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TW201007656A - Multi-color liquid crystal display device and method - Google Patents

Multi-color liquid crystal display device and method Download PDF

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Publication number
TW201007656A
TW201007656A TW97129146A TW97129146A TW201007656A TW 201007656 A TW201007656 A TW 201007656A TW 97129146 A TW97129146 A TW 97129146A TW 97129146 A TW97129146 A TW 97129146A TW 201007656 A TW201007656 A TW 201007656A
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Taiwan
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color
backlight
common
liquid crystal
segment
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TW97129146A
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Chinese (zh)
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TWI401642B (en
Inventor
shi-yue Wang
Chun-Zai Jian
Jia-Hui Chen
qiu-yuan Huang
Yan-Liang Chen
Wei-Ren Tang
jian-zhi Xu
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Powertip Technology Corp
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Abstract

The invention allows a plurality of sequentially generated common voltage signals to be modulated, and generates a new common voltage signal and a synchronous color-separation backlight control signal, so as to control backlight illumination of different colors as a backlight source. Hence, the new common voltage signal can coordinate with stage voltage signals to generate voltage differences, emit backlight sources of different colors in same mono pixels by a time-sharing manner, and synchronously control its illumination. Thereby, the mono pixels are allowed, at different time, to emit backlight sources of different colors and generate a visual superimposed effect. Consequently, just by way of mono display chips, the device via modulation can also allow single-color pixels to form a multi-color displaying effect.

Description

201007656 九、發明說明: 【發明所屬之技術領域】 抑一種液晶顯示裝置與方法,尤指不需藉由彩色渡光片 讓單色液晶面板與單階控制驅動器能產生多色多階顯示 效果的裝置與方法。 【先前技術】 參 ❹ 、習^彩色液晶顯示器均需要設置彩色遽光片,分別各 :-個早色的R/G/B晝素,同時過濾白色背光產生紅⑻ 綠⑹光、藍⑻光,再藉由混光來組合成多色顯示的 整的彩色4素’因而其大部分的光線會被濾除,導 致/光利用效率極低,且相當容易產生高熱且其成本 南中。 【發明内容】 由謓ί解決^述之缺失’本發明主要目的係在提供一種藉 y —個共同㈣訊號調變,來分時依序驅動同一單 的裝置與方法’同時驅動不同顏色的背光發亮作為 一夕^以同步分時的疊加混光,讓該單階畫素也可以顯 不多色多階的效果。 本發月匕3單色液晶面板、-單階驅動控制器、— 多色背光調變裝置盥 ^ Α ^ 板且右八执多色調變Μ,其中該單色液晶面 單階私下兩側的—共同電極與複數節段電極,而該 ㈣產錢數㈣㈣訊號與複 光源,又變背光具有至少二不同顏色背 ' x夕月光調變裝置具有複數輸入接點、一輸出 5 201007656 接點與數量對應不同顏色背光源的至少二背光控制輪出 接點,並可產生分色背光控制信號,且該複數輸入接點集 合與該輸出接點電性連接。 本發明將該單階驅動控制器藉複數節段電路與該複 數節段電極電性連結,且將該單階驅動控制器藉複數共同 電路與該多色背光調變裝置的該複數輸入接點電性連 結,並使該多色背光調變裝置的輸出接點,藉由一共同集 合電路與該共同電極電性連接,同時讓該至少二背光控制 輸出接點分別連接該至少二不同顏色背光源。 據此’該單階驅動控制器產生的複數共同電麼訊號輪 入同-個共同電極,同時讓複數共同電壓訊號經多 調變裝置的調變可產生分色背光控制信號,並由該至少二 背光控制輸出接點分職接控制該至少二不同 源發光’藉此,讓單階晝素可被分_步驅㈣射201007656 IX. Description of the invention: [Technical field of the invention] A liquid crystal display device and method, in particular, a multi-color multi-level display effect can be produced by a monochrome liquid crystal panel and a single-order control driver without using a color light-passing sheet. Apparatus and method. [Prior Art] Both the ❹ 、 and 习 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色Then, by combining light to form a whole color of the multi-color display, the majority of the light is filtered out, resulting in extremely low light utilization efficiency, and is relatively easy to generate high heat and its cost is south. SUMMARY OF THE INVENTION The main object of the present invention is to provide a device and method for driving the same single device in a time-sharing manner by using a common (four) signal modulation to simultaneously drive different colors of backlights. Light up as an overnight ^ to synchronize the time-sharing superimposed light, so that the single-order pixel can also show the effect of multi-color and multi-order. The monthly 匕3 monochrome liquid crystal panel, the single-stage drive controller, the multi-color backlight modulation device 盥^ Α ^ board and the right eight perform multi-tone Μ, wherein the monochrome liquid crystal surface is single-stage privately on both sides - a common electrode and a plurality of segment electrodes, and the (four) production money (four) (four) signal and the complex light source, and the backlight has at least two different colors of the back 'x moonlight modulation device has a plurality of input contacts, an output 5 201007656 contacts and The quantity corresponds to at least two backlight control wheel-out contacts of different color backlights, and may generate a color separation backlight control signal, and the plurality of input contact sets are electrically connected to the output contacts. The single-stage driving controller electrically connects the plurality of segment circuits to the plurality of segment electrodes, and the single-order driving controller borrows the complex common circuit and the complex input contacts of the multi-color backlight modulation device Electrically connecting and electrically connecting the output contacts of the multi-color backlight modulation device to the common electrode by a common set circuit, and simultaneously connecting the at least two backlight control output contacts to the at least two different color backlights source. According to this, the plurality of common electric signals generated by the single-stage driving controller are wheeled into the same common electrode, and the complex common voltage signal is modulated by the multi-modulation device to generate a color separation backlight control signal, and at least The two backlight control output contacts are controlled by the at least two different sources to emit light, thereby allowing the single-order element to be divided into _ step drives (four)

使其在疊加之後即可形成彩色的顯示效果 請參閱「圖1」、「圖2」與「圖3」所示 ;=!明之,容’現配合圖式說明如下·· 置,含-單色液晶面板1G、—單階驅動控制器=月= 色背光調變裝置30與一多色調變背光4〇 二 晶面㈣具有分設上下兩側的—共 電極12,㈣單色液晶 U與複數卽段 且對應該共㈣畫素⑴ . 包U以的重疊點設置,而 201007656 如圖所示,係以16個單階晝素13為例說明。又該多色調 變背光40具有至少二不同顏色背光源41,其為可以產生 紅(R)、綠(G)、藍(B)等顏色的背光源41為最佳實施方式。 ' 請一併參閱「圖4」所示,該單階驅動控制器20可以 依時序依序產生複數共同電壓訊號21與複數節段電壓訊 號(圖未示),其中複數共同電壓訊號21可以為責任週期 (duty)為1/16的共同電壓訊號21CCOMO〜COM 15),其中 φ 該複數節段電壓訊號與該複數共同電壓訊號21形成壓差 以驅動該複數單階畫素13。 請參閱「圖5」,該多色背光調變裝置30具有複數輸 入接點31、一輸出接點32與數量對應不同顏色背光源41 的至少二背光控制輸出接點33,並可產生分色背光控制信 號71,且該複數輸入接點31集合(圖示為16個)與該輸出 接點32電性連接,而該背光控制輸出接點33為3個。 請再參閱「圖2」所示,該單階驅動控制器20藉複數 _ 節段電路50與該複數節段電極12電性連結,並讓該單階 驅動控制器20藉複數共同電路60與該多色背光調變裝置 30的該複數輸入接點31電性連結,且該多色背光調變裝 置30的該輸出接點32藉一共同集合電路61與該複數共 同電極11電性連接,又該背光控制輸出接點33各藉一背 光驅動電路70連接該多色調變背光40的背光源41 (R、G、 B) ° 而本發明的驅動方法如下,首先為準備一單色液晶面 7 201007656 板10、一單階驅動控制器20、一多色背光調變裝置30與 一多色調變背光40。接著為將該單階驅動控制器20藉複 數節段電路50與該複數節段電極12電性連結,再將該單 階驅動控制器20藉複數共同電路60與該多色背光調變裝 置30的該複數輸入接點31電性連結,且使該多色背光調 變裝置30的該輸出接點32藉共同集合電路61與該複數 共同電極11電性連接,同時讓該背光控制輸出接點33各 I 藉一背光驅動電路70連接控制該多色調變背光40的不同 顏色背光源。 請再參閱「圖6」與「圖7」所示,多色背光調變裝 置30將16個輸入接點31集合在一起由輸出接點32輸 出,因此同一共同電極11所對應的單階畫素13,其由共 同集合電路61所供給的共同電壓訊號21波形(XCOM)如 「圖6」所示,亦即該單階晝素13可被16個分時共同電 壓訊號21所驅動。而此16個分時共同電壓訊號21,其經 ❹ 多色背光調變裝置30的同步調變可產生分色背光控制信 號71,以透過該背光控制輸出接點33由該背光驅動電路 70分時驅動該多色調變背光40的不同顏色背光源41 (如 「圖7」所示),以分時產生不同顏色的背光,於本實施例 中,該16個分時共同電壓訊號21可以為5、6、5的比例 分配產生分色背光控制信號71,以分別驅動該多色調變背 光40產生紅(R)、綠(G)、藍(B)等背光。 因此,藉由該共同電壓訊號21與節段電壓訊號搭配 8 201007656 所產生的壓差變化,該共同電極11所對應驅動的單階晝 素13,可被分時驅動而於同一單階晝素13中控制其是否 點亮呈現明或暗並射出不同顏色的背光,因此其在視覺疊 加之後即可形成多色顯示效果。 如上所述,本發明透過多色背光調變裝置30將複數 依序產生的共同電壓訊號21輸入控制同一列的共同電極 11,因而其與搭配的節段電壓訊號可分時控制該單階晝素 _ 13的明暗,又藉共同電壓訊號21透過該背光控制輸出接 點33由該背光驅動電路70連接控制該多色調變背光40 分時生不同顏色的背光源41,因此可藉由就由人體視覺暫 留的效果,產生彩色的顯示效果,故本發明使用列(共同 電極)與多色背光調變的技術,讓單色的液晶顯示面版與 單階的控制驅動晶片,也能來完成彩色顯示的效果。 惟上述僅為本發明之較佳實施例而已,並非用來限定 本發明實施之範圍。即凡依本發明申請專利範圍所做的均 ❹ 等變化與修飾,皆為本發明專利範圍所涵蓋。 【圖式簡單說明】 圖1,本發明的單色液晶面板的電極示意圖。 圖2,本發明的液晶顯示裝置示意圖。 圖3,本發明的多色調變背光示意圖。 圖4,本發明單階驅動控制器產生的共同電壓訊號波形 圖。 圖5,本發明多色背光調變裝置的功能示意圖。 圖6,.本發明經多色背光調變裝置調變後的共同電壓.訊號 9 201007656 , « 波形圖。 圖7,本發明經多色背光調變裝置調變後驅動不同顏色背 光源的共同電壓訊號波形圖。 - 【主要元件符號說明】 10 ·早色液晶面板 11 :共同電極 12 :節段電極 13 :單階晝素 ❹ 20:單階驅動控制器 21 :共同電壓訊號 30 :多色背光調變裝置 31 :輸入接點 32 :輸出接點 33 :背光控制輸出接點 40 :多色調變背光 41 :背光源 ® 50 :節段電路 60 :共同電路 61 :共同集合電路 70 :背光驅動電路 71 :分色背光控制信號 10Let it form a color display after superimposition. Please refer to "Figure 1", "Figure 2" and "Figure 3"; =! Ming, Rong's description with the following figure ········· Color liquid crystal panel 1G, - single-stage drive controller = month = color backlight modulation device 30 and a multi-tone change backlight 4 〇 two crystal faces (four) with the upper and lower sides of the common electrode 12, (four) monochrome liquid crystal U and The complex segment is corresponding to the total (four) pixels (1). The overlap point of the packet U is set, and 201007656 is shown as an example with 16 single-order pixels 13 as an example. Further, the multi-tone backlight 40 has at least two different color backlights 41 which are preferred embodiments for generating a backlight 41 of red (R), green (G), blue (B) or the like. As shown in FIG. 4, the single-stage driving controller 20 can sequentially generate a plurality of common voltage signals 21 and a plurality of segment voltage signals (not shown), wherein the plurality of common voltage signals 21 can be The duty cycle is 1/16 of the common voltage signal 21CCOMO~COM 15), wherein φ the complex segment voltage signal forms a voltage difference with the complex common voltage signal 21 to drive the complex single-order pixel 13. Referring to FIG. 5 , the multi-color backlight modulation device 30 has a plurality of input contacts 31 , an output contact 32 and at least two backlight control output contacts 33 corresponding to the different color backlights 41 , and can generate color separation. The backlight control signal 71 is provided, and the set of the plurality of input contacts 31 (shown as 16) is electrically connected to the output contact 32, and the backlight control output contacts 33 are three. Referring to FIG. 2 again, the single-stage drive controller 20 is electrically coupled to the plurality of segment electrodes 12 by a complex-segment circuit 50, and the single-stage drive controller 20 borrows the complex common circuit 60 and The plurality of input contacts 31 of the multi-color backlight modulation device 30 are electrically connected to each other, and the output contacts 32 of the multi-color backlight modulation device 30 are electrically connected to the plurality of common electrodes 11 by a common collecting circuit 61. The backlight control output contacts 33 are respectively connected to the backlight 41 (R, G, B) of the multi-tone backlight 40 by a backlight driving circuit 70. The driving method of the present invention is as follows: first, preparing a monochrome liquid crystal surface 7 201007656 The board 10, a single-stage drive controller 20, a multi-color backlight modulation device 30 and a multi-tone backlight 40. Then, the single-stage driving controller 20 is electrically connected to the plurality of segment electrodes 12 by the plurality of segment circuits 50, and then the single-order driving controller 20 borrows the complex common circuit 60 and the multi-color backlight modulation device 30. The plurality of input contacts 31 are electrically connected, and the output contacts 32 of the multi-color backlight modulation device 30 are electrically connected to the plurality of common electrodes 11 by a common collecting circuit 61, and the backlight is controlled to output contacts. 33 each I is connected to a different color backlight of the multi-tone backlight 40 by a backlight driving circuit 70. Referring to FIG. 6 and FIG. 7 again, the multi-color backlight modulation device 30 collects 16 input contacts 31 and outputs them by the output contacts 32. Therefore, the single-order drawing corresponding to the same common electrode 11 The common voltage signal 21 (XCOM) supplied by the common collecting circuit 61 is as shown in FIG. 6 , that is, the single-order halogen 13 can be driven by 16 time-sharing common voltage signals 21 . The 16 time-sharing common voltage signals 21, which are synchronously modulated by the multi-color backlight modulation device 30, can generate a color separation backlight control signal 71, through which the backlight control output contact 33 is divided by the backlight driving circuit 70. The different color backlights 41 of the multi-tone to backlight 40 are driven (as shown in FIG. 7) to generate backlights of different colors in a time-sharing manner. In this embodiment, the 16 time-sharing common voltage signals 21 may be The proportional distribution of 5, 6, and 5 produces a color separation backlight control signal 71 to respectively drive the multi-tone to backlight 40 to generate backlights such as red (R), green (G), and blue (B). Therefore, by the change of the voltage difference generated by the common voltage signal 21 and the segment voltage signal 8 201007656, the single-order element 13 driven by the common electrode 11 can be driven by the time division and the same single-order element. 13 controls whether it lights up to show light or dark and emits a backlight of different colors, so that it can form a multi-color display effect after visual superposition. As described above, the present invention transmits the plurality of sequentially generated common voltage signals 21 to the common electrode 11 of the same column through the multi-color backlight modulation device 30, so that the single-stage 控制 can be controlled in time with the matched segment voltage signal. The backlight 133 is connected to the backlight control circuit 70 through the backlight control circuit 70 to control the multi-tone backlight 40 to generate different colors of the backlight 41, so that the backlight 41 can be used The effect of the persistence of human vision produces a color display effect. Therefore, the present invention uses a column (common electrode) and a multi-color backlight modulation technique, so that a monochrome liquid crystal display panel and a single-stage control driving wafer can also come. Complete the effect of color display. The above are only the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. That is, all changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an electrode of a monochrome liquid crystal panel of the present invention. Figure 2 is a schematic view of a liquid crystal display device of the present invention. 3 is a schematic diagram of a multi-tone changing backlight of the present invention. Fig. 4 is a diagram showing a common voltage signal waveform generated by the single-stage drive controller of the present invention. FIG. 5 is a schematic diagram showing the function of the multicolor backlight modulation device of the present invention. Figure 6. The common voltage of the present invention modulated by a multi-color backlight modulation device. Signal 9 201007656, « Waveform diagram. FIG. 7 is a waveform diagram of a common voltage signal for driving different color backlights after being modulated by a multi-color backlight modulation device according to the present invention. - [Main component symbol description] 10 · Early color liquid crystal panel 11 : Common electrode 12 : Segment electrode 13 : Single-stage halogen element 20 : Single-stage drive controller 21 : Common voltage signal 30 : Multi-color backlight modulation device 31 : Input contact 32 : Output contact 33 : Backlight control output contact 40 : Multi-tone change backlight 41 : Backlight ® 50 : Segment circuit 60 : Common circuit 61 : Common set circuit 70 : Backlight drive circuit 71 : Color separation Backlight control signal 10

Claims (1)

201007656 ' 十、申請專利範圍: 1、一種多色液晶顯示裝置,其包含: 一單色液晶面板,該單色液晶面板具有分設上下兩 侧的一共同電極與複數節段電極; 一單階驅動控制器,該單階驅動控制器依時序依序 產生複數共同電壓訊號與複數節段電壓訊號,且該單階驅 動控制器藉複數節段電路與該複數節段電極電性連結; 一多色調變背光,該多色調變背光具有至少二不同顏 ®色背光源;以及 一多色背光調變裝置,該多色背光調變裝置具有複數 輸入接點、一輸出接點與數量對應不同顏色背光源的至少 二背光控制輸出接點,並可產生一分色背光控制信號,且 該複數輸入接點集合與該輸出接點電性連接,又該單階驅 動控制器藉複數共同電路與該多色背光調變裝置的該複 數輸入接點電性連結,且該多色背光調變裝置的該輸出接 _ 點藉一共同集合電路與該共同電極電性連接,並讓該至少 響 二背光控制輸出接點分別連接該至少二不同顏色背光源。 2、 如申請專利範圍第1項所述之多色液晶顯示裝置, 其中該單色液晶面板上具有複數單階晝素,並該單階晝素 為對應該共同電極與該節段電極的重疊點設置。 3、 如申請專利範圍第2項所述之多色液晶顯示裝置, 其中該複數節段電壓訊號與該共同電壓訊號形成壓差以 驅動該複數單階畫素。 4、 一種多色液晶顯示方法,其步驟包含: 11 201007656 準備-單色液晶面板’該單色液晶面板具有分設上下 兩側的共同電極與複數節段電極; I#夕色調變背光,該多色調變背光具有至少二不 • 同顏色背光源; 準備單階驅動控制器,該單階驅動控制器依時序依 序產生複數共同電塵訊號與複數節段電磨訊號,且將該單 階驅動控㈣藉複數節段電路與該複數㉟段電極電 結; 〇 、準備一多色背光調變裝置,該多色背光調變裝置具有 複數輸入接點、-輸出接點與數量對應不同顏色背光源的 至夕一背光控制輸出接點,並可產生-分色背光控制信 號’且該複數輸入接點集合與該輸出接點電性連接;以及 將該單階驅動控制器藉複數共同電路與該多色背 光調變裝置的複數輸入接點電性連結,且使該多色背光 調變裝置的該輪出接點藉一共同集合電路與該共同電 眷極電性連接’並讓該至少二背光控制輸出接點分別連接 該至少二不同顏色背光源。 12201007656 ' X. Patent application scope: 1. A multi-color liquid crystal display device comprising: a monochrome liquid crystal panel having a common electrode and a plurality of segment electrodes disposed on the upper and lower sides; a driving controller, the single-stage driving controller sequentially generates a plurality of common voltage signals and a plurality of segment voltage signals according to timing, and the single-order driving controller electrically connects the plurality of segment electrodes by a plurality of segment circuits; The multi-tone backlight has at least two different color® backlights; and a multi-color backlight modulation device having a plurality of input contacts, an output contact and a number corresponding to different colors At least two backlights of the backlight control the output contacts, and generate a color separation backlight control signal, and the plurality of input contact sets are electrically connected to the output contacts, and the single-order driving controller borrows the plurality of common circuits and the The plurality of input and output contacts of the multi-color backlight modulation device are electrically connected, and the output of the multi-color backlight modulation device is connected to a common set circuit And electrically connected to the common electrode, and the at least two backlight control output contacts are respectively connected to the at least two different color backlights. 2. The multi-color liquid crystal display device of claim 1, wherein the monochromatic liquid crystal panel has a plurality of single-order halogens, and the single-order halogen is an overlap of the common electrode and the segment electrode. Point settings. 3. The multi-color liquid crystal display device of claim 2, wherein the plurality of segment voltage signals form a voltage difference with the common voltage signal to drive the plurality of single-order pixels. 4, a multi-color liquid crystal display method, the steps comprising: 11 201007656 preparation - monochrome liquid crystal panel 'the monochrome liquid crystal panel has a common electrode and a plurality of segment electrodes on the upper and lower sides; I# Hz color change backlight, The multi-tone backlight has at least two backlights of the same color; preparing a single-stage driving controller, and the single-stage driving controller sequentially generates a plurality of common electric dust signals and a plurality of segment electric grinding signals according to timing, and the single-order Driving control (4) by means of a plurality of segment circuits and the plurality of 35-segment electrodes; 〇 preparing a multi-color backlight modulation device, the multi-color backlight modulation device having a plurality of input contacts, - the output contacts and the number corresponding to different colors The backlight of the backlight controls the output contact, and generates a color separation backlight control signal 'and the plurality of input contact sets are electrically connected to the output contact; and the single-order driving controller borrows the complex common circuit Electrically connecting with the plurality of input contacts of the multi-color backlight modulation device, and causing the wheel-out contact of the multi-color backlight modulation device to borrow a common set circuit and the common electricity The pole is electrically connected and the at least two backlight control output contacts are respectively connected to the at least two different color backlights. 12
TW97129146A 2008-08-01 2008-08-01 Multicolor liquid crystal display device and method TWI401642B (en)

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