TW201530528A - Display panel - Google Patents

Abstract

A display panel includes a first substrate, a second substrate, a display medium layer, at least two pixel units, a black matrix, a first electrode, a second electrode, a third electrode, a first interfering circuit, and a second interfering circuit. The display medium layer is disposed between the first substrate and the second substrate. The pixel units are disposed between the first substrate and the display medium layer. The black matrix is disposed between the second substrate and the display medium layer, and disposed between the two pixel units. The first electrode, the second electrode, and the third electrodes are disposed on or above the first substrate and between the two pixel units. The second electrode and the third electrode are disposed at two opposite sides of the first electrode. The first electrode is disposed corresponding to the black matrix. The first interfering circuit is configured for providing a first signal to the first electrode. The second interfering circuit is configured for providing a second signal to the second electrode and the third electrode.

Description

Display panel

The present invention relates to a display panel, and more particularly to a privacy-proof display panel.

Generally, the viewing angle of the display panel is small, and the picture quality of the display panel on the side is low, and the contrast and color performance are poor. In order to increase the use level of the display panel, the industry has begun to invest in the development of a wide viewing angle technology, so that the user can feel good picture quality in the case of the front view and the side view display panel.

However, as the portability of the display panel is greatly increased, the user often needs to carry the display panel to go out, and often needs to frequently use it in a public place. In this way, when the user views a private document or enters a private message, the wide viewing angle technology will increase the chance for the outsider to peep.

The invention provides a display panel which can be switched between a display state and a peep prevention state according to user requirements.

One aspect of the present invention provides a display panel including a first base a plate, a second substrate, a display medium layer, at least two pixel units, a light shielding layer, a first electrode, a second electrode, a third electrode, a first interference circuit, and a second interference circuit. The second substrate is disposed opposite to the first substrate. The display medium layer is located between the first substrate and the second substrate. The pixel unit is located between the first substrate and the display medium layer. The light shielding layer is located between the second substrate and the display medium layer and is located between the two pixel units. The first electrode is located on the first substrate between the pixel units. The second electrode and the third electrode are located on the first substrate between the two pixel units, and are respectively located on opposite sides of the first electrode. The first electrode is disposed corresponding to the light shielding layer. The first interference circuit is electrically connected to the first electrode for providing the first signal to the first electrode. The second interference circuit is electrically connected to the second electrode and the third electrode for providing the second signal to the second electrode and the third electrode.

In one or more embodiments, the first interference circuit includes a common potential source, an interference potential source, and a switch. A common potential source is used to provide a common potential. The interference potential source is used to provide an interference potential. The switch electrically connects the common potential source and the interference potential source to the first electrode. The switch is configured to select one of the common potential and the interference potential to transmit the first signal to the first electrode.

In one or more embodiments, the second interference circuit includes a common potential source and a common electrode. A common potential source is used to provide a common potential. The common electrode is electrically connected to the common potential source, the second electrode and the third electrode for transmitting the common potential to the second electrode and the third electrode.

In one or more embodiments, the first interference circuit includes a common potential source and a common electrode. A common potential source is used to provide a common potential. The common electrode is electrically connected to the common potential source and the first electrode for transmitting the common potential to the first electrode.

In one or more embodiments, the second interference circuit includes a common potential source, an interference potential source, a first switch, and a second switch. A common potential source is used to provide a common potential. The interference potential source is used to provide an interference potential. The first switch electrically connects the common potential source and the interference potential source to the second electrode. The first switch is configured to select one of the common potential and the interference potential to transmit the second signal to the second electrode. The second switch electrically connects the common potential source and the interference potential source to the third electrode. The second switch is configured to select one of the common potential and the interference potential to transmit the second signal to the third electrode.

In one or more embodiments, the light shielding layer is further disposed to correspond to at least one of the second electrode and the third electrode.

In one or more embodiments, the display panel further includes at least one data line between the first electrode and the first substrate.

In one or more embodiments, the first electrode, the second electrode, and the third electrode are substantially parallel to the direction in which the data lines extend.

In one or more embodiments, the display panel further includes a first insulating layer and a second insulating layer. The first insulating layer is between the data line and the first electrode. The second insulating layer is interposed between the first electrode and the second electrode and the third electrode.

In one or more embodiments, the display panel further includes a first insulating layer and a second insulating layer. The first insulating layer is between the data line and the second electrode and the third electrode. The second insulating layer is interposed between the second electrode and the third electrode and the first electrode.

In one or more embodiments, the display panel further includes a first insulating layer and a second insulating layer. The second insulating layer is located above the first insulating layer. Each pixel unit includes a common electrode layer and a pixel electrode. Common electrode layer is located Between the first insulating layer and the second insulating layer. The pixel electrode is located on the second insulating layer.

In one or more embodiments, the display panel further includes a first insulating layer and a second insulating layer. The second insulating layer is located above the first insulating layer. Each pixel unit includes a pixel electrode and a common electrode layer. The pixel electrode is located between the first insulating layer and the second insulating layer. The common electrode layer is on the second insulating layer.

In one or more embodiments, the display panel further includes at least two filter layers on the second substrate and located between the display medium layer and the second substrate, and respectively disposed corresponding to the two pixel units.

In one or more embodiments, the display panel further includes at least two filter layers on the first substrate and between the display medium layer and the first substrate, and respectively disposed corresponding to the two pixel units.

Another aspect of the present invention provides a display method of a display panel, comprising the following steps:

(1) Provide a display panel. The display panel includes at least two pixel units, a first electrode, a second electrode, and a third electrode. The first electrode, the second electrode and the third electrode are both located between the two pixel units, and the second electrode and the third electrode are respectively located at two sides of the first electrode.

(2) providing an interference potential to one of the first electrode, the second electrode, and the third electrode when the display panel is in the anti-spy state, and providing a common potential to the first electrode, the second electrode, and the third electrode The other two.

(3) When the display panel is in the display state, a common potential is supplied to the first electrode, the second electrode, and the third electrode.

In one or more embodiments, the step of the display panel in the anti-spy state includes the following steps:

(2.1) At the first timing, an interference potential is supplied to the first electrode, and a common potential is supplied to the second electrode and the third electrode.

(2.2) At the second timing, a common potential is supplied to the first electrode, the second electrode, and the third electrode.

(2.3) Switching the first timing and the second timing.

In one or more embodiments, the step of the display panel in the anti-spy state includes the following steps:

(2.1) At the first timing, an interference potential is supplied to the second electrode, and a common potential is supplied to the first electrode and the third electrode.

(2.2) At the second timing, an interference potential is supplied to the third electrode, and a common potential is supplied to the first electrode and the second electrode.

(2.3) Switching the first timing and the second timing.

In the above embodiment, the first interference circuit provides the first signal to the first electrode, and the second interference circuit provides the first electrode and the second electrode by providing the second signal to the second electrode and the third electrode. The electric field generated together with the third electrode can affect the display medium in the display medium layer, whereby when the display panel is in the anti-spy state, the large viewing angle direction can provide an interference picture, and at the same time, the display picture can be provided in the front view direction to narrow The purpose of the perspective display.

110‧‧‧First substrate

120‧‧‧second substrate

130‧‧‧Display media layer

140, 150‧‧‧ pixel units

142, 152‧‧‧ common electrode layer

144, 154‧‧‧ pixel electrodes

146, 156‧‧‧Optoelectronics

160‧‧‧Lighting layer

170‧‧‧First electrode

180‧‧‧second electrode

190‧‧‧ third electrode

210‧‧‧First interference circuit

212, 222‧‧‧Common potential source

214, 226‧‧‧Interference potential source

216‧‧‧Switcher

217a, 217b‧‧‧Optoelectronics

218, 224, 245‧‧‧ common electrodes

220‧‧‧Second interference circuit

228‧‧‧First switcher

229‧‧‧Second switcher

230‧‧‧Information line

240‧‧‧ scan line

250‧‧‧first insulation

260‧‧‧Second insulation

270, 280‧‧‧ filter layer

E, E1, E2‧‧‧ electric field

Lines 1-1, 901, 902, 903, 904, 905, 906, 907, 908, 909‧‧

Fig. 1 is a cross-sectional view showing a display panel according to an embodiment of the present invention.

Fig. 2 is a top view of the display panel of Fig. 1.

Fig. 3 is a circuit diagram of the first interference circuit and the first electrode of the display panel of Fig. 1.

Fig. 4 is a circuit diagram of the second interference circuit, the second electrode and the third electrode of the display panel of Fig. 1.

Fig. 5A is a cross-sectional view showing the first timing of the display panel of Fig. 1 in the anti-spy state.

Fig. 5B is a cross-sectional view showing the display panel of Fig. 1 at a second timing in the anti-spy state.

Fig. 6A is a simulation diagram of an embodiment of a display panel to which Fig. 5A is applied.

Fig. 6B is a cross-sectional view of the display panel corresponding to the position of Fig. 6A.

Fig. 7A is a simulation diagram of another embodiment of the display panel to which Fig. 5A is applied.

Fig. 7B is a cross-sectional view of the display panel corresponding to the position of Fig. 7A.

Fig. 8A is a circuit diagram showing another embodiment of the first interference circuit and the first electrode of the display panel of Fig. 1.

Fig. 8B is a circuit diagram showing another embodiment of the second interference circuit, the second electrode and the third electrode of the display panel of Fig. 1.

Fig. 9A is a cross-sectional view showing another embodiment of the display panel of Fig. 1 in the first timing of the anti-spy state.

Fig. 9B is a cross-sectional view showing another embodiment of the display panel of Fig. 1 in the second timing of the anti-spy state.

Fig. 10A is a cross-sectional view showing the display panel of Fig. 1 in a white state when the display panel is displayed.

10B is a cross-sectional view of the display panel of FIG. 1 in a black screen when the display state is displayed.

Figure 11 is a cross-sectional view showing a display panel according to another embodiment of the present invention.

Figure 12 is a cross-sectional view showing a display panel according to still another embodiment of the present invention.

Figure 13A is a cross-sectional view showing a display panel according to still another embodiment of the present invention.

Figure 13B is a cross-sectional view showing a display panel according to still another embodiment of the present invention.

Figure 14 is a cross-sectional view showing a display panel according to another embodiment of the present invention.

The embodiments of the present invention are disclosed in the following drawings, and for the purpose of clarity However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Please refer to FIG. 1 and FIG. 2 simultaneously. FIG. 1 is a cross-sectional view of a display panel according to an embodiment of the present invention, and FIG. 2 is a top view of the display panel of FIG. 1, wherein the cross-sectional position of FIG. 1 is The line segment 1-1 of Fig. 2 shows, and for the sake of clarity, the display medium layer and the light shielding layer are not shown in Fig. 2. The display panel includes a first substrate 110, a second substrate 120, and a display medium The layer 130, the at least two pixel units 140 and 150, the light shielding layer 160, the first electrode 170, the second electrode 180, and the third electrode 190. The second substrate 120 is disposed opposite to the first substrate 110. The display medium layer 130 is located between the first substrate 110 and the second substrate 120. The pixel units 140 and 150 are located between the first substrate 110 and the display medium layer 130. The light shielding layer 160 is located between the second substrate 120 and the display medium layer 130 and between the pixel units 140 and 150. The first electrode 170 is located on the first substrate 110 between the pixel units 140 and 150. The second electrode 180 and the third electrode 190 are located on the first substrate 110 between the pixel units 140 and 150, and are respectively located on opposite sides of the first electrode 170. The first electrode 170 is disposed corresponding to the light shielding layer 160.

Referring to FIG. 3 and FIG. 4 together, FIG. 3 is a circuit diagram of the first interference circuit 210 and the first electrode 170 of the display panel of FIG. 1, and FIG. 4 is the first display panel of FIG. A circuit diagram of the second interference circuit 220, the second electrode 180, and the third electrode 190. The display panel further includes a first interference circuit 210 and a second interference circuit 220. The first interference circuit 210 is electrically connected to the first electrode 170 for providing the first signal to the first electrode 170. The second interference circuit 220 is electrically connected to the second electrode 180 and the third electrode 190 for providing the second signal to the second electrode 180 and the third electrode 190.

In the embodiment, the first interference circuit 210 provides the first signal to the first electrode 170, and the second interference circuit 220 causes the first electrode to provide the second signal to the second electrode 180 and the third electrode 190. 170. The electric field generated by the second electrode 180 and the third electrode 190 can affect the display medium in the display medium layer 130 (as shown in FIG. 1 ), thereby the large viewing angle when the display panel is in the anti-spy state. Can provide interference pictures while A display screen can be provided in the front view direction for the purpose of narrow viewing angle display.

For details, please refer to Figure 3. In the present embodiment, the first interference circuit 210 may include a common potential source 212, an interference potential source 214, and a switch 216. The common potential source 212 is used to provide a common potential. The interference potential source 214 is used to provide an interference potential. The switch 216 is electrically connected to the common potential source 212 and the interference potential source 214 to the first electrode 170. The switch 216 is configured to select one of the common potential and the interference potential to transmit the first signal to the first electrode 170. That is to say, in the embodiment, the first signal may be a common potential or an interference potential. In one or more embodiments, the switch 216 can be, for example, by two transistors 217a and 217b to achieve the switching effect. The transistor 217a is electrically connected to the common potential source 212 and the first electrode 170, and the transistor 217b is electrically connected to the interference potential source 214 and the first electrode 170. Therefore, by controlling the opening and closing of the transistors 217a and 217b, respectively, switching The device 216 can select one of the common potential and the interference potential to transmit the first signal to the first electrode 170.

On the other hand, please refer to Figure 4. In the present embodiment, the second interference circuit 220 may include a common potential source 222 and a common electrode 224. The common potential source 222 is used to provide a common potential. The common electrode 224 is electrically connected to the common potential source 222, the second electrode 180, and the third electrode 190 for transmitting the common potential to the second electrode 180 and the third electrode 190. That is to say, in the present embodiment, the second signal is a common potential.

Next, please refer to Figures 3, 4 and 5A together, wherein FIG. 5A is a cross-sectional view of the display panel of FIG. 1 at the first timing of the anti-spy state. In operation, when the display panel is in the anti-spy state, an interference potential may be provided to one of the first electrode 170, the second electrode 180, and the third electrode 190, And providing a common potential to the first electrode 170, the second electrode 180, and the third electrode 190. For example, in the present embodiment, at the first timing, the switch 216 can select the interference potential source 214 to provide the interference potential to the first electrode 170, and the common potential source 222 can provide the common potential to the second electrode 180 and the third Electrode 190. In this case, the first electrode 170, the second electrode 180, and the third electrode 190 are common to the electric field E generated in the display medium layer 130, and the display medium in the display medium layer 130 is changed (the liquid crystal molecule in FIG. 5A). For example, the light from the pixel unit 140 can be leaked from the right side of the light shielding layer 160 of FIG. 5A at a large angle, and the light from the pixel unit 150 can leak from the left side of the light shielding layer 160 at a large angle. .

Next, please refer to the figures 3, 4 and 5B together, wherein FIG. 5B is a cross-sectional view of the display panel of FIG. 1 at the second timing of the anti-spy state. In the second timing, the switch 216 can select to provide a common potential from the common potential source 212 to the first electrode 170, and the common potential source 222 can provide a common potential to the second electrode 180 and the third electrode 190. In this case, the electric field generated by the first electrode 170, the second electrode 180, and the third electrode 190 in the display medium layer 130 is the same as the normal display state (described later), for example, in FIG. 5B, The display panel displays a black screen. That is to say, the light from the pixel unit 140 does not leak from the right side of the light shielding layer 160 of FIG. 5B, and the light from the pixel unit 150 does not leak from the left side of the light shielding layer 160.

Please also refer to Figures 3, 5A and 5B. Then, the first timing and the second timing are continuously switched. In other words, the switch 216 can continuously switch the signal source to transmit the interference potential and the common potential to the first electrode 170 according to the timing. In this way, for the bystander who views the display panel in a side view direction, at the first The interference screen will be seen during timing, and the normal display will be seen at the second timing. Therefore, by continuously switching between the first timing and the second timing, the bystander watching the side view sees a flashing picture combined with the interference picture and the display picture, instead of simply displaying the picture, thereby achieving Avoid the purpose of bystanders to peep.

Next, please refer to FIGS. 6A and 6B, wherein FIG. 6A is a simulation diagram of an embodiment of the display panel applying FIG. 5A, wherein the horizontal axis is the distance (unit: micrometer), and the vertical axis is the light transmittance, and the first 6B is a cross-sectional view of the display panel corresponding to the position of FIG. 6A. Wherein in FIG. 6A, the line segments 901, 902, 903, 904, 905, 906, 907, 908 and 909 are respectively represented by θ=0°, 11°, 22°, 33°, 45°, 56°, 67°. The light transmittance seen at 78° and 90°, θ=0° is the front view direction, and the larger the value of θ, the more the direction is toward the side view. In the present embodiment, the light shielding layer 160 has a width of 6 μm and an interference potential of 2 V, and the display medium is liquid crystal molecules. In this case, it can be found that in the side view direction (for example, θ=45°, 56°, 67°, 78°, and 90°), the interference potential causes a large amount of light leakage above the pixel units 140 and 150. In contrast, in the front view direction (for example, θ = 0°, 11°, 22°, 33°), the interference potential hardly causes light leakage, although there is a small amount in the vicinity of the light shielding layer 160 (within a distance of about 1.5 μm from the light shielding layer 160). Light leakage, but its light transmittance is less than the light leakage rate of the side view angle.

Referring to FIGS. 7A and 7B, wherein FIG. 7A is a simulation diagram of another embodiment of the display panel to which FIG. 5A is applied, the horizontal axis is the distance (unit: micrometer), and the vertical axis is the light transmittance. Fig. 7B is a cross-sectional view of the display panel corresponding to the position of Fig. 7A. In the embodiment, the width of the light shielding layer 160 The degree is 9 μm, the interference potential is 2 V, and the display medium is a liquid crystal molecule. In this case, it can be found that in the side view direction (for example, θ=45°, 56°, 67°, 78°, and 90°), the interference potential causes a large amount of light leakage above the pixel units 140 and 150. In contrast, in the front view direction (for example, θ = 0°, 11°, 22°, 33°), the interference potential hardly causes light leakage.

Next, please refer to FIG. 8A , which is a circuit diagram of another embodiment of the first interference circuit 210 and the first electrode 170 of the display panel of FIG. 1 . In the present embodiment, the first interference circuit 210 may include a common potential source 212 and a common electrode 218. The common potential source 212 is used to provide a common potential. The common electrode 218 is electrically connected to the common potential source 212 and the first electrode 170 for transmitting the common potential to the first electrode 170. That is to say, in the present embodiment, the first signal is a common potential.

Next, please refer to FIG. 8B , which is a circuit diagram of another embodiment of the second interference circuit 220 , the second electrode 180 and the third electrode 190 of the display panel of FIG. 1 . In the present embodiment, the second interference circuit 220 may include a common potential source 222, an interference potential source 226, a first switch 228, and a second switch 229. The common potential source 222 is used to provide a common potential. The interference potential source 226 is used to provide an interference potential. The first switch 228 is electrically connected to the common potential source 222 and the interference potential source 226 to the second electrode 180. The first switch 228 is configured to select one of the common potential and the interference potential to transmit the second signal to the second electrode 180. The second switch 229 is electrically connected to the common potential source 222 and the interference potential source 226 to the third electrode 190. The second switch 229 is configured to select one of the common potential and the interference potential to transmit the second signal to the third electrode 190. That is to say, in the embodiment, the second signal is common. Potential or interference potential. In one or more embodiments, the first switch 228 and the second switch 229 can be composed of at least two transistors, and the details thereof can be the same as the switch 216 of FIG. 3, and therefore will not be described again.

Next, please refer to FIGS. 8A, 8B and 9A together, wherein FIG. 9A is a cross-sectional view showing another embodiment of the display panel of FIG. 1 in the first timing of the anti-spy state. In operation, when the display panel is in the first timing of the anti-spy state, the common potential source 212 provides a common potential to the first electrode 170, and the first switch 228 can select the self-interference potential source 226 to provide the interference potential to the second electrode. 180, and the second switch 229 can select to provide a common potential from the common potential source 222 to the third electrode 190. In this case, the first electrode 170, the second electrode 180, and the third electrode 190 are common to the electric field E1 generated in the display medium layer 130, and the display medium in the display medium layer 130 is changed (the liquid crystal molecule in FIG. 9A). For example, the light from the pixel unit 140 can be leaked from the right side of the light shielding layer 160 of FIG. 9A at a large angle, and the light from the pixel unit 150 can leak from the left side of the light shielding layer 160 at a large angle. .

Next, please refer to FIGS. 8A, 8B and 9B together, wherein FIG. 9B is a cross-sectional view showing another embodiment of the display panel of FIG. 1 in the second timing of the anti-spy state. In the second timing, the common potential source 212 provides a common potential to the first electrode 170, the first switch 228 can select a common potential from the common potential source 222 to the second electrode 180, and the second switch 229 can select self-interference. The potential source 226 provides an interference potential to the third electrode 190. In this case, the first electrode 170, the second electrode 180, and the third electrode 190 are common to the electric field E2 generated in the display medium layer 130, and the display medium layer 130 is also changed. The property of the display medium (liquid crystal molecules in FIG. 9B) is such that light from the pixel unit 140 can leak from a right angle of the light shielding layer 160 of FIG. 9B at a large angle, and light from the pixel unit 150 It can leak from the left side of the light shielding layer 160 at a large angle.

Please also refer to Figures 8B, 9A and 9B. Then, the first timing and the second timing are continuously switched. In other words, the first switch 228 and the second switch 229 can continuously switch the signal source to transmit the interference potential and the common potential to the second electrode 180 and the third according to the timing. The electrode 190, wherein in the same timing, the second electrode 180 is different from the second signal received by the third electrode 190, that is, when the second electrode 180 receives the interference potential, the third electrode 190 receives Common potential and vice versa. In this way, for the bystander who views the display panel in the side view direction, the first interference picture interfered by the electric field E1 is seen at the first timing, and the second time sequence is seen to be interfered by the electric field E2. The second interference picture. Since the electric fields E1 and E2 are different, the first interference picture is also different from the second interference picture. By continuously switching the first timing and the second timing, the bystander watching the side view sees a flashing picture combined with the first interference picture and the second interference picture, instead of displaying the picture, so that Avoid the purpose of bystanders to peep.

Referring back to FIG. 1 , in one or more embodiments, the light shielding layer 160 may correspond to at least one of the second electrode 180 and the third electrode 190 . For example, in FIG. 1, the light shielding layer 160 corresponds to the first electrode 170, the second electrode 180, and the third electrode 190. In other words, the light shielding layer 160 covers the first electrode 170, the second electrode 180, and the third electrode 190 in a comprehensive manner as viewed from above.

Please refer to Figure 1 and Figure 2 together. In this embodiment, the display panel may further include at least one data line 230 between the first electrode 170 and the first substrate 110. In the embodiment, the first electrode 170, the second electrode 180, and the third electrode 190 are substantially parallel to the extending direction of the data line 230. Specifically, the display panel may further include at least one scan line 240, the scan line 240 is interleaved with the data line 230, and the pixel units 140 and 150 may be electrically connected to one of the scan lines 240 and one of the data lines 230, respectively. . In the present embodiment, the first electrode 170, the second electrode 180, and the third electrode 190 are all placed above the data line 230, so the overall arrangement space of the display area of the display panel is not greatly affected. That is to say, the display panel can still maintain the original resolution and aperture ratio under the function of achieving anti-peeping.

Referring back to FIG. 1 , in the embodiment, the display panel may further include a first insulating layer 250 and a second insulating layer 260 . The first insulating layer 250 is interposed between the data line 230 and the first electrode 170. The second insulating layer 260 is interposed between the first electrode 170 and the second electrode 180 and the third electrode 190. That is, in the present embodiment, the second insulating layer 260 is located above the first insulating layer 250, the second insulating layer 260 may cover the first electrode 170, and the second electrode 180 and the third electrode 190 are both located in the second insulating layer. On layer 260.

On the other hand, the pixel unit 140 (150) includes a common electrode layer 142 (152) and a pixel electrode 144 (154). The common electrode layer 142 (152) is located between the first insulating layer 250 and the second insulating layer 260. The pixel electrode 144 (154) is located on the second insulating layer 260. Therefore, by applying a display signal and a common potential to the pixel electrode 144 (154) and the common electrode layer 142 (152), respectively, The display medium of the display medium layer 130 above the pixel unit 140 (150) is not controlled to realize the screen display of the display panel. Taking FIG. 2 as an example, the pixel unit 140 (150) may further include a transistor 146 (156), and the display panel may further include a common electrode 245, and the display signal may be transmitted to the picture by controlling the transistor 146 (156). The electrode 144 (154), and the common potential can be transmitted to the common electrode layer 142 (152) through the common electrode 245. In the present embodiment, the first electrode 170 and the common electrode layers 142 and 152 may be patterned by the same conductive layer, and the second electrode 180, the third electrode 190 and the pixel electrodes 144 and 154 may be formed by another conductive layer. The patterning is performed, but the invention is not limited thereto.

Next, details of the operation of the display panel of the present embodiment in the normal display state will be described. Referring to Figures 3, 4, and 10A together, the 10A is a cross-sectional view of the display panel of Fig. 1 when the white screen is displayed in the display state. In operation, when the display panel is in the display state, a common potential may be supplied to the first electrode 170, the second electrode 180, and the third electrode 190. For example, in the present embodiment, the switch 216 can select to provide a common potential from the common potential source 212 to the first electrode 170, and the common potential source 222 can provide a common potential to the second electrode 180 and the third electrode 190. On the other hand, the pixel electrodes 144 and 154 can receive display signals, and the common electrode layers 142 and 152 can receive a common potential. In this case, the display medium of the display medium layer 130 above the pixel units 140 and 150 can be deflected by the influence of the display signal to produce a display screen of a wide viewing angle. However, since the first electrode 170, the second electrode 180, and the third electrode 190 have a common potential, the display medium located above it is not substantially affected, so that the light can be avoided. Light is leaked at a large angle from above the first electrode 170, the second electrode 180, and the third electrode 190.

Next, please refer to Figures 3, 4 and 10B together, wherein 10B is a cross-sectional view of the display panel of Fig. 1 when the black screen is displayed in the display state. In operation, when the display panel is in the display state, a common potential may be supplied to the first electrode 170, the second electrode 180, and the third electrode 190. For example, in the present embodiment, the switch 216 can select to provide a common potential from the common potential source 212 to the first electrode 170, and the common potential source 222 can provide a common potential to the second electrode 180 and the third electrode 190. On the other hand, the pixel electrodes 144 and 154 and the common electrode layers 142 and 152 can receive a common potential. In this case, the display medium of the display medium layer 130 above the pixel units 140 and 150, the first electrode 170, the second electrode 180 and the third electrode 190 is not substantially affected, so the light cannot penetrate the display medium. Layer 130, the display panel can also present a black screen.

Referring to FIG. 11 , which is a cross-sectional view of a display panel according to another embodiment of the present invention, the difference between the embodiment and the embodiment of FIG. 1 lies in the pixel electrodes 144 , 154 and the common electrode layers 142 , 152 . position. In the present embodiment, the pixel electrodes 144 and 154 are both located between the first insulating layer 250 and the second insulating layer 260. The common electrode layers 142 and 152 are located on the second insulating layer 260. While the white screen is displayed, the pixel electrodes 144 and 154 still receive the display signal, and the common electrode layers 142 and 152 still receive the common potential. In this embodiment, the first electrode 170 and the pixel electrodes 144 and 154 may be patterned by the same conductive layer, and the second electrode 180, the third electrode 190, and the common electrode layer 142, 152 may be another guide. The electrical layer is patterned, but the invention is not limited thereto. Other details of the present embodiment are the same as those of the embodiment of Fig. 1, and therefore will not be described again.

Next, referring to FIG. 12, which is a cross-sectional view of a display panel according to still another embodiment of the present invention, the difference between this embodiment and the embodiment of FIG. 1 lies in the first electrode 170, the second electrode 180, and the third electrode 190. s position. In the present embodiment, the first insulating layer 250 is interposed between the data line 230 and the second electrode 180 and the third electrode 190. The second insulating layer 260 is interposed between the second electrode 180 and the third electrode 190 and the first electrode 170. That is, in the present embodiment, the second insulating layer 260 may cover the second electrode 180 and the third electrode 190, and the first electrode 170 is located on the second insulating layer 260. Therefore, the second electrode 180, the third electrode 190, and the common electrode layers 142, 152 can be patterned by the same conductive layer, and the first electrode 170 and the pixel electrodes 144, 154 can be patterned by another conductive layer. However, the invention is not limited thereto. Other details of the present embodiment are the same as those of the embodiment of Fig. 1, and therefore will not be described again.

Next, returning to FIG. 1 , in the embodiment, the display panel may further include at least two filter layers 270 and 280 on the second substrate 120 and between the display medium layer 130 and the second substrate 120 , and Corresponding to the two pixel units 140 and 150 respectively. In other words, the filter layers 270 and 280 can be respectively located on opposite sides of the light shielding layer 160, and the filter layer 270 is located above the pixel unit 140 for filtering the light passing through the pixel unit 140. A filter layer 280 is located above the pixel unit 150 for filtering light passing through the pixel unit 150.

Next, please refer to FIG. 13A, which is a cross-sectional view of a display panel according to still another embodiment of the present invention. The difference between this embodiment and the embodiment of Fig. 1 lies in the relative position between the pixel units 140, 150 and the filter layers 270, 280. Specifically, in the process of the display panel, misalignment may occur between the pixel units 140, 150 and the filter layers 270, 280, that is, the filter layer 270 is not located directly above the pixel unit 140, and The filter layer 280 is not located directly above the pixel unit 150. In the present embodiment, the filter layers 270 and 280 are respectively displaced to the left with respect to the pixel units 140 and 150, so that the light shielding layer 160 exposes at least a portion of the third electrode 190, that is, the light shielding layer 160 corresponds to the first electrode 170. It is disposed with the second electrode 180. In this case, the second interference circuit 220 can apply the circuit structure of FIG. 8B.

For details, please refer to Figures 3, 8B and 13A together. When the display panel is in the first timing of the anti-spy state, the switch 216 can select to provide a common potential from the common potential source 212 to the first electrode 170, and the first switch 228 can select the self-interference potential source 226 to provide the interference potential to the first The two electrodes 180, and the second switch 229 can be selected to provide a common potential from the common potential source 222 to the third electrode 190. In the second timing, the switch 216 can select to provide a common potential from the common potential source 212 to the first electrode 170. The first switch 228 can select the common potential from the common potential source 222 to the second electrode 180, and the second Switch 229 can select to provide a common potential from common potential source 222 to third electrode 190. In this way, the lateral perspective can be achieved. It should be noted that although the first interference circuit 210 of FIG. 3 is described in the present embodiment, in other embodiments, the first interference circuit 210 of FIG. 8A may be selected. As for the other details of this embodiment Since the section is the same as the embodiment of Fig. 1, it will not be described again.

Next, please refer to FIG. 13B, which is a cross-sectional view of a display panel according to still another embodiment of the present invention. The difference between this embodiment and the embodiment of Fig. 13A lies in the relative position between the pixel units 140, 150 and the filter layers 270, 280. In the present embodiment, the filter layers 270 and 280 are respectively displaced to the right with respect to the pixel units 140 and 150, so that the light shielding layer 160 exposes at least a portion of the second electrode 180, that is, the light shielding layer 160 corresponds to the first electrode 170. It is disposed with the third electrode 190. In this case, the second interference circuit 220 can also apply the circuit structure of FIG. 8B.

For details, please refer to Figures 3, 8B and 13B together. When the display panel is in the first timing of the anti-spy state, the switch 216 can select to provide a common potential from the common potential source 212 to the first electrode 170, and the first switch 228 can select the common potential from the common potential source 222 to the first The two electrodes 180, and the second switch 229 can select the self-interference potential source 226 to provide an interference potential to the third electrode 190. In the second timing, the switch 216 can select to provide a common potential from the common potential source 212 to the first electrode 170. The first switch 228 can select the common potential from the common potential source 222 to the second electrode 180, and the second Switch 229 can select to provide a common potential from common potential source 222 to third electrode 190. In this way, the lateral perspective can be achieved. It should be noted that although the first interference circuit 210 of FIG. 3 is described in the present embodiment, in other embodiments, the first interference circuit 210 of FIG. 8A may be selected. Other details of the present embodiment are the same as those of the embodiment of Fig. 13A, and therefore will not be described again.

Next, please refer to FIG. 14, which is another embodiment of the present invention. A cross-sectional view of the display panel. The difference between this embodiment and the embodiment of FIG. 1 lies in the position of the filter layers 270 and 280 and the removal of the first insulating layer 250 (as shown in FIG. 1). In this embodiment, the filter layers 270 and 280 are located on the first substrate 110 and are disposed between the display medium layer 130 and the first substrate 110, and are respectively disposed corresponding to the two pixel units 140 and 150. It is a color filter on Array (COA) technology. Specifically, in the present embodiment, the filter layers 270 and 280 can replace the first insulating layer 250, that is, the filter layers 270 and 280 can achieve the effects of filtering and insulating. Other details of the present embodiment are the same as those of the embodiment of Fig. 1, and therefore will not be described again.

It should be noted that, in the above description and drawings, the display medium of the display medium layer 130 is illustrated by liquid crystal molecules, but the invention is not limited thereto. In other embodiments, the display panel may be an electrophoretic display panel, the display medium is a microcapsule, or the display panel may be an electrowetting display panel, the display medium being a polar molecule.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

110‧‧‧First substrate

120‧‧‧second substrate

130‧‧‧Display media layer

140, 150‧‧‧ pixel units

142, 152‧‧‧ common electrode layer

144, 154‧‧‧ pixel electrodes

160‧‧‧Lighting layer

170‧‧‧First electrode

180‧‧‧second electrode

190‧‧‧ third electrode

230‧‧‧Information line

250‧‧‧first insulation

260‧‧‧Second insulation

270, 280‧‧‧ filter layer

Claims (17)

A display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; a display dielectric layer between the first substrate and the second substrate; at least two pixel units located at the first a substrate and the display medium layer; a light shielding layer between the second substrate and the display medium layer and located between the two pixel units; a first electrode located between the two pixel units On the first substrate, a second electrode and a third electrode are located on the first substrate between the two pixel units, and are respectively located on opposite sides of the first electrode, wherein the first electrode pair The light shielding layer is disposed; and a first interference circuit electrically connected to the first electrode for providing a first signal to the first electrode; and a second interference circuit electrically connected to the second electrode and the first The three electrodes are configured to provide a second signal to the second electrode and the third electrode. The display panel of claim 1, wherein the first interference circuit comprises: a common potential source for providing a common potential; an interference potential source for providing an interference potential; and a switch, electrically connected The common potential source and the interference potential source are connected to the first electrode, and the switch is used in the common potential and the interference potential Selecting one of the first signals to the first electrode. The display panel of claim 1, wherein the second interference circuit comprises: a common potential source for providing a common potential; and a common electrode electrically connected to the common potential source, the second electrode and the first a three electrode for transmitting the common potential to the second electrode and the third electrode. The display panel of claim 1, wherein the first interference circuit comprises: a common potential source for providing a common potential; and a common electrode electrically connected to the common potential source and the first electrode The common potential is transmitted to the first electrode. The display panel of claim 1, wherein the second interference circuit comprises: a common potential source for providing a common potential; an interference potential source for providing an interference potential; a first switch, electrical Connecting the common potential source and the interference potential source to the second electrode, wherein the first switch is configured to select one of the common potential and the interference potential to transmit the second signal to the second electrode; and a second switch And electrically connecting the common potential source and the interference potential source to the third electrode, wherein the second switch is used for the common potential and the dry One of the disturbing potentials is selected to transmit the second signal to the third electrode. The display panel of claim 1, wherein the light shielding layer is further disposed corresponding to at least one of the second electrode and the third electrode. The display panel of claim 1, further comprising: at least one data line between the first electrode and the first substrate. The display panel of claim 7, wherein the first electrode, the second electrode, and the third electrode are substantially parallel to an extension direction of the data line. The display panel of claim 7, further comprising: a first insulating layer between the data line and the first electrode; and a second insulating layer interposed between the first electrode and the second electrode And between the third electrodes. The display panel of claim 7, further comprising: a first insulating layer interposed between the data line and the second electrode and the third electrode; and a second insulating layer interposed between the second electrode And between the third electrode and the first electrode. The display panel as claimed in claim 1, further comprising: a first insulating layer; and a second insulating layer over the first insulating layer; and each of the pixel units includes: a common electrode layer, the first insulating layer and the second insulating layer And a pixel electrode on the second insulating layer. The display panel of claim 1, further comprising: a first insulating layer; and a second insulating layer over the first insulating layer; and each of the pixel units comprises: a pixel electrode Between the first insulating layer and the second insulating layer; and a common electrode layer on the second insulating layer. The display panel of claim 1, further comprising: at least two filter layers on the second substrate, located between the display medium layer and the second substrate, and respectively corresponding to the two pixel units. The display panel of claim 1, further comprising: at least two filter layers on the first substrate, between the display medium layer and the first substrate, and respectively corresponding to the two pixel units. A display method for a display panel, comprising: Providing a display panel, the display panel includes at least two pixel units, a first electrode, a second electrode, and a third electrode, wherein the first electrode, the second electrode, and the third electrode are both located Between the cells, and the second electrode and the third electrode are respectively located at two sides of the first electrode; when the display panel is in the anti-spy state, providing an interference potential to the first electrode and the second electrode One of the third electrodes, and providing a common potential to the first electrode, the second electrode and the third electrode; and providing the common potential to the display panel when the display panel is in a display state The first electrode, the second electrode and the third electrode. The display panel display method of claim 15, wherein the step of the display panel in the anti-spy state comprises: providing the interference potential to the first electrode at a first timing, and providing the common potential to the a second electrode and the third electrode; at a second timing, providing the common potential to the first electrode, the second electrode, and the third electrode; and switching the first timing and the second timing. The display panel display method of claim 15, wherein the step of the display panel in the anti-spy state comprises: providing the interference potential to the second electrode at a first timing, and providing the common potential to the a first electrode and the third electrode; at a second timing, providing the interference potential to the third And providing the common potential to the first electrode and the second electrode; and switching the first timing and the second timing.