 nits, preferably, the difference in average brightness is greater than or substantially equal to 0 and less than or substantially equal to 10 nits It is the bottom line (or critical line) that can clearly distinguish whether the picture is uniform or not when viewing the picture. In addition, exceeding this bottom line (for example: 15 nits), it may not be easy to compensate, and other defects may be generated. For the arrangement of the sub-pixels, the number of rows or columns, etc. of each region, please refer to the foregoing description of the sub-pixels of the aperture ratio in each region, and it is in accordance with the present invention that the one region has at least two kinds of brightness and the other region ( The adjacent area) is at least the difference between the two types of brightness and the average brightness of the two areas. For example, the sub-pixel SP2 of each second region R2 has at least second and third brightness L2 and L3, and the sub-pixel SP3 of each second region R3 has at least fourth and fifth brightness L4 and L5, and in The average brightness of the sub-pixels SP2 of the second region R2 on the first side (for example: left side) of the first region R1 and the sub-pixels SP3 of the third region R3 on the first side (for example: left side) of the first region R1 The difference between the average brightness and the average brightness of the sub-pixels SP2 of the second region R2 on the second side (eg, right side) of the first region R1 and the third region on the second side (eg: right side) of the first region R1 The difference between the average brightness of the sub-pixels SP3 of R3 is all greater than or substantially equal to 0 and less than or substantially equal to 15 nits. Preferably, the difference between the average brightness of the two regions is consistent with a value greater than or substantially equal to 0 and less than or substantially equal to 10 nits.

This embodiment is not limited to the fourth brightness L4 being greater than the fifth brightness L5, or the fourth brightness L4 being less than the fifth brightness L5, or the first brightness L1 being equal to one of the fourth brightness L4 or the fifth brightness L5, or the first A brightness L1 is greater than one of the fourth brightness L4 or the fifth brightness L5, or the first brightness L1 is less than one of the fourth brightness L4 or the fifth brightness L5, or one of the fourth brightness L4 or the fifth brightness L5 It is the same as one of the second brightness L2 or the third brightness L3, or one of the fourth brightness L4 or the fifth brightness L4 is different from one of the second brightness L2 or the third brightness L3, as long as the present invention is enabled The flat display panel displays the same picture, and the optical performance of the second region R2 and the third region R3 is measured by optical instruments, such as a CCD or a light sensor, and moreover, the optical performances of the different regions R1 to R3 are more uniform. Applicable. In addition, the sub-pixel SPM of the RM area also has at least two different brightness Lm and Lm ', the arrangement manner, the number of rows or columns, the brightness m and m' and the brightness relationship of the adjacent RM-1 area (For example, the brightness L4 and L5 of the third region R3) or other related information, etc., refer to the description of the RM-1 region (eg, the third region R3) adjacent to the RM region. Instead, the difference between the average brightness of the adjacent two regions, that is, the difference between the average brightness of the adjacent RM-1 region (for example, the third region R3) and the average brightness of the RM region. For example, the sub-pixels SP3 of each RM-1 region (eg, the third region R3) have at least two kinds of brightness (eg, the fourth and fifth aperture ratios L4 and L5), and the sub-pictures of each RM-th region The pixel SPM has at least two kinds of brightness Lm and Lm ', then the average brightness of the sub-pixel SP3 in the RM-1 area (for example: the third area R3) of the first side (for example: the left side) of the first area R1 and the The difference between the average brightness of the sub-pixel SPM of the sub-pixel SPM of the first side (for example: the left side) of the first region R1 and the RM-1 area (for example: The difference between the average brightness of the third region R3) and the average brightness of the sub-pixel SPM in the RM region of the second side (for example, the right side) of the first region R1 are all greater than or substantially equal to 0 and less than or substantially Up to 15 nits. Preferably, the difference between the average brightness of the sub-pixel SP3 in the RM-1 region (eg, the third region R3) and the average brightness of the sub-pixel SPM in the RM region is greater than or substantially equal to 0 And less than or substantially equal to 10 nits, the optical performance of the flat display panel 100 can be more uniform, that is, the flat display panel 100 displays different areas RM-1 ~ RM of the same screen, and moreover, different areas R1 ~ RM The picture performance can be more uniform, so the problems of mura or contrast reduction can be improved.

For the calculation of the aperture ratio of the present invention, please refer to the partial design of the sub-pixels of FIGS. 2 to 4 at the same time, and use at least one of the sub-pixels of FIG. 2, 3 or 4 as the sub-pixels of the display panel 100. In the case of the sub-pixels of FIG. 2, the denominator of the aperture ratio is the area A1 of the sub-pixels perpendicularly projected on the first substrate S1, and the numerator is the area A1 of the sub-pixels vertically projected on the first substrate S1 minus the light-shielding element (for example, : Electrode or line) is projected onto the area C1 of the first substrate S1 perpendicularly, and the formula is aperture ratio (%) = ((A1-C1) / A1) * 100%. In the case of the sub-pixels of FIG. 3, the denominator of the aperture ratio is the area A2 of the sub-pixels vertically projected on the first substrate S1, and the numerator is the area A2 of the sub-pixels vertically projected on the first substrate S1 minus the light-shielding element (for example: The electrode or line) is vertically projected on the area B2 of the first substrate S1, and the formula is an aperture ratio (%) = ((A2-B2) / A2) * 100%. In the case of the sub-pixels of FIG. 4, the denominator of the aperture ratio is the area A3 of the sub-pixels perpendicularly projected on the first substrate S1, and the numerator is the area A3 of the sub-pixels vertically projected on the first substrate S1 minus the light-shielding element (for example: The electrode or line) is vertically projected on the area C3 of the first substrate S1, and the formula is an aperture ratio (%) = ((A3-C3) / A3) * 100%. The light-shielding element (for example, an electrode or a line) includes a signal line, an active element SW, a common electrode line, or other light-shielding electrodes / lines. In other embodiments, the above-mentioned sub-pixel may include a black matrix, which is also counted as a light-shielding element (for example, an electrode or a line). In order to easily calculate the aperture ratio, the aperture ratio formula can be simplified. For example: the aperture ratio of the sub-pixel in FIG. 2 is the pixel electrode of the sub-pixel is vertically projected on the area B1 of the first substrate S1, and the pixel electrode whose numerator is the sub-pixel is vertically projected on the first substrate S1. The area B1 minus the area D1 where the light-shielding element (for example, an electrode or a line) and the pixel electrode overlap vertically is calculated as an aperture ratio (%) = ((B1-D1) / B1) * 100%. Figure 3 Opening ratio of sub-pixels The pixel electrode with the denominator of the sub-pixel is vertically projected on the area B2 (B21 + B22) of the first substrate S1, and the pixel electrode whose numerator is the sub-pixel is vertically projected on the first The area B2 of the substrate S1 minus the area D2 where the light-shielding element (such as an electrode or a line) and the pixel electrode vertically overlap, and the formula is the aperture ratio (%) = ((B2-D2) / B2) * 100%, where B21 The pixel electrode PE (M) in the main area is vertically projected onto the area of the first substrate S1, and the pixel electrode PE (S) in the sub-region is vertically projected onto the area of the first substrate S1. Figure 4: The aperture ratio of the sub-pixel The pixel electrode of the sub-pixel is the sub-pixel vertically projected on the area B3 of the first substrate S1, and the pixel electrode whose numerator is the sub-pixel is vertically projected on the area B3 of the first substrate S1 Subtract the area D3 where the light-shielding element (for example: an electrode or a line) vertically overlaps the pixel electrode, and the formula is the aperture ratio (%) = ((B3-D3) / B3) * 100%. The light-shielding element (for example, an electrode or a line) is as described above, but the pixel electrode PE of the sub-pixel does not necessarily overlap with at least one of the elements included in the light-shielding element.

For the sub-pixel brightness of the present invention, it is not necessary to adjust the aperture ratio of the sub-pixels. In other embodiments, the brightness adjustment method of the sub-pixel can be the potential of the data line, the time for maintaining the sub-pixel, the potential of the common electrode, the positive potential supply source Vdd, the negative potential supply source Vss, and a feed-through potential compensation circuit. , Or other suitable manner, or at least one of the foregoing. If the display medium ML material of the present invention is a non-self-luminous material (for example, liquid crystal, electrophoresis, electrochromic, electrowetting, or other suitable materials, or a combination of the foregoing), the brightness adjustment method of the sub-pixels may include data The potential of the line, the time for which the sub-pixel is maintained, the potential of the common electrode, or another suitable method, or at least one of the foregoing methods. If the display medium ML material of the present invention is a self-luminous material (for example: inorganic electroluminescence, organic electroluminescence, or other suitable materials, or a combination of the foregoing), the brightness adjustment method of the sub-pixel may include the potential of the data line , The time for maintaining the sub-pixels, the positive potential supply source Vdd, the negative potential supply source Vss, adding a feed-through potential compensation circuit, or other suitable methods, or at least one of the foregoing. If the display medium ML material of the present invention is a combination of a self-luminous material and a non-self-luminous material, the brightness adjustment method of the sub-pixel may be selected from at least one of the methods provided above.

A display panel of a second embodiment of the present invention is shown in FIG. 6A. The main difference between the display panel 100 'of the second embodiment and the display panel 100 of the first embodiment is that the aperture ratios of the sub-pixels SP1 to SPM of the display panel 100' of the second embodiment in different regions R1 to RM are the same An aperture ratio a ′, and the brightnesses of the sub-pixels SP1 to SPM of the different regions R1 to RM are also the same brightness La ′. Please refer to the rest for the rest.

A display panel of a third embodiment of the present invention is shown in FIG. 7A. The main difference between the display panel 100 "of the third embodiment and the display panel 100 of the first embodiment is that the aperture ratios of the sub-pixels SP1 to SPM of the display panel 100" of the third embodiment in each region R1 to RM are There is only (only) one aperture ratio, and the brightness of the sub-pixels SP1 to SPM of each region R1 to RM is also only (only) one brightness. In other words, the sub-pixel SP1 of the first region R1 is only the aperture ratio a ”, the sub-pixel SP2 of the second region R2 is only the aperture ratio b”, and the sub-pixel SP3 of the third region R3 is only the aperture ratio c ”and The sub-pixel SPM of the Mth region RM is only the aperture ratio m ”, where the aperture ratio increases from the first region to the Mth region. The sub-pixel SP1 of the first region R1 is only the luminance La ”, the sub-pixel SP2 of the second region R2 is only the luminance Lb”, the sub-pixel SP3 of the third region R3 is only the luminance Lc ”, and the The sub-pixel SPM is only the brightness Lm ", where the brightness increases from the first region to the M-th region. Please refer to the rest for the rest.

In order to explain that the display panel of the present invention can improve the aforementioned problems, such as: uneven brightness, reduced mura, or decreased contrast, and can also make the design of flat and non-planar display panels common, and can reduce manufacturing costs, especially The following comparative examples and experimental examples are used as illustrations, and non-self-emitting display panels with vertical electric fields are used as illustrations, but are not limited thereto. In other embodiments, non-self-emissive display panels and self-emissive display panels with horizontal electric fields can also be used.

The experimental example is the display panel 100 described in FIG. 1 of the present invention. The aperture ratio in the display panel 100 can be selected / designed in a predetermined range, for example, 50% to 70%, but is not limited thereto. In other embodiments, the predetermined range may also be selected / designed according to the size and / or resolution of the display panel. For example, the aperture ratio of a single pixel of a 2 to 20 inch display panel may be 30 to 40%. The aperture ratio of a single pixel for a 21-inch to 50-inch display panel can be 41 to 49%, and the aperture ratio of a single-pixel for a 51-inch to 55-inch display panel can be 50 to 60%, and 56 to 65 inches. The aperture ratio of a single pixel of the display panel can be 60 ~ 70%, or other suitable range. The first region R1 has only one aperture ratio a which may be about 54%, the second region R2 has at least two aperture ratios b and c may be about 54% and 56% or 54% and 55%, and the third region R3 is at least The two kinds of aperture ratios d and e may be about 54% and 56% or 55% and 56%, respectively. The M area RM has at least two kinds of aperture ratios m and m ′ which may be about 54% and 56%, respectively. The average opening rate of the first region R1 is about 54%, the average opening rate of the second region R2 may be about 55%, the average opening rate of the third region R3 may be about 55% or 55.5%, and the average opening rate of the Mth region RM may be It is about 55% or 55.5%, then it can be known that the average aperture ratio difference between the first region R1 and the second region R2 is about 1%, and the average aperture ratio difference between the second region R2 and the third region R3 is about 0%. Or 0.5%, the difference between the average aperture ratio of the third region R3 and the Mth region RM is about 0% or 0.5%. The difference between the average aperture ratios of the two adjacent regions is greater than or substantially equal to 0 and less than or substantially equal to 1.5%. And after measured by optical instruments, the difference between the average brightness of the two adjacent areas is greater than or substantially equal to 0 and less than or substantially equal to 15 nits, which can make the display panel display the same picture in different areas. R1 ~ RM's screen performance will be more uniform, so you can improve mura or decrease in contrast. Furthermore, when the display panel of the experimental example is bent into the non-planar display panel 100 of FIG. 5A or 5B, the display panel 100 is in a region with a large amount of surface deformation (for example, at least one of the second region to the Mth region). The electrodes driving the display medium ML (for example: electrodes with non-self-luminous materials driven by a vertical electric field) are displaced or the display medium ML (for example: non-self-luminous materials or self-luminous materials) is shielded by additional light-shielding elements, and Sub-pixels in areas with large deformation (for example, at least one of the second to Mth areas) are locally blackened, so that the aperture ratio in different areas may decrease, and meanwhile, the average aperture ratio in different areas is also reduced. It may also decrease. This experimental example is described by the average aperture ratio. For example, in a non-flat display panel, the average aperture ratio of different regions may be: the average aperture ratio of the first region R1 may be about 54%, and the second region R2 The average aperture ratio may be about 53%, the average aperture ratio of the third region R3 may be about 53% or 52%, and the average aperture ratio of the RM region M may be about 53% or 54%. It can be known that the difference between the average aperture ratios of the two adjacent regions is still maintained at greater than or substantially equal to 0 and less than or substantially equal to 1.5%. And after the measurement by optical instruments, the difference between the average luminances of the two adjacent regions is still maintained at greater than or substantially equal to 0 and less than or substantially equal to 15 nits. Therefore, the experimental example (the embodiment in FIG. 1) of the present invention can compensate for the loss of the sub-pixel aperture ratio in a region with a large amount of surface deformation (for example, at least one of the second region to the Mth region). When the display panel is displayed on a flat surface or a non-flat surface (curved surface) and the same screen is displayed, the screen performance of R1 to RM in different regions will be more uniform, so that problems such as mura or contrast reduction can be improved. Furthermore, the design of the flat and non-flat display panels can be shared, which can reduce the manufacturing cost. It must be noted that, in some embodiments, if the sub-pixel SPM of the M-th region RM is located near the place where the frame glue adheres the two substrates (the first substrate and the second substrate), The adhesive force can make the sub-pixel SPM of the RM in the M area affected by the substrate offset and deformation may be smaller than other areas (for example: R2 ~ RM-1), and may be similar to the sub-picture in the first area R1 The pixel SP1 is affected by the substrate offset and deformation. The design of the sub-pixel SPM of the M-th region RM may be selectively based on the design of the sub-pixel SP1 of the first region R1, but is not limited thereto.

Comparative Example 1 is a display panel 100 'shown in FIG. 6A according to the second embodiment of the present invention. There is only one aperture ratio a ′ of each sub-pixel of the display panel 100 ′ of the comparative example about 54%, and the average aperture ratio of each region is also about 54%, and the difference between the average aperture ratios of the two adjacent regions 0%. The difference between the average brightness of each zone is also measured by optical instruments. Here, when the display panel 100 'is in a flat state, when the same screen is displayed, the screen performance in different regions R1 to RM will be more uniform. Furthermore, when the display panel 100 'of Comparative Example 1 is also bent into a non-planar display panel as shown in FIG. 5A or 5B, the display panel 100' is in a region with a large amount of curved surface deformation (for example, the second region to the Mth region). At least one of the regions) of the electrode driving the display medium ML (for example, a vertical electric field drives an electrode that is not a self-luminous material) is displaced or the display medium ML (for example, a non-self-luminous material or a self-luminous material) is displaced by an additional light-shielding element Occlusion, and the sub-pixels in areas with a large amount of surface deformation (for example, at least one of the second region to the Mth region) are locally blackened, so that the aperture ratio of different regions may decrease, and at the same time, different The aperture ratio of the area may also decrease. And after measuring with optical instruments, it can be found in Figure 6B that when the same screen is displayed, the screen performance of different areas R1 ~ RM will appear multiple black and white blocks, which are converted into the brightness percentage (%, no unit), and then According to the width (mm) of the display panel, it can be obtained that there will be multiple peaks or troughs (as shown by the dashed curve shown in FIG. 6B), where black blocks represent darker and white blocks represent brighter. It can be known that the design of the aperture ratio of the pixels in the different regions of Comparative Example 1 are all the same, and cannot compensate for the area with a large amount of curved surface deformation when the display panel 100 'is bent (for example, at least one of the second region to the Mth region). If the aperture ratio of the display panel is changed, the picture of the display panel 100 'in different regions R1 ~ RM cannot be made uniform, and the problems such as mura or drop in contrast cannot be improved. What's more, the design of flat and non-planar display panels cannot be shared. In order for non-planar (curved) display panels to display the same screen, the screen performance of R1 ~ RM in different areas will be more uniform. Sub-pixel related design of the area, which can not reduce the manufacturing cost.

Comparative Example 2 is the display panel 100 "shown in Fig. 7A according to the third embodiment of the present invention. The pixels of the different regions of the display panel 100" of Comparative Example 2 have only one aperture ratio, for example: the first region R1 The aperture ratio a "is about 54%, the aperture ratio b" in the second region is about 55%, the aperture ratio c "in the third region R3 is about 56%, and the aperture ratio m" in the Mth region RM is about 57%. And the average aperture ratios of different regions (R1 ~ RM) are also about 54%, 55%, 56%, and 57%, respectively, and the average of two adjacent regions (for example: R1 and R2, R2 and R3, R3 and RM) The difference between the aperture ratios is about 1%. Measured by optical instruments, the difference between the average brightness of two adjacent areas (for example: R1 and R2, R2 and R3, R3 and RM) is also about 1%. Here, when the display panel 100 "is in a flat state, when the same screen is displayed, the screen performance in different regions R1 ~ RM may be considered to be more uniform. Furthermore, the display panel 100" of Comparative Example 2 is also bent into a graph through bending For a 5A or 5B non-planar display panel, the display panel 100 "drives an electrode of the display medium ML (for example, a vertical electric field drive) in a region with a large amount of curved surface deformation (for example, at least one of the second region to the Mth region). The electrode of non-self-luminous material) is displaced or the display medium ML (for example: non-self-luminous material or self-luminous material) is blocked by an additional light-shielding element, and the area with a large amount of curved surface deformation (for example: the second region to the first At least one of the M areas) sub pixels are locally blackened, so that the aperture ratio of different areas may decrease, and at the same time, the aperture ratio of different areas may also decrease. After measuring with optical instruments, It is found in FIG. 7B that when the same screen is displayed, multiple black and white blocks will appear in the screen performance of different regions R1 ~ RM. For example, the black blocks are located in the middle and near the non-planar display panel (as shown by the dotted circle in FIG. 7B), and the white The block is located on the edge of the non-planar display panel and surrounds the black blocks. Among them, the black blocks represent darker and the white blocks represent brighter. It can be known that there is only one kind of aperture ratio design for the pixels in different regions of Comparative Example 2. And increasing from the middle to the edge of the display panel 100 "cannot compensate for the change in the aperture ratio of the area with a large amount of surface deformation when the display panel 100" is bent (for example, at least one of the second region to the Mth region) or is possible. It compensates for the change of the aperture ratio in the area where the curved surface deformation amount of the display panel 100 ”is large (for example, at least one of the second area to the Mth area), but the compensation of the aperture ratio change in the middle and its vicinity may still be insufficient or effective. Smaller, it is impossible to make the display panel 100 ”more uniform in the R1 ~ RM area of different areas, and it is not possible to improve the problems of mura or contrast reduction. Moreover, the design of flat and non-planar display panels Cannot be shared, and for non-planar (curved) display panels to display the same screen, the picture performance of R1 ~ RM in different areas will be more uniform. You need to redesign the sub-pixel related settings in different areas. However, this does not reduce manufacturing costs.

A display panel according to a fourth embodiment of the present invention is shown in FIG. 8. The main difference between the display panel 100 '"in the fourth embodiment and the display panel 100 in the first embodiment is that: in this embodiment, the positions of the first direction D1 and the second direction D2 are opposite to each other. Therefore, the center line C of the display panel is located at The center of the display panel 100 extends substantially along the first direction D1. This embodiment is substantially similar to the first embodiment and the modified examples of the first embodiment and uses similar labels. For related descriptions, refer to the first embodiment. And the modification of the first embodiment, which will not be repeated here. The display panel 100 '"in this embodiment can be bent in a bent state as shown in Fig. 5A or 5B. The display panel 100' in this embodiment is centered on the center line C. The axis is curved, and the curvature radius of the display panel 100 'is determined according to the product specifications.

The sub-pixels of the foregoing embodiments of the present invention are erected as an example, but are not limited thereto. In other embodiments, the sub-pixel system of the foregoing embodiment of the present invention may be lying flat (or referred to as lying horizontally). The vertical projection shape of the sub-pixels of the foregoing embodiment of the present invention is exemplified by a rectangle, but is not limited thereto. In other embodiments, the shape of the vertical projection of the sub-pixels of the foregoing embodiments of the present invention may be a polygon, such as: triangle, quadrilateral, rhombus, pentagon, hexagon, black circle, circle, or other suitable projections. shape. The light-shielding element of the foregoing embodiment of the present invention is a single-layer or multi-layer light-shielding material (also referred to as a reflective material) or a light-shielding conductive material, such as: metal (for example, aluminum, molybdenum, silver, copper, gold, or other materials, Usually thicker than 60 angstroms), alloys (e.g. at least two of the aforementioned metals), or the aforementioned salts, black photoresist (e.g. black formed by a single layer or RGB photoresist stack), or other shading / reflecting materials As an example, but not limited to this. In the embodiment of the present invention, the material not listed in the light-shielding element may be referred to as a light-transmitting material, which includes indium tin oxide, indium zinc oxide, indium gallium oxide, indium gallium zinc oxide, and the thickness is less than a predetermined value (for example, thickness (Less than 60 angstroms) metal film can show translucent to translucent, carbon nanotubes / rods, graphene, nanosilver, colorless or colored photoresistors other than black, quantum dots / rods, insulating layers (e.g. : Silicon oxide, silicon nitride, silicon oxynitride, organic insulating layer or other light-transmitting material), or other light-transmitting materials, at least two of the foregoing materials are stacked. In other embodiments, if a part of the light-shielding element is made of a transparent conductive material (for example: indium tin oxide (ITO), indium zinc oxide (IZO), zinc aluminum oxide (AZO), indium aluminum oxide (AIO), indium gallium oxide (IGO), indium gallium zinc oxide (IGZO), graphene, nano silver or other suitable materials, or a stack of any of the foregoing materials) or the light shielding element is a stack of light shielding conductive materials and transparent conductive materials, in the second pixel When calculating the aperture ratio, the area or size where the light-shielding conductive material exists can be calculated. The pixel electrode PE of the foregoing embodiment of the present invention may have a single-layer or multi-layer structure, and the material thereof may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc aluminum oxide (AZO), and indium aluminum oxide (AIO). , A stack of indium oxide (InO) and gallium oxide (GaO), graphene, nanosilver, or other suitable materials or any of the foregoing. In other embodiments, if the pixel electrode PE partially uses a light-shielding conductive material or the pixel electrode PE is a light-shielding conductive material stacked with a transparent conductive material, the pixel electrode PE can be calculated only when the aperture ratio of the sub-pixel is calculated. The area or size where the transparent conductive material exists. The foregoing embodiments of the present invention take the sub-pixel and / or the sub-pixel having multiple sub-regions as an example, but are not limited thereto. In other embodiments, the sub-pixel may be a pixel and / or the pixel has multiple sub-pixels. For other related designs, please refer to the foregoing description, and will not be repeated here. In the foregoing embodiment of the present invention, in the sub-pixels in different regions having at least two aperture ratios or brightness designs, any two adjacent sub-pixels in the same region may be selectively selected by the difference in aperture ratio or brightness and / or different regions. The difference between the aperture ratio or brightness of any two adjacent sub pixels is greater than or substantially equal to 0 and less than or substantially equal to 1.5% or 15 nits, preferably greater than or substantially equal to 0 and less than or substantially equal to 1% or 10 nits, but not limited to this. The plurality of sub-pixels SP2 to SPM of the second region R2 to the M-th region RM of the foregoing embodiment of the present invention respectively have two aperture ratios or brightnesses as an example, but it is not limited thereto. In other embodiments, the multiple sub-pixels SP2 to SPM of the second region R2 to the M-th region RM of the foregoing embodiment have three or four or five aperture ratios or brightness, etc., respectively. It must be noted that when one of the multiple sub-pixels SP2 to SPM of the second region R2 to the Mth region RM of the foregoing embodiment has at least three aperture ratios or brightness, the second region R2 to the Mth region RM The third aperture ratio or brightness of one of the sub-pixels SP2 to SPM can be optionally designed to be the difference between the aperture ratio or brightness of any two adjacent sub-pixels in the same area and / or any two of the different areas The difference between the aperture ratio or brightness of adjacent sub-pixels is greater than or substantially equal to 0 and less than or substantially equal to 1.5% or 15 nits, preferably, greater than or substantially equal to 0 and less than or substantially equal to 1% or 10 nits, but not limited to this. For example, the sub-pixels SP2 and SP3 of the second region R2 and the third region R3 are used to illustrate: the third aperture ratio c or the brightness L3 of the second pixel R2 of the sub-pixel SP2 is above, below, left, The difference in the aperture ratio of the sub-pixel SP2 in the second region R2 on at least one of the right or oblique sides is greater than or substantially equal to 0 and less than or substantially equal to 1.5% or 15 nits, preferably greater than or Substantially equal to 0 and less than or substantially equal to 1% or 10 nits. Alternatively, the difference between the aperture ratios of the third aperture ratio c of the sub-pixel SP2 in the second region R2 or at least one of the left or oblique sides of the brightness L3 in the third pixel R2 is greater than or Substantially equal to 0 and less than or substantially equal to 1.5% or 15 nits, preferably greater than or substantially equal to 0 and less than or substantially equal to 1% or 10 nits, the rest of the description can be referred to the second opening rate Or brightness, I wo n’t repeat them here. It must be noted that the difference in aperture ratio or brightness between two adjacent sub-pixels is greater than or substantially equal to 0 and less than or substantially equal to 1.5% or 15 nits. Preferably, the openings of two adjacent sub-pixels are preferably The difference between the rate or brightness is greater than or substantially equal to 0 and less than or substantially equal to 1% or 10 nits. When viewing a picture, the bottom line (or critical line) that can clearly distinguish whether the picture is uniform or not. Although, exceeding this bottom line (for example: 1.5% or 15 nits), it may not be easy to compensate, and other defects may be generated. The optical measurement of each sub-pixel of the foregoing embodiment of the present invention can measure and confirm the brightness without involving the light of the color of the color filter, for example, white light or light for other purposes (for example, blue light or UV light) And, the light for other purposes can directly measure and confirm the brightness (unit: nits) or can be selectively converted to grayscale to measure and confirm the brightness (unit: nits), but it is not limited to this. If it involves the optical measurement of each sub-pixel of the color of the color filter, you can directly measure and confirm the brightness (unit: nits) or optionally convert to grayscale to measure and confirm the brightness (unit: Nits), but not limited to this. In other words, regardless of the monochrome or color chromaticity, the sub-pixels can be represented by the grayscale brightness (unit: nits), that is, the grayscale (unit: none) of each sub-pixel will correspond to the brightness (unit: nits). To represent, there are usually 0 to 255 levels, and the gray level is 0 for black (darkest), gray level 255 for white (brightest), and gray levels between 0 and 255 represent different levels of gray or brightness. In addition, the display panel of the foregoing embodiment may selectively use different gamma curves (for example, gamma 2.2) to improve the image quality of the gray scale displayed on the display panel, but is not limited thereto. In some embodiments, the display panel may not use a gamma curve to improve the image quality of the gray scale on the display panel.

The display panel of the foregoing embodiment of the present invention may include a non-self-emitting display panel (for example, a vertical electric field non-self-emitting display panel, a horizontal electric field non-self-emitting display panel, a composite electric field non-self-emitting display panel, or other non-self-emitting driving methods Light-emitting display panel), self-emitting display panel, or a combination thereof. For the display medium of the display panel, please refer to the foregoing, which is not repeated here.

Although the embodiments of the present invention and its advantages have been disclosed as above, it should be understood that any person with ordinary knowledge in the technical field can make changes, substitutions and decorations without departing from the spirit and scope of the present invention. In addition, the scope of protection of the present invention is not limited to the processes, machines, manufactures, material compositions, devices, methods and steps in the specific embodiments described in the description. Any person with ordinary knowledge in the technical field may disclose the content from the present invention. To understand the current or future development of processes, machines, manufacturing, material composition, devices, methods and steps, as long as they can implement substantially the same functions or achieve approximately the same results in the embodiments described herein, they can be used according to the present invention. Therefore, the protection scope of the present invention includes the above-mentioned processes, machines, manufacturing, material composition, devices, methods, and steps. In addition, each patent application scope constitutes a separate embodiment, and the protection scope of the present invention also includes a combination of each patent application scope and embodiment.

100, 100 ’, 100”, 100 ’” ‧‧‧ display panel

B1 ~ B3‧‧‧Pixel electrode area

Pixel electrode area of B22‧‧‧ sub-area

D1‧‧‧ first direction

DL‧‧‧Data Line

GL‧‧‧scan line

PE, PE (M), PE (S) ‧‧‧Pixel electrode

a ’, a”, b ”, c”, m ”‧‧‧ opening rate

c‧‧‧Third opening rate

e‧‧‧Fifth opening rate

L1‧‧‧First brightness

L3‧‧‧ third brightness

L5‧‧‧ fifth brightness

Lm, Lm’‧‧‧ Brightness

R2‧‧‧Second District

RM‧‧‧Zone M

S1‧‧‧First substrate

SL1‧‧‧Signal line

SP1‧‧‧ the first pixel

SP3 ‧‧‧ the third pixel

X‧‧‧Curvature Center

A1 ~ A3‧‧‧times pixel area

B21‧‧‧Pixel electrode area of main area

C‧‧‧ Centerline

D‧‧‧ Drain

D2‧‧‧ Second direction

G‧‧‧Gate

ML‧‧‧Display media

a‧‧‧first opening rate

b‧‧‧second opening rate

d‧‧‧ fourth opening rate

m, m ’, m” ‧‧‧ opening rate

L2‧‧‧Second brightness

L4‧‧‧ Fourth brightness

La ’, La”, Lb ”, Lc”, Lm ”‧‧‧ brightness

R1‧‧‧ District 1

R3‧‧‧Third District

S‧‧‧Source

S2‧‧‧Second substrate

SP2‧‧‧Second Pixel

SPM‧‧‧th Mth pixel

SW‧‧‧Active components

The above and other exemplary embodiments of the present invention will have more advantages and features that will become more clear by describing the exemplary embodiments of the present invention in further detail with reference to the drawings, in which:

FIG. 1 is a schematic top view of a display panel according to a first embodiment of the present invention. FIG. 2 is an enlarged schematic diagram of a part of pixels of the display panel of the first embodiment. FIG. 3 is an enlarged schematic diagram of a part of pixels of a display panel according to a modification of the first embodiment. FIG. 4 is an enlarged view of a part of pixels of a display panel according to still another modification of the first embodiment. 5A and 5B are schematic side views of a display panel according to a first embodiment of the present invention in a bent state. 6A is a schematic top view of a display panel according to a second embodiment of the present invention. FIG. 6B is an optical top view of the display panel in FIG. 6A in a bent state. FIG. 7A is a schematic top view of a display panel according to a third embodiment of the present invention. FIG. 7B is an optical top view of the display panel in FIG. 7A in a bent state. FIG. 8 is a schematic top view of a display panel according to a fourth embodiment of the present invention.

Claims (10)

A display panel includes a first area, at least one second area outside the first area, and at least one third area. The third area is located outside the first area and the second area, but is not located in the area. Between the first region and the second region, the display panel has a centerline, and the display panel includes a first substrate, a second substrate, and a display between the first substrate and the second substrate. A medium; a plurality of sub-pixels disposed on the first substrate, wherein each of the sub-pixels includes: at least one active element and at least one signal line electrically connected to the active element; and at least one pixel electrode and the One of the active devices is connected to a drain; wherein the sub-pixels located in the first region have only a first aperture ratio, and the sub-pixels located in the second region have at least a second aperture ratio and a first aperture ratio. Three aperture ratios, and the second aperture ratio is different from the third aperture ratio, the pixels in the third region have at least a fourth aperture ratio and a fifth aperture ratio, and the fourth aperture ratio is different At the fifth aperture ratio; , The difference between the average aperture ratio of the pixels in the first area and the average aperture ratio of the pixels in the second area is greater than or equal to 0 and less than or equal to 1.5%, and is located in the third The difference between the average aperture ratio of the pixels in the region and the average aperture ratio of the pixels in the second region is greater than or equal to 0 and less than or equal to 1.5%. The display panel according to claim 1, wherein the at least one second region is two second regions that are respectively located on the first and second sides of the first region, and wherein The difference between the average aperture ratio of the pixels and the average aperture ratio of the pixels in each of the second regions is greater than or equal to 0 and less than or equal to 1.5%. The display panel according to claim 1, wherein the center line is located in the first area. The display panel according to claim 1, wherein the at least one third region is two third regions located on the first and second sides of the first region, respectively, wherein one of the third regions is located on one of the third regions. The difference between the average aperture ratio of the sub-pixels and the average aperture ratio of the sub-pixels located adjacent to one of the second regions and the sub-pixels located at the other of the third regions The difference between the average aperture ratio and the average aperture ratio of the adjacent pixels located in another of the second regions is greater than or equal to 0 and less than or equal to 1.5%. The display panel according to claim 4, wherein a plurality of sub-pixels with different aperture ratios of each of the second region and at least one of the third regions are staggered. The display panel according to claim 1, wherein at least one of the sub-pixels has a plurality of sub-regions. The display panel according to claim 1, wherein each of the sub-pixels further includes a common electrode disposed on at least one of the first substrate and the second substrate. A non-planar display panel includes: a display panel as described in claim 1, wherein the display panel is in a bent state, and the display panel is bent with the center line as an axis. The non-planar display panel according to claim 8, wherein in the bent state, the display panel has a center of curvature, and the second substrate is located between the first substrate and the center of curvature. The non-planar display panel according to claim 8, wherein in the bent state, the display panel has a center of curvature, and the first substrate is located between the second substrate and the center of curvature.