TWI678583B - Display device - Google Patents

Abstract

A display device includes a backlight module, a light control panel, and a display panel. The light control panel is disposed on the backlight module and includes a light shielding structure, a plurality of first active elements, and a plurality of control electrodes. The plurality of control electrodes are electrically connected to one of the plurality of first active elements, respectively. The display panel is disposed on the light control panel and includes a plurality of pixel units, wherein each pixel unit includes a first dichromic pixel, a second dichromic pixel, and a third color which are substantially equal in the shielding area covered by the light shielding structure. Sub pixels.

Description

Display device

The present invention relates to a display device, and more particularly to a non-self-luminous display device.

In recent years, due to the continuous development of display technology, many electronic devices such as automotive dashboards, watches, and game consoles have been transformed from early mechanical physical structures to flat digital display devices to provide users with Get personalized information from your display device. Generally speaking, the dashboard of a vehicle needs to have high contrast characteristics so that users can clearly obtain information from the dashboard of the vehicle under different driving environments. At present, the backlight module is usually used to control the backlight of the LCD module to improve the contrast of the liquid crystal display device. However, this technology has many problems such as increased manufacturing cost, power consumption, and / or weight. Therefore, developing a high-contrast display device is still one of the goals of those skilled in the art.

At least one embodiment of the present invention provides a display device, which has high contrast, good transmittance, and can avoid the occurrence of a color moiré effect.

A display device of at least one embodiment of the present invention includes a backlight module, a light control panel, and a display panel. The light control panel is disposed on the backlight module and includes a light shielding structure, a plurality of first active elements, and a plurality of control electrodes. The plurality of control electrodes are electrically connected to one of the plurality of first active elements, respectively. The display panel is disposed on the light control panel and includes a plurality of pixel units, wherein each pixel unit includes a first dichromic pixel, a second dichromic pixel, and a third color which are substantially equal in the shielding area covered by the light shielding structure. Sub pixels.

Based on the above, in the display device of at least one embodiment of the present invention, the light-regulating panel disposed on the backlight film group includes a light-shielding structure, a plurality of first active elements, and an electrical connection with one of the first active elements. A plurality of control electrodes, and the display panel located on the light control panel includes a plurality of pixel units, and each pixel unit includes a first dichromic pixel and a second dichromic image having substantially the same shielding area covered by the light shielding structure. The pixel and the third dichromatic pixel enable the display device to have high contrast, good transmittance, and avoid the phenomenon of color moire.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

In this article, a range represented by "one value to another value" is a summary representation that avoids enumerating all the values in the range one by one in the specification. Therefore, the record of a specific numerical range covers any numerical value within the numerical range and a smaller numerical range defined by any numerical value within the numerical range, as if the arbitrary numerical value and the smaller numerical value were explicitly written in the description. Same scope.

As used herein, "about," "approximately," "essentially," 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 The measurement in question and the specific number of measurement-related errors (ie, limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or for example within ± 30%, ± 20%, ± 15%, ± 10%, ± 5%. Furthermore, the terms "about", "approximately", "essentially", or "substantially" used herein may be based on measurement properties, cutting properties, or other properties to select a more acceptable range of deviations or standard deviations. Not all standard properties apply.

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. Furthermore, "electrically connected" may mean that there are other components between the two components.

It should be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, and / or sections, and / Or in part should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer," or "portion" discussed below may be termed a second element, component, region, layer, or portion without departing from the teachings herein.

In addition, relative terms such as "lower" and "upper" may be used herein to describe the relationship of one element to another, as shown. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation shown in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "down" may include orientations of "down" and "up", depending on the particular orientation of the drawings.

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 they belong. 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.

FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing an overlapping relationship between a pixel array layer of a display panel and an element layer of a light control panel according to an embodiment of the present invention. FIG. 3 is a schematic partial top view of a display panel according to an embodiment of the present invention. 4 is a schematic partial top view of a light control panel according to an embodiment of the present invention. In order to make it clear, FIG. 2, FIG. 3 and FIG. 4 respectively omit part of the film layers and components. In addition, FIG. 4 illustrates a local light control panel 30 corresponding to the area K in FIG. 2.

Referring to FIG. 1, the display device 10 may include a backlight module 100, a display panel 200 and a light control panel 300. In this embodiment, the light control panel 300 is disposed on the backlight module 100, and the display panel 200 is disposed on the light control panel 300. From another perspective, the light control panel 300 is disposed between the backlight module 100 and the display panel 200. In addition, in this embodiment, the display device 10 may further include a polarizing structure P1, a polarizing structure P2, and a polarizing structure P3. In this embodiment, the polarization structure P1 is located between the backlight module 100 and the light control panel 300, the polarization structure P2 is located between the light control panel 300 and the display panel 200, and the polarization structure P3 is located away from the light control panel 200 of the display panel 200 300 on one side. In this embodiment, the polarizing structure P1, the polarizing structure P2, and the polarizing structure P3 are, for example, a polarizer or any polarized structure known to those skilled in the art in a field suitable for passing light of a specific polarization state. The invention is not limited.

In this embodiment, the backlight module 100 is adapted to provide a surface light source, and the light emitted by the surface light source passes through the light control panel 300 and the display panel 200 in order to provide a display screen. In this embodiment, the types of light sources used by the backlight module 100 may include: fluorescent tubes (for example, cold cathode fluorescent tubes, hot cathode fluorescent tubes, external electrode fluorescent tubes, flat fluorescent lamps). Tube, other suitable lamps, or a combination of the above), point light sources (for example: inorganic light emitting diodes, organic small molecule phosphorescent / fluorescent light emitting diodes, organic polymer phosphorescent / fluorescent light emitting diodes, others An appropriate diode, or a combination thereof), a plasma-type panel light source, a nano-carbon tube light source, another suitable type of light source, or a combination thereof. On the other hand, in this embodiment, the backlight module 100 may be a side-type backlight module, a direct-type backlight module, or other suitable forms of backlight modules.

Please refer to FIGS. 1 to 3 at the same time. In this embodiment, the display panel 200 may include a substrate 202, a pixel array layer 204, a liquid crystal layer 206, a common electrode layer 208, a color filter layer 210, a black matrix 212, and a substrate. 214. For clarity, FIG. 3 omits the liquid crystal layer 206, the common electrode layer 208, the black matrix 212, and the substrate 214.

The material of the substrate 202 may be glass, quartz, or an organic polymer. The substrate 214 is located opposite the substrate 202. The material of the substrate 214 may be glass, quartz, or an organic polymer. In this embodiment, the liquid crystal layer 206 serves as a display medium, and is disposed between the substrate 202 and the substrate 214. In other words, in the present embodiment, the display panel 200 is a liquid crystal display panel. However, the present invention is not limited to this. In other embodiments, the display panel 200 may also be other suitable non-emissive display panels, such as an electrophoretic display panel, an electrowetting display panel, an electric dust display panel, an electrochromic display panel, etc., without using the liquid crystal layer 206, and Use other display media. In addition, in this embodiment, the liquid crystal layer 206 includes, for example, liquid crystal molecules that can be rotated or switched by a horizontal electric field or liquid crystal molecules that can be rotated or switched by a vertical electric field, but the present invention Not limited to this.

The pixel array layer 204 is disposed on the substrate 202. In this embodiment, the pixel array layer 204 may include a plurality of scan lines SL2, a plurality of data lines DL2, and a plurality of pixel units U2. For clarity, only a partial display panel 200 corresponding to one pixel unit U2 is shown in FIG. 3. In this embodiment, the liquid crystal layer 206 is superimposed on the plurality of pixel units U2. In this embodiment, the extending direction of the scanning line SL2 is different from the extending direction of the data line DL2. In addition, in this embodiment, the scan lines SL2 and the data lines DL2 are located in different film layers, and an insulating layer (not shown) is sandwiched between the scan lines SL2 and the data lines DL2. Based on the consideration of conductivity, the scan line SL2 and the data line DL2 are generally made of a metal material. However, the present invention is not limited to this. According to other embodiments, the scan line SL2 and the data line DL2 may also use, for example, an alloy, a nitride of a metal material, an oxide of a metal material, an oxynitride of a metal material, a non-metal but Materials with conductive properties, or other suitable materials. In addition, in this embodiment, the scan lines SL2 and the data lines DL2 may have a single-layer or multi-layer structure, respectively.

In this embodiment, each pixel unit U2 may include a first dice pixel SP1, a second dice pixel SP2, and a third dice pixel SP3. In this embodiment, each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third dice pixel SP3 and one of the plurality of scanning lines SL2 and a plurality of data are respectively One of the lines DL2 is electrically connected. In this embodiment, each first dice pixel SP1, each second dice pixel SP2, and each third dice pixel SP3 include an active element T2 and a picture electrically connected to the active element T2, respectively. Element electrode PE. The active element T2 may be any thin film transistor known to those having ordinary knowledge in the art, and includes, for example, a gate electrode, a channel layer, a source electrode, and a drain electrode (not labeled). In this embodiment, the pixel electrode PE is a block pixel electrode, but the present invention is not limited thereto. In other embodiments, the pixel electrode PE may be any pixel electrode known to those skilled in the art, such as a pixel electrode with a slit pattern. In this embodiment, the material of the pixel electrode PE may include a transparent metal oxide conductive material, such as (but not limited to): indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, Indium gallium zinc oxide, or a stacked layer of at least two of the above. As mentioned above, the liquid crystal layer 206 overlaps a plurality of pixel units U2, so the liquid crystal molecules in the liquid crystal layer 206 are determined by the potential difference between the pixel electrode PE and the common electrode layer 208 (described in detail later). drive. In addition, in this embodiment, in each pixel unit U2, the extension of the first dice pixel SP1, the second dice pixel SP2, and the third dice pixel SP3 along one of the scanning lines SL2. Directions are arranged in order.

The black matrix 212 is disposed on the substrate 214. In this embodiment, the black matrix 212 is used to shield components and traces in the display panel 200 that are not intended to be viewed by a user, such as scan lines SL3, data lines DL2, and active components T2. Although this embodiment takes the black matrix 212 on the substrate 214 as an example, the invention is not limited thereto. In other embodiments, the black matrix 212 is located on the substrate 202 and forms a structure of a black matrix on a pixel array (BOA). In addition, the material of the black matrix 212 is, for example, a material with low reflectivity such as a black resin or a light-shielding metal (for example, chromium).

The color filter layer 210 is disposed on the substrate 214. In the present embodiment, the color filter layer 210 may include a plurality of first sets respectively corresponding to a plurality of first dice pixels SP1, a plurality of second dice pixels SP2, and a plurality of third dice pixels SP3. The color filter pattern CF1, a plurality of second color filter patterns CF2, and a plurality of third color filter patterns CF3. As described above, in each pixel unit U2, the first dice pixel SP1, the second dice pixel SP2, and the third dice pixel SP3 are sequentially extended along one of the scanning lines SL2. Arrangement, corresponding to one pixel unit U2, the first color filter pattern CF1, the second color filter pattern CF2, and the third color filter pattern CF3 are also sequentially arranged along the extension direction of one of the scan lines SL2, such as Shown in Figure 3. In addition, in this embodiment, the first dice pixel SP1, the second dice pixel SP2, and the third dice pixel SP3 are respectively a red subpixel, a green subpixel, and a blue subpixel, but The invention is not limited to this. In detail, when the liquid crystal molecules in the liquid crystal layer 206 are subjected to the pixel electrode PE of the first dice pixel SP1, the pixel electrode PE of the second dice pixel SP2, and the pixel electrode of the third dice pixel SP3. When the potential difference between the PE and the common electrode layer 208 (described in detail later) is driven to cause light from the backlight module 100 to pass through, the red, green, and blue colors are displayed respectively. Although this embodiment takes the color filter layer 210 on the substrate 214 as an example, the invention is not limited thereto. In other embodiments, the color filter layer 210 is located on the substrate 202 and forms a structure of the color filter layer on a pixel array (COA).

The common electrode layer 208 is disposed on the substrate 214. In this embodiment, the material of the common electrode layer 208 may include a transparent metal oxide conductive material, such as (but not limited to): indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, Indium gallium zinc oxide, or a stacked layer of at least two of the above. In this embodiment, the common electrode layer 208 can be electrically connected to a common voltage, for example, about 0 volts.

It is worth mentioning that according to the above, any person with ordinary knowledge in the technical field should understand that the display panel 200 also includes other components, such as an alignment film and a peripheral driving circuit. In addition, the present invention does not limit the type of the display panel 200. Therefore, the display panel 200 is, for example, a twisted nematic (TN) type display panel, a vertical alignment (VA) type display panel, and a fringe field switching (Fringe Field). Switching (FFS) type display panel, In-Plane Switching (IPS) type display panel or Advanced Hyper-Viewing Angle (AHVA) type display panel. Any person with ordinary knowledge in the technical field should understand that the structure of the display panel 200 will vary with different types. For example, when the display panel 200 is a fringe electric field switching display panel, a coplanar conversion display panel, or When the viewing angle is high-definition technology type display panel, the common electrode layer 208 is disposed on the substrate 202 and may be a part of the pixel array layer 204. The pixel electrode PE has a slit pattern.

Please refer to FIGS. 1, 2 and 4 at the same time. In this embodiment, the light control panel 300 may include a substrate 302, an element layer 304, a liquid crystal layer 306, a common electrode layer 308, and a substrate 310. For clarity, FIG. 4 omits the liquid crystal layer 306, the common electrode layer 308, and the substrate 308.

The substrates 302 and 308 can be made of glass, quartz, or organic polymers. The substrate 308 is located opposite the substrate 302. In this embodiment, the liquid crystal layer 306 is disposed between the substrate 302 and the substrate 308. In other words, the light control panel 300 is a liquid crystal type light control panel. In this embodiment, the liquid crystal layer 306 includes, for example, liquid crystal molecules that can be rotated or switched by a horizontal electric field or liquid crystal molecules that can be rotated or switched by a vertical electric field, but the present invention is not limited to This is limited.

The element layer 304 is disposed on the substrate 302. In this embodiment, the element layer 304 may include a plurality of scan lines SL1, a plurality of data lines DL1, a plurality of active elements T1, and a plurality of control electrodes DE. In this embodiment, the liquid crystal layer 306 is stacked on the plurality of active elements T1 and the plurality of control electrodes DE. In this embodiment, the scan line SL1 and the data line DL1 are arranged to cross each other. In addition, in this embodiment, the scan lines SL1 and the data lines DL1 are located in different film layers, and an insulating layer (not shown) is sandwiched between the scan lines SL1 and the data lines DL1. In this embodiment, the shape of each data line DL1 is zigzag. As shown in FIG. 2, in this embodiment, each polygonal line segment in each jagged data line DL1 is at least one first dice pixel SP1, one second dice pixel SP2, and one third The dice pixels SP3 overlap. That is to say, in this embodiment, each zigzag line segment of each zigzag data line DL1 spans at least an area occupied by one pixel unit U2.

In this embodiment, the materials of the scan lines SL1 and the data lines DL1 are light-shielding materials, so the scan lines SL1 and the data lines DL1 together can form a light-shielding structure SS. For the materials of the scan line SL1 and the data line DL1, refer to the materials of the aforementioned scan line SL2 and the data line DL2, and details are not described herein.

In this embodiment, each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third dice pixel SP3 is substantially equal in the shielding area covered by the light shielding structure SS. In other words, in this embodiment, the area where the vertical projection of each first color sub-pixel SP1 on the substrate 302 overlaps with the vertical projection of the light-shielding structure SS on the substrate 302, and each second color sub-pixel SP2 is The area where the vertical projection on the substrate 302 overlaps with the vertical projection of the light-shielding structure SS on the substrate 302, and the vertical projection of each third dice pixel SP3 on the substrate 302 and the vertical projection of the light-shielding structure SS on the substrate 302 The overlapping areas are substantially equal to each other. In this way, in the display device 10, under the shielding effect of the black matrix 212 and the light shielding structure SS, each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third dice The pixels SP3 may have substantially equal aperture ratios. On the other hand, in the present embodiment, the area of any one of the first dice pixel SP1, the second dice pixel SP2, and the third dice pixel SP3 is A and is masked by the light shielding structure SS. The area is B, and A and B satisfy the following relationship: 0% <B / A <about 65%.

In this embodiment, each active device T1 is electrically connected to one of the plurality of scanning lines SL1 and one of the plurality of data lines DL1, respectively. The active element T1 may be any thin film transistor well known to those with ordinary knowledge in the art, and includes, for example, a gate electrode, a channel layer, a source electrode, and a drain electrode (not labeled).

In this embodiment, each control electrode DE is electrically connected to one of the plurality of active elements T1, respectively. In this embodiment, each control electrode DE has a plurality of strip electrodes SE. In other words, in this embodiment, each of the control electrodes DE is an electrode having a slit pattern. However, the present invention is not limited to this. In other embodiments, the control electrode DE may be a block electrode. In addition, in each of the control electrodes DE, a plurality of strip electrodes SE respectively overlap one of the plurality of data lines DL1. As shown in FIG. 4, in each of the control electrodes DE, a plurality of strip electrodes SE are respectively overlapped with a broken line segment in the corresponding data line DL1. In detail, as shown in FIG. 4, in each of the control electrodes DE, each of the strip-shaped electrodes SE has a bent portion C1 and a bent portion C2, where the bent portion C1 overlaps the corresponding data line DL1 and is bent. The portion C2 overlaps the corresponding scan line SL1. It is worth mentioning that although the bending portion C1 and the bending portion C2 of the strip-shaped electrode SE are prone to generate a black phenomenon (disclination) that affects the penetration of light from the backlight module 100, the bending portion C1 is It overlaps with the corresponding data line DL1, and the bent portion C2 overlaps with the corresponding scan line SL1, thereby preventing the black streak phenomenon from affecting the transmittance of the light control panel 300. On the other hand, since each control electrode DE has a plurality of strip-shaped electrodes SE similar to a “ㄑ” shape, the liquid crystal molecules in the liquid crystal layer 306 can be presented in a multi-domain arrangement when driven. .

Please refer to FIG. 2 and FIG. 4 at the same time. In this embodiment, each of the control electrodes DE overlaps the two pixel units U2. As such, in this embodiment, the resolution of the light control panel 300 is lower than the resolution of the display panel 200 to avoid reducing the aperture ratio.

As mentioned above, the liquid crystal layer 306 is superimposed on the plurality of active elements T1 and the plurality of control electrodes DE. Therefore, the liquid crystal molecules in the liquid crystal layer 306 can be controlled by the control of the active element T1 to determine whether the light from the backlight module 100 passes through. Through. In detail, the liquid crystal molecules in the liquid crystal layer 306 can be driven by enabling the active element T1 so that there is a potential difference between the control electrode DE and the common electrode layer 308, so that light from the backlight module 100 can pass through the light control panel. 300. For example, by enabling a part of the active elements T1 of the plurality of active elements T1, the liquid crystal molecules corresponding to the enabled active elements T1 can be driven to allow light from the backlight module 100 to pass through the light control panel 300. The liquid crystal molecules corresponding to the non-enabled active element T1 do not allow light from the backlight module 100 to pass through the light control panel 300.

The common electrode layer 308 is disposed on the substrate 310. However, the present invention is not limited to this. In other embodiments, the common electrode layer 308 may be disposed on the substrate 302 and belong to a part of the element layer 304. In this embodiment, the material of the common electrode layer 308 may include a transparent metal oxide conductive material, such as (but not limited to): indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, Indium gallium zinc oxide, or a stacked layer of at least two of the above. In this embodiment, the common electrode layer 308 can be electrically connected to a common voltage, for example, about 0 volts.

It is worth noting that because the light control panel 300 can control the light from the backlight module 100 to pass through the light control panel 300 in a partitioned manner, thereby displaying through the backlight module 100, the light control panel 300, and the display panel 200, which are sequentially stacked, to display The device 10 achieves the effect of high contrast.

In addition, when the resolution of the light control panel 300 is different from that of the display panel 200, if the first dice pixel SP1, the second dice pixel SP2 and the third dice pixel SP3 of a single pixel unit U2 When the aperture ratios are different, a color moiré effect is likely to occur. Through this embodiment, each of the first dichromatic pixel SP1, each of the second dichromatic pixel SP2, and each of the third color The sub-pixels SP3 are substantially equal in the area covered by the light-shielding structure SS, thereby avoiding or reducing the color moiré effect. In other embodiments, the display device further includes a diffusion sheet with a lower haze overlapping the light control panel 300 to further blur the moire phenomenon, in order to reduce the moire problem and maintain the display device with a good transmittance. The haze value is, for example, 20% to 60%. Examples of the lower haze diffusion sheet are located between the light control panel 300 and the display panel 200, or the display panel 200 is located between the light control panel 300 and the lower haze diffusion sheet.

In addition, in the display device 10, although the light from the backlight module 100 sequentially passes through the light control panel 300 and the display panel 200, since the aperture ratio of the light control panel 300 is higher than the aperture ratio of the display panel 200, the light control The degree to which the panel 300 affects the transmittance of light can be reduced, thereby improving the transmittance of the display device 10.

In addition, when each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third dice pixel SP3 is blocked by the light shielding structure SS, the display device 10 has substantially the same shielding area. The data line DL1 has a zigzag shape, and each control electrode DE overlaps the two pixel units U2. However, the present invention is not limited to this. In other embodiments, each of the control electrodes DE overlaps more than three pixel units U2, for example, three, four, six, or nine. The structure of the light control panel 300 may be based on the structure and requirements of the display device 10 in practice. The adjustment can be performed as long as the shielding areas covered by the light shielding structure SS are substantially equal for each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third dice pixel SP3.

In addition, the light control panel 300 in the display device 10 can cause the liquid crystal molecules in the liquid crystal layer 306 to exhibit a multi-domain alignment arrangement when being driven, but the present invention is not limited thereto. In other embodiments, the liquid crystal molecules in the liquid crystal layer 306 exhibit a single-domain alignment when driven. Hereinafter, other embodiments will be described with reference to FIGS. 5 and 6. It must be noted here that the following embodiments inherit the component symbols and parts of the foregoing embodiments, in which the same or similar symbols are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeatedly described.

FIG. 5 is a schematic partial top view of a light control panel according to another embodiment of the present invention. Please refer to FIG. 5 and FIG. 4 at the same time. The light control panel 400 of FIG. 5 is similar to the light control panel 300 of FIG. 4. The difference is mainly in the configuration of the control electrode DE. Therefore, the light control panel 400 and FIG. The differences between the light control panels 300 in FIG. 4 are described. The same or similar elements are represented by the same or similar symbols, and the description of the same technical content is omitted. For the description of the omitted parts, refer to the foregoing embodiments.

Referring to FIG. 5, in each of the control electrodes DE, each of the strip-shaped electrodes SE has a bent portion C3, and the bent portion C3 may overlap the corresponding scanning line SL1. It is worth mentioning that although the black streaks are easily generated at the bent portion C3 of the strip electrode SE, the bent portion C3 overlaps the corresponding scanning line SL1, thereby preventing the black streaks from affecting the light control panel 400. Effect of the transmission rate. For the rest, please refer to the foregoing embodiments, and details are not described herein.

FIG. 6 is a schematic partial top view of a light control panel according to another embodiment of the present invention. Please refer to FIG. 6 and FIG. 5 at the same time. The light control panel 500 in FIG. 6 is similar to the light control panel 400 in FIG. 5, and the difference is mainly in the configuration of the control electrode DE. Therefore, the light control panel 500 and FIG. The differences between the light control panels 400 in FIG. 5 are described. The same or similar elements are represented by the same or similar symbols, and the description of the same technical content is omitted. For the description of the omitted parts, refer to the foregoing embodiments.

Referring to FIG. 6, in each of the control electrodes DE, each of the strip-shaped electrodes SE has a bent portion C4, and the bent portion C4 may overlap the corresponding data line DL1. It is worth mentioning that although the black streaks are easily generated at the bent portion C4 of the strip electrode SE, the bent portion C4 overlaps the corresponding data line DL1, thereby preventing the black streaks from affecting the light control panel 500. Effect of the transmission rate. On the other hand, please refer to the area K corresponding to FIG. 6 and FIG. 2. In this embodiment, each control electrode DE overlaps with the three pixel units U2. For the rest, please refer to the foregoing embodiments, and details are not described herein.

In addition, in the light control panel 300, the scanning line SL1 and the data line DL1 together constitute a light shielding structure SS, but the present invention is not limited thereto. In other embodiments, the light shielding structure SS may further include a black matrix. Hereinafter, another embodiment will be described with reference to FIG. 7. It must be noted here that the following embodiments inherit the component symbols and parts of the foregoing embodiments, in which the same or similar symbols are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeatedly described.

FIG. 7 is a schematic partial top view of a light control panel according to another embodiment of the present invention. Please refer to FIG. 7 and FIG. 4 at the same time. The light control panel 600 in FIG. 7 is similar to the light control panel 300 in FIG. Differences between the light control panel 600 of FIG. 7 and the light control panel 300 of FIG. 4 will be described below. The same or similar elements are represented by the same or similar symbols, and the description of the same technical content is omitted. For the description of the omitted parts, refer to the foregoing embodiments.

Referring to FIG. 7, in this embodiment, the light-shielding structure SS includes a scan line SL1, a data line DL1, and a black matrix 602. The black matrix 602 includes a light-shielding portion 602a and a light-shielding portion 602b connected to each other. In this embodiment, the light-shielding portion 602a overlaps the scan line SL1, the data line DL1, and the active device T1. In the present embodiment, the light shielding portion 602b overlaps the scan line SL1, the data line DL1, and the active device T1 and is located at the intersection of the scan line SL1 and the data line DL1. In this way, the black matrix 602 can be used to shield components and traces in the light control panel 600 that are not intended to be viewed by a user. In addition, in this embodiment, the width wb of the light shielding portion 602b is larger than the widths wa1 and wa2 of the light shielding portion 602a, so the light shielding portion 602b can provide a regional and additional shielding area. In this way, when the masking area at the specific area is insufficient, the black matrix 602 can be used to achieve each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third The shaded area of the dice pixel SP3 by the shading structure SS is one of the means which is substantially equal. In this embodiment, the material of the black matrix 602 is, for example, a material with low reflectivity such as a black resin or a light-shielding metal (for example, chromium). In addition, according to the foregoing description of the black matrix 212, anyone with ordinary knowledge in the relevant technical field should understand that the black matrix 602 may be disposed on the substrate 302 or the substrate 310. When the black matrix 602 is disposed on the substrate 302, then Form a black matrix on array (BOA) structure. For the rest, please refer to the foregoing embodiments, and details are not described herein.

In addition, in this embodiment, the black matrix 602 includes a light shielding portion 602b to provide a regional and additional shielding area, but the present invention is not limited thereto. In other embodiments, the black matrix 602 may not include the light-shielding portion 602b, but only the light-shielding portion 602a that can be used to shield components and wires that are not intended to be viewed by the user.

In addition, in the present embodiment, the light shielding portion 602b for providing a regional and additional shielding area is a part of the black matrix 602, but the present invention is not limited thereto. In other embodiments, the light shielding portion 602b may also be implemented by the scanning line SL1 and / or the data line DL1. At this time, the material of the light shielding portion 602b may include a metal material, an alloy, a nitride of a metal material, or an oxide of a metal material. , Nitrogen oxides of metallic materials, non-metallic materials with conductive properties, or other suitable materials.

In addition, the configuration of the light shielding portion 602b is not limited to that depicted in FIG. 7, and can be adjusted according to the structure, requirements, etc. of the actual display device. For example, the outline of the light shielding portion 602b may be a geometric shape other than a circle, such as an ellipse, a triangle, a rectangle, a rhombus, a pentagon, a hexagon, and the like. For another example, according to the requirement of insufficient shielding area, the light shielding portion 602b may be disposed at a position other than the intersection of the scanning line SL1 and the data line DL1.

In addition, in the light control panel 300, the shielding areas blocked by the light shielding structure SS in each of the first dice SP1, each of the second dice SP2, and each of the third dice SP3 are substantially equal. At this time, each of the control electrodes DE overlaps the two pixel units U2, but the present invention is not limited thereto. As described above, in the case where each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third dice pixel SP3 is substantially blocked by the light shielding structure SS, Next, the architecture of the light control panel 300 can be adjusted according to the architecture, requirements, etc. of the display device 10 in practice. Hereinafter, other embodiments will be described with reference to FIGS. 8 to 10. It must be noted here that the following embodiments inherit the component symbols and parts of the foregoing embodiments, in which the same or similar symbols are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeatedly described.

FIG. 8 is a schematic partial top view of a display device according to another embodiment of the present invention. Please refer to FIG. 8 and FIG. 2 at the same time. The display device 20 of FIG. 8 is similar to the display device 10 of FIG. 2. Therefore, the same or similar elements are represented by the same or similar symbols, and the description of the same technical content is omitted. For the description of the omitted parts, refer to the foregoing embodiments. Hereinafter, differences between the display device 20 of FIG. 8 and the display device 10 of FIG. 2 will be described. It is worth noting that although the control electrode DE is not shown in FIG. 8, according to the foregoing description of the display device 10 based on FIGS. 1 to 4, anyone with ordinary knowledge in the relevant technical field should understand that the display device 20 The structure, connection relationship, and setting relationship of the regulating electrode DE are related.

Please refer to FIG. 8. In this embodiment, each data line DL2 has a zigzag shape. As shown in FIG. 8, in the light control panel 400, each of the first dice pixel SP1, each of the second dice pixel SP2, and each of the third dice pixel SP3 is blocked by the light shielding structure SS. When the areas are substantially equal, each control electrode DE overlaps the four pixel units U2. In addition, as shown in FIG. 8, each zigzag segment in each jagged data line DL1 is at least one first dice pixel SP1, one second dice pixel SP2, and one third dice pixel. SP3 overlaps. That is to say, in this embodiment, each zigzag line segment of each zigzag data line DL1 spans at least an area occupied by one pixel unit U2. For the rest, please refer to the foregoing embodiments, and details are not described herein.

FIG. 9 is a schematic partial top view of a display device according to another embodiment of the present invention. Please refer to FIG. 9 and FIG. 2 at the same time. The display device 30 of FIG. 9 is similar to the display device 10 of FIG. 2. Therefore, the same or similar elements are represented by the same or similar symbols, and the description of the same technical content is omitted. For the description of the omitted parts, refer to the foregoing embodiments. Hereinafter, differences between the display device 30 of FIG. 9 and the display device 10 of FIG. 2 will be described. It is worth noting that although the control electrode DE is not shown in FIG. 9, according to the foregoing description of the display device 10 according to FIGS. 1 to 4, anyone with ordinary knowledge in the relevant technical field should understand that the display device 30 The structure, connection relationship, and setting relationship of the regulating electrode DE are related.

Referring to FIG. 9, in the display device 30, the horizontal shortest distance between the adjacent data lines DL1 of the light control panel 500 is approximately equal to the width of the two pixel units U2, and the horizontal shortest distance between the adjacent scan lines SL1 of the light control panel 500. It is approximately equal to the length of two pixel units U2. Each control electrode DE corresponds to the area of four pixel units U2. By providing a zigzag data line DL1, for the entire display device 30, each first The shaded areas of the dice pixels SP1, each of the second dice pixels SP2, and each of the third dice pixels SP3 by the light shielding structure SS are substantially equal. For the rest, please refer to the foregoing embodiments, and details are not described herein.

FIG. 10 is a schematic partial top view of a display device according to another embodiment of the present invention. Please refer to FIG. 10 and FIG. 2 at the same time. The display device 40 of FIG. 10 is similar to the display device 10 of FIG. 2. Therefore, the same or similar elements are represented by the same or similar symbols, and description of the same technical content is omitted. For the description of the omitted parts, refer to the foregoing embodiments. Hereinafter, differences between the display device 40 of FIG. 10 and the display device 10 of FIG. 2 will be described. It is worth noting that although the regulating electrode DE is not shown in FIG. 10, according to the foregoing description of the display device 10 according to FIGS. 1 to 4, any person having ordinary knowledge in the technical field should understand that the display device 40 The structure, connection relationship, and setting relationship of the regulating electrode DE are related.

10, in the display device 40, the horizontal shortest distance between adjacent data lines DL1 of the light control panel 600 is approximately equal to the width of two pixel units U2, and the horizontal shortest distance between adjacent scan lines SL1 of the light control panel 500. Approximately equal to the length of one pixel unit U2. Each control electrode DE corresponds to the area of two pixel units U2. By setting a zigzag data line DL1, each first dice in the light control panel 600 The masking areas of the pixels SP1, each second dice pixel SP2, and each third dice pixel SP3 covered by the light shielding structure SS are substantially equal. As shown in FIG. 10, each zigzag segment in each jagged data line DL1 is at least two first dice pixels SP1, two second dice pixels SP2, and two third dice pixels. Prime SP3 overlaps. That is to say, in this embodiment, each zigzag segment in each zigzag data line DL1 spans at least the area occupied by the two pixel units U2. For the rest, please refer to the foregoing embodiments, and details are not described herein.

In summary, in the display device of at least one embodiment of the present invention, the light control panel through the backlight film group includes a light shielding structure and a plurality of control electrodes, and the light shielding structure includes a plurality of scanning lines and a plurality of data lines. The plurality of control electrodes are electrically connected to one of the scan lines and one of the data lines, respectively, and the display panel located on the light control panel includes a plurality of pixel units, and each pixel unit includes a light shielding structure. The first dice pixel, the second dice pixel, and the third dice pixel having substantially the same shielding area allow the display device to have high contrast, good transmittance, and avoid the phenomenon of color moire.

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

10, 20, 30, 40‧‧‧ display devices

100‧‧‧ backlight module

200‧‧‧ display panel

202, 214, 302, 310‧‧‧ substrate

204‧‧‧Pixel Array Layer

206, 306‧‧‧ liquid crystal layer

208、308‧‧‧Common electrode layer

210‧‧‧color filter

212, 602‧‧‧ black matrix

300, 400, 500, 600‧‧‧ light control panel

304‧‧‧Element Layer

602a, 602b‧‧‧‧Shading section

C1, C2, C3, C4‧‧‧Bends

CF1‧‧‧first color filter pattern

CF2‧‧‧Second Color Filter Pattern

CF3‧‧‧Third Color Filter Pattern

DE‧‧‧ Regulating electrode

DL1, DL2‧‧‧ data line

K‧‧‧ area

P1, P2, P3‧‧‧polarized structure

PE‧‧‧Pixel electrode

SE‧‧‧ Strip electrode

SL1, SL2‧‧‧scan line

SP1‧‧‧first dice pixel

SP2‧‧‧Second Pixel

SP3‧‧‧Third Pixel

SS‧‧‧Shading Structure

T1, T2‧‧‧active components

U2‧‧‧Pixel Unit

wa1, wa2, wb‧‧‧width

FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing an overlapping relationship between a pixel array layer of a display panel and an element layer of a light control panel according to an embodiment of the present invention. FIG. 3 is a schematic partial top view of a display panel according to an embodiment of the present invention. 4 is a schematic partial top view of a light control panel according to an embodiment of the present invention. FIG. 5 is a schematic partial top view of a light control panel according to another embodiment of the present invention. FIG. 6 is a schematic partial top view of a light control panel according to another embodiment of the present invention. FIG. 7 is a schematic partial top view of a light control panel according to another embodiment of the present invention. FIG. 8 is a schematic partial top view of a display device according to another embodiment of the present invention. FIG. 9 is a schematic partial top view of a display device according to another embodiment of the present invention. FIG. 10 is a schematic partial top view of a display device according to another embodiment of the present invention.

Claims (12)

A display device includes: a backlight module; a light control panel disposed on the backlight module and including: a light-shielding structure; a plurality of first active elements; and a plurality of control electrodes, respectively, with the first active devices. One of the elements is electrically connected; and a display panel is disposed on the light control panel and includes a plurality of pixel units, wherein each of the pixel units includes a substantially equal shielding area covered by the light shielding structure. A dice pixel, a second dice pixel, and a third dice pixel, wherein the light shielding structure includes a plurality of first scanning lines and a plurality of first data lines, and the outer portions of the first data lines are The shape is zigzag. The display device according to item 1 of the scope of patent application, wherein an area of one of the first dice pixels, the second dice pixels, and the third dice pixels is A, and The area covered by the light-shielding structure is B, 0% <B / A <65%. The display device according to item 1 of the patent application scope, wherein each of the control electrodes corresponds to at least one of the first dice pixels, at least one of the second dice pixels, and the first Set at least one of the three dice pixels. The display device according to item 1 of the scope of patent application, wherein the first active elements are electrically connected to one of the first scan lines and one of the first data lines, respectively. The display device according to item 4 of the scope of patent application, wherein each of the control electrodes has a plurality of strip-shaped electrodes respectively overlapping one of the first data lines, and the light control panel further includes a first liquid crystal. Layers are superimposed on the control electrodes. The display device according to item 4 of the scope of patent application, wherein the light-shielding structure further includes a black matrix overlapping the first scan lines and the first data lines. The display device according to item 4 of the scope of patent application, wherein the display panel further includes: a plurality of second scanning lines and a plurality of second data lines, wherein the first dice pixels and the second dice are The pixels and the third dice pixels are electrically connected to one of the second scanning lines and one of the second data lines, respectively; and a plurality of first color filter patterns, a plurality of The second color filter pattern and the plurality of third color filter patterns are respectively set for the first dice pixels, the second dice pixels, and the third dice pixels. In the pixel unit, the first dice pixel, the second dice pixel, and the third dice pixel are sequentially arranged along an extending direction of one of the second scanning lines, wherein the first The color filter pattern, the second color filter pattern, and the third color filter pattern are red, green, and blue, respectively. The display device according to item 1 of the scope of patent application, further includes a diffusion sheet overlapping the light control panel, and the haze value of the diffusion sheet is about 20% to 60%. The display device according to item 1 of the patent application scope, wherein the display panel further includes a second liquid crystal layer overlapping the pixel units, wherein each of the first dice pixel and each of the second dice pixel The pixel and each of the third dice pixels each include: a second active element; and a pixel electrode electrically connected to the second active element, wherein each of the control electrodes overlaps the pixel units N, N is 2, 3, 4, 6, or 9. The display device according to item 1 of the scope of patent application, wherein each polyline segment in each of the first data lines and each of the first dice pixel, each of the second dice pixel, or each of the The third dice pixel overlaps to span at least one area occupied by the pixel unit. The display device according to item 1 of the scope of patent application, wherein each polyline segment in each of the first data lines and each of the first dice pixel, each of the second dice pixel, or each of the The third dice pixel overlaps to span an area occupied by at least two of the pixel units. A display device includes: a backlight module; a light control panel disposed on the backlight module and including: a light-shielding structure; a plurality of first active elements; and a plurality of control electrodes, respectively, with the first active devices. One of the elements is electrically connected; and a display panel is disposed on the light control panel and includes a plurality of pixel units, wherein each of the pixel units includes a substantially equal shielding area covered by the light shielding structure. A dice pixel, a second dice pixel, and a third dice pixel, wherein each of the control electrodes corresponds to at least one of the first dice pixels and the second dice picture At least one of the pixels and at least one of the third color sub-pixels are provided, wherein the display panel further includes a plurality of first color filter patterns, a plurality of second color filter patterns, and a plurality of third The color filter patterns are respectively set for the first dice pixels, the second dice pixels, and the third dice pixels, wherein the first color filter pattern and the second color filter The pattern and the third color filter pattern are red, green, and blue, respectively